Home | Contact Us | FAQ | Search & Site Map | Link to Us
Sign In | Join | Other 45 Sites in Network
HomeAnnouncements
Discussion Groups
By Brand
BMWChevroletDodgeFordGMHondaLexusMercedes-BenzNissanPeugeotToyotaVolkswagenOther Brands
By Topic
4x4 CarsRVsDrivingMaintenance & RepairCar AudioCollectible Cars
Country Specific
Australian ForumsUK Forums
ArticlesAuto InsuranceBuyingCars & TechnologyMaintenanceMiscellaneousSafety
DMV Resources
Related Topics
MotorcyclesBoatsMore Topics ...

Car Forum / Mercedes-Benz Cars / March 2006

Tip: Looking for answers? Try searching our database.

Electric Window Woes

Thread view: 
Enable EMail Alerts  Start New Thread
Thread rating: 
avalondarkside@gmail.com - 15 Mar 2006 21:56 GMT
Car: '81 300DT

Problem: The rear left electric window won't roll up. It'll roll
down just fine, then it's stuck. Same problem whether from the door
switch or the counsel switch. Problem came on suddenly after I did a CV
R&R.

What I've done: I removed the window motor. On the bench it works
perfectly-up and down. I reinstalled it and swapped out the relays,
swapped switches with a working window. Still doesn't roll up. Wiring
looks fine. (I roll it up with my battery charger across the electrical
pins. That works perfectly which makes me think the problem is outside
the door)

Next: Start chasing the circuit and see where the power stops.

What I'm hoping for: Someone to say, "Oh, yeah. I dealt with that.
It's this..."

Any suggestions appreciated. Thanks.
Richard Sexton - 16 Mar 2006 04:38 GMT
>pins. That works perfectly which makes me think the problem is outside
>the door)

Have you installed just the window and see if it moves freely
up and down? It could be binding mechcnically. I would have tested
for +12 at the motor with the switch in both up and down positions.

Signature

  Need Mercedes parts?   http://parts.mbz.org
Richard Sexton       | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net

avalondarkside@gmail.com - 16 Mar 2006 05:41 GMT
Thanks for the response. Since it goes up nicely offa my charger, i'm
guessing the mechanical is fine.
Richard Sexton - 16 Mar 2006 07:23 GMT
>Thanks for the response. Since it goes up nicely offa my charger, i'm
>guessing the mechanical is fine.

Reverse the wires to the switch, see if up is now down and down is
now up.

I'm *guessing* bad ground someplace. One handy trick is to put a test probe
on a long wire to the 've terminal of the battery and check grounds everyplace.

Signature

  Need Mercedes parts?   http://parts.mbz.org
Richard Sexton       | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net
633CSi 250SE/C 300SD | http://aquaria.net http://killi.net

dratwal@aol.com - 16 Mar 2006 23:15 GMT
> try opening and closing the door while the switch is depressed ,they used to suffer from broken wiring loom in the b post (piller between both front and rear doors) caused by door bending loom back and forth .If window rools up when door is moved might be your answer.
 
Sign In
Join
My Latest Posts
My Monitored Threads
My Blog
My Photo Gallery
My Profile
My Homepage

Start New Thread
Enable EMail Alerts
Rate this Thread



©2008 Advenet LLC   Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.