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BMW Tech and Performance
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Aircon problem: hot air - my time has come
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<blockquote data-quote="Fahami" data-source="post: 416893" data-attributes="member: 3846"><p>Simple check, look for any trace of oil (compressor oil) at the following part/component:</p><p></p><p>1. Starting from condensor ( infront of your radiator), pipe/hose, connector, </p><p>2. Pipe / hose/connectors from cooling coil(low press) to the compressor, to the receiver dryer (hi press)</p><p></p><p>if no trace of oil</p><p>Most probably the leak is from evaporator, which require to open the dashborad, as far as i know e34 no need to remove the dashbord, not sure for e39.</p><p></p><p>if cooling coil leak</p><p>Early check before it goes hot air (totally no refrigerant), after a while of driving with air-cond on, park your car and place a clean container under you car where air-cond drain hose is located. </p><p>Check the water collected, if oily then, the leak is from evaporator (maybe cooling coil / o-ring / expansion valve).</p></blockquote><p></p>
[QUOTE="Fahami, post: 416893, member: 3846"] Simple check, look for any trace of oil (compressor oil) at the following part/component: 1. Starting from condensor ( infront of your radiator), pipe/hose, connector, 2. Pipe / hose/connectors from cooling coil(low press) to the compressor, to the receiver dryer (hi press) if no trace of oil Most probably the leak is from evaporator, which require to open the dashborad, as far as i know e34 no need to remove the dashbord, not sure for e39. if cooling coil leak Early check before it goes hot air (totally no refrigerant), after a while of driving with air-cond on, park your car and place a clean container under you car where air-cond drain hose is located. Check the water collected, if oily then, the leak is from evaporator (maybe cooling coil / o-ring / expansion valve). [/QUOTE]
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Aircon problem: hot air - my time has come
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