Remove/install a pressure sensor - AR07.04-P-0050RKA

ENGINE 276 in MODEL 231 

Shown on model 231 with engine 276.9 

Fig 1: Pressure Sensor Remove/Install Components - Shown On Model 231 With Engine 276.9

Courtesy of MERCEDES-BENZ USA

	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.	No parts of the body or limbs should be within the operating area when the components are moving.	AS00.00-Z-0011-01A
	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
	General information on work on gasoline direct injection system		AH07.00-P-2000-01A
	Remove/install
1	Detach ground line from battery		AR54.10-P-0003RK
	Notes on battery		AH54.10-P-0001-01A
2	Open engine hood
3.1	Remove upper engine cover (2)	ENGINE 276.9 in MODEL 231
3.2	Remove upper engine cover	ENGINE 276.8 in MODEL 231
4.1	Remove intake manifold (3)	ENGINE 276.9 in MODEL 231	AR09.20-P-1961RKA
4.2	Remove left-hand air filter housing	ENGINE 276.8 in MODEL 231	AR09.10-P-1150RKA
5	Remove soundproofing of rail (4)	ENGINE 276.8 in MODEL 231
6	Disconnect electrical connection (1) on fuel pressure and fuel temperature sensor (B4/25)
	Clean
7	Clean rail (4) in the area of the fuel pressure and temperature sensor (B4/25)	Assembly cleaner	*BR00.45-Z-1028-04A
8	Unscrew fuel pressure and temperature sensor (B4/25) from rail (4)	The fuel pressure and temperature sensor (B4/25) must be replaced after every disassembly. Pressure and temperature sensor to fuel distributor	*BA07.52-P-1002-01G
9	Install in the reverse order
10	Read out and clear fault memory using Star Diagnosis
			AD00.00-P-2000-04A
	Check
	Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
11	Check fuel system for leaks with engine running