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2023-2026 Mercedes-Benz GLC Generation Guide
Mercedes-Benz GLC X254 (2023-2026) ADAS Calibration & Module Programming
Covers model years 2023-2026 - one service guide for the whole generation.
Full ADAS calibration, module programming, and key security work for every Mercedes-Benz GLC built on this platform. Same-day mobile service across the Dallas/Fort Worth metroplex; mail-in accepted nationwide.
- Platform C254
- CAN Architecture MB domain controller architecture - Ethernet backbone, CAN-FD (powertrain), CAN-B (body), 48V bus (EQ Boost)
- Security MB Vehicle Security Module (VSM) + ECM + MBUX triad - dealer network SCN authorization required; no third-party support
The ADAS, module, and security rows below are consolidated across the full 2023-2026 generation. A year badge marks rows that apply only to part of the span; rows without a badge apply to every year. Year-specific differences are summarized under “What changes across 2023-2026”.
OVERVIEW
Expert ADAS calibration, module programming, and diagnostic recovery for the 2023 Mercedes Benz GLC. On this vehicle we cover documented systems include Front Multi-Mode Camera (Active Distance Assist Distronic), Front Long-Range Radar (Distronic / ABA 5), and Blind Spot Assist Plus / Rear Cross-Traffic Alert, this C254 platform vehicle, MB VSM Gen 1 C254 (SCN-coded, server-side, OTA-capable) immobilizer support, Mercedes-Benz MBUX infotainment programming. Mobile across the DFW Metroplex, mail-in nationwide for module-bench work.
Platform
C254
Production
2016-present
Trim Levels
Trims: GLC 300, GLC 300 4MATIC, AMG GLC 43, AMG GLC 63. All include ADAS and 360 camera.
Drivetrain
RWD / AWD
Engine
-
CAN Speed
MB domain controller architecture - Ethernet backbone, CAN-FD (powertrain), CAN-B (body), 48V bus (EQ Boost)
Feature availability 4
Immobilizer: MB VSM Gen 1 C254 (SCN-coded, server-side, OTA-capable)
StandardKey programming requires manufacturer-level tool access.
Platform: C254
ConfirmedVerify platform code matches when cross-referencing part numbers across model years.
Immobilizer: EIS/EZS
StandardKey programming requires manufacturer-level tool access. Add key supported. All keys lost (AKL) supported.
Tool access for this exact year
Representative tool access paths for this exact model year, gated by the vehicle data and source packet we currently trust.
Factory scan, coding, and calibration access
Mercedes XENTRY Diagnosis / Mercedes DAS
Factory routines and secure server authorization control this path when aftermarket coverage is not enough for the VIN.
OEM subscription required
Make-level OEM tool map plus exact-year gateway and ADAS fields.
ADAS scan, setup, and verification
Autel, Launch Tech, Topdon
Used where aftermarket coverage supports the procedure; OEM software remains required for locked factory routines.
Tool subscription required
Service-level scanner-vendor source packet plus exact-year ADAS records.
Bench cloning and chip-level recovery
Alientech / Autotuner / Orange5 / Scanmatik / Flex / VVDI2 / PCMFlash / CGDI / X-Prog
Used only when the module, donor data, EEPROM, MCU, or crash-data workflow requires bench or chip-level handling.
Bench/chip-level only
Bench programmer source packet plus exact-year module/security records.
Know this platform
This platform uses MB domain controller architecture - Ethernet backbone, CAN-FD (powertrain), CAN-B (body), 48V bus (EQ Boost) with ISO 15765-4 CAN-FD / MB XENTRY proprietary extensions.
- CAN
- MB domain controller architecture - Ethernet backbone, CAN-FD (powertrain), CAN-B (body), 48V bus (EQ Boost)
- OBD
- ISO 15765-4 CAN-FD / MB XENTRY proprietary extensions
OPENPILOT / COMMA.AI
Openpilot Compatibility
Not Supported
Not supported - mercedes-benz not in openpilot support tree
Not in openpilot support tree as of April 2026. Mercedes-Benz not in openpilot support tree. Sprinter and passenger cars not ported.
Generation service summary for Mercedes-Benz GLC X254 (2023-2026)
Generation coverage
This page consolidates Mercedes-Benz GLC service data for 2023-2026 across 4 model years; 4 years have merged CCT data.
Choose a yearADAS coverage
Merged ADAS coverage includes 12 system records, including Front Multi-Mode Camera (Active Distance Assist Distronic) (2023), Front Long-Range Radar (Distronic / ABA 5) (2023), Blind Spot Assist Plus / Rear Cross-Traffic Alert (2023), and Front Corner Radars (Close-Range) (2023). Year-marked systems apply only to the shown range.
View ADAS dataCalibration triggers
This generation has 16 merged calibration trigger records. Trigger applicability can vary by year - verify by VIN before setup.
View triggersProgrammable modules
The merged generation page indexes 48 programmable module records across SRS, ECU, BCM, TCU/TCM, ABS, IPC coverage. Part numbers are confirmed for the exact year/VIN.
View modulesGateway and security
Gateway, immobilizer, and key-security coverage includes 14 merged records. Security procedures vary by year - verify by VIN.
View securityCore Auto Logic capability
Core Auto Logic supports generation-level diagnostics, ADAS calibration, module programming, security-access planning, and mail-in bench work for the Mercedes-Benz GLC 2023-2026 span, with exact-year validation before service.
Get a quoteDo I need calibration?
Windshield Replacement 10
Front Multi-Mode Camera
2023required
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. C254 camera differs from X253 - confirm C254 part. SCN coding confirmed before calibration.
