Mercedes-Benz E-class W212/S212/C207/A207 (2009-2013) fuse 21 Wiring diagrams

4 17 18 30 CAN B L CAN B H ANTILOCK BRAKE SYSTEM INDICATOR LAMP BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE FLUID, PARKING BRAKE WARNING LAMP BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE SAM CONTROL MODULE ELECTRONIC STABILITY PROGRAM WARNING LAMP FUSE 1 FUSE 14 FUSE 20 FUSE 21 FUSE 28 WITH FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INSTRUMENT CLUSTER PARKING BRAKE INDICATOR SWITCH PNK/BLU WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE SERVICE BRAKE INDICATOR LAMP SPEED-SENSITIVE POWER STEERING SOLENOID VALVE (IF EQUIPPED) VIO WIRE VIO/GRY WIRE VIO/WHT WIRE YAW RATE, LATERAL, LONGITUDINAL ACCELERATION SENSOR

4 17 18 30 CAN B L CAN B H ANTILOCK BRAKE SYSTEM INDICATOR LAMP BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE FLUID, PARKING BRAKE WARNING LAMP BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE SAM CONTROL MODULE ELECTRONIC STABILITY PROGRAM WARNING LAMP FUSE 1 FUSE 14 FUSE 20 FUSE 21 FUSE 28 WITH FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INSTRUMENT CLUSTER PARKING BRAKE INDICATOR SWITCH PNK/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE SERVICE BRAKE INDICATOR LAMP SPEED-SENSITIVE POWER STEERING SOLENOID VALVE (IF EQUIPPED) VIO WIRE VIO/GRY WIRE VIO/WHT WIRE YAW RATE, LATERAL, LONGITUDINAL ACCELERATION SENSOR

ANTILOCK BRAKE SYSTEM INDICATOR LAMP BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE FLUID, PARKING BRAKE WARNING LAMP BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SIDE SAM CONTROL MODULE ELECTRONIC STABILITY PROGRAM WARNING LAMP FUSE FUSE 20 FUSE 14 FUSE 21 FUSE 28 WITH FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED INSTRUMENT CLUSTER MIRROR TAXIMETER (IF EQUIPPED) NAVIGATION PROCESSOR (W/ EXTERNAL NAVIGATION) (LEFT SIDE OF TRUNK) NCA WIRE ORG/BLU WIRE ORG/GRN WIRE PARKING BRAKE INDICATOR SWITCH RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT BRAKE WEAR RIGHT REAR BRAKE WEAR SENSOR SENSOR SERVICE BRAKE INDICATOR LAMP SPEED-SENSITIVE POWER STEERING SOLENOID VALVE (IF EQUIPPED) YAW RATE, LATERAL, LONGITUDINAL ACCELERATION SENSOR

ANTILOCK BRAKE SYSTEM INDICATOR LAMP BLK WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE FLUID, PARKING BRAKE WARNING LAMP BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SIDE SAM CONTROL MODULE ELECTRONIC STABILITY PROGRAM WARNING LAMP FUSE 1 FUSE 20 FUSE 14 FUSE 21 FUSE 28 WITH FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INDICATOR SWITCH (ON PARKING BRAKE ASSEMBLY) INSTRUMENT CLUSTER MIRROR TAXIMETER (IF EQUIPPED) NAVIGATION PROCESSOR (W/ EXTERNAL NAVIGATION) (LEFT SIDE OF TRUNK) NCA WIRE ORG/BLU WIRE ORG/GRN WIRE PARKING BRAKE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT BRAKE WEAR SENSOR RIGHT REAR BRAKE WEAR SENSOR SERVICE BRAKE INDICATOR LAMP SPEED-SENSITIVE POWER STEERING SOLENOID VALVE (IF EQUIPPED) VIO WIRE VIO/WHT WIRE YAW RATE, LATERAL, LONGITUDINAL ACCELERATION SENSOR

1 2 CAN B L CAN B H 1 7 LIN 1 10 9 CAN B L CAN B H 12 13 CAN E L CAN E H 9 10 (+) 31 ACOUSTIC TURN SIGNAL LIGHT FUNCTION CHECK ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR ANTI-THEFT ALARM SYSTEM INDICATOR LAMP BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM CORNERING ILLUMINATION DRIVER SIDE SAM CONTROL MODULE W/ FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FRONT FOG LAMP BUTTON FUSE 18 (LEFT REAR OF ENGINE COMPT) FUSE 21 FUSE 5 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/PNK WIRE GRY/WHT WIRE GRY/YEL WIRE HAZARD WARNING FLASHER SWITCH HOT AT ALL TIMES HOT W/ CIRCUIT HOT W/ CIRCUIT 15 RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL SWITCH GROUP LAMP CONTROL UNIT LEFT FRONT DOOR CONTROL MODULE (IN DRIVER'S DOOR) LEFT FRONT LAMP UNIT LEFT OUTSIDE MIRROR LEFT TURN SIGNAL IND LIGHT LEFT XENON LIN 1 NCA WIRE PNK PNK WIRE PNK WIRE PNK/BLU WIRE PNK/RED WIRE REAR FOG LIGHT BUTTON RED WIRE RIGHT FRONT DOOR CONTROL MODULE (RIGHT FRONT DOOR) RIGHT OUTSIDE MIRROR RIGHT TURN SIGNAL IND LIGHT SOLID STATE STANDING/ PARKING LAMP SWITCH ILLUMINATION TURN SIGNAL LAMP TURN STANDING/ PARKING LAMP SIGNAL LAMP UPPER CONTROL PANEL CONTROL UNIT W/ XENON HEADLAMPS W/O XENON HEADLAMPS WHT WIRE YEL WIRE

