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-   -   Power Window Fail (https://sprinter-source.com/forum/showthread.php?t=59906)

dun_roamin 10-02-2017 03:36 PM

Power Window Fail

My driver side power window fell down into the door as I was opening/closing it. I removed the door panel and found that the control arm that moves it up and down had fallen off the rail attached to the bottom of the window. This was due to a plastic part that holds the control arm having broken.

Does anyone know where I can get that small white plastic part? People talk about using shower door rollers from home depot, but ideally I'd like to get the original part.


OldWest 10-02-2017 04:55 PM

Re: Power Window Fail

The Search function, although cumbersome and not always useful, shows several useful threads with various options for repair.


Here are the more recent threads from that search, but you may also want to look at the older threads as well.




1. Plastic part is apparently not available except as part of motor and rail assembly. Thus, the various cheaper shower roller or bolt/washers fixes.

2. A manual regulator designed without a plastic part may be cheaper but rivets need to be drilled out to be used. Fellow Westy owner Autocamp figured this out.

3. A power assembly replacement or a manual assembly replacement can be found at Europarts-Sd.com for much cheaper than Mercedes/Dodge.

4. Fellow Westy owner Autocamp posted details on his blog.



Please follow-up and post whatever you find and do. Thanks.

onemanvan 10-02-2017 06:56 PM

Re: Power Window Fail
4 Attachment(s)
I had the same problem - my solution probably looks a bit kludgey but it's been working fine for two years now. Less expensive than purchasing a new window regulator assembly. Some assembly required:-)

large nylon spacer 5/8" OD 1/8" thickness
small nylon spacer 3/8" OD 1/4" thickness

OldWest 10-02-2017 11:43 PM

Re: Power Window Fail
Part numbers?

A. Track Rollers?

There are various things which look they might work. Maybe things called "cam followers and track rollers," but no one has apparently posted an exact part.


From the various forum threads/posts, probably looking for:

Outer Diameter:

0.625" or 5/8" (about 16mm)

Inner Diameter:


Thickness of Wheel:


Attachment Bolt:

8-32 bolt, 1/2" long
(8 means diameter, 32 means threads)

B. Carriage Bolts or Mushroom Head Bolts

Posters have suggested using a carriage bolt. Autocamp suggested something similar. A mushroom head bolt may be a better fit as not as angular?


Wasaabi 10-06-2017 02:25 PM

Re: Power Window Fail
I used the $4 shower door roller from Home Depot trick. I had to shave the roller plastic down to almost the metal. I tried various parts hoping to get to onemanvan's solution, but couldn't find the parts locally while rushing before our last trip. The shower door roller works well, although with all the plastic shaved off I don't have high confidence in longevity. At least I know how to fix it if it fails again.

Maybe before our big winter trip I will remember to stock up on the parts mentioned above just in case. Since this problem happens with no warning, and the plastic piece that breaks is now at a certain weakness with age on our Westies, keeping a set of the suggested parts on hand as spares is a good idea. FYI for those whose window falls into the door and need an emergency fix (eg, at night in cold rain), you can take the door panel off to retrieve the glass in about 5 minutes, then use tape over the frame to keep the window up in the track while awaiting the fix.

Robert Foster 10-06-2017 04:52 PM

Re: Power Window Fail
I made a simple single piece out of delrin plastic that has worked beautifully for two years. I actually made two of them and stuck the second one in my parts bin in case the passenger side fails. I will try to take a picture of it and post it this weekend.

OldWest 10-10-2017 12:43 AM

Re: Power Window Fail
This Arizona company repairs power windows and also makes custom replacement parts. If someone does call them and finds out if they have a replacement part (see OneManVan's post with dimensions), please post. Thanks.


SondraRose 10-16-2017 05:51 PM

Re: Power Window Fail

Originally Posted by onemanvan (Post 592151)
I had the same problem - my solution probably looks a bit kludgey but it's been working fine for two years now. Less expensive than purchasing a new window regulator assembly. Some assembly required:-)

large nylon spacer 5/8" OD 1/8" thickness
small nylon spacer 3/8" OD 1/4" thickness

Love it! Your post is just in time; our original failed after a camping trip on washboard roads.

Could you share your sources for the parts, please?

Oh, and a wave from Tucson! My parents live in Benson.

onemanvan 10-16-2017 08:15 PM

Re: Power Window Fail
I found all the parts I needed at the local Ace Hardware store in Benson!

OldWest 10-16-2017 08:34 PM

Re: Power Window Fail
A poster found a replacement part made in brass. The part looks like the rectangular plastic piece which breaks. The replacement brass piece is bolted on using the same type of bolt used by OneManVan. You will still need to cut and drillout the original rivet.



I didn't have the time to hunt down hardware and fabricate a fix for this, so I went for this overpriced but nice looking solution (still far cheaper than the dealer.) Got it on eBay, listed as "1995-2006 DODGE MERCEDES Sprinter window crank motor lift regulator repair kit", it's a brass piece manufactured in Estonia, post needs to be cut off and punched out of the arm, kit includes a replacement bolt and special nut. I hope it arrives soon. $34 with shipping.

[End Quote.]

Original link above has photos. Ebay link is below:


1995-2006 DODGE MERCEDES Sprinter window crank motor lift regulator repair kit
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