Just did the thermostat on my 535is and still runnin on the hot side of the gauge.Bled system many times.flow seems to be good.The cluch fan seems a little week. I acadently hit while i was bleeding and IT stopped rite in my hand,is that normal or is it shot?it only seem's to cool down when the aux fan comes on. I have the bently on this car. I am just lookin for some addvise on where to start.