Active Distance Assist
2023required
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. C254 camera differs from X253 - confirm C254 part. SCN coding confirmed before calibration.
Lane Change Assist
2023required
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. C254 camera differs from X253 - confirm C254 part. SCN coding confirmed before calibration.
Emergency Stop Assist
2023required
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. C254 camera differs from X253 - confirm C254 part. SCN coding confirmed before calibration.
Traffic Sign Assist
2023required
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. C254 camera differs from X253 - confirm C254 part. SCN coding confirmed before calibration.
Front Multi-Mode Camera
2024-2026required
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. SCN coding confirmed before calibration.
Active Distance Assist
2024-2026required
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. SCN coding confirmed before calibration.
Lane Change Assist
2024-2026required
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. SCN coding confirmed before calibration.
Emergency Stop Assist
2024-2026required
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. SCN coding confirmed before calibration.
Traffic Sign Assist
2024-2026required
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. SCN coding confirmed before calibration.
Front Bumper Repair 8
Front Long-Range Radar
2023required
Radar static alignment via XENTRY for long-range radar. Front corner radars also require static calibration if bumper was removed. Curb weight, level surface. Inspect all brackets.
Distronic
2023required
Radar static alignment via XENTRY for long-range radar. Front corner radars also require static calibration if bumper was removed. Curb weight, level surface. Inspect all brackets.
ABA 5
2023required
Radar static alignment via XENTRY for long-range radar. Front corner radars also require static calibration if bumper was removed. Curb weight, level surface. Inspect all brackets.
Front Corner Radars
2023required
Radar static alignment via XENTRY for long-range radar. Front corner radars also require static calibration if bumper was removed. Curb weight, level surface. Inspect all brackets.
Front Long-Range Radar
2024-2026required
Long-range radar static alignment and corner radar static calibration via XENTRY. Curb weight, level surface. Inspect all brackets.
Distronic
2024-2026required
Long-range radar static alignment and corner radar static calibration via XENTRY. Curb weight, level surface. Inspect all brackets.
ABA 5
2024-2026required
Long-range radar static alignment and corner radar static calibration via XENTRY. Curb weight, level surface. Inspect all brackets.
Front Corner Radars
2024-2026required
Long-range radar static alignment and corner radar static calibration via XENTRY. Curb weight, level surface. Inspect all brackets.
Rear Bumper Repair 5
Blind Spot Assist Plus
2023required
BSD rear radar XENTRY coding confirmation. Parktronic sensor check. XENTRY DTC scan after reassembly.
Rear Cross-Traffic Alert
2023required
BSD rear radar XENTRY coding confirmation. Parktronic sensor check. XENTRY DTC scan after reassembly.
Parktronic rear sensors
2023required
BSD rear radar XENTRY coding confirmation. Parktronic sensor check. XENTRY DTC scan after reassembly.
BSD Plus radars
2024-2026required
BSD XENTRY coding confirmation. Sensor check recommended.
Parktronic sensors
2024-2026required
BSD XENTRY coding confirmation. Sensor check recommended.
Mirror Replacement 3
360 Camera side views
2023required
Side cameras in mirror housing require individual XENTRY static calibration after replacement. BSD warning LED function test via XENTRY self-test.
Blind Spot Assist Plus indicator LEDs
2023required
Side cameras in mirror housing require individual XENTRY static calibration after replacement. BSD warning LED function test via XENTRY self-test.
2024-2026
Yes
Surround view mirror camera recalibration required after mirror R&R. Use XENTRY.
Rear Suspension or Alignment Work (Rear-Axle Steering equipped) 3
Rear-Axle Steering System
2023required
Rear-axle steering reset required after any rear suspension or alignment work. XENTRY automated rear steering calibration routine. Wheel alignment only valid after rear steering is confirmed at neutral. Critical - misaligned rear steering causes unpredictable handling.
ESP
2023required
Rear-axle steering reset required after any rear suspension or alignment work. XENTRY automated rear steering calibration routine. Wheel alignment only valid after rear steering is confirmed at neutral. Critical - misaligned rear steering causes unpredictable handling.
Rear BSD Radars
2023required
Rear-axle steering reset required after any rear suspension or alignment work. XENTRY automated rear steering calibration routine. Wheel alignment only valid after rear steering is confirmed at neutral. Critical - misaligned rear steering causes unpredictable handling.
Any Collision 12
ACU
2023required
Full XENTRY scan mandatory. ACU replace-only - no crash clear. Camera and radar alignment required if front/rear disturbed. Inspect 48V BSG system for fault codes after collision. Do not release vehicle without complete XENTRY scan.
camera
2023required
Full XENTRY scan mandatory. ACU replace-only - no crash clear. Camera and radar alignment required if front/rear disturbed. Inspect 48V BSG system for fault codes after collision. Do not release vehicle without complete XENTRY scan.
radars
2023required
Full XENTRY scan mandatory. ACU replace-only - no crash clear. Camera and radar alignment required if front/rear disturbed. Inspect 48V BSG system for fault codes after collision. Do not release vehicle without complete XENTRY scan.
BSD
2023required
Full XENTRY scan mandatory. ACU replace-only - no crash clear. Camera and radar alignment required if front/rear disturbed. Inspect 48V BSG system for fault codes after collision. Do not release vehicle without complete XENTRY scan.
deployed airbag circuits
2023required
Full XENTRY scan mandatory. ACU replace-only - no crash clear. Camera and radar alignment required if front/rear disturbed. Inspect 48V BSG system for fault codes after collision. Do not release vehicle without complete XENTRY scan.
