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🌍 International coverage, work in progress. This European-market vehicle is part of our hand-curated international catalog. We are filling in labor times, torque specs and fluids as fast as we can verify them, so some numbers may be missing or marked estimated for now. Do you work on these vehicles in the EU, Russia, or the JDM scene? Help us get it right: send real shop times or corrections to [email protected], or request the data you need and it joins the verification queue.

2007–2009 MERCEDES-BENZ C-CLASS

2.1L I4 CDI•RWD•diesel•OM646•turbo
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Control Modules — 2007–2009 Mercedes-Benz C-Class

Every control module on the 2008-2014 Mercedes-Benz C-Class — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Electronic Transmission Control (ETC)2.5 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Transmission bell housing or valve body (722.9/NAG2)
🔧 Xentry/DAS with SCN
⚠️ Requires transmission oil change, adaptation, and SCN coding. 7G-Tronic variants require valve body removal.
Climate Control Module (CCM)1.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Dashboard, center stack behind HVAC controls
🔧 Xentry/DAS
⚠️ Requires variant coding for dual-zone vs single-zone. Not always VIN-locked but dealer tool recommended.
Electronic Stability Program / Anti-lock Brake System (ESP/ABS)1.5 hr R&Rdealer / factory tool +0.6 hr▸ programming details
📍 Engine bay, driver side near brake master cylinder
🔧 Xentry/DAS with SCN
⚠️ Requires brake bleeding after replacement. VIN-locked, SCN coding mandatory.
Central Gateway (CGW)1.5 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Dashboard, center console area or driver footwell
🔧 Xentry/DAS with SCN
⚠️ CAN bus hub. VIN-locked, requires SCN coding. Replacement affects all module communication.
Electronic Ignition Switch (EIS)1.5 hr R&Rdealer / factory tool +1.5 hr▸ programming details
📍 Steering column, behind ignition lock cylinder
🔧 Xentry/DAS with SCN + IR key sync
⚠️ Critical security component. Requires SCN coding, ECM/cluster pairing, and all keys present for synchronization. Aftermarket solutions unreliable.
Audio Gateway / COMAND (AGW/COMAND)1.5 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Dashboard center stack or trunk (COMAND head unit in trunk on some models)
🔧 Xentry/DAS or Autel
⚠️ Audio Gateway in dash, COMAND controller in trunk. Coding for vehicle options, but not VIN-locked. Aftermarket tools can adapt.
Signal Acquisition Module - Rear (SAM-R)1.2 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Trunk, driver side behind trim panel
🔧 Xentry/DAS with SCN
⚠️ Controls rear lighting, fuel pump relay, trunk functions. VIN-locked, SCN coding required.
Motor Electronics (ME)1.2 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Engine bay, driver side firewall or top of engine
🔧 Xentry/DAS with SCN
⚠️ VIN-locked, requires SCN coding and EIS pairing. C63 AMG uses different ME variant with extended labor.
Airmatic / Adaptive Damping System (ADS/Airmatic)1.2 hr R&Rdealer / factory tool +0.6 hr▸ programming details
📍 Trunk, driver side or under vehicle near front axle
🔧 Xentry/DAS
⚠️ Optional equipment. Requires ride height calibration and variant coding. C-Class rarely equipped with Airmatic (ADS more common).
Instrument Cluster (IC)1.0 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Dashboard, behind instrument panel
🔧 Xentry/DAS with SCN
⚠️ VIN-locked, mileage stored. Requires SCN coding and EIS synchronization. Mileage transfer requires dealer authorization.
Door Control Module (DCM)1.0 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Inside door panel, each door (typically front doors only)
🔧 Xentry/DAS or Autel
⚠️ Controls windows, mirrors, locks per door. Requires window initialization. Not VIN-locked.
Supplemental Restraint System Control Unit (SRS)0.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Center console, under front seats, or behind center trim
🔧 Xentry/DAS with SCN
⚠️ VIN-locked. Requires crash data clearing and occupant classification calibration.
Pre-Safe Control Unit (PSM)0.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Under front seats or center console
🔧 Xentry/DAS
⚠️ Optional. Controls pre-collision seat belt tensioners and seat positioning. Requires calibration.
Parktronic Control Unit (PTS)0.8 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Trunk, behind trim panel or under rear bumper
🔧 Xentry/DAS or Autel
⚠️ Requires sensor calibration. Not VIN-locked, aftermarket tools can adapt.
Tele Aid Module (TAM)0.8 hr R&Rdealer / factory tool +0.5 hr
📍 Trunk, driver side or under rear seat
🔧 Xentry/DAS
⚠️ Requires subscription activation and VIN coding. 3G sunset may affect 2008-2012 models.
Bi-Xenon Control Unit (XCU)0.6 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Behind headlight assembly, each side
🔧 Xentry/DAS or Autel
⚠️ Self-leveling calibration required. Not VIN-locked but requires headlight range adaptation.
Seat Control Module (SCM)0.6 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Under front seats, driver and passenger
🔧 Xentry/DAS or Autel
⚠️ Optional on base models. Memory seat variants require adaptation. Not VIN-locked.
Fuel Pump Control Module (FPCM)0.5 hr R&Rno coding
📍 Trunk, integrated with SAM-R or separate near fuel tank
⚠️ Often integrated into SAM-R relay board. If separate, typically no coding required.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.
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