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#1
07-14-2008, 06:50 PM
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One more Window lifter question.
1983 300SD. Drivers window.
I have searched and found out how to remove the window, actuator and the motor, but my question is this. My window motor works, the gear behind it spins, the actuator arm with the white plastic slide is fine. However the teeth on the actuator arm seems to have jumped or something else is amiss. I might add that there is a nut that is loose on the back of the motor in front of the gear (in retrospect, this nut feels like it is 4 sided cam type nut, and maybe that it held the actuator arm with a nut either embedded in the arm or held with another nut??? None were found in the door floor though). I read of a worm gear in the assy. Where would that be. Any help to point me in the right direction would be appreciated. I might add that there was NO noise or thump when I lowered the window. It just would not go up. I'll attempt to pull it all apart tomorrow morning. SHEESH! one day it's the ALDA, then next the window quits. What fun Freesil is! Thanks.
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1986 Euro 500SEC "RUF" 9:1CR, "Rose" 1985 Euro 500SEC Cabriolet AMG Widebody 1982 Euro 500SEL "Blue" 2001 Texas Heeler (Aussie/Queensland X) "Sulphie", 2012 Queensland Red Heeler "Squeak" Best dogs I've ever had. Last edited by Chadahar; 07-14-2008 at 07:10 PM. 
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#2
07-14-2008, 06:55 PM
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Forgive me if this is obvious or if you've already ruled it out but are you sure the motor is getting power when you press the switch? Also it needs to have the right power (the motor's terminals need one side positive when going up; other side positive when going down).
Quote:
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-E300d '99 350k -Suburban '93 220k -TDI Jetta '03 350k Sold -F250 '96 7.3 -Dodge Ram 12V -E320 '95 200k -E320 Wagon 1994 155k -300d Turbo '87 187k miles -E320 1994 200k -300d Turbo '84 245k (sold to Dan62) -300d Turbo '84 180k -300sd '80 300k -7.3 Powerstroke Diesel 15P Van 500k+ miles -190d '89 Non Turbo 2.5 5cyl 240k (my first MB) Tom's Imports of Columbia MO Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's.
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#3
07-14-2008, 06:55 PM
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Anything here look familiar?
http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=126024&M=103.981&GA=722.319351&GM=717.431&L=765.706&CT=F&cat=568&SID=72&SGR=045&SGN=03
Or this: http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=126037_287&M=117.961%2C963&GA=722.302311&L=765.706&CT=F&cat=287&SID=72&SGR=045&SGN=03
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'84 300SD sold 124.128
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#4
07-14-2008, 06:58 PM
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I do not know how similar the SD is to the 300D. In my '85 300D, the driver's window failed because the arm the attaches to the window became separated from the gear that is part of the "transmission." The arm is attached to the gear with rivets that had sheared. I tried using repair rivets but they were too soft, lasting only a few weeks. I ended up replacing the mechanism, less the motor. Welding the arm to the gear has been done by some who have inexpensive access to that technology
Jeremy .
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 "Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970
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