Hi, My C4 has started to make an intermittent grinding scratching noise... It doesn't seem to be related to changing gear, braking or accelerating. Yesterday it was makig the noise while I had the engine on, idling in neutral witht he parking brake on. The noise only lasts a few seconds each time and then goes away. If anyone has ever heard a computer hard drive on it's last legs, it sounds almost identical to that excpet louder. So something rotary...a pump maybe? Any ideas before I book it in? Thanks very much.
