🌍 International coverage, work in progress. This Russian-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.
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2010 MERCEDES-BENZ S350 BLUETEC W221

3.0L V6 Diesel OM642•RWD•AUTOMATIC•diesel•OM642•turbo
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Every control module on the 2010-2013 Mercedes-Benz S350 BlueTEC W221 — 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)4.5 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Transmission valve body, inside transmission pan
🔧 Xentry/DAS with SCN
⚠️ Requires transmission fluid/filter service during R&R. SCN coding mandatory.
Climate Control Module (CCM)3.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Behind center dashboard, below COMAND
🔧 Xentry/DAS
⚠️ Requires HVAC system calibration after replacement.
COMAND Control Unit (COMAND)2.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Behind center dashboard, above transmission tunnel
🔧 Xentry/DAS
⚠️ Navigation DVD drive often fails. Coding required for vehicle-specific settings.
Central Gateway (CGW)2.0 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Behind dashboard, left of steering column
🔧 Xentry/DAS with SCN
⚠️ Critical communication hub. SCN coding required. Failure causes multiple system communication errors.
Electronic Ignition Switch (EIS)2.0 hr R&Rdealer / factory tool +1.5 hr▸ programming details
📍 Steering column, behind ignition lock
🔧 Xentry/DAS with SCN
⚠️ Critical security component. Requires SCN coding, key programming, and pairing to ECM/cluster. Dealer-only operation.
Electronic Stability Program Control Unit (ESP)1.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Engine compartment, left front near fender
🔧 Xentry/DAS
⚠️ Brake bleeding required after replacement. SCN coding needed.
Instrument Cluster (IC)1.5 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Dashboard, behind instrument panel
🔧 Xentry/DAS with SCN
⚠️ VIN-locked with mileage stored. Requires SCN coding and mileage programming. Part of security triangle.
Door Control Module Passenger (DCM-P)1.5 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Passenger door, inside door panel
🔧 Xentry/DAS or Autel
DISTRONIC Control Unit (DCU)1.5 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Behind front grille, center
🔧 Xentry/DAS
⚠️ Adaptive cruise control radar. Requires alignment and calibration after replacement.
Signal Acquisition Module Rear (SAM-R)1.2 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Trunk, right side behind trim panel
🔧 Xentry/DAS with SCN
⚠️ VIN-locked. Controls rear lighting, fuel pump relay, trunk functions. SCN coding mandatory.
Motor Electronics (ME)1.2 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Engine compartment, left side firewall near brake booster
🔧 Xentry/DAS with SCN
⚠️ VIN-locked; requires SCN coding and EIS pairing. Part of security triangle with EIS and cluster.
Supplemental Restraint System Control Unit (SRS)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Center console, under front armrest
🔧 Xentry/DAS with SCN
⚠️ VIN-locked. Crash data stored; requires SCN coding and crash data clear if applicable.
Active Lane Keeping Assist Control Unit (ALKA)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Behind rearview mirror, integrated with camera
🔧 Xentry/DAS
⚠️ Camera calibration required. Optional equipment; not all vehicles equipped.
Airmatic Control Unit (ADS)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Trunk, right side near SAM-R
🔧 Xentry/DAS
⚠️ Controls air suspension. Requires ride height calibration after replacement.
Bi-Xenon Control Unit Passenger (XCU-P)0.8 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Behind passenger headlight assembly
🔧 Xentry/DAS or Autel
Parktronic Control Unit (PTS)0.8 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Trunk, left side behind trim panel
🔧 Xentry/DAS or Autel
⚠️ Sensor calibration required after replacement.
Tele Aid Module (TAM)0.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Trunk, left side behind trim panel
🔧 Xentry/DAS
⚠️ Requires subscription activation. 2G/3G modules may no longer function due to network shutdowns.
Fuel Pump Control Module (FPCM)0.5 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Trunk, right side near SAM-R
🔧 Xentry/DAS or Autel
⚠️ Controls fuel pump relay and pressure. Often integrated with SAM-R functions.
Seat Control Module Passenger (SCM-P)0.5 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Under passenger seat, front rail
🔧 Xentry/DAS or Autel
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.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years.
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