Hello everyone, I was wondering if anyone could help me out with a issue I am having on my rs4, 

there is knocking/ rattle coming from passenger rear side, I have had it checked out with a few reliable garages and they cannot seem to figure what the issue is they all can hear the knock when going over bumps or small dips/potholes in the road, mechanically few garages have said everything is in order. Anyone had a similar situation that could advise me 

Welcome Taeib, 

I would want to eliminate the possibility of a fractured spring. These often break so close to the ends, that the actual fracture is hidden in the spring seating.

Regards,

Gareth.