Hi, My 2009 XK has had what I think is a problem since buying it last April, ie the reverse sensors (when reverse gear selected) seem to bleep more than they should. The ones on my previous XF certainly didn't behave like these do. They certainly don't like rain or frost. The dealer wants £100 to diagnose a fault (that would be repayable) if it was down to a part covered by the extended warranty. Anyone else had problems with Jaguar sensors please? Graham.