Question about 2004 BMW 5 Series
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Posted on Jan 02, 2017
SOURCE: A/C COMPRESSOR DOES NOT COME ON
sounds like your a/c is freezing up. i would recommend checking your charge level (a/c recovery machine) also ispect lines to see if there is a restriction (a/c line has frost on it) the a/c control panel could be defective or even the engine control computer (receiives activate signal from the a/c control panel and activates the compressor) i haven't seen many pressure switches fail on bmw's but if you wanted to jump it to test i would try all possible ways of shorting it out, its a 5 volt signal from the control panel. but it doesn't sound like the switch has failed. my recommendation is to recover the system and pull a vacuum on it for 30 minutes and start your diagnosis with the correct fill level. 1.63 lds of r134a
Posted on May 03, 2009
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