From October 14, the new UK MOT LED bulb requirements change what testers must accept in compatible halogen headlamp units. Drivers of class 3, class 4, class 5 and class 7 vehicles are affected, while class 1 and class 2 motorcycles are excluded.
The rule covers ECE-approved LED replacement bulbs fitted to existing halogen headlamp units. Garages will have to look for a secure approval sticker, and a vehicle can fail if that sticker is missing, unreadable, tampered with or does not match the bulb fitted.
ECE sticker check
Under the change, garages do not need to check the ECE approval number, approval markings or manufacturer details against databases, records or paperwork. The test narrows to the sticker itself, which must be permanently fixed to the vehicle and easy to see during an MOT test.
That gives drivers a simple compliance step: the bulb kit must carry the approval sticker and the sticker must stay legible. A replacement bulb fitted without that sticker no longer clears the same test path, even if the headlamp unit itself is compatible.
Class 3 to class 7
The covered vehicles are class 3 tricycles, class 4 cars, class 5 vehicles and class 7 goods vehicles. The change excludes halogen headlamp units converted to use high intensity discharge bulbs and full LED headlamp unit replacements.
A vehicle will also fail its MOT if the test result lists dangerous or major problems with the vehicle. For drivers fitting LED replacement bulbs, the practical task is to keep the approval sticker intact and visible before the MOT appointment, because that sticker is now part of the pass-or-fail check.
From October 14
The rule change is narrow but immediate. It does not create a wider approval check for the whole headlamp system; it gives testers one thing to look for and makes the sticker the deciding item when these bulbs are fitted to compatible halogen units.
