The convenience opening/closing of windows is a feature that is enabled during pre-delivery inspection of the vehicle; For whatever reason some technicians that carry out this pre-delivery inspection do not enable this feature.
It works by pressing and holding the lock button on the key fob and all windows go up after a few seconds. It's the same when unlocking on the car, hold the button and they will all come down:
This can be enabled in Section F, vehicle software settings, using a GDS-M tablet (Global Diagnostic System-Mobile).
English version:
German version:
Information and material thanks to @padigree, @mackenziejackson, @Bill Thomas, @Geoff Fear.
It works by pressing and holding the lock button on the key fob and all windows go up after a few seconds. It's the same when unlocking on the car, hold the button and they will all come down:
This can be enabled in Section F, vehicle software settings, using a GDS-M tablet (Global Diagnostic System-Mobile).
English version:
German version:
Information and material thanks to @padigree, @mackenziejackson, @Bill Thomas, @Geoff Fear.