Remove/Install Fuel Level Sensor - AR47.50-P-0110RF

Engine 177, 274.9, 276.8, 642, 651.9 in model 253 

Shown on fuel display of right fuel tank fill level sensor (B4/2) with engine 177 

Fig 1: Fuel Level Sensor (B4/2) Components Location - Model 253 With Engine 177

Courtesy of MERCEDES-BENZ USA

Shown on right fill level sensor (B4/2) with engine 651 

Courtesy of MERCEDES-BENZ USA

	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
	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Remove/install
1	Remove fuel pump		AR47.20-P-5710RF
2	Unclip cover (1) and remove	Engine 642, 651.9 in model 253
3	Press catch springs together and remove right fill level sensor (B4/2) upward	Carefully remove right fill level sensor (B4/2) upward. If this is not observed, the linkage of the right fill level sensor (B4/2) will be damaged. The electrical contacts engage automatically when if the right fill level sensor (B4/2) is pushed in to the end stop.
4	Install in the reverse order