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X166 - 2017-2019 generation coverage

2017-2019 Mercedes-Benz GLS service guide ADAS Calibration & Module Programming

Choose a repair service below or find your module by part number. Onsite help is available in Dallas-Fort Worth, with mail-in module service nationwide.

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Fix my ECUEngine computer Fix my TCMTransmission computer Repair my BCMBody electronics Code my vehicleCustom coding Repair a moduleElectronic module repair

Find your module

26 documented Mercedes-Benz GLS module records across the 2017-2019 generation. Search by module name or part number, then open a result for requirements and repair options.

ECU / Engine

ECM - M256 3.0L EQ Boost 48V (GLS 450) Verify by VIN A256-906-15-05

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A256-906-15-05
Protocol / method: XENTRY SCN Online
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS042 (MB M256 variant)
Notes: XENTRY SCN Online. M256 with 48V ISG. 48V-compatible charger required. Synchronize with EIS and ISM.

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ECM - M176 4.0L V8 EQ Boost 48V (GLS 580 / GLS 600 Maybach) Verify by VIN A176-906-01-05

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A176-906-01-05
Protocol / method: XENTRY SCN Online
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MED17 (MB M176 48V variant)
Notes: XENTRY SCN Online. Synchronize with EIS and ISM.

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ECM + PHEV Control Unit - M177 + E-Motor (AMG GLS 63 S E Performance) Verify by VIN A177-900-05-03

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A177-900-05-03
Protocol / method: XENTRY SCN Online
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MED17 + PHEV MCU (AMG hybrid variant)
Notes: XENTRY SCN Online. HV safety protocol required before PHEV module work. High-voltage gloves and XENTRY HV safety steps mandatory. AMG PHEV with 6.1kWh battery.

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TCM - 9G-Tronic Plus (722.9) Verify by VIN A725-271-00-03

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A725-271-00-03
Protocol / method: XENTRY SCN Online
Coding required: Yes
Cloning supported: No
Chip / MCU: MB/ZF proprietary
Notes: XENTRY SCN coding. Shift adaptation reset and drive cycle after programming.

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TCM / Transmission

TCU - 722.9 9G-Tronic 9-Speed Auto Verify by VIN 2017 A1662703600

Documented for 2017 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2017

Donor must match part family A1662703600 - requires cloning

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A1662703600
Protocol / method: J2534
Coding required: Yes
Cloning supported: Yes
Chip / MCU: Infineon TC1797
Notes: Requires Xentry/DAS SCN coding. VIN coding mandatory. MB ATF 236.15 fluid. Shift adaptation reset after replacement. Shared TCU platform with GLE W166.

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TCU - 722.9 9G-Tronic 9-Speed Auto Verify by VIN 2018-2019 A1662703600

Documented for 2018-2019 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2018, 2019

Donor must match part family A1662703600 - requires cloning

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A1662703600
Protocol / method: J2534
Coding required: Yes
Cloning supported: Yes
Chip / MCU: Infineon TC1797
Notes: Requires Xentry/DAS SCN coding. VIN coding mandatory. MB ATF 236.15 fluid. Shift adaptation reset after replacement.

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BCM / Body electronics

Front SAM (X167 2024) Bench clone required A167-900-14-05

Module information indicates cloning or bench work.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Donor must match part family A167-900-14-05 - requires cloning

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A167-900-14-05
Security: SCN Coding
Coding required: Yes
Cloning supported: No
Notes: XENTRY SCN coding mandatory. Online MB server authorization required. VIN-coded - no clone supported.

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Rear SAM (X167 2024) Verify by VIN A167-900-16-05

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A167-900-16-05
Security: SCN Coding
Coding required: Yes
Cloning supported: No
Notes: XENTRY SCN coding mandatory. MB server authorization required.

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EIS (Electronic Ignition Switch - X167) Verify by VIN A167-905-26-03

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A167-905-26-03
Security: mb_eis
Coding required: Yes
Cloning supported: No
Notes: Replacement requires XENTRY + MB dealer network authorization. Must synchronize with ECM and ISM.

