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91d4 quality enhancement

666markyboy Mar 21, 2014

  1. 666markyboy

    666markyboy Well-Known Member

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    91d4 quality enhancement as in the title... it's on the service history... anyone know what it was ?
     
  2. Giosabcsl

    Giosabcsl Active Member Audi A4 saloon

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    I would think it would be something to do with a part or item that has had a revision part.

    Do you have a tow bar by any chance?
     

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