Mercedes-Benz Metris W447 (2015-2024) firewall fuse, relay module Wiring diagrams

BACKUP BATT BLK/BLU WIRE BLK/ORG WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/ORG WIRE BLU/VIO WIRE BLU/WHT WIRE BR SL/LED-BR R BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/VIO WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE CONTROLS SYSTEM FIREWALL FUSE, RELAY MODULE FUSE 110 FUSE 236 FUSE 79 FUSE 80 GRN/PNK WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/VIO WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM LDS 2 SIG LDS 3 SIG LDS GND LWR LDS SIG NAVIGATION SYSTEM NAVIGATION, TRUNK, TAILGATE, FUEL DOORS, INTERIOR LIGHTS SYSTEMS NSW L ORG/ WIRE POWER DISTRIBUTION SYSTEM PREFUSE BOX RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/ORG WIRE RED/WHT WIRE RED/YEL WIRE REL EK D+ ABH REL ENTKOPPLG REL WI V E/A RFL R RIGHT END OF DASH) SIDEM R SIG LDS 1 SIGNAL ACQUISITION, ACTUATION MODULE (SAM) CONTROL UNIT STARTING/CHARGING SYSTEM TFL POS R TR SIG VIO/BLU WIRE WARMSTAR SIG WASCHW HI + WASCHW VO + WHT/BRN WIRE WHT/GRN WIRE WHT/YEL WIRE WIPER/WASHER SYSTEM ZV HKL -

ALARM SIREN W/ ADDITIONAL BATTERY BACKUP BATTERY BRN WIRE BRN/PNK WIRE BRN/VIO WIRE COLLISION WARNING SYSTEM RADAR SENSOR DRIVER SEAT HEATER/ VENTILATION CONTROL UNIT ECO START/STOP FUNCTION DIODE EMERGENCY-P BATTERY ENGINE COMPARTMENT FUSE, RELAY MODULE FIREWALL FUSE, RELAY MODULE FRONT END CAN (CAN G) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR FRONT PASSENGER FOOTWELL FUSE, RELAY MODULE FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH INTERIOR CAN (CAN B) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR NCA WIRE ON-BOARD ELECTRICAL SYSTEM BACKUP BATTERY RELAY PREFUSE BOX REAR PASSENGER COMPARTMENT SOCKET RELAY REAR WINDOW WIPER RELAY 2 RIGHT ADDITIONAL TURN SIGNAL LAMP RIGHT FOG LAMP RIGHT FRONT BRAKE WEAR SENSOR RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT LAMP UNIT RIGHT SLIDING DOOR (E-LSTR) CONTROL UNIT SIGNAL ACQUISITION, ACTUATION MODULE (SAM) CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM (SRS) CONTROL UNIT W/O ECO START/STOP FUNCTION W/O ECO START/STOP THEFT PROTECTION ANTI THEFT ALARM, ACTIVE PARKING SYSTEM WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT WHT WIRE WIPER MOTOR

AIR CONDITIONING CONTROL, OPERATING UNIT (FRONT, REAR KLA) BLK WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FIREWALL FUSE, RELAY MODULE FUSE 64 FUSE 65 HOT AT ALL TIMES HZG - LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR MIRROR HEATER RED/BLU WIRE RED/WHT WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR

A/T ASR OFF BUTTON AUTOMATIC CHILD SEAT RECOGNITION AIR BAG OFF INDICATOR LAMP AUTOMATIC CHILD SEAT RECOGNITION AIR BAG ON INDICATOR LAMP BBV 1 BLK WIRE BLU WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B H COC CAN B L CAN C H CAN C L CAN E H CAN E L COMPUTER DATA LINES SYSTEM COOLANT LEVEL INDICATOR SWITCH ECO START/STOP FUNCTION BUTTON FIREWALL FUSE, RELAY MODULE FSB FUEL LEV 1 FUEL PUMP W/ FILL LEVEL SENSOR FUEL SYSTEM CONTROL UNIT (FSCU) FUSE 110 FUSE 84 FUSE 88 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE HAZARD WARNING SYSTEM BUTTON HOT AT ALL TIMES INSTRUMENT CLUSTER (KI) CONTROL UNIT LEFT ELECTRIC SLIDING DOOR BUTTON M BFKS NAVIGATION SYSTEM NCA WIRE OUTSIDE TEMPERATURE SENSOR PARKING BRAKE INDICATOR SWITCH PASSENGER AIR BAG RED/GRY WIRE RED/YEL WIRE RIGHT ELECTRIC SLIDING DOOR BUTTON RIGHT END OF DASH) RIGHT FRONT BRAKE WEAR SENSOR SENS KWS - SIG AT SIG BFKS SIGNAL ACQUISITION, ACTUATION MODULE (SAM) CONTROL UNIT STATIONARY HEATER BUTTON TRANSMISSION MODE BUTTON UPPER CONTROL PANEL (UCP (OBF)) CONTROL UNIT VIO/WHT WIRE W/ ACTIVE PARKING ASSIST, LANE KEEPING ASSIST WHT WIRE WHT/BRN WIRE YEL/BRN WIRE

AUTOMATICALLY DIMMING INSIDE REAR VIEW MIRROR/ MIRROR TAXIMETER BLK/GRN WIRE BLK/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CARGO VAN COMPUTER DATA LINES SYSTEM FIREWALL FUSE, RELAY MODULE FRONT INTERIOR LAMP FRONT OF REAR DOME LAMP FUSE 101 FUSE 110 FUSE 34 FUSE 64 FUSE 65 FUSE 89 GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ HOT W/ CIRCUIT 15 RELAY ENERGIZED IL FOND + IL FOND 2+ IL FOND TA INTERIOR LAMP AUTOMATIC FUNCTION BUTTON INTERIOR LAMP BUTTON LEFT FRONT READING LAMP LEFT FRONT READING LAMP BUTTON LEFT MOUNTING CONSOLE INCIDENT ILLUMINATION LEFT REAR LOAD COMPARTMENT LAMP LIFTGATE AMBIENT ILLUMINATION LOAD COMPARTMENT WORK LAMP LED LIGHT STRIP NOT USED OVERHEAD CONTROL PANEL (OCP (DBE)) CONTROL UNIT PASSENGER VAN RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/ORG WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONT READING LAMP RIGHT FRONT READING LAMP BUTTON RIGHT MOUNTING CONSOLE INCIDENT ILLUMINATION RIGHT REAR LOAD COMPARTMENT LAMP SIG W/ 2 READING SPOTLAMPS W/ COMFORT OVERHEAD CONTROL PANEL W/ LED LIGHT STRIP IN LOAD W/ PANEL VAN INTERIOR, AMBIENT ILLUMINATION W/O 2 READING SPOTLAMPS W/O COMFORT OVERHEAD CONTROL PANEL W/O HEADLINER WHT WIRE YEL WIRE

BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAMERA COVER (KAB) CONTROL UNIT CAN B H CAN B H COC CAN B L COMPUTER DATA LINES SYSTEM ENDSCHL EXTERNAL OPERATION LIFTGATE OPEN SWITCH EXTERNAL OPERATION REVERSING CAMERA/360 DEGREE CAMERA LIFTGATE OPEN SWITCH FIREWALL FUSE, RELAY MODULE FUSE 108 FUSE 110 GRN/WHT WIRE HOT AT ALL TIMES LIFTGATE OPENING ASSIST MOT- RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT END OF DASH) SIGNAL ACQUISITION, ACTUATION MODULE (SAM) CONTROL UNIT VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE W/ BACKUP CAMERA W/O BACKUP CAMERA ZV HKL - ZV HKL AT

