I just removed the CDV without bleeding and no problems what so ever. (Just REMOVED IT WITHOUT installing the moded one) I just made sure I clamped the hose pretty tight so the brake fluid doesn't come out and viola. The hardest part was getting under the car. I actually had to buy a drive up ramp (Murrays $35), once the jack got underneeth the car then I was able to jack the car up . First impression is wooooow, now it's actually my foot that controls the cluch. THANKS FOR THIS DIY, I love it. This should be the way BMW comes out of the factory!!!!! I don't know why you would ever want a CDV. Even if you drop the clucth at high rpm you'll smoke the tires, but if you drop the clutch with CDV install, you'll smoke the clutch. So what's the point ? Tires are cheaper to replace anyhow