Fans work but ac not running and cooling on 2005 BMW Z4

Just had to replace expansion tank due to dead battery. The fans apparently did not have enough juice to run. With fans not running car got hot and shut off after blowing the expansion tank. After installing new battery. Fans and ac did not re-engage and run after electrical failure. Got fans working via meter but no ac. Any ideas?


Asked by for the 2005 BMW Z4
ac am

ac and fan not working 100% checked all fuses there ok 5