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Discussion Starter · #1 ·
Hey guys. My auto dimming mirror is not working. Honestly I don’t know when it stopped .... the green light is not on.

I do have power to the bottom because if I hold it for a while, I see the compass zone pop up.

But the compass does not display at all. Nor does the auto dimming mirror function and no green light.

It’s on the same fuse as other things that work so.....it’s not a huge deal. I probably never use it but someday I will sell the car and wanted it to be working. Thanks
 

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Discussion Starter · #2 ·
So yesterday the green light came on and the compass worked.

Today... it’s not working again.

It must be a lose wire. Does anyone know where the connection is? Under the headliner?
 

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So yesterday the green light came on and the compass worked.

Today... it’s not working again.

It must be a lose wire. Does anyone know where the connection is? Under the headliner?
Sounds like the mirror itself could be malfunctioning but probably a good idea to trace your wires and check fuses before spending the money to replace it.

Here's a wiring diagram for the mirror, don't know if it will help or not.

 

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was this ever resolved?
Nope. Sometimes it appears to get power suddenly and illuminate. can only conclude it is the wiring that goes into the roof liner that is causing the intermittent power.

Despite replacing the mirror and calibrating the compass, I have yet to resolve the issue. I

Sent from my Pixel 4 using Tapatalk
 

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2020 Passat R Line Tourmaline Blue / 2018 Passat R Line White
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Do all auto dimming mirrors across models have a green light as I swear my new 2020 passat does not dim and I dont have a green light but my compass works??

how can I "test" auto dimming. I guess by putting my hand behind it and see if it changes....
 
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