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Old 11-01-2007, 08:29 PM
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Join Date: Sep 2007
Posts: 13

I recently purchased a 1981 300 sd. Thanks to this forum I am able to get the car back in great running shape. The sunroof works if you help it along with your other hand. It is as though something needs lube. Any ideas on what to do? Without helping it out, it will just hum. [ try to work]

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Old 11-01-2007, 08:54 PM
Boise_Wannabee's Avatar
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Join Date: Oct 2007
Posts: 26
Thumbs up same issue here

looking forward to the solution
1978 Mercedes Benz 300D. Butter color, named "Larry." (Bought out of a barn in Caldwell, ID with a vintage "Larry Craig" sticker on it.) 229,000 miles, dark brown interior, need map pockets!

1995 Suburban diesel, frybrid kit. 20k on veg, runs great.

Future mods, Frybrid WVO.
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Old 11-01-2007, 10:08 PM
babymog's Avatar
Loose Cannon - No Balls
Join Date: Jan 2006
Location: Northeast Indiana
Posts: 10,767
Cable and/or slide lube gummy is my guess. The clutch on the drive is likely slipping and the motor running/humming. I've not heard of a clutch adjustment loosening, but I guess it's possible.

Gone to the dark side

- Jeff
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Old 11-01-2007, 11:25 PM
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Join Date: Sep 2007
Posts: 13
I have done a search and see that the cable could need cleaning. How do I take out the sunroof? Does the cable come out from the top? Thanks

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