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97 E420
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23 Posts
Discussion Starter · #1 ·
Is the sunroof supposed to manually crank easy, medium, or difficult ? I used a allen key which has about a 4" handle, and it was medium to difficult to do. Just wandering if it was supposed to be easy, as I having opening issues with it.
Thanks
 

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1994 E320 Wagon,1999 E320 Wagon,2000 E 320 Wagon, MGB Track/Rally, ,1988 300E ,more....
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6,019 Posts
Is it

operational with the switch?
Have you cleaned and lubricated the tracks and cables?
have you checked the fuse and the pse?
Have you adjusted the roof?
What is the problem,in other words:)
:bowdown:
 

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97 E420
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23 Posts
Discussion Starter · #3 ·
It closes,pops up, and goes down by switch. Won't open by switch.
I have cleaned and lubed tracks.
The fuse under rear seat is good, I don't know what the PSE is so I have not checked it.
I have adjusted the roof.
It did sync one time, then after I opened and closed it twice, it quit opening again and sync doesn't help. Is it supposed to be easy to crank open ? Thanks
 

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Retired MB owner
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87 Posts
If it won't slide open and fuses look good and switch works. I suggest taking off the glass before something really goes wrong! I really messed up mine thinking if it opens, if I help it open, if it cranks open maybe it would fix itself. Well, just like common sense tells you, nothing fixes itself and it didn't and I played with it enough that a cable snapped and it was stuck open, the drip rail arm broke and if the cable broke you won't crank it closed! I would study the sunroof video and take the glass off and see what you see. I just rebuilt mine after my disaster! New R/L cables($25 per on ebay) new R/L sliders($20 per from stealer), new drip rail ($100 from stealer), new baffle( $30 from stealer) 3 sunroof visor sliders ($9 per :eek:). I bought other stuff from the dealer so I asked him to include a teaspoon of grease which is more than enough for the job.

I had to replace the slider rail because the slider was out of the track and crimped the rail closed enough that it couldn't pass through. I don't wish that on anyone! The whole headliner had to come down just to get 1 torx screw in the back of the rail!!

Anyway, after researching, junkyarding, part buying, taking off the glass like 5 times and studying the parts I feel like I'm a half-witted expert.

from start to finish yesterday the R/L slider, baffle and drip rail R&R took 2 of us 45 min. Add the R/L cables which I did earlier add 10min. It's not that bad!!!

Step 1
 

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97 E420
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23 Posts
Discussion Starter · #5 ·
From all that you probably are a "Sliding Roof Expert". I just reset the motor to glass position again, per step 6 of the Videos. Thinking I might have did something wrong the first time. No help, but I did notice this during the process. With motor dangling I ran it in all positions of the switch, and the open position will not turn the motor, the relays attached to the motor do not engage in switch slide open position, but relays do work in all other positions. This tells me the motor and relays are good. So I use the key in the door to open all windows and roof, windows open but roof did not. I then crank roof open and use key in door to close it. I then disconnect the switch and use key to open all windows and roof, windows open but again no roof. So I crank the roof open, and use key to close the window and roof, they all close. This tells me that the switch is not used when key/remote is used to open and close the windows/roof. So that should eliminate the switch as the problem. Per the attached diagram, the roof gets it's open signal from N10. I don't think N10 is sending the signal, is there a way to reset it ?
I appreciate the help.
 

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Retired MB owner
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87 Posts
does ur sync like the video?

My 98 e-430 doesn't sync like stated in the video but like the user manual says(what a concept). I simply, from the closed position, tilt the sunroof and hold the tilt position until it clicks a second or 2 later. That's the whole sync process. When I tryed like the video stated, my motor would only work in 2 of the 4 positions.
 
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