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: 69,683 (40,000–115,000)
14 people reported this problem
Last oil change i was notified that my thermostat housing was leaking. Sounds like this is another common weak spot that Porsche didn't take responsibility for. Like the coolant tubes, like the carrier bearing for the driveshaft, like the rear hatch liftgate struts... and Im probably leaving out a half dozen more.
Just bought 08 Cayenne S. Dealer identified problem and I'm trying to research before I give them more money. They noted a coolant leak but failed to inform me that intake socket and gel have been modified to address this issue, sounds like bad initial design and procedure but they want owners to pay for update.
going up a hill on an freeway, water and coolant blew and drained...immediate alarms went off, within 10 seconds we were on the side of the road waiting for RoadSide Assistance. Car is in the shop right now. Porsche said they'd cover it under factory warranty.