HI GaryM... this is my first reply as am new boy! My parking sensors stopped working after Ford dealer repaired my non-working rear window washer and I collected my car back from them! Reason was (they said), washer pump is located at front nearside over the parking sensor module and leak from this corroded the module... was 'just coincidence' it happened whilst they had Galaxy in for washer repair. Anyway, after several attempts they managed to restore beepers to original working and sounds. As I said, module is somewhere under washer bottle in front nearside wing. Rear beepers are in rear corners of the body, front beeper under passenger seat (where, incidently, is also located the inertia fuel cut-off switch, not under driver's seat although it would be on left-hand drives!) The distance sensor beepers drove me mad when I first had the car, now I wouldn't be without them as they make parking so easy (and lazy!) Cheers. PeterR