Robin, Just so that there is no confustion I want to mention that Mercedes with AutoTemp did not come from the manufacturer with aluminum-bodied servos. 1976 through 1981 Mercedes AutoTemp servos are plastic just like those used by Imperial from 1971 through 1973. Any Mercedes you find with an aluminum servo in a junkyard will have had its servo replaced by the owner. This is an unlikely discovery, as the aluminum servo is expensive, and easily transferred from car to car. I know that if my '73 ever leaves me, the aluminum AutoTemp servo stays right here! The Mercedes connection with the aluminum servo is that it was the Mercedes enthusiasts who started the servo reporduction project. They were just as tired as we were of servos bursting at the seams! Dave Duricy http://www.duricy.com/~imperialist 1973 Imperial LeBaron 1968 Imperial Crown convertible Robin Giesbrecht wrote: > Any details on putting in a manual control? It is regularly 90-100 F > here during the summer and AC is real nice.I know these plastic bodies > are the weak point and it will fail again. Got my eyes open at the auto > wreckers for a MB with an aluminum servo. > > Robin Giesbrecht