Removing and installing fuel level sensor - AR47.10-P-7000V

MODEL 171 with ENGINE 113.989, 271, 272 

Fig 1: Identifying Fuel Level Sensor Components

Courtesy of MERCEDES-BENZ USA

	Remove/Install
	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.	-
1.1	Close Vario roof	With Vario roof open. The fuel level sensor (B4) can only be removed if Vario roof is closed.
2	Empty fuel tank		AR47.10-P-4001V
		Fuel tank capacity	*BF47.10-P-1001-01A
3	Remove top fuel tank cover		AR64.20-P-1080V
4	Remove fuel filter		AR47.20-P-5510V
5	Press together catch springs (3) and detach fuel level sensor (B4) toward top	Ensure that the linkage of the fuel level sensor (B4) is not bent. Installation:  The electrical contacts latch automatically, if the fuel level sensor (B4) is pushed in up to the stop.
6	Install in the reverse order

FUEL TANK

Number	Designation			Model 171
BF47.10-P-1001-01A	Fuel tank capacity	Total capacity	Liters	70
		Reserve capacity	Liters	9