GLK-Class (X204) Produced 2008-2014

Driver Side Mirror - doesn't dim

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Old Oct 15, 2009 | 10:26 PM
  #1  
Baby G's Avatar
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From: Mississauga, ON
GLK 350
Driver Side Mirror - doesn't dim

Hey guys,

I am pretty sure the driver side mirror used to dim (at night) if you had traffic with their headlights on. For some reason last two nights, I don't see it dimming and see it crystal clear instead of being grey.

Can folks confirms that I was not dreaming things?
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Old Oct 15, 2009 | 10:51 PM
  #2  
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GLK 350 / Porsche 993
Yea driver's site should dim when lights shine on it. It dims even when I'm in a parking garage and there is opening behind me where day light is coming from. (you might rememeber those pics of small mirrors I posted a few month ago, and you can even see that mirror was dimmed)
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Old Oct 15, 2009 | 10:55 PM
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Baby G's Avatar
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Thanks NYC, time to visit the dealer again...
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Old Oct 15, 2009 | 11:30 PM
  #4  
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From: Toronto, ON
GLK 350 4matic
Originally Posted by Baby G
Thanks NYC, time to visit the dealer again...
the mirror will darken in this condition:
1. The light sensor next to the parktronic sees low outside light, and
2. The light sensor in the middle of rear mirror senses rear light.

Let us know the result of your dealer visit.
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Old Oct 16, 2009 | 03:47 PM
  #5  
Baby G's Avatar
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Alfred will do, appointment is for Wednesday morning...
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Old Oct 17, 2009 | 06:44 PM
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GLK350
Just wondering: did you by any chance clean the driver side mirror with Windex?

Windex contains chemical that will kill the darkening properties of these mirrors. I cleaned the inside mirror on my old 99 3.2 TL with Windex then I notice the black region getting smaller and smaller until it is all gone
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Old Oct 17, 2009 | 07:43 PM
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maybe the ammonia in windex.. it can't be used on tint either. ammonia weakens the tint and uv pretection.

Last edited by EnigmaAW; Oct 17, 2009 at 07:46 PM.
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Old Oct 18, 2009 | 09:41 AM
  #8  
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From: Scarborough, Ontario
2020 CLA 250 4Matic Black
actually the driver side mirror does dim, but it depends on the sensor at the back of the rearview mirror. I think its somewhere near the top right (facing it) at the back. If you block this area during the day, you will see both the side and rearview mirror dim.
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