havent moved my car (cab1.8t quattro) for over a week with all the bad weather any way the other day i started it up fired first time not bad i thought to my self as its been -18 here then i saw the warning light on (yellow one in the shape of an engine ) any one got a clue on why this has come on and will it go off as it wasnt on before i parked car up ..i myself think somethink as got ice it in some where and needs a god run will this cure it ??????????????