With respect to the headlights: I would suggest that you try to adjust the beam pattern with the correct incandescent bulbs installed.
The units were designed around that tiny but very bright filament, and its position inside the unit is critical for achieving the correct pattern.
You're probably not going to be able to achieve that with retrofit LED bulbs. And I probably mentioned this before: it is why to this day ONLY incandescent (halogen) bulbs are street legal in these units over here.
With those halogens, you will be looking at adjusting to this pattern in LHD countries:
|