Mercedes-Benz A-class W177 (2018-2023) starter battery prefuse box Wiring diagrams

ALTERNATOR BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H STERN CAN B L CAN C H CAN C L CAN HMI H CAN HMI L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT PREFUSE BOX FUSE 2 GRN/WHT WIRE INSTRUMENT CLUSTER CONTROL UNIT LIN ME-SFI (ME) CONTROL UNIT NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY RED WIRE RED/WHT WIRE STARTER BATTERY PREFUSE BOX STARTER, ALTERNATOR CABLE CONNECTOR STARTING CIRCUIT VIO WIRE VIO/WHT WIRE WHT WIRE

BRN WIRE BRN/RED WIRE CAN B H CAN B L STERN CENTRAL CONTROL MODULE CLIMATE CONTROL OPERATING UNIT COMPUTER DATA LINES SYSTEM FUSE 121 FUSE 3 GRN/VIO WIRE HEATED REAR WINDOW RELAY HOT AT ALL TIMES NCA WIRE REAR WINDOW HEATER REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE REL (+) STARTER BATTERY PREFUSE BOX VEHICLE INTERIOR FUSE, RELAY MODULE (RIGHT FRONT FOOTWELL)

ADDITIONAL BATTERY ALL-WHEEL DRIVE CONTROL UNIT BACKUP RELAY BATTERY DISCONNECT SWITCH RELAY BRN WIRE CENTRAL CONTROL MODULE CIRCUIT 50 RELAY DC/AC CONVERTER CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE EXHAUST FLAP CONTROLLER FINE PARTICLE SENSOR FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FRONT VEHICLE INTERIOR POWER OUTLET HAND MOTION SENSOR LEFT FRONT LAMP UNIT MONO MULTI-FUNCTION CAMERA NCA WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PANORAMIC SLIDING ROOF CONTROL UNIT RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR WINDOW HEATER RIGHT REAR LAMP UNIT SOUND SYSTEM AMPLIFIER CONTROL UNIT SPRAY NOZZLE HOSE HEATER STARTER BATTERY PREFUSE BOX STATIONARY HEATER UNIT STEREO MULTI-FUNCTION CAMERA SUBWOOFER AMPLIFIER TRAILER RECOGNITION CONTROL UNIT TRANSMISSION OIL COOLING COOLANT CIRCULATION PUMP TRUNK LID/ LIFTGATE EMERGENCY OPENING BUTTON VOLTAGE DIP LIMITER W/ SMOKER'S PACKAGE W/ SOUND SYSTEM W/O SMOKER'S PACKAGE WIPER MOTOR

BLK/RED WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVE UNIT CONTROL UNIT DRIVETRAIN CONTROL UNIT (UNDER CENTER OF DASH) ENGINE COMPARTMENT PREFUSE BOX FLEX-E BM FLEX-E BP FUSE 149 FUSE 2 GRN/BLK WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED NCA WIRE PNK WIRE PNK/GRN WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE REL (+) SENS 1 STARTER BATTERY PREFUSE BOX VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE WHT/BLU WIRE