Mercedes-Benz GLC-class Coupe C253 (2016-2019) vio Wiring diagrams

2 3 A M K KK 6 7 TMP VD V 6 7 WAPU+ AFV AC HOUSING, BLK WIRE BLK/YEL WIRE BLOWER MOTOR BLOWER REGULATOR BLU WIRE BLU/BRN WIRE BOOSTER BLOWER ELECTRONIC BLOWER REGULATOR BRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L CENTRAL AIR DISTRIBUTION POSITION DETECTION MICROSWITCH CLIMATE CONTROL UNIT (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM EVAPORATOR TEMPERATURE SENSOR FUSE 207 FUSE 3 FUSE 311 FUSE 340 FUSE 415 GND GND GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FOOTWELL AIR OUTLET TEMPERATURE SENSOR LEFT FUSE, RELAY MODULE ORG/ WIRE PERFUME ATOMIZER GENERATOR PNK WIRE REAR CENTER AIR VENT AIR OUTLET TEMPERATURE SENSOR REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR BOX RIGHT FOOTWELL AIR OUTLET TEMPERATURE SENSOR SIG STATIONARY HEATER UNIT SW POS TEMP TMP FR L TMP FR R VEHICLE INTERIOR PREFUSE BOX VIO WIRE VIO/YEL WIRE W/ AIR BALANCE PACKAGE WHT/BLU WIRE YEL WIRE YEL/VIO WIRE

BLK/RED WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN PER H CAN PER L COMPUTER DATA LINES SYSTEM FUSE 302 FUSE 406 FUSE 452 GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ VEHICLE INTERIOR TERMINAL 15 RELAY ENERGIZED LEFT BLIND SPOT ASSIST READINESS, WARNING INDICATOR LEFT FRONT DOOR CONTROL UNIT LEFT OUTER REAR BUMPER INTEGRATED RADAR SENSOR LEFT OUTSIDE MIRROR REAR FUSE, RELAY MODULE RED WIRE RED/BLU WIRE RIGHT A-PILLAR FUSE BOX RIGHT BLIND SPOT ASSIST READINESS, WARNING INDICATOR RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTER REAR BUMPER INTEGRATED RADAR SENSOR RIGHT OUTSIDE MIRROR TA B (+) TA W (+) VIO WIRE VIO/WHT WIRE

'MEDIA' BUTTON 'NAVI' BUTTON 'RADIO' BUTTON 'TEL' BUTTON AUDIO/COMAND DISPLAY BLK WIRE BLK/WHT WIRE BLU WIRE BREAK DOWN ASSISTANCE BUTTON BRN WIRE BRN/RED WIRE CAN A H CAN A L CAN B H CAN B L CD/DVD SINGLE DRIVE BUTTON COMPUTER DATA LINES SYSTEM DVD CHANGER CHARGING BUTTON FUSE 309 FUSE 322 FUSE 324 FUSE 329 FUSE 331 FUSE 334 GRN WIRE HEAD UNIT HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LVDS RX+ LVDS TX- MB INFO BUTTON MOST DATA BUS CIRCUIT MOST IN MOST OUT MULTIMEDIA CONNECTION UNIT NCA WIRE ORG/ WIRE OVERHEAD CONTROL PANEL CONTROL UNIT RED WIRE RED/WHT WIRE RIGHT A-PILLAR FUSE BOX SHIELD SIG SOS BUTTON SOUND SYSTEMS TERMINATION UPPER CONTROL PANEL CONTROL UNIT VIO WIRE W/ ENGINE SOUND CONTROL W/ LIVE TRAFFIC INFORMATION W/ MULTIMEDIA W/O ENGINE SOUND CONTROL W/O LIVE TRAFFIC INFORMATION W/O MULTIMEDIA WAKE-UP WHT/YEL WIRE YEL WIRE

