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3.0 Quattro Gearbox/Diff noise

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by pgull, Sep 26, 2012.

  1. pgull
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    pgull New Member

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    Hi there,
    I have a 3 litre quattro sport avant with an increasingly worrying rumble. Its a low frequency grumble when under load that isn't related to wheel speed or revs.
    It started in 5th and 6th gears but is now throughout the box but it only seems to be once the car is warm.
    It doesn't seem to affect performance but its loud enough that you lift off at about 4000 rpm so I havent been brave enough to try to drive through it!
    Its definately at the front end and not the prop bearing noise that some people have suggested.

    Any ideas???
    #1
  2. pgull
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    pgull New Member

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    Gearbox and diff oil change solved the problem, just in case anyone was wondering!
    #2
    Audi Doodah likes this.
  3. moggs
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    moggs Member

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    Thanks for the update. I'm getting a slight rumble but not too bad. Wheel bearings have been given the ok. This Was my next guess. Will get it changed soon. X x did you do it yourself.
    #3
  4. pgull
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    pgull New Member

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    No I was due a service anyway so I just had it all done at the same time. It was only about £50 extra including the oil.
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