E-Class (W212) 2010 - 2016: E 350, E 550

Adaptive Highbeam Assist Confusion

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Old 03-31-2024, 08:59 PM
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2006 E320 CDI
Adaptive Highbeam Assist Confusion

On my E250 Bluetec, adaptive highbeam assist doesn't seem to be working, even though I think I'm meeting all the conditions outlined in the manual. Both green lamps are illuminated in the instrument cluster. But, even when going at speed down the darkest roads, high beams won't come on automatically.

Am I missing something obvious?
Old 03-31-2024, 09:05 PM
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What do you consider "at speed"? Have you scanned for codes?
Old 03-31-2024, 09:07 PM
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Well above the 19 mph specified in the manual.

No codes.
Old 03-31-2024, 09:14 PM
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Originally Posted by shertex
On my E250 Bluetec, adaptive highbeam assist doesn't seem to be working, even though I think I'm meeting all the conditions outlined in the manual. Both green lamps are illuminated in the instrument cluster. But, even when going at speed down the darkest roads, high beams won't come on automatically.

Am I missing something obvious?
And you obviously have automatic high beam enabled in the cluster menu with the auto high beam sign on, right?

What year is your car?
Old 03-31-2024, 09:20 PM
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The auto high beam sign is on. But I don't see anything in the cluster menu under lights.

It's a 2014.
Old 04-01-2024, 05:30 AM
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Originally Posted by shertex
Well above the 19 mph specified in the manual.

No codes.
What scan tool did you use?
Old 04-01-2024, 08:53 PM
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Originally Posted by shertex
The auto high beam sign is on. But I don't see anything in the cluster menu under lights.

It's a 2014.
Sign on means it is enabled.

Your multifunction camera may have gone bad...
Old 04-01-2024, 08:59 PM
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Alas, it looks like it's not a feature on my particular model.
Old 04-01-2024, 09:26 PM
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Originally Posted by shertex
Alas, it looks like it's not a feature on my particular model.
Do you have option code 608 for your car?
Old 04-01-2024, 09:27 PM
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run your VIN through www.lastvin.com to see if you even have the option installed.
Old 04-01-2024, 09:29 PM
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No...no option 608.
Old 04-01-2024, 09:31 PM
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Originally Posted by shertex
No...no option 608.
Mystery solved!

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