ALARM SIREN W/ ADDITIONAL BATTERY ANTI-THEFT ALARM SYSTEM (ATA (EDW)) CONTROL UNIT ANTI-THEFT ALARM SYSTEM READINESS INDICATOR BLK/GRN WIRE BLU/GRY WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B H COC CAN B L CARGO VAN COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FIREWALL FUSE, RELAY MODULE FRONT INTERIOR LAMP FUSE 101 FUSE 110 FUSE 201 GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HUMIDITY SENSOR/LIGHT SENSOR/RAIN SENSOR HUMIDITY SENSOR/LIGHT SENSOR/RAIN SENSOR/SUN SENSOR IL FOND + IL FOND 2+ IL FOND TA INTERIOR LAMP AUTOMATIC FUNCTION BUTTON INTERIOR LAMP BUTTON INTERIOR PROTECTION SENSOR INTERIOR PROTECTION SWITCH LEFT FRONT READING LAMP LEFT FRONT READING LAMP BUTTON LEFT MOUNTING CONSOLE INCIDENT ILLUMINATION MIRRORS SYSTEM OFF OVERHEAD CONTROL PANEL (OCP (DBE)) CONTROL UNIT REAR LAMP BUTTON RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/ORG WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT END OF DASH) RIGHT FRONT READING LAMP RIGHT FRONT READING LAMP BUTTON RIGHT MOUNTING CONSOLE INCIDENT ILLUMINATION SIG SIGNAL ACQUISITION, ACTUATION MODULE (SAM) CONTROL UNIT TOWING SENSOR BUTTON WHT WIRE YEL WIRE

BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/ORG WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE CAN B H CAN B L CHILD SAFE CINCH CLUTCH COMPUTER DATA LINES SYSTEM FIREWALL FUSE, RELAY MODULE FORK BOLT FRONT PASSENGER FOOTWELL FUSE, RELAY MODULE FUSE 311 FUSE 74 FUSE 84 GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT ELECTRIC SLIDING DOOR CENTRAL LOCKING ACTUATOR LEFT ELECTRIC SLIDING DOOR CENTRAL LOCKING W/ CLOSING ASSIST MAIN LOCK SWITCH LEFT ELECTRIC SLIDING DOOR DRIVE LEFT ELECTRIC SLIDING DOOR HANDLE OPERATION SWITCH LEFT SLIDING DOOR (E-LSTL) CONTROL UNIT LEFT SLIDING DOOR BUTTON LEFT SLIDING DOOR CLOSING ASSIST ACTUATOR LEFT SLIDING DOOR FRONT EDGE OBSTRUCTION SENSOR LOCK STATE NCA WIRE OUTER PAWL PRIM PAWL SEC PILLAR SW PINCH STRIP POWER CLOSE POWER OPEN RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SENS OUT 1 SENS OUT 2 SENS POWER SW CINCH SW CLOSE) SW OPEN UNLATCH VIO/BLK WIRE VIO/RED WIRE VIO/YEL WIRE W/O ACTIVE PARKING, LANE KEEPING ASSIST W/ ACTIVE PARKING, LANE KEEPING ASSIST WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE ZV LOCK ZV UNLOCK

AIR CONDITIONING CONTROL, OPERATING UNIT (FRONT, REAR KLA) BLK WIRE BRN WIRE FIREWALL FUSE, RELAY MODULE FUSE 35 GRY WIRE HEATED REAR WINDOW RELAY HOT AT ALL TIMES HSH RT LEFT REAR END DOOR REAR WINDOW HEATER PREFUSE BOX REAR WINDOW HEATER RED WIRE RIGHT REAR END DOOR REAR WINDOW HEATER W/ TWO LEAF REAR END DOOR W/O TWO LEAF REAR END DOOR

31 WSS BLK/PNK WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COC COMPUTER DATA LINES SYSTEM FIREWALL FUSE, RELAY MODULE FUSE 66 GRN/PNK WIRE GRN/VIO WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ LEFT REAR END DOOR WIPER MOTOR PNK/VIO WIRE PREFUSE BOX RED WIRE REL WI V E/A REL WI VSTUFE RELAY ENERGIZED RIGHT END OF DASH) RIGHT REAR END DOOR WIPER MOTOR SIG WSS SIGNAL ACQUISITION, ACTUATION MODULE (SAM) CONTROL UNIT VIO/BLU WIRE WASCHW HI + WASCHW HZG WASCHW VO + WHT/BRN WIRE WHT/RED WIRE WI H 1 RT WI HDT R WINDSHIELD WASHER SYSTEM WATER LEVEL INDICATOR SWITCH WIPER MOTOR