See also:

BAS PLUS (Brake Assist System Plus)
BAS PLUS is only available in vehicles equipped with DISTRONIC PLUS. Observe the "Important safety notes" section At speeds above approximately 4 mph (7 km/h), BAS PLUS assists you w ...

Tow-starting (emergency starting)
Vehicles with automatic transmission must not be started by tow-starting. This could otherwise damage the transmission. ...

Bead
The tire bead ensures that the tire sits securely on the wheel. There are several steel wires in the bead to prevent the tire from coming loose from the wheel rim. ...