NHTSA Complaint #11418702 — 2013 BMW X3

Vehicle indicated a drivetrain malfunction. It was determined by the dealer that the system that failed was TIMING VALVETRONIC MOTOR. The vehicle stalled as I was making a left hand turn off of a busy highway, putting myself and oncoming traffic at serious risk of collision. Oncoming vehicles were able to slow until I was able to maneuver the vehicle out of the lane of oncoming traffic. The dealer confirmed that they "found the vehicle stalling and not running correctly. Performed vehicle test. Found faults for valvetronic motor. Set multiple additional faults for mixture and air mass. Valvetronic is failing and should be replaced." The vehicle component was inspected by the dealer who sold me the car. There were no warning lights nor other indicators of component failure prior to the vehicle stalling on the highway. This is the second time this vehicle has stalled in dangerous situations. The first time was a drivetrain malfunction/engine failure due to TIMING CHAIN AND TIMING TENSIONER malfunction. Most likely the VALVETRONIC SYSTEM failure is directly related to the TIMING CHAIN TENSIONER malfunction. Both systems failed within a very short period of time, and within fewer than 4,000 miles of each other.