Mercedes-Benz B-class W246 facelift (2014-2018) (b-class, gla class) Wiring diagrams

ANTI-THEFT ALARM SYSTEM/EMERGENCY CALL SYSTEM BUTTON GROUP AUTOMATIC REAR END DOOR BLK WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CLA CLASS COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 236 FUSE 82 GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HORN RLY HORNS SYSTEM HOT AT ALL TIMES LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LIFT GATE LOCKING PAWL SWITCH LIN B 13 MOT- ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PNK/BLU WIRE PNK/WHT WIRE PNK/YEL WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE ROTARY TUMBLER SWITCH S SIG SAM CONTROL UNIT (LEFT END OF DASH) SIG TRUNK LID/LIFTGATE CENTRAL LOCKING MOTOR TRUNK LID/LIFTGATE CONTROL UNIT VEHICLE INTERIOR FUSE BOX VIO WIRE WHT WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

ATA (EDW)/TOWING SENSOR/INTERIOR MOTION SENSOR CONTROL UNIT BLK WIRE BLK/VIO WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN C H CAN C L CAN E H CAN E L CENTRAL LOCKING MOTOR CLA CLASS CLA CLASS, GLA CLASS COMPUTER DATA LINES SYSTEM DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT FUSE 24 FUSE 26 FUSE 85 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT DOOR EXIT, WARNING LAMP LEFT FRONT DOOR HANDLE ILLUMINATION LEFT REAR WINDOW GLASS BREAKAGE SENSOR MOT- REAR WINDOW GLASS BREAKAGE SENSOR RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR EXIT, WARNING LAMP RIGHT FRONT DOOR HANDLE ILLUMINATION RIGHT FRONT DOOR LOCK RIGHT REAR WINDOW GLASS BREAKAGE SENSOR ROTARY TUMBLER SWITCH SIG VEHICLE INTERIOR FUSE BOX WHT WIRE

ANTI-THEFT ALARM SYSTEM/EMERGENCY CALL SYSTEM BUTTON GROUP AUTOMATIC REAR END DOOR BLK WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CLA CLASS COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 236 FUSE 82 GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HORN RLY HORNS SYSTEM HOT AT ALL TIMES LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LIFT GATE LOCKING PAWL SWITCH LIN B 13 MOT- ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PNK/BLU WIRE PNK/WHT WIRE PNK/YEL WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE ROTARY TUMBLER SWITCH S SIG SAM CONTROL UNIT (LEFT END OF DASH) SIG TRUNK LID/LIFTGATE CENTRAL LOCKING MOTOR TRUNK LID/LIFTGATE CONTROL UNIT VEHICLE INTERIOR FUSE BOX VIO WIRE WHT WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

ATA (EDW)/TOWING SENSOR/INTERIOR MOTION SENSOR CONTROL UNIT BLK WIRE BLK/VIO WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN C H CAN C L CAN E H CAN E L CENTRAL LOCKING MOTOR CLA CLASS CLA CLASS, GLA CLASS COMPUTER DATA LINES SYSTEM DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT FUSE 24 FUSE 26 FUSE 85 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT DOOR EXIT, WARNING LAMP LEFT FRONT DOOR HANDLE ILLUMINATION LEFT REAR WINDOW GLASS BREAKAGE SENSOR MOT- REAR WINDOW GLASS BREAKAGE SENSOR RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR EXIT, WARNING LAMP RIGHT FRONT DOOR HANDLE ILLUMINATION RIGHT FRONT DOOR LOCK RIGHT REAR WINDOW GLASS BREAKAGE SENSOR ROTARY TUMBLER SWITCH SIG VEHICLE INTERIOR FUSE BOX WHT WIRE

