See also:

Having possible commands read aloud
You can have the available commands read out loud for you: ›Voice commands‹ For example, if the "Settings" menu is displayed, the commands for the settings are read out loud. ...

Tire inflation pressure values up to 100 mph/160 km/h
528i 528i xDrive 535i 550i 535i xDrive 550i xDrive ...

Knee airbag
The knee airbag supports the legs in a frontal impact. ...