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SRS / Airbag

SRS Control Unit Verify by VIN A222 900 02 03

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A222 900 02 03
Location: Under center console
Manufacturer: 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.

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SRS Control Unit Verify by VIN A222 900 47 12

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A222 900 47 12
Location: Under center console
Manufacturer: 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.

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ABS / Brakes

ESP/ABS Module (Bosch 9.3 Plus - X167 2024) Verify by VIN A167-431-12-05

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A167-431-12-05
Cloning supported: No
Notes: XENTRY coding required. Integrates with 48V EQ Boost, EABC, and PHEV regen braking. Brake bleed via XENTRY. Steering angle sensor calibration required.

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Other modules

Instrument Panel Cluster (IPC) Bench clone required A1669010002

Module information indicates cloning or bench work.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Donor must match part family A1669010002 - requires cloning

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A1669010002
Cloning supported: Yes
Notes: IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.

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Steering Angle Sensor (SAS) Verify by VIN

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Coding required: Yes
Notes: INTEGRATED (clock spring / steering column module

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Steering Angle Sensor (SAS) Verify by VIN

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Coding required: Yes
Notes: cross-year extension)

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Connectivity / Accessories

MBUX Head Unit (12.8-inch portrait) Verify by VIN A167-900-35-05

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A167-900-35-05
Notes: XENTRY coding and MB online authorization. OTA-capable.

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Digital Driver Display (dual 12.3-inch) Verify by VIN A167-900-47-05

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A167-900-47-05
Notes: XENTRY SCN coding. Mileage in EIS. Dealer authorization for mileage operations.

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E-Active Body Control ECU Verify by VIN A167-323-09-05

Confirm the procedure for your VIN and part number. Review the documented notes below.

Coverage and replacement notes

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Part number: A167-323-09-05
Notes: XENTRY coding, EABC initialization, Road Surface Scan calibration, hydraulic bleed required.

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Reference information for 2017-2019. Coverage can vary by year and equipment. Confirm the VIN and full part number before ordering a replacement.

Vehicle overview

Vehicle: Mercedes-Benz GLS
Model years: 2017-2019
Generation: X166

TOOL ACCESS MATRIX

Tools we use for this vehicle

We provide the software and equipment for the agreed work. The exact tool and procedure depend on your year, VIN and module.

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.

ADAS scan, setup, and verification

Autel, Launch Tech, Topdon

Used where aftermarket coverage supports the procedure; OEM software remains required for locked factory routines.

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

Tool requirements

Basic OBD2 scanner

View capabilities and limitations

Supported work

Read codes on SRS systems (2 documented rows)
Read codes on ECU systems (4 documented rows)
Read codes on BCM systems (3 documented rows)
Read codes on TCU / TCM systems (2 documented rows)
Read codes on ABS systems (1 documented row)
Read codes on IPC / SAS systems (3 documented rows)
Read codes on Gateway systems (8 documented rows)
Read codes on Keys systems (1 documented row)
Read codes on Immobilizer systems (2 documented rows)
Read codes on Accessory systems (3 documented rows)

Limitations

BCM programming, coding, cloning, or security work (1 documented row)
IPC / SAS programming, coding, cloning, or security work (1 documented row)
Gateway programming, coding, cloning, or security work (8 documented rows)
Immobilizer programming, coding, cloning, or security work (2 documented rows)

Factory programming software (J2534)

View capabilities and limitations

Supported work

Factory scan, coding, and calibration access: Factory routines and secure server authorization control this path when aftermarket coverage is not enough for the VIN.

Bench programmer

View capabilities and limitations

Supported work

BCM bench clone rows (1 documented row)
IPC / SAS bench clone rows (1 documented row)

Dealer or specialist

View capabilities and limitations

Supported work

Gateway dealer security rows (8 documented rows)
Immobilizer dealer security rows (2 documented rows)

Dealer security and specialist module work should be scoped by VIN before you buy parts or pay for programming.

