Help! Is their anyone who might be able to give me some insight into what might be happening with my 87 S4. Overheating when i am driving in the car or just sittting at idle I can hear the cooling fans come on for only a moment and the car starts to overheat. When i get out of the car with the hood open or closed, the fans come on as normal and the temp. falls back to normal. Does anyone know if their is a pressure sensor in the seat that might be related to cooling system. I have checked all the normal systems related ie: temp sensors, rad., hood switch, etc.