S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Headlights On During the Day

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Old Sep 5, 2020 | 08:34 PM
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ChuckinTucson's Avatar
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2012 S63, 2013 E350 Bluetec
Headlights On During the Day

It seems lately that even in broad daylight, my headlights will turn on. If I move the switch on Auto to Off, they still stay on. No matter what position the switch is in, the headlights won't turn off. I have a feeling I'm due for a new headlamp switch. Does anyone know where the light sensor is on this car? 2012 S63.
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Old Sep 5, 2020 | 09:09 PM
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2007 CL550
It's the square ones at the top of the windshield by the rearview mirror.
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Old Sep 5, 2020 | 10:16 PM
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2010 E550, 273 Engine: 2012 S550, 278 Engine
Originally Posted by ChuckinTucson
It seems lately that even in broad daylight, my headlights will turn on. If I move the switch on Auto to Off, they still stay on. No matter what position the switch is in, the headlights won't turn off. I have a feeling I'm due for a new headlamp switch. Does anyone know where the light sensor is on this car? 2012 S63.
In my 2010 E550 it is the same, lights stay ON even when OFF positio0n is selected. If you want to have the light to go OFF you need to go to menu and deactivate the automatic high beam or the DRL. Don't remember which one it is but one of those will make the lights go OFF when light switch is at OFF position.

Lights coming ON at daylights is something else Could be light sensor or rain sensor as rain sensor will also turn lights ON if it sees rain.
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