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  #1  
Old 04-07-2004, 09:21 AM
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W124 Headlights dim when ABS engages?

During the recent winter i had the pleasure of playing with my ABS system on the snow-covered roads.
I noticed something a bit strange.. My headlights dim very noticeable when the ABS kicks in. Is that normal?

When i turn the starter with the headlights on, they almost doesn't dim at all.
Does the ABS system really require more electrical power than the starter motor?

Freestyler

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  #2  
Old 04-07-2004, 11:13 AM
G-Benz's Avatar
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One of the sysmptoms of a failing alternator (regulator) is the ABS indicator on the dash lights up. So I suspect it requires a considerable amount of current to operate.

That said, I would test your charging system...it may not be up to the task.
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  #3  
Old 04-07-2004, 12:41 PM
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Sounds normal to me. If you use the ABS often enough, it will be turned off as the battery falls below a preset voltage.

While driving, push up on three of your window switches at the same time, with the windows already all the way up. I bet that will dim your lights a little too.

Mike
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  #4  
Old 04-08-2004, 03:40 PM
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Pushing all four window buttons don't make the headlights dim at all.. I just tried.
But when the ABS activates, the headlights dim to about half the normal light output. -And they are dimmed for about a second after the ABS de-activates. Then they flick up to normal strength again..
I find it a bit strange..

Freestyler

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Never criticize someone until you've walked a mile in his shoes. That way, when you do, you're a mile away -and you have his shoes!


'86 300E optically converted to '95 E300 (Sold)
-Blauschwarz on silver
-Black leather
-17" AMG & 15" AMG for winter
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