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#1
08-20-2008, 03:58 PM
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1994 E420 Sunroof problem
Our sunroof barely moves. The motor seems to be weak and the sunroof jams when popping up or down into position. It is slow when sliding open and closed. Afraid I'm going to blow the motor. Do I need to remove the cable and lubricate it?
My wife just called me saying there was a loud screech coming from behind the back seat (sunroof motor). No more noise for now, but the sunroof is slower than ever. We just pop it up when in the sun. Now it needs a push to pop open and to close. I need to fix this one myself to save money. Ideas? What was the noise? 
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#2
08-20-2008, 04:47 PM
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Clean and lube the S'Roof rails.
Noises from S'Roof are generally coming from your Pocketbook/Wallet.
These things are very easy to BREAK. 'Force it or parts of it at your peril ! GSXR's sunroof portion of his website: http://www.w124performance.com/images/W124_sunroof/ PD's user friendly Service manual: http://www.pauldrayton.com/uploadfiles/merc/Service/W124/Index/119index.html Sunroof portion: http://www.pauldrayton.com/uploadfiles/merc/Service/W124/Index/Groups/77Roofs.html Mercedes Benz Club of Russia's Illustrated Electronic Parts Catalog: http://www.detali.ru/cat/oem_mb1.asp?TP=1&F=124034&VIN= (Updated whenever MB supersedes parts numbers) The sliders in the picture below are Felt covered Rubber.They slide on Stain-Less Steel Rails.When the Lube (Glietepaste,a special lubricant that DOES NOT attract dust or dirt.) wears off: 1. The Sliders felt coverings Go. 2. The motor clutch has to work harder. 3. Something Expensive to R+R breaks(expensive because the labor is @ $100.00 p. hr.).
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'84 300SD sold 124.128 Last edited by compress ignite; 08-20-2008 at 05:03 PM.
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#4
08-20-2008, 11:13 PM
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Other Information
Yeeeeees!
Top of the page SEARCH button then ADVANCED SEARCH,enter Sunroof (or ritual suicide caused by attempted sunroof repairs) in the block on the left. It's a complex little monster,But if you take your time and don't get pressed for time...It'll be sliding like a Greased Pig by Labor Day. Call The Classic Center in California in the A.M. and order the 2 disc CD set of the Factory Service Manual. 1(800) 222-0100 will give you their number. (I don't know what's wrong with the links they are not mine.) And ,Yes you have lots of reading to complete. Another hint: Do Not attempt to remove the fasteners that secure the actual Sunroof itself UNTIL you understand EVERYTHING about it's "Adjustment" inside the framework...That "Adjustment" correction at the Stealer is what causes you to take out 2nd and 3rd mortgages. http://www.detali.ru/cat/oem_mb1.asp?TP=1&F=124034&M=119.975&GA=722.354&CT=F&Cat=44S&SID=78
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'84 300SD sold 124.128 Last edited by compress ignite; 08-20-2008 at 11:31 PM.
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