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  1. #1
    Reverse Gear

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    A3 8P 1.9 TDi Name That Part

    Can anyone tell me the name of the part in the picture. Its located at the top of the engine and was making a whistling noise from the rubber gasket,seal underneath. The german based on a google translation warns about it being spring loaded.

    Could it be the cause of the Engine management light coming long during a recent trip and a noticeable drop in power (like extra weight was added to the back all of a sudden) until the engine is switched off and restarted after which the power returns and the light is gone, the vagcom reports an "000665 Boost Pressure Regulation p0299 - 000 - Control Range not reached mil on" error

    Is this part connected to that error message and would replacing the part in the picture solve my problem?
    Finally is it an easy part to source and actually replace if it is the likely cause?

    AudiA3CarPart.jpg



    Complete VagCom Error
    000665 - Boost Pressure Regulation
    P0299 - 000 - Control Range Not Reached - MIL ON
    Freeze Frame:
    Fault Status: 11110000
    Fault Priority: 1
    Fault Frequency: 2
    Mileage: 157732 km
    Time Indication: 0
    Date: 2013.04.22
    Time: 17:20:37

    Freeze Frame:
    RPM: 2037 /min
    Speed: 113.0 km/h
    Load: 58.0 %
    Voltage: 14.36 V
    Bin. Bits: 00000000
    Absolute Pres.: 1836.0 mbar
    Absolute Pres.: 1377.0 mbar

    Readiness: 0 0 0 0 0

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  3. #2
    3rd Gear

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    Looks like a wastegate actuator from what I can see.

  4. #3
    Reverse Gear

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    if it is that. Are they easy to source and fit and does it sound like it could be the cause for the vagcom error reported

  5. #4
    3rd Gear

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    Is the leak from the actuator itself as it will be vacume operated the length of the actuator linkage is important if it is threaded it should be set to the same length as the original it is not a big job to do either and it does control your boost and very probably explain the code

  6. #5
    Reverse Gear

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    It sounded like it was coming from the undeside of the actuator near a rubber seal.
    What would be the best way to test this out without causing more damage?

  7. #6
    3rd Gear

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    It could be the vacume pipe is split causing a leak and not a strong enough vacume to pull the actuator I would listein for hissing at different engine rpm and visually inspect for leaks.

  8. #7
    Reverse Gear

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    Any ideas what side of the actuator the vacuum pipe is attached to (as you look at the engine) ?

  9. #8
    3rd Gear

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    Looks like its the rubber on the left

  10. #9
    Reverse Gear

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    And is the waste gate also known as a Charger Pressure Control

 

 

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