Four problems related to engine cooling system have been reported for the 2004 Porsche Cayenne. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Porsche Cayenne based on all problems reported for the 2004 Cayenne.
Leaking plastic cooling pipes, vehicle in motion, city street boca rayon FL.
Coolant pipe start to fail for the model year 2004-2006. The material for coolant pipe was made of plastic and it resulted in a disintegration of pipe overtime due to temperature changes. Porsche technicians identified this issue and Porsche engineers also identified this issue. They came up with a replacement part which is made of aluminum to mitigate damages to the engine due to sudden failure of coolant pipe. If the pipe busted, it will cause the vehicle to fail during operation and may result in a hazardous incident causing environmental issue and possibly injury to the driver and its passenger. It is highly recommend that Porsche to recall this product and replace it for all defect to prevent further incident. Additionally, this is an engineering flaw so the cost to repair, replace or to upgrade cannot be the owner responsibility.
Water pump failure. Original part has plastic impeller and high failure rate dealer wii replace with upgraded part but no reembursement.
Original engine cooling tubes defective, plastic composition. Can fail without indication causing overheated engine at any time. Replacement parts are upgraded to metal. No recall and maker will not reemburse damage or repair.