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Headlight adjustment?

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Old Feb 13th, 2019, 23:16   #1
Baxlin
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Default Headlight adjustment?

My facelift C70 has xenon (adaptive?) dipped beam, but seem to be set rather low. Is there any way to adjust them?

Thanks in advance
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Old Feb 26th, 2019, 12:53   #2
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Having done more searching, it seems there are two white plastic adjusters on each headlight unit, one for horizontal, the other for vertical settings.

Question, is moving these likely to upset the adaptive dipped at worst, just self adjust to the same (low) setting as now, or do what I need it to?

Thanks

Malcolm
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Old Feb 26th, 2019, 14:42   #3
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Quote:
Originally Posted by Baxlin View Post
Having done more searching, it seems there are two white plastic adjusters on each headlight unit, one for horizontal, the other for vertical settings.

Question, is moving these likely to upset the adaptive dipped at worst, just self adjust to the same (low) setting as now, or do what I need it to?

Thanks

Malcolm
HI
missed your first post somehow, sorry. Yes, 2 adjusters one for horizontal, one for vertical - be VERY careful as those snap just by looking at them. Much safer way to adjust is to use allan key and rotate actual cogs, but you can do it only when headlamp is out so its more hassle.
to my knowledge, physical adjusters works standalone to adaptive. Basically you manually decide where 0-100% position is and where adaptive control will always go the same amount degree, the starting and end point will differ, hence you can manually raise-lower them
atleast thats how V50's have, I would imagine C cars would be similar.

again - be SUPER careful with those plastics...
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Old Feb 27th, 2019, 02:53   #4
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Many thanks, extremely helpful!

fortunately Volvo made removing the unit extremely easy, so Iíll pull them and explore further.

Malcolm
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Old Mar 12th, 2019, 23:20   #5
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Just had a thought....

The carís just had to have a new ECU, and itís since then that the lights have been too low, I believe dangerously low.

Is there any input from the ECU to the auto headlight setting, does anyone know, please?
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Old Mar 12th, 2019, 23:39   #6
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Hi
Just wondering, could there be a "calibration" section when plugged in with DICE/VIDA?

Iain
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Old Mar 13th, 2019, 12:22   #7
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Yes, there is a "calibration" tab for adaptive xenons in Vida, thats 100%.
Correct procedure in volvo service is to calibrate lights after any major job affecting the light level (suspension, lamps, even bulb change).
Im surprised however that ECU has any relevence to it. Would imagine CEM contains most of that info, but maybe I was wrong.

why did you need to have ECU changed, just by the way?
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Old Mar 13th, 2019, 18:19   #8
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Donít precisely know, but it was part of quite major series of faults, fortunately mostly covered by extended warranty.
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Old Mar 14th, 2019, 09:01   #9
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My apologies, but I have spent about an hour searching both the forum and my memory.....

Does anyone local-ish to Tring/Aylesbury/Watford area have DICEVIDA, (or whatever the correct name is!?) and be willing to look at my headlights?

Thanks
Malcolm
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Old Mar 14th, 2019, 11:23   #10
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Quote:
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Donít precisely know, but it was part of quite major series of faults, fortunately mostly covered by extended warranty.
Just a thought - if that was extended warranty (by Volvo?) and replacing ECU really made headlights reset settings, calibration should be part of work carried out FOC no? Kinda like if steering rack was replaced under warranty, I would expect wheel alignment done FOC as part of service.
unless its a different case with you.
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