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Home >> Mercedes Benz >> 2018 >> GLC300 Base >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments - 253 Chassis - 5 Of 7 >> Wiring Diagrams >> Wiring Diagram Of 48V On-Board Electrical System >> Wiring Diagram Of 48V On-Board Electrical System - PE54.10-P-2008-97FCA

Wiring Diagram Of 48V On-Board Electrical System - PE54.10-P-2008-97FCA

Model 253 (except 253.99) as of model year 2020 with code B01 (48V technology) 

Code: Designation: Position:
AO Use of wiring diagrams 72L
B95 Battery sensor 4L
CAN L Hybrid CAN 65K
Code L LEFT-HAND DRIVE 18F
Code L LEFT-HAND DRIVE 23L
Code L LEFT-HAND DRIVE 49E
Code L LEFT-HAND DRIVE 57C
Code R RIGHT-HAND DRIVE 23L
Code R RIGHT-HAND DRIVE 18G
Code R RIGHT-HAND DRIVE 49F
Code R RIGHT-HAND DRIVE 57C
F1/3 Passenger-side A-pillar fuse box 44L
F1/3 Passenger-side A-pillar fuse box 61L
F1/3MF2 Multiple fuse 2 59K
F1/3f301 Fuse 301 43L
F153/2 Engine compartment 48V fuse box 48L
F153/2MF1 48 V on-board electrical system electric multicircuit fuse 46K
F153/2f854 Electrical fuse 854 50K
F153/2f855 Electrical fuse 855 49K
F32/3 Engine compartment prefuse box 4A
F32/3 Engine compartment prefuse box 12A
F32/3f13 Fuse 13 12B
F63 Pyrofuse 39L
G1 On-board electrical system battery 2L
G1/3 48 V on-board electrical system battery 17J
K40/5 Rear fuse and relay module 31L
K40/5f413 Fuse 413 30L
K57/4 Battery disconnect switch relay 9D
LIN B15 Battery sensor LIN 14K
LIN B22 48 V on-board electrical system LIN 18J
M1/10 Starter-alternator 54L
N10/6 Front SAM control unit 7L
N10/6 Front SAM control unit 11L
N10/8 Rear SAM control unit 26L
N2/10 Supplemental restraint system control unit 34L
N73 Electronic ignition switch control unit 9L
N83/1 DC/DC converter control unit 15L
W10/6 Rear battery ground point 4H
W106/2 48 V on-board electrical system battery ground point, left 24L
W106/3 48 V on-board electrical system battery ground point, right 24L
W16 Major assembly compartment ground point 19G
W16/4 Right major assembly compartment ground point 19F
W16/5 Left major assembly compartment electronics ground point 58C
W16/7 Right major assembly compartment electronics ground point 58C
W30/11 Underbody tml. 41 ground point 52H
X18 Cockpit wiring harness and frame floor assembly electrical connector 37H
X18 Cockpit wiring harness and frame floor assembly electrical connector 39H
X18 Cockpit wiring harness and frame floor assembly electrical connector 41H
X244/1 Firewall through-hole plating electrical connector 50F
X244/2 Right vehicle-end busbar stud 1 50E
X244/4 Right engine-end busbar stud 1 50D
X26 Interior and engine wiring harness electrical connector 54E
X30/44 Hybrid CAN (CAN L) potential distributor electrical connector 65L
X30/92 Circuit 31 potential distributor 1 57L
X4/4 Terminal block (circuit 30) 1G
Z54/16z2 LIN B15 connector sleeve 7G
G12938503Courtesy of MERCEDES-BENZ USA
G12938504Courtesy of MERCEDES-BENZ USA
G12938505Courtesy of MERCEDES-BENZ USA
G12938506Courtesy of MERCEDES-BENZ USA