Four problems related to coolant leaking 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.
1) coolant pipe problems,Porsche never fix them ,had pay to get them fix. (2) filter flange fuel pump leakage,problems Porsche said unfortunately, at this time parts are not available. Had it repair my owen money, did not want to chance a risk of fire. (3) transmission module problems did not shift right,had to buy new one. To many problems.
Engine coolant hoses are leaking antifreeze. Everytime I pour antifreeze into the car it comes out, im afraid it might damage something else, like the engine etc. They have plastic hoses on them.
At 38,785 miles coolant pipes leaking and replaced. After repair "internal engine noise" and noise is now louder and engine use more oil. Took to local Porsche dealer vehicle still at Porsche dealer because dealer states" engine needs replaced" because if overheated due to coolant pipe failure pistons walls damaged. Dealer checking with Porsche to find out if they will pay something or all of cost to replace engine. Cayenne at Porsche dealer for over 60 days with no outcome as to what Porsche will pay. Could cost up to $20,000 if invoiced to me.
The contact owns a 2004 Porsche Cayenne s. The contact stated that while driving approximately 50 mph, an overheating indicator light began to illuminate on the instrument panel. The vehicle was taken directly to an independent repair shop where engine coolant was added to the vehicle. While adding the coolant, the technicians noticed that the coolant was leaking out through its plastic tubing. The vehicle was then towed to an authorized dealer where the plastic tubing for the engine coolant was being replaced with aluminum tubing. The manufacturer was made aware of the failure, but offered no assistance. The failure mileage was 54,500.