My new beast is here and the sticker says 339 - Active headlamps. However, when you turn on the ignition the lamps test up and down but not side to side. Admittedly the car is still in the wrapper from the transport. Does this feature have to be turned on somehow? I did not get the side mirror lamps btw...

 

My car does not do the side by side test either, but they do work so dont worry.

 

My car also does not do the side to side "self check", but the lights work perfectly..... Glo-jo (a member here in the w211 forum has confirmed that the cars do not do the side to side check anymore.... Don't sweat a thing and enjoy your new ride....

 

Thanks for the scoop. I can't wait to see how they work!