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G22/G23 - 2021-2026 generation coverage

2021-2026 BMW 4 Series 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

117 documented BMW 4 Series module records across the 2021-2026 generation. Search by module name or part number, then open a result for requirements and repair options.

ECU / Engine

DME - B48B20 2.0L (430i / 430i xDrive) 2 records

12148-8651574 Verify by VIN 2021 ISTA SDP

Documented for 2021 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2021

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

Part number: 12148-8651574
Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: ISTA SDP + ISN adaptation mandatory. BDC ISN must match DME.

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12148-8651574 Verify by VIN 2022 ISTA SDP

Documented for 2022 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2022

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

Part number: 12148-8651574
Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: ISTA SDP + ISN adaptation. Battery support required.

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DME - B58B30 3.0L I6 (440i / 440i xDrive) 2 records

12148-8491100 Verify by VIN 2021 ISTA SDP

Documented for 2021 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2021

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

Part number: 12148-8491100
Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: ISN adaptation mandatory. 382hp calibration. Not interchangeable with B48 DME.

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12148-8491100 Verify by VIN 2022 ISTA SDP

Documented for 2022 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2022

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

Part number: 12148-8491100
Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: ISN adaptation. 382hp.

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DME - S58 3.0L I6 Bi-Turbo (M4 / M4 Competition G82) Verify by VIN 2021 1 record

Documented for 2021 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2021

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

Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: S58 DME on M4 G82. ISN mandatory. Competition (503hp) distinct from standard (473hp) software. BMW M dealer auth may be required. M4 xDrive (2022+) adds AWD - do not use RWD M4 DME on xDrive variant. Part number via EPC.

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DME - S58 3.0L I6 (M4 RWD / M4 Competition / M4 xDrive 2022) Verify by VIN 2022 1 record

Documented for 2022 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2022

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

Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: M4 xDrive (AWD) added 2022. ISN mandatory. Competition software distinct from standard. BMW M dealer auth may be required.

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DME - B48B20 2.0L (430i) Verify by VIN 2023-2026 1 record

Documented for 2023-2026 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2023, 2024, 2025, 2026

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

Part number: 12148-8651574
Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: ISTA SDP + ISN adaptation. Battery support required.

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DME - B58B30 3.0L I6 (440i / M440i) 2 records

12148-8491100 Verify by VIN 2023 ISTA SDP

Documented for 2023 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2023

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

Part number: 12148-8491100
Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: ISN adaptation. Not interchangeable with B48.

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12148-8491100 Verify by VIN 2024-2026 ISTA SDP

Documented for 2024-2026 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2024, 2025, 2026

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

Part number: 12148-8491100
Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: ISN adaptation. Not interchangeable with B48.

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DME - S58 3.0L I6 Bi-Turbo (M4 / M4 Competition / M4 xDrive) 2 records

Part 1 Verify by VIN 2023 ISTA SDP

Documented for 2023 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2023

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

Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: ISN mandatory. Competition distinct from standard. M4 xDrive distinct from RWD. BMW M dealer auth may be required.

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Part 2 Verify by VIN 2024-2026 ISTA SDP

Documented for 2024-2026 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2024, 2025, 2026

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

Protocol / method: ISTA SDP
Coding required: Yes
Cloning supported: No
Chip / MCU: Bosch MG1CS003
Notes: ISN mandatory. Competition vs standard distinct. M4 xDrive vs RWD distinct. BMW M dealer auth may be required.

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TCM / Transmission

TCU - ZF 8HP51 8-Speed Auto Verify by VIN 2021 24008950

Documented for 2021 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2021

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

Part number: 24008950
Protocol / method: OBD
Coding required: Yes
Cloning supported: No
Chip / MCU: Infineon Tricore TC297
Notes: New G22 platform. Requires ISTA+ for programming. ZF Lifeguard 8 fluid. Online coding required. Security gateway active.

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TCU - ZF 8HP51 8-Speed Auto Verify by VIN 2022-2023 24008950

Documented for 2022-2023 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2022, 2023

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

Part number: 24008950
Protocol / method: OBD
Coding required: Yes
Cloning supported: No
Chip / MCU: Infineon Tricore TC297
Notes: Requires ISTA+ for programming. ZF Lifeguard 8 fluid. Online coding required. Security gateway active.