48V system
2023required
Full XENTRY scan mandatory. ACU replace-only - no crash clear. Camera and radar alignment required if front/rear disturbed. Inspect 48V BSG system for fault codes after collision. Do not release vehicle without complete XENTRY scan.
ACU
2024-2026required
Full XENTRY scan mandatory. ACU replace-only. PHEV: HV safety protocol before working near battery. Camera and radar alignment required if front/rear disturbed.
camera
2024-2026required
Full XENTRY scan mandatory. ACU replace-only. PHEV: HV safety protocol before working near battery. Camera and radar alignment required if front/rear disturbed.
radars
2024-2026required
Full XENTRY scan mandatory. ACU replace-only. PHEV: HV safety protocol before working near battery. Camera and radar alignment required if front/rear disturbed.
BSD
2024-2026required
Full XENTRY scan mandatory. ACU replace-only. PHEV: HV safety protocol before working near battery. Camera and radar alignment required if front/rear disturbed.
deployed airbag circuits
2024-2026required
Full XENTRY scan mandatory. ACU replace-only. PHEV: HV safety protocol before working near battery. Camera and radar alignment required if front/rear disturbed.
48V/HV system (if PHEV)
2024-2026required
Full XENTRY scan mandatory. ACU replace-only. PHEV: HV safety protocol before working near battery. Camera and radar alignment required if front/rear disturbed.
Any Module Replacement 15
FSAM
2023required
SCN online coding via XENTRY for all modules. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. 48V system programming requires additional safety precautions.
RSAM
2023required
SCN online coding via XENTRY for all modules. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. 48V system programming requires additional safety precautions.
VSM
2023required
SCN online coding via XENTRY for all modules. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. 48V system programming requires additional safety precautions.
ECM
2023required
SCN online coding via XENTRY for all modules. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. 48V system programming requires additional safety precautions.
TCM
2023required
SCN online coding via XENTRY for all modules. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. 48V system programming requires additional safety precautions.
ACU
2023required
SCN online coding via XENTRY for all modules. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. 48V system programming requires additional safety precautions.
48V BSG
2023required
SCN online coding via XENTRY for all modules. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. 48V system programming requires additional safety precautions.
FSAM
2024-2026required
SCN online coding via XENTRY. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. PHEV requires HV safety precautions before module work.
RSAM
2024-2026required
SCN online coding via XENTRY. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. PHEV requires HV safety precautions before module work.
VSM
2024-2026required
SCN online coding via XENTRY. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. PHEV requires HV safety precautions before module work.
ECM
2024-2026required
SCN online coding via XENTRY. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. PHEV requires HV safety precautions before module work.
TCM
2024-2026required
SCN online coding via XENTRY. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. PHEV requires HV safety precautions before module work.
ACU
2024-2026required
SCN online coding via XENTRY. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. PHEV requires HV safety precautions before module work.
48V BSG
2024-2026required
SCN online coding via XENTRY. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. PHEV requires HV safety precautions before module work.
PHEV control units
2024-2026required
SCN online coding via XENTRY. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. PHEV requires HV safety precautions before module work.
Forward Radar Replacement 1
2023-2026
Yes
Radar module replacement requires alignment/calibration using XENTRY.
BSM Sensor Replacement 1
2023-2026
Yes
Blind spot monitoring sensor replacement requires calibration using XENTRY.
Rear Suspension or Alignment Work (Rear-Axle Steering) 3
Rear-Axle Steering System
2024-2026required
Rear-axle steering reset required after any rear suspension or alignment work. XENTRY automated routine. Wheel alignment only valid after rear steering confirmed at neutral.
ESP
2024-2026required
Rear-axle steering reset required after any rear suspension or alignment work. XENTRY automated routine. Wheel alignment only valid after rear steering confirmed at neutral.
Rear BSD Radars
2024-2026required
Rear-axle steering reset required after any rear suspension or alignment work. XENTRY automated routine. Wheel alignment only valid after rear steering confirmed at neutral.
Year-by-year details
| Year | VIN split | Infotainment | Wireless CarPlay | Wireless Android Auto | Trim notes |
|---|---|---|---|---|---|
| 2023 | VIN pos 4-9 identifies model/engine. Mercedes WMI: W1K, W1N, WDD, WDC. Position 4-6 = model code (e.g., 205 = C-Class, 213 = E-Class). Position 10 = model year code. | Mercedes-Benz MBUX | 1 | 1 | Trims: GLC 300, GLC 300 4MATIC, AMG GLC 43, AMG GLC 63. All include ADAS and 360 camera. |
| 2024 | VIN pos 4-9 identifies model/engine. Mercedes WMI: W1K, W1N, WDD, WDC. Position 4-6 = model code (e.g., 205 = C-Class, 213 = E-Class). Position 10 = model year code. | Mercedes-Benz MBUX | 1 | 1 | Trims: GLC 300, GLC 300 4MATIC, AMG GLC 43, AMG GLC 63. All include ADAS and 360 camera. |
| 2025 | VIN pos 4-9 identifies model/engine. Mercedes WMI: W1K, W1N, WDD, WDC. Position 4-6 = model code (e.g., 205 = C-Class, 213 = E-Class). Position 10 = model year code. | Mercedes-Benz MBUX | 1 | 1 | Trims: GLC 300, GLC 300 4MATIC, AMG GLC 43, AMG GLC 63. All include ADAS and 360 camera. |
| 2026 | VIN pos 4-9 identifies model/engine. Mercedes WMI: W1K, W1N, WDD, WDC. Position 4-6 = model code (e.g., 205 = C-Class, 213 = E-Class). Position 10 = model year code. | Mercedes-Benz MBUX | 1 | 1 | Trims: GLC 300, GLC 300 4MATIC, AMG GLC 43, AMG GLC 63. All include ADAS and 360 camera. |
