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A3 2.0 TDI Turbo Charger, Under Boost issues

Discussion in 'A3/S3/Sportback (8P Chassis)' started by MSS3, Apr 13, 2012.

  1. MSS3
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    MSS3 New Member

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    [Apr 13, 2012]
    Hi All,
    I'm new on this forum and have a A3 2.0 TDI 2009 year Sportback with the common rail diesel engine.
    Whilst driving at higher speeds on the motorway for over a few miles my Glow plug light starts flashing,

    I've had the cat plugged in and have been given a error code of P0299 with message of TURBO UNDER BOOST, Permanent.
    Could any one please advise what I'm up against ? Some maybe Turbo others the Actuator and a few saying it could be the Turbo boost sensor?
    Are there any good specialists in or around the Birmingham area please?

    Cheers Manny,
    #1
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  3. MSS3
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    MSS3 New Member

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    [Apr 14, 2012]
    I've been informed that the Acutuator is faulty and that I need a new Turbo!
    #2
  4. NHN
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    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    [Apr 14, 2012]
    Yes but CR was only on facelift cars, so I would be chatting to audi about some form of warranty given facelift was only late 08 onwards, I think you may have some case.
    #3
  5. audicruiser
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    audicruiser Audi Heaven

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    [Apr 14, 2012]
    I'd check all pipe work first as its quite common for boost leaks to occur at inter cooler joins etc...
    #4

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