Porsche has issued a recall for turbocharged models of the 2012 Cayenne crossover and the 2011-2012 Panamera sedan.
According to a bulletin from the National Highway Traffic Safety Administration, a turbine wheel on those vehicles' turbochargers may have been improperly cast. As a result, it could fracture, which would diminish performance.
In certain cases, the fractured turbine wheel could also lead to a fracturing of the turbine shaft. That, in turn, could pull oil into the exhaust system, where it would have the potential to smoke and catch fire.
While that sounds pretty bad, there is some good news: at the moment, the recall affects just 270 vehicles.
Porsche says that it will begin notifying owners of the problem this month. After receiving the recall notice, owners will be able to take their vehicles to a Porsche dealer, who will replace the turbine wheel free of charge.
If you have questions in the meantime, we encourage you to contact Porsche at 800-767-7243 and ask about recall #AC04. Alternately, you can ring NHTSA at 888-327-4236 and inquire about campaign #12V329000.