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General E46 Forum
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Old 05-08-2014, 01:00 PM   #1
MrWoppit
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What's under the third mirror? '00 328i

I had my 2000 BMW 328i 82k miles in a shop today for an oil change.
I provided the oil (0w40 Mobil 1) and my own filter.

When I picked up my car after the oil change, the third mirror was adjusted. I NEVER touch that mirror.. They messed with it.

Then, after getting in my car after lunch, I noticed the cover (two black plastic pieces) fell away and showed some mechanics.


What are they? What sensors or what is the thing under my third mirror? I do not have remote start. It seems to big for just keyless entry.

Whatever it is, why would the oil change person be messing with it?
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Old 05-08-2014, 01:07 PM   #2
erickonphoenix
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if by third mirror you mean the Rear View Mirror? If so then that might be the wiring for the alarm indicator you don't have installed on your car. It's a red light that hangs under the RVM. I thought it was on all cars but perhaps it wasn't on yours or was removed by a previous owner. I have no idea why an oil tech would mess with your RVM unless he was adjusting it for his level.
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Old 05-08-2014, 01:24 PM   #3
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Yes, I meant rear view mirror. And I am also lost why he was messing with it. I kinda wanna go back and ask...
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Old 05-08-2014, 01:43 PM   #4
Alex323Ci
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he probably adjusted it or hit it while doing a drive like in Ferris Bueller's Day Off
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Old 05-08-2014, 01:49 PM   #5
NOVAbimmer
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I prefer mechanics to use the force while backing my car in a parking lot, that way I don't have to worry about readjusting my mirrors when I get in.
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Old 05-08-2014, 01:53 PM   #6
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..OP, don't worry, it happened to me also. Mechanics just have this urge for a short burnout, with somebody else's car Probably, they thought: what the....safety first...adjusting the mirror and fastening your seatbelt.
Or, they simply moved your car around, to free up the elevator / working station and they needed an adjusted rearview mirror, to park it.

Anyway, if I am right, based on other posts, on this forum, there should be some cables, there, for an LED light, within what some call "clown nose"...that plastic bulb shaped knob, which you use to dim the mirror. That LED would be related to the factory car alarm and I read somewhere that it flashes when alarm is active. Personally, I have never seen one so don't fully count on my presumtion.
Either that or your rearview mirror has been tapped by some federal agency...

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Old 05-08-2014, 01:54 PM   #7
anandoc
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If these are the two black plastic pieces you are referring to, they house your RLS sensor (rain and light).

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Old 05-08-2014, 02:21 PM   #8
MrWoppit
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Quote:
Originally Posted by anandoc View Post
If these are the two black plastic pieces you are referring to, they house your RLS sensor (rain and light).

That's the piece.

Thanks man.
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Old 05-08-2014, 03:11 PM   #9
B78SYX
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Originally Posted by MrWoppit View Post
That's the piece.
Thought your question was a harder one, not that you are referring to the "elephant in the room"
Just kidding, glad you got your answer.
Indeed that's the rain and light sensor unit, you can see its sensors, through the windshield, from outside. That cover is a little flimsy and maybe the mechanic just hit the mirror, by mistake, while he was in your car to reset its oil service interval and caused the cover to fall, later....

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Old 05-08-2014, 09:31 PM   #10
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Quote:
Originally Posted by NOVAbimmer View Post
I prefer mechanics to use the force while backing my car in a parking lot, that way I don't have to worry about readjusting my mirrors when I get in.
Lmfao
I was thinking the same thing. Who needs mirrors?
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Old 05-09-2014, 10:35 AM   #11
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What in god's name are you going on about? WHO CARES if they adjusted your rear view mirror. Maybe they did so that they can see?!

lol wtf
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