E32 740 Blower Motor Sword FSU resister issue
Results 1 to 4 of 4
  1. #1
    In search of a bmw buddy
    Unverified Member
    Freedom8665's Avatar
    Join Date
    Jun 2017
    Location
    Brockport, New York
    Posts
    2
    Car Specs:
    Year
    1993
    Model
    740il
    Engine
    V8
    Fuel
    Gasoline 89
    Thanks
    0
    Thanked 0 Times in 0 Posts


    Donate Please click the
    image to support
    BMWForums.info
    Click Here To Contribute To Our Site

    Blower Motor Sword FSU resister issue

    I am a new owner of a 1993 BMW 740il. The symptoms I had when I first bought her was a very loud squirrel cage when run on max high for the fan setting. The blower would not work at all on any other setting other than the fan on max high. It was also giving off a faint dead mouse smell, could have just been the bearings burning or some sort of electrical smell from it running off balance. A week later, it stopped working altogether. No response at all from the blower. I did some reading about these symptoms, they seem to be pretty common, but the root issue/cause is not. It couldeither be the actual blower motor, or the squirrel cages being chipped causing an imbalance when spinning, or the FSU which is the final stage Unit, that many parts guys call it the resister. There is also discussion about a sword located near the blower motor. I am unsure as to where these parts are or how to test them. Are these parts located as part of the blower motor assembly or are they separate? Please, if anyone has some idea as to what could be going on, let me know. Regardless if it is the FSU or the squirrel cages or the actual blower motor or the sword, I still need to pull my entire dash off in order to access it and it is a time consuming job. I have read some step by step procedures on how to do this job but not for my exact vehicle. Is there anyone on here that has or has had my vehicle and/or knows about it in great detail?
    Thanks,
    -Katherine
    As a side note, my side mirrors stopped working shortly after the blower motor stopped working. The side mirrors usually adjust when shifting the vehicle in reverse. They no longer move at all. My first step to this situation wI'll be to check all the fuses. After that I am unsure.

  2. #2
    Sometimes the world is still flat, especially if you can't see as far as the horizon
    BFI God you need to get out more!
    e36coupe-328's Avatar
    Join Date
    Apr 2012
    Location
    Greater Manchester
    Posts
    5,737
    Car Specs:
    Year
    1995 / 2001
    Model
    E36 / White Elephant
    Engine
    2.8 / 3.2
    Fuel
    LPG / Liquid Gold
    Thanks
    320
    Thanked 2,218 Times in 1,748 Posts


    Start with the fuses (maybe the mirrors and motor are on the same one)
    To me it sounds like you may have 2 problems
    1) FSU defective as only the fast (direct connected) speed was working
    2) potential motor issues too

    Look for use Watty on here. One of his cars had the sword "reconditioned " cheaply
    No warranty of any kind implied or given and no liability for any loss, damage or injury, no matter how incurred accepted.

    LPG Conversion "How to" Guide, Step by Step, Picture by Picture

    Free Gas Kit* now fitted to free 328*
    *Based on ROI period exceeded

  3. #3
    Sometimes the world is still flat, especially if you can't see as far as the horizon
    BFI God you need to get out more!
    e36coupe-328's Avatar
    Join Date
    Apr 2012
    Location
    Greater Manchester
    Posts
    5,737
    Car Specs:
    Year
    1995 / 2001
    Model
    E36 / White Elephant
    Engine
    2.8 / 3.2
    Fuel
    LPG / Liquid Gold
    Thanks
    320
    Thanked 2,218 Times in 1,748 Posts


    Last edited by e36coupe-328; 19-06-2017 at 09:19.
    No warranty of any kind implied or given and no liability for any loss, damage or injury, no matter how incurred accepted.

    LPG Conversion "How to" Guide, Step by Step, Picture by Picture

    Free Gas Kit* now fitted to free 328*
    *Based on ROI period exceeded

  4. #4
    Cars talk to me...
    BFI Veteran
    rudeuk2's Avatar
    Join Date
    Jan 2013
    Location
    On the laptop somewhere.
    Posts
    2,158
    Car Specs:
    Year
    1986, 1999, 2001
    Model
    E24 635 CSi, E36 Touring, LR Discovery II
    Engine
    3.5, 1.8, 4.0
    Fuel
    The green one and lots of it!
    Thanks
    742
    Thanked 2,075 Times in 1,003 Posts


    Horrible noises and burning smell will be the motor dying. It will also be contacting on things it shouldn't be and will stick occasionally which will blow the fuse. The one speed only thing.... That's the other problem as said already.

User Tag List

Tags for this Thread

Posting Permissions

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