Auto High Beams
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MBWorld Fanatic!
Joined: Apr 2003
Posts: 1,032
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From: Northeast
2012 S350 Bluetec, 2014 GLK250 Bluetec, 2026 E350 4Matic
Auto High Beams
Hi all. I have noticed that my 2015 GL350 automatic high beams seem to not work very well. Sometimes they will not recognize that the red lights in front of me are a car and it leaves the brights on. Also sometimes it will not recognize that the 2 headlights coming toward me in the other lane are a car and again it leaves the brights on. And sometimes it works fine. I had this system in a 2007 Jeep Grand Cherokee and it worked much better. Has anybody else had issues? Was the dealer able to replicate/fix?
Super Member
Joined: Feb 2007
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From: NYC
18 E63s Wagon 15 GL63 (sold), 10 Turbo TT MT, A36 Bonanza, 20 JLU Rubicon
Same problem here... I tend to have to switch the light over and use them manually... Especially on country roads.
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Joined: Nov 2007
Posts: 1,425
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From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
Mine dim too much as well. They aren't very effective on dark country roads, dim when it sees a good reflection from a road sign, dim if you slow down for a deer crossing the road, etc.
Super Member
Joined: Feb 2007
Posts: 947
Likes: 110
From: NYC
18 E63s Wagon 15 GL63 (sold), 10 Turbo TT MT, A36 Bonanza, 20 JLU Rubicon
Junior Member
Joined: Aug 2014
Posts: 36
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From: Az
15 GL550, 13 335i M-sport, 10 Sprinter, 11 Victory Vegas
Mine are way sensitive. The other night the moon kept the brights from illuminating.
Brights also seem to not activate at low speed. Anyone else experience this?
Brights also seem to not activate at low speed. Anyone else experience this?
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MBWorld Fanatic!
Joined: Mar 2007
Posts: 1,653
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From: Central Pa.
2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
The only issue I have with mine is the "back country roads thing"....they don't shift to high on slow twisty back country roads....I have to bring the high's on manually. That's a programmed speed issue.....
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2015 GL450
https://mbworld.org/forums/e-class-w...ml#post4863391
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Joined: Jul 2009
Posts: 814
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15 GL550
I had mine on a two hour drive on high speed country backroads that had posted speeds of 50-55 and the lights worked close to flawlessly. A handful of signs caused the lights to dim briefly but it was rare. Remember that the lights are also programmed to dim if there is street lighting.
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Joined: Nov 2007
Posts: 1,425
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From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
You can turn them off completely via the center console. But most of us just turn the headlights to 'on/1' instead of 'auto' and then they will stay on when the stick is pushed forward and not go off until you pull the stick back.
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Joined: Sep 2013
Posts: 57
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GL 350
To use the manual high beams, just turn the light switch one notch clockwise from "auto" manual high-low beam headlight mode and depress the washer control to get high beam. This also gives you an automatic beam with the automatic lights when you go back to the "auto" position. The light switch is just to the left of the steering column on the dash.
Last edited by Ed Wolcott; Nov 23, 2014 at 08:15 PM. Reason: add item
