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-   -   Headlamp beam pattern incorrect. (http://www.haynes.co.uk/forums/showthread.php?t=14052)

Wain 26th February 2017 12:49 PM

Headlamp beam pattern incorrect.
1 Attachment(s)
I have attached an image of my current light beam pattern. Failed the IVA because of the blur around the flick up.
MX5 loom, headlamps from CBS, replaced the bulbs. Any ideas what could be causing the blur?

garyt 26th February 2017 04:17 PM

Mm I'm not sure but are both light images the same n/ and o/s ? On projected image there are only 3 variables ,1 lenses or 2 bulbs or 3 reflectors
I ware the light units a pair ? As if there is a blur I would suspect the lens
What size lights I have a spare 7" lens unit if required

Wain 26th February 2017 05:16 PM

I have pretty much ripped the wiring appart and checked all earths to rule that out, changed the bulbs and now thinking lens as well.
Yes they are 7", if they will fit i will give them a try. Shall i pm you my address?

garyt 26th February 2017 06:16 PM

Yes pm me your address I have one spare unit that you are welcome to at least if that sorts the issue then your halfway there, will get it posted tommorow all being well

garyt 26th February 2017 07:39 PM

Message received will get it posted tommorow oh and I have ignored the other part of the message ;)

Wain 26th February 2017 08:21 PM

Thank you, appreciated. I will let you know what difference it makes to the pattern once it is fitted.

garyt 27th February 2017 04:09 PM

posted this afternoon , hope it helps

Cropper 28th February 2017 12:33 PM

I failed the IVA on the same thing, MX5 build with 5 3/4" headlights, all brand new. I was advised by the tester to get better bulbs, as they had seen this issue before, so i stumped up for the best bulbs i could & it passed OK second time. Just a note that the kick up they fail you on isn't tested on an normal mot!

Wain 28th February 2017 01:29 PM

Got the retest next Tuesday so im hoping changing the lens and new bulbs will do the trick.

Wain 28th February 2017 09:46 PM

1 Attachment(s)
Received it today, thank you Gary. Noticed it is the same make and model though as the ones i have..
Anyway, connected it and it made a massive difference. Before

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