Remove/Install Left High-Pressure Fuel Pump - AR07.02-P-1023MNM

Engine 177 in model 217, 222 

Fig 1: High-Pressure Fuel Pump (Left) Component Location - Engine 177 In Model 217

Courtesy of MERCEDES-BENZ USA

	Risk of explosion  caused by fuel igniting. Risk of injury  to skin and eyes caused by fuel spraying out at high pressure	Keep all ignition sources out of hazard area. Do not carry out any work on system when it is pressurized.	AS07.16-Z-0001-01A
	Risk of explosion  caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contact with fuel.	No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. Wear protective clothing when handling fuel.	AS47.00-Z-0001-01A
	Risk of injury.  Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Risk of injury  to skin and eyes due to handling of engine oil. Risk of poisoning  caused by swallowing engine oil	Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers.	AS18.00-Z-0001-01A
	Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
Topical note	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	General information on work on gasoline direct injection system		AH07.00-P-2000-01A
	Remove/install
1	Remove left high-pressure line		AR07.03-P-1001MNM
2	Remove left low-pressure line with service connection (1), and place to one side with hose connection connected		AR07.03-P-1121MNM
3	Release and disconnect electrical connection (3)
4	Clean area around fuel system high-pressure pump (2)	Thoroughly clean area around fuel system high-pressure pump (2) at points to be disconnected. Failure can occur otherwise to the fuel system. Assembly cleaner	*BR00.45-Z-1028-04A
5	Remove screws/bolts (4) and remove fuel system high-pressure pump (2) upwards	Unscrew and screw in screws (4) alternately by half a revolution in each case. Damage could occur to the fuel system high pressure pump (2) otherwise. Replace seal. Bolt, fuel system high pressure pump to cylinder head	*BA07.02-P-1001-01E
6	Install in the reverse order
7	Read out and erase fault memory
			AD00.00-P-2000-04B
8	Check fuel high-pressure circuit for leaktightness		AR07.03-P-1010-04MM
			AD00.00-P-2000-04B

INJECTION PUMP, HIGH-PRESSURE FUEL PUMP

Number	Designation		Engine 177
BA07.02-P-1001-01E	Bolt, fuel system high pressure pump to cylinder head	Nm	14

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1028-04A	Assembly cleaner	A 000 986 56 01