ABL L ABL R ACOUSTIC TURN SIGNAL LIGHT FUNCTION CHECK ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L CAN-G H CAN-G L CENTER REAR OF LUGGAGE COMPT) CENTER STOP LAMP CLA CLASS COMPUTER DATA LINES SYSTEM CORNERING ILLUMINATION ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRIC PARKING BRAKE SWITCH EXTERIOR LIGHTS LED ACTUATION MODULE GLA CLASS B-CLASS, CLA CLASS GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE HEADLAMP CONTROL UNIT INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT FRONT LAMP UNIT LEFT OUTSIDE MIRROR LEFT TURN SIGNAL IND LIGHT MULTI-FUNCTION DISPLAY NCA WIRE ORG/BLK WIRE OUTSIDE MIRROR AMBIENT LAMP OUTSIDE MIRROR TURN SIGNAL LAMP PARKING LIGHT, STANDING LIGHT, DAYTIME RUNNING LIGHT RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR RIGHT TURN SIGNAL IND LIGHT SIDE MARKER LAMP SW 1 SW 3 SW 4 SW 6 TURN SIGNAL LAMP TURN SIGNAL LIGHT/ SIDE MARKER LIGHT W/ XENON HEADLAMP W/O XENON HEADLAMP WHT WIRE WHT/RED WIRE WHT/YEL WIRE YEL/WHT WIRE

BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CENTER INSTRUMENT PANEL SPEAKER CLA CLASS EMERGENCY CALL SYSTEM CONTROL UNIT FUSE 61 GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT REAR SURROUND SPEAKER MOST DATA BUS CIRCUIT MOST IN MOST OUT MOS MOST WS ORG/ WIRE PNK WIRE RED WIRE RED/YEL WIRE RIGHT REAR SURROUND SPEAKER SOUND SYSTEM AMPLIFIER CONTROL UNIT TEL ST TELEMATICS SERVICES COMMUNICATION MODULE VEHICLE INTERIOR FUSE BOX VIO WIRE W/ EMERGENCY CALL/ASSISTANCE SYSTEM W/O EMERGENCY CALL/ASSISTANCE SYSTEM WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CLA CLASS COMPUTER DATA LINES SYSTEM FUSE 88 FUSE 99 GRY WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT TIRE PRESSURE SENSOR LEFT REAR TIRE PRESSURE SENSOR RED WIRE RED/BLK WIRE RED/GRY WIRE RELAY ENERGIZED RIGHT FRONT TIRE PRESSURE SENSOR RIGHT REAR TIRE PRESSURE SENSOR TIRE PRESSURE MONITOR CONTROL UNIT TIRE PRESSURE MONITOR WARNING LAMP VEHICLE INTERIOR FUSE BOX

BLK WIRE BLK/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DECOUPLING RELAY FRONT ELECTRICAL PREFUSE BOX FUSE 239 FUSE 32 FUSE 56 FUSE 82 FUSE 96 GRN WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INSTRUMENT CLUSTER LIFTGATE WINDSHIELD WASHER SYSTEM SWITCH MOT- NCA WIRE ORG/GRN WIRE OVERHEAD CONTROL PANEL UNIT RAIN/LIGHT SENSOR (W/ RAIN SENSOR) LIGHT SENSOR (W/O RAIN SENSOR) REAR WINDOW WIPER RELAY RED WIRE RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE SAM CONTROL UNIT (LEFT END OF DASH) SIG SPRAY NOZZLE HEATER SPRAY NOZZLE HOSE HEATER STEERING COLUMN MODULE CONTROL UNIT TAILGATE WIPER MOTOR VEHICLE INTERIOR FUSE BOX VIO WIRE WINDSHIELD WASHER SYSTEM PUMP WINDSHIELD WASHER SYSTEM SWITCH WINDSHIELD WASHER SYSTEM WASHER FLUID LEVEL SWITCH WINDSHIELD WIPER ON/OFF RELAY WIPER LEVEL 1/2 RELAY WIPER MOTOR WIPER SWITCH WMV A/D WMV PP WMV WS YEL/GRN WIRE YEL/VIO WIRE