Three problems related to coolant leaking have been reported for the 2011 Porsche Cayenne. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Porsche Cayenne based on all problems reported for the 2011 Cayenne.
Coolant leaks while vehicle is stationary. Leak is due to faulty plastic that was redesigned to metal tubing due to common reported issues. Plastic tubing connected to coolant system will become brittle and cracked, causing overheating and lost of coolant. This issue is commonly reported about the 2011 cayanne with a dealership cost of up to $4500.
The coolant pipe design is flawed. The barb is glued and pressed in the aluminum body. Over time the glue loses its properties and the barb comes out thus causing massive coolant leak and the engine can overheat. The part was redisgned around 2015 where the barb is now threaded, but the original part is a safey hazard for the older models with potential huge repair costs.
The coolant pipe cracks and cause leak.