12 ADAS systems documented across 2023-2026. Rows that apply to only part of the generation carry a year badge.
Filter by year
ADAS CALIBRATION MATRIX
ADAS systems on this vehicle
Driver Assistance Package Plus - Active Distance Assist Distronic, Active Lane Change Assist, Active Emergency Stop Assist, Blind Spot Assist Plus, Rear-Axle Steering (optional/AMG std), 360 Camera (optional)
Scroll for part numbers and Details
| System | Type | Category | Cal. Type | Supported | Part # | Actions |
|---|---|---|---|---|---|---|
| Front Multi-Mode Camera (Active Distance Assist Distronic) 2023 | Forward Camera | Camera | Static | YES | A254-906-38-03 | |
| Front Long-Range Radar (Distronic / ABA 5) 2023 | Front Radar | Radar | Static | YES | A254-906-48-03 | |
| Blind Spot Assist Plus / Rear Cross-Traffic Alert 2023 | Side Radar | Radar | Static + Dynamic | YES | A254-906-57-03 (L), A254-906-58-03 (R) | |
| Front Corner Radars (Close-Range) 2023 | Front Radar | Radar | Static | YES | A254-906-60-03 (FL), A254-906-61-03 (FR) | |
| 360-Degree Camera System (Parking Package with 360 Camera) 2023 | Forward Camera | Camera | Static | YES | A254-906-67-03 (CONTROLLER) | |
| Rear-Axle Steering Control Unit (optional / AMG standard) 2023 | Fused (Radar + Camera) | Fused | Static | YES | A254-460-09-03 | |
| Front Multi-Mode Camera (Active Distance Assist Distronic) 2024-2026 | Forward Camera | Camera | Static | YES | A254-906-38-03 | |
| Front Long-Range Radar (Distronic / ABA 5) 2024-2026 | Front Radar | Radar | Static | YES | A254-906-48-03 | |
| Blind Spot Assist Plus / Rear Cross-Traffic Alert 2024-2026 | Side Radar | Radar | Static + Dynamic | YES | A254-906-57-03 (L), A254-906-58-03 (R) | |
| Front Corner Radars (Close-Range) 2024-2026 | Front Radar | Radar | Static | YES | A254-906-60-03 (FL), A254-906-61-03 (FR) | |
| 360-Degree Camera System (Parking Package) 2024-2026 | Forward Camera | Camera | Static | YES | A254-906-67-03 (CONTROLLER) | |
| Rear-Axle Steering Control Unit (optional / AMG standard) 2024-2026 | Fused (Radar + Camera) | Fused | Static | YES | A254-460-09-03 |
ADAS SYSTEM
YES Supported
Identification
- System type
- Module category
- Sensor location
Part Numbers
- OEM
- Alternative
Calibration & Triggers
- Calibration type
- Programming approach
- Requires PMI
- Trigger events
Technical Notes
- Chip / MCU
- Service notes
Need this calibrated?
Get a quote for ADAS calibration WHEN IS CALIBRATION REQUIRED?
Triggers for ADAS recalibration
Windshield Replacement 2023 Affected: Front Multi-Mode Camera, Active Distance Assist, Lane Change Assist, Emergency Stop Assist, Traffic Sign Assist
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. C254 camera differs from X253 - confirm C254 part. SCN coding confirmed before calibration.
Front Bumper Repair 2023 Affected: Front Long-Range Radar, Distronic, ABA 5, Front Corner Radars
Radar static alignment via XENTRY for long-range radar. Front corner radars also require static calibration if bumper was removed. Curb weight, level surface. Inspect all brackets.
Rear Bumper Repair 2023 Affected: Blind Spot Assist Plus, Rear Cross-Traffic Alert, Parktronic rear sensors
BSD rear radar XENTRY coding confirmation. Parktronic sensor check. XENTRY DTC scan after reassembly.
Mirror Replacement 2023 Affected: 360 Camera side views, Blind Spot Assist Plus indicator LEDs
Side cameras in mirror housing require individual XENTRY static calibration after replacement. BSD warning LED function test via XENTRY self-test.
Rear Suspension or Alignment Work (Rear-Axle Steering equipped) 2023 Affected: Rear-Axle Steering System, ESP, Rear BSD Radars
Rear-axle steering reset required after any rear suspension or alignment work. XENTRY automated rear steering calibration routine. Wheel alignment only valid after rear steering is confirmed at neutral. Critical - misaligned rear steering causes unpredictable handling.
Any Collision 2023 Affected: ACU, camera, radars, BSD, deployed airbag circuits, 48V system
Full XENTRY scan mandatory. ACU replace-only - no crash clear. Camera and radar alignment required if front/rear disturbed. Inspect 48V BSG system for fault codes after collision. Do not release vehicle without complete XENTRY scan.
Any Module Replacement 2023 Affected: FSAM, RSAM, VSM, ECM, TCM, ACU, 48V BSG
SCN online coding via XENTRY for all modules. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. 48V system programming requires additional safety precautions.
Forward Radar Replacement
Radar module replacement requires alignment/calibration using XENTRY.
BSM Sensor Replacement
Blind spot monitoring sensor replacement requires calibration using XENTRY.
