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

2021 Mercedes Benz GT C AMG 2D ConvertibleSECTION Remove/Install Boost Pressure Sensor Downstream Of Throttle Valve - AR09.41-P-0004MNB

Engine 178 in model 190 

Shown on right boost pressure sensor (3) downstream of throttle valve 

Fig 1: Boost Pressure Sensor Downstream Of Throttle Valve Components Location - Engine 178 In Model 190 (Right Side Shown)
G16681494Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1.1 Remove left charge-air distributor (1). When removing left boost pressure sensor (3) downstream of throttle valve. AR09.41-P-8684MNB 
1.2 Remove right charge-air distributor (1). When removing right boost pressure sensor (3) downstream of throttle valve. AR09.41-P-8685MNB 
2 Remove screw/bolts (2). TORQUE SPECIFICATION Bolt, boost pressure sensor upstream/downstream of throttle valve *BA09.41-P-1005-01X 
3 Remove left boost pressure sensor (3) downstream of throttle valve and/or right boost pressure sensor (3) downstream of throttle valve upwards.    
INSPECT Check     
4 Check O-ring of left boost pressure sensor (3) downstream of throttle valve and/or of right boost pressure sensor (3) downstream of throttle valve for damage. If damage is present,

Replace left boost pressure sensor (3) downstream of throttle valve and/or right boost pressure sensor (3) downstream of throttle valve.
 
5 Install in the reverse order.    
6 Connect vehicle diagnosis system and read out fault memory.    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
WARNING 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
7 Perform Engine test run and check Engine for proper operation and leak tightness.    
CHARGE AIR LINE/CHARGE AIR COOLING

Number Designation Engine 178
BA09.41-P-1005-01X Bolt, boost pressure sensor upstream/downstream of throttle valve Nm 6
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.