This leads me to my 2006 BMW 530xd e60.
My brake lines were severely corroded when I checked yesterday's brake fluid spill. My vehicle is still in my garage. I got in my car today and fired it up; it sounds considerably louder than before, and smoke, mostly blue and white, is coming out of the tailpipe. It seemed like there was absolutely no boost when I drove it for ten minutes to the repair. Being behind the wheel felt like you were in a diesel vehicle devoid of turbo. Even if the RPM reaches 4000, it appears that no boost is applied. On level roads, whether I use cruise control or keep the speed constant, I see that the rpm fluctuates somewhat.