Highlight issue
Thread Starter
Newbie
Joined: Sep 2018
Posts: 2
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2011 E350
Highlight issue
I have a 2011 E350 that has an issue with he drivers side headlight. It will come on for about 30 seconds and then go off. Then I get an “adaptive high beam assist inoperative” message on the dash I replaced the. Bulb but still have the same issue. So I swapped the headlights right to left and issue stayed on drivers side. Then I swapped the ballasts side to side and the issue still stayed in the drivers side. Any ideas on what could be causing this?
MBWorld Fanatic!
Joined: Mar 2014
Posts: 3,107
Likes: 394
From: West Central Florida
2011 E550 P2 4M Sedan
Others who have reported this issue have had to replace the headlight assembly or repair it due to a faulty stepper mechanism. Swapping the bulb won't change the behavior, nor would swapping the ballast. But you said that you swapped the headlight - do you mean you removed the headlight assemblies and swapped their positions?
MBWorld Fanatic!
Joined: Mar 2014
Posts: 3,107
Likes: 394
From: West Central Florida
2011 E550 P2 4M Sedan
Here is my thread on getting the headlight assembly replaced - https://mbworld.org/forums/e-class-w...iver-side.html
Here is a thread on repairing the issue - https://mbworld.org/forums/e-class-w...ml#post7512480
Here is a thread on repairing the issue - https://mbworld.org/forums/e-class-w...ml#post7512480
