air conditioning puzzlement - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 08-21-2006, 07:38 AM
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Red face air conditioning puzzlement

Hi All!

the car: 87 325e
symptom:
Air works and blows cold when the outide temp is cool and at night. When it gets hot out (Savannah ga!) the air won't come on at all! Additionally, the low speed fan works, but never the high speed, yes, I checked the radiator mounted switch, it's ok.
any thoughts?

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#2 (permalink) Old 08-21-2006, 09:22 AM
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OK... that was a little vague. When you say it won't come on at all do you mean that the compressor just won't run or the blower fan isn't working or what? And when you reference the low and high speed fan, do you mean the electric radiator fan or the dash fan?

Oh and post more pics of your car! (by that I mean your car with your girlfriend! ) LOL!
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#3 (permalink) Old 08-21-2006, 10:57 AM
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low coolant level could cause it to not blow cold
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#4 (permalink) Old 08-22-2006, 11:30 AM
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Red face

Correct I believe, This is my daughters car and unfortunately, I'm 800 miles away. but I believe that the compressor is not kicking on at all in hot weather. I recharged the system several months ago, (it was converted to 134 years ago) and I know that the system is holding the charge, as when it works, it is blows very cold. By the way, the car has a new thermostat too.

Oh, the radiator fan dosen't operate on high. the inside blower is fine an all four speeds.

not my girl friend, my daughter! (my 325IC - her's the 325E coupe) both cars are loved!

Thanks all


Last edited by luckycat; 12-30-2006 at 08:20 AM.
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#5 (permalink) Old 08-22-2006, 12:12 PM
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Daughter! OOOPS! Sorry... no offence! Your a lucky man to have such a beautiful daughter, also cursed as I'm sure you well know. LOL.
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#6 (permalink) Old 08-22-2006, 12:50 PM
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When you "charged" it last, did you use a guage manfold or just a hose and a can? It's possible that the system is overcharged and the high pressure switch is turning off the compressor to keep from damaging it. If the A/C works well when it's a little bit warm outside but not when it's actually pretty hot, then I'd say that's the problem. Otherwise you may have a switch or relay problem, or maybe the clutch coil windings are going bad. Hard to say without a detailed description of when exactly it does what.
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