I have a 1992 200te auto estate and have a problem for the past year. On a cold morning I start the car OK. I drive for 10 mins and if I stop at a roundabout or traffic lights the revs start to decrease. I have to put the car in Park and rev it to keep it running. When I try and pull off I have to floor it to bring the revs up enough to pull away.

Now I have to turn the car on in the morning and leave running. After 20 mins it reduces in revs and stops. The car will turn over but will not start. I leave the car for 20-30 mins and then try and it starts up, revving will mean that the car will not have the problem again for the rest of the day.

Its like its OK in the morning but when reaches a certain temperature it stalls. I do not have this problem when the weather is warm in the morning.

HELP!!!!