See also:

Remove attached parts following use
Remove auxiliary mirrors, roof or rear luggage racks which are no longer required following use. Attached parts on the vehicle impair the aerodynamics and increase the fuel consumption. ...

Compartments in the doors
Do not stow any breakable objects Do not store any breakable objects, e. g. glass bottles, in the compartments, or there is an increased risk of injury in the event of an accident.◄ ...

Snow chains
Only certain fine-link snow chains have been tested by BMW, classified as safe for use and recommended. Consult your BMW center for more information. Snow chains must be mounted in pairs and on th ...