GO FISHING, use SLABSAUCE Fishing Attractant
Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: windows wont roll up without help

  1. #1
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default windows wont roll up without help

    Just does the infamous thump thump thump unless I help it. Isn't this some gear that gets worn? Saw the round gear on ebay but they want $25 each. Didn't find anything in search or archives. Don't want to pull it apart until I have a better idea and order parts.

    TIA
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  2. #2
    Join Date
    May 2004
    Location
    Japan
    Posts
    9,249

    Default

    All windows? Or only front or rear? I cannot believe that all window gears are suddenly broken.
    Did you check all fuses related to this, also under the rear seat? That is controlled by the GM under rear seat = ZKE = central chassis electronics.

    The GM has an internal protection system for overload.

    Window lifter and SHD=electric sunroof: There are priorities as shown in the technical training manual of the ZKE=central chassis electronics. The relay switches off when
    - longer than 60 seconds 36A are recorded
    -or if longer than 0,3 seconds there is between 36 and 60A recorded
    -or (overloading) - if longer than 0,1 seconds more than 60A flows (short-circuit)
    In order to protect the load current circles TSH/ZV/ZS/FH/SHD safely against overload, additionally to the 30A protection an electronic (reversible) current protection is installed in the GM and that is based on the voltage drop on the RM, and depending upon voltage drop (current threshold) the safety relay interrupts the load current. The switching off values of the 30A protection are not reached thereby (these became only then to melt, if a defect at the electronic protection is present). The response threshold of this electronic protection is in such a way put that always before overload of the attached controls one switches off automatically. Automatic restarting takes place after 60 seconds!!!!
    However then only if these consumers were switched off and/or no short-circuit is present. Automatic restarting can take place 6 x with switched on Kl./terminal 15. This barrier waived by switching the Kl off. 15. In order not to reach the minimum trigger level when simultaneous switching on of several power consumers, only 2 can be used simultaneously ith the FH/electric window switches. If several buttons are operated at the same time, then only the two first switched ones are implemented. If the overload limit should be already exceeded with 2 switched on FH/window switches, then one FH/window switch is switched off. The FH/window switches for front doors have priority.


    Here is the ZKE, unfortunately I only have it it German, but the drawings will help
    http://www.e32-schrauber.de/bmw/s-zke.htm
    function diagram FH = Fensterheber function diagram FH = Fensterheber = window lifter
    http://www.e32-schrauber.de/bmw/daten/zke/bild16.jpg
    http://www.e32-schrauber.de/bmw/daten/zke/bild11.jpg
    there is also a window limit switch, that is described here

    retype it and then use google translate
    http://www.e32-schrauber.de/bmw/daten/zke/bild13.jpg

  3. #3
    Join Date
    May 2005
    Location
    central coast nsw au
    Posts
    1,221

    Default

    http://www.ebay.com.au/itm/BMW-e34-e...item4611ce1ef8

    I had a similar problem, these clips fixed it. basically the grease on the rails dries and the clips grab and break not allowing the smooth transition of the window up and down. 5 minutes to fix. maybe same with yours

  4. #4
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default

    Thanks guys:

    Matty, I ordered 8 of them for 11.98 usd Can't find the main center one though, seems unavailable so far.

    Erich, It is a mechanical problem on the rear windows, one side is worse than the other. I will clean and install new sliders but think there might be something worn (a gear) that I should replace.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  5. #5
    Join Date
    Jan 2004
    Location
    Apex, NC
    Posts
    471

    Default

    Here: My Post. Link to the sound it makes when the gear gets stripped. A lot easier to replace the motor than just the gear I believe.
    Scott
    '93 525iT 245k miles (sold, but not forgotten)
    '11 TSX Sport Wagon
    '00 328i
    '78 MGB
    '08 Saab Aero


  6. #6
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default

    Thanks for finding that!

    I will take my motor apart when I get the new sliders and check the gear and figure out what to do from there: http://www.ebay.com/itm/Electronic-W...item20dcee698d

    I see what I have been writing is wrong. I have been referring to the regulator which is the scissor piece instead of the motor. I have a motor/gear issue thing that might be okay with the new sliders not a regulator issue.

    Doesn't lithium grease dry out over time? What's the best to use on the sliders?

    Here is what mine sounds like:

    Last edited by 632 Regal; 01-10-2014 at 01:42 PM.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  7. #7
    Join Date
    May 2004
    Location
    Japan
    Posts
    9,249

    Default

    Not sure what is the best for the sliders in the bottom rail of the scissors. I cleaned that rail completely from old hardened grease, put in the new white plastic sliders and then used motorbike chain grease/lube, that as per the advertisement:
    Reduces friction and wear
    Decreases power losses and protects from corrosion
    Will not fling-off or attract dirt, sand or grit

    Works on my car

  8. #8
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default

    Quote Originally Posted by shogun View Post
    Not sure what is the best for the sliders in the bottom rail of the scissors. I cleaned that rail completely from old hardened grease, put in the new white plastic sliders and then used motorbike chain grease/lube, that as per the advertisement:
    Reduces friction and wear
    Decreases power losses and protects from corrosion
    Will not fling-off or attract dirt, sand or grit

    Works on my car
    We have cold in winter. best thing is clean them up..Any experienca with the synthetic paste? I really am looking for something that will easily last 100 years. I just been outta here so long I missed it. LOL
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  9. #9
    Join Date
    Dec 2004
    Location
    Sydney, Australia
    Posts
    4,374

    Default

    Main thing is to seal the door to prevent dirt being drawn through the door card as part of driving turbulence. That reduces contamination of the grease- but certainly not for 100 yrs! Not sure that something like common Lithium Molybdenum grease or the like it the best thing- the nylon may not like it... but who knows??

    Join the Aussie
    540i LE yahoo forum

    08/88 535i e34 M30+miller MAF, 'stiens, tints & teeth!

  10. #10
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default

    I Just don't want to use some grease that dries up in a few years contributing to this failure. I did use lithium in the 94 and never again had a problem. I will check how that grease has aged since I did it in circa 2005ish . Then again if it lasted this long without problems it is definitely being considered. I still have a tub of that that I purchased for this exact use. I must have checked it out back then.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

Page 1 of 2 12 LastLast

Similar Threads

  1. Roll bars
    By healtoeit in forum 5 Series BMW
    Replies: 19
    Last Post: 05-06-2008, 09:25 PM
  2. Roll
    By Boom n Zoom in forum 5 Series BMW
    Replies: 3
    Last Post: 04-15-2008, 03:27 PM
  3. 95 740i Windows Roll down by themselves
    By gjmane36 in forum 7 Series BMW
    Replies: 3
    Last Post: 10-05-2007, 05:41 PM
  4. Rear windows will not roll down
    By ber55ber55 in forum 5 Series BMW
    Replies: 2
    Last Post: 08-09-2006, 09:21 PM
  5. window wont roll down?
    By MaloventEvil in forum 5 Series BMW
    Replies: 2
    Last Post: 03-16-2005, 10:27 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •