"Do HID headlamps require washers / self levellers?
Headlamp washing and levelling systems are a legal requirement for high intensity discharge (HID) lamps with a luminous intensity exceeding 2,000 lumens. But unless the luminous intensity is marked on the lamp, a tester won’t be able to tell if these systems are needed.
So, they can only be rejected if they are fitted and are inoperative or obviously defective. If they are missing and you believe they should be fitted, then pass and advise."