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  #1  
Old 04-09-2003, 11:02 PM
3 MB's and counting!
 
Join Date: Apr 2001
Location: Toronto, Canada
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Sunroof help?

I greased my sunroof with a special clear type grease thats in this pen like applicator. No matter how much I put, the roof sometimes when it reaches this one point when closing, makes a light squeak sound and I cant get rid of it.

Also if its a cool night or something, the roof closes very slowly but maybe thats due to the grease being thicker......not sure.

Anyone else have these problems?
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  #2  
Old 04-10-2003, 08:51 AM
chicago124
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Hi,

What kind of grease are you using?

Also, you have put to much on. MB recommends only a light coating of their own special grease.

Do not use anything else. I researched this for some time and the MB grease is the best.

The manual is pretty specific on this as well.

You might try Fastlane and see if they will send you a small film canister full for about 3 to 5 dollars. MB sells it but in a big tub for $50. That's about 25 lifetimes worth.

Good luck,
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  #3  
Old 04-10-2003, 09:33 AM
DTF
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Mine squeaks when closing because of the small air deflector that pops up when the roof is slid open.
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  #4  
Old 04-10-2003, 01:38 PM
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pindelski.com
 
Join Date: Jun 2001
Location: CA
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You can buy a small quantity of the MB paste....

....from George_Murphy@compuserve.com.

That's where I got mine - a lifetime's supply for a few $ in a Kodak film can.

The greasing procedure for a 1983 300SD is on my web site - Cars - Technical - Chassis. You should grease the pivots for the pop-up deflector if that squeeks also.
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  #5  
Old 04-10-2003, 03:36 PM
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Location: NW Arkansas
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Thomaspin, your website is great! Thanks for the link.
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  #6  
Old 04-10-2003, 04:18 PM
3 MB's and counting!
 
Join Date: Apr 2001
Location: Toronto, Canada
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WOW what a good site! My 126 is brown like your 83300sd except mines is the 380. Do I need to take the sunroof off to do the greasing or can it be done with it still on?
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  #7  
Old 04-10-2003, 05:20 PM
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Well...

...taking it off gets you proper access to the nylon sliders which you should clean and also gets you full access to the rails so that you can thoroughly remove all the old grease.

You can probably get away with not taking it off, but I would remove the old/wrong grease thoroughly and would take it off. Really not that hard if you follow my pix on the cable reattachment, and you will learn how the cable works for the fateful day when you have to replace it (easy, BTW, but sounds tough).

Removing the decorative/protective strips - 5 minutes
Removing the internal fabric panel - 2 minutes
Popping the cable connector - 1 minute
Removing the two retaining bolts - 2 minutes
Removing the roof - 30 seconds

Times 2 I make that 21 minutes to R&R - good return on time IMHO as a) you know it's done right, b) you reduce stress on the motor and cable because off the old goop you have cleaned out, c) you will never incur the wrath of a bunch of brilliant engineers who spent hundreds of hours designing this, and d) you get the opportunity to adjust the roof if it is not dead level with the rest of the car's top.

Finally, your car is way too pretty for a ghetto fix.
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  #8  
Old 04-10-2003, 10:45 PM
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thanks for your help Thomaspin.....I will have to do it sometime this summer as I think that the old goop is the problem!
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  #9  
Old 04-12-2003, 02:42 AM
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well tonite was a slightly cool night and the roof barely opened and closed!! During the day it was quite warm and it opened rapidly and smoothly like it should and the squeaks are gone.

Why when its cool outside, does this roof has trouble opening and when warm-hot outside, it opens quickly and smoothly?
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  #10  
Old 04-12-2003, 10:43 AM
chicago124
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Hi,

Think motor oil.

As oil gets colder, it thickens. Same with the grease you are using.

Use the MB grease.

Regards,
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  #11  
Old 04-12-2003, 01:29 PM
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Slow Sunroof

One of the most common causes of a sunroof operating slowly or not at all when it's cold & then operating somewhat normal when warm is that the grease on the cable & in the cable tube is old and full of years of Crud! No matter how much MB grease you put underneath the sunroof tracks/rails(no point putting any on top of track) the problem still exists. Kent Bergsma at: **************.com has a Sunroof Service & Repair Kit complete with MB grease, sunroof tube cleaner cable w/brush & excellent illustrated step by step repair manual. He also sells on Ebay. I am not associated with Kent in any way other than being a Very Satisfied customer. My 1985 190E Sunroof would open slowly & then not close completely. Anyone who has tried to close a stuck sunroof knows what a Pain that is! You would not believe the amount of Yuch inside the tracks & cable tube. After following his directions & pics, my sunroof now operates just like new. My 2 cents.
Richard
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