Mercedes-Benz GLA-class X156 facelift (2017-2020) vehicle interior fuse box Wiring diagrams

AC HOUSING, AIR QUALITY SENSOR AIR RECIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BF SIG BLOWER MOTOR BLOWER REGULATOR BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CENTRAL AIR DISTRIBUTION POSITION DETECTION MICROSWITCH COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP DEFOGGER SYSTEM EVAPORATOR TEMPERATURE SENSOR F SIG FRONT ELECTRICAL PREFUSE BOX FUSE 34 FUSE 5 FUSE 81 FUSE 82 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/RED WIRE GRN/YEL WIRE HOT AT ALL TIMES INTERIOR TEMPERATURE SENSOR MK+ MOT- NCA WIRE ORG/ WIRE OUTSIDE TEMPERATURE SENSOR REAR WINDOW HEATER BUTTON RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR REFRIGERANT PRESSURE SENSOR RV+ S SIG SIG SUN SENSOR VEHICLE INTERIOR FUSE BOX VIO/BRN WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE W/O MAGNETIC CLUTCH W/ MAGNETIC CLUTCH WHT/BLK WIRE YEL/RED WIRE YEL/VIO WIRE

AUX GND AUX L + AUX R + BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN A H CAN A L CAN B H CAN B L CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT FUSE 110 FUSE 42 GND HSD GRN WIRE HANDS-FREE SYSTEM MICROPHONE HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT MIRROR TRIANGLE TWEETER LEFT REAR DOOR SPEAKER LVDS MF (-) MOBILE PHONE CONTACT PLATE MOST DATA BUS CIRCUIT MOST IN MOST OUT MOS MOST WS NCA WIRE ORG/ WIRE PNK AS (+) WIRE PNK WIRE RED/GRN WIRE RIGHT FRONT DOOR SPEAKER RIGHT MIRROR TRIANGLE TWEETER RIGHT REAR DOOR SPEAKER SHIELD SHIELD LVDS (+) SHIELD USB SOUND SYSTEMS TEL ST TEL WS USB D- USB ELECTRICAL CONNECTOR USB GND VEHICLE INTERIOR FUSE BOX VIO WIRE W/O SOUND SYSTEM WHT WIRE YEL WIRE

AUDIO FL H AUDIO FL L AUDIO FR H AUDIO FR L AUDIO RL L AUDIO RR H AUDIO RR L AUDIO/ COMAND CONTROLLER AUDIO/COMAND CONTROL PANEL BACK BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN A H CAN A L CAN A L PNK ETH (+) WIRE CAN B L CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR COMAND CONTROL UNIT COMAND FAN MOTOR COMPUTER DATA LINES SYSTEM DELETE BUTTON DIAG CAN B H DIAGNOSTIC CONNECTOR ETH (-) ETH WS FUSE 42 FUSE 49 GRN WIRE GRY WIRE GRY/YEL WIRE HANDS-FREE SYSTEM MICROPHONE (CENTER FRONT OF ROOF) HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT MIRROR TRIANGLE TWEETER LEFT REAR DOOR SPEAKER LVDS MF (-) MOBILE PHONE CONTACT PLATE MOST DATA BUS CIRCUIT MOST IN MOST OUT MOST WS NCA WIRE ORG/ WIRE ORG/YEL WIRE PNK AUDIO RL H WIRE PNK WIRE RED WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE SHIELD SHIELD LVDS (+) SOUND CONTROL SOUND SYSTEMS SPLITTER, W/ ENGINE TEL ST TEL WS TELEPHONE, STATIONARY HEATER ANTENNA CHANGEOVER SWITCH V SIG VEHICLE INTERIOR FUSE BOX VID VIO WIRE W/ ENGINE SOUND CONTROL UNIT W/ LIVE TRAFFIC INFORMATION W/ NAVIGATION W/ SPORTY ENGINE SOUND W/O ENGINE SOUND CONTROL UNIT W/O LIVE TRAFFIC INFORMATION W/O SPORTY ENGINE SOUND W/O USB WAKE-UP WHT WIRE YEL WIRE YEL/BLU WIRE

AUDIO AUDIO H AUDIO L+ AUDIO/COMAND DISPLAY BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN A H CAN A L CAN C H CAN C L COMPUTER DATA LINES SYSTEM ENGINE SOUND CONTROL UNIT FL H FL L FR H FR-L FUSE 103 FUSE 104 FUSE 110 FUSE 33 FUSE 37 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES LVDS NCA WIRE ORG/ WIRE PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RIGHT FRONT DOOR SPEAKER RIGHT MIRROR TRIANGLE TWEETER RIGHT REAR DOOR SPEAKER RL H RL L RR H RR-L SHIELD STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL CLOCK SPRING CONTACT VEHICLE INTERIOR FUSE BOX VIO WIRE W/ ENGINE SOUND CONTROL UNIT W/O ENGINE SOUND CONTROL UNIT W/O LIVE TRAFFIC INFORMATION W/ LIVE TRAFFIC INFORMATION W/ MULTIMEDIA W/O MULTIMEDIA WAKE-UP WHT WIRE YEL WIRE YEL/BLU WIRE

