Just noticed on my Citigo, 1 year old in August, there is rust around the upper door lock mechanism fixing bolt on the N/S. There are two black headed domed bolts on each lock which are viewed when the door is open. It looks as if there is a washer between the bolt and the painted door surface which is possibly to prevent damaging the paintwork. Whereas the other bolts seem to be of a non rusting material, the one gives the appearance of a rusting plain steel washer.

I'll get it sorted under warranty, but wondered if anybody else had this problem?

Ours is around 9 months old and no rust here on any of the lock bolts. I didn't notice any washers behind the black domed headed bolts either, maybe changed it for my model run?