Mine passed with HID's and a decat so I wouldn't worry about that mate
Sam
I copied this from the NCT manual though:
Where HID (High Intensity Discharge) bulbs are fitted switch on the headlights and check that cleaning devices such as headlamp 4. wipers or high pressure water jets are present and work. Check where possible that the headlamp levelling device is working.
HID headlamps must be installed as a complete type-approved system. The system will include automatic cleaning. HID headlamps can be recognised by:
a) the light having a bluish tinge,
b) the light taking a few seconds to reach full intensity,
c) the headlamp having an igniter module/inverter behind the headlamp,
d) the headlamp having ”DC” (for HID dipped beam), “DR” (for HID main beam), or “DCR” (if both are HID) marked on the lens. This marking should be visible from the exterior of the vehicle but in some cases the markings may be hidden under the bonnet and this may need opening to obtain a clear view.
Reasons for failure:
-HID bulb fitted in a non-HID headlamp.
-Automatic headlamp levelling device not operating or manual headlamp levelling device cannot be operated from driver’s seat.
-Mandatory headlamp cleaning device not present.
-Mandatory headlamp cleaning device not operating.