An internal investigation revealed the fires were caused by loosened piston-rod screw connections, which caused damage to the crankcase and allowed oil to leak. Porsche says the replacement engines will have “optimised fasteners” to remove the risk of additional fires.
Though Porsche confirmed no injuries had resulted from either vehicle fire in Europe, the car maker encouraged owners to stop driving their cars until a solution was found and the resulting recall was completed.
Porsche Cars Australia public relations director Paul Ellis said there was no timeline for when the recall would be conducted at this stage.
“The factory is evaluating the fix, so they’ll be doing extensive testing to make sure that the fix is 110 per cent,” Ellis said.
“Once they do that, then they’ll establish a process for how the engines are swapped over and once that process is established then we’ll have a timeline.”
He said it remained unclear if the engine replacements could be completed by local dealers or if the five Australian GT3s would need to be shipped back to Germany.
“I don’t know yet. Until the process is identified we won’t know,” Ellis said.
The Porsche 911 GT3 debuted 12 months ago before the first examples landed in Australia at the end of 2013. The race-bred model is powered by a 350kW/440Nm 3.8-litre six-cylinder engine, claims 0-100km/h acceleration of 3.5 seconds and a top speed of 315km/h.