my 99 S3 has been well driven and serviced at the right time,it has now developed a new noise (best way of discribing it ) from the underside of the car.
1. I thought something was hanging down ie. the undertray from the engine, Not that.
2. The heat sheild on the cat , no I repaired that earlier this year, still nice and fixed.
The problem is not there all of the time, without having a ramp to properley investigate, does anyone have any thoughts