Number one, make sure the system is bled properly. E36's are notorious for being very hard to bleed all the air out. If it is bled properly, replace the thermostat and then rebleed. Then last, the temp sensor. The auxiliary fan is made to come on when the A/C is turned on and when it gets really, really hot outside. Like in the summer in bumper-to bumper traffic. Maybe not be hot enough to turn on now. The engine fan may be bad, but with the engine running, you can tell if it's turning or not.
1995 325I, window tint, K&N, debaffled airbox, BMW #104 wheels, Nighthawk low beams, smoked side markers, smoked corners, smoked taillights, M3 stlye heated mirrors, various interior bits, Bosal cat-back.
Last edited by tomctx; 02-20-2006 at 01:00 PM.