Remove/install fuel pump control unit - AR47.20-P-5717GZS (ML63 AMG)

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ENGINE 156.980 in MODEL 164.177

Fig 1: Identifying Fuel Pump Control Unit Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
	Notes on avoiding damage to electronic components due to electrostatic discharge	All models	AH54.00-P-0001-01A
1	Fold rear seat to the front	Knock underlying sound deadening mat to rear.
2	Disconnect electrical connectors (1) at fuel system control unit
3	Unscrew fuel system control unit from carrier plate	Loosen nuts (2) and bolts (3) and remove left fuel pump control unit (N118/3) and right fuel pump control unit (N118/4).
4	Install in the reverse order
5	Actuate control unit for fuel system using STAR-DIAGNOSIS	Activation must be conducted otherwise malfunctions can occur.
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnostic system	*WH58.30-Z-1048-13A

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1048-13A	STAR DIAGNOSIS diagnostic system, Compact Passenger Car	6511 1801 00