Mercedes·C300·2015 Mercedes C300·Wiring
Wiring diagram

2015 Mercedes C300 — power distribution

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Power distribution

60A N/A G 200A N/A 60A K N/A N/A 125A 100A 40A 125A 150A F 40A N/A 80A 40A 125A 50A 400A M D N J 150A C P 230V AC1 31 230V AC1 15 ENABLE SW (+) 30 230V AC2 ON-BOARD ELECTRICAL SYSTEM BATTERY FRONT SAM CONTROL UNIT 2 X58/45-C1 3 X58/45-C1 2 C4 C3 1 C1 C3 C4 C9 C6 C7 C3 C8 C5 C13 C10 C1 C8 C9 C6 C13 C12 C11 C1 RBA-1 2 1 3 4 1 3 4 2 C7 1 26 6 5 4 2 3 4 5 6 8 7 NCA RED PNK/GRN ORG/BLU BRN RED RED BLK RED BLK RED RED RED RED RED BLK RED RED RED BLK RED RED ORG/BLK PNK/GRY PNK/GRN BLK/WHT RED/YEL BLK/YEL RED/WHT RED ORG/BLK PNK/GRN ORG/BLU BRN PNK/GRN PNK/GRY RED ENGINE COMPARTMENT PREFUSE BOX FUSE 7 FUSE 6 FUSE C3/1 FUSE 8 FUSE 5 FUSE 1 FUSE 10 FUSE 3 FUSE C3/2 FUSE 9 FUSE 13 CIRCUIT 30 TERMINAL BLOCK VEHICLE INTERIOR PREFUSE BOX QUIESCENT CURRENT CUTOUT RELAY FUSE 6 FUSE 12 FUSE 3 FUSE 13 FUSE 11 FUSE 4 FUSE 9 FUSE 8 FUSE 7 DC/AC CONVERTER CONTROL UNIT 230V SOCKET (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (RIGHT REAR OF ENGINE COMPT) (LEFT SIDE OF RIGHT FRONT FOOTWELL) (RIGHT SIDE OF LUGGAGE COMPT) (RIGHT SIDE OF LUGGAGE COMPT) W7 TO ENGINE FUSE & RELAY MODULE (DIAGRAM 2 OF 6) FAN MOTOR ELECTRICAL POWER STEERING CONTROL UNIT ALTERNATOR ELECTRONIC STABILITY PROGRAM CONTROL UNIT TO LEFT FUSE & RELAY MODULE (DIAGRAM 2 OF 6) TO ENGINE FUSE & RELAY MODULE (DIAGRAM 2 OF 6) BATTERY SENSOR VOLTAGE DIP LIMITER AC HOUSING TO REAR FUSE & RELAY MODULE (DIAGRAM 4 OF 6) TO INSTRUMENT PANEL FUSE BOX (DIAGRAM 6 OF 6) TO INSTRUMENT PANEL FUSE BOX (DIAGRAM 6 OF 6) TO REAR FUSE & RELAY MODULE (DIAGRAM 3 OF 6) FROM REAR FUSE & RELAY MODULE (DIAGRAM 3 OF 6) FROM REAR FUSE & RELAY MODULE (DIAGRAM 4 OF 6)
5A 30A (+) (-) 30 87 30 20A 15A 20A 20A 30A 30 30 30A 5A 5A 5A N/A N/A 5A N/A 5A 30 F 30 K 30A 5A 25A 5A 15A 5A 7.5A 5A 7.5A H 5A 60A 50A 87 30 (+) (-) N/A G 7.5A 5A 7.5A 7.5A FRONT SAM CONTROL UNIT ENGINE FUSE & RELAY MODULE AIRMATIC RELAY TRANSMISSION OIL PUMP RELAY WIPER PARK POSITION HEATER RELAY VACUUM PUMP RELAY (+) FANFARE HORN RELAY CIRCUIT 87M RELAY CPC RELAY FRONT SAM CONTROL UNIT S8 7 A5 X S7 8 6 4 S4 5 2 27 MR2 4 S8 4 S8 1 S8 S7 5 6 S8 10 9 8 5 S4 1 S8 3 E1 X E2 S6 X A3 S2 7 S1 4 6 5 2 1 X A8 X A2 X A1 K-F X S5 23 RBA-1 3 E1 A6 X X A7 X S4 RED/YEL RED/YEL (OR RED/BLK) (OR RED/BLU) RED/WHT RED RED/BLU RED/YEL PNK/RED VIO/WHT VIO/WHT YEL/RED VIO/WHT