Mercedes·C300·2010 Mercedes C300·Wiring
Wiring diagram

2010 Mercedes C300 — power distribution

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Power distribution

A A S RSS EIN RSS AUS RES 150A F E D B C 40A 25A 7.5A 80A 40A 80A 100A 60A 7.5A 20A 150A 70A 100A 40A 40A 30A 30A 15A 200A 80A 400A 125A 60A FRONT ELECTRICAL PREFUSE BOX BATTERY STARTER REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE GENERATOR FRONT ELECTRICAL PREFUSE BOX 32 30 31 27 21 26 25 C8D 9 C7L 2 C128 4 10 C8D C3I 12 5 C12I 2 3 A E A E A E C114 C113 C111 C112 C115 A A E C112 C115 E 7 6 5 4 3 2 1 CA 7 6 4 5 3 2 1 CB CP3 2 1 C1V 2 CP1 CP2 1 C2V C9I 50 47 35 49 4 5 2 C117 C126 C116 3 RED BLK BRN RED RED/YEL BLK RED RED RED RED RED/YEL RED/BLU RED RED RED RED RED RED RED/ GRN BRN RED/ RED/ VIO BLU RED/ GRN RED/ YEL RED/ BLK WHT/ GRN VIO/ BLU RED RED RED RED BRN/BLU RED/GRY RED/BLU BRN/GRN BLK BLK BLK BLK RED RED FUSE 100 FUSE 90 FUSE 102 QUIESCENT CURRENT CUTOUT RELAY RES FUSE 107 FUSE 101 FUSE 105 FUSE 104 FUSE 106 FUSE 103 FUSE 89 FUSE 46 FUSE 61 FUSE 40 FUSE 64 INTERIOR FUSE BOX RES FUSE 128 FUSE 116 FUSE 117 FUSE 126 RES FUSE 108 FUSE 88 RES FUSE 110 RES FUSE 109 FUSE 91 REAR PREFUSE BOX RES FUSE 123 RES FUSE 125 RES FUSE 121 RES FUSE 122 RES FUSE 120 FUSE 119 FUSE 129 FUSE 113 FUSE 114 FUSE 111 RES FUSE 124 FUSE 115 FUSE 112 RES FUSE 135 RES FUSE 131 RES FUSE 130 RES FUSE 132 RES FUSE 133 RES FUSE 134 (AT RIGHT REAR OF ENGINE COMPT) (LEFT SIDE OF TRUNK/CARGO AREA) (RIGHT SIDE OF TRUNK) (BEHIND LEFT END OF DASH) (AT RIGHT REAR OF ENGINE COMPT) (RIGHT SIDE OF LUGGAGE COMPT) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (W/ RADIO), (W/ AUTOMATIC TAILGATE) (IF EQUIPPED) (IF EQUIPPED) (W/ DIGITAL AUDIO BROAD CASTING), (IF EQUIPPED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) (NOT USED) (NOT USED) (NOT USED) (W/ TAXI) (W/ THERMOTRONIC) W7 TO FUSE 108 (DIAGRAM 1 OF 5) BATTERY SENSOR A/C HOUSING TO FUSE 27 (DIAGRAM 5 OF 5) TO FUSE 18 (DIAGRAM 4 OF 5) TO FUSE 16 (DIAGRAM 4 OF 5) TO CIRCUIT 15 RELAY (DIAGRAM 2 OF 5) TO FUSE 87 (DIAGRAM 2 OF 5) INTERIOR PROTECTION & TOW AWAY PROTECTION CONTROL UNIT REAR WINDOW ANTENNA FM ANTENNA AMPLIFIER TAILGATE CONTROL UNIT REAR WINDOW ANTENNA AMPLIFIER 1, DAB BAND III ANTENNA & TV1 & DAB BAND III ANTENNA ALARM SIREN TV2 & KEYLESS GO ANTENNA AMPLIFIER FROM FUSE 103 (DIAGRAM 1 OF 1) FRONT PASSENGER SEAT CONTROL UNIT ADAPTIVE DAMPING SYSTEM CONTROL UNIT DRIVER SEAT CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT COMBUSTION ENGINE & AIR CONDITIONING W/ INTEGRATED CONTROL FAN MOTOR SPECIAL PURPOSE VEHICLE MULTI-FUNCTION CONTROL UNIT REAR BLOWER MOTOR TO FUSE 27 (DIAGRAM 5 OF 5)
