See also:

BAS PLUS (Brake Assist System Plus)
BAS PLUS is only available in vehicles equipped with DISTRONIC PLUS. Observe the "Important safety notes" section. At speeds above approximately 4 mph (7 km/h), BAS PLUS assists you ...

Correct driver's seat position
Observe the safety guidelines on seat adjustment. - Check whether you have adjusted seat 3 properly. Electrical seat adjustment When adjusting the seat, make sure:     - you ...

Tires
The specified tire pressure is printed in yellow on the emergency/collapsible spare wheel. ...