Car Problem Reports

Porsche 911 Persistent Coolant Loss Due to Small Leak at Coolant Reservoir

Porsche 911 Problem
16 Reports
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Model Years Affected: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

Engine Affected: 3.4L 6 Cylinder

Average Mileage: 92,250 mi (75,000 mi - 120,000 mi)


A small leak in the coolant reservoir can cause persistent coolant loss. To ensure engine longevity, coolant loss and overheating issues need to be resolved. Out technicians tell us the proper coolant fill procedure must be followed when refiling the cooling system.

  • Visitor, , 90,000 mi

    I have had a very large leak, they replaced the plastic tank and it is still leaking, even when it is just sitting in the garage.

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