See also:

Important safety notes
WARNING The PARKTRONIC is a supplemental system. It is not intended to, nor does it replace, the need for extreme care. The responsibility during parking and other critical maneuvers always ...

Immobilizer
The immobilizer prevents your vehicle from being started without the correct SmartKey. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be starte ...

Important safety notes
Important safety notes Do not leave the SmartKey in the cargo compartment. You could otherwise lock yourself out WARNING   When leaving the vehicle, always remove the SmartKey from the ...