What additional hardware is present when you have Xenon lights?
 

Whenever I fire up BMW Scanner 1.4.0 I get a report of al the options on the car, and I see '0522 - Xenons' in the list. However, the scanner later goes through searching all the modules that are on the communication bus of the car.

When it does that search, I can see that there are two modules XENL and XENR (Xenon left and right , respectively) which the scanner always says it could not find.

Should those 2 modules have been found since I have Xenons?

Actually, what hardware should be there visible to the human eye (without taking the car apart) and reported on the scanner software when you have Xenons?

Thanks!

Not really sure what modules scanner is trying to find as there are non with bus connection on headlights. Only headlight modules with bus communication are with adaptive headlights (524) which were not available on pre-facelift models