Windshield Replacement 2024-2026 Affected: Front Multi-Mode Camera, Active Distance Assist, Lane Change Assist, Emergency Stop Assist, Traffic Sign Assist
XENTRY static calibration with C254-specific MB target board. MB-approved glass only. SCN coding confirmed before calibration.
Front Bumper Repair 2024-2026 Affected: Front Long-Range Radar, Distronic, ABA 5, Front Corner Radars
Long-range radar static alignment and corner radar static calibration via XENTRY. Curb weight, level surface. Inspect all brackets.
Rear Bumper Repair 2024-2026 Affected: BSD Plus radars, Parktronic sensors
BSD XENTRY coding confirmation. Sensor check recommended.
Rear Suspension or Alignment Work (Rear-Axle Steering) 2024-2026 Affected: Rear-Axle Steering System, ESP, Rear BSD Radars
Rear-axle steering reset required after any rear suspension or alignment work. XENTRY automated routine. Wheel alignment only valid after rear steering confirmed at neutral.
Any Collision 2024-2026 Affected: ACU, camera, radars, BSD, deployed airbag circuits, 48V/HV system (if PHEV)
Full XENTRY scan mandatory. ACU replace-only. PHEV: HV safety protocol before working near battery. Camera and radar alignment required if front/rear disturbed.
Any Module Replacement 2024-2026 Affected: FSAM, RSAM, VSM, ECM, TCM, ACU, 48V BSG, PHEV control units
SCN online coding via XENTRY. MB server authorization mandatory. VSM replacement triggers VSM/ECM/MBUX synchronization. PHEV requires HV safety precautions before module work.
Mirror Replacement 2024-2026
Surround view mirror camera recalibration required after mirror R&R. Use XENTRY.
Modules we program on this generation
48 documented Mercedes-Benz GLC modules across 2023-2026. Open a group for part numbers, programming protocol, security notes, and clone support.
SRS MODULES
SRS Modules
SRS Control Unit x12
A2059008600 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059008600
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059001814 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059001814
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059001607 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059001607
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059009827 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059009827
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059009427 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059009427
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059008500 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059008500
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059008518 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059008518
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059008618 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059008618
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059009627 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059009627
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059009727 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059009727
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059002512 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059002512
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A2059009527 Verify by VIN Under center console
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2059009527
- LOCATION
- Under center console
- MFG
- Bosch
- NOTES
- Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
ECU MODULES
ECU Modules
ECM - M254 2.0L EQ Boost 48V (GLC 300) x2
A254-906-15-03 Verify by VIN 2023 XENTRY SCN Online
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-906-15-03
- PROTOCOL
- XENTRY SCN Online
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- Bosch MG1CS042 (MB M254 variant)
- NOTES
- XENTRY SCN Online coding - MB server authorization mandatory. M254 is a new-generation engine with integrated 48V mild hybrid starter-generator. ECM communicates with 48V BSG (Belt Starter Generator) control unit - both may require programming if related system is replaced. Synchronize with VSM and ISM after replacement. Battery charger (48V compatible) required during programming.
A254-906-15-03 Verify by VIN 2024-2026 XENTRY SCN Online
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-906-15-03
- PROTOCOL
- XENTRY SCN Online
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- Bosch MG1CS042 (MB M254 variant)
- NOTES
- XENTRY SCN Online coding - MB server authorization mandatory. M254 integrates 48V mild hybrid BSG system. ECM and BSG control unit may both require programming. Synchronize with VSM and ISM. 48V-compatible battery charger required during programming.
ECM - M139L 2.0L EQ Boost AMG (GLC 43 AMG) x2
A139-900-86-03 Verify by VIN 2023 XENTRY SCN Online
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A139-900-86-03
- PROTOCOL
- XENTRY SCN Online
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- Bosch MED17 / MG1 (AMG M139L variant)
- NOTES
- XENTRY SCN Online. AMG M139L variant with 48V mild hybrid (416hp). Long-stroke M139L differs from standard M139. Synchronize with VSM and ISM. AMG-specific boost and torque maps are server-coded.
A139-900-86-03 Verify by VIN 2024-2026 XENTRY SCN Online
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A139-900-86-03
- PROTOCOL
- XENTRY SCN Online
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- Bosch MED17 / MG1 (AMG M139L variant)
- NOTES
- XENTRY SCN Online. AMG M139L with 48V (416hp). Synchronize with VSM and ISM. AMG-specific performance maps are server-coded.
48V BSG Control Unit (EQ Boost) Verify by VIN 2023 x1
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-906-20-03
- PROTOCOL
- XENTRY SCN Online
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- Continental (48V BSG MCU)
- NOTES
- XENTRY SCN Online. 48V Belt Starter Generator controller coordinates with ECM for mild hybrid start-stop and regenerative braking. Programming requires 48V system powered down safely. Do not attempt without XENTRY 48V safety precaution protocol.
TCM - 9G-Tronic Plus (722.9 updated) x2
A725-271-03-01 Verify by VIN 2023 XENTRY SCN Online
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A725-271-03-01
- PROTOCOL
- XENTRY SCN Online
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- MB/ZF proprietary
- NOTES
- XENTRY SCN coding required. Updated 9G-Tronic Plus for C254. Shift adaptation reset and drive cycle after programming. C254 TCM - confirm part number via VIN.
A725-271-03-01 Verify by VIN 2024-2026 XENTRY SCN Online
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A725-271-03-01
- PROTOCOL
- XENTRY SCN Online
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- MB/ZF proprietary
- NOTES
- XENTRY SCN coding required. Shift adaptation reset and drive cycle after programming.