L K I H C G G B 15A 7.5A 7.5A 5A 7.5A 7.5A 7.5A 20A 30A 30A 20A 30A 15A 15A 7.5A 30A 15A REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE TAILGATE WINDSHIELD WIPER RELAY REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE FUEL PUMP RELAY MODULE OVERHEAD CONTROL PANEL CONTROL MODULE OVERHEAD CONTROL PANEL ELECTRONICS 3 CG 5 1 2 3 2 1 3 1 C15H 5 4 C11T 3 6 6 7 C3I 9 C3I 13 10 C3I 8 1 C3I 1 2 C13A 5 3 C12I 7 C12I 6 PNK/ YEL YEL PNK/ PNK/ YEL PNK/ YEL GRY/BLU GRY/BLU GRY/BLU GRY/ BLU RED/GRN BRN BLU NCA GRY/ NCA YEL PNK/ RED BRN GRY BLU GRY/ NCA BRN BRN NCA BRN RED/BLU (OR RED/VIO) BLK/YEL RED/BLK RED/GRN RED/BLU RED/BLK RED/GRN RED/GRY RED/WHT RED/YEL RED/GRN (OR PNK/RED) RED/BLU PNK/RED BLK/RED RED/WHT FUSE 38 CIRCUIT 15 RELAY SEAT ADJUSTMENT RELAY RES FUSE 48 FUSE 41 FUSE 39 FUSE 57 FUSE 58 FUSE 56 FUSE 59 FUSE 54 CIRCUIT 15R RELAY (1) FUSE 84 FUSE 87 FUSE 86 FUSE 43 FUSE 60 FUSE 42 FUSE 71 FUSE 83 FUSE 37 FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FRONT VEHICLE INTERIOR POWER OUTLET VEHICLE INTERIOR POWER OUTLET (LEFT SIDE OF TRUNK/CARGO AREA) (LEFT SIDE OF TRUNK/CARGO AREA) (UNDER RIGHT FRONT SEAT) (NOT USED) (W/ TOWING HITCH) (IF EQUIPPED), (W/ CITY ASSIST SYSTEM) (NOT USED) W/O SMOKER PACKAGE W/ SMOKER PACKAGE (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED), (IF EQUIPPED), (IF EQUIPPED) & (IF EQUIPPED) (W/ SMOKER PACKAGE) (W/ NON- SMOKER PACKAGE) (W/ REAR SOCKET) (W/ CAN) (W/O CAN) W19 TO FUSE 42 (DIAGRAM 2 OF 5) FROM FUSE 61 (DIAGRAM 1 OF 1) RIGHT REAR DOOR CONTROL UNIT LEFT REAR DOOR CONTROL UNIT TRAILER RECOGNITION CONTROL MODULE PARKTRONIC CONTROL UNIT LEFT OUTER RADAR SENSOR & FRONT BUMPER TO FUSE 85 (DIAGRAM 3 0F 5) TO FUSE 74 (DIAGRAM 3 0F 5) FROM FUSE 41 (DIAGRAM 2 0F 5) FROM FUSE 46 (DIAGRAM 1 0F 5) FUEL PUMP CONTROL MODULE DRIVER SEAT NECK-PRO HEAD RESTRAINT SOLENOID & FRONT PASSENGER SEAT NECK-PRO HEAD RESTRAINT SOLENOID EMERGENCY CALL SYSTEM CONTROL UNIT MULTICONTOUR SEAT PNEUMATIC PUMP DVD PLAYER SATELLITE DIGITAL AUDIO RADIO (SDAR) CONTROL UNIT SDAR/HIGH DEFINITION TUNER CONTROL UNIT TO FRONT SAM CONTROL W/ FUSE & RELAY MODULE (DIAGRAM 4 OF 5) BACKUP CAMERA VOLTAGE SUPPLY MODULE DIGITAL AUDIO BROADCASTING CONTROL UNIT TO FUSE 76 (DIAGRAM 3 0F 5)
R J I L J R H 40A 20A 25A RES 15A 15A 7.5A 7.5A 7.5A 40A 15A 7.5A 50A 50A 7.5A 5A REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE REAR WINDOW DEFROSTER RELAY 3 2 1 2 C14I 3 C15H 1 6 3 C14I 4 5 7 C11T 2 1 5 2 6 1 2 C2G 1 7 C15H 4 PNK/GRN BRN RED/BLU RED/GRN PNK/GRN RED/GRN PNK/BLK RED/WHT RED/BLU RED RED RED/VIO RED/WHT RED/GRN CIRCUIT 15R RELAY(2) RES FUSE 78 RES FUSE 80 FUSE 68 FUSE 67 FUSE 82 FUSE 79 FUSE 74 FUSE 77 FUSE 81 FUSE 85 FUSE 72 FUSE 76 CARGO AREA SOCKET FUSE 49 FUSE 51 FUSE 50 FUSE 73 FUSE 75 FUSE 69 FUSE 70 (LEFT SIDE OF TRUNK/CARGO AREA) (RIGHT SIDE OF TRUNK) (LEFT SIDE OF TRUNK/CARGO AREA) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (W/ CITY ASSIST SYSTEM) (W/ AUXILIARY JACK) (NOT USED) (NOT USED) (W/ SOUND SYSTEM) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) W7 FROM FUSE 60 (DIAGRAM 2 OF 5) FROM FUSE 84 (DIAGRAM 2 OF 5) TO FUSE 70 (DIAGRAM 3 OF 5) TO FUSE 75 (DIAGRAM 3 OF 5) SOUND SYSTEM AMPLIFIER CONTROL UNIT RADAR SENSORS CONTROL UNIT WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT TV TUNER CONTROL UNIT MEDIA INTERFACE CONTROL UNIT KEYLESS GO CONTROL UNIT FROM VEHICLE INTERIOR POWER OUTLET (DAIGRAM 2 OF 5) FROM FUSE 67 (DIAGRAM 3 0F 5) FROM FUSE 74 (DIAGRAM 3 0F 5) TIRE PRESSURE MONITOR CONTROL UNIT REAR BASS SPEAKER AMPLIFIER RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR
15A K 5A N Q P 0 O M N M 7.5A 10A 10A 30A D E 40A 7.5A 5A 7.5A 7.5A 30A 7.5A 15A 20A 15A FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE CHASSIS CIRCUIT 87 RELAY FAN RELAY MODULE FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE SECONDARY AIR INJECTION RELAY 5 C2I 13 C19I C9G 4 C5C 8 5 C2I 6 C11C 4 3 C14M 6 C1M 2 C15M 4 16S 8S 7 8 6 C5C 10 3 4 C13D 1 1 C5C C3M 6 2 C4I C3M 5 3 C4I 6 C2I C3M 3 6 C4I C14M 7 2 C6I RED/YEL GRY/BLU RED/BLU RED/GRN RED RED/GRY BLK/BLU BLK/BLU NCA RED RED RED RED/BLU RED/GRN RED/BLU RED/VIO RED/BLU RED/BRN RED/BLK RED/BLU RED/VIO BLK/RED BRN/ORG BLK/RED FUSE 31B CIRCUIT 15R RELAY CIRCUIT 15 RELAY RESERVE RELAY FUSE 18 FUSE 16 FUSE 10 FUSE 29 FUSE 30 ENGINE CIRCUIT 87 RELAY FUSE 24 FUSE 23 FUSE 22 FUSE 32 FUSE 15 FUSE 16 FUSE 11 FUSE 17 FUSE 12 FUSE 13 (LEFT REAR OF ENGINE COMPARTMENT) (LEFT REAR OF ENGINE COMPARTMENT) (LEFT REAR OF ENGINE COMPARTMENT) (NOT USED) (IF EQUIPPED) (A/T) (NOT USED) (NOT USED) (NOT USED) (W/ SULEV), (NOT USED) (NOT USED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (W/ 2-ZONE THERMATIC & 3-ZONE THERMOTRONIC) (IF EQUIPPED) TO FUSE 15 (DIAGRAM 4 0F 5) TO ENGINE CIRCUIT 87 RELAY (DIAGRAM 4 0F 5) FROM FUSE 89 (DIAGRAM 1 OF 5) FROM FUSE 105 (DIAGRAM 1 OF 5) WIPER PARK HEATER WIPER MOTOR RIGHT FRONT HEADLAMP UNIT LEFT FRONT HEADLAMP UNIT EXTERIOR LIGHTS SWITCH ELECTRONIC SELECTOR LEVEL MODULE CONTROL MODULE FROM POWER OUTLETS & CIGARETTE LIGHTER (DIAGRAM 2 OF 5) FROM FAN RELAY MODULE (DIAGRAM 4 0F 5) TO SECONDARY AIR INJECTION RELAY (DIAGRAM 4 0F 5) PREMAIR SENSOR CYLINDER 1 IGNITION COIL, CYLINDER 2 IGNITION COIL, CYLINDER 3 IGNITION COIL, RADIO INTERFERENCE SUPPRESSION CAPACITOR 1 