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TCU - ZF 8HP51 8-Speed Auto Verify by VIN 2024-2026 24008950

Documented for 2024-2026 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2024, 2025, 2026

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

Part number: 24008950
Protocol / method: OBD
Coding required: Yes
Cloning supported: No
Chip / MCU: Infineon Tricore TC297
Notes: Requires ISTA+ for programming. ZF Lifeguard 8 fluid. Online coding mandatory. Security gateway blocks aftermarket tools.

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BCM / Body electronics

BDC - Body Domain Controller (G22/G26) Verify by VIN 2021 61356-9472831

Documented for 2021 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2021

Donor must match part family 61356-9472831 - requires cloning

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

Part number: 61356-9472831
Security: BMW ISN / BDC
Coding required: Yes
Cloning supported: No
Notes: BDC standard on 2021 G22/G26. EtherBoot SDP flash. ISN synchronization with DME mandatory. Clone not supported. Digital Key NFC interface. Full ISTA vehicle order coding required.

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BDC - Body Domain Controller (G22/G26 2022) Verify by VIN 2022 61356-9472831

Documented for 2022 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2022

Donor must match part family 61356-9472831 - requires cloning

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

Part number: 61356-9472831
Security: BMW ISN / BDC
Coding required: Yes
Cloning supported: No
Notes: BDC standard. EtherBoot SDP flash. ISN sync with DME mandatory. Clone not supported. Full ISTA coding.

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BDC - Body Domain Controller (G22/G26 2023) Verify by VIN 2023 61357-9878234

Documented for 2023 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2023

Donor must match part family 61357-9878234 - requires cloning

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

Part number: 61357-9878234
Security: BMW ISN / BDC
Coding required: Yes
Cloning supported: No
Notes: Updated BDC on 2023 G22/G26 for Digital Key Plus UWB. EtherBoot SDP flash. ISN sync with DME mandatory. Clone not supported. Full ISTA coding. Part number approximate.

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BDC - Body Domain Controller (G22/G26 2024) Verify by VIN 2024-2026 61357-9878234

Documented for 2024-2026 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2024, 2025, 2026

Donor must match part family 61357-9878234 - requires cloning

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

Part number: 61357-9878234
Security: BMW ISN / BDC
Coding required: Yes
Cloning supported: No
Notes: BDC with UWB on 2024 G22/G26. EtherBoot SDP flash. ISN sync with DME. Clone not supported. Full ISTA coding. Verify 2024-specific part number via EPC - minor running changes possible.

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

Part number: 72127441496
Location: Under center console
Manufacturer: Continental
Notes: Requires ISTA/D or compatible tool for coding. VIN must be programmed to replacement module. Transport mode must be deactivated. Disconnect battery and wait 10 minutes before removal.

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ABS / Brakes

DSC - Dynamic Stability Control (G22/G26) Verify by VIN 2021 34526-869320

Documented for 2021 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2021

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

Part number: 34526-869320
Cloning supported: No
Notes: ISTA coding required. Hydraulic bleed via ISTA. Steering angle recalibration. G22 RWD: standard DSC. G22 xDrive: xDrive AWD adaptation also required. Optional carbon ceramic brakes on M4 - different brake pad sensor circuit.

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DSC - Dynamic Stability Control (G22/G26) Verify by VIN 2022 34526-869320

Documented for 2022 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2022

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

Part number: 34526-869320
Cloning supported: No
Notes: ISTA coding. Hydraulic bleed. Steering angle recalibration. M4 RWD: M-specific DSC (MDM). Part number approximate.

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DSC - Dynamic Stability Control (G22/G26) Verify by VIN 2023 34526-869320

Documented for 2023 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2023

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

Part number: 34526-869320
Cloning supported: No
Notes: ISTA coding. Hydraulic bleed. Steering angle recalibration. M4: M-specific DSC. M4 xDrive: xDrive M DSC calibration. Part number approximate.

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DSC - Dynamic Stability Control (G22/G26 2024) Verify by VIN 2024-2026 34526-869320

Documented for 2024-2026 within this generation. Confirm the exact vehicle by VIN.

Coverage and replacement notes

Documented years: 2024, 2025, 2026

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

Part number: 34526-869320
Cloning supported: No
Notes: ISTA coding. Hydraulic bleed. Steering angle recalibration. M4 / M4 xDrive: M-specific DSC dataset. Part number approximate.

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Other modules

Instrument Panel Cluster (IPC) Bench clone required 62108748999

Module information indicates cloning or bench work.

