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Old 8th July 2019, 19:49   #1
gozo ken
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Default xenon lights self leveling

Do these lights do the ''self check''like the manual adjusted lights do?
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Old 8th July 2019, 21:02   #2
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Yes........
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Old 9th July 2019, 11:53   #3
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I noticed my headlamps 'self-test' only happens every few startups, never at each one. Anyone...?


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Old 9th July 2019, 14:00   #4
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I noticed my headlamps 'self-test' only happens every few startups, never at each one. Anyone...?


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Does it only work at night TC??
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Old 9th July 2019, 18:13   #5
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Does it only work at night TC??

I assume so, that's how I noticed it.


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Old 9th July 2019, 20:20   #6
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I assume so, that's how I noticed it.


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Then they may not self check if they are not switched on
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Old 9th July 2019, 20:29   #7
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they only do the self test on the first time you switch your headlights on. It wont do the self test again if you switch your lights off and back on again unless you switch your ignition off and then back on.
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Old 9th July 2019, 20:39   #8
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they only do the self test on the first time you switch your headlights on. It wont do the self test again if you switch your lights off and back on again unless you switch your ignition off and then back on.
do they do the test on the sidelights as well? as mine make the noise and nearly sure they move too, but it has been a while since I put them on on their own, when it was dark enough.
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Old 10th July 2019, 14:34   #9
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I asked because I've never had these lights before,
I heard the headlamp motors move when Big Russ had it on the T4, but never since.
The beam ,when I bought it, was down on the deck and not much use.
So I manually adjusted them,
When I put them on the other evening,they were up in the air and would have blinded oncoming traffic,so I adjusted them again,,,
The two little boxes front and rear seem to have their arms in the correct position,
I also checked to see if the wiring had been chafed.
Can anyone suggest anything else?
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Old 10th July 2019, 18:20   #10
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Can anyone suggest anything else?

I'd say the electro-adjuster has stuck or seized. It's fairly common and may require gaining access to the internal gubbins. If so, it means separating the front lens after cooking the lamps at 100C or so in the oven for ten minutes. The reflector/bulb holder unit is the bit that moves up/down and left-right to provide the correct beam positions. The electric motor inside moves the reflector up and down.


This photo shows the reflector and the three pivot points the allow for the adjustments.




The upper central pivot is fixed to a push/pull adjuster connected by a threaded spindle to the manual up/down adjuster sprocket. The upper right is pushed/pulled by the manual left/right adjuster sprocket. The lower pivot is attached to a stepper motor, which pushes/pulls the lower edge of the reflector, so raising and lowering the beams according to the interior thumbwheel or the suspension gizmos.


If you think this is where you should venture, I have more photos to explain it all.


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