dash clock problem

[alanelf]

Hi i have recently started having problems with my clocks in my car ie the revs, speedo, and temp stop working and the milage and trip miles turn in to dashes car doesnt cut out and also starts fine just seems to be the dash playing up its only like it for couple of minutes then seems fine for a few days or weeks even.the fuel needle doesnt drop though.the car is a tdci 03 reg.Anyone know whats the deal is with the watchdog program i heard on hear somewhere £99 replacement?would i still be covered to have a new clock set if this is the problem even though its an 03 reg.thanks in advance.

forgot to mention the engine management light comes on whilst gauges are playing up then goes back out when they are working again.have done 20 miles since played up last and no management light has come back on and everything seems fine.