Coolant Loss and Engine Overheating on Porsche 911

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.

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Average mileage: 92,250 (75,000–120,000)
Engine affected: 3.4L 6 Cylinder
12 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
16 people reported this problem
1 person shared problem details
2001 Porsche 91190,000
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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