PHEV Power Electronics Control Unit (GLC 300e) Verify by VIN 2024-2026 x1
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-906-25-03
- PROTOCOL
- XENTRY SCN Online
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- Continental (PHEV MCU)
- NOTES
- XENTRY SCN Online. GLC 300e plug-in hybrid - PHEV control unit manages HV battery, e-motor, charging systems. HV safety protocol required before any PHEV module replacement. High-voltage gloves and training required. XENTRY HV safety precaution steps mandatory.
BCM MODULES
BCM Modules
Front SAM - Central Domain Controller (C254) Verify by VIN 2023 A254-900-14-03
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Donor must match part family A254-900-14-03 - requires cloning
Always match the full part number before buying a used module.
- PART
- A254-900-14-03
- SECURITY
- SCN Coding
- CODING
- Yes
- CLONE
- No
- NOTES
- XENTRY SCN coding mandatory after replacement. C254 uses domain controller architecture - Front SAM integrates more functions than X253. Online MB server authorization required. Controls exterior lighting, wiper, horn, 48V auxiliary, comfort access, and domain gateway functions. No clone supported.
Rear SAM (C254) Verify by VIN 2023 A254-900-16-03
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-900-16-03
- SECURITY
- SCN Coding
- CODING
- Yes
- CLONE
- No
- NOTES
- XENTRY SCN coding mandatory. Controls tail lamps, fuel/HV systems, liftgate, trailer hitch wiring. MB server authorization required. C254 rear SAM - not X253 compatible.
Electronic Ignition Switch / Vehicle Security Module (C254) Verify by VIN 2023 A254-905-26-03
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-905-26-03
- SECURITY
- MB VSM SCN
- CODING
- Yes
- CLONE
- No
- NOTES
- C254 uses updated Vehicle Security Module architecture replacing traditional EIS. XENTRY + MB dealer network authorization required for replacement. Must synchronize with ECM, ISM, and MBUX head unit. No third-party tool support. AKL scenario requires full MB dealer authorization.
Front SAM - Central Domain Controller (C254) Verify by VIN 2024-2026 A254-900-14-03
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Donor must match part family A254-900-14-03 - requires cloning
Always match the full part number before buying a used module.
- PART
- A254-900-14-03
- SECURITY
- SCN Coding
- CODING
- Yes
- CLONE
- No
- NOTES
- XENTRY SCN coding mandatory. C254 domain controller architecture - Front SAM integrates gateway, exterior lighting, 48V aux, comfort access. Online MB server authorization required. No clone supported.
Rear SAM (C254) Verify by VIN 2024-2026 A254-900-16-03
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-900-16-03
- SECURITY
- SCN Coding
- CODING
- Yes
- CLONE
- No
- NOTES
- XENTRY SCN coding mandatory. Controls tail lamps, HV/fuel systems, liftgate, trailer hitch wiring. MB server authorization required.
Vehicle Security Module (C254) Verify by VIN 2024-2026 A254-905-26-03
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-905-26-03
- SECURITY
- MB VSM SCN
- CODING
- Yes
- CLONE
- No
- NOTES
- XENTRY + MB dealer network authorization required. Must synchronize with ECM, ISM, and MBUX head unit. No third-party tool support. AKL requires full MB dealer authorization.
TCU / TCM TRANSMISSION MODULES
TCU / TCM Transmission Modules
TCU - 725.0 9G-Tronic 9-Speed Auto Verify by VIN 2023 A2542701000
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A2542701000
- PROTOCOL
- J2534
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- Infineon TC2xx
- NOTES
- New generation. Requires Xentry PassThru for SCN online coding. MB ATF 236.17. Enhanced security - online SCN mandatory. TCU integrated in valve body.
TCU - 725.0 9G-Tronic 9-Speed Auto Verify by VIN 2024-2026 A2542701000
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A2542701000
- PROTOCOL
- J2534
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- Infineon TC2xx
- NOTES
- Requires Xentry PassThru for SCN online coding. MB ATF 236.17. Enhanced security - online SCN mandatory. TCU integrated in valve body.
ABS / BRAKE MODULES
ABS / Brake Modules
ESP/ABS Module (Bosch 9.3 Plus - C254) Verify by VIN 2023 A254-431-12-03
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-431-12-03
- CLONE
- No
- NOTES
- XENTRY coding required after replacement. C254 unit integrates with 48V mild hybrid system and rear-axle steering data. Brake bleed cycle via XENTRY. Steering angle sensor calibration required - XENTRY automated routine. Rear-axle steering reset also required after ESP replacement. C254 unit - not compatible with X253.
ESP/ABS Module (Bosch 9.3 Plus - C254) Verify by VIN 2024-2026 A254-431-12-03
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-431-12-03
- CLONE
- No
- NOTES
- XENTRY coding required. Integrates with 48V system and rear-axle steering data. Brake bleed cycle via XENTRY. Steering angle sensor calibration required. Rear-axle steering reset also required after ESP replacement.
OTHER MODULES (IPC, SAS)
Other Modules (IPC, SAS)
Instrument Panel Cluster (IPC) Bench clone required A 254 900 88 00
clone_supported indicates cloning or bench work
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Donor must match part family A 254 900 88 00 - requires cloning
Always match the full part number before buying a used module.
- PART
- A 254 900 88 00
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
Steering Angle Sensor (SAS) Verify by VIN
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- CODING
- Yes
- NOTES
- INTEGRATED (SRM clock spring)
CONNECTIVITY & ACCESSORIES
Connectivity & Accessories
Other x8
A254-900-35-03 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-900-35-03
- NOTES
- XENTRY coding and MB online authorization after replacement. C254 uses MBUX system (new-generation from X253 COMAND). OTA update capability. Confirm all antenna, camera, and fiber connections after reinstall. Touch HVAC controls integrated into display - test climate functions after replacement.
