Remove/Install Boost Pressure Control Pressure Transducer - AR09.41-P-2004MNB

2021 Mercedes Benz GT C AMG 2D ConvertibleSECTION Remove/Install Boost Pressure Control Pressure Transducer - AR09.41-P-2004MNB

Engine 178 in model 190 

Fig 1: Boost Pressure Control Pressure Transducer Components Location - Engine 178 In Model 190
G16681501Courtesy of MERCEDES-BENZ USA
WARNING 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
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Notice  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
REMOVINGINSTALLING Remove/install     
1 Remove rear Engine compartment lining. Engine 178 in model 190.381 AR61.20-P-1105RGB
    Engine 178 in model 190 (except 190.381) AR61.20-P-1105RG
2 Remove the front-right underfloor paneling. Engine 178 in model 190.381 AR61.30-P-1001RG
3 Loosen nut (2). TORQUE SPECIFICATION Bolt, boost pressure sensor upstream/downstream of throttle valve *BA09.41-P-1005-01X 
4 Remove the nuts (4) and remove the boost pressure control pressure transducer (Y77/1). TORQUE SPECIFICATION Bolt, boost pressure sensor upstream/downstream of throttle valve *BA09.41-P-1005-01X 
5 Release and disconnect electrical connector (3).    
6 Remove the vacuum lines (1) from the boost pressure control pressure transducer (Y77/1).    
7 Install in the reverse order.    
  Concluding tasks     
8 Connect diagnostic system, read out fault memory and clear if necessary.    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
WARNING 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 danger zone. AS49.00-Z-0001-01A
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
9 Perform Engine test run. While doing so, 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.