sunroof opens,,,,but then can't close (!)

Discussion in 'Interior' started by Stringer, Oct 10, 2012.

  1. Stringer

    Stringer Active Member

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    Hi All
    It's starting to rain out here in Lebanon and my flippin sunroof won't close. it's like there is no motor whatsoever to close it and even physically i cant clunk it entirely shut.
    Can anyone help? Is there a trick?
    thanks
    m in beirut
     
  2. carat 3.6

    carat 3.6 MB Enthusiast

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    Have you tried to close it using the emergency wider in the rear of the car? When you press the button to close it can you hear the relay click, or the motor try to run?
     
  3. OP
    OP
    Stringer

    Stringer Active Member

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    nope, you dont hear anything. Where exactly is the emergency winder?
    thanks
    m in beirut
     
  4. GP801

    GP801 MB Enthusiast

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    Its a white knob on top of the sunroof motor. Usually found just above/behind one of the rear wheel arches in the boot.
     
  5. donubenz

    donubenz Active Member

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    You usually have a tubular spanner in the tool kit that will go into the unit thorough a hole in the boot liner on the left hand side when viewed from the rear.
     
  6. OP
    OP
    Stringer

    Stringer Active Member

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    any idea what size the tube spanner is as i only have one in my kit and that' s for the plugs
     
  7. donubenz

    donubenz Active Member

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    Last edited: Oct 11, 2012
  8. OP
    OP
    Stringer

    Stringer Active Member

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    well, i couldn't even find the hole or slot on the left side or anywhere in fact. Are you sure you are referring to a 1987 car? All i saw on the left side behind the rear wheel arch on the left, which was an oblong flap. Please tell me where i'm going wrong as clearly i',m not looking in the correct place.
     
  9. OP
    OP
    Stringer

    Stringer Active Member

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    i found the motor and the 'knob'! I@m guessing i have to remove the plastic knob and turn the actual nut. But which way to close the sunroof?
    thanks!
    M in Beirut
     
  10. OP
    OP
    Stringer

    Stringer Active Member

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    sunroof whines, but wont close

    Hi Carat
    When i try and push the button to close i can hear a distinctive whining noise, which i guess is a motor. But it seems like there is something restraining it. Please take a look at this picture and tell me if this is the manual wind on it...and whether it is the square-ended extension which i need to turn or the hexagonal, larger nut beneath it.
    thanks again
    m in beirut

    ps. And by the way, where is the relay?
     

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    Last edited: Oct 13, 2012
  11. carat 3.6

    carat 3.6 MB Enthusiast

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    Hi Martin,

    If the sunroof opened normaly but now wont close, I would suspect the relay is faulty. You could try pressing the button to lift the sunroof instead of closing it, that worked on mine.

    Looking at your picture, the sunroof relay is in the red circle, attached to the motor. The manual winder should be about where the blue circle is, it is a white knob which you pull towards you to engage. Be gentle with it as they can be very tight.

    [​IMG]






    PS: that was an intresting title on your pm message.:)
     
  12. OP
    OP
    Stringer

    Stringer Active Member

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    just brilliant. You've made my sunday. It was Hancock btw who used to tell people on his ham radio that he would send them a crate of guiness and tray of bread pudding...
    thanks S

    M
     
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  13. OP
    OP
    Stringer

    Stringer Active Member

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    Update*********

    I have studied the motor at some length and pulled out the relay. Opened it up and it looked pretty clean in side, no signs of dry solder joints or burnt windings. But i also tried to manually turn the motor and it's here where my suspicions are raised. I can't do it. After pulling the white knob out, it won't engage with the cog inside, but slips. Is this a tell-tale sign of the problem? The other thing that worries me is that there is a metal pipe hanging down from the motor, which looks like a hydraulic line, which has been flattened at the end. If it helps i can hear whirring noises when either the 'return' button is pushed forward or up.

    Is the system one which is a sealed hydraulic one?

    m in beirut
     
  14. carat 3.6

    carat 3.6 MB Enthusiast

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    The system isnt hydraulic just mechanical, it works like a giant electric arial. It has a toothed cable which the motor drives against to move the sunroof, the metal pipe you can see hanging down is just the cover for the cable.

    I'm wondering if the relay is faulty, I had a similar problem once, where no matter which way the control button was pressed it just wanted to close the roof.

    I'll have a look at a spare motor later, you may be able to give it a direct feed from the battery to close the roof.
     
  15. OP
    OP
    Stringer

    Stringer Active Member

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    i was wondering whether the cog was slipping on the command to close but engaging on the open one....
    i feel bad about your 300E RIP....uk weather an all...
     
  16. carat 3.6

    carat 3.6 MB Enthusiast

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    The weather had nothing to do with it, that was pure abuse!

    Take one well worn 200k mile 300e, convert it to manual using the roughest gearbox in the world, weld up the diff, then take it to the redline whilst going sideways out of most junctions and roundabouts. It put up with that for 4 years before the inevitable happened...

    [​IMG]

    Poor old thing, rest in peace. :(
     
  17. carat 3.6

    carat 3.6 MB Enthusiast

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    Can you get someone to press the button while you check if it is slipping?

    If the motor is not running, or running in the wrong direction, you can power it directly.

    Remove the relay from it's plug, then open the plug up. IIRC it is 1 black wire and 1 green wire going to the motor, try giving these power and earth from a battery. If it goes the wrong way just swap the connections round.
     
  18. OP
    OP
    Stringer

    Stringer Active Member

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    [/QUOTE]
    Remove the relay from it's plug, then open the plug up. IIRC it is 1 black wire and 1 green wire going to the motor, try giving these power and earth from a battery. If it goes the wrong way just swap the connections round.[/QUOTE]

    press #1 for english, mate? IIRC...what the flipping nora are you going on about?
     
  19. TimS

    TimS New Member

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    "IIRC" = if I recall correctly
     
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  20. carat 3.6

    carat 3.6 MB Enthusiast

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    Welcome to the forum TimS.:)
     

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