🌍 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.

2020 MERCEDES-BENZ E300 W213

2.0L I4 Turbo M274RWDAUTOMATICgasM274turbo
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Dead battery / stuck in Park? Emergency neutral procedure for this E300 W213
Every control module on the 2017-2020 Mercedes-Benz E300 W213 — 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
⚠️ VIN-locked, requires transmission fluid change after replacement. SCN coding mandatory.
4MATIC Control Unit (4M)2.0 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Under vehicle, near transfer case or rear differential
🔧 Xentry Diagnostics + SCN online
⚠️ 4MATIC AWD models only. VIN-locked, requires SCN coding.
Climate Control Unit (CCU)1.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Dashboard, behind center HVAC controls
🔧 Xentry Diagnostics
⚠️ Requires adaptation for flap positions and sensor calibration.
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
⚠️ Requires steering angle sensor calibration after coding. VIN-locked.
Central Gateway Module (CGW)1.5 hr R&Rsecurity gateway +2.0 hr▸ programming details
📍 Dashboard, behind center lower trim panel
🔧 Xentry Diagnostics + SCN online
⚠️ Critical security module. Replacement requires extensive recoding of all networked modules. Dealer-only procedure.
Electronic Stability Program Control Unit (ESP/ABS)1.5 hr R&Rsecurity gateway +0.8 hr▸ programming details
📍 Engine bay, left front near fender
🔧 Xentry Diagnostics + SCN online
⚠️ Requires brake bleeding after replacement. VIN-locked SCN coding required.
Electronic Ignition Switch (EIS)1.5 hr R&Rsecurity gateway +1.5 hr▸ programming details
📍 Steering column, integrated with ignition switch
🔧 Xentry Diagnostics + SCN online
⚠️ Security triangle component (EIS-ECM-Cluster). Key programming required. Dealer-only, extremely difficult aftermarket.
Head Unit / COMAND (HU/COMAND)1.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Dashboard, center stack behind trim
🔧 Xentry Diagnostics
⚠️ Requires coding for vehicle-specific features. Some aftermarket tools can code basic functions.
Airmatic / Active Body Control Module (ABC/ADS)1.5 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Trunk, right side panel or under vehicle near rear axle
🔧 Xentry Diagnostics + SCN online
⚠️ Airmatic-equipped models only. Requires ride height calibration. VIN-locked.
Tailgate Control Module (TGM)1.2 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Trunk lid, integrated with power liftgate mechanism
🔧 Xentry or Autel MaxiSys
⚠️ Power liftgate relearn procedure required. Sedan models may not have this module.
Signal Acquisition and Actuation Module - Rear (SAM-R)1.2 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Trunk, right side panel behind trim
🔧 Xentry Diagnostics + SCN online
⚠️ Controls rear lighting, fuel pump relay. VIN-locked, requires SCN coding.
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 online authorization from Mercedes servers. EIS security triangle pairing mandatory.
Radar Sensor / DISTRONIC Control Unit (RSU)1.2 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Front bumper, center behind grille
🔧 Xentry Diagnostics + SCN online + radar alignment tool
⚠️ Requires precise radar alignment with special tool. DISTRONIC-equipped models only. VIN-locked.
Camera Control Unit / Surround View (CCU)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Trunk, center panel or behind rear bumper
🔧 Xentry Diagnostics
⚠️ Camera calibration required. 360-degree camera models only.
Instrument Cluster (IC)1.0 hr R&Rsecurity gateway +1.0 hr▸ programming details
📍 Dashboard, behind instrument panel
🔧 Xentry Diagnostics + SCN online
⚠️ VIN-locked, mileage programming required. Security triangle component.
Door Control Module (DCM)1.0 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Inside each door (4 modules total)
🔧 Xentry or Autel MaxiSys
⚠️ Window and mirror initialization required after replacement.
Intelligent Light System Control Unit (ILS)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Each headlight assembly (left and right)
🔧 Xentry Diagnostics
⚠️ Requires headlight aim calibration after replacement. LED/Multibeam models only.
Parktronic Control Unit (PTS)0.8 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Trunk, left side panel behind trim
🔧 Xentry or Autel MaxiSys
⚠️ Sensor calibration required after replacement.
Restraint Systems Control Unit (SRS)0.8 hr R&Rsecurity gateway +0.5 hr▸ programming details
📍 Center console, under front armrest
🔧 Xentry Diagnostics + SCN online
⚠️ VIN-locked, crash data must be cleared. Battery disconnect required.
Telematics Communication Module (TCM)0.8 hr R&Rsecurity gateway +0.8 hr▸ programming details
📍 Trunk, left side panel or under rear seat
🔧 Xentry Diagnostics + SCN online
⚠️ Requires Mercedes me connect subscription activation. VIN-locked.
Seat Control Module (SCM)0.6 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Under each front seat (driver and passenger)
🔧 Xentry or Autel MaxiSys
⚠️ Requires adaptation for seat position memory. Most aftermarket tools can handle.
Fuel Pump Control Module (FPCM)0.5 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Trunk, right side panel or integrated with SAM-R
🔧 Xentry or Autel MaxiSys
⚠️ Often integrated with SAM-R; standalone module on some variants.
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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