Every control module on the 2022-2026 Mercedes-Benz EQE — 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.
Battery Management System (BMS) 4.5 hr R&R security gateway +1.5 hr ▸ programming details
📍 Underbody, integrated with high-voltage battery pack
🔧 Xentry Diagnostics + Vediamo/Monaco with MBD account
⚠️ Requires high-voltage isolation, battery pack partial disassembly; critical safety module with extensive online authorization.
Motor Electronics / Power Electronics Control Unit (ME / PECU) 2.5 hr R&R security gateway +1.2 hr ▸ programming details
📍 Front trunk (frunk), mounted on electric drive unit bulkhead
🔧 Xentry Diagnostics + Vediamo/Monaco with MBD account
⚠️ Controls electric motor and power electronics; VIN-locked, requires online SCN coding and high-voltage system lockout procedure.
Electric Power Steering Control Unit (EPS) 2.0 hr R&R security gateway +0.8 hr ▸ programming details
📍 Steering column, integrated with steering gear
🔧 Xentry Diagnostics + Vediamo/Monaco
⚠️ Requires steering angle sensor calibration and road test after replacement.
Digital Chassis Control Unit (DCC) 2.0 hr R&R security gateway +1.0 hr ▸ programming details
📍 Underbody, center tunnel near battery pack
🔧 Xentry Diagnostics + Vediamo/Monaco
⚠️ Integrates suspension, steering, and brake-by-wire systems; multiple calibrations required after replacement.
MBUX Head Unit (HU / MBUX) 2.0 hr R&R dealer / factory tool +1.0 hr ▸ programming details
📍 Dashboard, center stack (12.8-inch or optional 17.7-inch Hyperscreen)
🔧 Xentry Diagnostics + Vediamo/Monaco
⚠️ Hyperscreen variant requires additional trim removal; user profile and navigation data transfer recommended.
Central Gateway Module (CGW) 1.8 hr R&R security gateway +1.0 hr ▸ programming details
📍 Dashboard, behind center console lower trim
🔧 Xentry Diagnostics + Vediamo/Monaco with MBD account
⚠️ Security gateway enforcing authentication; replacement requires dealer-level access and online authorization.
Airmatic / Active Body Control Module (ABC / ADS) 1.8 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Front trunk (frunk), right side near suspension strut tower
🔧 Xentry Diagnostics + Vediamo/Monaco
⚠️ Air suspension with adaptive damping; ride height calibration and system bleed required after replacement.
Electronic Stability Program Control Unit (ESP / ABS) 1.5 hr R&R security gateway +0.8 hr ▸ programming details
📍 Front left wheel well, mounted on hydraulic unit
🔧 Xentry Diagnostics + Vediamo/Monaco
⚠️ Includes brake-by-wire integration for regenerative braking; requires bleeding and calibration after replacement.
Rear Signal Acquisition and Actuation Module (SAM-R) 1.5 hr R&R security gateway +1.0 hr ▸ programming details
📍 Trunk, left side panel
🔧 Xentry Diagnostics + Vediamo/Monaco
⚠️ Controls rear lighting, trunk functions, and rear comfort features; VIN-locked.
Camera Control Unit / Surround View (CCU) 1.5 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Trunk, right side panel near rear SAM
🔧 Xentry Diagnostics + Vediamo/Monaco
⚠️ Processes 360-degree camera system; camera calibration and alignment required after replacement.
Climate Control Unit (CCU) 1.5 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Dashboard, behind center HVAC controls
🔧 Xentry Diagnostics
⚠️ Controls heat pump system for cabin and battery thermal management.
Electronic Ignition Switch (EIS) 1.5 hr R&R security gateway +1.5 hr ▸ programming details
📍 Dashboard, right side of steering column
🔧 Xentry Diagnostics + Vediamo/Monaco with MBD account
⚠️ Key programming and security triangle pairing with CGW and IC; requires all keys present for coding.
Restraint Systems Control Unit (SRS) 1.2 hr R&R security gateway +0.7 hr ▸ programming details
📍 Center console, beneath front seats
🔧 Xentry Diagnostics + Vediamo/Monaco
⚠️ VIN-locked; requires crash data clearing and occupant classification system calibration.
Intelligent Light System Control Unit (ILS) 1.2 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Each headlight assembly (left and right modules)
🔧 Xentry Diagnostics
⚠️ Digital Light with DMD technology; requires headlight aim calibration after replacement.
Tailgate Control Module (TGM) 1.2 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Trunk lid, integrated with latch assembly
🔧 Xentry Diagnostics
⚠️ Controls power trunk operation and hands-free access; position learning required after replacement.
Radar Sensor / DISTRONIC Control Unit (RSU) 1.2 hr R&R security gateway +1.0 hr ▸ programming details
📍 Front bumper, center behind grille (long-range); corners (short-range)
🔧 Xentry Diagnostics + Vediamo/Monaco
⚠️ Adaptive cruise control and collision prevention; requires radar alignment with special target after replacement.
Instrument Cluster (IC) 1.0 hr R&R security gateway +0.8 hr ▸ programming details
📍 Dashboard, behind steering wheel
🔧 Xentry Diagnostics + Vediamo/Monaco
⚠️ 12.3-inch digital display; VIN-locked, requires mileage programming and online authorization.
Parktronic Control Unit (PTS) 1.0 hr R&R dealer / factory tool +0.4 hr ▸ programming details
📍 Rear bumper, behind trim panel
🔧 Xentry Diagnostics
⚠️ Ultrasonic parking sensors; sensor calibration required after replacement.
Door Control Module (DCM) 1.0 hr R&R dealer / factory tool +0.4 hr ▸ programming details
📍 Inside each door (four modules: FL, FR, RL, RR)
🔧 Xentry Diagnostics
⚠️ Controls windows, mirrors, locks, and door ambient lighting; window initialization required after replacement.
Telematics Communication Module (TCM) 1.0 hr R&R dealer / factory tool +0.6 hr ▸ programming details
📍 Rear parcel shelf or trunk area, near antenna
🔧 Xentry Diagnostics
⚠️ Handles Mercedes me connect services; requires subscription activation after replacement.
Seat Control Module (SCM) 0.8 hr R&R dealer / factory tool +0.4 hr ▸ programming details
📍 Under each front seat (left and right modules)
🔧 Xentry Diagnostics
⚠️ Controls seat adjustment, heating, ventilation, and massage functions; memory reset required.
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?
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