Hi Hans, this will only occur if the headlights are switched to activate Automatic operation. In my Z4 I have to turn the headlights switch to the left to activate auto lights whereas turn to the right is "manual" operation.the headlights will come on automatic at dusk (or in tunnels)?
I have a "LeatherZ" armrest in my Z4 and also some Elbow rests on the door cards. All good stuff, highly recommended
Tony.