IvanP

Hello all,

My driver side mirror folding motor gave up the ghost on 2013 s550. Hen the folding function is initiated, the housing moves a bit, but does not fold fully. I can hear the motor trying to move. I looked at the WIS and found the instruction on how to remove the motor. WIS labels it as M21/1m3, but I cannot find corresponding part number for this motor. Do any of you know what part number this is?
Thank you in advance for any help. Greatly appreciate it.
Regards,
Ivan

dlafever

Not a part number, but likely a fix for your issue. These mirrors can be disassembled and cleaned to restore the folding function, provided the motor and parts are still good.

Check out this contribution from crahm;

https://mbworld.org/forums/s-class-w...very-time.html

lkchris

https://www.mbdirectparts.com/auto-p...e-mirrors-scat

kenstudios

Before you go through all this, try a very simple solution. Press the close button and as the mirror starts to close, push it closed by hand until it closes. Then try to push the button again to open it. It worked for me with no more problems

Rimola

I just went into vehicle settings and turned off the option. Problem solved.

dlafever

Welll I might call that a 'workaround'.

IvanP

Hello All,

Here is an update on this issue. The folding mechanism is definitely NOT made to be disassembled and repaired. I was able to take the mirror off the car, remove the glass, mirror motor, cover, etc., but to get to the folding mechanism, I had to cut off the sleeve that holds the spring and the folding motor in place. I did not take any photos, but it appears that the sleeve was expanded by flaring tool of sort to hod the spring in place. No way to disassemble without cutting. As expected, the motor was dead and probably could be had for few bucks on Amazon.

I ended up buying the mirror base from MB (around $200), which includes the entire folding mechanism, positioning motor, wire harness, and all parts needed to mount the base onto the door panel. Comes in pieces and requires assembly. WIS sheet was of great help. At least this kit is designed so it is possible to disassemble it without cutting the parts. Simple retaining ring holds the spring in place. Not a difficult job, but it took me awhile to get the old base out.

Regards,
Ivan

dlafever

Thanks for the update, however I think the difference is the early (up to 2009) and late (2010+) versions of the mirror base. They are two entirely different P/Ns 2218101176 early and 2218100776 late, with additional features available on the 2010+ models. The only reason I'm thinking it is possible to disassemble and reassemble the early mirror is because crahm did so and posted the pics in the thread I referenced above. For $200 though, might not be worth the trouble since lubrication may not be the problem.

Thanks Ivan!

IvanP

Yes, the pre-facelift models had different mechanism that allowed for relatively easy disassembly and repair of the folding mechanism. I found WIS sheet for that. No dice on 2013 model, though. As you said, $200 is not that big of a deal. It is just PITA to disassemble the original factory part without damaging the painted plastic door panel. Once you get the old motor out, assembly is a breeze.
Regards,
Ivan

Bklyn

I love that solution.