Remove/Install Boost Pressure Sensor Downstream Of Throttle Valve - AR09.41-P-0004MNA

Engine 176 in model 463 

up to model year 2019 

Engine 177 in model 205 

Shown on left side on engine 176 

Fig 1: Boost Pressure Sensor Downstream Of Throttle Valve Component Location - Model 205 With Engine 177 (Shown On Left Side On Engine 176)

Courtesy of MERCEDES-BENZ USA

	Risk of injury.  Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1.1	Remove left charge air cooler.	When removing left-hand boost pressure sensor downstream of throttle valve (2).
		Engine 176 in model 463 up to model year 2019	AR09.41-P-6827MNF
		Engine 177.### ## up to 081179 in model 205	AR09.41-P-6827MNA
		Engine 177.### ## as of 081179 in model 205	AR09.41-P-6827MNH
1.2	Remove right charge air cooler.	When removing right-hand boost pressure sensor downstream of throttle valve (2). Engine 176 in model 463 up to model year 2019	AR09.41-P-6828MNF
		Engine 177.### ## up to 081179 in model 205	AR09.41-P-6828MNA
		Engine 177.### ## as of 081179 in model 205	AR09.41-P-6828MNH
2	Release and disconnect electrical connector of left boost pressure sensor downstream of throttle valve (2).	Engine 176 in model 463 up to model year 2019 When removing left-hand boost pressure sensor downstream of throttle valve (2).
3	Remove screws (1).	Bolt, boost pressure sensor upstream/downstream of throttle valve	*BA09.41-P-1005-01X
4	Remove left and/or right boost pressure sensor downstream of throttle valve (2).
5	Seal openings with suitable stop plug.	Record plug	Fig 2
	Check
6	Check O-ring of left and/or right boost pressure sensor downstream of throttle valve (2) for damage.	If there are problems, ↓ Replace left and/or right boost pressure sensor downstream of throttle valve (2).
7	Install in the reverse order.
8	Connect vehicle diagnosis system, read out fault memory and clear if necessary.
		Engine 176 in model 463 up to model year 2019	AD00.00-P-2000-04A
		Engine 177 in model 205	AD00.00-P-2000-04B
	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
9	Perform engine test run and check engine for proper operation and leak tightness.

Fig 2: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA