Mercedes-Benz E-class W212/S212/C207/A207 facelift (2013-2016) hot at all times Wiring diagrams

4 3 2 1 SIG 43 18 LPV LUES AC HOUSING, AIR DISTRIBUTION FLAP ACTUATOR MOTOR (LEFT END OF HVAC UNIT) AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK/BLU WIRE BLK/RED WIRE BLOWER MOTOR BLOWER REGULATOR BLU/GRN WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR (REAR OF LEFT CYLINDER BANK) DEFROSTER VENT FLAP ACTUATOR MOTOR (UPPER LEFT END OF HVAC UNIT) ENGINE CONTROLS SYSTEM FRONT ELECTRICAL PREFUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE FUSE 158 GRN/BLU WIRE GRN/RED WIRE HOT AT ALL TIMES HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED LEFT BLENDING AIR FLAP ACTUATOR (LOWER LEFT SIDE OF HVAC UNIT) LIN B 31 PURGE CONTROL VALVE (LEFT FRONT OF ENGINE COMPT) RED WIRE RED/BLU WIRE RIGHT BLENDING AIR FLAP ACTUATOR (BOTTOM RIGHT CENTER OF HVAC UNIT) SOLID STATE TMOT VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE W/O ECO START/ STOP FUNCTION W/ ECO START/ STOP FUNCTION WHT WIRE WHT/BRN WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 CAN-B H CAN-B L 10 11 12 13 14 15 16 LIN DATA 3.5L AIR RECIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM COUPE EVAPORATOR TEMPERATURE SENSOR (LOWER RIGHT SIDE OF HVAC EVAPORATOR ASSEMBLY) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 12 GND (-) 31 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES INTERIOR HUMIDITY/ TEMPERATURE SENSOR (IF EQUIPPED) (TOP CENTER OF WINDSHIELD) INTERIOR TEMPERATURE SENSOR (LEFT CENTER OF DASH) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT CENTER AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) LEFT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) LEFT SIDE AIR OUTLET TEMPERATURE SENSOR (LEFT SIDE OF DASH) NCA WIRE OVERHEAD CONTROL PANEL ELECTRONICS (W/O CAN) REAR WINDOW HEATER BUTTON RED/BLK WIRE RED/BRN WIRE RED/VIO WIRE REFRIGERANT COMPRESSOR (LOWER LEFT FRONT ENGINE) REFRIGERANT PRESSURE SENSOR (LOWER LEFT SIDE OF RADIATOR ON REFRIGERANT LINE) RIGHT CENTER AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) RIGHT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (RIGHT FRONT FOOTWELL AREA) RIGHT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR (RIGHT SIDE OF DASH) SIG SIG SOLID STATE SUN SENSOR (TOP CENTER OF DASH) VIO/WHT WIRE WHT/BLU WIRE YEL/BLU WIRE

4 3 2 1 SIG 43 18 LPV LUES AC HOUSING, AIR DISTRIBUTION FLAP ACTUATOR MOTOR (LEFT END OF HVAC UNIT) AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK/BLU WIRE BLK/RED WIRE BLOWER MOTOR BLOWER REGULATOR BLU/GRN WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR (REAR OF LEFT CYLINDER BANK) DEFROSTER VENT FLAP ACTUATOR MOTOR (UPPER LEFT END OF HVAC UNIT) ENGINE CONTROLS SYSTEM FRONT ELECTRICAL PREFUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE FUSE 158 GRN/BLU WIRE GRN/RED WIRE HOT AT ALL TIMES HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED LEFT BLENDING AIR FLAP ACTUATOR (LOWER LEFT SIDE OF HVAC UNIT) LIN B 31 PURGE CONTROL VALVE (LEFT FRONT OF ENGINE COMPT) RED WIRE RED/BLU WIRE RIGHT BLENDING AIR FLAP ACTUATOR (BOTTOM RIGHT CENTER OF HVAC UNIT) SOLID STATE TMOT VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE W/O ECO START/ STOP FUNCTION W/ ECO START/ STOP FUNCTION WHT WIRE WHT/BRN WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 COMPUTER DATA LINES SYSTEM CAN B H CAN B L 1 2 GND DATA 10 11 12 13 14 15 16 LIN DATA 3.5L, 4.6L TURBO 30 GND 31 AIR RECIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLU GRY/ WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE COUPE EMISSIONS SENSOR (RIGHT REAR OF ENGINE COMPT) EVAPORATOR TEMPERATURE SENSOR (LOWER RIGHT SIDE OF HVAC EVAPORATOR ASSEMBLY) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 12 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES INTERIOR HUMIDITY/ TEMPERATURE SENSOR (IF EQUIPPED) (TOP CENTER OF WINDSHIELD) INTERIOR TEMPERATURE SENSOR (LEFT CENTER OF DASH) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT CENTER AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) LEFT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (LEFT FRONT FOOTWELL AREA) LEFT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) LEFT SIDE AIR OUTLET TEMPERATURE SENSOR (LEFT SIDE OF DASH) NCA WIRE OVERHEAD CONTROL PANEL ELECTRONICS (W/O CAN) REAR AUTOMATIC AIR CONDITIONING OPERATING UNIT REAR FOOTWELL AIR OUTLET REAR WINDOW HEATER BUTTON RED/BLK WIRE RED/BRN WIRE RED/VIO WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR (LOWER LEFT FRONT ENGINE) REFRIGERANT PRESSURE SENSOR (LOWER LEFT SIDE OF RADIATOR ON REFRIGERANT LINE) RIGHT CENTER AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) RIGHT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (RIGHT FRONT FOOTWELL AREA) RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR (RIGHT SIDE OF DASH) SIG SIG SIG SIG DATA FOND GND SOLID STATE SUN SENSOR (TOP CENTER OF DASH) TEMPERATURE SENSOR (REAR OF CENTER CONSOLE) VIO/WHT WIRE W/ AIR OUTLET SYMBOL ILLUMINATION WHT/BLU WIRE YEL/BLU WIRE

4 3 2 1 SIG 43 18 LPV LUES AC HOUSING, AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK/BLU WIRE BLK/RED WIRE BLOWER MOTOR BLOWER REGULATOR BLU/GRN WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP COOLANT TEMPERATURE SENSOR (REAR OF LEFT CYLINDER BANK) DIFFUSE FLAP ACTUATOR MOTOR (TOP CENTER OF HVAC UNIT) ENGINE CONTROLS SYSTEM FRONT ELECTRICAL PREFUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE FUSE 158 GRN/BLU WIRE GRN/RED WIRE HOT AT ALL TIMES HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED LEFT BLENDING AIR FLAP ACTUATOR (LOWER LEFT SIDE OF HVAC UNIT) LEFT DEFROSTER VENT FLAP ACTUATOR MOTOR (UPPER LEFT SIDE OF HVAC UNIT) LEFT FOOTWELL FLAP ACTUATOR MOTOR (LOWER LEFT SIDE OF HVAC UNIT) PURGE CONTROL VALVE (LEFT FRONT OF ENGINE COMPT) RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT BLENDING AIR FLAP ACTUATOR (BOTTOM RIGHT CENTER OF HVAC UNIT) RIGHT CENTER AIR OUTLET FLAP ACTUATOR MOTOR (RIGHT FRONT OF HVAC UNIT) RIGHT DEFROSTER VENT FLAP ACTUATOR MOTOR (UPPER RIGHT SIDE OF HVAC UNIT) RIGHT FOOTWELL FLAP ACTUATOR MOTOR (LOWER RIGHT SIDE OF HVAC UNIT) SIG SOLID STATE TMOT VIO/WHT WIRE W/O ECO START/ STOP FUNCTION W/ ECO START/ STOP FUNCTION WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CAN B H CAN B