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Electrical function schematic for fuel supply - PE07.10-P-2703-97DAR

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ENGINE 651.9 as of 3/1/13 in MODEL 212 (except 212.098/298) 

Code: Designation: Position:
1 Fuel pump, request ON 8C
1 Fuel pump, request ON 6C
10 Pressure regulator valve, actuation 10E
11 Quantity control valve, actuation 9G
12 Fuel temperature sensor, signal 8E
13 Rail pressure sensor, signal 6H
14 Accelerator pedal sensor, signal 5G
15 Fuel injectors, actuation 4E
16 Fuel tank pressure sensor, signal 8B
17 Circuit 87, status 7H
18 Combustion engine circuit 87 relay, actuation 7K
18 Combustion engine circuit 87 relay, actuation 7L
2 Fuel pump, specified pressure request 8D
3 Fuel pump, actuation 5B
5 Instrument cluster, message 11K
5 Instrument cluster, message 8J
8 Condensation sensor for fuel filter with heating element, signal 5F
8 Condensation sensor for fuel filter with heating element, signal 2J
9 Fuel preheating system heating element, actuation 3G
9 Fuel preheating system heating element, actuation 2J
A1 Instrument cluster 13J
A1p13 Multifunction display 14J
B37 Accelerator pedal sensor 4H
B4/6 Rail pressure sensor 5J
B4/7 Fuel pressure sensor 10B
B50 Fuel temperature sensor 9E
B76/1 Condensation sensor for fuel filter with heating element 2K
CAN C Drive train CAN 7D
CAN E1 Chassis CAN 1 8H
CAN E2 Chassis CAN 2 10K
Code 494 USA version 6G
LIN C1 Drive train LIN 4G
M3 Fuel pump (FP) 4B
N10/1 Front SAM control unit with fuse and relay module 8J
N10/1kN Engine circuit 87 relay 7J
N118 Fuel pump control unit 7A
N14/3 Glow output stage 2G
N3/9 CDI control unit 7E
Y74 Pressure regulator valve 10E
Y76/1 Cylinder 1 fuel injector 3E
Y76/2 Cylinder 2 fuel injector 3F
Y76/3 Cylinder 3 fuel injector 3F
Y76/4 Cylinder 4 fuel injector 3F
Y94 Quantity control valve 9G
Fig 1: Fuel Supply Electrical Function Diagram
G00565301Courtesy of MERCEDES-BENZ USA