Mercedes-Benz E-class W213/S213/C238/A238 facelift (2020-2024) battery disconnect switch relay Wiring diagrams

ALTERNATOR BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL UNIT FUSE 13 GRN WIRE GRN/WHT WIRE INSTRUMENT CLUSTER CONTROL UNIT ME-SFI (ME) CONTROL UNIT NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY PARTITION WALL BUSBAR RED WIRE STARTING CIRCUIT VIO WIRE VIO/WHT WIRE

BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L CIRCUIT 30 TERMINAL BLOCK COMPUTER DATA LINES SYSTEM DC/DC CONVERTER CONTROL UNIT DRIVER-SIDE FUSE, RELAY MODULE ENGINE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT FUSE 10 FUSE 119 FUSE 202 FUSE 6 FUSE 7 GRY WIRE HOT W/ CPC RELAY ENERGIZED INSTRUMENT CLUSTER NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE VEHICLE INTERIOR PREFUSE BOX VIO/WHT WIRE

ACTIVE BRAKE ASSIST CONTROLLER UNIT ACTIVE DISTANCE ASSIST DISTRONIC ELECTRIC CONTROLLER UNIT AUGMENTED REALITY CAMERA BATTERY DISCONNECT SWITCH RELAY BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CIRCUIT 31 POTENTIAL DISTRIBUTOR 1 CYLINDER 1 IGNITION COIL CYLINDER 2 IGNITION COIL CYLINDER 3 IGNITION COIL CYLINDER 4 IGNITION COIL DRIVE UNIT CONTROL UNIT ELECTRIC DIFFERENTIAL LOCK CONTROL UNIT FRONT SAM CONTROL UNIT LEFT ACTIVE ENGINE MOUNT LEFT BOOSTER BLOWER LEFT FRONT MULTICONTOUR SEAT CONTROL UNIT LEFT OUTER FRONT BUMPER RADAR SENSOR LEFT REAR ILLUMINATED DOOR SILL MOLDING LEFT REAR MULTICONTOUR SEAT CONTROL UNIT ME-SFI (ME) CONTROL UNIT MONO MULTI-FUNCTION CAMERA NCA WIRE OVERHEAD CONSOLE PANORAMIC SLIDING SUNROOF CONTROL MODULE POTENTIAL DISTRIBUTOR RADOME HEATER RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR AIR CONDITIONING OPERATING UNIT RIGHT BOOSTER BLOWER RIGHT ENGINE HOOD CONTACT SWITCH RIGHT FRONT BRAKE WEAR SENSOR RIGHT FRONT MULTICONTOUR SEAT CONTROL UNIT RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR RIGHT OUTER FRONT BUMPER RADAR SENSOR RIGHT REAR DOOR CONTROL UNIT SHORT, LONG-RANGE RADAR SENSOR SLIDING ROOF CONTROL MODULE STEREO MULTI-FUNCTION CAMERA TIRE PRESSURE MONITOR CONTROL UNIT

AC HOUSING, ALTERNATOR BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CIRCUIT 30 TERMINAL BLOCK CLOSE DC/AC CONVERTER CONTROL UNIT ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENABLE FAN MOTOR FROM REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) FRONT SAM CONTROL UNIT FSSP FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT FUSE 1 FUSE 10 FUSE 13 FUSE 2 FUSE 3 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 N/A NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE PARTITION WALL BUSBAR PTC HEATER BOOSTER RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RES FUSE 4 RES FUSE 9 SIG TO DRIVER-SIDE FUSE, RELAY MODULE (DIAGRAM 2 OF 8) TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 7 OF 8) TO ENGINE FUSE, RELAY MODULE (DIAGRAM 8 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 5 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 6 OF 8) TO REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) VOLTAGE DIP LIMITER WINDSHIELD HEATER CONTROL UNIT

AC HOUSING, BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN BH CAN BL CIRCUIT 30 TERMINAL BLOCK CLOSE COMPUTER DATA LINES SYSTEM DC/AC CONVERTER CONTROL UNIT DC/DC CONVERTER CONTROL UNIT (RIGHT SIDE OF ENGINE COMPT) ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENABLE FAN MOTOR FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 8) FROM PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 6 OF 8) FROM REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) FROM REAR FUSE, RELAY MODULE (DIAGRAM 4 OF 8) FRONT SAM CONTROL UNIT FSSP FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT FUSE 1 FUSE 10 FUSE 13 FUSE 2 FUSE 3 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 GRY WIRE N/A NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE PNK/YEL WIRE PYF (+) PYRO- FUSE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RES FUSE 11 RES FUSE 12 RES FUSE 2 RES FUSE 4 RES FUSE 8 RES FUSE 9 SIG STARTER GENERATOR CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT TO DC/DC CONVERTER CONTROL UNIT (DIAGRAM 1 OF 8) TO DRIVER-SIDE FUSE, RELAY MODULE (DIAGRAM 2 OF 8) TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 7 OF 8) TO ENGINE FUSE, RELAY MODULE (DIAGRAM 8 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 5 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 6 OF 8) TO REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) VEHICLE INTERIOR PREFUSE BOX VIO WIRE

