🌍 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.

2016 MERCEDES-BENZ SLK250 R172

1.8L I4 Turbo M271RWDAUTOMATICgasM271turbo
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Dead battery / stuck in Park? Emergency neutral procedure for this SLK250 R172
Every control module on the 2012-2016 Mercedes-Benz SLK250 R172 — 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.
Electric Power Steering Control Unit (EPS)3.5 hr R&Rdealer / factory tool +0.6 hr▸ programming details
📍 Steering column, integrated with steering rack
🔧 Xentry/DAS
⚠️ Direct-steer system; requires steering angle sensor calibration and road test after coding.
Electronic Transmission Control (ETC)2.5 hr R&Rdealer / factory tool +0.6 hr▸ programming details
📍 Transmission housing, driver side
🔧 Xentry/DAS with SCN
⚠️ 7G-TRONIC Plus transmission; requires transmission fluid change during R&R. SCN coding mandatory.
Electronic Stability Program / Anti-lock Brake System (ESP/ABS)1.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Engine compartment, left front near fender
🔧 Xentry/DAS
⚠️ Integrated hydraulic unit; brake bleeding required after replacement. SCN coding required.
Signal Acquisition Module - Rear (SAM-R)1.5 hr R&Rdealer / factory tool +0.7 hr▸ programming details
📍 Trunk, left side behind trim panel
🔧 Xentry/DAS with SCN
⚠️ Controls rear lighting, fuel pump relay, and trunk functions. VIN-locked; SCN coding mandatory.
Climate Control Module (CCM)1.5 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Dashboard, center behind climate control panel
🔧 Xentry/DAS or Autel
⚠️ Thermatic automatic climate control; basic adaptations possible with aftermarket tools.
Electronic Ignition Switch (EIS)1.5 hr R&Rdealer / factory tool +1.2 hr▸ programming details
📍 Steering column, behind ignition slot
🔧 Xentry/DAS with SCN
⚠️ Critical security component; requires SCN coding, key programming, and synchronization with ME and cluster. All keys must be present.
Motor Electronics (ME)1.2 hr R&Rdealer / factory tool +0.8 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.
Audio Gateway / COMAND (AGW/COMAND)1.2 hr R&Rdealer / factory tool +0.4 hr▸ programming details
📍 Dashboard, center stack behind head unit
🔧 Xentry/DAS
⚠️ COMAND system optional; base Audio 20 on lower trims. Coding required for feature activation.
Instrument Cluster (IC)1.0 hr R&Rdealer / factory tool +0.6 hr▸ programming details
📍 Dashboard, behind instrument panel
🔧 Xentry/DAS with SCN
⚠️ VIN-locked; mileage programming requires dealer authorization. Part of security triangle with ME and EIS.
Door Control Module (DCM)1.0 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Inside each door, behind door panel
🔧 Xentry/DAS or Autel
⚠️ Controls windows, mirrors, locks per door. Window normalization required after replacement. Per door.
Central Gateway (CGW)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Dashboard, left side near SAM-F
🔧 Xentry/DAS with SCN
⚠️ Manages CAN bus communication; VIN-locked. Replacement requires extensive network reconfiguration.
Convertible Top Control Module (CTCM)1.0 hr R&Raftermarket tool +0.4 hr▸ programming details
📍 Trunk, right side near convertible top hydraulic pump
🔧 Xentry/DAS or Autel
⚠️ Vario-roof retractable hardtop; requires top position calibration after replacement.
Pre-Safe Control Unit (PSM)1.0 hr R&Rdealer / factory tool +0.4 hr▸ programming details
📍 Center tunnel, beneath center console
🔧 Xentry/DAS
⚠️ Optional Pre-Safe system; integrates with SRS and ESP. Requires system verification after coding.
Supplemental Restraint System Control Unit (SRS)0.8 hr R&Rdealer / factory tool +0.4 hr▸ programming details
📍 Center console, beneath center armrest
🔧 Xentry/DAS
⚠️ VIN-locked; requires crash data clearing and component verification after coding.
Adaptive Damping System Control Unit (ADS)0.8 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Trunk, right side near shock tower
🔧 Xentry/DAS or Autel
⚠️ Optional Dynamic Handling Package; requires ride height calibration after replacement.
Tele Aid Module (TAM)0.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Trunk, left side near SAM-R
🔧 Xentry/DAS
⚠️ Optional equipment; requires subscription activation and network registration after coding.
Parktronic Control Unit (PTS)0.7 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Trunk, center behind rear bumper
🔧 Xentry/DAS or Autel
⚠️ Optional parking assist; sensor calibration required after replacement.
Seat Control Module (SCM)0.6 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Under driver and passenger seats
🔧 Xentry/DAS or Autel
⚠️ Controls power seat, heating, and memory functions. Basic adaptation sufficient. Per seat.
Bi-Xenon Control Unit (XCU)0.5 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Each headlight assembly, behind headlight
🔧 Xentry/DAS or Autel
⚠️ Optional Bi-Xenon headlights; adaptive headlight leveling calibration required. Per side.
Fuel Pump Control Module (FPCM)no coding
📍 Trunk, left side integrated with SAM-R
⚠️ Function integrated into SAM-R; no separate module on R172 platform.
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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