ACTIVATED CHARCOAL FILTER SHUTOFF VALVE AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK/BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L CAN I H CAN I L COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP COOLANT PUMP SWITCHOVER VALVE COOLANT TEMPERATURE SENSOR COOLANT THERMOSTAT HEATING ELEMENT ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE CONTROLS SYSTEM FRONT ELECTRICAL PREFUSE BOX FUSE 213 FUSE 216 FUSE 34 FUSE 5 GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LIN ME-SFI (ME) CONTROL UNIT ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PURGE CONTROL VALVE PWM REAR OF ENGINE COMPT) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE REFRIGERANT PRESSURE SENSOR SIG VEHICLE INTERIOR FUSE BOX YEL WIRE YEL/BLK WIRE

13 12 PNK WIRE BRN WIRE CAN-D H CAN-D L COMAND CONTROL UNIT (W/O NAVIGATION) RADIO (W/ NAVIGATION) DIAGNOSTIC CONNECTOR ELECTRONIC IGNITION SWITCH CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT ETH (-) ETH WS FUSE 87 GRN WIRE GRY WIRE GRY/WHT WIRE HERMES CONTROL UNIT HOT AT ALL TIMES ORG/YEL WIRE PNK WIRE RED WIRE RED/BLU WIRE TELEMATICS SERVICES COMMUNICATION MODULE VEHICLE INTERIOR FUSE BOX W/ EMERGENCY CALL SYSTEM W/ HERMES UMTS, LTE W/ HERMES UMTS, LTE, EMERGENCY CALL SYSTEM, TELEMATIC SERVICES W/ TELEMATIC SERVICES

BLK/GRY WIRE BLK/VIO WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SEAT CONTROL UNIT (UNDER DRIVER'S SEAT) FUSE 36 FUSE 46 FUSE 59 FUSE 60 FUSE 84 GRY/BLK WIRE HOT AT ALL TIMES LEFT FRONT BACKREST HEATED CUSHION LEFT FRONT SEAT ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD LEFT FRONT SEAT SITTING SURFACE HEATED CUSHION RED/BLK WIRE RED/BRN WIRE RED/WHT WIRE RIGHT FRONT BACKREST HEATED CUSHION RIGHT FRONT SEAT SITTING SURFACE HEATED CUSHION VEHICLE INTERIOR FUSE BOX W/ COMFORT PACKAGE W/O COMFORT PACKAGE

BLK WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L CENTER HORNS BUTTON COMPUTER DATA LINES SYSTEM DECOUPLING RELAY ENGINE COMPARTMENT FUSE, RELAY MODULE FANFARE HORN RELAY FRONT ELECTRICAL PREFUSE BOX FUSE 205 FUSE 32 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT FANFARE HORN LEFT FANFARE HORN SYSTEM BUTTON NCA WIRE RED WIRE REL FF RIGHT FANFARE HORN RIGHT FANFARE HORN SYSTEM BUTTON SAM CONTROL UNIT (LEFT END OF DASH) STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL CLOCK SPRING CONTACT STEERING WHEEL ELECTRONICS VEHICLE INTERIOR FUSE BOX W/O ECO START/STOP FUNCTION YEL WIRE YEL/BLK WIRE

BLU/WHT WIRE BRN WIRE BRN/WHT WIRE DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH DRIVER SEAT LUMBAR SUPPORT PNEUMATIC PUMP FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH FRONT PASSENGER SEAT LUMBAR SUPPORT PNEUMATIC PUMP FUSE 36 FUSE 46 HOT AT ALL TIMES RED WIRE RED/BLK WIRE RED/BLU WIRE SIG VEHICLE INTERIOR FUSE BOX WHT WIRE YEL WIRE

A DABIII A SDAR A TV 2 DAB BLU WIRE BLU/BLK WIRE BRN WIRE COMAND CONTROL UNIT DAB FM 2, DAB, TV 1 ANTENNA AMPLIFIER FM 2, DAB, TV 2 ANTENNA AMPLIFIER FUSE 105 GRN WIRE HOT AT ALL TIMES LVDS MOST DATA BUS CIRCUIT MOST IN MOST OUT MOST WS MULTI-FUNCTION ANTENNA NCA WIRE ORG/ WIRE REAR WINDOW ANTENNA RED/VIO WIRE SHIELD SOUND SYSTEMS TUNER UNIT TV 1 ANTENNA AMPLIFIER TV 1, DAB ANTENNA AMPLIFIER TV 2, DAB ANTENNA AMPLIFIER TV 3 ANTENNA AMPLIFIER VEHICLE INTERIOR FUSE BOX W/ DIGITAL RADIO W/ NAVIGATION WINDSHIELD ANTENNA