A254-900-47-03 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-900-47-03
- NOTES
- XENTRY SCN coding required. Mileage stored in VSM - display reads from VSM. Dealer authorization for mileage-related operations. Fully digital - no analog backup.
A254-900-57-03 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-900-57-03
- NOTES
- XENTRY coding after replacement. HUD projection angle calibration required - XENTRY automated routine. Windshield angle tolerance is critical on C254.
A254-906-67-03 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-906-67-03
- NOTES
- XENTRY coding and 4-camera static calibration required. All cameras calibrated individually. Confirm target placements per C254 WIS procedure.
A254-900-35-03 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-900-35-03
- NOTES
- XENTRY coding and MB online authorization after replacement. OTA-capable - confirm latest software version after replacement. Touch HVAC integrated - test climate after replacement.
A254-900-47-03 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-900-47-03
- NOTES
- XENTRY SCN coding required. Mileage stored in VSM. Dealer authorization for mileage-related operations.
A254-900-57-03 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-900-57-03
- NOTES
- XENTRY coding after replacement. HUD projection angle calibration via XENTRY. Windshield angle tolerance critical.
A254-906-67-03 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-906-67-03
- NOTES
- XENTRY coding and 4-camera static calibration. All cameras calibrated individually per C254 WIS target procedure.
14 gateway, immobilizer, and security items documented across 2023-2026.
GATEWAY / SECURITY MODULES
Gateway / Security Modules
Central Gateway Module x8
Part 1 Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- MFG
- Renesas
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- D70F3373
- NOTES
- Compatibility label: S400 W221. Door control box | Notes: Read/Write
Part 2 Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- MFG
- Renesas
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- D70F3372
- NOTES
- Compatibility label: A164. KG intelligent computer | Notes: 315 MHz | KG intelligent computer | Notes: 433 MHz
Part 3 Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- MFG
- Renesas
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- D70F3372
- NOTES
- Compatibility label: A166. KG intelligent computer | Notes: 315 MHz
Part 4 Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- MFG
- Renesas
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- D70F3372
- NOTES
- Compatibility label: A211. KG intelligent computer | Notes: 433 MHz
Part 5 Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- MFG
- Renesas
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- D70F3624
- NOTES
- Compatibility label: A212. KG intelligent computer | Notes: 315 MHz
Part 6 Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- MFG
- Renesas
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- D70F3624
- NOTES
- Compatibility label: C200 A212. KG intelligent computer | Notes: Read/Write
Part 7 Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- MFG
- Renesas
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- D70F3372
- NOTES
- KG intelligent computer | Notes: Read/Write
Part 8 Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- D70F3372(read-write)
- NOTES
- Compatibility label: General model. Central gateway routes CAN/CAN-FD/Ethernet between module domains. Replacement requires VIN write and as-built configuration load via OEM software (ODIS, FDRS, DTS Monaco, etc.).
KEY SECURITY & IMMOBILIZER
Key Security & Immobilizer
- System MB VSM Gen 1 C254 (SCN-coded, server-side, OTA-capable)
- Add Key Yes
- All Keys Lost Yes
MB Vehicle Security Module (VSM) + ECM + MBUX triad - dealer network SCN authorization required; no third-party support
IMMOBILIZER MODULES
Immobilizer Modules
ISM - Vehicle Security Module (C254) Verify by VIN 2023 A254-905-26-03
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-905-26-03
- SECURITY
- MB VSM SCN
- NOTES
- C254 uses new Vehicle Security Module replacing traditional ISM. Part of VSM/ECM/MBUX security triad. All must be synchronized via XENTRY + MB dealer network. AKL requires full MB dealer authorization. No PIN extraction - key data is server-side.
VSM - Electronic Ignition/Security (C254) Verify by VIN 2023 A254-905-26-03
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-905-26-03
- SECURITY
- MB VSM SCN
- NOTES
- Replacement requires MB dealer network XENTRY authorization. VSM/ECM/MBUX triad synchronization required. AKL is dealer-only.
Vehicle Security Module (C254) Verify by VIN 2024-2026 A254-905-26-03
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-905-26-03
- SECURITY
- MB VSM SCN
- NOTES
- C254 VSM replacing traditional ISM. Part of VSM/ECM/MBUX security triad. Must synchronize via XENTRY + MB dealer network. AKL requires full MB dealer authorization. No PIN extraction - key data server-side.
ISM - Integrated in VSM (C254) Verify by VIN 2024-2026 A254-905-26-03
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Donor must match part family A254-905-26-03; VIN-locked
Always match the full part number before buying a used module.
- PART
- A254-905-26-03
- SECURITY
- MB VSM SCN
- NOTES
- Immobilizer function integrated in VSM on C254. Replacement requires MB dealer network XENTRY authorization.
KEY & FOB TYPES
Key & Fob Types
MB Digital Key / Smart Key Verify by VIN 2023 A254-905-95-03
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- A254-905-95-03
- NOTES
- Key programming via XENTRY + MB dealer network authorization only. C254 supports MB Digital Key (phone-as-key via NFC) in addition to physical smart key. AKL requires MB Star Diagnosis + dealer authorization. Max 8 keys + multiple digital keys per vehicle. Proximity unlock, keyless go, and phone key integrated.
