E39 528i 98' I have a huge problem. Every day after around first 15 min of driving, my car start acting weird. Lose throttle almost completly. Always after i go around 2ooo RPM i can hear very loud noise like a vacuum cleaner from the engine if i go higher it is louder and louder. Fuel consumption now is 13.2 miles per gallon and i know this should be a round 22 MPG or even more. I have no power at all. No "check engine light" so i have no idea what to do. Please help!