Coverage and replacement notes

Documented years: 2021, 2022, 2023, 2024, 2025, 2026

Donor must match part family 62108748999 - requires cloning

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

Part number: 62108748999
Cloning supported: Yes
Notes: G22/G26 Live Cockpit Pro

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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: 2021, 2022, 2023, 2024, 2025, 2026

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 (ZGM steering column)

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

Notes: Digital Key Plus UWB on 2024 G22/G26. BMW app provisioning.

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Reference information for 2021-2026. Coverage can vary by year and equipment. Confirm the VIN and full part number before ordering a replacement.

Vehicle overview

Vehicle: BMW 4 Series
Model years: 2021-2026
Generation: G22/G23

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

BMW ISTA-D / BMW ISTA-P

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 (57 documented rows)
Read codes on ECU systems (11 documented rows)
Read codes on BCM systems (4 documented rows)
Read codes on TCU / TCM systems (3 documented rows)
Read codes on ABS systems (4 documented rows)
Read codes on IPC / SAS systems (2 documented rows)
Read codes on Gateway systems (21 documented rows)
Read codes on Keys systems (3 documented rows)
Read codes on Immobilizer systems (4 documented rows)
Read codes on Accessory systems (15 documented rows)

Limitations

IPC / SAS programming, coding, cloning, or security work (1 documented row)
Gateway programming, coding, cloning, or security work (21 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

IPC / SAS bench clone rows (1 documented row)

Dealer or specialist

View capabilities and limitations

Supported work

Gateway dealer security rows (21 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 FlexRay, MOST, K-CAN, K-CAN2, PT-CAN, PT-CAN2, Ethernet (EtherBoot / BDC) with ISO 15765-4 CAN / BMW-specific UDS (ISTA required).

CAN: FlexRay, MOST, K-CAN, K-CAN2, PT-CAN, PT-CAN2, Ethernet (EtherBoot / BDC)
OBD: ISO 15765-4 CAN / BMW-specific UDS (ISTA required)

CAN architecture varies by year

OPENPILOT / COMMA.AI

Openpilot Compatibility

Not Supported

Not supported - bmw not in openpilot support tree

Not in openpilot support tree as of April 2026. BMW not in openpilot official tree. No community port has been merged.

GENERATION SERVICE SNAPSHOT

Generation service summary for BMW 4 Series G22/G23 (2021-2026)

Generation coverage

This page consolidates BMW 4 Series service data for 2021-2026 across 6 model years; service information is available for 6 years.

Choose a year

ADAS coverage

Merged ADAS coverage includes 11 system records, including Active Driving Assistant - KAFAS 3 Forward Camera (2021), Forward Radar (77GHz) (2021), Blind Spot Detection (BSD) - Rear Side Radar (2021), and Active Driving Assistant - KAFAS 3 Forward Camera (2022). Year-marked systems apply only to the shown range.

View ADAS data

Calibration triggers

This generation has 21 merged calibration trigger records. Trigger applicability can vary by year - verify by VIN before setup.

View triggers

Programmable modules

The merged generation page indexes 117 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 BMW 4 Series 2021-2026 span, with exact-year validation before service. Mail-in module service is available nationwide.

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2024-2026

required

Confirm G22 coupe vs G26 Gran Coupe (ICE) glass - different from i4 G26 BEV glass. KAFAS 3 static + dynamic via ISTA. BMW-approved glass. DTC 480B.

Front Bumper Repair or Replacement 3

FRSF Radar

2021

required

G22 and G26 front bumper profiles differ - confirm correct bracket. M4 bumper differs further. ISTA static alignment. Level surface.

Engine Management

2021

required

S58 DME ISN mandatory. Competition vs standard software distinct. BMW M dealer auth may be required. M4 xDrive vs RWD DME not interchangeable.

ISN

2021

required

S58 DME ISN mandatory. Competition vs standard software distinct. BMW M dealer auth may be required. M4 xDrive vs RWD DME not interchangeable.

M-specific calibrations

DSC

2023

required

Full ISTA scan. ACSM replace-only. Confirm G22 vs G26 airbag config.

Forward Camera Replacement 1

2021-2026

Yes

Camera module replacement requires full recalibration using ISTA+.

Forward Radar Replacement 1

2021-2026

Yes

Radar module replacement requires alignment/calibration using ISTA+.

BSM Sensor Replacement 1

2021-2026

Yes

Blind spot monitoring sensor replacement requires calibration using ISTA+.

