Horizontal headlight Adjustment?
Thread Starter
Newbie
Joined: Aug 2009
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2009 W211
Horizontal headlight Adjustment?
Hey Guys,
Does anyone know how to adjust the headlights horizontally? I figured out that the phillips head screw is the vertical. I installed aftermarket HIDs and need to recalibrate.
I see a hex screw shrouded under a blue plastic tab -- is that it?
Does anyone know how to adjust the headlights horizontally? I figured out that the phillips head screw is the vertical. I installed aftermarket HIDs and need to recalibrate.
I see a hex screw shrouded under a blue plastic tab -- is that it?
Super Member
Joined: Jan 2008
Posts: 518
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From: Orange County, CA
E350
Supposedly yes, the hex is for horizontal alignment... however in adjusting my OEM headlights, I've found that both the hex and philips head screws control vertical alignment mostly, and the hex adjusts the horizontal alignment by a TINY bit (like I had to turn it around 35 revolutions in order to move my headlight left 1.5 inches when aimed at a wall 30 ft away). Honestly, I don't know why MB didn't make the hex for strictly horizontal alignment, and philips strictly for vertical alignment... it would make adjusting headlights A LOT easier...
Thread Starter
Newbie
Joined: Aug 2009
Posts: 7
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2009 W211
Thanks, I tweaked both to get the right fit. Here's what I found:
Philips is vertical.
Hex is horzontal. To get to the Hex screw, you have to lift up on the front end of a purple/blue tab, and simultaneously pull from the back. Use a flathead screwdriver to accomplish this.
The Hex screw did work perfectly for me, but it took at least 3 full turns to see any change whatsoever. You'll end up turning it a good 15-20 times to get a proper adjustment.
Philips is vertical.
Hex is horzontal. To get to the Hex screw, you have to lift up on the front end of a purple/blue tab, and simultaneously pull from the back. Use a flathead screwdriver to accomplish this.
The Hex screw did work perfectly for me, but it took at least 3 full turns to see any change whatsoever. You'll end up turning it a good 15-20 times to get a proper adjustment.
Super Member
Joined: Aug 2009
Posts: 600
Likes: 2
From: Northern California
09' E350 AMG Sport, 09' C300, 03' Honda S2K
I always though that US headlight, only vertical can be adjusted and not side to side. I was adjusting my headlight last night with a hex key and it only moves up and down.
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2008 E550, 2012 GL450, 2014 GLK350, 2015 S550, 2020 GLC350e
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Supposedly yes, the hex is for horizontal alignment... however in adjusting my OEM headlights, I've found that both the hex and philips head screws control vertical alignment mostly, and the hex adjusts the horizontal alignment by a TINY bit (like I had to turn it around 35 revolutions in order to move my headlight left 1.5 inches when aimed at a wall 30 ft away). Honestly, I don't know why MB didn't make the hex for strictly horizontal alignment, and philips strictly for vertical alignment... it would make adjusting headlights A LOT easier...
Super Member
Joined: Aug 2009
Posts: 600
Likes: 2
From: Northern California
09' E350 AMG Sport, 09' C300, 03' Honda S2K
I have confirm that the hex for my 09 is for vertical adjustment (i was adjusting it again last night). Same thing goes for my 09 C which adjusting horizontal is not a piossibility because it is blocked off.
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Verdad Gallardo2000, 2007, adjust, adjusting, adjustment, aftermarket, class, e350, gti, headlight, headlights, horizontal, mercedes, merecedes, w211
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