If you are terrified of bricking your car (you should be), BMW offers a legitimate engineering path via (Dealer software) or Rheingold . You can enable the "Workshop Mode" which grants similar diagnostic views without patching the Linux kernel. The download for ISTA is available via BMW's official TIS (Technical Information System) for a subscription fee (~$30/day). This is the only legal download link.
Official access to these tools is restricted to authorized technicians via the BMW Aftersales Online System (AOS) bmw hu engineering tools download link