The right regulator arm in the one that is slightly bent inwards.

Just use one or two pairs of Vise-Grips.

- Eric

http://img.tapatalk.com/d/14/06/16/aqu2uteg.jpg

I found this c channel thing in the bottom of my door. The interior of the channel is lined with felt. What is it?

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Looks like one of the window channels - see how long it is and whether it fits into one of the window tracks.

- Eric

Hrm. It fits the description of the rubber guides. I guess it wouldn't hurt to fully complete this DIY even though my windows operate fine. It would be ironic if one of my windows break after I did this DIY though.

Plastic Posts to fix Window
 

Hello guys
i just checked and the linked i have for ebay is an old one,
here is the new link to the plastic posts that are so tedious to find. make sure that when u make a purchase, you specify what side door you need so we can send you the correct one.

thanks and good luck to everyone on your Fix

EBAY LINK

project..http://www.ebay.com/itm/318ti-Door-P...11419b&vxp=mtr

I've noticed in the forward vertical guide that D metal piece facing furthest away from you so on the interior of the door, is not as long as the piece that is on the that is closest to you. I feel that this is causing issues with the glass staying in the guy that is when I do the slam door test pops out pretty easily or it pops out when I check it for up and down movement with the regulator. Has anybody else experienced this?

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Added Info on this DIY
 

Aloha Guys,
I know it's an older thread... This is a very helpful DIY in determining what was the problem with my window, but I wanted to add something that may help others...

I bought a new regulator/ sliders and the window kept popping out from the front towards the outside door panel. After countless times of twisting the front track, trying to get the proper alignment, I noticed the window in the track was sliding front-to-back extensively (about an inch). There's a rectangular access port at the bottom of the front guide rail and I used the large piece of wood or the handle of a large screwdriver and pushed the rail back to minimize the 1" gap previously encountered. DO THIS WITH THE WINDOW IN THE FULL DOWN POSITION. I had also noticed that the bottom of the front rail was flaired wider than the top of the rail , so I squeezed it togther with a pliers (with the window removed). There wil be some gap remaining, front to back, but not as large as was previously there. Tried it up and down several times and slammed the door hard multiple times with the window down... So far... So good! I hope this will help others...

Ah, cool. I will try this adjustment when the front $&@&#% drivers window pops out again the same way. Thank you!


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As always great job Jess

What is this? Where & how do I install it???
 

I think I found the same part after my Window Failed I have no idea What this is? or how & where to install it???
I'm pretty sure It's Important & essential for proper window operation.
Anyone??? Thank You

https://drive.google.com/file/d/1WeA...ew?usp=sharing

https://drive.google.com/file/d/1wPe...ew?usp=sharing

That is number 13 that slides inside of number 12 on the diagram here: https://www.realoem.com/bmw/enUS/sho...diagId=51_2055

You are awesome! ... Thank You 740isport!!!

I have a feeling it's going to be a PITA to reinstall correctly :confused:
Should the window be all the way UP, DOWN or removed completely???
How far up or down to the edge of the metal should the guide be installed?
Sorry for all the questions? Total Rookie LOL

Not a problem happy to help. I've installed it in all three ways and to me, the easiest way was with the glass removed completely. But you can try any way possible. It would install as far up as possible so when the glass slides down it automatically goes into this channel. Hope this helps.

Wow ... Thank you so much for your Advise & Help! Really do appreciate it!