About a month ago I purchased an Audi A4 Saloon 2007. It has very recently had work done on the turbo and also had work on the clutch done, but I don't know whether any of that would be causing this problem. Whenever I drive over small bumps or even just uneven parts of a road (doesn't happen on speed bumps though strangely) I get a metal rattling sound coming from the rear passenger side of the vehicle. It only happens when the rear wheel actually goes over the bump, not when the front wheels make contact. It is very annoying because it sounds even louder when the windows are open which makes me believe it's not an interior problem. It has gotten to the point where I feel I have to avoid drain covers in the road to avoid this happening! Has anyone ever experienced a similar problem? Any advice is welcome as I'm losing my mind trying to figure it out! Please keep it as less technical as possible because I'm not the most mechanically gifted person in the world!