2004 120d Dual zone climate issue


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  1. 2004 120d Dual zone climate issue 
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    tag338's Car Details
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    Hi I am new here so I hope this is the correct place for my question?

    I have a 2004 120d with climate control but have a very annoying problem.
    Everything works as expected apart from cool air will not come through the drivers side air vents. e.g. if I have the aircon on and the temp set to cold on both sides cold air only comes out of the passenger side!
    I think this is also the case for the floor vents too.

    Could this be a failed temperature sensor somewhere or a failed actuator?

    I have not been to the dealers as I can't really afford to pay there prices to diagnose never mind fix the problem!

    I was considering buying a code reader but am not sure which if any will read faults for the climate control?

    Any help on this issue would be very much appreciated!

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    Ronnie's Car Details
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    Dec 2007
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    Your best bet will be to take the car to a Independent BMW specialists that has a Autologic machine or similar dealer spec Scanner, they can then read the codes for you.

    A scanner to read the fault codes for the Climate control system will be pricey, unless you get something like Carsoft, which can be a ear ache to set up.

    The problem could be a actuator or sensor like you mention, not sure whether the solar sensor would cause this, will be best to get the fault codes read and then post them up

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