Further update, after it was dismantled, it was found that it had indeed stretched, but a by a minute amount, about 0.2mm so on instruction from uk alfa tech was assembled and after further checks, it was decided that the exhaust camshaft varieator solenoid was the original reason for the warning light and was replaced. The complexities of which even the service manager said were above his head. He assured me that any further issues would be dealt with immediately and that it would be covered by the warranty. I am afraid however that I have lost patience with the unreliability of the car and have sold it whilst there was still some value in it. During my 39 months/ 40k miles with the car, faults have been; Replacement speakers, central consol, sump oil temperature sender, alarm faults (not really resolved, but I and my neighbours lived with it) replacement radio, replacement door trim,(damaged by technician) replacement rear shelf clips and rear lock cover, timing chain, front mudguard lining,(damaged by technician)Replacement undershield fittings,(mislaid by technician)Petrol tank straps tightened, replacement steering rack, replacement front lower suspension arms both side, (damaged by technician when changing the rack) and now replacement exhaust camshaft varieator solenoid. So whilst I still have the old GTV, my daily driver will again be japanese, both the last two have proved to be good looking, fun to drive and reliable. I am afraid that the Brera has scored highly on only the looks. Incidentally the dealer did offer the brera to a franchised dealer within the trade, but they declined on the grounds that the mileage was too high at 40k, which I think speaks volumnes.