Changes to MOT rules around Headlight Conversions

[Blobcat]

March 2021 Headlamp Conversions MOT Manual

 

[00slk]

About bluming time!

 

[Gazwould]

How can they see behind milk bottle projector lenses ?

 

[EmilysDad]

How can they see behind milk bottle projector lenses ?

....

by opening the bonnet?

 

[Gazwould]

And see what ?

 

[bob 6600]

In the case of a HID kit, a ballast or ignitor?

So, this means any vehicle from the old B/C reg will automatically fail if it has a conversion done (by conversion, I mean just the bulbs replaced).

Can't see much changing in the real world, plenty of people know a 'friendly' MOT tester and once they are in, unlikely to be stopped by the Police, unless they are going to target cars with wrong coloured bulbs or that seem excessively bright (unlikely)

 

[LostKiwi]

HiDs are easy. They have a warm up.
LEDs are instant. If you know what to look for its obvious (even before looking at colour temps).

You don't even need to know the build sheet details. The outer lens tells you what it should have.

 

[flowrider]

Not much changed then other than cars used before 1st April 1986 are exempt.

 

[Blobcat]

Not much changed then other than cars used before 1st April 1986 are exempt.

And motorbikes

 

[EmilysDad]

And see what ?

What they ^^^ said.
And HID kits will have wires going through the cover over the back of the converted bulb .... that's what the converted Smart 451 had when I first bought it

 

[EmilysDad]

Not much changed then other than cars used before 1st April 1986 are exempt.

but there were a lot of cars registered after April 86

 

[flowrider]

but there were a lot of cars registered after April 86

There are and under the existing rules they should fail already.

 

[EmilysDad]

There are and under the existing rules they should fail already.

Agreed, but in reality, there are not many pre April 86 cars still as daily drivers

 

[Gazwould]

What they ^^^ said.
And HID kits will have wires going through the cover over the back of the converted bulb .... that's what the converted Smart 451 had when I first bought it

And that they can't see ?

 

[LostKiwi]

And that they can't see ?

View attachment 66668



View attachment 66669

Colour temp?
An led also generates a shadow each side of the luminous point due to the mounting system. A halogen bulb only one side.

 

[Gazwould]

But what are they actually looking for , the link says Jack...

 

[EmilysDad]

But what are they actually looking for , the link says Jack...

they're looking for illegally fitted HID kits ..... and if found, the car fails its MOT

 

[Gazwould]

How , no method notes , everyone is guessing at this point , yes HID is much more obvious but some LED that just fit in the housing behind a thick projector lense more tricky .

It's like the DPF MOT test , you have to know the ins and outs to get a complete understanding rather than saying.. = instant fail .

 

[LostKiwi]

How , no method notes , everyone is guessing at this point , yes HID is much more obvious but some LED that just fit in the housing behind a thick projector lense more tricky .

It's like the DPF MOT test , you have to know the ins and outs to get a complete understanding rather than saying.. = instant fail .

As I've said. Colour temp is a giveaway as is time to full brightness. HiD are very slow, halagen are faster and LED instant.

 

[Gazwould]

But we don't know what exactly they are looking for , so it's all guesses at this point.


Fail or pass ?