See also:

Backrest width
Change the width of the backrest using the side wings to adjust the lateral support. To make it easier to enter and exit the vehicle, the backrest width temporarily opens fully. ...

Parts and Accessories
For your own safety, use genuine parts and accessories approved by BMW. When you purchase accessories tested and approved by BMW and Genuine BMW Parts, you simultaneously acquire the assurance ...

Have maintenance carried out
Have vehicles maintained regularly to achieve optimal vehicle economy and operating life. Have the maintenance carried out by your service center. Please also note the BMW Maintenance System, r ...