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 |
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. |
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 |
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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