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Strange Noises? Help!
In message <UPMAIL06.firstname.lastname@example.org> "PAT MARTIN" writes:
> Between 61 and 65mph I begin to hear a rhythmic hum emenating from the front
> of the car. It is quite loud. In fact, if I had a non-Audi person in the
> car and I was trying to impress them with my expensive German metal, they
> definately would not be impressed. The only thing I can think of is the
> tires. At about 67 mph the noise begins to go away, until at about 72
> mph the noise is gone entirely.
Some form of frequency-dependent vibration that _doesn't_ show up as tyre
This is a wild guess - are the brake caliper carrier retaining bolts worn?
These are basically secured rods on which the carrier floats to accomodate
caliper tolerances when braking - there are two on each caliper. Usually wear
shows up as a mild "clank" when hitting a pothole.
Committee Member, UK Audi [ur-]quattro Owners Club