Mercedes-Benz E-class W213/S213/C238/A238 facelift (2020-2024) computer data lines system Wiring diagrams

2 3 A M K KK 6 7 SIG (+) 6 7 WAPU+ AFV AC HOUSING, BLOWER REGULATOR BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L CENTRAL AIR DISTRIBUTION POSITION DETECTION MICROSWITCH CLIMATE CONTROL UNIT (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC MOTOR EMP SIG EVAPORATOR TEMPERATURE SENSOR FUSE 210 FUSE 3 FUSE 461 FUSE 5 FUSE 6 GRN WIRE GRN/VIO WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT BOOSTER BLOWER LEFT FOOTWELL AIR OUTLET TEMPERATURE SENSOR MULTIPLE FUSE 2 MULTIPLE FUSE 3 NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE REAR FOOTWELL VENT AIR OUTLET TEMPERATURE SENSOR REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RIGHT BOOSTER BLOWER RIGHT FOOTWELL AIR OUTLET TEMPERATURE SENSOR SIG STATIONARY HEATER UNIT TEMP SIG VEHICLE INTERIOR PREFUSE BOX VIO WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/VIO WIRE

A/C BUTTON A/C, RESIDUAL HEAT ON/OFF BUTTON AIR DISTRIBUTION BUTTON AIR RECIRCULATION MODE BUTTON BLK/YEL WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CAN HMI H CAN HMI L CAN I H CAN I L CAN PER H CAN PER L CLIMATE CONTROL MENU BUTTON CLIMATE CONTROL MENU, RESIDUAL HEAT ON/OFF BUTTON CLIMATE CONTROL OPERATING UNIT COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH COOLANT TEMPERATURE SENSOR (FRONT CENTER OF ENGINE) COUPE, WAGON CUP HOLDER, POWER OUTLET RELAY ENERGIZED DEFROSTING BUTTON DRIVER-SIDE FUSE, RELAY MODULE DRIVETRAIN CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FAN MOTOR (BEHIND RADIATOR) FRONT AUTO BUTTON FRONT BLOWER BUTTON FRONT SAM CONTROL UNIT FUSE 117 FUSE 119 FUSE 209 FUSE 305 FUSE 311 FUSE 405 FUSE 442 FUSE 7 GRN WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ HOT W/ CPC RELAY ENERGIZED INSTRUMENT CLUSTER INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT AIR DISTRIBUTION BUTTON LEFT TEMPERATURE SELECTION BUTTON ME-SFI (ME) CONTROL UNIT (TOP OF ENGINE) NCA WIRE OFF, CLIMATE CONTROL MENU BUTTON OUTSIDE TEMPERATURE SENSOR OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR CUP HOLDER REAR FUSE, RELAY MODULE REAR WINDOW HEATER BUTTON RED (OR RED/WHT) WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR (LOWER LEFT FRONT OF ENGINE) REFRIGERANT COMPRESSOR REGULATION VALVE REFRIGERANT PRESSURE SENSOR (IF EQUIPPED) (AT BOTTOM LEFT SIDE OF RADIATOR) RIGHT AIR DISTRIBUTION BUTTON RIGHT TEMPERATURE SELECTION BUTTON SIG SIG GND STATIONARY HEATER BUTTON SYNC BUTTON VIO WIRE VIO/WHT WIRE YEL WIRE

ACTIVE BRAKE ASSIST CONTROLLER UNIT BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM FLEX-E BM FUSE 463 FUSE 6 GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT MULTIPLE FUSE 1 PASSENGER-SIDE A-PILLAR FUSE BOX PNK FLEX-E BP WIRE REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE VIO WIRE VIO/WHT WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L CAN PER H CAN PER L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT FUSE 110 FUSE 128 FUSE 133 FUSE 200 FUSE 305 GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT LEFT FRONT LAMP UNIT OVERHEAD CONSOLE PASSENGER-SIDE A-PILLAR FUSE BOX PNK SENS (+) WIRE PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT SENS SIG SIG (+) COC STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/WHT WIRE YEL WIRE

