Tripod. Audi owners need to know this is a very major problem with many 5000 Series Audi's.. I know a fellow who bought two new Audis with this problem.. He sold them both after being unable to solve this problem. Audi did modification by adding a fan afterrun system to run fan after hot engine was shut down. However, this seems not to have solved the problem.. My Audis do not have this problem, fortunately..
In my opinion this problem is likely caused by a malfunctioning temperature sensor.. I've had lots of problems with the "Electronic Thermoswitch" located on water jacket from head, lower one, near front of engine. The reason I mention this is because my Bentley Manual does not list a "Reference Sensor" and I'm wondering if this could be it... Or, where is that "Reference Sensor" Located? Or is it the Control Pressure Regulator on the Fuel Injection Distributor where the injector lines come from?
This is very important to know and I sincerely hope you have put your finger on the real problem which it appears you have. Thanks.
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