L 4 3 2 1 SIG 6 7 CAN B L CAN B H AIR RECIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLU/GRN WIRE BLU/RED WIRE BLU/VIO WIRE BLU/YEL WIRE BRN GRY/ WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EVAPORATOR TEMPERATURE SENSOR (LOWER RIGHT SIDE OF HVAC EVAPORATOR ASSEMBLY) FRESH AIR/ RECIRCULATED AIR FLAP SWITCHOVER VALVE FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 12 GAS DIESEL GND (-) 31 GRN WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BRN WIRE GRY/ORG WIRE HOT AT ALL TIMES INTERIOR TEMPERATURE SENSOR (LEFT CENTER OF DASH) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN NCA WIRE NTC (+) NTC (-) ORG/BRN WIRE OUTSIDE TEMPERATURE SENSOR (BEHIND CENTER OF FRONT BUMPER) OVERHEAD CONTROL PANEL CONTROL MODULE (W/ TILTING/SLIDING ROOF) OVERHEAD CONTROL PANEL ELECTRONICS (W/O TILTING/SLIDING ROOF) REAR WINDOW HEATER BUTTON RED WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR REGULATION VALVE RIGHT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (RIGHT FRONT FOOTWELL AREA) RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR (IN RIGHT SIDE OF DASH) SIG SIG SOLID STATE SUN SENSOR (TOP CENTER OF DASH) VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/ORG WIRE VIO/RED WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BRN WIRE YEL WIRE YEL/BRN WIRE YEL/VIO WIRE

18 41 57 41 LUES 2.1L TURBO DIESEL AIR DISTRIBUTION FLAP ACTUATOR MOTOR (LEFT END OF HVAC UNIT) BLK/BLU WIRE BLK/RED WIRE BRN WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR (REAR OF LEFT CYLINDER BANK) DEFROSTER VENT FLAP ACTUATOR MOTOR (UPPER LEFT END OF HVAC UNIT) ENGINE CONTROLS SYSTEM EXCEPT 2.1L TURBO DIESEL FRONT ELECTRICAL PREFUSE BOX (RIGHT REAR OF ENGINE COMPT) FUSE FUSE 158 GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT BLENDING AIR FLAP ACTUATOR (LOWER LEFT SIDE OF HVAC UNIT) LPV ME-SFI (ME) CONTROL MODULE (EXCEPT 2.1L TURBO DIESEL) PTC HEATER BOOSTER ELECTRICAL CONNECTOR PURGE CONTROL VALVE (LEFT FRONT OF ENGINE COMPT) RED WIRE RED/GRN WIRE RED/VIO WIRE RIGHT BLENDING AIR FLAP ACTUATOR (BOTTOM RIGHT CENTER OF HVAC UNIT) TMOT VIO/GRN WIRE VIO/WHT WIRE W/O ECO START/STOP FUNCTION WHT/BRN WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CAN B H CAN B L 30 GND 31 REAR WINDOW HEATER BUTTON 6 7 CAN B L CAN B H AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLU/GRN WIRE BLU/RED WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EMISSIONS SENSOR (RIGHT REAR OF ENGINE COMPT) EVAPORATOR TEMPERATURE SENSOR (LOWER RIGHT SIDE OF HVAC EVAPORATOR ASSEMBLY) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 12 GAS DIESEL GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLU WIRE HOT AT ALL TIMES INTERIOR TEMPERATURE INTERIOR TEMPERATURE SENSOR (LEFT CENTER OF DASH) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (LEFT FRONT FOOTWELL AREA) LEFT SIDE AIR OUTLET TEMPERATURE SENSOR (LEFT SIDE OF DASH) NCA WIRE ORG/BRN WIRE OVERHEAD CONTROL PANEL CONTROL MODULE (W/ TILTING/SLIDING ROOF) OVERHEAD CONTROL PANEL ELECTRONICS (W/O TILTING/SLIDING ROOF) RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR REGULATION VALVE REFRIGERANT LINE) REFRIGERANT PRESSURE SENSOR RIGHT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (RIGHT FRONT FOOTWELL AREA) RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR (RIGHT SIDE OF DASH) SENSOR W/ INTEGRATED FAN SIG SIG LIN GND LIN DATA SOLID STATE SUN SENSOR (TOP CENTER OF DASH) VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/ORG WIRE VIO/WHT WIRE VIO/YEL WIRE WHT/BRN WIRE YEL/BRN WIRE YEL/VIO WIRE