ORG/BLU BLK/RED PNK/RED PNK/RED RED RED RED RED/BLK RED/BLK RED/WHT RED/YEL RED/GRN RED/GRN RED RED RED BLK/VIO RED/YEL RED BLK PNK/RED PNK/GRN LEFT FUSE & RELAY MODULE FUSE 210 FUSE 207 FUSE 205 FUSE 220 FUSE 206 FUSE 208 FUSE 204 FUSE 209 FUSE 211 FUSE 214 CIRCUIT 15R RELAY FUSE 200 FUSE 213 FUSE 218 FUSE 216 FUSE 202 FUSE 215 FUSE 201 FUSE 219 STARTER CIRCUIT 50 RELAY STARTER TERMINAL 15 RELAY FUSE 129 FUSE 125 FUSE 126 FUSE 128 FUSE 121 FUSE 123 FUSE 113 FUSE 127 FUSE 111 FUSE 124 ENGINE COMPARTMENT TERMINAL 15 RELAY FUSE 122 FUSE 110 FUSE 109 FUSE 117 FUSE 108 (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (LEFT END OF DASH) (LEFT REAR OF ENGINE COMPT) LEFT FRONT MULTICONTOUR SEAT CONTROL UNIT FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 6) STEERING COLUMN MODULE CONTROL UNIT INSTRUMENT CLUSTER CLIMATE CONTROL UNIT FRONT CLIMATE CONTROL OPERATING UNIT & UPPER CONTROL PANEL CONTROL UNIT TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 5 OF 6) DIAGNOSTIC CONNECTOR ANALOG CLOCK WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT GLOW BOX LAMP & SAM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT ALARM SIREN ELECTRONIC STABILITY PROGRAM CONTROL UNIT FRONT SAM CONTROL UNIT FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 6) VOLTAGE DIP LIMITER STARTER FRONT SAM CONTROL UNIT LEFT FRONT LAMP UNIT, EXTERIOR LIGHT SWITCH & RIGHT FRONT LAMP UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ME-SFI (ME) CONTROL UNIT & DRIVETRAIN CONTROL UNIT FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 6) LEFT FRONT LAMP UNIT & RIGHT FRONT LAMP UNIT LEFT FRONT LAMP UNIT & RIGHT FRONT LAMP UNIT CPC RELAY WIPER MOTOR
1 2 1 2 C P B 10A 40A 40A 5A A N/A 15A 15A N/A 30A 30A 85 86 87 30 86 85 30 87 86 15 30 85 30A 30 30 5A 25A 15A 25A 15A 25A 15A REAR FUSE & RELAY MODULE REAR SAM CONTROL UNIT BACKUP RELAY HEATED REAR WINDOW RELAY REAR SAM CONTROL UNIT X58/45-C1 1 8 S14 19 E1 S10 2 3 2 S13 S2 2 S10 6 4 2 1 3 3 1 2 2 1 3 3 S10 1 2 3 S1 6 S9 16 6 S11 S2 1 S8 5 2 4 3 1 5 9 HR 18 23 S14 10 24 HR RED RED/BLU RED RED RED RED RED GRY/BLU BRN RED/BLK RED/BLK RED/BLK NCA NCA NCA NCA BRN GRY/BLU GRY/BLU BRN RED/BLK RED/GRN RED/GRN RED BLK RED RED/WHT RED/BLU RED RED/GRY RED/YEL RED/GRY PNK/RED RED/BLK 1ST SEAT ROW/TRUNK REFRIGERATOR BOX & POWER OUTLET RELAY VEHICLE INTERIOR TERMINAL 15 RELAY FUSE 442 FUSE 438 FUSE 450 FUSE 434 FUSE 437 FUSE 433 FUSE 435 FUSE 436 FUSE 444 FUSE 446 FUSE 447 RIGHT REAR CENTER