Mercedes-Benz CLS-class C257 (2017-2021) nca Wiring diagrams

AIR BODY CONTROL COMPRESSOR (LEFT FRONT OF ENGINE COMPT) AIR BODY CONTROL PRESSURE RELIEF VALVE AIR BODY CONTROL RELAY AIR BODY CONTROL UNIT BLK/BRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BRN WIRE COMPRESSOR) ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 114 FUSE 132 FUSE 454 FUSE 5 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT FRONT LEFT FRONT AXLE DAMPING VALVE UNIT NCA WIRE ORG/ WIRE PNK WIRE REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE REL (+) REL GND RIGHT REAR LEVEL SENSOR SIG SOLENOID VALVE 1 VALVE 2 VIO WIRE VLV 1 H VLV 1 L WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE

AIR BODY CONTROL VALVE UNIT BLK WIRE BLK/BRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BRN/BLK WIRE GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE LEFT FRONT BODY LATERAL ACCELERATION SENSOR LEFT FRONT LEVEL SENSOR LEFT REAR LEFT REAR AXLE DAMPING VALVE UNIT LEFT REAR BODY LATERAL ACCELERATION SENSOR LEFT REAR LEVEL SENSOR LET REAR NCA WIRE ORG/ WIRE PNK WIRE RED/WHT WIRE RIGHT FRONT RIGHT FRONT AXLE DAMPING VALVE UNIT RIGHT FRONT LEVEL SENSOR RIGHT REAR RIGHT REAR AXLE DAMPING VALVE UNIT SOLENOID VALVE 1 VALVE 2 VIO/GRN WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/WHT WIRE

ADAPTIVE DAMPING SYSTEM CONTROL UNIT BLK WIRE BLK/BRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BRN WIRE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BM FLEX-E BP FUSE 454 GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT FRONT AXLE DAMPING VALVE UNIT LEFT FRONT LEVEL SENSOR LEFT REAR AXLE DAMPING VALVE UNIT LEFT REAR LEVEL SENSOR NCA WIRE PNK WIRE REAR FUSE, RELAY MODULE RED/WHT WIRE RIGHT FRONT AXLE DAMPING VALVE UNIT RIGHT FRONT LEVEL SENSOR RIGHT REAR AXLE DAMPING VALVE UNIT RIGHT REAR LEVEL SENSOR SIG VIO WIRE VLV 1 H VLV 1 L VLV 2 H VLV 2 L WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE

BLK WIRE BRN WIRE CLIMATE CONTROL OPERATING UNIT CLIMATE CONTROL UNIT (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FUSE 209 FUSE 8 GRN/VIO WIRE GRY/RED WIRE HEATED WINDSHIELD HOT AT ALL TIMES NCA WIRE RED WIRE RED/WHT WIRE SIG GND VEHICLE INTERIOR PREFUSE BOX WINDSHIELD HEATER CONTROL UNIT

BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L CLIMATE CONTROL OPERATING UNIT COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 209 FUSE 302 FUSE 474 FUSE 7 GRY/RED WIRE HEAT (+) HEAT GND HEATED REAR WINDOW RELAY HECKR HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT (RIGHT REAR OF LUGGAGE COMPT) REAR WINDOW HEATER REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR VEHICLE INTERIOR PREFUSE BOX

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

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

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

BLK WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN H H CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DCS DCS GND DRIVER SEAT BELT BUCKLE SWITCH DRIVER SEAT POSITION DETECTION SWITCH DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FRONT SAM CONTROL UNIT FUSE 1 FUSE 200 FUSE 203 FUSE 312 FUSE 322 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FRONT DOOR LOCK NCA WIRE ORG/GRN WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PRE-LOCKING POSITION MICROSWITCH RED WIRE RED/BLU WIRE RED/WHT WIRE SIG SIG GND SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VIO WIRE VIO/WHT WIRE W/ POWER CLOSING W/O POWER CLOSING YEL WIRE YEL/GRY WIRE

BLK WIRE BLK/BLU WIRE BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FLEX-E BM FLEX-E BP FUSE 1 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT ELECTRIC PARKING BRAKE ACTUATOR MOTOR MOT GND/(+) NCA WIRE PNK WIRE RED WIRE RED/WHT WIRE RIGHT ELECTRIC PARKING BRAKE ACTUATOR MOTOR SIG (1) SIG (2) SIG 3 SIG 4 VIO WIRE VIO/WHT WIRE YEL WIRE