Mercedes-Benz E-class W213/S213/C238/A238 facelift (2020-2024) engine compartment prefuse box Wiring diagrams

AIR BODY CONTROL COMPRESSOR AIR BODY CONTROL PRESSURE RELIEF VALVE AIR BODY CONTROL UNIT BLK/BRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BRN WIRE COMPRESSOR) COMPUTER DATA LINES SYSTEM COUPE CONVERTIBLE COUPE CONVERTIBLE, SEDAN ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 114 FUSE 132 FUSE 454 FUSE 5 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT FRONT LEFT FRONT AXLE DAMPING VALVE UNIT LEFT LOWER CONTROL PANEL NCA WIRE ORG/ WIRE PNK WIRE REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RELAY R RIGHT REAR LEVEL SENSOR SEDAN SEDAN WAGON SIG SOLENOID VALVE 1 VALVE 2 VEHICLE LEVEL BUTTON VIO WIRE WAGON WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE

BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/VIO WIRE BLU/BLK WIRE BLU/YEL WIRE BRAKE CIRCUIT 1 INTAKE BALL VALVE BRAKE CIRCUIT 1 SWITCHOVER VALVE BRAKE CIRCUIT 2 INTAKE BALL VALVE BRAKE CIRCUIT 2 PRESSURE SENSOR BRAKE CIRCUIT 2 SWITCHOVER VALVE BRAKE VACUUM SENSOR BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L COMPUTER DATA LINES SYSTEM ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FLEX-E BP FUSE 1 FUSE 129 FUSE 2 GRN WIRE GRN/ORG WIRE GRN/YEL WIRE GRY/GRN WIRE HIGH PRESSURE, RETURN PUMP HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED LEFT FRONT PRESSURE REGULATOR VALVE (PRESSURE HOLD) LEFT FRONT PRESSURE REGULATOR VALVE (PRESSURE RELEASE) LEFT REAR AXLE RPM SENSOR LEFT REAR PRESSURE REGULATOR VALVE (PRESSURE HOLD) LEFT REAR PRESSURE REGULATOR VALVE (PRESSURE RELEASE) M+ (-) M+ (-) 31 MASTER BRAKE CYLINDER PRESSURE SENSOR NCA WIRE PNK/GRN WIRE REAR PRESSURE SENSOR REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RIGHT FRONT PRESSURE REGULATOR VALVE (PRESSURE HOLD) RIGHT FRONT PRESSURE REGULATOR VALVE (PRESSURE RELEASE) RIGHT REAR AXLE RPM SENSOR RIGHT REAR BRAKE WEAR SENSOR RIGHT REAR PRESSURE REGULATOR VALVE (PRESSURE HOLD) RIGHT REAR PRESSURE REGULATOR VALVE (PRESSURE RELEASE) SIG SIG PNK FLEX E BM PNK FLEX E BM WIRE STOP LAMP SWITCH TRACTION SYSTEM HYDRAULIC UNIT (LEFT REAR OF ENGINE COMPT) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/YEL WIRE YEL 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

BLK/YEL WIRE BLU/BRN 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 UNIT COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP COOLANT LEVEL SWITCH COOLANT TEMPERATURE SENSOR DRIVER-SIDE FUSE, RELAY MODULE DRIVETRAIN CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FAN MOTOR (BEHIND RADIATOR) FRONT SAM CONTROL UNIT FUSE 119 FUSE 210 FUSE 311 FUSE 7 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ CPC RELAY ENERGIZED INSTRUMENT CLUSTER INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN ME-SFI (ME) CONTROL UNIT NCA WIRE OUTSIDE TEMPERATURE SENSOR OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX RED (OR RED/WHT) WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE SIG TOP OF ENGINE) VIO WIRE VIO/WHT WIRE WAPU+ WHT/BLU WIRE

AIR BODY CONTROL COMPRESSOR (LEFT FRONT OF ENGINE COMPT) AIR BODY CONTROL PRESSURE RELIEF VALVE BLK/BRN WIRE BLU/GRN WIRE BRN WIRE COMPRESSOR) COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 114 FUSE 132 FUSE 454 FUSE 5 GRN WIRE GRN/VIO WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT REAR LEVEL SENSOR NIV HL (-) NIV HR (-) NIV HR ABL (+) ORG/ WIRE PNK WIRE REAR AXLE ELECTRONIC LEVEL CONTROL UNIT REAR AXLE ELECTRONIC LEVEL CONTROL VALVE UNIT REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RELAY R RIGHT REAR LEVEL SENSOR VIO WIRE WHT/BLK WIRE

BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM ELECTRIC POWER STEERING ACTUATOR MOTOR ELECTRIC POWER STEERING TORQUE SENSOR ELECTRICAL POWER STEERING CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FLEX-E BM FLEX-E BP FUSE 8 GRN WIRE HOT AT ALL TIMES INDEX INSTRUMENT CLUSTER NCA WIRE PNK WIRE RED WIRE SENT A SENT B VIO WIRE VIO/WHT WIRE

BLK WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN H H CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER SEAT BELT BUCKLE SWITCH DRIVER SEAT POSITION DETECTION SWITCH DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH (LEFT END OF DASH) ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FRONT SAM CONTROL UNIT FUSE 1 FUSE 200 FUSE 203 FUSE 312 FUSE 463 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FRONT DOOR LOCK NCA WIRE ORG/GRN WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PRE-LOCKING POSITION MICROSWITCH REAR SAM CONTROL UNIT RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT FRONT BRAKE WEAR SENSOR RIGHT REAR BRAKE WEAR SENSOR SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VIO WIRE VIO/WHT WIRE YEL WIRE YEL/GRY WIRE

BLK WIRE BLK/BLU WIRE BRN WIRE CAN H H CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FUSE 1 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT ELECTRIC PARKING BRAKE ACTUATOR MOTOR M+ (-) RED WIRE RED/WHT WIRE RIGHT ELECTRIC PARKING BRAKE ACTUATOR MOTOR SIG VIO WIRE VIO/WHT WIRE WHT WIRE YEL WIRE

BLK/BLU WIRE BLK/YEL WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE EXCEPT CONVERTIBLE FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT FUSE 106 FUSE 111 FUSE 200 FUSE 205 FUSE 305 FUSE 316 FUSE 5 GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER N/A OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SIG SPRAY NOZZLE HOSE HEATER (W/ HEATED WINDSHIELD WASHER SYSTEM) STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/WHT WIRE W/ MAGIC CONTROL VISION W/O MAGIC CONTROL VISION WINDSHIELD WASHER FLUID LEVEL INDICATOR SWITCH WINDSHIELD WASHER SYSTEM PUMP WINDSHIELD WASHER SYSTEM SWITCH WIPER MOTOR WIPER PARK POSITION HEATER RELAY WIPER SWITCH YEL WIRE

A S DMTLP A S DMTLV BLK/BLU WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/YEL WIRE CAN C H CAN C L CAN L H CAN L L COMPUTER COMPUTER DATA LINES SYSTEM CRASH DATA LINES DRIVETRAIN CONTROL UNIT (ABOVE LEFT FRONT WHEELWELL) ENGINE COMPARTMENT PREFUSE BOX FUSE 5 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE HOT AT ALL TIMES INTAKE CAMSHAFT HALL SENSOR LEFT ACTIVE ENGINE MOUNT LOW-TEMPERATURE CIRCUIT TEMPERATURE SENSOR ORG/ WIRE ORG/BLU WIRE ORG/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT ACTIVE ENGINE MOUNT SIG STR+ SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM VIO/ORG WIRE WHT WIRE YEL/RED WIRE