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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.

2005–2007 MERCEDES-BENZ C-CLASS

3.0L V6 CDI•RWD•diesel•OM642•turbo
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Control Modules — 2005–2007 Mercedes-Benz C-Class

Every control module on the 2001-2007 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)3.5 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Transmission valve body (internal) or passenger side firewall
🔧 Star Diagnosis DAS/Xentry
⚠️ 722.6 5-speed or 722.9 7-speed (7G-Tronic from 2004+); internal TCM requires transmission pan removal; adaptation required
Climate Control Module (CCM)2.0 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Behind center dashboard HVAC controls
🔧 Star Diagnosis or Autel
⚠️ Automatic climate control standard; manual on base models; adaptation for actuator positions
Electronic Stability Program / Anti-lock Brake System (ESP/ABS)1.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Engine bay, driver side near brake master cylinder or under driver floor
🔧 Star Diagnosis DAS/Xentry
⚠️ ESP standard all years; Sensotronic Brake Control (SBC) on some 2003-2005 models requires special bleeding procedure and frequent recalls
Motor Electronics (ME)1.5 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Engine bay, driver side firewall or under air intake
🔧 Star Diagnosis DAS/Xentry
⚠️ ME 2.7/2.8 systems; VIN-locked; part of EIS security triangle with cluster and EIS; SCN coding mandatory
Central Gateway (CGW)1.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Dashboard, center behind radio or in footwell
🔧 Star Diagnosis DAS/Xentry
⚠️ CAN bus gateway; not present on all early W203; added mid-cycle for network management
Electronic Ignition Switch (EIS)1.5 hr R&Rdealer / factory tool +1.5 hr▸ programming details
📍 Steering column, integrated with ignition lock
🔧 Star Diagnosis DAS/Xentry
⚠️ Critical security component; VIN-locked to ME and cluster; key programming requires dealer tool; common failure point causing no-start
Supplemental Restraint System Control Unit (SRS)1.2 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Center console under shifter or behind center dashboard
🔧 Star Diagnosis DAS/Xentry
⚠️ Battery disconnect required; wait 90 seconds; crash data stored; may require replacement after airbag deployment
Audio Gateway / COMAND (AGW/COMAND)1.2 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Center dashboard or trunk-mounted amplifier
🔧 Star Diagnosis or Autel
⚠️ COMAND navigation optional; Audio Gateway on base models; fiber optic MOST bus; anti-theft code required
Instrument Cluster (IC)1.0 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Dashboard behind instrument panel
🔧 Star Diagnosis DAS/Xentry
⚠️ VIN and mileage programming required; part of EIS security triangle; pixel failure common on early models
Door Control Module (DCM)1.0 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Inside door panel, lower section
🔧 Star Diagnosis or Autel
⚠️ One per door on models with advanced features; controls windows, mirrors, locks; not all W203 have separate door modules
Convertible Top Control Module (CTCM)1.0 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Trunk area, near convertible top hydraulic pump
🔧 Star Diagnosis or Autel
⚠️ C-Class Cabriolet (A209) only; not present on sedan/coupe; requires roof calibration
Airmatic / Adaptive Damping System (ADS/Airmatic)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Trunk area, driver side or under vehicle near air compressor
🔧 Star Diagnosis DAS/Xentry
⚠️ Optional air suspension (Airmatic) or adaptive damping; calibration required after replacement
Signal Acquisition Module - Rear (SAM-R)0.8 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Trunk area, driver side behind trim panel
🔧 Star Diagnosis DAS/Xentry
⚠️ Controls rear lighting, fuel pump relay, trunk functions; VIN coding required; water intrusion common
Bi-Xenon Control Unit (XCU)0.8 hr R&Rno coding
📍 Behind headlight assembly, one per side
⚠️ Optional Bi-Xenon headlights; ballast and control unit integrated; adaptive headlight leveling
Tele Aid Module (TAM)0.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Trunk area, driver side or under rear seat
🔧 Star Diagnosis DAS/Xentry
⚠️ Optional equipment; cellular network (analog/2G) now obsolete; subscription required when active
Parktronic Control Unit (PTS)0.6 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Trunk area, behind rear bumper or under rear seat
🔧 Star Diagnosis or Autel
⚠️ Optional parking sensors; sensor calibration may be needed
Fuel Pump Control Module (FPCM)0.5 hr R&Rno coding
📍 Trunk area, driver side near SAM-R or integrated in SAM-R
⚠️ Often integrated into SAM-R as relay; separate module on some models
Seat Control Module (SCM)0.5 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Under driver or passenger seat
🔧 Star Diagnosis or Autel
⚠️ Power seats with memory; one module per seat; not present on manual seats
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.
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