The turbocharger turbine wheel may fracture due to a casting defect. If a fracture occurs, vehicle performance will be decreased and the turbine shaft may also fracture. If the shaft fractures, oil can be drawn into the exhaust system, resulting in excessive smoke and the risk of a fire. Dealers will replace the turbine wheels to correct this concern. The Porsche recall number is AC04.
Recalls are issued for cars with safety-related defects or problems