Draining and filling fuel tank - AR47.10-P-4001V

MODEL 171 with ENGINE 113.989, 271, 272 

Shown on ENGINE 272 

Fig 1: Identifying Service Valve, Valve Element And Pressure Hose - Shown On Engine 272

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Fuel Pump Relay, Spare Wheel Cover, Middle Trunk Lining And Expanding Rivets

Courtesy of MERCEDES-BENZ USA

	Remove
	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 fire, sparks, open flames or smoking. Pour fuels only into suitable and appropriately marked containers. Wear protective clothing when handling fuel.	-
1	Open fuel filler flap and filler cap	so that there is no vacuum in the fuel tank when pumping out the fuel.
	Risk of injury  caused by fingers being jammed or pinched  when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.	When moving components, ensure that no body parts or limbs are within the operating range of moving parts.	-
2	Open engine hood		AR88.40-P-1000V
3	Remove engine trim panel	-	-
		Engine 272	AR09.10-P-1150VA
		Engine 113.989	AR09.10-P-1150AC
4	Unscrew the cap from the service valve (2)	In engine 113.989, the service valve is located above the right cylinder bank.
5	Screw on the pressure hose (4) at the service valve (2) and release the fuel pressure	Use safety tank for collecting the fuel.
		Pressure hose	Figure
6	Unscrew the pressure hose (4) from the service valve (2)	Pressure hose	Figure
7	Unscrew valve element (3) and connect pressure hose (4) to the service valve (2) for pumping out the fuel	Use safety tank for collecting the fuel.
		Pressure hose	Figure
8	Pull out the fuel pump relay (N10/2kA)		AR07.52-P-5793V
	Draining
9	Bridge plug contacts 3 and 5 from the fuel pump relay (N10/2kA) and empty the fuel tank	Fuel tank capacity	*BF47.10-P-1001-01A
	Charging
10	Connect the grounding line of the suction master at the ground of the vehicle	Suction master	*WE58.40-Z-1001-22A
11	Pump fuel out of the safety tank through the filler hole into the fuel tank	Observe manufacturer's operating instructions and notes.
		Suction master	*WE58.40-Z-1001-22A
	Install
12	Remove grounding line of suction master from vehicle	Suction master	*WE58.40-Z-1001-22A
13	Install the fuel pump relay (N10/2kA)		AR07.52-P-5793V
14	Screw valve element (3) into service valve (2)	In engine 113.989, the service valve is located above the right cylinder bank.
15	Screw on cap at service valve (2)
16	Reinstall engine cover	-	-
		Engine 272	AR09.10-P-1150VA
		Engine 113.989	AR09.10-P-1150AC
	Risk of injury  caused by fingers being jammed or pinched  when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.	When moving components, ensure that no body parts or limbs are within the operating range of moving parts.	-
17	Close engine hood		AR88.40-P-1000V
18	Screw on filler cap and close fuel filler flap

Fig 3: Identifying Pressure Hose (119 589 04 63 00)

Courtesy of MERCEDES-BENZ USA