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  1. #1
    sam1741's Avatar
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    air conditioning problem on E36

    hi all...
    need to ask sifu here..
    is there any parts that needs to be change

    my air cond on my E36
    is normal manual dial aircond (not the digital aircond)

    the problem is
    the compressor is always ON

    even if i press off the small button (suppose to switch off the compressor)
    but its still ON

    so its very cold inside,
    its on all the time,
    (normally its on until the desire temperature, than the thermostat will turn it off.. than when its not cold , will on again.. right?)

    its so cold that, if i off the blower n on again, there are fog coming out

    even if i turn on the dial to left most (coolest)
    or turn until the right most (suppose to be warm air)
    its still very cold....

    s0 now,
    its either, off, or very cold...



    so i dono what to check.. sigh


    hope someone here with similar experience can help me....

    thanks

  2. #2
    iScoupe's Avatar
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    Re: air conditioning problem on E36

    haha i having the same situation very long liao... in fact is ok with me,
    at nite just turn the vent away from me when cold, during the hot day the temperature just nice.
    if not got to change the thermostat control lor or convert to digital panel (Propel have).
    For 1992 E36 does not have heater hence always on & cold

    for more technical u can PM E36 experts collin or jawsg or bison.
    Last edited by iScoupe; 13-12-2008 at 09:24 AM.

  3. #3
    joegoi's Avatar
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    Re: air conditioning problem on E36

    For this problem it could be due to the 2 sensor that is probe into the cooling coil at the blower. You will need to change that.
    Also if your water pipe (expansion valve) that goes into another heater coil is blocked then your temperature inside cannot be adjusted anymore.

  4. #4
    sam1741's Avatar
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    Re: air conditioning problem on E36

    hi iScoupe and joegoi ,

    thx...
    so it could be problem of ..
    - thermostat
    - 2 sensors (is it located behind the knobe when i open up the panel?)
    - water pipe ... where is it located.

    later i try to check it myself

  5. #5
    futron.sim's Avatar
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    Re: air conditioning problem on E36

    Hoho. I am having the same problem as you. I was told by a mechanic that the car uses hot water to regulate aircon temp and it is extremely inefficient. The aircon continues to run and hot water is channeled into the heater core to heat up the air.

    If its too cold you are better off turning off the aircon to conserve fuel rather than using the thermostat.

  6. #6
    tonylyt's Avatar
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    Re: air conditioning problem on E36

    hmm... sound familiar for my E30 1990. Had this problem of air-con being too cold and was told to on & off the switch manually to control the temperature. Alternatively was to drive with the air-circulation off. The trouble was that the temperature control was by the water pipes running, behind the dashboard, from the engine radiator. In my case, the pipe was leaking and was sealed off by the previous user. So change the pipes and it works. Cost me a bomb though as a lot of works involved in dismantling the dashboard to access the pipe;

  7. #7
    sam1741's Avatar
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    Re: air conditioning problem on E36

    oooh.. so another thing that will cost a lot to repair..
    sigh.. this car i getting ... going to cost me alot just to repair it

  8. #8
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    Re: air conditioning problem on E36

    aiyah, old car is like that one lah... is the power of yr car ok? If yes, this aircon thing is just a small buggeration that comes with COE car. Enjoy yr ride lah... Leave it until u need to change the cooling coil also, then do it together. If recall correctly, takes abt a week, as dismantling the dashboard is a major job, unlike japanese car. Cost me abt $1200.

  9. #9
    ttee's Avatar
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    Re: air conditioning problem on E36

    ............
    Last edited by ttee; 05-12-2011 at 11:18 PM.

  10. #10
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    Re: air conditioning problem on E36

    Take the fuse out and open the windows - no $ and fuel saving to boot

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