1) Download current drivers from http://packman.links2linux.de/package/broadcom-wl. You need two drivers. In my case
2) Open Linux terminal and go to the directory where you downloaded these drivers. Let run two commandos one after another
rpm -ivh broadcom-wl-kmp-default-184.108.40.206_k220.127.116.11_0.2-7.pm.8.5.i586.rpm
rpm -ivh broadcom-wl-18.104.22.168-7.pm.8.5.i586.rpm --force
3) Reboot your PC. If you still don't have a WLAN connection go to the YaST and configure WLAN in network devices. You should see at least your drivers.