See also:

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. ...

4MATIC (permanent four-wheel drive)
4MATIC ensures that all four wheels are permanently driven. Together with ESP®, it improves the traction of your vehicle whenever a drive wheel spins due to insufficient grip. WARNING If a ...

Adjusting the active multicontour seat
The active multicontour seat on the driver's side automatically adapts the sides of the backrest to your current driving style. You can adjust the contour of the seats individually so as to pr ...