Coolant Loss and Engine Overheating on Porsche Boxster

Problem Description and Possible Solution

Persistent coolant loss can be caused by a small leak at the coolant reservoir. Our technicians tell us the leak may not be visible due to the trunk carpet hiding the leak.

Problem Data
RepairPal Verified
Average mileage: 62,276 (17,000–108,000)
14 model years affected: 1997, 1998, 1999, 2000, more2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
22 people reported this problem
Viewing 1 - 5 of 5 problem details
LEAK IN RIGHT REAR TRUNK FROM RESERVOIR. TEMP SENSOR GOING OFF REFILL THEN WEEK LATER SAME ISSUE.
Have to add coolant every month.
I have this problem , but car runs great. Once shut off , coolant leaks under car and inside the trunk , then runs great the rest of the week or two.

Please help , single lady here.
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Constancce
Was overheating and loosing coolant only after shutting car off.Problem was engine compartment cooling fan,located in passenger side rear air duct.Can be accessed by lowering top half way and removing engine covers on rear deck.Simple one bolt, one wire removal and replacement.Found one on Ebay,problem solved.
anti freeze loss. had a 1998 boxter and had the same problem. think it to be the radiator reserve tank. if engine was consuming water, it would mean a head gasket issue, but car would not be ideling smoothly.