Mercedes·B250E·2016 Mercedes B250e·Wiring
Wiring diagram

2016 Mercedes B250e — power distribution

Sheets 6Labels 1249

Power distribution

M (-) (+) 30 (+) (OR 5A) B (OR 5A) (OR 5A) (OR 7.5A) 30A 100A L N/A C 30A 5A 20A 25A 7.5A 7.5A 10A F 30A G 7.5A 7.5A 200A 20A 25A N/A 30A 10A 7.5A 40A 30 (-) (+) 30G 5A 5A 150A 5A 30A 30A 200A N/A N/A 400A 80A 40A SAM CONTROL UNIT VEHICLE INTERIOR FUSE BOX SAM CONTROL UNIT PARK PAWL ACTUATOR MOTOR CIRCUIT 87 RELAY SAM CONTROL UNIT UHI 10 1 C2 A8 C1 S20 5 P4 S19 A2 A7 S25 S24 S23 S21 S18 S3 S3 7 S5 E1 3 2 B2 21 P3 3 PW2 4 X25/14-C1 12 S10 34 31 32 B2 33 S2 1 7 S1 A1 A2 5 S5 6 6 7 4 6 8 P3 2 6 5 11 4 3 E1 A1 A5 E2 A4 A3 A6 RED/BLK GRN/RED BLU/WHT BLU/WHT BRN RED/WHT RED/YEL RED/YEL RED/BLK RED/BLU RED/VIO RED/WHT RED RED GRN/BRN WHT/BRN WHT/RED (OR GRN) RED/YEL RED/YEL VIO/RED VIO/RED RED/BLU (OR RED/GRN) RED/BLU RED/YEL RED/GRY RED/WHT (OR RED/YEL) RED RED NCA BRN BLK RED RED RED RED/GRN RED RED/BLK RED RED RED RED/YEL FRONT ELECTRICAL PREFUSE BOX FUSE 5 FUSE 8 FUSE 3 FUSE 4 FUSE 7 FUSE 1 FUSE 6 FUSE 2 ON BOARD ELECTRICAL SYSTEM BATTERY BATTERY SENSOR CIRCUIT 30G RELAY FUSE 75 FUSE 76 FUSE 59 FUSE 27 FUSE 22 FUSE 61 FUSE 55 FUSE 77 FUSE 56 FUSE 54 FUSE 57 FUSE 21 FUSE 74 FUSE 58 FUSE 62 FUSE 73 FUSE 63 FUSE 34 FUSE 38 FUSE 37 FUSE 39 FUSE 32 FUSE 98 FUSE 33 FUSE 36 (LEFT SIDE OF ENGINE COMPT) (RIGHT FRONT FOOTWELL) (LEFT SIDE OF ENGINE COMPT) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) & (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) & (IF EQUIPPED) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) & (W/ MEMORY) W10 ELECTRICAL POWER STEERING CONTROL UNIT FAN MOTOR TO DC/DC CONVERTER CONTROL UNIT (DIAGRAM 6 OF 6) TO ENGINE COMPARTMENT FUSE & RELAY MODULE (DIAGRAM 2 OF 6) TO FUSE 60 (DIAGRAM 5 OF 6) FRONT PASSENGER SEAT CONTROL UNIT SOUND SYSTEM AMPLIFIER CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT ECO START/ STOP FUNCTION ADDITIONAL BATTERY RELAY TRAILER RECOGNITION CONTROL UNIT TRAILER RECOGNITION CONTROL UNIT TRAILER RECOGNITION CONTROL UNIT KEYLESS-GO CONTROL UNIT TO ENGINE COMPARTMENT FUSE & RELAY MODULE (DIAGRAM 3 OF 6) PARK PAWL CONTROL UNIT BATTERY MANAGEMENT SYSTEM CONTROL UNIT TO FUSE 47 (DIAGRAM 3 OF 6) TO FUSE 109 (DIAGRAM 2 OF 6) STEERING COLUMN MODULE CONTROL UNIT OVERHEAD CONTROL PANEL CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT AUDIO/ COMAND CONTROL PANEL GATEWAY FOR POWERTRAIN CONTROL UNIT SPECIAL-PURPOSE VEHICLE MULTI-FUNCTION CONTROL UNIT AUTOMATIC AIR CONDITIONING CONTROL & OPERATING UNIT AUDIO/ COMAND DISPLAY DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT ELECTRIC PARKING BRAKE CONTROL UNIT DRIVER SEAT CONTROL UNIT
