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2012 Mercedes-Benz C-Class Supported Services

2012 Mercedes-Benz C-Class

ADAS calibration, module programming, and security relearns

Trims: C 300, C 300 4MATIC, AMG C 43, AMG C 63. All include standard ADAS suite.

Technical snapshot
  • Platform W204 (4th Gen, 2008-2014)
  • CAN Architecture HS-CAN (500 kbps) - ISO 15765-4 compliant; OBD2 DLC Pin 6/14
  • Security Mercedes EIS/EZS (Electronic Ignition Switch) + IR transponder or DST+ chip; NEC MCU-based keys; XENTRY Diagnostics for add-key PIN; AKL requires XENTRY + NEC key code + EIS/EZS synchronization

What do you need fixed?

Choose a service to start your quote.

SERVICE SNAPSHOT

Exact-year service summary for 2012 Mercedes Benz C-Class

ADAS coverage

This 2012 Mercedes Benz C-Class page documents 3 ADAS systems, including Rear View Camera (PARKTRONIC), PRE-SAFE® Brake - Forward Camera (Stereo), and PRE-SAFE® Brake - Forward Radar (77GHz).

View ADAS data

Calibration triggers

Documented calibration triggers include ECM/ME Replacement and ABS/ESP Module Replacement. Use the ADAS tab for the full trigger list.

View triggers

Module references

This page indexes 36 module reference records across SRS, ECU, BCM, TCU/TCM, ABS, and IPC categories. VIN-specific fitment and service eligibility require separate review.

View modules

Gateway and security

This page includes 3 gateway, immobilizer, or key-security records for this 2012 Mercedes Benz C-Class.

View security

Core Auto Logic capability

Core Auto Logic supports exact-year diagnostics, ADAS calibration, module programming, and security-access planning for the 2012 Mercedes Benz C-Class using the documented systems and module data on this page.

Choose a section

VIN and build details determine exact service eligibility. A missing record does not mean we cannot help; ask about your vehicle.

YEAR-SPECIFIC NOTES

VIN / Build Split

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.

Vehicle specifications & technical reference
OVERVIEW
Platform
W204 (4th Gen, 2008-2014)
Production
2008-present
Trim Levels
Trims: C 300, C 300 4MATIC, AMG C 43, AMG C 63. All include standard ADAS suite.
Drivetrain
RWD / AWD
CAN Speed
HS-CAN (500 kbps) - ISO 15765-4 compliant; OBD2 DLC Pin 6/14
EXACT-YEAR DIFFERENTIATORS

What changes on this exact year

Feature availability

Platform: W204 (4th Gen, 2008-2014) - Confirmed

Driver-assist suite

No full ADAS suite - pre-Driving Assistance Package generation. Optional PRE-SAFE, DISTRONIC PLUS on upper trims/models.

VIN and build split

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.

Infotainment context

Mercedes-Benz COMAND Online (NTG 4.5/4.7); 7" display; Bluetooth; USB; internet-capable

Network and access

CAN: HS-CAN (500 kbps) - ISO 15765-4 compliant; OBD2 DLC Pin 6/14

TOOL ACCESS MATRIX

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.

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

Choose a section to view data

VEHICLE REFERENCES

Module and system reference catalog

Reference entries for the 2012 Mercedes-Benz C-Class across possible configurations. Counts describe catalog entries. Exact fitment, installed equipment and service eligibility require review.

ADAS Calibration
3 reference entries

Equipped-system references and calibration triggers. Requirements depend on the vehicle, equipment and repair scope.

Open ADAS tab
Engine / ECU Modules
1 reference entry

Powertrain module references and setup information. Confirm the exact hardware and service eligibility.

Open Modules tab
BCM / Body Modules
2 reference entries

Body control module references, variant restrictions and setup information. Support requires review of the exact unit.

Open Modules tab
TCU / Transmission
4 reference entries

Transmission controller references and setup information. Programming, reset and cloning eligibility require review.

Open Modules tab
SRS / Airbag Modules
20 reference entries

Airbag module references and manufacturer-required procedures. Reset or replacement eligibility requires diagnosis and review.

Open Modules tab
ABS / Brake Module
3 reference entries

Brake control assembly references and OEM setup information. Procedures vary by vehicle and equipment.

