BMW Repair: BMW fuses, corina corina, 1995 525i bmw

Question
I have a 1995 525i BMW (I know you said 1999 but I think the problem is classical). The horn was not working. Fuse 9 had blown. I replaced it and now have a working horn but the air-con (which was working when the horn didn't work) doesn't blow cold air anymore. The car just had the revision 2 done three weeks ago. Is it another fuse, maybe, that can cause this?
Thanks in advance.

Corina

Answer
Corina, What is ment by 'revision 2 done three weeks ago'
I am guessing you mean "Inspection 2" being performed.
Fuse 9 show the horn, A/C control unit, and the Auxilliary cooling fan. The most likely cause is probably the Auxilliary cooling fan. Have the Auxilliary cooling fan checked for proper opperation. It is in front of the radiator and condenser. The fan should come on with A/C operation. Good luck.
-Evan