handle twists good to unlock/release/whatever it does, and it slides back and forth well. but when i shut it and go to lock/push it up/seal it i have to exert tremendous torque on the handle before it eventually pops loudly and turns a complete rotation. I have read somewhere here that you have to pull down on the handle to actuate the movement but mine doesnt seem to want to pull down ?? what needs lube, ive looked around up there but dont see clearly whats going on when i turn the handle. I need to have my sun-roof open and the problem is getting worse over time, its so bad now that i dont even want to open it.

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1996 E300 110,000
1985 300TD 212,000
1980 300D 238,000

It sounds like the closing arms need to be lubricated. They get dirty after a while and cause restriction between the arms and the spring clips. The best way is to remove the s/r, lay it flat w/actuators up and clean all the spring clips & sliding surfaces. Then lube w/a light oil such as 3in1. Graphite is much too messy for this and silicone is too thin. Remember, this stuff hangs upside down. As long as the s/r is out, clean & lube the entire actuator the same way. Then clean the feet and sliding rails, and lube the rails w/silicone spray. Once everythng is clean, you may have to readjust the closing arms if you are able to move the s/r from a locked open position, so check it at various positions.

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Don't Chrome them; polish them

Have someone actuate the handle while you watch from above. It sounds like the back of the SR is hanging up on the roof of the car (not sliding far enough forward). If this is the case, it may be maladjusted.

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For Sale: 1982 MB 300TD
1995 Chevrolet Suburban 6.5TD

Sold: 1980 IH Scout Traveler- Nissan SD33T Diesel

I have a similar problem. Mine will slide all the way forward, but when I twist the handle to lock it into place, it pulls the sunroof back about a quarter of an inch. I recently took it out to replace the seals and have had this problem since I put it back together.

I'm not sure how to adjust it. The service manual I have from MBUSA doesn't really indicate how this adjusting is to be done.

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" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

there is a hard rubber roller on each side that pushes against an triangular piece towards the outside of the track. The rollers push against that when you turn the handle forcing the SR forward and up. Check the rollers, they tend to crack, and wear flat spots. Otherwise, if you take the SR out you will find that there is an adjustment on the slides which move front to back. Also, I believe the length of each arm can be adjusted to make sure it is centered in the hole.
bb

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For Sale: 1982 MB 300TD
1995 Chevrolet Suburban 6.5TD

Sold: 1980 IH Scout Traveler- Nissan SD33T Diesel

Thanks. I'll look for those this weekend when I take the roof out again for another stab at the problem on mine.

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles