Power distribution circuit for Mercedes-Benz CLS-class C257 facelift (2021-2024)

AC HOUSING, BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLK/YEL WIRE BRN WIRE BRN/VIO WIRE CIRCUIT 30 TERMINAL BLOCK ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FAN MOTOR FROM ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 1 OF 9) FROM REAR FUSE, RELAY MODULE (DIAGRAM 6 OF 9) 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 GRY WIRE HECKD N/A NOT USED ON-BOARD ELECTRICAL SYSTEM BATTERY PYROFUSE REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT (OR RED) WIRE RED/WHT WIRE TO DC/DC CONVERTER CONTROL UNIT (DIAGRAM 2 OF 9) TO DRIVER-SIDE FUSE, RELAY MODULE (DIAGRAM 2 OF 9) TO ENGINE FUSE, RELAY MODULE (DIAGRAM 7 OF 9) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 5 OF 9) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 8 OF 9) TO REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 9) VEHICLE INTERIOR PREFUSE BOX VIO WIRE

*** BACKUP RELAY BLK WIRE 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 FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 9) FROM REAR FUSE, RELAY MODULE (DIAGRAM 6 OF 9) FRONT SAM CONTROL UNIT FUSE 200 FUSE 201 FUSE 202 FUSE 203 FUSE 204 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 GRY WIRE HEAD UNIT/INSTRUMENT CLUSTER DISPLAY CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT REAR DOOR CONTROL UNIT N/A N/A N/A NCA WIRE NOT USED PYROFUSE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE STARTER GENERATOR CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT UPPER CONTROL PANEL CONTROL UNIT

*** BACKUP RELAY BRN WIRE BRN/BLU WIRE BRN/YEL WIRE DRIVER SEAT HEATER CONTROL UNIT FROM VEHICLE INTERIOR PREFUSE BOX (DIAGRAM 1 OF 9) FUEL PUMP CONTROL UNIT FUSE 400 FUSE 401 FUSE 402 FUSE 403 FUSE 404 FUSE 405 FUSE 407 FUSE 411 FUSE 449 FUSE 450 FUSE 451 FUSE 452 FUSE 453 FUSE 454 FUSE 455 FUSE 456 FUSE 457 FUSE 458 FUSE 459 FUSE 460 FUSE 465 FUSE 466 FUSE 476 FUSE 477 FUSE 481 FUSE 482 GRY/BLU WIRE HEATED REAR WINDOW RELAY HECKR MULTICONTOUR SEAT PNEUMATIC PUMP N/A NOT USED REAR CIGARETTE LIGHTER REAR PASSENGER COMPARTMENT USB CONNECTOR REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE SOCKETS, REAR SEAT ENTERTAINMENT SYSTEM RELAY TO FUSE 417 (DIAGRAM 6 OF 9) TO FUSE 423 (DIAGRAM 9 OF 9)

*** BACKUP RELAY BRN WIRE ELECTRIC COOLANT PUMP FROM FUSE 117 (DIAGRAM 7 OF 9) FUSE 1 FUSE 100 FUSE 105 FUSE 107 FUSE 113 FUSE 115 FUSE 116 FUSE 127 FUSE 2 FUSE 3 FUSE 854 FUSE 855 MULTI FUSE 1 N/A NOT USED RED WIRE RED/VIO WIRE STARTER CIRCUIT 50 RELAY

DRIVER SEAT CONTROL UNIT FROM VEHICLE INTERIOR PREFUSE BOX (DIAGRAM 1 OF 9) FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SEAT HEATER CONTROL UNIT FUSE 1 FUSE 2 FUSE 3 FUSE 301 FUSE 302 FUSE 303 FUSE 304 FUSE 305 FUSE 306 FUSE 307 FUSE 310 FUSE 314 FUSE 315 FUSE 316 FUSE 317 FUSE 4 FUSE 5 FUSE 6 HEAD UNIT HERMES CONTROL UNIT LEFT FRONT MULTICONTOUR SEAT CONTROL UNIT MOBILE PHONE CRADLE CONTROL UNIT MULTIPLE FUSE 1 OVERHEAD CONTROL PANEL CONTROL UNIT PYRO- FUSE RAIN/LIGHT SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY 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 STEREO MULTI-FUNCTION CAMERA TO MULTIPLE FUSE 2 (DIAGRAM 8 OF 9)

