1999 BMW 528 not cold

1999 BMW 528
75,000 MILES • 6 CYL • 2WD • AUTOMATIC
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FORERUNNER
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Recently my ac was working fine, but now just blows air and not cold even though I lower tempereture.
All belts are running and wondered if it needs freeon recharging?
If it is can I do it myself?

Mike
updated 3-9-09
In addition to my question I also want to add that there is a check engine light that comes on every now & then. Could this be related ac problem?
Mar 9, 2009 at 2:05 AM
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RASMATAZ
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You can do it yourself by using the R-134a canister w/gauge
Mar 9, 2009 at 2:14 AM
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DOCHAGERTY
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Probably not. The fact that the system is low means there is a leak. The leak detection and recharging equipment is quite expensive. Overcharging is dangerous and possible if you just add refrigerant without knowing what is in the system. I would take this into consideration. ♥
Mar 9, 2009 at 2:18 AM
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RASMATAZ
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To add on top off Doc on this

The fact that the system is low means there is a leak. you'll be also losing the PAG oil and can cause the compressor to lock-up

You need a manifold gauges to read the high and low pressures
Mar 9, 2009 at 3:22 AM