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Discussion starter · #21 ·
THANKS, psined1 !!

And will it be obvious which wire feeds module? Color? And is HomeLink fuse identified in master fuse box under the hood, or someplace else? I do have a multimeter. Thanks again.

EHT
Yes, there is only one cable connecting to HomeLink module (a black plastic box on the right hand side). The cable has two wires - one positive and one negative. You can disconnect it from the module inside the mirror and leave everything else connected. Check if you have some voltage there before messing with any fuses. To remind, for safety reasons the module only gets power when the key is turned to position 2 or in ignition.
 
It isn't my intention to necro a post this old, but I was looking for information on how to re-install the mirror and control panel after servicing and just couldn't find anything. Anyone pulling the mirror out is probably going to find this thread so this may be the best place to put it. Here's what I did. I didn't expect it to work this well and hence, no photos.

There are threads (including this one) talking about how tough it is to re-insert the mirror assembly back into its frame. There is a pretty strong spring pushing two pins out and that pressure is what keeps the mirror in place. I put the thing in a vice and squeezed the two pins together. In the "middle", there are collars as well as the spring. I pushed a plain 2mm allen key up from the bottom of the mirror and set it between the collar and the casting on the drivers' side of the mirror. 2mm is about as much as you are going to get. I then backed off the vice until the collar was pinching the key. At this point, I have the drivers' side pin almost fully retracted and the passenger side pin fully extended while an allen key hangs straight down. I twisted the assembly into place and then pulled on the key while holding the assembly in position. Despite the pressure, the key came out easily and locked it in place. Honestly, from the time I "set" the Allen key in place until it was re-installed wasn't two minutes.

I then re-clamped the wires to the control panel and plugged them into their respective sockets. You can move the control panel towards the mirror, close to the roof and pretty much parallel to it. When it was close to that piece of trim around the neck of the mirror, I snapped that trim back into the control panel.

As opposed to removal, where you have to pull down the front of the control panel before the back, you can re-install it "flat", where all posts get pushed back up that the same time. When you snap the mirror-collar-trim back into the control panel, you are left with just enough room to ensure the wires are out of the way and snap it back in place. The only thing left is the cowl that goes over the rain sensor.

Hope this helps the next mirror-thread-searcher!
 
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I understand some have a bias against posting into old threads. I paused with just a thank you over 10 yrs later. This helped me tremendously today. I can only speculate that this is a w211 area where MB made some quality improvements as the w211 aged. 06 E500 in family zero issues; 04 E500 wagon has serious rear view mirror issue. Posting photos and explanations was so kind!

One more observation. The buttons must break because most people will press them too hard. Why? Because, as it turns out, the buttons action appears somewhat delayed compared to remotes which come with most door units, making you subconsciously press it harder and harder until it finally responds. So be a little patient, give it some time before you squeeze the heck out of it.
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Weseman, I don't have any problems with old posts so I would like to chime in and ditto your response. My 2003 ES230 has some intermittent garage door opener issues as well. I just have to push and hold a little longer. I suspect the circuit or button will need to be replaced at some time, but I noticed by pressing in different "angles" also helps enable the connection with the small led on the left. of buttons.
 
It isn't my intention to necro a post this old, but I was looking for information on how to re-install the mirror and control panel after servicing and just couldn't find anything. Anyone pulling the mirror out is probably going to find this thread so this may be the best place to put it. Here's what I did. I didn't expect it to work this well and hence, no photos.

There are threads (including this one) talking about how tough it is to re-insert the mirror assembly back into its frame. There is a pretty strong spring pushing two pins out and that pressure is what keeps the mirror in place. I put the thing in a vice and squeezed the two pins together. In the "middle", there are collars as well as the spring. I pushed a plain 2mm allen key up from the bottom of the mirror and set it between the collar and the casting on the drivers' side of the mirror. 2mm is about as much as you are going to get. I then backed off the vice until the collar was pinching the key. At this point, I have the drivers' side pin almost fully retracted and the passenger side pin fully extended while an allen key hangs straight down. I twisted the assembly into place and then pulled on the key while holding the assembly in position. Despite the pressure, the key came out easily and locked it in place. Honestly, from the time I "set" the Allen key in place until it was re-installed wasn't two minutes.

I then re-clamped the wires to the control panel and plugged them into their respective sockets. You can move the control panel towards the mirror, close to the roof and pretty much parallel to it. When it was close to that piece of trim around the neck of the mirror, I snapped that trim back into the control panel.

As opposed to removal, where you have to pull down the front of the control panel before the back, you can re-install it "flat", where all posts get pushed back up that the same time. When you snap the mirror-collar-trim back into the control panel, you are left with just enough room to ensure the wires are out of the way and snap it back in place. The only thing left is the cowl that goes over the rain sensor.

Hope this helps the next mirror-thread-searcher!
I really must object to your kind, mental-health saving necro post. No one needed to read this.... Especially the suburban Chicago guy who's neighbors almost phone the police because they thought a crazy man was about to take a chain saw to his E500 wagon, spending so much time trying to "tap" the rearview mirror back into place. I cannot thank you enough for this post .... after reading his and a fair bit of vodka, I calmed down and reattached the mirror. Funny, I love the Wagon but I don't recall needed to take apart the rear view mirror to "jimmy up" the homelink buttons on my Toyota Avalon and it is a bit older.
 
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