See also:

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. ...

Applying
The lever automatically engages after being pulled up. ...

Maximum cooling
Press the button. The system is set to the lowest temperature, maximum air volume and recirculated-air mode. Air flows out of the vents for the upper body region. Open them for this purpose. ...