Hi, I'm a brand new member with absolutely no mechanical knowledge so I hope another member can advise me. I bought my car 6 weeks ago from a Jaguar main dealer. - A 2008 XType, 2.2 SE Diesel Automatic. I drove my car locally and it was fine. Last Friday I drove from Manchester to London using motorways all the way. As I left the M25 a dashboard warning came on. - A stable amber light with the words 'Gearbox Fault' and a flashing amber coil icon. I immediately found a safe place to park and switched off. Two days later my breakdown service sent a mechanic to assess the car. This mechanic did a computer diagnostic check and told me 2 faults were reported. - There had been a problem with the turbo and then a knock on problem with the car accessing neutral. - The fault did not reoccur when the ignition was switched on again nor during a test drive. In effect the car was operating normally again. The mechanic concluded that if a fault still existed it was intermittent. Other than that, from experience, he could confirm my gearbox was not faulty and that the fault was turbo related. - He said turbo problems caused the 'Gearbox Fault' warning to display even though the gearbox was not faulty and the car was safe to drive. I later drove the car back to Manchester without mishap but I am still concerned that I may have an underlying problem. Has anyone else had a similar experience? Did the mechanic tell me the truth? My car is still under warranty and will be going back to the seller for another check but I would like to be able to ensure they do not 'blind me with science' to evade responsibility for an expensive repair. Thanks guys.