30 30 E 30 30 5A 40A (+) 5A 30 J D 30A 20A 5A 10A 5A 10A 7.5A 5A 5A 10A 5A 10A 40A 40A 40A C A L 5A 7.5A 5A 5A 5A 5A (+) 30 87 (-) 40A 5A 7.5A 25A 30 30 (-) 30 15 (+) 40A 5A 15A VEHICLE INTERIOR FUSE BOX SAM CONTROL UNIT FANFARE HORN RELAY WINDSHIELD WIPER ON/OFF RELAY HEATED WINDSHIELD RELAY BRAKE BOOSTER VACUUM PUMP SUPPLY RELAY BACKUP RELAY SAM CONTROL UNIT ENGINE COMPARTMENT FUSE & RELAY MODULE PARK PAWL CONTROL UNIT CIRCUIT 87 RELAY TERMINAL 87T RELAY SAM CONTROL UNIT 1 PW2 MR1 13 S14 MR2 4 S4 4 MR1 7 MR2 7 S5 S4 5 1 2 P4 1 2 3 5 P3 1 14 12 10 8 7 6 5 P1 S29 PW1 3 2 S27 S28 UH2 5 6 3 7 S4 3 1 2 S3 4 E1 S13 S1 1 S12 S6 11 9 S3 RED/GRN RED RED/BLU RED/ORG (OR RED/BLK) RED RED/YEL RED/YEL RED/WHT RED/GRY RED/BLK RED/VIO RED/BLU RED/BLU RED/BLK BLU/GRN BLK/GRY BLK/BLU BLK/YEL BLK/RED RED/GRN BLK/VIO ORG/BLU BRN/RED BLU/VIO BRN RED/YEL RED/YEL RED/YEL BRN RED NCA RED/GRY RED/WHT BLK BLK/BLU BRN FUSE 103 FUSE 109 FUSE 102 FUSE 83 FUSE 82 FUSE 88 FUSE 110 FUSE 80 FUSE 87 FUSE 81 FUSE 84 FUSE 101 FUSE 86 FUSE 79 FUSE 85 CHARGING SOCKET ELECTRICAL CONNECTOR CIRCUIT 15 RELAY (UNLATCHED) FUSE 204 FUSE 240A FUSE 237 FUSE 232 CIRCUIT 15 RELAY FUSE 225 FUSE 221 FUSE 227 FUSE 226 FUSE 201 FUSE 231 FUSE 229 FUSE 224 FUSE 228 FUSE 236 FUSE 230 FUSE 202 (RIGHT FRONT FOOTWELL) (RIGHT SIDE OF LUGGAGE COMPT) (LEFT REAR OF ENGINE COMPT) (LEFT REAR OF ENGINE COMPT) (LEFT SIDE ENGINE COMPT) (NOT USED) (NOT USED) (NOT USED) (W/ EMERGENCY VEHICLES) (NOT USED) (W/ ACOUSTIC AMBIENT PROTECTION) W7 W3/2 W3/2 TO CIRCUIT 15R2 RELAY (DIAGRAM 3 OF 6) FROM PARK PAWL ACTUATOR MOTOR CIRCUIT 87 RELAY (DIAGRAM 1 OF 6) AC HOUSING DIAGNOSTIC CONNECTOR INSTRUMENT CLUSTER ATA (EDW)/ TOWING SENSOR/ INTERIOR MOTION SENSOR CONTROL UNIT FM, AM & CL (ZV) ANTENNA AMPLIFIER UPPER CONTROL PANEL CONTROL UNIT OVERHEAD CONTROL PANEL CONTROL UNIT TELEMATICS SERVICES COMMUNICATION MODULE & EMERGENCY CALL SYSTEM CONTROL UNIT TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 5 OF 6) TO FUSE 234 (DIAGRAM 3 OF 6) HEADLAMP CONTROL UNIT VACUUM PUMP DRIVETRAIN CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT DRIVETRAIN CONTROL UNIT FROM FRONT ELECTRICAL PREFUSE BOX (DIAGRAM 1 OF 6) COLLISION PREVENTION ASSIST CONTROLLER UNIT & DISTRONIC ELECTRONIC CONTROLLER UNIT LEFT FRONT LAMP UNIT ELECTRIC VEHICLE SOUND GENERATOR RIGHT FRONT LAMP UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT POWER ELECTRONICS CONTROL UNIT & CHARGER CONTROL UNIT POWER ELECTRONICS CONTROL UNIT STATIONARY HEATER UNIT