Mirror Replacement 1

2021-2026

Conditional

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

Front Bumper Repair 4

FRSF Radar

2022

required

Confirm G22 vs G26 vs M4 bumper bracket. ISTA static alignment. DTC 48A0.

ACC

2022

required

Confirm G22 vs G26 vs M4 bumper bracket. ISTA static alignment. DTC 48A0.

FRSF Radar

2023-2026

required

Confirm G22 vs G26 vs M4 bracket. ISTA static alignment. DTC 48A0.

ACC

2023-2026

required

Confirm G22 vs G26 vs M4 bracket. ISTA static alignment. DTC 48A0.

M4 xDrive DME or DSC Replacement 3

Engine Management

2022

required

M4 xDrive software distinct from RWD M4. ISN mandatory. BMW M dealer auth may be required. DSC must have xDrive M calibration.

xDrive AWD

2022

required

M4 xDrive software distinct from RWD M4. ISN mandatory. BMW M dealer auth may be required. DSC must have xDrive M calibration.

ISN

2022

required

M4 xDrive software distinct from RWD M4. ISN mandatory. BMW M dealer auth may be required. DSC must have xDrive M calibration.

Rear Bumper Repair or Replacement 1

2022-2026

Yes

BSD radar alignment required after rear bumper R&R. Use ISTA+.

MODEL YEARS

Year-by-year details

Year	VIN split	Infotainment	Wireless CarPlay	Wireless Android Auto	Trim notes
2021	VIN pos 4-7 identifies model/body/engine/steering. Position 4-5 = model series (e.g., VA = 3 Series). Position 7 = engine. BMW WMI: WBA, WBS, 5UX. Position 10 = model year code.	BMW iDrive 7	1		Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.
2022	VIN pos 4-7 identifies model/body/engine/steering. Position 4-5 = model series (e.g., VA = 3 Series). Position 7 = engine. BMW WMI: WBA, WBS, 5UX. Position 10 = model year code.	BMW iDrive 7	1		Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.
2023	VIN pos 4-7 identifies model/body/engine/steering. Position 4-5 = model series (e.g., VA = 3 Series). Position 7 = engine. BMW WMI: WBA, WBS, 5UX. Position 10 = model year code.	BMW iDrive 8	1	1	Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.
2024	VIN pos 4-7 identifies model/body/engine/steering. Position 4-5 = model series (e.g., VA = 3 Series). Position 7 = engine. BMW WMI: WBA, WBS, 5UX. Position 10 = model year code.	BMW iDrive 8	1	1	Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.
2025	VIN pos 4-7 identifies model/body/engine/steering. Position 4-5 = model series (e.g., VA = 3 Series). Position 7 = engine. BMW WMI: WBA, WBS, 5UX. Position 10 = model year code.	BMW iDrive 8	1	1	Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.
2026	VIN pos 4-7 identifies model/body/engine/steering. Position 4-5 = model series (e.g., VA = 3 Series). Position 7 = engine. BMW WMI: WBA, WBS, 5UX. Position 10 = model year code.	BMW iDrive 8	1	1	Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.

YEAR-BY-YEAR CHANGES

What changes across 2021-2026

Differences versus the generation reference. Years not listed here match the shared platform data on this page.

2023

Infotainment: BMW iDrive 8 (was BMW iDrive 7)
Wireless Android Auto: Yes

2024

Infotainment: BMW iDrive 8 (was BMW iDrive 7)
Wireless Android Auto: Yes

2025

Infotainment: BMW iDrive 8 (was BMW iDrive 7)
Wireless Android Auto: Yes

2026

Infotainment: BMW iDrive 8 (was BMW iDrive 7)
Wireless Android Auto: Yes

11 ADAS systems documented across the 2021-2026 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

BMW Driving Assistance Package / Driving Assistance Professional Package

Scroll for part numbers and Details

System	Type	Category	Cal. Type	Supported	Part #
Active Driving Assistant - KAFAS 3 Forward Camera 2021	Forward Camera	Camera	Static	YES	66536-7927456
Forward Radar (77GHz) 2021	Front Radar	Radar	Static	YES	66316-8798014
Blind Spot Detection (BSD) - Rear Side Radar 2021	Side Radar	Radar	Static + Dynamic	YES	66326-9261495 (L), 66326-9261496 (R)
Active Driving Assistant - KAFAS 3 Forward Camera 2022	Forward Camera	Camera	Static	YES	66536-7927456
Forward Radar (77GHz) 2022	Front Radar	Radar	Static	YES	66316-8798014
Blind Spot Detection (BSD) - Rear Side Radar 2022-2026	Side Radar	Radar	Static + Dynamic	YES	66326-9261495 (L), 66326-9261496 (R)
Active Driving Assistant - KAFAS 3 Forward Camera 2023	Forward Camera	Camera	Static	YES	66536-7927456
Forward Radar (77GHz) 2023	Front Radar	Radar	Static	YES	66316-8798014
Active Driving Assistant Professional - Highway Assistant 2023	Forward Camera	Camera	Static + Dynamic	YES	66536-7927456 (SHARED KAFAS 3)
Active Driving Assistant - KAFAS 3 Forward Camera 2024-2026	Forward Camera	Camera	Static	YES	66536-7927456
Forward Radar (77GHz) 2024-2026	Front Radar	Radar	Static	YES	66316-8798014

WHEN IS CALIBRATION REQUIRED?

Triggers for ADAS recalibration

Windshield Replacement 2021 Affected: KAFAS 3, LDW, FCW, ACC

G22 coupe vs G26 Gran Coupe windshields have different rake angles - confirm body style-specific glass. KAFAS 3 static + dynamic via ISTA. BMW-approved glass. DTC 480B if incomplete.

Front Bumper Repair or Replacement 2021 Affected: FRSF Radar, ACC, Pre-Collision

G22 and G26 front bumper profiles differ - confirm correct bracket. M4 bumper differs further. ISTA static alignment. Level surface.

Rear Bumper Repair 2021 Affected: BSD Radar (L/R)

G22 vs G26 rear bumper profiles differ - confirm BSD bracket spec. ISTA coding. Static calibration if removed.

BDC Replacement 2021 Affected: Immobilizer, Central Locking, Digital Key, Exterior Lighting

Full ISTA coding. ISN sync with DME. Keys re-adapted. EtherBoot flash. M4: confirm M-specific option codes in BDC.

M4 DME Replacement 2021 Affected: Engine Management, ISN, M-specific calibrations

S58 DME ISN mandatory. Competition vs standard software distinct. BMW M dealer auth may be required. M4 xDrive vs RWD DME not interchangeable.

Any Collision 2021 Affected: ACSM, KAFAS 3, FRSF, BSD, DSC

Full ISTA scan. ACSM replace-only. G22 coupe has different airbag pattern - confirm body style during scan.

Forward Camera Replacement

Camera module replacement requires full recalibration using ISTA+.

Forward Radar Replacement

Radar module replacement requires alignment/calibration using ISTA+.

BSM Sensor Replacement

Blind spot monitoring sensor replacement requires calibration using ISTA+.

Mirror Replacement

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

Windshield Replacement 2022 Affected: KAFAS 3, LDW, FCW, ACC

Confirm G22 coupe vs G26 Gran Coupe glass spec. KAFAS 3 static + dynamic via ISTA. BMW-approved glass. DTC 480B.

Front Bumper Repair 2022 Affected: FRSF Radar, ACC

Confirm G22 vs G26 vs M4 bumper bracket. ISTA static alignment. DTC 48A0.

M4 xDrive DME or DSC Replacement 2022 Affected: Engine Management, xDrive AWD, ISN

M4 xDrive software distinct from RWD M4. ISN mandatory. BMW M dealer auth may be required. DSC must have xDrive M calibration.

Any Collision 2022, 2024-2026 Affected: ACSM, KAFAS 3, FRSF, BSD, DSC

Full ISTA scan. ACSM replace-only. Confirm G22 vs G26 airbag configuration.

Rear Bumper Repair or Replacement 2022-2026

BSD radar alignment required after rear bumper R&R. Use ISTA+.

Windshield Replacement 2023 Affected: KAFAS 3, LDW, FCW, ACC, Highway Assistant (if equipped)

Confirm G22 vs G26 glass spec. KAFAS 3 static + dynamic via ISTA. BMW-approved glass. DTC 480B.

Front Bumper Repair 2023-2026 Affected: FRSF Radar, ACC

Confirm G22 vs G26 vs M4 bracket. ISTA static alignment. DTC 48A0.

BDC Replacement 2023 Affected: Immobilizer, Digital Key Plus UWB, Exterior Lighting

Full ISTA coding. ISN sync with DME. Keys re-adapted. Digital Key Plus re-provisioned. EtherBoot flash.