1 7 LIN 1 10 9 CAN B L CAN B H 12 13 COMPUTER DATA LINES SYSTEM CAN E L CAN E H ACOUSTIC TURN SIGNAL LIGHT FUNCTION CHECK ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) EXTERIOR LIGHTS SWITCH FRONT FOG LAMP BUTTON FUSE 18 FUSE 21 FUSE 5 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HAZARD WARNING FLASHER SWITCH HOT AT ALL TIMES HOT W/ CIRCUIT HOT W/ CIRCUIT 15 RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL SWITCH GROUP LEFT FRONT LAMP UNIT LEFT TURN SIGNAL IND LIGHT LIN 1 NIGHT VIEW ASSIST BUTTON (IF EQUIPPED) ORG/ WIRE REAR FOG LIGHT BUTTON RED WIRE RIGHT TURN SIGNAL IND LIGHT SOLID STATE STANDING/ PARKING LAMP SWITCH ILLUMINATION TRANSMISSIONS SYSTEM TURN SIGNAL LAMP W/ NETWORKED EXTERIOR LIGHTS SWITCH W/O NETWORKED EXTERIOR LIGHTS SWITCH W/ XENON HEADLAMPS W/O XENON HEADLAMPS WHT WIRE YEL WIRE YEL/VIO WIRE YEL/WHT WIRE

AUDIO/ COMAND DISPLAY (IF EQUIPPED) AUDIO/ MOBILE COMAND PHONE CONTROL ELECTRICAL PANEL CONNECTOR (IF EQUIPPED) BLK/BLU WIRE BLK/RED WIRE BLU WIRE BRN WIRE BRN/ORG WIRE CIRCUIT CIRCUIT 15 RELAY DRIVER SIDE SAM CONTROL MODULE W/ FUSE/RELAY MODULE (LEFT REAR OF ENGINE COMPT) ELECTRONIC SELECTOR LEVEL MODULE CONTROL UNIT (A/T) ENGINE CIRCUIT 87 RELAY EXTERIOR LIGHT SWITCH EXTERIOR LIGHTS SWITCH FANFARE HORN RELAY FROM ENGINE CIRCUIT 87 RELAY (DIAGRAM FROM FANFARE HORN RELAY (DIAGRAM FROM FRONT PREFUSE (DIAGRAM 1 OF 5) FROM FUSE 18 (DIAGRAM FROM POWER OUTLETS, CIGARETTE LIGHTER (DIAGRAM 2 OF 5) FRONT PASSENGER SEAT OCCUPIED RECOGNITION, ACSR (IF EQUIPPED) FUSE FUSE 10 FUSE 9 FUSE 21 FUSE 24 FUSE 25 FUSE 30 FUSE 29 FUSE 5 FUSE 7 FUSE 6 FUSE FUSE GLOVE BOX LAMP/ SWITCH GLOVE BOX SOCKET (IF EQUIPPED) GRY/BLU WIRE LEFT FRONT LAMP UNIT LEFT INTAKE CAMSHAFT SOLENOID, LEFT EXHAUST CAMSHAFT SOLENOID ME-SFI (ME) CONTROL UNIT NCA WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/RED WIRE PNK/YEL WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT SECONDARY AIR INJECTION RELAY STARTER CIRCUIT 50 RELAY STEERING COLUMN MODULE CONTROL UNIT MULTI- FUNCTION CAMERA (IF EQUIPPED) STOP LAMP SWITCH TO CHASSIS CIRCUIT 87 RELAY (DIAGRAM TO ENGINE CIRCUIT 87 RELAY TO FUSE 1 (DIAGRAM TO FUSE 14 (DIAGRAM TO FUSE 15 (DIAGRAM TO SECONDARY AIR INJECTION RELAY WIPER MOTOR WIPER PARK HEATER (IF EQUIPPED) WIPER PARK POSITION HEATER RELAY