1 2 1 2 P (OR 2.5A) N N/A 87C (+) 30 7.5A H 5A 5A 7.5A 40A 40A 5A 7.5A 30A N/A 25A G 5A 30 K J 25A 25A 25A N/A (-) 15R2 (+) 30 F A 5A 25A N/A 7.5A N/A (-) 30 87 87C 10A 7.5A ENGINE COMPARTMENT FUSE & RELAY MODULE TERMINAL 87C RELAY VEHICLE INTERIOR FUSE BOX VEHICLE INTERIOR FUSE BOX HEATED REAR WINDOW RELAY SAM CONTROL UNIT S3 5 MR1 5 9 S4 1 P3 13 7 S16 S14 S13 S12 S3 1 S2 6 S17 7 5 1 3 2 X138/1-C1 P2 2 1 3 1 3 S5 S4 14 5 1 3 2 1 7 6 B2 17 3 S8 7 S2 6 MR2 S3 7 6 S15 RED/BLK (OR RED/YEL) BLK/WHT RED/GRN RED/BLK RED/BLK BRN RED/PNK RED/BLU RED/BLU RED/WHT RED/BLK RED/BRN (OR RED/BLU) RED/BLK RED/BRN RED/WHT RED BRN BLK GRY/BLU BRN BLK BLK/WHT BRN BRN BLK/WHT BRN BLK/GRN BRN/GRN BLK/GRN BLK/WHT BLK RED RESERVE FUSE 235 FUSE 234 CIRCUIT 87 RELAY RESERVE FUSE 216 FUSE 222 FUSE 241 FUSE 218 FUSE 217 RESERVE FUSE 233 FUSE 46 FUSE 47 FUSE 40 FUSE 44 FUSE 42 FUSE 100 FUSE 49 FUSE 43 FUSE 97 FUSE 45 FUSE 41 FUSE 48 CIRCUIT 15R2 RELAY FUSE 69 FUSE 71 FUSE 72 FUSE 70 FRONT CIGAR LIGHTER W/ ASHTRAY ILLUMINATION ASHTRAY ILLUMINATION CIGARETTE LIGHTER HEATING ELEMENT REAR CENTER CONSOLE POWER OUTLET VEHICLE INTERIOR POWER OUTLET LUGGAGE COMPARTMENT SOCKET (LEFT SIDE ENGINE COMPT) (RIGHT FRONT FOOTWELL) (RIGHT FRONT FOOTWELL) (UNDER LEFT FRONT OF CENTER CONSOLE) (UNDER LEFT FRONT OF CENTER CONSOLE) (UNDER LEFT FRONT OF CENTER CONSOLE) (LEFT REAR OF ROOF) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) (W/O AUDIO 20) (W/ MEMORY) (IF EQUIPPED) (W/ AUDIO 20) (W/ PRE-SAFE) (W/ PRE-SAFE) (IF EQUIPPED) & W/ ASHTRAY PACKAGE/SMOKER PACKAGE W/O ASHTRAY PACKAGE/SMOKER PACKAGE (W/O MEMORY) (NOT USED) W12 W12 W12 W48 FROM CIRCUIT 15 RELAY (DIAGRAM 2 OF 6) DUAL CLUTCH TRANSMISSION FULLY INTEGRATED CONTROL UNIT DUAL CLUTCH TRANSMISSION FULLY INTEGRATED CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ELECTRIC REFRIGERANT COMPRESSOR FROM VEHICLE INTERIOR FUSE BOX (DIAGRAM 1 OF 6) TO HIGH-VOLTAGE POWER DISTRIBUTOR (DIAGRAM 6 OF 6) HIGH-VOLTAGE PTC HEATER TO FUSE 99 (DIAGRAM 4 OF 6) FROM FUSE 39 (DIAGRAM 1 OF 6) MOBILE PHONE CONTACT PLATE RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR PANORAMIC SLIDING ROOF CONTROL MODULE FRONT PASSENGER SEAT CONTROL UNIT DRIVETRAIN CONTROL UNIT COMAND CONTROL UNIT DRIVE KIT CONTROL UNIT FOR IPHONE RADIO FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT COMAND FAN MOTOR TO CIRCUIT 15R1 RELAY (DIAGRAM 4 OF 6) FROM FUSE 79 (DIAGRAM 2 OF 6) TO CIRCUIT 15R1 RELAY (DIAGRAM 4 OF 6) INTERIOR LIGHTS SYSTEM
