redsquirrel

Does anyone else have a knock on the front wheels when reversing on full lock? I have owned my C1 5-Dr Rhythm from new (Sept 05) and I think its a great car and very easy to drive. However I have this knock accompanied by a rumbling noise coming from the front wheels when reversing especially when backing out of the drive first thing. It was serviced last week and I mentioned this to the dealer as I did last year but they cannot find anything wrong with it. Anyone else heard the same thing on their's?