my Audi A4 is whining when i get around 3grand when im driving. Why?
it could be 1 or 2 things, either your turbo is about to take a dump on you, or the planetaries in the transmission for 1st and 3rd gear are worn. to start with, try removing your airbox, you should have a good view of the turbine portion of your turbo. from there just look to see how the blades on the compressor side look.
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