Problem Description and Possible Solution
A coolant leak may develop at the thermostat housing, under the intake manifold. Our technicians tell us that revised parts are available to correct this concern.
Average mileage: 99,968 (45,300–170,000)
Engines affected: 3.2L V6, 3.6L V6, 4.2L V8
19 people reported this problem
Thermostat went out (indicated by the "air coolant overheating" light going on) also, the air cooling fan never turned off even after I turned off the engine - had to remove the timing belt and the front end of the engine, replace the thermostat (so the VW dealership said) and it cost me $1,800!!! Didn't know where else to go, had to get done.