Just a note on the auto leveling arm..
Luckily iwas working on a spare lamp before i did this.
I accidentally broke the white clip that holds it (The 20th pic).
Anyways the best way i found was..
From the Non xenon bulb side, remove the rubber ring and all the parts you can from it.
Then get either a long needle nosed plier set or two flat screw drivers and another pair of hands,
If you look from the far side of the non xenon lamp, you will see two small plastic self tapping clips that hold the little grill (in the centre on the 19th picture) on in front of the reflector. If you squeeze the top and bottom of the clips and push slightly it will loosen that one.
Then do the same with the bottom one.
That allows you access to the white clip which you can loosten from the reflector side using two flat screw drivers.
Putting it back is also easy, just align it and push the reflector.
Sorry i dont have pics yet i will take the headlamp apart in a few hours.