See also:

General information
Refuel promptly Refuel no later than at a range of 30 miles/50 km, or operation of the engine is not ensured and damage may occur.◄ ...

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 ...

Long-term vehicle storage
Your service center can advise you on what to consider when storing the vehicle for longer than three months. ...