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A3 2.0 tdi losing power after hitting higher speeds

crazyjay91 Jun 11, 2014

  1. crazyjay91

    crazyjay91 If in Doubt, FLAT OUT!

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    Hi all, I picked up my A3 2.0 tdi last night (just sold my A4 B6 2.5 tdi) but bit worried now. Driving down the motorway, as I hit about 80mph it started to lose power and went into like limp mode. Once I stopped and turned the engine off and back on it worked fine again. Does anybody know what the possible causes could be? I'm gonna get vagcom plugged into it tonight but if anyone may know the possible cause that'd be amazing!
     
  2. LEE69

    LEE69 07 170 DSG Team Dolphin Grey Audi A3

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    Turbo vanes need cleaning?
     
  3. foxymk1

    foxymk1 Active Member

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  4. SmithyAG

    SmithyAG Active Member

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    As above, overboost fault code should be logged.

    Most likely caused by sticking vanes in the turbo. Possible to clean it out properly by removing and stripping the turbo down, or taking the opportunity to replace it.
     
  5. crazyjay91

    crazyjay91 If in Doubt, FLAT OUT!

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    Thanks for all the replies chaps. I'll get it connected into VCDS tonight - sounds like it's time for a good strip down then!
     
  6. SmithyAG

    SmithyAG Active Member

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    crazyjay91 likes this.
  7. LEE69

    LEE69 07 170 DSG Team Dolphin Grey Audi A3

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    Have heard of people using Mr muscle with good results, seriously.
     
    crazyjay91 likes this.
  8. SmithyAG

    SmithyAG Active Member

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    Mr Muscle does dissolve carbon deposits. Check some of my older posts for guides on how to do it.

    It works for some people and not for others. A full strip and clean is always better.
     
  9. crazyjay91

    crazyjay91 If in Doubt, FLAT OUT!

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