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.
The "convenience opening" function can be operated using the key without switching on the vehicle. The key must be in close proximity to the driver's or co-driver 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.