Interior Heater Motor Not Working

Just bought a 99 620 Ld, there are a few little problems with it so going to work through them. The main problem is that the Interior Heater Motor isn't working, this is shown that it uses the same fuse as the Rear Window Demister that also doesn't work. The fuse they share is ok. Do they share the same solenoid? If so, where is this situated? Don't want to start pulling the dash apart unless I have to.

from the last news http://ift.tt/1rC4J75

via IFTTT