Sharkbait I presume you are referring to this bit :
Milkie - Member
New MOT Law says:
Where HID or LED dipped beam headlamps are fitted the tester will switch on the headlamps and check the operation of any headlamp levelling and cleaning devices fitted.
The car will fail if a headlamp levelling or cleaning device is inoperative or otherwise obviously defective.
If you haven't got it, it can't be checked... So does this mean you can have HID's without self levelling and cleaning? Not sure.
Rockhopper - Thats exactly what it means - if fitted they must work but you don't have to retro fit.
Rockhopper still misses the point.
HID`s and LED Headlights where fitted MUST be fitted with self levelling systems and Washers.
MUST be fitted in order to comply with homologation requirements.
All factory fitted HID / LED lighting systems have these systems in place.
Therefore if they are not fitted, but the car has HID /Xenon look bulbs, then it will fail, because they are not factory fit Lighting and not road legal.
If it has HID`s it MUST have self levelling and washers.
Its an easy spot for the testers
DS lightings site was written a while ago, but the information contained within is still very valid for anyone with Halogen bulbs (Especially on older VW`s which suffer huge voltage drop before the bulbs)