'ON' BUTTON AGILITY SELECT SWITCH AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER BACK BUTTON BACK GROUND AUDIO BUTTON BLK/WHT WIRE BLU WIRE BRN WIRE CAN A H CAN A L CAN-D H CAN-D L COMPUTER COMPUTER DATA LINES SYSTEM DATA LINES DSR ECO START/STOP FUNCTION BUTTON EMERGENCY CALL SYSTEM CONTROL UNIT GPS GRN WIRE GRY WIRE GRY/BLK WIRE HERMES CONTROL UNIT HOME, FAVORITES BUTTON HSD LEFT LOWER CONTROL PANEL LIN LTE MIC - MIC 1 GND MIC 1+ MIC GND MUTE NCA WIRE OFF-ROAD OPERATING PANEL ORG/ WIRE PARKING SYSTEM BUTTON PNK/BLK WIRE RED WIRE RED/PNK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT LOWER CONTROL PANEL SHIELD SHIELD HSD SIG SOUND AMPLIFIER CIRCUIT SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM TEL TELEMATICS SERVICES COMMUNICATION MODULE TELEPHONE, STATIONARY HEATER ANTENNA CHANGEOVER SWITCH TELEPHONE/GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER TOUCH PAD VBUS VEHICLE LEVEL BUTTON VIO WIRE VIO/GRN WIRE VOLUME CONTROL BUTTON W/ EMERGENCY CALL SYSTEM W/ HERMES W/ HERMES LTE W/ PREINSTALLATION FOR TAXI ANTENNA W/ SOUND SYSTEM W/O EMERGENCY CALL SYSTEM W/O HERMES W/O SOUND SYSTEM WHT WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BRN WIRE

ACCEPT/ TERMINATE PHONE CALL BUTTON BACK BUTTON BLK WIRE BLK/WHT WIRE BRN WIRE BUTTONS +, - FOR SETTING SPECIFIC FUNCTIONS, VOLUME CONTROL CAN A H CAN A L COMMUNICATIONS MODULE/STATIONARY HEATER ANTENNA COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM ANTENNA FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT GPS ANTENNA GRN WIRE GRN/ORG WIRE GRY/BLU WIRE L OK L RETURN LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LIN MUTE FUNCTION BUTTON MUTE VCS NCA WIRE OK BUTTON PNK WIRE RED WIRE RED/WHT WIRE RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SCROLL FORWARD/ BACK BUTTON STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS SYSTEM SELECTION BUTTON TEL TOUCHPAD U MFL R UP/DOWN V MFL L VIO WIRE VOICE CONTROL SYSTEM OFF BUTTON W/ HERMES LTE WHT WIRE WHT/YEL WIRE YEL WIRE

BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM ENGINE SOUND CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) FUSE 319 FUSE 424 GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLK WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED IN FL- IN FR- IN RL- IN RR- LEFT FRONT DOOR MIDRANGE SPEAKER LEFT REAR DOOR/SIDE PANELING MIDRANGE SPEAKER LEFT REAR SIDEWALL COVER MIDRANGE SPEAKER NCA WIRE ORG/ WIRE ORG/BLK WIRE OUT FL- OUT FR+ OUT RL- OUT RR- REAR FUSE, RELAY MODULE RED/BLK WIRE RIGHT A-PILLAR FUSE BOX RIGHT FOOTWELL WOOFER RIGHT FRONT DOOR MIDRANGE SPEAKER RIGHT REAR DOOR/SIDE PANELING MIDRANGE SPEAKER RIGHT REAR SIDEWALL COVER MIDRANGE SPEAKER VIO WIRE WAKEUP WHT WIRE WHT/BLK WIRE WHT/YEL WIRE

AM/FM BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLUETOOTH ANTENNA BRN WIRE CAN A H CAN A L PNK ETN TX+ WIRE CAN HMI H CAN HMI L CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR COMPUTER DATA LINES SYSTEM DIAGNOSTIC CONNECTOR ETN RX+ ETN TX+ FM 1, AM, CL (ZV), KEYLESS GO ANTENNA AMPLIFIER FM 2 FM 2, DAB BAND III ANTENNA AMPLIFIER GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GPS GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLK WIRE HANDS-FREE SYSTEM MICROPHONE HEAD UNIT INSIDE REAR VIEW MIRROR LEFT "C" PILLAR) LEFT REAR DOOR/SIDE PANELING MIDRANGE SPEAKER LEFT REAR SIDE WALL COVER MIDRANGE SPEAKER LEFT/RIGHT FOOTWELL WOOFER LVDS HU TX+ LVDS RX+ MIC - MIC 1 IN+ MIC 2 IN+ MIC GND MOBILE PHONE CONTACT PLATE MOBILE PHONE, STATIONARY HEATER RADIO REMOTE CONTROL ANTENNA SPLITTER NAVIGATION SYSTEM NCA WIRE ORG/ WIRE PNK WIRE RIGHT END OF DASH) RIGHT REAR DOOR/SIDE PANELING MIDRANGE SPEAKER RIGHT REAR SIDE WALL COVER MIDRANGE SPEAKER RX- SHIELD SHIELD AMFM SHIELD GPS-BT SIG PNK (+) WIRE TERMINATION VIO WIRE VIO/BLK WIRE W-LAN W-LAN ANTENNA W/O ENGINE SOUND CONTROL WAKE-UP WHT WIRE WHT/BLK WIRE WHT/YEL WIRE YEL WIRE YEL/WHT WIRE

