yboy82 10/19/2010Did you already check your engine coolant level (refill and bleed the air present in your cooling system if necessary), check your thermostat if your engine coolant operating temperature is below specification and check the condition of your heater control valve operation.
darren 10/31/2010ive got the same problem on my 316ti 2002 , ive had new thermostat and oil cooler and heater control valve still no joy, can any one help
yboy82 11/5/2010Darren did you already check the condition of your temperature and your temperature switch? It is possible that your temperature control cable is loose or damaged. It’s inside your heater-A/C housing.