Car Problem Reports

Porsche Cayenne Coolant Leak from Thermostat Housing

Porsche Cayenne Problem
10 Reports
Me Too

Model Years Affected: 2003, 2004, 2005, 2006, 2008

Average Mileage: 56,275 mi (40,000 mi - 85,000 mi)


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.

  •  Rookie

    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.

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  • Visitor, , 50,100 mi

    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.

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  • Profile_thumbnail

    We see this problem quite often in our shop. The problem is, that the transmission has to be removed to get access to the thermostat.
    Make sure you use the original coolant.

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