Messages

1

General Topics / Newbie with heater problem 94 318i

« on: May 25, 2011, 03:06:01 AM »

I can't find an overpressure safety valve on it so may be an E30 only deal. Perhaps I will hook up a temporary bypass line around the heater valve and see what happens.

2

General Topics / Newbie with heater problem 94 318i

« on: May 23, 2011, 08:47:57 PM »

Hello all new to the board. I have searched but not found an answer so here goes. The other day the heat stopped working in my 318. The odd thing is it still blows heat if you keep the revs up over 2000 but when you back out of the throttle it gets cold almost instantly. I replaced the water pump thinking maybe a bad impeller and bled the system thoroughly, there is no air in it. The car warms up to operating temp normaly and does not overheat. This started all of a sudden like flipping a switch. I thought maybe the flap door was vacuum controlled and possibly losing vacuum to a leak but it appears to be cable operated. I'm at a loss on this one. Any thoughts?