CONSOLE 12V SOCKET VEHICLE INTERIOR POWER OUTLET FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION 2ND SEAT ROW CUP HOLDER & POWER OUTLET RELAY FUSE 448 FUSE 410 FUSE 462 FUSE 464 FUSE 405 FUSE 404 FUSE 403 (NOT USED) W/ SMOKER PACKAGE W/O SMOKER PACKAGE (NOT USED) (IF EQUIPPED) (UNDER RIGHT SIDE OF LUGGAGE COMPT FLOOR) (UNDER RIGHT SIDE OF CENTER CONSOLE) (UNDER RIGHT SIDE OF CENTER CONSOLE) (UNDER RIGHT SIDE OF CENTER CONSOLE) W12/1 W12/1 W12/1 TO FUSE 455 (DIAGRAM 4 OF 6) INTERIOR LIGHTS SYSTEM FUEL PUMP CONTROL UNIT TRAILER RECOGNITION CONTROL UNIT FROM VEHICLE INTERIOR PREFUSE BOX (DIAGRAM 1 OF 6) TO DC/DC CONVERTER CONTROL UNIT (DIAGRAM 1 OF 6) INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM TO FUSE 424 (DIAGRAM 4 OF 6) DRIVER SEAT PARTIALLY ELECTRIC SEAT ADJUSTMENT SWITCH SOUND SYSTEM AMPLIFIER CONTROL UNIT PARK PAWL CAPACITOR TRUNK LID CONTROL UNIT & TAILGATE CONTROL UNIT STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER FRONT PASSENGER SEAT PARTIALLY ELECTRIC SEAT ADJUSTMENT SWITCH
A N J 5A 5A 5A E 5A 5A 7.5A 5A 5A N/A N/A N/A N/A N/A 30A N/A N/A 5A N/A 30A 30A 10A 5A 40A 40A 30A 30A 30A B 5A 5A 7.5A 5A 5A 5A 5A E 5A REAR FUSE & RELAY MODULE REAR FUSE & RELAY MODULE E2 S4 6 2 1 S3 3 S3 4 2 5 S4 4 6 4 3 S5 2 S6 1 4 S9 1 S5 1 S5 4 S12 S2 3 4 S2 6 2 S12 1 5 S13 1 S2 5 1 1 S19 4 S11 3 2 5 6 S12 S11 1 1 5 RED RED/BLK RED/BLK RED RED (OR RED/YEL) RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED RED RED RED RED RED RED RED RED RED/BLK RED/BLU RED/BLU RED BRN/PNK RED/GRN PNK/GRN RED RED/BLK FUSE 455 FUSE 452 FUSE 451 FUSE 453 FUSE 456 FUSE 454 FUSE 407 FUSE 460 FUSE 424 FUSE 466 FUSE 428 FUSE 426 FUSE 443 FUSE 461 FUSE 427 FUSE 465 FUSE 408 FUSE 406 FUSE 411 FUSE 417 FUSE 423 FUSE 413 FUSE 418 FUSE 422 FUSE 430 FUSE 441 FUSE 458 FUSE 409 FUSE 429 FUSE 440 FUSE 415 FUSE 416 FUSE 419 FUSE 414 FUSE 420 (IF EQUIPPED) (W/O DISTRONIC PLUS) (W/ DISTRONIC PLUS) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (UNDER RIGHT SIDE OF LUGGAGE COMPT FLOOR) (UNDER RIGHT SIDE OF LUGGAGE COMPT FLOOR) FROM VEHICLE INTERIOR TERMINAL 15 RELAY (DIAGRAM 3 OF 6) FUEL PUMP CONTROL UNIT FRONT LONG-RANGE RADAR SENSOR COLLISION PREVENTION ASSIST CONTROLLER UNIT FULLY INTEGRATED TRANSMISSION CONTROL CONTROL UNIT RIGHT OUTER REAR BUMPER RADAR SENSOR, LEFT OUTER REAR BUMPER RADAR SENSOR & CENTER REAR BUMPER RADAR SENSOR TO DC/DC CONVERTER CONTROL UNIT (DIAGRAM 1 OF 6) LEFT FRONT BUMPER RADAR SENSOR & RIGHT