Mercedes-Benz B-class W246 facelift (2014-2018) (behind rear of left cargo area trim panel) Wiring diagrams

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 WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE CAN E H CAN E L CAN EL H CAN EL L CHARGER CONTROL UNIT COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR DOWNSTREAM OF HIGH-VOLTAGE BATTERY COOLANT TEMPERATURE SENSOR UPSTREAM OF HIGH-VOLTAGE BATTERY DRIVE COOLANT TEMPERATURE SENSOR DRIVETRAIN CONTROL UNIT ELECTRIC DRIVE, CHARGER COOLANT PUMP ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 208 FUSE 212 FUSE 213 FUSE 214 GRN WIRE GRN/WHT WIRE HOT W/ TERMINAL PWM RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SIG THERMAL MANAGEMENT CONTROL UNIT WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

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 WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L CAN EL H CAN EL L COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR DOWNSTREAM OF HIGH-VOLTAGE BATTERY COOLANT TEMPERATURE SENSOR UPSTREAM OF HIGH-VOLTAGE BATTERY DRIVE COOLANT TEMPERATURE SENSOR DRIVETRAIN CONTROL UNIT ELECTRIC DRIVE, CHARGER COOLANT PUMP ENGINE COMPARTMENT FUSE, RELAY MODULE FRONT ELECTRICAL PREFUSE BOX FUSE 208 FUSE 212 FUSE 213 FUSE 214 FUSE 5 FUSE 98 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ TERMINAL INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PWM RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SAM CONTROL UNIT (LEFT END OF DASH) SIG THERMAL MANAGEMENT CONTROL UNIT VEHICLE INTERIOR FUSE BOX WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

ADAPTIVE DAMPING SYSTEM CONTROL UNIT BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN V H CAN V L CENTER REAR OF LUGGAGE COMPT) COLLISION PREVENTION ASSIST CONTROLLER UNIT DISTRONIC ELECTRIC CONTROLLER UNIT DRIVETRAIN CONTROL UNIT ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT GATEWAY FOR POWER TRAIN CONTROL UNIT GRN WIRE GRN/WHT WIRE LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT REAR BUMPER INTELLIGENT RADAR SENSOR RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR RIGHT REAR BUMPER INTELLIGENT RADAR SENSOR STEERING COLUMN MODULE CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT W/ DISTRONIC PLUS W/ DISTRONIC PLUS W/O ACTIVE PARK ASSIST W/ ACTIVE PARK ASSIST W/ PRE- SAFE W/O DISTRONIC PLUS

BATTERY MANAGEMENT SYSTEM CONTROL UNIT BRN WIRE BRN/RED WIRE CAMERA COVER CONTROL UNIT CAN B H CAN B L CAN EL H CAN EL L CAN I H CAN I L CAN L H CAN L L CAN-EL L LV CHARGER CONTROL UNIT DC/DC CONVERTER CONTROL UNIT DRIVETRAIN SENSOR CAN (CAN I) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR ELECTRIC DRIVE CAN (CAN EL) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR 1 ELECTRIC DRIVE CAN (CAN EL) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR 2 ELECTRIC DRIVE CAN (CAN EL) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR 3 ELECTRIC VEHICLE SOUND GENERATOR EMERGENCY CALL SYSTEM CONTROL UNIT GATEWAY FOR POWERTRAIN CONTROL UNIT HYBRID CAN (CAN L) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR ME-SFI (ME) CONTROL UNIT NCA WIRE NOX SENSOR CONTROL UNIT PARK PAWL CONTROL UNIT POWER ELECTRONICS CONTROL UNIT RED/YEL WIRE TELEMATICS SERVICES COMMUNICATION MODULE THERMAL MANAGEMENT CONTROL UNIT TRUNK LID/ LIFTGATE CONTROL UNIT DRIVETRAIN CONTROL UNIT W/ EMERGENCY CALL SYSTEM W/O EMERGENCY CALL SYSTEM WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRY WIRE YEL/RED WIRE

BLK/YEL WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN EL H CAN EL L COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 202 FUSE 207 FUSE 219 FUSE 220 FUSE 52 FUSE 57 FUSE 76 GRY/GRN WIRE HOT AT ALL TIMES HOT W/ STARTER CIRCUIT 50 RELAY ENERGIZED INSTRUMENT CLUSTER N/A PARK PAWL ACTUATOR MOTOR PARK PAWL ACTUATOR MOTOR CIRCUIT 87 RELAY PARK PAWL CONTROL UNIT PARK PAWL CONTROL UNIT CIRCUIT 87 RELAY PARK PAWL POSITION SENSOR POWER DISTRIBUTION SYSTEM RED WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE SIG A SIG B VEHICLE INTERIOR FUSE BOX VIO/BRN WIRE VIO/GRN WIRE VIO/ORG WIRE VIO/RED WIRE VIO/YEL WIRE YEL/GRY WIRE YEL/RED WIRE

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