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Electrical function schematic for lambda control - PE07.10-P-2710-97DAB

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ENGINE 272, 273 in MODEL 212 except engine 272.98 

Code: Designation: Position:
1 Engine diagnosis indicator lamp, actuation 4H
A1 Instrument cluster 4J
A1e58 Engine diagnosis indicator lamp 2H
B11/4 Coolant temperature sensor 1F
B2/5 Hot film mass air flow sensor 4C
CAN E Chassis CAN 4G
G3/3 Left oxygen sensor upstream of catalytic converter 7F
G3/4 Right oxygen sensor upstream of catalytic converter 7F
G3/5 Left oxygen sensor downstream of catalytic converter 7F
G3/6 Right oxygen sensor downstream of catalytic converter 7F
N3/10 ME-SFI [ME] control unit 4E
U484 Valid for gasoline engine 273 1C
Y62/1 Cylinder 1 injection valve 2B
Y62/2 Cylinder 2 injection valve 2B
Y62/3 Cylinder 3 injection valve 2B
Y62/4 Cylinder 4 injection valve 2B
Y62/5 Cylinder 5 injection valve 2C
Y62/6 Cylinder 6 injection valve 2C
Y62/7 Cylinder 7 injection valve 2D
Y62/8 Cylinder 8 injection valve 2D
Fig 1: Lambda Control Electrical Function Diagram
G10242431Courtesy of MERCEDES-BENZ USA