Ventilating the vehicle before starting a journey (convenience opening)
WARNING Risk of entrapment when opening a side window
When opening a side window, parts of the body could be drawn in or become trapped between the side window and window frame.
When opening, make sure that nobody is touching the side window.
Release the button immediately if somebody becomes trapped.
You can ventilate the vehicle before you start driving.
To do this, the key is used to carry out the following functions simultaneously:
unlock the vehicle
open the side windows
The "convenience opening" function can only be operated using the key. The key must be in close proximity to the driver's or co-driver's door.
Press and hold the 
button on the key.
button on the key. The following functions are performed:
the vehicle is unlocked
the side windows are opened
To interrupt convenience opening:
release the button.