As the weather has started getting colder, and I've been using the heat more I've noticed an odd behavior with my climate control.
When it is cold outside I always keep my climate control set to 70F and on the several other E39s I've owned it will initially blow hot air out of the lower/foot...
Has anyone had a similar problem?? Any ideas what is wrong?
9C79 water valve left
9C7A water valve right
Ista-D diagnostic program tells:
"The left water valve is ativated and operates cyclically at 20% ON&OFF
Is the water valve clocked cyclically?"
Changed new water valve...