Strange clung (Pong) from rear passenger side of car. Any ideas??

[S3 Paul]

My car has done this for a while now... normaly after a quick change in the road angle or dropping of a dropped cerb onto the road.
It only does it once and is almost impossible to "make it happen" so im at a loss...
The car has koni coil overs ( 4 year old though) its nothing to do with the exhaust as i changed that. I have adjustable rea tie bars ( 2 years old )

I was thinking maybe the bush's on the tie arms that havent been changed? or is there rear drop links to check??

 

[Ian W]

Sounds like a cracked spring, would jack it up and check your coilover.

Do Koni's use helper springs? Could be one of them?

 

[S3 Paul]

The spring itself looks complete ( not fully snapped any way) as far as i can tell there are no helper springs