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rear window regulator removal

Author Topic: rear window regulator removal  (Read 178 times)

sethkestenbaum

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  • W116 Enthusiast
  • Location: NY
rear window regulator removal
« on: 11 July 2020, 03:13 PM »
On my 1980 300SD (W116), I attempting to remove the rear driver side window regulator and motor to see why the window isn't working correctly. I think the regulator has bent a bit out of shape. I've removed the three bolts that attach it to the door and now have it kind of loose but have no idea how to detach it from the track.  Might anyone have a good step by step?  I see a few videos online for front windows --- which seem different.  I'm probably missing an easy step -- but am missing it none the less.

Of course, I am doing this outside and it is starting to rain.

Seth
Seth Kestenbaum
oldcarroadtrip.com
1929 Model A Ford Phaeton
1969 VW Bug Convertible
1980 300 SD Turbo Diesel getting fixed up
1980 300 SD Turbo Diesel rusty parts donor car

rumb

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  • Location: Fort Collins, Colorado
Re: rear window regulator removal
« Reply #1 on: 11 July 2020, 03:23 PM »
You want the window about 1/2 up so you can take off the bolts holding it to the bottom of the window.  Then push window up.  The @1/2 also is a good position to be able to snake the entire regulator assy out of the hole. The wires to the motor may be held down with a ziptie in the deep corner of the window.
'68 250S, '77 6.9 euro, '91 300SE, '98 SL500 '14 CLS550

sethkestenbaum

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  • Location: NY
Re: rear window regulator removal
« Reply #2 on: 11 July 2020, 05:43 PM »
The regulator is WARPED and sticking on itself.  I am assuming that this is why it keeps skipping/jamming/not closing all the way.  I've tried to bend it back, but have decided it just isn't going to work.  Tomorrow AM I guess I will be heading to visit my parts car.
Seth Kestenbaum
oldcarroadtrip.com
1929 Model A Ford Phaeton
1969 VW Bug Convertible
1980 300 SD Turbo Diesel getting fixed up
1980 300 SD Turbo Diesel rusty parts donor car

Taha

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  • Posts: 11
  • W116 Enthusiast
  • Location: Iran
Re: rear window regulator removal
« Reply #3 on: 12 July 2020, 12:27 AM »
Hi,

There is metal clip behind the regulator arm. Just try to remove it. It's easier to remove the clip before removing the bolts.

1978 280S

sethkestenbaum

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  • W116 Enthusiast
  • Location: NY
Re: rear window regulator removal
« Reply #4 on: 12 July 2020, 07:53 PM »
Thanks Everyone, I've swapped out the regulator with the one from my parts car.  The window now works, but make some noises while doing so.  The replacement part was also warped.  Oh well, at least I can now open/close the window.
Seth Kestenbaum
oldcarroadtrip.com
1929 Model A Ford Phaeton
1969 VW Bug Convertible
1980 300 SD Turbo Diesel getting fixed up
1980 300 SD Turbo Diesel rusty parts donor car

Diesel 617

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  • Posts: 231
  • Location: Illinois
Re: rear window regulator removal
« Reply #5 on: 17 July 2020, 08:41 AM »
These regulators can be straightened  and take out most of the warping. You have to be very firm but gentle and use a propane torch to soften the pot metal. Use large vise grips or a vice to straighten.
X3 1980 300SD Blown Heads, trans -Retired
1980 450SEL Parted out/Scrap
1980 450SEL to Diesel Parted Out/Scrap
1979 280SE Euro Spec Cloth Seats Sold
1979 300CD Daily Driver - Sold


Inventory of w116 Parts
https://www.ebay.com/usr/vintagepartsandstuff

daantjie

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  • Location: Vancouver, BC, Canada
Re: rear window regulator removal
« Reply #6 on: 17 July 2020, 09:31 AM »
The trick is to keep these well lubed.  If you hear noise coming from them then the end is nigh :'(
Daniel
1977 450 SEL 6.9 - Astralsilber

sethkestenbaum

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Re: rear window regulator removal
« Reply #7 on: 19 July 2020, 04:25 PM »
How hard is it to remove/put back the spring?  I was going to take the one I removed and try to remove everything and put it in a press to "flatten" things out a little.
Seth Kestenbaum
oldcarroadtrip.com
1929 Model A Ford Phaeton
1969 VW Bug Convertible
1980 300 SD Turbo Diesel getting fixed up
1980 300 SD Turbo Diesel rusty parts donor car