AMPS/CDMA AMPS/DVMA BRAKE DOWN ASSISTANCE BUTTON BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN-D H CAN-D L CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM ANTENNA EMERGENCY CALL SYSTEM CONTROL UNIT FUSE 309 GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GPS GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEAD UNIT HOT AT ALL TIMES MB INFO BUTTON MIC 1 GND MIC 1+ MUTE NCA WIRE NRS OUT OVERHEAD CONTROL PANEL CONTROL UNIT PNK/BLK WIRE RED WIRE RIGHT A-PILLAR FUSE BOX SHIELD SOS BUTTON SOUND SYSTEM AMPLIFIER CONTROL UNIT SUPPLEMENTAL RESTRAINTS SYSTEM TELEPHONE ANTENNA SPLITTER VIO WIRE W/ SOUND SYSTEM W/O SOUND SYSTEM WHT WIRE

AIR BODY CONTROL RELAY AIRMATIC RELAY ALARM SIREN ANALOG CLOCK BLK WIRE BLK/RED WIRE BLK/VIO WIRE CLIMATE CONTROL OPERATING UNIT, UPPER CONTROL PANEL CONTROL UNIT CLIMATE CONTROL UNIT CONTROL UNIT) COOLANT PUMP RELAY CPC RELAY DIAGNOSTIC CONNECTOR ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT TERMINAL 15 RELAY FANFARE HORN RELAY FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 6) FRONT SAM CONTROL UNIT FUSE 108 FUSE 109 FUSE 110 FUSE 111 FUSE 117 FUSE 121 FUSE 122 FUSE 123 FUSE 124 FUSE 125 FUSE 126 FUSE 127 FUSE 128 FUSE 129 FUSE 200 FUSE 201 FUSE 202 FUSE 204 FUSE 205 FUSE 206 FUSE 207 FUSE 208 FUSE 209 FUSE 210 FUSE 211 FUSE 213 FUSE 214 FUSE 216 FUSE 218 FUSE 219 FUSE 220 GLOW BOX LAMP INSTRUMENT CLUSTER K-F LEFT FRONT LAMP UNIT EXTERIOR LIGHTS SWITCH LEFT FRONT LAMP UNIT, RIGHT FRONT LAMP UNIT ME-SFI (ME) CONTROL UNIT N/A OIL PUMP RELAY ORG/BLU WIRE PNK/GRN WIRE PNK/RED WIRE RBA-1 RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/ORG WIRE RED/WHT WIRE RED/YEL WIRE RESERVE FUSE 215 STARTER STARTER CIRCUIT 50 RELAY STEERING COLUMN MODULE CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM TELEPHONE, STATIONARY HEATER ANTENNA CHANGEOVER SWITCH TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 5 OF 6) VACUUM PUMP RELAY VIO WIRE VIO/WHT WIRE VOLTAGE DIP LIMITER W/ SEAT OCCUPANCY RECOGNITION WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT WIPER MOTOR WIPER PARK POSITION HEATER RELAY YEL/RED WIRE

ANST BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE FULL-LOAD OPERATION VENT LINE HEATER ELEMENT GRN/BLK WIRE GRN/BRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HEATER INJ HIGH INJ LOW ION OXY PUMP ME-SFI (ME) CONTROL UNIT (LEFT SIDE OF ENGINE) NCA WIRE ORG/ WIRE OXYGEN SENSOR DOWNSTREAM OF CATALYTIC CONVERTER OXYGEN SENSOR UPSTREAM OF CATALYTIC CONVERTER PARTIAL LOAD OPERATION CRANKCASE VENTILATION VALVE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SETPOINT SIG SIG PRESSURE SIGNAL SIGNAL 1 SIGNAL 3 SIGNAL A SIGNAL B SIGNAL TEMP VENT LINE CONTACT SWITCH VIO WIRE VIO/GRY WIRE VIO/RED WIRE VIRTUAL GND WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE