Following your previous advice I have purchased a petrol 4.2 S type May 2004, 74,000 miles in very good condition and a pleasure to own and drive.

However, after 2 weeks or so a red light came on with various messages; NO DSC / Park brake, engine management ETC. Car then slows to 5 mph I turned off engine and the car was ok after a few minutes. This occurs spasmodically, on consecutive days or after a further week or so.

I took the car into local Jaguar dealership (H.A. Fox) who could not find the fault when they had it (about 10 days). Have charged me £300 for investigating but they and Jaguar say "not covered by the Jaguar warranty as no fault found" Are they right? Do I claim against the other Jaguar dealership (Lancaster in Sidcup) where I purchased the car?

Outside temperature gauge can show 45C when its nearer 16C and radio/CD goes off every few seconds and then on again when Sat Nav is displayed. Have pointed this out to H.A. Fox, but they say they haven't noticed these two points.