Mercedes-Benz CLS-class C257 (2017-2021) red/blu Wiring diagrams

??? ??? BLU WIRE BLU/WHT WIRE BRN WIRE CAN HMI H CAN HMI L CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BP PNK FLEX-E BM WIRE FULLY INTEGRATED TRANSMISSION CONTROL ELECTRIC CONTROLLER UNIT FUSE 10 FUSE 205 GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER NCA WIRE P NOT RED WIRE RED/BLU WIRE RED/GRN WIRE SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS STEERING WHEEL UPSHIFT BUTTON VEHICLE INTERIOR PREFUSE BOX VIO WIRE VIO/WHT WIRE

??? ??? BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BP PNK FLEX-E BM WIRE FRONT SAM CONTROL UNIT FUSE 201 FUSE 205 GRN WIRE HORNS CONTACT PLATE HOT AT ALL TIMES LEFT FANFARE HORN NCA WIRE RED/BLU WIRE RED/WHT WIRE RIGHT FANFARE HORN SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS YEL WIRE

??? ??? 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

??? ??? BLK WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE DRIVER-SIDE POWER WINDOW, OUTSIDE MIRROR ADJUSTMENT SWITCH GROUP FUSE 203 FUSE 214 FUSE 301 FUSE 302 GRN WIRE GRN/RED WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR POWER WINDOW MOTOR LEFT FRONT POWER WINDOW SWITCH LEFT REAR POWER WINDOW SWITCH MOT GND/(+) PASSENGER-SIDE A-PILLAR FUSE BOX PASSENGER-SIDE POWER WINDOW SWITCH REAR SIDE WINDOW CHILD SAFETY LOCK SWITCH RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT (IN RIGHT FRONT DOOR) RIGHT FRONT DOOR POWER WINDOW MOTOR RIGHT FRONT POWER WINDOW SWITCH RIGHT REAR POWER WINDOW SWITCH SIG SYSTEM WHT/GRN WIRE YEL/GRN WIRE

??? ??? BLK WIRE BLK/VIO WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM GRN WIRE LEFT REAR DOOR CONTROL UNIT LEFT REAR DOOR POWER WINDOW MOTOR LEFT REAR POWER WINDOW SWITCH MOT GND/(+) RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT REAR DOOR CONTROL UNIT RIGHT REAR DOOR POWER WINDOW MOTOR RIGHT REAR POWER WINDOW SWITCH SIG WHT/BLK WIRE WHT/GRN WIRE

AUDIO/COMAND CONTROL PANEL BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN A H CAN A L CAN B L CAN-B H AAG COMPUTER DATA LINES SYSTEM FUSE 476 GND MOT GRN WIRE HOT AT ALL TIMES MOT GND/(+) MOT- MULTIPLE FUSE 2 NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT REAR WINDOW ROLLER SUN BLIND MOTOR RED/BLK WIRE RED/BLU WIRE RIGHT LOWER CONTROL PANEL SENS SENS 1 SENS 2 SENS GND WHT WIRE YEL WIRE

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/BLU WIRE BLK/YEL WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ENGINE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT FUSE 111 FUSE 200 FUSE 211 FUSE 305 GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER OVERHEAD CONSOLE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE SIG SIG GND SPRAY NOZZLE HOSE HEATER STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/WHT WIRE WINDSHIELD WASHER FLUID LEVEL INDICATOR SWITCH WINDSHIELD WASHER SYSTEM PUMP WIPER MOTOR YEL WIRE

??? ??? AAG BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN C H CAN C L COMPUTER DATA COMPUTER DATA LINES SYSTEM CRASH ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FUEL PRESSURE SENSOR FUEL PUMP (FP) FUEL PUMP CONTROL UNIT (UNDER RIGHT REAR SEAT) FUEL TANK DIAGNOSTIC MODULE FUSE 101 FUSE 102 FUSE 103 FUSE 104 FUSE 5 GRN WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/PNK WIRE HEAT GND HECK R HOT AT ALL TIMES LEFT FUEL TANK FUEL LEVEL INDICATOR FILL LEVEL SENSOR LINES SYSTEM ME-SFI (ME) CONTROL UNIT MPAC U MPAC V MPAC W NCA WIRE ORG/BLU WIRE PNK/BLK WIRE PNK/RED WIRE PUMP PUMP GND PUMP SIG REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE REL (+) RIGHT FUEL TANK FUEL LEVEL INDICATOR FILL LEVEL SENSOR SIG STARTING/CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TO CPC RELAY (DIAGRAM 9 OF 9) VALVE GND VIO/ORG WIRE VIO/WHT WIRE WHT WIRE YEL WIRE

87 RELAY (DIAGRAM 1 OF 9) ACCELERATOR PEDAL SENSOR BLK WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CAN C H CAN C L CAN PER H CAN PER L COMPUTER DATA LINES SYSTEM CPC RELAY DRIVETRAIN CONTROL UNIT (RIGHT FRONT FOOTWELL) ENGINE FUSE, RELAY MODULE FAN MOTOR FLEX-E BP FROM CIRCUIT FRONT SAM CONTROL UNIT FUSE 118 FUSE 119 FUSE 125 GRN WIRE GRN/WHT WIRE HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED LOW TEMPERATURE CIRCUIT CIRCULATION PUMP 1 LOW TEMPERATURE CIRCUIT CIRCULATION PUMP 2 LOWER RADIATOR TRIM FLAP ACTUATOR MOTOR PNK FLEX E BM PNK FLEX E BM WIRE PNK/RED WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE REL (+) SENS 1 SENS 1 GND SENS 2 SENS 2 (+) FLEX E BM PNK WIRE SENS 2 GND UPPER RADIATOR TRIM FLAP ACTUATOR MOTOR WHT WIRE WHT/YEL WIRE WSR