http://www.wedophones.com/BMWManualsLead.htm

Download the appropriate one for your vehicle. Extensive AC troubleshooting section inside.

When you recharged, did you also add oil for the compressor?

Might have to add some dye and let it circulate to eliminate leaks in the system as an issue.

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On Christ the solid Rock I stand, all other ground is sinking sand. (Edward Mote 1797-1874)