I have of late been hearing various noises in my v36 coupe which seem to be related to the shocks. When I go over big bumps (as are common on Sydney roads) I hear a rattle. I now also have what sounds like a worn out mattress sound that is annoyingly common, and occurs over nearly every little flex of the suspension. I left the car with my mechanic, who despite looking quite carefully, was unable to locate any obvious source of the problem.
I have an adjustable coilover sports suspension set, that my mechanic says has no branding on it whatsoever (and thus likely a very cheap make - it is what the car came with).
Wasn't expecting this issue on a car with 68000kms (legitimate)...is my only option to replace the whole lot (shocks/springs etc)?
Is this a common v36 issue?