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S80 '06-'16 / V70 & XC70 '07-'16 General Forum for the P3-platform S80 and 70-series models |
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MOT Test updated Jan 21 - LED upgrade bulbs now a failViews : 516 Replies : 6Users Viewing This Thread : |
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Jan 18th, 2021, 14:07 | #1 |
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MOT Test updated Jan 21 - LED upgrade bulbs now a fail
Just an FYI - the MOT test was updated a few days ago - previously the requirement to fail halogen lamps where upgrade bulbs had been fitted was specific to HID only, this has now been changed to both HID & LED upgrade lamps.
https://www.gov.uk/guidance/mot-insp...hicles/updates
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Jan 18th, 2021, 14:20 | #2 | |
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Jan 18th, 2021, 15:06 | #3 |
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yes as long as they are still 55w/60w
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Jan 18th, 2021, 16:07 | #4 |
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Reading the advice paper, the addition of LED bulbs to the regulations for testing HID bulbs is to close the technical loophole which left LED bulbs unregulated. Now they are regulated to the same level as HID bulbs. It is the fine print on the regulations for HID bulbs which needs scrutiny. Having looked at it the wording seems to allow two of the three conditions to be legally sidestepped.
Firstly the cast iron condition is the need to have headlamp washers for any bulb system other than incandescent bulbs. Not insurmountable, even if your model didn't have them fitted, higher spec models did and these can be retro-fitted. The two questionable conditions are the lamp housing and the ability to adjust the height of the beam. For many years owners of all manner of marques believed that this requirement related to self levelling headlights to avoid blinding oncoming drivers because that is what brand new cars had. Close reading of the guidance notes shows that the need is not for self levelling lights but merely lights whose beam level can be adjusted by the driver without leaving the driving seat. Many Volvos have this ability and those that do not may also be able to retrofit manual levelling systems using genuine Volvo parts. In fact the notes go further to absolve the tester from searching for evidence that will confirm that a factory fitted self levelling light system actually works! That only leaves the lamp housing and here there are strict rules that the housing must be a projector lens system which will not scatter blinding light. The notes go further and advise the tester how to confirm that the lamp housing is approved if he is in any doubt. However, most MoT testers can identify a projection lens housing when they see one and so do not need to seek any additional indication that their judgement is correct. So condition one is solidly OK, condition two is also solid if the car has cabin adjustable beam height adjusters. Condition three may be down to whether the tester is confident in his judgement, can find nothing else wrong with the light system and isn't a full blown jobsworth. I know that my Peugeot 406 V6 Coupe by Pininfarina had abysmal lights but it did have headlight washers, manual beam level adjusters operable from the cabin and projection lenses on the dipped beams. I uprated the lighting to HID and never had a failure in the MoT. In fact the original lights were so bad, to the point of being dangerous on a performance car, that I was prepared to remove the HID system for testing and then replace it as I valued my life more than an infringement of the rules. However, it was never necessary and I suspect that the same will apply to all Volvos with projector lamp housings. You have to read the guidance notes very carefully on this subject and not jump to conclusions as to what they say even if what they say isn't what the legal drafters had in mind when they wrote them!
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2012 XC70 SE Lux Polestar 230 bhp D5 Auto Oyster Grey Last edited by Tatsfield; Jan 18th, 2021 at 16:12. |
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Jan 18th, 2021, 18:39 | #5 | ||
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Indeed...
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Jan 18th, 2021, 23:19 | #6 |
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Jan 19th, 2021, 15:21 | #7 | ||
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My Nissan Leaf had LED dip beam in a multi-faceted reflector without headlamp washers. My Tesla model 3 has LED dip and main beams in multi-faceted reflectors without headlamp washers. Both are type-approved that way. There ARE requirements for headlamp washers to be fitted when the light source is over 2000 lumens (for halogen and LED) or greater than 25W Xenon (most Xenons are 35W hence the thought that "Xenons require washers", but there have been cars equipped with 25W Xenon to circumvent that requirement (eg 2012-2015 prefacelift Tesla Model S in europe used 25W Xenon without washers)). A great many models now from VW, Merc, BMW etc have <2000 lumen LED headlamps without washers - in many cars that's now the basic standard headlamp, and the "upgrade" option is to a more complex(matrix)/higher power LED array (which may then require a washer function and auto levelling function). |
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