Car Wiring Diagrams for Power distribution circuit for Mercedes-Benz CLS-class C257 (2017-2021)

AC HOUSING, BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU WIRE BRN WIRE CIRCUIT 30 TERMINAL BLOCK DC/AC CONVERTER CONTROL UNIT ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FAN MOTOR FROM REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) FRONT SAM CONTROL UNIT FSS FULLY INTEGRATED TRANSMISSION CONTROL ELECTRIC CONTROLLER UNIT FUSE 1 FUSE 10 FUSE 13 FUSE 2 FUSE 3 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 MPAC U MPAC V N/A ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE PTC HEATER BOOSTER RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT (OR RED) WIRE RED/WHT WIRE RED/YEL WIRE SENS SENS GND TO DC\DC CONVERTER CONTROL UNIT (DIAGRAM 2 OF 8) TO DRIVER-SIDE FUSE, RELAY MODULE (DIAGRAM 2 OF 8) TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 4 OF 8) TO ENGINE FUSE, RELAY MODULE (DIAGRAM 7 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 5 OF 8) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 8 OF 8) TO REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 8) VEHICLE INTERIOR PREFUSE BOX W/ REAR INDIVIDUAL SEAT WINDSHIELD HEATER CONTROL UNIT

ANALOG CLOCK AUDIO/ COMMAND DISPLAY BACKUP RELAY BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CLIMATE CONTROL OPERATING UNIT CLIMATE CONTROL UNIT COMPUTER DATA LINES SYSTEM DC/DC CONVERTER CONTROL UNIT DIGITAL INSTRUMENT CLUSTER FULL DISPLAY FAN MOTOR FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 8) FROM REAR FUSE, RELAY MODULE (DIAGRAM 6 OF 8) FRONT CENTER CONSOLE USB CONNECTOR FRONT SAM CONTROL UNIT FUSE 200 FUSE 201 FUSE 202 FUSE 203 FUSE 205 FUSE 206 FUSE 207 FUSE 208 FUSE 209 FUSE 210 FUSE 211 FUSE 212 FUSE 213 FUSE 214 FUSE 215 FUSE 216 FUSE 217 FUSE 218 FUSE 219 FUSE 220 LEFT FRONT DOOR CONTROL UNIT LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT REAR DOOR CONTROL UNIT N/A N/A N/A NCA WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/ORG WIRE RED/WHT WIRE RED/YEL WIRE STARTER GENERATOR CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT TELEPHONE, ACTIVE PARKING ASSIST/ STATIONARY HEATER ANTENNA CHANGEOVER SWITCH UPPER CONTROL PANEL CONTROL UNIT W/ ANALOG CLOCK W/ COMMAND APS W/O ANALOG CLOCK W/O COMMAND APS

ADAPTIVE DAMPING SYSTEM CONTROL UNIT AIR BODY CONTROL UNIT ALL-WHEEL DRIVE CONTROL UNIT BACKUP RELAY BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/YEL WIRE DRIVER SEAT HEATER CONTROL UNIT EARLY PRODUCTION LATE PRODUCTION FROM REAR FUSE, RELAY MODULE (DIAGRAM 6 OF 8) FROM VEHICLE INTERIOR PREFUSE BOX (DIAGRAM 1 OF 8) FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FRONT PASSENGER SEAT PARTIALLY ELECTRIC SEAT ADJUSTMENT SWITCH FRONT VEHICLE INTERIOR POWER OUTLET FUEL PUMP CONTROL UNIT FUSE 400 FUSE 401 FUSE 402 FUSE 403 FUSE 404 FUSE 407 FUSE 411 FUSE 449 FUSE 450 FUSE 451 FUSE 453 FUSE 454 FUSE 455 FUSE 456 FUSE 457 FUSE 458 FUSE 476 FUSE 477 FUSE 481 FUSE 482 GRY/BLU WIRE HEATED REAR WINDOW RELAY HECKR LUGGAGE COMPARTMENT SOCKET MULTICONTOUR SEAT PNEUMATIC PUMP N/A REAR CENTER CONSOLE POWER OUTLET REAR PASSENGER COMPARTMENT USB CONNECTOR REAR SAM CONTROL UNIT REAR SEAT HEATERS CONTROL UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SOCKETS, REAR SEAT ENTERTAINMENT SYSTEM RELAY TO DC/AC CONVERTER CONTROL UNIT (DIAGRAM 1 OF 8) TO FUSE 417 (DIAGRAM 6 OF 8) W/ SMOKER'S PACKAGE W/O SMOKER'S PACKAGE