2.1L TURBO DIESEL 57 41 18 41 LUES AC HOUSING, ACTUATOR MOTOR (TOP CENTER OF HVAC UNIT) AIR RECIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK/BLU WIRE BLK/RED WIRE BLOWER MOTOR BLOWER REGULATOR BRN WIRE BRN/GRN WIRE CFG COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR (REAR OF LEFT CYLINDER BANK) ENGINE CONTROLS SYSTEM EXCEPT 2.1L TURBO DIESEL FRONT ELECTRICAL PREFUSE BOX (RIGHT REAR OF ENGINE COMPT) FUSE FUSE 158 FUSE MODULE W/ FUSE/ RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT CENTER AIR OUTLET FLAP ACTUATOR MOTOR (LEFT FRONT OF HVAC UNIT) LEFT DEFROSTER VENT FLAP ACTUATOR MOTOR (UPPER LEFT SIDE OF HVAC UNIT) LEFT DIFFUSE FLAP BLENDING AIR FLAP ACTUATOR (LOWER LEFT SIDE OF HVAC UNIT) LEFT FOOTWELL FLAP ACTUATOR MOTOR (LOWER LEFT SIDE OF HVAC UNIT) LPV ME-SFI (ME) CONTROL MODULE (EXCEPT 2.1L TURBO DIESEL) PTC HEATER BOOSTER ELECTRICAL CONNECTOR PURGE CONTROL VALVE (LEFT FRONT OF ENGINE COMPT) REAR BLEND AIR FLAP ACTUATOR MOTOR (BOTTOM LEFT OF HVAC UNIT) REAR SAM CONTROL RED WIRE RED/GRN WIRE RIGHT BLENDING AIR FLAP ACTUATOR (BOTTOM RIGHT CENTER OF HVAC UNIT) RIGHT CENTER AIR OUTLET FLAP ACTUATOR MOTOR (RIGHT FRONT OF HVAC UNIT) RIGHT DEFROSTER VENT FLAP ACTUATOR MOTOR (UPPER RIGHT SIDE OF HVAC UNIT) RIGHT FOOTWELL FLAP ACTUATOR MOTOR (LOWER RIGHT SIDE OF HVAC UNIT) SIG TMOT VIO/WHT WIRE W/O ECO START/STOP FUNCTION WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CAN B H CAN B L 30 GND 31 REAR WINDOW HEATER BUTTON 6 7 CAN B L CAN B H AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLU/GRN WIRE BLU/RED WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EMISSIONS SENSOR (RIGHT REAR OF ENGINE COMPT) EVAPORATOR TEMPERATURE SENSOR (LOWER RIGHT SIDE OF HVAC EVAPORATOR ASSEMBLY) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 12 GAS DIESEL GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLU WIRE HOT AT ALL TIMES INTERIOR TEMPERATURE INTERIOR TEMPERATURE SENSOR (LEFT CENTER OF DASH) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (LEFT FRONT FOOTWELL AREA) LEFT SIDE AIR OUTLET TEMPERATURE SENSOR (LEFT SIDE OF DASH) NCA WIRE ORG/BRN WIRE OVERHEAD CONTROL PANEL CONTROL MODULE (W/ TILTING/SLIDING ROOF) OVERHEAD CONTROL PANEL ELECTRONICS (W/O TILTING/SLIDING ROOF) RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR REGULATION VALVE REFRIGERANT LINE) REFRIGERANT PRESSURE SENSOR RIGHT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (RIGHT FRONT FOOTWELL AREA) RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR (RIGHT SIDE OF DASH) SENSOR W/ INTEGRATED FAN SIG SIG LIN GND LIN DATA SOLID STATE SUN SENSOR (TOP CENTER OF DASH) VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/ORG WIRE VIO/WHT WIRE VIO/YEL WIRE WHT/BRN WIRE YEL/BRN WIRE YEL/VIO WIRE