Jan 162015
 

I have terrible vibration durring acceleration in my A4 B6 1.9tdi AWX 5M. The whole car vibrates, especially the gear stick, front seats and the pedals when I take over and press the “pedal to the metal”. No matter on which gear, but on 4th the vibrations are greater.
The wheels are balanced TEN times, in ten different tireshops.
All four brake discs replaced.
Both axles completed (including inner and outer cv joint) replaced.
DMF and the clutch replaced.
The car was in a special local diesel workshop for inspection of fuel equipment and turbocharger – as per their opinion – all in perfect condition.
Engine mounts were visualy checked – no noticeable defects.
Any ideas ??
Thanks in advance.

  One Response to “Audi A4 8E B6 1.9TDi 5M”

  1. Sounds like a good one,Happy to help you figure this out.
    I am going to assume(correct me if I’m wrong)that it does not vibrate when in park and revving the engine.

    Since this seems to happen only on acceleration, and not setting still, the first thing I would do would be to put it up on four jack stands securely and test it(pretend your driving it). No vibration, then you know it is in the tires and I suspect a busted belt in the tire/s.

    You can balance a wheel and tire assembly all day long and the busted belt will cause some serious vibration.

    Also, if you have not done so, rotate the front tires to the back and the back tot he front and see if the vibration moves to more in steering wheel instead of the seat. Also an indication of a busted belt in the tire, just helps to narrow down which one/s are causing the problem.

    If it still Vibrates with it being up in the air, I would look closer at the Drive line Mounts(engine and transmission mounts)

    Extra thought: when setting still, apply park brake, put it in gear and put it under a load(give it gas) and see if any signs of the vibration show up. If so, it is engine related, probably a coil failing or tune up needed.

    Keep us posted in the comments below.

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