NHTSA Complaint #11628662 — 2011 BMW X3

The contact owns a 2011 BMW X3. The contact stated while driving at an undisclosed speed, the contact discovered that an unknown substance was leaking from the vehicle. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that there was a coolant intrusion into the cylinder, and that the thermostat and several other unknown parts needed to be replaced. The contact was made aware of an unknown recall however, the VIN was not included. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.