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PLATFORM

Know this platform

This platform uses MB domain architecture - CAN-C (powertrain), CAN-B (body/comfort), Ethernet (MBUX/cameras), 48V bus (EQ Boost ISG), HV bus (AMG E Performance PHEV) with ISO 15765-4 CAN / MB XENTRY proprietary extensions.

CAN: MB domain architecture - CAN-C (powertrain), CAN-B (body/comfort), Ethernet (MBUX/cameras), 48V bus (EQ Boost ISG), HV bus (AMG E Performance PHEV)
OBD: ISO 15765-4 CAN / MB XENTRY proprietary extensions

GENERATION SERVICE SNAPSHOT

Generation service summary for Mercedes-Benz GLS X166 (2017-2019)

Generation coverage

This page consolidates Mercedes-Benz GLS service data for 2017-2019 across 3 model years; service information is available for 3 years.

Choose a year

ADAS coverage

Merged ADAS coverage includes 19 system records, including PRE-SAFE Brake (Automatic Emergency Braking) (2017), Forward Camera (Monocular) - MFC (2017), Distronic Plus - Adaptive Cruise Control (ACC) (2017), and Active Lane Keep Assist / LDW (LKA/LDW) (2017). Year-marked systems apply only to the shown range.

View ADAS data

Calibration triggers

This generation has 10 merged calibration trigger records. Trigger applicability can vary by year - verify by VIN before setup.

View triggers

Programmable modules

The merged generation page indexes 26 programmable module records across SRS, ECU, BCM, TCU/TCM, ABS, IPC coverage. Part numbers are confirmed for the exact year/VIN.

View modules

Core Auto Logic capability

Core Auto Logic supports generation-level diagnostics, ADAS calibration, module programming, and security-access planning for the Mercedes-Benz GLS 2017-2019 span, with exact-year validation before service. Mail-in module service is available nationwide.

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CALIBRATION

Do I need calibration?

Windshield Replacement 4

Front Multi-Mode Camera

2017-2019

required

XENTRY static calibration with X167-specific target board. MB-approved glass only.

Active Distance Assist Plus

2017-2019

required

XENTRY static calibration with X167-specific target board. MB-approved glass only.

Lane Change Assist

2017-2019

required

XENTRY static calibration with X167-specific target board. MB-approved glass only.

Emergency Stop Assist

2017-2019

required

XENTRY static calibration with X167-specific target board. MB-approved glass only.

Front Bumper Repair 3

2017-2019

required

SCN online coding via XENTRY. MB server authorization mandatory. PHEV requires HV safety precautions.

Forward Camera Replacement 1

2017-2019

Yes

Camera module replacement requires full recalibration using XENTRY.

Forward Radar Replacement 1

2017-2019

Yes

Radar module replacement requires alignment/calibration using XENTRY.

BSM Sensor Replacement 1

2017-2019

Yes

Blind spot monitoring sensor replacement requires calibration using XENTRY.

Mirror Replacement 1

2017-2019

Conditional

If BSD sensor is mirror-integrated, recalibration required. Verify sensor location; use XENTRY if applicable.

MODEL YEARS

Year-by-year details

Year	VIN split	Infotainment	Wireless CarPlay	Trim notes
2017	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.			Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.
2018	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.			Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.
2019	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	Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.

19 ADAS systems documented across the 2017-2019 generation. Rows that apply to only part of the generation carries a year badge.

Filter by year

ADAS CALIBRATION MATRIX

ADAS systems on this vehicle

Driver Assistance Package Plus - Active Distance Assist Distronic Plus, Active Lane Change Assist, Active Emergency Stop Assist, Blind Spot Detection Plus, E-Active Body Control (optional), AMG GLS 63 S E Performance PHEV

