E46Fanatics - View Single Post - E46 not blowing heat when stationary but getting heat when driving

Brinkley · 11-29-2012, 08:16 AM

I would say you have air in the heater core, probably as a result of a slow coolant leak. A through inspection of cooling system, should reveal the problem, but it's most likely a crack down the expansion tank.

11-29-2012, 08:16 AM	#4
Brinkley Registered User Join Date: Dec 2006 Location: asheville NC Posts: 1,424 My Ride: 99 328i, 02 325ic View My Garage	I would say you have air in the heater core, probably as a result of a slow coolant leak. A through inspection of cooling system, should reveal the problem, but it's most likely a crack down the expansion tank.