Four problems related to engine and engine cooling have been reported for the 2003 Porsche 911 Turbo. The most recently reported issues are listed below.
I was driving on the putnam park road course track on 9/12/15, and one of my coolant fittings broke loose from the defective Porsche adhesive. It spewed coolant all over the track, creating a very dangerous situation causing other drivers to lose control. I had a Porsche dealer remedy the situation by pinning the fittings and applying new adhesive.
Repair to the engine coolant hard pipes was required to prophylactically prevent failure of the factory epoxy seal. Welding the pipes was required while the engine was out of the vehicle.
Coolant pipe failure at "coolant console" on top of the engine causing all coolant to immediately spill on top the engine, spraying the rear tires causing rear tires to lose traction. The coolant pipe is press fit with what appears to be an adhesive which failed leaving the exit pipe made of steel separated from an aluminum " console or block". The coolant loss was immediate causing total coolant loss. Very disconcerting at 70mph having coolant spray all over the rear tires (particularly the drivers side rear). Causing the rear of the car to slide sideways on a gentle right hand bend on an interstate.
The coolant line connectors that come out of the engine / block are dislodging from the engine blocks and blowing out all of the coolant in a matter of seconds. Porsche used some sort of adhesive to hold the connectors in the block instead of welding them in; as the cars age and go through lots of heat cycles, the adhesive is wearing out and the connectors are blowing out of the engine block causing a massive coolant dump which can be dangerous if travelling at freeway speeds.