FRONT BUMPER RADAR SENSOR DISTRONIC ELECTRIC CONTROLLER UNIT FROM FUSE 448 (DIAGRAM 3 OF 6) FM 1, AM, CL [ZV] & KEYLESS GO ANTENNA AMPLIFIER KEYLESS-GO CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT RIGHT REAR DOOR CONTROL UNIT LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR MULTICONTOUR SEAT PNEUMATIC PUMP REAR SAM CONTROL UNIT FROM FUSE 415 (DIAGRAM 4 OF 6) REAR SEAT HEATERS CONTROL UNIT REAR SWITCHING MODULE SOUND SYSTEM AMPLIFIER CONTROL UNIT MULTICONTOUR SEAT PNEUMATIC PUMP BACKUP CAMERA REAR SEAT HEATERS CONTROL UNIT TRUNK LID CONTROL UNIT 360 DEGREE CAMERA CONTROL UNIT TO FUSE 418 (DIAGRAM 4 OF 6) DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT TUNER UNIT CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/COMPENSATOR & MOBILE PHONE CONTACT PLATE FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT FROM VEHICLE INTERIOR PREFUSE BOX (DIAGRAM 1 OF 6) CAMERA COVER CONTROL UNIT & PERFUME ATOMIZER GENERATOR
H 31 CAN-PER L CAN-PER H FR 1 BP FR 4 BP FR 3 BP CAN-B L CAN-B H CAN-D H CAN-D L 30Z FR 4 BM FR 1 BM FR 2 BM FR 3 BM 30B CAN-HMI H CAN-HMI L FR 5 BM FR 5 BP FR 4 BP ISM HF SIG SIG AIRMATIC CONTROL UNIT PARK PAWL CAPACITOR FULLY INTEGRATED TRANSMISSION CONTROL UNIT STEREO MULTIFUNCTION CAMERA DIRECT SELECT INTELLIGENT SERVO MODULE RADAR SENSORS CONTROL UNIT DISTRONIC ELECTRIC CONTROLLER UNIT STEERING COLUMN MODULE CONTROL UNIT DRIVETRAIN CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT FM 1, AM, CL (ZV) & KEYLESS GO ANTENNA AMPLIFIER X18-C3 1 3 3 3 16 C1 15 19 18 X18/35-C2 17 16 2 3 5 6 C1 11 10 X18-C3 C1 3 2 15 9 X35/1-C1 X18/35-C1 3 C3 X18-C1 13 C1 3 40 39 38 37 36 35 30 33 32 31 34 25 28 27 26 29 24 23 21 22 11 12 13 14 15 17 16 18 19 20 10 7 8 9 3 2 6 5 4 1 X18-C1 17 16 10 26 A 6 7 C1 RED/BLU YEL YEL YEL RED/BLU PNK GRN GRN PNK PNK GRN PNK GRN GRN PNK GRN PNK GRN PNK YEL YEL YEL BLK BLK YEL GRN BRN YEL/WHT PNK PNK PNK PNK BLK YEL YEL RED/BLU RED/GRN GRN GRN GRN GRN BRN GRY GRN GRN/WHT BRN/RED GRY/WHT PNK GRN PNK PNK GRN GRN PNK ELECTRONIC IGNITION SWITCH CONTROL UNIT (W/ ECO START/STOP FUNCTION) (IF EQUIPPED) (W/ ACTIVE LANE KEEPING ASSIST) W/ 4MATIC W/O 4MATIC (W/ AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS, W/ DISTRONIC PLUS & W/ AIRMATIC) (W/ AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS) (IF EQUIPPED) (LEFT KICK PANEL) W34 COMPUTER DATA LINES SYSTEM FROM LEFT FUSE & RELAY MODULE (DIAGRAM 2 OF 6) COMPUTER DATA LINES SYSTEM