5A P K 7.5A N/A 15A N/A 5A 1A 5A 5A 7.5A 5A 5A 5A 5A 5A 15A 15R1 15A 5A (-) 15R1 (+) 30 (-) 15 (+) 30 5A 5A 5A 5A 5A H VEHICLE INTERIOR FUSE BOX REAR WINDOW WIPER RELAY SAM CONTROL UNIT 4 S4 P2 4 5 3 4 2 S4 1 6 8 2 10 P2 12 14 4 S1 3 S1 2 5 P2 P1 P2 1 1 9 B2 12 48 9 10 P4 6 8 3 P3 9 BLK/WHT BLK/YEL BLK/YEL BLK/YEL BLK/BLU RED/BLU RED/GRN RED/VIO RED/PNK BRN RED/YEL BLK/GRN BLK/BLU (OR BLK/GRY) BLK/GRY BLK/VIO BLK BLK BLK BLK/GRN BLK RED/GRY CIRCUIT 15 RELAY CIRCUIT 15R1 RELAY FUSE 96 FUSE 65 FUSE 90 FUSE 89 FUSE 91 FUSE 30 FUSE 31 FUSE 29 FUSE 28 FUSE 93 FUSE 94 FUSE 92 FUSE 64 FUSE 95 FUSE 66 FUSE 99 FUSE 67 FUSE 107 FUSE 68 FUSE 106 FUSE 107 FUSE 105 FUSE 104 (RIGHT FRONT FOOTWELL) (RIGHT FRONT FOOTWELL) (NOT USED) (IF EQUIPPED) (W/ TRAILER HITCH) (W/ TRAILER HITCH) (W/ DRIVING SCHOOL PACKAGE) & (W/ DRIVING SCHOOL PACKAGE) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (W/ ELECTRONIC INTERFACE, CUSTOMER REQUESTED) (W/ AUTOMATIC CHILD SEAT RECOGNITION) & (IF EQUIPPED) W15/1 FROM HEATED REAR WINDOW RELAY (DIAGRAM 3 OF 6) FROM CIRCUIT 15R2 RELAY (DIAGRAM 3 OF 6) THERMAL MANAGEMENT CONTROL UNIT GLOVE BOX LAMP TRAILER RECOGNITION CONTROL UNIT BATTERY MANAGEMENT SYSTEM CONTROL UNIT LEFT REAR BUMPER INTELLIGENT RADAR SENSOR & RIGHT REAR BUMPER INTELLIGENT RADAR SENSOR TRAILER RECOGNITION CONTROL UNIT EXTERIOR LIGHTS SWITCH TAILGATE WIPER MOTOR PEDAL OPERATOR MONITOR SWITCH FOOTWEEL ILLUMINATION SWITCH FROM FUSE 97 (DIAGRAM 3 OF 6) TIRE PRESSURE MONITOR CONTROL UNIT BACKUP CAMERA SPECIAL- PURPOSE VEHICLE INTERFACE FRONT PASSENGER SEAT OCCUPIED RECOGNITION & ACSR ELECTRIC PARKING BRAKE CONTROL UNIT MEDIA INTERFACE CONTROL UNIT & MULTIMEDIA CONNECTION UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT GATEWAY FOR POWERTRAIN CONTROL UNIT MULTIFUNCTION CAMERA TUNER UNIT WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT
1 2 1 2 3 4 3 4 D B E CAN E2 L 31 CAN D H CAN D L A HF CAN E2 H CAN B L CAN B H CAN E1 H CAN E1 L 30 AUX (+) FT DF 31 30B 10A 30A 30A 30A 40A 30A SAM CONTROL UNIT VEHICLE INTERIOR FUSE BOX SAM CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT FM, AM & CL (ZV) ANTENNA AMPLIFIER 1 PW1 X4/48-C1 3 42 B2 11 X35/1-C2 C1 3 12 11 10 9 C1 8 7 5 6 4 3 2 1 X25/13-C1 1 2 5 C3 3 C3 8 7 5 6 4 3 2 1 P1 13 S9 S8 S7 S6 S26 S22 (OR RED/YEL) RED RED/YEL RED RED/WHT (OR RED/GRN) RED/BLK RED/GRN RED RED BRN RED RED RED RED RED RED BLU BLU/BLK ORG BRN/RED BLU BLU/WHT GRY GRY/WHT BRN ORG BRN GRN/WHT GRN BLU/BLK BLU RED/YEL BLU/BLK BLU BRN RED BRN RED RED/WHT RED FUSE 26 FUSE 23 FUSE 25 FUSE 60 FUSE 24 FUSE 78 ADDITIONAL BATTERY ECO START/STOP FUNCTION ADDITIONAL BATTERY ELECTRONIC IGNITION SWITCH CONTROL UNIT (RIGHT FRONT FOOTWELL) (RIGHT FRONT FOOTWELL) (LEFT FRONT OF RIGHT FRONT FOOTWELL) (UNDER LEFT FRONT OF CENTER CONSOLE) (UNDER LEFT FRONT OF CENTER CONSOLE) (W/ MEMORY) W/ ECO START/STOP FUNCTION W/O ECO START/STOP FUNCTION W/ DUAL CLUTCH TRANSMISSION W/O DUAL CLUTCH TRANSMISSION W83/2 W15/1 W12 W12 FROM FUSE 56 (DIAGRAM 1 OF 6) TRUNK LID/ LIFT GATE CONTROL UNIT DRIVER SEAT CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR CONTROL UNIT ECO START/ STOP FUNCTION ADDITIONAL BATTERY RELAY FROM VEHICLE INTERIOR FUSE BOX (DIAGRAM 2 OF 6) FROM VEHICLE INTERIOR FUSE BOX (DIAGRAM 2 OF 6) COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM
N 30 30C N/A POT C SIG C SIG HV (-) HV (+) SHD SHD M LV (+) 31 DC F CAN EL L CAN EL H HV (+) HV (-) HV (+) HV (-) SHD HV (-) HV (+) SHD POT 40A 50A HV (-) SHD SHD HV (-) HV (+) SHD SHD HV (+) 40A HV (+) HV (-) SHD SHD HV (-) SHD HV (+) SHD 35A X241-C3 2 POT 4 LV 10 12 5 11 3 6 HV5 9 S+ - + S- LV (+) GND POT 5 1 2 4 6 3 7 LV - HV S- LV 8 9 + S+ 8 S- - HV2 HV3 S+ + - S- + HV4 + S- - HV1 2 LV S+ S- - + S+ S+ RED/WHT NCA NCA NCA NCA NCA NCA NCA ORG ORG NCA NCA RED/BLK RED/WHT WHT/GRN VIO/BLU RED NCA NCA NCA NCA RED/BLK NCA NCA YEL YEL ORG NCA ORG NCA NCA NCA ORG NCA NCA NCA ORG NCA ORG NCA ORG NCA NCA NCA YEL/BRN ORG ORG ORG ORG ORG NCA ORG NCA NCA YEL ORG NCA NCA NCA NCA ORG NCA HIGH-VOLTAGE POWER DISTRIBUTOR FUSE 751 FUSE 752 FUSE 754 FUSE 753 SWITCH CONTACT FUSE 755 DC/DC CONVERTER CONTROL UNIT (BELOW ONBOARD CHARGER) (BELOW REAR OF ONBOARD CHARGER) W1 W1 CHARGER CONTROL UNIT HIGH-VOLTAGE PTC HEATER BATTERY MANAGEMENT SYSTEM CONTROL UNIT CHARGER CONTROL UNIT ELECTRIC REFRIGERANT COMPRESSOR POWER ELECTRONICS CONTROL UNIT HIGH-VOLTAGE BATTERY COOLANT CIRCUIT HEATING ELEMENT HIGH-VOLTAGE DISCONNECT DEVICE SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT FROM ENGINE COMPARTMENT FUSE & RELAY MODULE (DIAGRAM 3 OF 6) ENGINE CONTROLS SYSTEM FROM FRONT ELECTRICAL PREFUSE BOX (DIAGRAM 1 OF 6) THERMAL MANAGEMENT CONTROL UNIT ENGINE CONTROLS SYSTEM COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM