Remove/Install Left Fuel Pressure Sensor - AR07.04-P-0201MNO

Engine 176, 177 In Model 167 

Shown on Engine 176 In Model 167 

Fig 1: Left Fuel Pressure Sensor Components Location - Engine 176 In Model 167

Courtesy of MERCEDES-BENZ USA

Shown on Engine 177 In Model 167 

Fig 2: Left Fuel Pressure Sensor Components Location - Engine 177 In Model 167

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
	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
Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Topical note	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	General information on work on gasoline direct injection system		AH07.00-P-2000-01A
	Remove/install
1	Disconnect the ground line for the on-board electrical system battery (G1).		AR54.10-P-0003ME
2.1	Remove left air filter housing.	Engine 176 in model 167	AR09.10-P-1151MNO
2.2	Remove the bracket of the low-temperature circuit coolant expansion reservoir.	Engine 177 in model 167	AR09.41-P-0017MNP
3	Remove noise insulation above left low-pressure line.
4	Remove fuel pressure via the service connection.		AR07.03-P-1460-01MNL
		Dust protection cap to service connection	*BA07.03-P-1005-01H
		Pressure hose	Fig 4
5	Release and disconnect electrical connector on left fuel pressure and temperature sensor (B42/2).
6	Clean rail in area of left fuel pressure and temperature sensor (B42/2).	Absolute cleanliness must be ensured when working on high-pressure fuel circuit. Use only lint-free cleaning cloths High-pressure fuel circuit will otherwise be damaged. Assembly cleaner	*BR00.45-Z-1028-04A
7	Cover area around left fuel pressure and temperature sensor (B42/2) with suitable rags and carefully slightly release left fuel pressure and temperature sensor (B42/2).	Wear oil-resistant, fiber-free gloves lined with rubber. Box wrench attachment, 27_mm	Fig 3
8	Remove left fuel pressure and temperature sensor (B42/2).	Install new left fuel pressure and temperature sensor (B42/2). Collect exuded fuel using a suitable absorbent rag. Pressure transducer to fuel distributor	*BA07.52-P-1002-01J
		Box wrench attachment, 27_mm	Fig 3
9	Install in the reverse order.
	Check
10	Check fuel high-pressure circuit for leak tightness.
			AD00.00-P-2000-06ME
			AR07.03-P-1010-04MM
	Risk of burn injuries  , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning  caused by skin contact with solid components of the exhaust.	Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.	AS49.00-Z-0001-01A
	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	Perform engine test run. While doing so, check engine for proper operation and leak tightness.

Fig 3: Identifying Box Wrench Attachment, 27_MM (000 589 10 99 30)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Pressure Hose (119 589 04 63 00)

Courtesy of MERCEDES-BENZ USA