MB Digital Key / Smart Key Verify by VIN 2024-2026 A254-905-95-03
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- A254-905-95-03
- NOTES
- Key programming via XENTRY + MB dealer network authorization only. C254 supports MB Digital Key (NFC phone-as-key) and physical smart key. AKL requires MB Star Diagnosis + dealer authorization. Max 8 physical keys + digital keys per vehicle.
Replacement Notes
MB VSM Gen 1 C254 (SCN-coded, server-side, OTA-capable) system. XENTRY/DAS required for key programming and module replacement. No obd pin extraction; akl supported.
ARCHITECTURE & CONNECTIVITY
Architecture & Connectivity
- Body Construction
- Steel/aluminum multi-material unibody (MRA2 architecture)
- OBD Protocol
- ISO 15765-4 CAN-FD / MB XENTRY proprietary extensions
- CAN Architecture
- MB domain controller architecture - Ethernet backbone, CAN-FD (powertrain), CAN-B (body), 48V bus (EQ Boost)
- Infotainment
- MBUX (11.9-inch portrait display + 12.3-inch digital cockpit)
- OTA Capable
- Yes
- Infotainment Name
- Mercedes-Benz MBUX
- Wireless CarPlay
- Yes
- Wireless Android Auto
- Yes
- ECU Unlock Supported
- No
- Custom Programming
- Yes
WHAT WE RESOLVE
X254 (2023-2026) common module and ADAS issues
- ADAS calibration drift Watch for calibration needs after windshield, bumper, suspension, camera, or radar work. Documented systems include Front Multi-Mode Camera (Active Distance Assist Distronic) (2023), Front Long-Range Radar (Distronic / ABA 5) (2023), Blind Spot Assist Plus / Rear Cross-Traffic Alert (2023), and Front Corner Radars (Close-Range) (2023). Year-marked systems apply only to the shown range.
- SRS crash-data and warning light SRS service can involve SRS Control Unit. Part numbers and crash-data workflow are confirmed for the exact year/VIN.
- Replacement module setup ECU/PCM replacement programming, BCM configuration, TCU/TCM cloning, ABS/EBCM setup are represented in the merged generation data. Rows with year ranges do not apply to every model year; verify by VIN.
- Gateway, key, and immobilizer access Gateway, key, and immobilizer procedures are represented by 14 merged security records. Access and all-keys-lost support varies by year - verify by VIN.
FREQUENTLY ASKED QUESTIONS
FAQ
Can you program Mercedes-Benz GLC (2023-2026) modules?
Yes. Core Auto Logic supports generation-scoped module programming for the Mercedes-Benz GLC (2023-2026). The merged generation data includes ECU/PCM, BCM, TCU/TCM, ABS/EBCM, and SRS coverage. Rows marked with a year range apply only to that part of the span; unmarked rows are present across the merged generation data.
Which modules are documented for Mercedes-Benz GLC (2023-2026)?
The Mercedes-Benz GLC (2023-2026) generation currently shows 30 core module records across ECU/PCM, BCM, TCU/TCM, ABS/EBCM, and SRS groups. SRS examples include SRS Control Unit. Part numbers and module variants must be confirmed for your exact year/VIN. Reference part number: A2059008600 - confirm for your exact year/VIN.
Does Mercedes-Benz GLC (2023-2026) need ADAS calibration after glass or collision work?
The merged generation data documents 12 ADAS systems, including Front Multi-Mode Camera (Active Distance Assist Distronic) (2023), Front Long-Range Radar (Distronic / ABA 5) (2023), Blind Spot Assist Plus / Rear Cross-Traffic Alert (2023), Front Corner Radars (Close-Range) (2023), and 360-Degree Camera System (Parking Package with 360 Camera) (2023). Calibration triggers include Windshield Replacement (2023), Front Bumper Repair (2023), Rear Bumper Repair (2023), and Mirror Replacement (2023). Procedure type is VIN-specific scan-tool procedure; verify exact requirements by VIN before setup.
Can you reset the airbag module on Mercedes-Benz GLC (2023-2026)?
Yes. The generation data includes 12 SRS records, including SRS Control Unit. Bench reset, cloning, and replacement setup are handled after part-number review. Any SRS part number shown for this generation is planning data only - confirm for your exact year/VIN. Reference part number: A2059008600 - confirm for your exact year/VIN.
Do all Mercedes-Benz GLC (2023-2026) years use the same parts?
No assumption should be made across the full span. The generation page merges rows across 2023-2026; any row that does not span all data-bearing years is printed with its year range or treated as varies by year - verify by VIN. Part numbers always require exact year/VIN confirmation before ordering, cloning, or programming.
Can you program keys or immobilizer systems for Mercedes-Benz GLC (2023-2026)?
Yes, where the VIN and security workflow support it. The generation data includes 14 gateway, immobilizer, or key-security records. Gateway examples include Central Gateway Module. Key records are present in the merged generation data. Security access, all-keys-lost eligibility, and add-key workflows vary by year - verify by VIN.
How long does service take for Mercedes-Benz GLC (2023-2026)?
Most programming, cloning, SRS, and calibration jobs are quoted after VIN, DTC, part number, and repair-scope review. Labor time varies by year - verify by VIN before scheduling. Mail-in module work typically depends on module condition, donor data, and shipping window.
Is Mercedes-Benz GLC (2023-2026) service mobile or mail-in?
Both paths are available depending on the job. Mobile service covers DFW on-vehicle diagnostics, ADAS setup, key programming, and post-repair coding. Mail-in service covers ECU, BCM, SRS, TCU, ABS, and other bench module work nationwide. We confirm the correct path for your exact year/VIN before scheduling.
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