2012 BMW 128I Engine Problems

The contact owns a 2012 BMW 128i. The contact stated after completing an oil change at the dealer and starting the vehicle, the RPM started fluctuating. The contact stated that after coming to a complete stop at a traffic light, the RPM fluctuated rapidly and the vehicle decelerated while driving. The dealer was notified of the failure and advised the contact to take the vehicle back to the dealer for a diagnostic test. The contact was able to drive to the dealer at a slower speed. The dealer diagnosed that the VANOS (Variable Nockenwell Steuerung) system needed to be replaced. The dealer informed the contact that the failure was a manufacturing defect; however, she would be responsible for the cost of the repair. The manufacturer was notified of the failure and informed the contact that they could not assist since an unknown recall was converted to an extended warranty repair...