One of the mounts for the driver's seat has come loose - I think. The seat makes a loud clacking sound whenever I move, or each time I change gear. Any advice?

RexUK, November 2008

Hi bud.
My daughters drivers seat has the same problem and failed its mot.
The floor has cracked on the dront left mount and the seat frame has also cracked on the right front tube, giving the affect of a rocking horse.
I intend replacing the seat frame and either putting a repair plate in the floor between the threaded plate and the floor pan or getting it welded.

Pete., June 2012

Check the bolts into floor are tight and bolts going into seat frame you will probably find the seat has torn out of the floor which is a common fault in which case the seat and carpet will need to be removed and the floor welded to repair the torn floor area

Peugeot master technician, November 2008