2002 330i e46 can't direct the air from my heater

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  1. 2002 330i e46 can't direct the air from my heater 
    #1
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    Andy 73-ZR-LJ's Car Details
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    Hi all i've had my 2002 330ci for a year now but recently the heater has decided not to blow out from the vents 1st it stopped blowing the windscreen/footwells
    but now the blower works on the windscreen only, the heater is working i can hear it working, it heats up, goes cold, full blast also works. can anyone help with this problem. someone had mentioned that the directional flaps work on hydraulic cylinders and maybe that was the cause is this correct?

    i've just joined the forum and already it's been worthwhile cheers keep the good work up
     
     

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    #2
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    Ronnie's Car Details
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    Would be a good idea to get the fault codes read for the car first, also check out your fuses, unfortunately my knowledge on the e46 heater workings isn't great.
     
     

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    Andy 73-ZR-LJ (12-05-2009)

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    #3
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    Andy 73-ZR-LJ's Car Details
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    330ci
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    Hi Ronnie cheers for your reply
    I had the car in a BMW dealer for it's service and I mentioned the problem to them but
    when I picked it up they said they needed more time to investagate the fault I would presume they would of done a fault test then.
     
     

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    Quote Originally Posted by Andy 73-ZR-LJ View Post
    someone had mentioned that the directional flaps work on hydraulic cylinders and maybe that was the cause is this correct?
    Let's hope you didn't believe that . There are electronic actuators that control the flaps and my guess is that the HVAC controller module is not working correctly.
     
     

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    #5
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    Andy 73-ZR-LJ's Car Details
    Model of Car:
    330ci
    Year of Manufacture:
    2002
    Transmission Type:
    Manual
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    Cheers NealP
    By the HVAC you mean the heating, ventilation and air conditioning controller module is broke if so can this be bought seperate or do i need a new heater.
    Last edited by Andy 73-ZR-LJ; 11-05-2009 at 20:16. Reason: spelling mistake
     
     

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    Yes...the HVAC module is built into the control panel. The actuators are located on the M-bus and there are 5 stepper motors connected to it through the control module. It also contains an EEPROM to store fault codes. So as Ronnie says, codes need to be read .
     
     

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

    Andy 73-ZR-LJ (12-05-2009)

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