Open Modules tab
IPC, SAS & Other Modules
3 reference entries

Instrument cluster, steering angle sensor and other module references. Confirm the required procedure and support for the exact unit.

Open Modules tab
Connectivity & Accessories
3 reference entries

Infotainment radio, surround view, remote start, trailer brake controller and other equipped systems.

Open Modules tab
Recalibration Triggers
2 reference entries

Repair-event references. Confirm applicable calibration requirements from current OEM information for the exact vehicle.

Open ADAS tab

Need a module that is not listed? Request a review of its identity, service requirements and available options.

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Feature availability 1

Platform: W204 (4th Gen, 2008-2014)

Confirmed

Verify platform code matches when cross-referencing part numbers across model years.

WHAT WE RESOLVE

Common issues on this vehicle

Service considerations for the Mercedes Benz C-Class: Rear View Camera (PARKTRONIC), PRE-SAFE® Brake - Forward Camera (Stereo), and PRE-SAFE® Brake - Forward Radar (77GHz) recalibration after windshield/bumper/suspension/CCM service. Replacement ECU/PCM, BCM, TCU or accessory modules may require programming or configuration. Follow current manufacturer instructions; service eligibility requires review of the exact VIN, module and fault.

ADAS CALIBRATION MATRIX

ADAS systems on this vehicle

No full ADAS suite - pre-Driving Assistance Package generation. Optional PRE-SAFE, DISTRONIC PLUS on upper trims/models.

Scroll for part numbers and Details
SystemTypeCategoryCal. TypeSupportedPart #Actions
Rear View Camera (PARKTRONIC)CameraADASStatic YES-
PRE-SAFE® Brake - Forward Camera (Stereo)CameraADASStatic YES-
PRE-SAFE® Brake - Forward Radar (77GHz)RadarADASStatic + Dynamic YES-
WHEN IS CALIBRATION REQUIRED?

Triggers for ADAS recalibration

ECM/ME Replacement

XENTRY SCN coding mandatory. VIN tie.

ABS/ESP Module Replacement

XENTRY variant coding + ESP reset function.

SRS - Airbag Modules

SRS Control Unit 12 records
0 285 010 229 Under center console
Part number
0 285 010 229
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95320
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
0 285 011 400 Under center console
Part number
0 285 011 400
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95320
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
0285002894 Under center console
Part number
0285002894
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95640
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A204 820 22 85 Under center console
Part number
A204 820 22 85
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95640
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A204 820 22 85 (5WK44004) Under center console
Part number
A204 820 22 85 (5WK44004)
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95640
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A204 870 68 26 Under center console
Part number
A204 870 68 26
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95640
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A204 870 68 26 (5WK44004) Under center console
Part number
A204 870 68 26 (5WK44004)
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95640
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A204 870 94 26 Under center console
Part number
A204 870 94 26
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95640
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A204 870 94 26 (5WK44318) Under center console
Part number
A204 870 94 26 (5WK44318)
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95640
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A204 901 27 04 Under center console
Part number
A204 901 27 04
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95640
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A204 901 27 04 (5WK44739) Under center console
Part number
A204 901 27 04 (5WK44739)
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95640
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
A204 901 28 04 Under center console
Part number
A204 901 28 04
Location
Under center console
Manufacturer
Bosch
Chip / MCU
95640
Notes
Requires Xentry/DAS or compatible J2534 tool. SCN coding required online. Battery disconnect and 60-second wait before removal. SRS variant coding required.
SRS Control Unit (variant) 8 records
2044315712
Part number
2044315712
Chip / MCU
95320
2044315512
Part number
2044315512
Chip / MCU
95320
2044310812
Part number
2044310812
Chip / MCU
95320
2044314512
Part number
2044314512
Chip / MCU
95320
2044310512
Part number
2044310512
Chip / MCU
95320
2044311212
Part number
2044311212
Chip / MCU
95320
2044309512
Part number
2044309512
Chip / MCU
95320
2044309712
Part number
2044309712
Chip / MCU
95320

ECU - Engine Computer

ECM/ME - 1.8L M271 I4 / 2.5L M272 V6 / 3.0L M272 V6 / 6.2L M156 V8 (year-dep)
Notes
Mercedes C-Class ME. XENTRY SCN coding required.

BCM - Body Electronics

SAM (Signal Acquisition Module) - Front
Notes
Mercedes Front SAM. XENTRY coding after replacement.
SAM (Signal Acquisition Module) - Rear
Notes
Mercedes Rear SAM. XENTRY coding.

