Last week after the car 1.9 cdti 150, had been standing for a week and abit started her up for the first time. No spanner light, and sat and defrosted for 15 mins or so, pulled out the street and drove a hundred yards and the spanner light came on arranged to go to the garage which is 20 miles away and half way there the light went off, they plugged her in an there are no fault codes stored. Car has been running fine however tonight after work defrosted the car and the same thing pull away and after 100 yards spanner light again!!! Anyone any ideas???