PeachParts Mercedes-Benz Forum - View Single Post - 124- Just one window not working

jayb79 · #10 07-18-2004, 09:17 AM

I pulled the door panel (used the search for that one)and the motor was sounding like it was trying to work.

1st- I found the 2 wires leading to the motor from the switch and jumped them direct to 12v battery. it was pulling amps and trying to work so i figured it was mechanical.

2nd-I managed to get the motor off of the regulator and it started working, so i lubed everything up and thought i was done. put the panel back on put the window down and it would not come back up.

3rd- Pull the regulator assy out. This is much easier than taking the motor off. With the window about 2 thirds of the way down remove the black clip that holds the slide in place, then take off 3 nuts at the motor and 2 bolts from the track 1 top, 1 bottom, i used an 18mm wrench to hold the window up while pulling the regulator thru the big hole at the bottom of the door.
So now i am thinking the motor is jaming up and i adjust the screw at the end of the worm gear,all works good on the bench. Thinking this is the fix i put everything back together, put the panel on and get the same problem when i put the window down it won't go back up.

4th-Now i am getting good at taking the door apart i can pull the panel off and remove the regulator in about 2 mins.(practice practice practice).This time i take the motor apart(i love the mercedes stuff everything is screwed together no rivits or crimping)everything looks good other then a rusty worm gear,so i relube everything and put it all back together. Same as above still not working.

5th- Refering to a previous post about bad wires i pull the wires from the door and sure enough all put one of them are broken. i cut out about 6 inches of wire so the splice is not were the wires broke before and it all works fine now. What a waist of a day. But i am glad i didn't have to pay to get it done.