The contact owns a 2007 BMW Z4. The contact stated while driving 70 mph, there was an abnormal knocking sound coming from the engine. The contact pulled the vehicle over to the side of the road and inspected under the hood and underneath the vehicle. The contact found no issues. There was no warning light illuminated. The vehicle was towed back to the residence. The vehicle was next towed to the local dealer BMW dealer to be diagnosed. The mechanic was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 81,000.

- Millstone, NJ, USA

The contact owns a 2007 BMW Z4M. While driving 10 mph, the contact stated that he hit a bump in the road when he heard a loud snap coming from the front passenger side of the vehicle. The dealer advised him that the passenger side engine bolts had fractured and that the engine was not attached to the vehicle. The manufacturer was was aware of the failure. The vehicle was awaiting repairs. The current and failure mileages were 34,000.

- Bellevue, WA, USA

MINIcooper made by BMW. Trouble light appears. Engine switches to low power. Can happen at freeway speeds without notice. Less than 100 miles on car at first incident. At first dealer service, dealer suggested in might be brand of gasoline. Multiple incidents since purchase without notice and with different brand name gasoline.

- Camarillo, CA, USA