2000 E46 325ci, Heater / blower not working

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  1. 2000 E46 325ci, Heater / blower not working 
    #1
    Bimmer Fan
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    Notebook's Car Details
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    Hi All

    Hope someone can help. Father in laws 325 Coupe w reg. Blower / heater doesnt work or make any noise. However, it does show up on the display as working. Any help appreciated. Have changed resistor packs on a few cars that I have had, but these have given the fan running on full speed with no control. I take it that it is something similar?

    Any help appreciated on what it could be, any pictures and cost etc.

    Thanks
     
     

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  3.  
    #2
    Super Moderator
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    dailydoggy's Car Details
    Model of Car:
    330i
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    2001
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    could be the hedgehog or fuse or brushes gone...


    hedgehog is favorite they usually pulse up and down tho for a while before total failure...
    330i sport a big chunk of berlin...

     
     

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    #3
    Bimmer Fan
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    Hedgehog? Is this seperate to the fan? - so battery through fuse - hedgehog? - fan
    This correct?
    Before I have a look on the weekend, need as much info as possible.
    Are the fuses marked up for the fan etc?
    What does the hedgehog do?

    Just rang him and he said that it wouldnt work on low speed only on high for a short while, and on this the speed went up and down, before packing in, so you might be on the right track there. We are both electricians / techs, so anything we can measure on it?
    Thanks
     
     

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    #4
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    mikesmith2's Car Details
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    If it's anything like the E39 hedgehog you will have a continuous live and an earth going in a live and an earth going to the motor and a variable voltage control wire.

    Look here it may give a wiring diagram www.spaghettitcoder.org
     
     

  7.  
    #5
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    Westfield1989's Car Details
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    I am 99% certain it is the final stage resistor causing your fan failure. Mine had the same symptoms, slight variation in fan speed a couple of times and then one morning fan not working at all. The air con display panel will show you the fan speed bars how you would expect to see them, but the final stage resistor won't send power to the blower motor accordingly.
    It's not a nice job to do, not difficult. just annoyingly awkward to get to. Have fun. Plenty of info on changing it on here.


    E46 330i SE Touring
     
     

  8.  
    #6
    Bimmer Fan
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    Notebook's Car Details
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    Quote Originally Posted by Westfield1989 View Post
    I am 99% certain it is the final stage resistor causing your fan failure. Mine had the same symptoms, slight variation in fan speed a couple of times and then one morning fan not working at all. The air con display panel will show you the fan speed bars how you would expect to see them, but the final stage resistor won't send power to the blower motor accordingly.
    It's not a nice job to do, not difficult. just annoyingly awkward to get to. Have fun. Plenty of info on changing it on here.
    Hi
    Where abouts is it located - driver side or passenger etc
    Thanks
     
     

  9.  
    #7
    BMW Crazed
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    chrisp_1's Car Details
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    google:- e46 blower diy

    first of hundreds -

    or

    http://www.google.co.uk/url?sa=t&rct...Ht9rW7Jl7z6WVw

    Thanks duly accepted in advance.
     
     

  10.  
    #8
    Bimmer Fan
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    havent looked yet, but a reserved thanks!! ;-)
     
     

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    #9
    Bimmer Fan
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    Thanks
     
     

  12.  
    #10
    Bimmer Fan
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    Thanks all - changed and worked a treat!!!!
    Merry xmas to all and especially those who helped!!
     
     

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