GLK-Class (X204) Produced 2008-2014

Leveled the headlights

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Old Nov 29, 2011 | 12:18 AM
  #1  
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Leveled the headlights

I have the bixenons and I always thought they were aimed way too low when I got it. I used to retrofit headlights, so I used the rule of thumb of parking 25 feet away and making sure the lowest part of the beam cutoff is 2 inches below the level of the headlight. In my case, the hid peojector is approximately 31 inches above the ground (may be different depending tires/wheel diameter), so at 25 feet from a wall, the lowest part of the beam should be at 29" above the ground on both sides. However, before adjustment they were around 27". I brought both sides up to 29" and I can see much farther without blinding oncoming traffic.

This sets the baseline off of which the "self-leveling" mechanism works.

Last edited by koojo; Nov 29, 2011 at 12:23 AM.
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Old Nov 29, 2011 | 12:43 AM
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Did you remember to deactivate the auto leveling motor before you adjusted the lights?
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Old Nov 29, 2011 | 01:00 AM
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Nope, didn't know I had to. Oh well, they still work fine.
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Old Nov 30, 2011 | 12:49 AM
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darn...wish I could do this with factory bi-xenons.... it does seem a bit lower.
The C Klasse looks really sharp like a "diamond" shining out.
With the GLK's can't seem understand why it does not look "wow"?
Any easy tip to make these adjustments?


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Old Dec 1, 2011 | 09:47 AM
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Originally Posted by mr.mbenz
darn...wish I could do this with factory bi-xenons.... it does seem a bit lower.
The C Klasse looks really sharp like a "diamond" shining out.
With the GLK's can't seem understand why it does not look "wow"?
Any easy tip to make these adjustments?


You can do it on factory bixenons, that's what I have. You need an allen wrench to adjust them. There is hole above each headlight that you can see when you pop your hood.
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Old Dec 1, 2011 | 04:19 PM
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It's easy to adjust
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Old Dec 27, 2011 | 10:51 PM
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koojo,

thanks for the update. I noticed when i used the horn, the light aimed up to where when I first got the GLK.
I tried again on the highway (open road) and what a difference it made!

When you make the adjustment, is it permanent or do you have to keep resetting it?
I do not know if the dealer adjusted these or they adjust themselves...but the range of view is much less than when first driving for a month or so ...
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Old Dec 27, 2011 | 11:57 PM
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Adjusting the headlights will find a base level off if which the self-leveling mechanism can work off of. The base level does not change unless you physically pop the hood and use an allen wrench to adjust them to a new base level.
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Old Dec 28, 2011 | 04:30 PM
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i need to adjust mine as well as it was a pita driving to whistler with the lights really low and i have to constantly pull the level to high-beam to see where i am going to. do i need the dealer adjust this or can i just do it mysel without messing the autolevel feature of the headlights?
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Old Dec 29, 2011 | 11:45 AM
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Originally Posted by mr.mbenz
koojo,

thanks for the update. I noticed when i used the horn, the light aimed up to where when I first got the GLK.
I tried again on the highway (open road) and what a difference it made!

When you make the adjustment, is it permanent or do you have to keep resetting it?
I do not know if the dealer adjusted these or they adjust themselves...but the range of view is much less than when first driving for a month or so ...


Using the horn affects the headlights..?
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Old Jan 1, 2012 | 09:41 PM
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Originally Posted by rmfnla


Using the horn affects the headlights..?
sounds crazy...but yes...when you honk while driving and if you got the bi-xenon that have the adaptive technology, the lights in fact bounce up another 50-100 yards from original position.
Gotta try it to believe it. Do it on a dark road and see the difference.
This is the level of adjustment I need to make but yet to know how I can do so, perfectly?

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Old Jan 3, 2012 | 07:55 PM
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hmmm.....I'll try this tonight and see if that works....I am not a honk person just a finger and yell person.
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Old Jan 5, 2012 | 10:21 PM
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Originally Posted by shotgun_banjo
hmmm.....I'll try this tonight and see if that works....I am not a honk person just a finger and yell person.
was at the dealer today and had the MB advisor stand about 25 feet in front of the GLK and I honked...and even he could not believe it either.

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Old Jan 6, 2012 | 12:48 AM
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That's so cool! I have to try that with my S haha
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