You turn on the heat and the air smells funny it kind of smells like glue what could cause this?

Answer 1

Could be bacteria build-upIf your vehicle has air conditioning the smell could be caused by build up of bacteria on the heater matrix and in the vents, as this bacteria decays it causes a smell inside the cabin, this can be resolved by purchasing air specialist air con cleaner the is sprayed into the air vents. The smell can also be caused by the heating of leaking coolant from the heater matrix, this would also combined with the car steaming up. Check the coolant level to see if it has dropped.