BMW TSB #B513416
2014 BMW 428
Affected Component: EQUIPMENT ADAPTIVE/MOBILITY
- RAISING OF WIND DEFLECTOR AT A HIGH SPEED. Unintentional lifting of the wind deflector occurs at a high speed and it is perceived that it may possibly detach. CAUSE Rear seat backrest not locked. This is not visually detectable at first glance. Make the customer aware of the proper rear seat engagement.