See also:

Weights
Never exceed either the approved axle loads or the gross vehicle weight. ...

On the front passenger seat
Deactivating airbags After installing a child restraint fixing system in the front passenger seat, make sure that the front, knee and side airbags on the front passenger side are deactivated. ...

Automatic deactivation during forward travel
The system switches off when a certain driving distance or speed is exceeded. Switch the system back on if necessary. ...