25A 20A 5A 7.5A 7.5A 7.5A 7.5A N/A N/A 5A 10A 30A 10A 10A 20A 30A 30A 30A M L 7.5A 5A 5A 5A 5A 5A 7.5A 5A 5A 20A 5A 30A 30A 7.5A D 5A L 7.5A INSTRUMENT PANEL FUSE BOX INSTRUMENT PANEL FUSE BOX 4 11 5 MF3 1 5 4 MF1 3 C30 16 8 12 C30 5 11 9 4 3 2 6 E1 15 4 MF2 MF2 2 3 1 2 3 6 1 C30G 7 6 2 1 MF1 6 4 E2 2 5 RED/WHT RED/WHT RED/WHT RED BLK RED/WHT RED/VIO RED RED/WHT RED/BLU RED/GRN RED RED RED/WHT RED RED/GRN RED RED RED RED/WHT RED RED/WHT RED RED/YEL RED/WHT RED/GRN RED/WHT RED RED RED/WHT RED RED/YEL RED RED/YEL RED FUSE 304 FUSE 310 FUSE 302 FUSE 303 FUSE 311 FUSE 312 FUSE 308 FUSE 315 FUSE 316 FUSE 309 FUSE 328 FUSE 324 FUSE 306 FUSE 305 FUSE 326 FUSE 327 FUSE 337 FUSE 336 FUSE 341 FUSE 334 FUSE 339 FUSE 338 FUSE 333 FUSE 340 FUSE 330 FUSE 322 FUSE 317 FUSE 331 FUSE 329 FUSE 323 FUSE 325 FUSE 332 FUSE 320 FUSE 318 (NOT USED) (W/ FULLY ELECTRIC DRIVER SEAT ADJUSTMENT W/O MEMORY W/O ELECTRIC HEAD RESTRAINT ADJUSTMENT & MEMORY PACKAGE) (NOT USED) (IF EQUIPPED) (IF EQUIPPED) (RADIO W/ USB INTERFACE NTG5 (AUDIO 20)) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (RIGHT KICK PANEL) (RIGHT KICK PANEL) FROM VEHICLE INTERIOR PREFUSE BOX (DIAGRAM 1 OF 6) RIGHT FRONT MULTICONTOUR SEAT CONTROL UNIT REAR BLOWER MOTOR EMERGENCY CALL SYSTEM CONTROL UNIT LEFT REAR DOOR CONTROL UNIT OVERHEAD CONTROL PANEL CONTROL UNIT DRIVETRAIN CONTROL UNIT & ME-SFI (ME) CONTROL UNIT DIRECT SELECT INTELLIGENT SERVO MODULE SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT RIGHT FRONT DOOR CONTROL UNIT FROM FUSE 325 (DIAGRAM 6 OF 6) DRIVER SEAT CONTROL UNIT & FRONT PASSENGER SEAT CONTROL UNIT DRIVER SEAT CONTROL UNIT DRIVER SEAT CONTROL UNIT & FRONT PASSENGER SEAT CONTROL UNIT AUDIO/COMAND DISPLAY DRIVER SEAT CONTROL UNIT & FRONT PASSENGER SEAT HEATER CONTROL UNIT OVERHEAD CONTROL PANEL CONTROL UNIT & RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS FROM VEHICLE INTERIOR PREFUSE BOX (DIAGRAM 1 OF 6) TIRE PRESSURE MONITOR CONTROL UNIT HEAD-UP DISPLAY FRONT SAM CONTROL UNIT RADAR SENSORS CONTROL UNIT MULTIMEDIA CONNECTION UNIT REAR CLIMATE CONTROL OPERATING UNIT DRIVER-SIDE INSTRUMENT PANEL BUTTON GROUP TO FUSE 324 (DIAGRAM 6 OF 6) AUDIO/COMAND CONTROL PANEL RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR STATIONARY HEATER UNIT STEERING COLUMN MODULE CONTROL UNIT SLIDING ROOF CONTROL MODULE MONO MULTI-FUNCTION CAMERA STEREO MULTI-FUNCTION CAMERA PARKING SYSTEM CONTROL UNIT AIRMATIC CONTROL UNIT HEAD UNIT PANORAMIC SLIDING ROOF CONTROL MODULE TOUCHPAD