AUDIO/ COMAND DISPLAY AUDIO/COMAND CONTROL PANEL (IF EQUIPPED) AUTOMATIC TRANSMISSION MODE BUTTON BACKUP RELAY BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/VIO WIRE BRN WIRE CIRCUIT CIRCUIT 15 RELAY COOLENT THERMOSTAT HEATING ELEMENT, PTC HEATER BOOSTER DRIVER SIDE SAM CONTROL MODULE W/ FUSE/RELAY MODULE (LEFT REAR OF ENGINE COMPT) ELECTRONIC SELECTOR LEVEL MODULE CONTROL UNIT (IF EQUIPPED) ENGINE CIRCUIT 87 RELAY EXCEPT 3.0L TURBO DIESEL EXTERIOR LIGHT SWITCH (IF EQUIPPED) EXTERIOR LIGHTS SWITCH (IF EQUIPPED) FANFARE HORN RELAY FROM FROM DRIVER SIDE SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (DIAGRAM 4 OF 5) FROM ENGINE FUSE CIRCUIT 87 RELAY (DIAGRAM FROM FRONT PREFUSE (DIAGRAM 1 OF 5) FROM REAR SAM CONTROL MODULE W/ FUSE/RELAY MODULE FUSE FUSE 10 FUSE 21 FUSE 24 FUSE 25 FUSE 30 FUSE 29 FUSE 4 FUSE 5 FUSE 7 FUSE 6 FUSE 9 FUSE FUSE GLOVE BOX LAMP/ SWITCH GLOVE BOX SOCKET (IF EQUIPPED) GRY/BLU WIRE INSTRUMENT PANEL SWITCH GROUP LEFT FRONT LAMP RIGHT UNIT FRONT LAMP UNIT ME-SFI (ME) CONTROL UNIT PNK/BLU WIRE PNK/RED WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SECONDARY AIR INJECTION RELAY STARTER CIRCUIT 50 RELAY STOP LAMP SWITCH (W/ ESP BASIC, ESP PREMIUM) SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT TO CHASSIS CIRCUIT 87 RELAY (DIAGRAM TO ENGINE CIRCUIT 87 RELAY TO FUSE 1, TO FUSE 14 (DIAGRAM TO FUSE 15 TO SECONDARY AIR INJECTION RELAY TRANSMISSION OIL AUXILIARY PUMP CONTROL UNIT WHT RED/ WIRE WIPER MOTOR WIPER PARK HEATER (IF EQUIPPED) WIPER PARK POSITION HEATER RELAY YEL/BLK WIRE

1 2 CAN-C H CAN-C L 12 13 CAN E L CAN E H 31 CAN C L CAN C H 31 SIG 4 8 3 24 37 30 37 19 25 40 BLS_L BLS_H BLS_M CAN E L CAN E H AUTOMATIC TRANSMISSION TRANSMISSION MODE BUTTON BASE PREMIUM BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE CAN C L CAN C H CAN-D H CAN-D L COMPUTER DATA LINES SYSTEM COUPE D- D+ DRIVER SIDE SAM CONTROL MODULE W/ FUSE/RELAY MODULE (LEFT REAR OF ENGINE COMPT) ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE (CENTER CONSOLE) ELECTRONIC TRANSMISSION CONTROL CONTROL UNIT (SEDAN) FUSE 16 FUSE 21 GEAR INDICATOR SENSOR GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT W/ CIRCUIT HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER NCA WIRE ORG/BRN WIRE PARKING BRAKE INDICATOR SWITCH (ON PARKING BRAKE ASSEMBLY) PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/WHT WIRE RED WIRE RED/BLU WIRE SELECTOR LEVER POSITION R, P LOCKING SOLENOID SHIFT GATE SYMBOL ILLUMINATION SIG STOPLIGHT SWITCH (LEFT FRONT UPPER FOOTWELL) WHT WIRE WHT/GRN WIRE YEL WIRE

15 R ADBLUE CONTROL UNIT (REAR CARGO AREA) ADBLUE FUSE BLOCK ADBLUE METERING VALVE BLK/VIO WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE CAN I H CAN I L COMPUTER DATA COMPUTER DATA LINES SYSTEM DRIVER SIDE SAM CONTROL MODULE W/ FUSE/RELAY MODULE (LEFT REAR OF ENGINE COMPT) FRONT PREFUSE (RIGHT FRONT FOOTWELL) FUSE 163 FUSE 19 FUSE 20 FUSE 22 FUSE 21 FUSE 6 FUSE 90 GRN/WHT WIRE GRY/BLU WIRE GRY/WHT WIRE HOT W/ CIRCUIT 15 RELAY ENERGIZED HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LINES SYSTEM NOX SENSOR DOWNSTREAM OF DIESEL PARTICULATE FILTER NOX SENSOR DOWNSTREAM OF SCR CATALYTIC CONVERTER PNK WIRE PNK/BLK WIRE PNK/RED WIRE PNK/WHT WIRE REAR SAM CONTROL MODULE W/ FUSE/RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SCR SIG WHT WIRE YEL/RED WIRE