🌍 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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2024 MERCEDES-BENZ CLS53 AMG

3.0L I6 Turbo M256•RWD•AUTOMATIC•gas•M256•turbo
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Every control module on the 2019-2024 Mercedes-Benz CLS53 AMG — 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.
Transmission Control Unit (TCU)2.5 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Transmission bell housing, driver side
🔧 Xentry Diagnostics + SCN online
⚠️ AMG Speedshift TCT 9-speed. Requires transmission fluid drain, VIN-lock and SCN coding mandatory.
Climate Control Unit (CCU)2.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Behind center dash, above transmission tunnel
🔧 Xentry Diagnostics
⚠️ Thermotronic automatic climate control. Dash removal required for access.
Electric Power Steering Control Unit (EPS)1.8 hr R&Rsecurity gateway +0.8 hr▸ programming details
📍 Steering column, below instrument panel
🔧 Xentry Diagnostics + SCN online
⚠️ AMG Dynamic Select steering modes. Steering angle sensor calibration required after coding.
Head Unit / MBUX (HU)1.5 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Center dash, integrated with display
🔧 Xentry Diagnostics + SCN online
⚠️ MBUX infotainment system. Requires online activation and user account transfer.
Electronic Stability Program Control Unit (ESP/ABS)1.5 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Engine bay, left front near fender
🔧 Xentry Diagnostics + SCN online
⚠️ Integrated hydraulic unit. Brake bleed required after replacement. VIN-locked.
Electronic Ignition Switch (EIS)1.5 hr R&Rsecurity gateway +1.5 hr▸ programming details
📍 Steering column, upper shroud
🔧 Xentry Diagnostics + SCN online + Xentry Key Programming
⚠️ Keyless-Go system. Key programming and ECM/TCU pairing mandatory. Requires all keys present.
Motor Electronics / Engine Control Unit (ME/ECU)1.2 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Engine bay, left side firewall near brake master cylinder
🔧 Xentry Diagnostics + SCN online
⚠️ VIN-locked, requires SCN coding and EIS pairing. ISG (Integrated Starter Generator) variant on M256 engine.
Central Gateway Module (CGW)1.2 hr R&Rsecurity gateway +1.5 hr▸ programming details
📍 Left footwell, behind kick panel
🔧 Xentry Diagnostics + SCN online
⚠️ Security gateway enforcing authentication. Replacement requires dealer-level authorization and all module re-coding.
Airmatic / Active Body Control Module (ADS/ABC)1.2 hr R&Rsecurity gateway +0.8 hr▸ programming details
📍 Trunk, right side panel near compressor
🔧 Xentry Diagnostics + SCN online
⚠️ AMG Ride Control+ air suspension. Ride height calibration required after coding.
Rear Signal Acquisition and Actuation Module (SAM-R)1.0 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Trunk, left side panel
🔧 Xentry Diagnostics + SCN online
⚠️ Controls rear lighting, fuel pump relay, trunk functions. VIN-locked.
Camera Control Unit / Surround View (CCU)1.0 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Trunk, center panel above license plate
🔧 Xentry Diagnostics
⚠️ 360-degree camera system. Camera calibration and alignment required after replacement.
Instrument Cluster (IC)1.0 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Instrument panel, behind steering wheel
🔧 Xentry Diagnostics + SCN online
⚠️ 12.3-inch digital cluster. VIN-locked, mileage programming from CGW required.
Restraint Systems Control Unit (SRS)0.8 hr R&Rsecurity gateway +0.8 hr▸ programming details
📍 Center console, beneath center armrest
🔧 Xentry Diagnostics + SCN online
⚠️ VIN-locked. PRE-SAFE system integration. Battery disconnect mandatory.
Battery Management System (BMS)0.8 hr R&Rsecurity gateway +0.8 hr▸ programming details
📍 Trunk, right side near 48V battery
🔧 Xentry Diagnostics + SCN online
⚠️ Manages 48V lithium-ion battery for EQ Boost. Battery registration mandatory after replacement.
Door Control Module (DCM)0.8 hr R&Rdealer / factory tool +0.3 hr▸ programming details
📍 Each door (four modules: FL, FR, RL, RR)
🔧 Xentry Diagnostics
⚠️ Controls windows, mirrors, door locks. Window initialization required after replacement.
Intelligent Light System Control Unit (ILS)0.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Each headlight assembly (left and right modules)
🔧 Xentry Diagnostics
⚠️ Multibeam LED headlights. Adaptive high beam assist. Headlight aim calibration required after replacement.
Exhaust Flap Control Module (EFC)0.8 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Rear undercarriage, near mufflers
🔧 Xentry Diagnostics or Autel
⚠️ AMG Performance Exhaust with variable flaps. Flap position relearn required.
Active Lane Keeping Assist Control Unit (ALKA)0.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Windshield, behind rearview mirror
🔧 Xentry Diagnostics
⚠️ Camera-based lane keeping. Windshield camera calibration required after replacement or windshield work.
Tailgate Control Module (TGM)0.7 hr R&Rdealer / factory tool +0.3 hr▸ programming details
📍 Trunk lid, left side
🔧 Xentry Diagnostics
⚠️ HANDS-FREE ACCESS power trunk. Position relearn required after replacement.
Parktronic Control Unit (PTS)0.7 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Trunk, left side panel
🔧 Xentry Diagnostics
⚠️ Active Parking Assist with PARKTRONIC. Sensor calibration required.
Seat Control Module (SCM)0.6 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Under each front seat (left and right modules)
🔧 Xentry Diagnostics or Autel
⚠️ AMG Performance seats with memory and massage. Seat position relearn required.
Telematics Communication Module (TCM)0.6 hr R&Rsecurity gateway +0.8 hr▸ programming details
📍 Rear parcel shelf, driver side
🔧 Xentry Diagnostics + SCN online
⚠️ Mercedes me connect services. Requires online subscription activation and VIN-lock.
Fuel Pump Control Module (FPCM)0.5 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Trunk, right side panel near fuel tank
🔧 Xentry Diagnostics or Autel
⚠️ Controls dual fuel pumps. Adaptation required for fuel pressure.
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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