Does anyone know the part number for the 42 degree temperature sensor for the 1981 380 SL? The sensor mounts on the intake manifold at the rear, passenger side and sends a signal to the idle speed control. None of the online vendors list it. Is the dealer (choke) the only source (ka ching ka ching). Also, the service CD shows a 16 degree oil temp sensor also signalling the ISC. It is no where on my car. The car is a 7/81 manufacture but the engine has a few post Semptember 81 features. I am also looking for the temperature switch on the bottom of the servo for the climate control. Thanks one and all.