HOT FILM MAF SENSOR, RIGHT INTAKE CAMSHAFT HALL SENSOR, RIGHT EXHAUST CAMSHAFT HALL SENSOR, RIGHT INTAKE CAMSHAFT SOLENOID, RIGHT EXHAUST CAMSHAFT SOLENOID, CYLINDER 1 INJECTION VALVE, CYLINDER 2 INJECTION VALVE & CYLINDER 3 INJECTION VALVE LEFT INTAKE CAMSHAFT HALL SENSOR, LEFT EXHAUST CAMSHAFT HALL SENSOR, CYLINDER 4 IGNITION COIL, CYLINDER 5 IGNITION COIL, CYLINDER 6 IGNITION COIL, RADIO INTERFERENCE SUPPRESSION CAPACITOR 2, CYLINDER 4 INJECTION VALVE, CYLINDER 5 INJECTION VALVE, CYLINDER 6 INJECTION VALVE, LEFT INTAKE CAMSHAFT SOLENOID & LEFT EXHAUST CAMSHAFT SOLENOID COOLANT THERMOSTAT, INTAKE MANIFOLD TUMBLE FLAP SWITCHOVER VALVE, INTAKE MANIFOLD SWITCHOVER VALVE, AIR PUMP SWITCHOVER VALVE, HEATING SYSTEM SHUTOFF VALVE, LEFT OXYGEN SENSOR UP STREAM OF CATALYTIC CONVERTER & RIGHT OXYGEN SENSOR UP STREAM OF CATALYTIC CONVERTER ME-SFI (ME) CONTROL MODULE COMBUSTION ENGINE & AIR CONDITIONING W/ INTEGRATED CONTROL FAN MOTOR PURGE CONTROL VALVE & ACTIVATED CHARCOAL FILTER SHUTOFF VALVE TO FUSE 14 (DIAGRAM 5 0F 5) TO FUSE 1 (DIAGRAM 5 0F 5) FROM FUSE 16 (DIAGRAM 4 0F 5) FROM ENGINE CIRCUIT 87 RELAY (DIAGRAM 4 0F 5) AUTOMATIC AIR CONDITIONING CONTROL & OPERATING UNIT STEERING COLUMN MODULE CONTROL UNIT MOBILE PHONE ELECTRICAL CONNECTOR DIAGNOSTIC CONNECTOR AUDIO/ COMAND CONTROL PANEL AUDIO/ COMAND DISPLAY OVERHEAD CONTROL PANEL CONTROL MODULE SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT UPPER CONTROL PANEL CONTROL UNIT PANORAMIC SLIDING ROOF CONTROL MODULE
30Z DATA F S Q P 7.5A 30 UB 20A 30Z CAN-E L CAN-E H CAN-B H CAN-B L DATA 30Z 31 20A 30A 30A 7.5A 40A 25A 7.5A FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE CHASSIS CIRCUIT 87 RELAY ELECTRIC STEERING LOCK CONTROL UNIT AUTOMATIC TRANSMISSION NEUTRAL POSITION SWITCH C12S C11C 2 C5C 10 4 C4I CA 2 1 4 3 5 7 8 6 1 2 CC 10 C10T 3 4 2 CB 1 2 3 4 5 6 7 8 9 10 8 4 C7I 3 1 2 1 7 C2I 9 RED RED RED RED RED/GRN RED/GRN WHT/RED RED BRN BRN BRN WHT/RED BRN/RED GRN/WHT GRN RED/GRN RED RED RED/GRN RED RED RED RED/WHT RED/GRY RED/YEL RED/GRN RED/BRN RED/GRY FUSE 20 FUSE 3 FUSE 1 FUSE 14 FUSE 2 FUSE 27 FUSE 28 FUSE 19 FUSE 26 ELECTRONIC IGNITION SWITCH CONTROL UNIT (LEFT REAR OF ENGINE COMPARTMENT) (LEFT FRONT FOOTWELL) (TOP OF STEERING COLUMN) (NOT USED) (NOT USED) (W/ AUDIO 20 RADIO), (W/ AUDIO 50) W/ REAR BATTERY W/O REAR BATTERY W/O KEYLESS GO W/ KEYLESS GO W15/5 FROM FUSE 16 (DIAGRAM 4 OF 5) FROM FUSE 32 (DIAGRAM 4 OF 5) RADIO RADIO W/ AUTO PILOT SYSTEM INSTRUMENT CLUSTER RIGHT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT COMAND CONTROL UNIT FROM FUSE 101 (DIAGRAM 1 OF 5) FROM FUSE 111 (DIAGRAM 1 OF 5) COMPUTER DATA LINES SYSTEM