BACKUP RELAY BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L CAN PER H CAN PER L CAN-D H CAN-D L COMPUTER DATA LINES SYSTEM DCS ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BP FLEX-E BP PNK FLEX-E BM WIRE FROM BATTERY DISCONNECT SWITCH RELAY (DIAGRAM 1 OF 8) FROM ENGINE FUSE, RELAY MODULE (DIAGRAM 7 OF 8) FROM FUSE 117 (DIAGRAM 7 OF 8) FROM PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 8 OF 8) FULLY INTEGRATED TRANSMISSION CONTROL ELECTRIC CONTROLLER UNIT FUSE 100 FUSE 105 FUSE 107 FUSE 115 FUSE 116 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE KEYLESS GO START/STOP BUTTON KEYLESS-GO CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT N/A ORG/ WIRE PARK PAWL CAPACITOR PNK FLEX-E BM WIRE PNOT RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE REL C (+) SIG (1) SIG (2) SIG 3 VIO WIRE VIO/WHT WIRE WAKE-UP WHT WIRE

ACTIVE DISTANCE ASSIST DISTRONIC ELECTRIC CONTROLLER UNIT DRIVER SEAT CONTROL UNIT DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT FROM VEHICLE INTERIOR PREFUSE BOX (DIAGRAM 1 OF 8) FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SEAT HEATER CONTROL UNIT FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT FRONT SEAT HEATER/SEAT VENTILATION CONTROL UNIT FUSE 1 FUSE 2 FUSE 301 FUSE 302 FUSE 303 FUSE 304 FUSE 305 FUSE 306 FUSE 307 FUSE 310 FUSE 314 FUSE 316 FUSE 317 FUSE 4 FUSE 5 FUSE 6 HEAD UNIT HERMES CONTROL UNIT LEFT FRONT MULTICONTOUR SEAT CONTROL UNIT MONO MULTI-FUNCTION CAMERA MULTIPLE FUSE 1 OVERHEAD CONTROL PANEL CONTROL UNIT RAIN/LIGHT SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT (OR RED/BLU) WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT MULTICONTOUR SEAT CONTROL UNIT RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR RIGHT REAR DOOR CONTROL UNIT SHORT, LONG-RANGE RADAR SENSOR STATIONARY HEATER UNIT STEREO MULTI-FUNCTION CAMERA TO MULTIPLE FUSE 2 (DIAGRAM 8 OF 8) W/ ACTIVE DISTANCE ASSIST DISTRONIC W/ DISTRONIC PLUS W/ MEMORY W/ MULTICONTOUR SEAT W/O ACTIVE DISTANCE ASSIST DISTRONIC W/O DISTRONIC PLUS W/O MEMORY W/O MULTICONTOUR SEAT

