1997 e36 323i auto coupe, buzzing heater control

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  1. 1997 e36 323i auto coupe, buzzing heater control 
    #1
    Bimmer Fan
    Car Details
    mck684's Car Details
    Model of Car:
    323i
    Year of Manufacture:
    1997
    Transmission Type:
    automatic
    Car Body Type:
    coupe

    Join Date
    Nov 2008
    Location
    bicester
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    hi,

    i have recently bought a 323 coupe auto, there is a problem however that has come to light. when the car warms up, a strange sort of buzzing noise starts to come from around the heater climate control unit. the noise more noticeable when the car is warmed up, especially if you stop the engine after a journey then start shortly after. its like a fan buzzing i think but cant be sure. its not a constant steady noise but a stop/start irregular buzzing.not sure if its got anything to do with the heating which doesn't appear to read the correct temp. (have to boost it to 32 degrees to get warm out!)

    any ideas?

    thanks.
     
     

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  3.  
    #2
    BMW Guru
    Car Details
    Ronnie's Car Details
    Model of Car:
    See above
    Year of Manufacture:
    Never too old, never too new
    Transmission Type:
    Always manual
    Car Body Type:
    Usually 5 doors
    Ronnie's Avatar
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    Dec 2007
    Location
    Bournemouth, Dorset.
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    The heater control panel does have a fan built in, they can get clogged with dust so some people have been known to remove the panel and give them a clean
     
     

  4.  
    #3
    BMW Crazed
    Car Details
    Wonkydog's Car Details
    Model of Car:
    E46 330D Sport
    Year of Manufacture:
    2002
    Transmission Type:
    Manual
    Car Body Type:
    Saloon
    Wonkydog's Avatar
    Join Date
    Dec 2008
    Location
    Oxfordshire
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    As far as I am aware, if we are talking about the same fan, it runs ALL the time.

    Something to do with sensing interior temps. I had the dashboard apart and heard it, gave it a blast with compressed air and a poke with a soft paint brush. Result - less noise.
    Clear your heads and get ready to run.
    Remember, the best times are yet to come.
     
     

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