TCM - Transmission Computer

TCU - 722.9 7G-TRONIC PLUS 7-Speed Auto A2125405
Part number
A2125405
Protocol / method
J2534
Coding required
Yes
Cloning supported
Yes
Chip / MCU
Infineon TC1797
Notes
Requires SCN coding via Xentry/DAS. ATF spec MB 236.14. Adaptive values reset after programming. Basic setting procedure mandatory.
TCU - 722.6 5G-TRONIC 5-Speed Auto A2105405
Part number
A2105405
Protocol / method
Bench
Coding required
Yes
Cloning supported
No
Chip / MCU
Bosch TC1766
Notes
ISN synchronization required with EIS/ECU. Clone protection active. Repair only via bench programming. ATF spec MB 236.10.
TCU - 6-Speed Manual Transmission Control A2044608
Part number
A2044608
Protocol / method
Virgin Flash
Coding required
No
Cloning supported
No
Chip / MCU
Continental MPC5xxx
Notes
Simple clutch position sensor control module. No programming typically required for base manual variants.
TCU - 6-Speed Manual Transmission Control A2044608
Part number
A2044608
Protocol / method
Virgin
Coding required
No
Cloning supported
No
Chip / MCU
Continental MPC5xxx
Notes
Simple clutch position sensor control module. No programming typically required for base manual variants.

ABS - Brake Modules

ABS/ESP Control Unit (N47-5)
Notes
Mercedes ESP. XENTRY actuator test + variant coding.
Wheel Speed Sensor - Front (each)
Notes
Active sensor.
Wheel Speed Sensor - Rear (each)
Notes
Active sensor.

Instrument Cluster & Steering Angle Modules

Instrument Panel Cluster (IPC) A 204 900 62 08
Part number
A 204 900 62 08
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.
Steering Angle Sensor (SAS)
Coding required
Yes
Notes
INTEGRATED (clock spring / steering column module
Steering Angle Sensor (SAS)
Coding required
Yes
Notes
cross-year extension)

Connectivity & Accessories

MBUX Central Display (11.9 inch portrait) A206-900-26-01
Part number
A206-900-26-01
Notes
module coding after replacement.
MBUX Instrument Display (12.3 inch digital) A206-900-56-01
Part number
A206-900-56-01
Notes
our diagnostic software module coding required. Mileage synchronization between cluster and EIS. Dealer authorization for mileage write.
Digital Key Module (NFC) A206-905-90-01
Part number
A206-905-90-01
Notes
Enables smartphone NFC digital key via MB ME app. module coding and MB account linking required. Physical smart key remains primary - digital key is supplemental.
ARCHITECTURE & CONNECTIVITY

Architecture & Connectivity

Body Construction
Steel unibody with extensive aluminum and high-strength steel mix
OBD Protocol
ISO 15765-4 CAN (500 kbps)
CAN Architecture
HS-CAN (500 kbps) - ISO 15765-4 compliant; OBD2 DLC Pin 6/14
Infotainment
Mercedes-Benz COMAND Online (NTG 4.5/4.7); 7" display; Bluetooth; USB; internet-capable
OTA Capable
No
ECU/TCM Unlocking
Contact us
ECU/TCM Flashing
Contact us
FREQUENTLY ASKED QUESTIONS

FAQ

How much does ADAS calibration cost for a 2012 Mercedes Benz C-Class?

ADAS calibration pricing for a 2012 Mercedes Benz C-Class depends on which of its 3 documented systems need work after a repair. This vehicle is documented with Rear View Camera (PARKTRONIC), PRE-SAFE® Brake - Forward Camera (Stereo), and PRE-SAFE® Brake - Forward Radar (77GHz). We provide a fixed quote after confirming the operations performed - send the VIN, the repair scope (windshield R&R, bumper work, alignment, collision), and any DTCs so the quote response can include a real number.

Can you reset the airbag light on a 2012 Mercedes Benz C-Class?

An airbag warning light on a 2012 Mercedes Benz C-Class requires diagnosis before the appropriate repair can be determined. The procedure depends on the VIN, fault codes, collision history and installed components. Manufacturer instructions may require replacement of the control module or other components; clearing crash data alone does not establish that the restraint system is safe or fully operational. Send the VIN, current module part number and fault information so we can review service eligibility and confirm the next steps before quoting or shipping a module.

