The official notice
Defect
On a small number of vehicles, a body panel behind the right tail light housing may not have been sealed properly. As a result, water could leak into the trunk and cause the park distance control and electronic power steering not to work. Additionally, over time, wiring in the trunk could become damaged and cause a short circuit or electrical arcing (sparks). Note: This problem would cause a warning to display in the instrument cluster.
Safety Risk
A loss of power steering assist can cause a sudden increase in steering effort, especially at low speeds, and increase the risk of a crash. A short circuit or electrical arcing can create the risk of a fire or injury.
Remedy
None of the affected vehicles have been delivered to customers. BMW will instruct dealers to inspect and, if necessary, apply seam sealer to the body panel before each vehicle is delivered.