Scroll for part numbers and Details

System	Type	Category	Cal. Type	Supported	Part #
PRE-SAFE Brake (Automatic Emergency Braking) 2017	Front Radar	Radar	Static	YES	000-900-26-00
Forward Camera (Monocular) - MFC 2017	Forward Camera	Camera	Static	YES	000-900-97-12
Distronic Plus - Adaptive Cruise Control (ACC) 2017	Front Radar	Radar	Static	YES	000-900-26-00
Active Lane Keep Assist / LDW (LKA/LDW) 2017	Forward Camera	Camera	Static	YES	000-900-97-12
Blind Spot Assist / Rear Cross-Traffic Alert 2017	Side Radar	Radar	Static + Dynamic	YES	000-900-36-00 (L), 000-900-37-00 (R)
Rear View Camera 2017	Rear Camera	Camera	Static	YES	-
PRE-SAFE Brake (Automatic Emergency Braking) 2018	Front Radar	Radar	Static	YES	000-900-26-00
Forward Camera (Monocular) - MFC 2018	Forward Camera	Camera	Static	YES	000-900-97-12
Distronic Plus - Adaptive Cruise Control (ACC) 2018	Front Radar	Radar	Static	YES	000-900-26-00
Active Lane Keep Assist / LDW (LKA/LDW) 2018	Forward Camera	Camera	Static	YES	000-900-97-12
Blind Spot Assist / Rear Cross-Traffic Alert 2018	Side Radar	Radar	Static + Dynamic	YES	000-900-36-00 (L), 000-900-37-00 (R)
Rear View Camera 2018	Rear Camera	Camera	Static	YES	-
Forward Camera (Monocular) - MFC / Distronic Steering Assist 2019	Forward Camera	Camera	Static	YES	000-900-97-12
Forward Radar (77GHz) - Distronic Plus / AEB 2019	Front Radar	Radar	Static	YES	000-900-26-00
Front Corner Radars (PRE-SAFE Plus) 2019	Front Corner Radar	Radar	Static	YES	000-900-51-00 (L), 000-900-52-00 (R)
Active Lane Keep Assist / LDW (LKA/LDW) 2019	Forward Camera	Camera	Static	YES	000-900-97-12
Blind Spot Assist / Rear Cross-Traffic Alert 2019	Side Radar	Radar	Static + Dynamic	YES	000-900-36-00 (L), 000-900-37-00 (R)
Active Parking Assist / Parktronic (PDC) 2019	Ultrasonic	Ultrasonic	None	YES	-
Rear View Camera 2019	Rear Camera	Camera	Static	YES	-

WHEN IS CALIBRATION REQUIRED?

Triggers for ADAS recalibration

Windshield Replacement Affected: Front Multi-Mode Camera, Active Distance Assist Plus, Lane Change Assist, Emergency Stop Assist

XENTRY static calibration with X167-specific target board. MB-approved glass only.

Front Bumper Repair Affected: Front Long-Range Radar, Distronic Plus, ABA 5

Radar static alignment via XENTRY. Curb weight, level surface.

Rear Bumper Repair Affected: BSD Plus radars, Parktronic sensors

XENTRY coding confirmation. Sensor check recommended.

Suspension Service (EABC) Affected: EABC actuators, ESP

XENTRY coding, hydraulic bleed, Road Surface Scan calibration required.

Any Collision Affected: ACU, camera, radar, BSD, deployed airbag circuits, 48V, PHEV HV (AMG E Performance)

Full XENTRY scan mandatory. ACU replace-only. HV safety protocol for AMG E Performance. Camera and radar alignment required if front/rear disturbed.

Any Module Replacement Affected: FSAM, RSAM, EIS, ISM, ECM, TCM, ACU, 48V ISG, EABC ECU, PHEV units

SCN online coding via XENTRY. MB server authorization mandatory. PHEV requires HV safety precautions.

Forward Camera Replacement

Camera module replacement requires full recalibration using XENTRY.

Forward Radar Replacement

Radar module replacement requires alignment/calibration using XENTRY.

BSM Sensor Replacement

Blind spot monitoring sensor replacement requires calibration using XENTRY.

Mirror Replacement

Documented years: 2017, 2018, 2019

Year coverage is not proof of interchangeability. Confirm the full part number and vehicle configuration before buying a used module.

Security: VIN-locked (UDS)
VIN locked: Yes
Coding required: 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.).