What is needed after replacing the windshield on a 2012 Mercedes Benz C-Class?

After windshield replacement on a 2012 Mercedes Benz C-Class, Rear View Camera (PARKTRONIC), PRE-SAFE® Brake - Forward Camera (Stereo), and PRE-SAFE® Brake - Forward Radar (77GHz) rely on the forward-facing camera and require recalibration before the systems return to operation. We perform the calibration on-site in the DFW Metroplex with OE target fixtures. Mail-in module service is available nationwide for eligible module work.

How long does a 2012 Mercedes Benz C-Class module service take?

Most 2012 Mercedes Benz C-Class onsite jobs are typically scheduled within 24-48 hours once vehicle readiness, access, and route timing are confirmed. Mobile module work and ADAS calibration are scheduled in the DFW service area after quote review. Mail-in module service is available nationwide.

Do you cover the 2012 Mercedes Benz C-Class on-site, or is this mail-in only?

We run a mobile unit across the DFW Metroplex for on-vehicle work (ADAS calibration, post-repair recoding, and supported module work). Mail-in module service is available nationwide. Quote the work and we will confirm the active service path for the 2012 Mercedes Benz C-Class. Do not ship a module unless support confirms next steps.

What kind of warranty do you offer on 2012 Mercedes Benz C-Class programming?

Every programming, cloning, and calibration job on the 2012 Mercedes Benz C-Class is backed by a workmanship warranty covering the scope of work we performed: 1-year unlimited on all flashes, clones, and ADAS calibrations. If a module we programmed or a calibration we performed fails to function as expected, return it and we restore it at no charge. The warranty covers our work; it does not cover unrelated mechanical or electrical failure of the module itself.

Which modules on a 2012 Mercedes Benz C-Class can you actually service?

Service options for a 2012 Mercedes Benz C-Class require review of the VIN, exact module part number, vehicle equipment and faults. The catalog contains the following reference entries across possible configurations:

  • 1 engine control (ECU/PCM)
  • 3 transmission control (TCU/TCM)
  • 2 body control (BCM and related)
  • 3 ABS / brake control (EBCM)
  • 1 immobilizer / security
  • 2 key & fob
  • 1 instrument cluster (IPC)
  • 2 steering angle sensor (SAS)
  • 3 ADAS module

Programming, cloning, repair and replacement eligibility are checked separately for each module. Send the VIN, current part number, fault codes and operations performed so we can confirm support and pricing.

Additional Module Part Numbers

Additional part references for the 2012 Mercedes-Benz C-Class covering ADAS, ECU/PCM, BCM, TCU/TCM, SRS, ABS/EBCM, instrument cluster (IPC), gateway, and steering angle sensor modules when available. These entries support module identification; each reference requires VIN-specific selection and service review.

ADAS Module Part Numbers
A 204 900 34 02
ECU / PCM Part Numbers
A 276 153 14 79
BCM / Body Module Part Numbers
A 204 900 72 00
TCU / TCM Part Numbers
A2125405, A2105405, A2044608
SRS / Airbag Module Part Numbers
0 285 010 229, 0 285 011 400, 0285002894, A204 820 22 85, A204 820 22 85 (5WK44004), A204 870 68 26, A204 870 68 26 (5WK44004), A204 870 94 26, A204 870 94 26 (5WK44318), A204 901 27 04, A204 901 27 04 (5WK44739), A204 901 28 04
ABS / EBCM Part Numbers
A 204 545 61 32
Instrument Cluster (IPC) Part Numbers
A 204 900 62 08
Transmission Control Module (TCM) Part Numbers
A2125405, A2105405, A2044608

Part references do not establish fitment or programming eligibility. Verify VIN-specific part selection, supersession and service requirements before ordering or scheduling. Ask Core Auto Logic to review the vehicle and module for available DFW mobile service options.

Different trim or build?

Send your VIN and we'll confirm exact module support and pricing in the quote response.

Hit a security wall? We've got the keys.

1-year unlimited warranty on every flash and calibration.

(945) 382-4065 Get a Quote

Matching catalog references

Other vehicles with matching part references

These pages list a matching part reference in the same module category. This does not confirm interchangeability. Verify the complete part number, suffix, VIN and build before selecting a replacement.

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