No heat in cabin, fan speed only 2 bars in Auto mode

[gvanhoozer]

I had to replace a cracked coolant recovery tank on my 2009 BMW X5. Since the replacement, there is no heat in the cabin and regardless of the setting in Auto Mode, there are only 2 bars on the fan speed in Soft, Medium and Intensive settings. The heater and auto mode were functioning fine prior to replacement of the coolant recovery tank. I have back flushed the heater core, check the heater control valve (hot fluid enters and exits the valve) and purged the system of air. Still no heat and the auto mode still not functioning.

If it weren't for the issue with the auto mode, I would suspect replacement of the heater core may be necessary. There are no symptoms of a leaking heater core with the exception of the occasional smell of anti-freezed from the vents prior to replacement of the coolant recovery tank.

Any help would be great as it is cold in Colorado now.

Thanks!