2000 E46 330d heater blower

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  1. 2000 E46 330d heater blower 
    #1
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    skippy.22's Car Details
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    hi all my heater blower isnt working, whee is the fuse ill check tha first but wit my uck wont be that simple
     
     

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  3. heater blower 
    #2
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    alexhants's Car Details
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    hi mate,
    I had the same prob with my 2000 325i when i first got it....it turned out to be the first stage heater module ( think its called that)....its located behind the A/c panel and a sod to get at....i got a local indy to fix it for me, took him about 10 mins and cost me about £80.
     
     

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    #3
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    skippy.22's Car Details
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    Quote Originally Posted by alexhants View Post
    hi mate,
    I had the same prob with my 2000 325i when i first got it....it turned out to be the first stage heater module ( think its called that)....its located behind the A/c panel and a sod to get at....i got a local indy to fix it for me, took him about 10 mins and cost me about £80.
    thats not to bad ill have to see if i can get it done, from the sound of it its nightmare
     
     

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    RichardP's Car Details
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    Very likely to be the FSU (commonly called a 'hedgehog' due to the cooling fins). It's a pack of different value resistors that enable the fan to run at different speeds, they fail pretty often and are actually quite easy to replace yourself unless you have very big hands!

    Have a look at http://www.bimmerfest.com/forums/sho...d.php?t=143393 the main post is for the E39, but it's ver similar in the E46.
     
     

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    Quote Originally Posted by RichardP View Post
    Very likely to be the FSU (commonly called a 'hedgehog' due to the cooling fins). It's a pack of different value resistors that enable the fan to run at different speeds, they fail pretty often and are actually quite easy to replace yourself unless you have very big hands!

    Have a look at http://www.bimmerfest.com/forums/sho...d.php?t=143393 the main post is for the E39, but it's ver similar in the E46.
    yep that was it!!!......looked like a cooling unit for a small nuke reactor ....unfortunately i do have big hands
     
     

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    #6
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    Nice link from Rich, but the FSU is located on the driver's side on the E46. You can get access from underneath the steering column . Here is the DIY...LINK
     
     

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    #7
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    jamesee's Car Details
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    Heres my story which I hope might save some people a few quid.

    The problem I had with mine was it behaved itself but no air was coming out from any vent, couldn't hear any fan just vents moving. I read a few forums and decided (after checking all the fuses) to buy a replacement FSR and of course, it wouldn't work for me

    Tested the relays behind the fuse box and all was fine, then I taught maybe I bought a dud FSR! I then came across on one of the forums here a good way to check out the FSR which I should have done BEFORE buying a new one, bit of a pain but it could have saved me €50 if I wasn't so lazy (€120 for a genuine from BMW)
    Heres the test i've done

    Pin 1- Earth going to fan
    Pin 2- Live in (12v)
    Pin 3- Power from controls (2 - 3V)
    Pin 4- Earth
    Pin 5- Live for fan

    With a multi-meter first make sure your getting the correct voltage from these pins with the fan powered on.
    Check Pin 4 and 2 for 12v in,
    Check 4 and 3 for between 2 & 3v
    then with the fan powered on lowest setting check 1 and 5 and you should be getting around 3v, keep pressing up the fan speed and you should see the voltage incresing all the way up to 11 or 12v.

    Please correct me if im wrong on any of this but it worked out fine for me.

    The new and the old original FSR gave me the same results (another forum says you should remove fuse 50 for 2 or 3 seconds, it resets something) so next in line was the fan Stripped it all down, disconnected the fan power cable and cleaned out inside the 2 connections at the end of the cable with a small round file


    Larger Pic http://www.bimmerforums.co.uk/forum/...pictureid=2007

    And guess what IT WORKS FINE NOW!!!!!

    I have step by step pics of how to get to this cable, didn't get to edit them yet. If anyone wants them, let me know
    Last edited by jamesee; 14-10-2009 at 03:37.
     
     

  10. The Following User Says Thank You to jamesee For This Useful Post:

    xXNealXx (14-10-2009)

  11.  
    #8
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    Thanks for sharing that James
    Last edited by xXNealXx; 14-10-2009 at 15:00.
     
     

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    #9
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    skippy.22's Car Details
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    still havnt had time to do it it works some times but now its like a car on bad tickover up down up don does this really sound like fsr cant arrord to do it and then not be fixed just had 1 month off work sick and short on cash :-(
     
     

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