Passenger side window regulator broke
Right now, the front passenger window is completely down and won't go up. After doing some online Googling, it looks like the window regulator might be the issue.
Has anyone dealt with this before and can share some DIY tips?
I’ve seen replacement parts online. Some are just the regulator, while others come with the regulator already attached to the panel.
I recently replaced the driver-side door handle, but I know this repair is more involved, especially since it requires drilling out rivets and other steps.




Take off the door panel and have a look.
Do you have a scanner to check for faults? My scanner has functions to test the switches to see where the issue is.
Can always look thru the manual for instructions: https://charm.li/Mercedes%20Benz/201...d%20Diagnosis/
Interestingly I also had my passenger side break. Strange because the drivers side is still going and that gets used way more often.
I am thinking of getting the regulator w/panel. There are some after market choices but I think I'll end up getting the Aisin from RockAuto. I was searching for rivet sizes, so thanks @cvx5832





Only time I ever worked on a car window was over 25yrs ago, had a Pontiac grand Am and one of the plastic clips that clamps onto the window glass had cracked apart.
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I got the panel with the regulator.
Getting the revit from HF as suggested.
One question, the gass is down as I mentioned, so after I remove the motor, do I manually somehow pull the glass up and hold it there with suction cups or masking tape? That part I'm not clear, how to work that out. And once I put the new panel back, do I just let the glass slide down? How does the glass attach to the regulator?
I'm sure as I start I will figure it out but knowledge is power ☺️
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https://www.pelicanparts.com/techart...eplacement.htm
Last edited by cvx5832; Jul 15, 2025 at 05:15 PM.
This is the front passenger door panel.
The glass is all the way up. I removed the 2 screws in the plastic clips that holds the glass.
Any help is appreciated.
Last edited by meazz1; Jul 21, 2025 at 10:08 AM.
Follow the Pelican Parts guide and see if everything is good. That's the guide I used.
I realized I missed one rivet that holds the plastic piece behind the door handle. Is that rivet essential, or can I get by without it? I’m not exactly sure what that plastic piece is for.
The group of three has black plastic tabs, I'm thinking of using push pins of some sort.
But I'm not sure if I don't secure them what might be the consequences.

I put everything back together and I’m happy with how it turned out.
The four rivets had me thinking at first as I had already riveted the panel, but I ended up using rivets along with two plastic push clips.
Here’s the final photo.