ADVANCED SOUND SYSTEM AMPLIFIER CONTROL UNIT AIR BODY CONTROL PLUS CONTROL UNIT AMBIANCE ILLUMINATION CONTROL UNIT ARMREST HEATER CONTROL UNIT BACKUP CAMERA CONTROL UNIT ENGINE SOUND CONTROL UNIT FROM FUSE 449 (DIAGRAM 3 OF 8) FUSE 406 FUSE 408 FUSE 410 FUSE 412 FUSE 414 FUSE 415 FUSE 417 FUSE 425 FUSE 428 FUSE 435 FUSE 436 FUSE 443 FUSE 444 FUSE 445 FUSE 446 FUSE 447 FUSE 448 FUSE 461 FUSE 462 FUSE 463 FUSE 467 FUSE 468 FUSE 469 FUSE 471 FUSE 472 FUSE 473 FUSE 475 FUSE 478 FUSE 479 FUSE 483 FUSE 484 INTELLIGENT DRIVE CONTROL UNIT N/A N/A N/A NCA WIRE PARKING SYSTEM CONTROL UNIT REAR SWITCHING MODULE REAR WOOFER AMPLIFIER RED WIRE RED/BLU (OR RED) WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/ORG WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SOUND SYSTEM AMPLIFIER CONTROL UNIT SOUND SYSTEM MIDLINE AMPLIFIER CONTROL UNIT TELEPHONE ANTENNA CHANGEOVER SWITCH TIRE PRESSURE MONITOR CONTROL UNIT TO DC\DC CONVERTER CONTROL UNIT (DIAGRAM 2 OF 8) TO REAR PASSENGER COMPARTMENT USB CONNECTOR (DIAGRAM 3 OF 8) TRAILER RECOGNITION CONTROL UNIT TRUNK LID CONTROL UNIT TV TUNER CONTROL UNIT W/ ACTIVE PARKING ASSIST W/ ADVANCED SOUND SYSTEM W/ PREMIUM AMBIANCE ILLUMINATION W/ UPRATED ENGINE W/O ACTIVE PARKING ASSIST W/O ADVANCED SOUND SYSTEM W/O UPRATED ENGINE W/ ADVANCED SOUND SYSTEM W/O UPRATED ENGINE, ADVANCED SOUND SYSTEM

AIR BODY CONTROL RELAY ALL-WHEEL DRIVE CONTROL UNIT BACKUP RELAY BLK/RED WIRE BRN WIRE CPC RELAY DRIVE UNIT CONTROL UNIT DRIVETRAIN CONTROL UNIT ELECTRIC REFRIGERANT COMPRESSOR ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT TERMINAL 15 RELAY EXTERIOR LIGHTS SWITCH FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 8) FRONT SAM CONTROL UNIT FUSE 106 FUSE 108 FUSE 109 FUSE 110 FUSE 111 FUSE 112 FUSE 117 FUSE 121 FUSE 123 FUSE 124 FUSE 125 FUSE 126 FUSE 128 FUSE 129 FUSE 130 FUSE 133 GRN/RED WIRE LEFT FRONT LAMP UNIT ME-SFI (ME) CONTROL UNIT N/A PNK/RED (OR GRN/RED) WIRE PNK/RED WIRE RED WIRE RED/BLK WIRE RED/WHT (OR RED) WIRE RIGHT FRONT LAMP UNIT STARTER CIRCUIT 50 RELAY TO BACKUP RELAY (DIAGRAM 4 OF 8) TO PARK PAWL CAPACITOR (DIAGRAM 4 OF 8) W/ DYNAMIC LED HEADLAMPS W/ STATIC LED HEADLAMPS WIPER MOTOR

ALARM SIREN AUDIO/COMMAND CONTROL PANEL DIAGNOSTIC CONNECTOR DRIVER-SIDE INSTRUMENT PANEL BUTTON GROUP DRIVETRAIN CONTROL UNIT FM, AM, CL, DAB, KEYLESS-GO ANTENNA AMPLIFIER FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 8) FROM MULTIPLE FUSE 1 (DIAGRAM 5 OF 8) FUSE 1 FUSE 2 FUSE 3 FUSE 308 FUSE 309 FUSE 311 FUSE 312 FUSE 313 FUSE 318 FUSE 319 FUSE 320 FUSE 321 FUSE 322 FUSE 4 FUSE 5 FUSE 6 HEAD-UP DISPLAY INSTRUMENT CLUSTER KEYLESS-GO CONTROL UNIT ME-SFI (ME) CONTROL UNIT MULTIMEDIA CONNECTION UNIT MULTIPLE FUSE 2 MULTIPLE FUSE 3 NCA WIRE PERFUME ATOMIZER GENERATOR REAR AIR CONDITIONING OPERATING UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SLIDING ROOF CONTROL MODULE SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT THEFT DETECTION SYSTEM ELECTRICAL CONNECTOR TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 4 OF 8) TOUCHPAD (IF EQUIPPED) W/ AIR BALANCE PACKAGE W/ INTERIOR MONITORING