Hi, it's just staring to get cold here in Oz - and the heater doesn't want to work!
Thermostat seems to be working fine and the engine warms up and gets to operating temp OK.
The coolant hoses going into the firewall - 1 gets warm and the other remains cold. I undid the warm hose with the engine running and the coolant wasn't 'pumping' through (if that makes sense).
Before I start removing heater switches or heater valves, has anyone else come across this problem?
It's a 1987 318i Coupe.
Cheers, Dave.

