Most old Audis have the CC working intermittenly, our 98 A8 also has the problem, we haven’t had time to check into it since we don’t use it so often. We accumulated all the links to websites that we stumbled into for our references. Vacuum diagram Resoldering caps on controller Resoldering caps on controller2 Resoldering …
When the car is over 100k miles, running hot or low oil for a while, the oil cooler plastic coolant pipe would break and leaks slowly under pressure (when the car turned of after reaching operating temperature). The leaks appear to be from the water pump but it’s not, it’s dripping from behind the alternator …
The coolant leaks caused us to believe it was from the water pump, our bad, and we replaced it. ****The bumper should come out for the radiator to move out to have room to access the front of the engine. It took me less than 1 hour to remove the bumper and the radiator support. …
