M-Class (W166) Produced 2012-2015

Adjust headlights.

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Old 10-24-2017, 02:21 PM
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Adjust headlights.

Hi All,
Can someone provide guidelines how to adjust headlights? Need to get them down a little.
I remember reading some posts here and it was stated there is a small hole for screwdriver.
Cant find anything.
Please help.
Old 10-25-2017, 05:23 AM
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2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
Found it within 3 seconds. Above the drivers side headlamp, close to the warning sticker about the 25000 volt shock danger, there's a hole in the rad support. If you shine a flashlight down that hole, you should see a whitish Allen (hex) bolt head. I'm guessing that with a +/- 12" 1/4" extension or two and an Allen head bit you should be able to adjust it easily enough
Old 10-25-2017, 02:17 PM
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Yep. Its there, vertical adjustment.
Its better to use Torx T-40 fits right in and much easy to use.
Were is horizontal screw?
Attached Thumbnails Adjust headlights.-photo100.jpg   Adjust headlights.-photo822.jpg   Adjust headlights.-photo962.jpg  
Old 10-25-2017, 04:03 PM
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I checked and....uhhhhh, no idea whatsoever...

And it's weird that a Torx fits better. Just checked again and I swear that's an Allen head screw

Last edited by peter2772000; 10-26-2017 at 04:42 AM.
Old 10-25-2017, 08:53 PM
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Originally Posted by peter2772000
I checked and....uhhhhh, no idea whatsoever...

And it's weird that a Torx fits better. Just checked again and I swear that's an Allen head scrfew
Yes it is, there is a hole right in the middle, and I believe its actually designed for it. ))
Old 10-26-2017, 04:43 AM
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You talking about the vertical screw, or horizontal?
Old 10-26-2017, 09:40 AM
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Originally Posted by peter2772000
You talking about the vertical screw, or horizontal?
Vertical. Still looking for horizontal.

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