I have a BMW 330ci sport auto. The coolant light keeps coming on. when i check the coolant level it's fine. The climate control keeps blowing hot and cold too - i think this is related. Is there air in my system? if so, how can i bleed it? thanks

faulty coolant level sensor in the bottom of the expansion tank?

if there's air, take out the bleed screw, and fill up the system to push the air out.

faulty coolant level sensor in the bottom of the expansion tank?

if there's air, take out the bleed screw, and fill up the system to push the air out.

+1,

http://www.pelicanparts.com/bmw/catalog/shopcart/BE46/POR_BE46_WATmis_pg1.htm#item1