AMBIANCE ILLUMINATION CONTROL UNIT FROM FUSE 449 (DIAGRAM 3 OF 9) FUSE 406 FUSE 408 FUSE 409 FUSE 410 FUSE 412 FUSE 413 FUSE 414 FUSE 415 FUSE 416 FUSE 417 FUSE 424 FUSE 425 FUSE 426 FUSE 427 FUSE 428 FUSE 429 FUSE 435 FUSE 436 FUSE 443 FUSE 444 FUSE 445 FUSE 446 FUSE 447 FUSE 448 FUSE 461 FUSE 462 FUSE 463 FUSE 464 FUSE 467 FUSE 468 FUSE 469 FUSE 470 FUSE 471 FUSE 472 FUSE 473 FUSE 474 FUSE 475 FUSE 478 FUSE 479 FUSE 480 FUSE 483 FUSE 484 INSTRUMENT CLUSTER CONTROL UNIT INTELLIGENT DRIVE CONTROL UNIT N/A NOT USED PARKING SYSTEM CONTROL UNIT REAR SWITCHING MODULE REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SOUND SYSTEM AMPLIFIER CONTROL UNIT TIRE PRESSURE MONITOR CONTROL UNIT TO DC/DC CONVERTER CONTROL UNIT (DIAGRAM 2 OF 9) TRUNK LID CONTROL UNIT

*** AIR BODY CONTROL RELAY BACKUP RELAY BLK/RED WIRE BRN WIRE CPC RELAY 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 9) FRONT SAM CONTROL UNIT FUSE 106 FUSE 108 FUSE 109 FUSE 110 FUSE 111 FUSE 112 FUSE 117 FUSE 120 FUSE 121 FUSE 122 FUSE 123 FUSE 124 FUSE 125 FUSE 126 FUSE 128 FUSE 129 FUSE 130 FUSE 133 LEFT FRONT LAMP UNIT ME-SFI (ME) CONTROL UNIT N/A NOT USED PNK 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 9) TO PARK PAWL CAPACITOR (DIAGRAM 9 OF 9) WIPER MOTOR

DIAGNOSTIC CONNECTOR DRIVETRAIN CONTROL UNIT FM, AM, CL, DAB, KEYLESS-GO ANTENNA AMPLIFIER FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 9) FROM MULTIPLE FUSE 1 (DIAGRAM 5 OF 9) FRONT MULTIMEDIA CONNECTION UNIT 2 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 323 FUSE 4 FUSE 5 FUSE 6 HEAD-UP DISPLAY KEYLESS-GO CONTROL UNIT ME-SFI (ME) CONTROL UNIT MULTIMEDIA CONNECTION UNIT MULTIPLE FUSE 2 MULTIPLE FUSE 3 N/A NOT USED 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 TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 9 OF 9) TOUCHPAD

*** BLK WIRE BLK/RED 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 PNK FLEX E WIRE FLEX E+ FROM BACKUP RELAY (DIAGRAM 3 OF 9) FROM ENGINE FUSE, RELAY MODULE (DIAGRAM 7 OF 9) FROM PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 8 OF 9) FULLY INTEGRATED TRANSMISSION CONTROL ELECTRIC CONTROLLER UNIT FUSE 418 FUSE 419 FUSE 420 FUSE 421 FUSE 422 FUSE 423 FUSE 430 FUSE 432 FUSE 433 FUSE 434 FUSE 437 FUSE 438 FUSE 439 FUSE 440 FUSE 441 FUSE 442 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 NOT USED ORG/ WIRE PARK PAWL CAPACITOR PNK FLEX E- WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE SIG SIG (2) SIG 3 TO BATTERY DISCONNECT SWITCH RELAY (DIAGRAM 1 OF 9) VIO WIRE VIO/WHT WIRE WAKE-UP WHT WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE