Hey check out this video. Great DIY brought to you by EdzGarage YouYube channel. The disc brakes on BMW 3 series are pretty straight forward to replace. But if you have never worked on your E46 then you maybe need some insight. This video seems to be pretty complete and they have many other videos on lots of great projects that you can complete in your own garage on your BMW E46. Check out the video below and subscribe to their YouTube channel.