kas206 said:
Is there a guide on this anywhere?
All the info is here
You'll probably need a different FRM (module that controls the lights). Either FRM2 XE or FRM3 XE/MAX. Quarry Motors is a good source.
Regarding the MOT, mine passed last year without comment.
The VOSA note that was posted above dates from 2011, so the current MOT testing manual (April 2013) supercedes it.
It clearly states that washers and a levelling system may not be fitted, and that they can only be tested if fitted.
This is because there are cars out there without washers/levellers from the factory, e.g. Mitsubishi Evo.
Don't think our Mini with LED lights has washers either, and they're far brighter than the E8x Xenons.
If you keep the halogen light switch and code them correctly, the manual level control will still work, so you can bump them down a bit if you have a heavy load in the boot.