BLK WIRE BLK/BRN WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L CAN PER H CAN PER L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT FUSE 110 FUSE 128 FUSE 133 FUSE 200 FUSE 305 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT LEFT FRONT LAMP UNIT LEFT REAR LEVEL SENSOR OVERHEAD CONSOLE PASSENGER-SIDE A-PILLAR FUSE BOX PNK SENS (+) WIRE PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT SENS SIG SIG (+) COC SIG GND STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/WHT WIRE WHT/BLK WIRE YEL WIRE

AUDIO H AUDIO L+ BLK WIRE BLK/WHT WIRE BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM ETH RX+ ETH TX- ETHRX- ETHTX+ ETHTX- ETHERNET FUSE 4 FUSE 463 GRN/VIO WIRE GRY WIRE GRY/BRN WIRE HEAD UNIT HEAD UNIT/ INSTRUMENT CLUSTER DISPLAY CLUSTER HEAD-UP DISPLAY HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT INSTRUMENT CLUSTER SPEAKER MULTIPLE FUSE 2 NCA WIRE ORG/ WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE RED WIRE RED/WHT WIRE SHD SHD CID/PIP SHIELD SIG VIO WIRE VIO/BRN WIRE VIO/WHT WIRE WAKE-UP

BLK WIRE BLU WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN H H CAN H L COC BEL COC COC SW COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT FRONT SAM CONTROL UNIT FUEL PRESSURE SENSOR FUEL PUMP CONTROL UNIT FUSE 200 GRN WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/YEL WIRE GRY/BLU WIRE HOT AT ALL TIMES LEFT FUEL TANK FUEL LEVEL INDICATOR FILL LEVEL SENSOR NCA WIRE ORG/ WIRE OUTSIDE TEMPERATURE SENSOR RED WIRE RIGHT FUEL TANK FUEL LEVEL INDICATOR FILL LEVEL SENSOR SIG SIG (1) SIG (2) VIO WIRE VIO/WHT WIRE YEL WIRE

ANTI-THEFT SYSTEM ATA (EDW)/TOWING SENSOR/ INTERIOR MOTION SENSOR CONTROL UNIT BLK WIRE BLK/YEL WIRE BREAKDOWN ASSISTANCE BUTTON BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FRONT DOME LAMP FRONT DOME LAMP BUTTON FUSE 316 GRN WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES INSIDE REAR VIEW MIRROR INTERIOR LAMP AUTOMATIC FUNCTION BUTTON LEFT FRONT READING LAMP BUTTON MB INFO BUTTON NCA WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX REAR DOME LAMP BUTTON RED WIRE RED/WHT WIRE RGB-LIN RIGHT FRONT READING LAMP BUTTON SIG SOS BUTTON VIO WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/BLU WIRE

BLK WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE DRIVER-SIDE POWER WINDOW, OUTSIDE MIRROR ADJUSTMENT SWITCH GROUP FUSE 203 FUSE 214 FUSE 301 FUSE 302 GRN WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR POWER WINDOW MOTOR LEFT REAR DOOR CONTROL UNIT LEFT REAR DOOR POWER WINDOW MOTOR LEFT REAR POWER WINDOW SWITCH M+ (-) PASSENGER-SIDE A-PILLAR FUSE BOX PASSENGER-SIDE POWER WINDOW SWITCH RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR POWER WINDOW MOTOR RIGHT REAR DOOR CONTROL UNIT RIGHT REAR DOOR POWER WINDOW MOTOR RIGHT REAR POWER WINDOW SWITCH SIG WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/GRN WIRE

AUDIO/COMAND CONTROL PANEL BLK WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE CAN A H CAN A L CAN B L CAN-B H AAG COMPUTER DATA LINES SYSTEM COUPE, WAGON CONVERTIBLE FUSE 476 GRN WIRE GRY WIRE HOT AT ALL TIMES MOT (+) GND MOT MULTIPLE FUSE 2 NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT REAR WINDOW ROLLER SUN BLIND MOTOR RED WIRE RED/BLK WIRE RED/BLU WIRE RIGHT LOWER CONTROL PANEL SEDAN SIG VIO WIRE WHT WIRE YEL WIRE