One problem related to gas recirculation valve (egr valve) has been reported for the 2005 Porsche 911 Turbo. The most recently reported issues are listed below.
Epoxy holding pipe in water pump housing failed causing pipe to separate, coolant to dump on rear wheels and brakes, and loss of traction/degraded rear braking.
| Engine Cooling System problems | |
| Gas Recirculation Valve (egr Valve) problems |