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ARCHITECTURE & CONNECTIVITY

Architecture & Connectivity

Body Construction: Steel unibody with aluminum doors, hood, and tailgate - MHA platform
OBD Protocol: ISO 15765-4 CAN / MB XENTRY proprietary extensions
CAN Architecture: MB domain architecture - CAN-C (powertrain), CAN-B (body/comfort), Ethernet (MBUX/cameras), 48V bus (EQ Boost ISG), HV bus (AMG E Performance PHEV)
Infotainment: MBUX (12.8-inch portrait display + dual 12.3-inch driver display)
OTA Capable: Yes
Infotainment Name: Mercedes-Benz MBUX
Wireless CarPlay: Yes
ECU/TCM Unlocking: Contact us
ECU/TCM Flashing: Contact us

WHAT WE RESOLVE

X166 (2017-2019) common module and ADAS issues

ADAS calibration drift Watch for calibration needs after windshield, bumper, suspension, camera, or radar work. Documented systems include PRE-SAFE Brake (Automatic Emergency Braking) (2017), Forward Camera (Monocular) - MFC (2017), Distronic Plus - Adaptive Cruise Control (ACC) (2017), and Active Lane Keep Assist / LDW (LKA/LDW) (2017). 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.

FREQUENTLY ASKED QUESTIONS

FAQ

Can you program Mercedes-Benz GLS (2017-2019) modules?

Yes. Core Auto Logic supports generation-scoped module programming for the Mercedes-Benz GLS (2017-2019). 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 GLS (2017-2019)?

The Mercedes-Benz GLS (2017-2019) generation currently shows 12 core module records across ECU/PCM, BCM, TCU/TCM, ABS/EBCM, and SRS groups. SRS modules include SRS Control Unit. Part numbers and module variants must be confirmed for your exact year/VIN. Reference part number: A222 900 02 03 - confirm for your exact year/VIN.

Does Mercedes-Benz GLS (2017-2019) need ADAS calibration after glass or collision work?

The merged generation data documents 19 ADAS systems, including PRE-SAFE Brake (Automatic Emergency Braking) (2017), Forward Camera (Monocular) - MFC (2017), Distronic Plus - Adaptive Cruise Control (ACC) (2017), Active Lane Keep Assist / LDW (LKA/LDW) (2017), and Blind Spot Assist / Rear Cross-Traffic Alert (2017). Calibration triggers include Windshield Replacement, Front Bumper Repair, Rear Bumper Repair, and Suspension Service (EABC). Procedure type is VIN-specific scan-tool procedure; verify exact requirements by VIN before setup.

Can you reset the airbag module on Mercedes-Benz GLS (2017-2019)?

Yes. The generation data includes 2 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: A222 900 02 03 - confirm for your exact year/VIN.

Do all Mercedes-Benz GLS (2017-2019) years use the same parts?

No assumption should be made across the full span. The generation page merges rows across 2017-2019; 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.

How long does service take for Mercedes-Benz GLS (2017-2019)?

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 service is available nationwide. Exact service eligibility is confirmed from the year, VIN, module, and requested scope.

Is Mercedes-Benz GLS (2017-2019) service mobile or mail-in?

Mobile service covers DFW on-vehicle diagnostics, post-repair coding, and supported module work. Mail-in module service is available nationwide. We confirm the active path for your exact year, VIN, module, and requested scope before service.

OTHER GENERATIONS

More GLS generations

X166 2017-2019 You are here X167 2020-2026

(945) 382-4065 Get a Quote

Finish the repair

Need help finishing this repair?

Get onsite help in Dallas-Fort Worth. Ask about same-day availability or a one-time remote session for eligible non-VSP work.

XENTRY Explore one-time factory coding and programming. We confirm the software and procedure for your vehicle. Module programming & recovery Replacing a module or dealing with a failed programming attempt? Send the part numbers and fault scan for review. Onsite tools & equipment Bring in a technician or ask about hourly, daily and weekly rentals where licensing and equipment availability allow.

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