AC HOUSING, BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN BH CAN BL CIRCUIT 30 TERMINAL BLOCK CLOSE COMPUTER DATA LINES SYSTEM DC/AC CONVERTER CONTROL UNIT DC/DC CONVERTER CONTROL UNIT (RIGHT SIDE OF ENGINE COMPT) ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENABLE FAN MOTOR FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 8) FROM PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 6 OF 8) FROM REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) FROM REAR FUSE, RELAY MODULE (DIAGRAM 4 OF 8) FRONT SAM CONTROL UNIT FSSP FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT FUSE 1 FUSE 10 FUSE 13 FUSE 2 FUSE 3 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 GRY WIRE N/A NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE PNK/YEL WIRE PYF (+) PYRO- FUSE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RES FUSE 11 RES FUSE 12 RES FUSE 2 RES FUSE 4 RES FUSE 8 RES FUSE 9 SIG STARTER GENERATOR CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT TO DC/DC CONVERTER CONTROL UNIT (DIAGRAM 1 OF 8) TO DRIVER-SIDE FUSE, RELAY MODULE (DIAGRAM 2 OF 8) TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 7 OF 8) TO ENGINE FUSE, RELAY MODULE (DIAGRAM 8 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 5 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 6 OF 8) TO REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) VEHICLE INTERIOR PREFUSE BOX VIO WIRE

AC HOUSING, ALTERNATOR BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CIRCUIT 30 TERMINAL BLOCK CLOSE DC/AC CONVERTER CONTROL UNIT ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENABLE FAN MOTOR FROM REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) FRONT SAM CONTROL UNIT FSSP FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT FUSE 1 FUSE 10 FUSE 13 FUSE 2 FUSE 3 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 N/A NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE PARTITION WALL BUSBAR PTC HEATER BOOSTER RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RES FUSE 4 RES FUSE 9 SIG TO DRIVER-SIDE FUSE, RELAY MODULE (DIAGRAM 2 OF 8) TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 7 OF 8) TO ENGINE FUSE, RELAY MODULE (DIAGRAM 8 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 5 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 6 OF 8) TO REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) VOLTAGE DIP LIMITER WINDSHIELD HEATER CONTROL UNIT

AC HOUSING, ALTERNATOR BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CIRCUIT 30 TERMINAL BLOCK CLOSE DC/AC CONVERTER CONTROL UNIT ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENABLE FAN MOTOR FROM REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) FRONT SAM CONTROL UNIT FSSP FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT FUSE 1 FUSE 10 FUSE 13 FUSE 2 FUSE 3 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 N/A NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE PARTITION WALL BUSBAR PTC HEATER BOOSTER RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RES FUSE 4 RES FUSE 9 SIG TO DRIVER-SIDE FUSE, RELAY MODULE (DIAGRAM 2 OF 8) TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 7 OF 8) TO ENGINE FUSE, RELAY MODULE (DIAGRAM 8 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 5 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 6 OF 8) TO REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) VOLTAGE DIP LIMITER WINDSHIELD HEATER CONTROL UNIT

ALTERNATOR BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT FUSE 113 FUSE 127 FUSE 13 FUSE 131 GRN WIRE GRN/WHT WIRE HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED ME-SFI (ME) CONTROL UNIT N/A NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY PARTITION WALL BUSBAR RED WIRE STARTER STARTER CIRCUIT 50 RELAY STARTER TERMINAL 15 RELAY VIO WIRE VIO/WHT WIRE VOLTAGE DIP LIMITER YEL/RED WIRE

BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CIRCUIT 30 TERMINAL BLOCK COMPUTER DATA LINES SYSTEM DC/DC CONVERTER CONTROL UNIT DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT FUSE 119 FUSE 202 FUSE 6 GRN WIRE GRY WIRE HOT W/ CPC RELAY ENERGIZED KEYLESS GO START/STOP BUTTON NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE PNK WIRE PWM-SST RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SIG STEERING COLUMN MODULE CONTROL UNIT WHT WIRE