Adjusting the interior lighting
To switch reading lamps on/off:
hold your hand under the respective reading lamp 
or 
. Control panel inside the grab handle (rear)
To switch reading lamps on:
press button . The reading lamp, the interior lighting in the grab handle and the dome lamp on the respective side of the vehicle will light up.
To switch reading lamps off:
press button once or twice. After pressing it once, the interior lighting in the grab handle and the dome lamp on the respective side of the vehicle will go out.
After pressing it twice, the reading lamp on the respective side of the vehicle will go out.
To switch the rear interior lighting on/off:
press button . The reading lamps, the interior lighting in the grab handle and the dome lamps on both sides of the vehicle will light up or go out.