One problem related to water pump has been reported for the 2011 BMW X6. The most recently reported issues are listed below.
The contact owns a 2011 BMW X6. While driving approximately 65 mph, the check engine warning light illuminated continuously. In addition, the vehicle decelerated independently and a reduced power warning message illuminated. The vehicle was taken to a dealer where it was diagnosed that the water pump needed to be replaced. The vehicle was repaired; however, the failure recurred immediately afterwards. The VIN was not included in NHTSA campaign number: 11v521000 (engine and engine cooling). The manufacturer was not made aware of the failure. The approximate failure mileage was 48,000.