See also:

Number of safety belts
Your vehicle has been fitted with five safety belts for the safety of you and your passengers. However, they can only offer protection when adjusted correctly. ...

For US customers
The following only applies to vehicles owned and operated in the US. If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediate ...

BMW Maintenance System
The maintenance system directs you to required maintenance measures and thereby supports you in maintaining road safety and the operational reliability of the vehicle. ...