Any Collision 2023 Affected: ACSM, KAFAS 3, FRSF, BSD, DSC

Full ISTA scan. ACSM replace-only. Confirm G22 vs G26 airbag config.

Windshield Replacement 2024-2026 Affected: KAFAS 3, LDW, FCW, ACC, Highway Assistant

Confirm G22 coupe vs G26 Gran Coupe (ICE) glass - different from i4 G26 BEV glass. KAFAS 3 static + dynamic via ISTA. BMW-approved glass. DTC 480B.

BDC Replacement 2024-2026 Affected: Immobilizer, Digital Key Plus UWB

Documented years: 2021, 2022, 2023, 2024, 2025, 2026

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: 9S12XEQ384(3M25J)
Notes: Compatibility label: BMW E Serices. 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 hood, front subframe; G22 2-door coupe; G26 4-door gran coupe
OBD Protocol: ISO 15765-4 CAN / BMW-specific UDS (ISTA required)
CAN Architecture: FlexRay, MOST, K-CAN, K-CAN2, PT-CAN, PT-CAN2, Ethernet (EtherBoot / BDC)
Infotainment: BMW iDrive 7 / MGU (12.3 inch)
OTA Capable: No
Infotainment Name: BMW iDrive 7
Wireless CarPlay: Yes
ECU/TCM Unlocking: Contact us
ECU/TCM Flashing: Contact us

WHAT WE RESOLVE

G22/G23 (2021-2026) common module and ADAS issues

ADAS calibration drift Watch for calibration needs after windshield, bumper, suspension, camera, or radar work. Documented systems include Active Driving Assistant - KAFAS 3 Forward Camera (2021), Forward Radar (77GHz) (2021), Blind Spot Detection (BSD) - Rear Side Radar (2021), and Active Driving Assistant - KAFAS 3 Forward Camera (2022). Year-marked systems apply only to the shown range.
SRS crash-data and warning light SRS service can involve Advanced Crash Safety Module (ACSM) (2021-2024), Advanced Crash Safety Module (ACSM) (2021-2025), and Advanced Crash Safety Module (ACSM) (2025). 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 BMW 4 Series (2021-2026) modules?

Yes. Core Auto Logic supports generation-scoped module programming for the BMW 4 Series (2021-2026). 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 BMW 4 Series (2021-2026)?

The BMW 4 Series (2021-2026) generation currently shows 79 core module records across ECU/PCM, BCM, TCU/TCM, ABS/EBCM, and SRS groups. SRS modules include Advanced Crash Safety Module (ACSM) (2021-2024), Advanced Crash Safety Module (ACSM) (2021-2025), and Advanced Crash Safety Module (ACSM) (2025). Part numbers and module variants must be confirmed for your exact year/VIN. Reference part number: 61-31-5-A66-155 (2021-2024) - confirm for your exact year/VIN.

Does BMW 4 Series (2021-2026) need ADAS calibration after glass or collision work?

The merged generation data documents 11 ADAS systems, including Active Driving Assistant - KAFAS 3 Forward Camera (2021), Forward Radar (77GHz) (2021), Blind Spot Detection (BSD) - Rear Side Radar (2021), Active Driving Assistant - KAFAS 3 Forward Camera (2022), and Forward Radar (77GHz) (2022). Calibration triggers include Windshield Replacement (2021), Front Bumper Repair or Replacement (2021), Rear Bumper Repair (2021), and BDC Replacement (2021). Procedure type is VIN-specific scan-tool procedure; verify exact requirements by VIN before setup.

Can you reset the airbag module on BMW 4 Series (2021-2026)?

Yes. The generation data includes 57 SRS records, including Advanced Crash Safety Module (ACSM) (2021-2024), Advanced Crash Safety Module (ACSM) (2021-2025), and Advanced Crash Safety Module (ACSM) (2025). 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: 61-31-5-A66-155 (2021-2024) - confirm for your exact year/VIN.

Do all BMW 4 Series (2021-2026) years use the same parts?

No assumption should be made across the full span. The generation page merges rows across 2021-2026; 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.

How long does service take for BMW 4 Series (2021-2026)?

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

Is BMW 4 Series (2021-2026) 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 4 Series generations

F32/F33 2014-2020 G22/G23 2021-2026 You are here

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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.

BMW ISTA 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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