Wiring diagram engine performance electric for Mercedes-Benz B-class W246 facelift (2014-2018)

ACCELERATOR PEDAL SENSOR BLK/BLU WIRE BLK/VIO WIRE BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BRAKE BOOSTER VACUUM SENSOR BRN WIRE BRN/ORG WIRE BRN/RED WIRE BRN/YEL WIRE CAN EL H CAN EL L CAN V H CAN V L COMPUTER DATA LINES SYSTEM DRIVETRAIN CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE FRONT ELECTRICAL PREFUSE BOX FUSE 102 FUSE 40 FUSE 5 FUSE 63 FUSE 92 GATEWAY FOR POWERTRAIN CONTROL UNIT GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED PWM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SAM CONTROL UNIT SIG VEHICLE INTERIOR FUSE BOX YEL/BLU WIRE YEL/GRY WIRE YEL/RED WIRE

BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/YEL WIRE BLU/VIO WIRE BLU/WHT WIRE BRAKE BOOSTER VACUUM PUMP RELAY BRN WIRE BRN/BLK WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAN L H CAN L L CIRCUIT 15 RELAY (UNLATCHED) COMPUTER COMPUTER DATA LINES SYSTEM COOLANT EXPANSION RESERVOIR FILL LEVEL SENSOR (DUAL CHAMBER) DATA LINES SYSTEM DEFOGGER SYSTEM DRIVETRAIN CONTROL UNIT (LEFT END OF DASH) ELECTRIC VEHICLE SOUND GENERATOR ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 203 FUSE 207 FUSE 208 FUSE 211 FUSE 221 FUSE 222 FUSE 225 FUSE 226 FUSE 227 FUSE 228 FUSE 75 FUSE 91 GRN/WHT WIRE HIGH-VOLTAGE BATTERY COOLING SYSTEM SHUTOFF VALVE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED ORG/BLU WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SIG STARTER CIRCUIT 50 RELAY TO CIRCUIT TO FUSE 206 (DIAGRAM 7 OF 7) VACUUM PUMP VEHICLE INTERIOR FUSE BOX WHT WIRE WHT/RED WIRE YEL/BLU WIRE

BLK WIRE BLK/BLU WIRE BLK/YEL WIRE BLU/YEL WIRE CAN EL H CAN EL L COMPUTER DATA ELECTRIC MACHINE ELECTRIC MACHINE ROTOR POSITION SENSOR ELECTRIC REFRIGERANT COMPRESSOR (LOWER LEFT FRONT OF DRIVE MODULE ASSEMBLY) ENC A ENC B HV- LINES SYSTEM NCA WIRE ORG/ WIRE ORG/RED WIRE ORG/VIO WIRE POT PRX RED/BLK WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE SHD SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT WHT/GRY WIRE WHT/RED WIRE YEL WIRE

BLK WIRE BLK/YEL WIRE BLU/YEL WIRE BRN WIRE C SIG CAL EL H CAN EL L COMPUTER DATA LINES SYSTEM CONTACT CONTACTOR 2 CONTACTOR 1 DC F FUSE 751 FUSE 752 FUSE 753 FUSE 754 FUSE 755 GRN WIRE GRN/BLU WIRE HIGH VOLTAGE BATTERY HV- N/A NCA WIRE ORG/ WIRE ORG/RED WIRE ORG/VIO WIRE POT RED WIRE RED/BLK WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE SHD SWITCH VIO WIRE VIO/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE

BLK WIRE BLK/YEL WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CAN EL H CAN EL L CHARGER FEED-IN SOCKET (USA) (LEFT REAR FENDER) COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 234 FUSE 241 GRN WIRE GRN/BLU WIRE GRN/YEL WIRE HIGH-VOLTAGE DISCONNECT DEVICE (LEFT END OF DASH) HIGH-VOLTAGE PTC HEATER (UNDER FRONT CENTER OF VEHICLE) HOT AT ALL TIMES HV- NCA WIRE NOT USED ORG/ WIRE ORG/BLK WIRE ORG/RED WIRE ORG/VIO WIRE POT PRX RED WIRE RED/BLK WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE SHD VIO WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE

AIR CONDITIONING SYSTEM AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BATTERY COOLANT PUMP SWITCHOVER VALVE BATTERY COOLING SYSTEM COOLANT PUMP 1 BATTERY COOLING SYSTEM COOLANT PUMP 2 BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CAN EL H CAN EL L COMPUTER DATA LINES SYSTEM ELECTRIC DRIVE, CHARGER COOLANT PUMP FUSE 28 GRN WIRE GRN/BLU WIRE HEATER CIRCUIT CIRCULATION PUMP HOT W/ CIRCUIT 15 RELAY ENERGIZED ORG/ WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR VACUUM SENSOR SIG VEHICLE INTERIOR FUSE BOX VIO WIRE WHT WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

50 RELAY (DIAGRAM 2 OF 7) BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR DOWNSTREAM OF HIGH-VOLTAGE BATTERY COOLANT TEMPERATURE SENSOR UPSTREAM OF HIGH-VOLTAGE BATTERY COOLANT TEMPERATURE WARNING LAMP DEFOGGER SYSTEM DRIVE COOLANT TEMPERATURE SENSOR ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE DIAGNOSIS INDICATOR LAMP FROM CIRCUIT 15 RELAY (UNLATCHED) (DIAGRAM 2 OF 7) FROM STARTER CIRCUIT FUSE 206 FUSE 210 FUSE 212 FUSE 213 FUSE 214 FUSE 215 GRN WIRE GRN/BLU WIRE HEATING ELEMENT HIGH-VOLTAGE BATTERY COOLANT CIRCUIT HEATING ELEMENT INSTRUMENT CLUSTER MULTIFUNCTION DISPLAY N/A NCA WIRE ORG/ WIRE POT POWER DISPLAY POWER INDICATOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RES FUSE 209 SIG TEMPERATURE SENSOR THERMAL MANAGEMENT CONTROL UNIT (BEHIND REAR OF LEFT CARGO AREA TRIM PANEL) VIO WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE