See also:

Setting the language
Press the adjustment button for 12‑13 seconds. Briefly press the adjustment button again to switch between English "E" and German "O". The setting is automatically saved ...

Switching the interior lamps on and off
Press the button. To switch off permanently: press the button for approx. 3 seconds. Switch back on: press button. ...

In the center armrest in the rear
Storage is possible in a vertical or horizontal position in the center armrest. ...