This took me hours and hours of searching John....
... hope it helps
Cant upload the pics from this site, have to go through thesamba, dang, and when I do the book pages are too trimmed! argh!
Anyway....
Book says.....
Release threaded cap and pull out heating control knob unit
remove the cable pin by use of drift
screw off threaded sleeve
Drive out grooved pin and withdraw know from the spindle
Lift off threaded cap
Install
Grease cable with universal grease VW A-052 ( I am sure you have that)
The longer end of the heating control cable must be inserting into the right-hand conduit tube (as seen in t the driving direction)Before installing the heating control knob, turn the knob anti-clockwise until stop can be (word missing) and then turn it clockwise 3 turnsInsert the heating control knob unit, taking care that the guide nose enters the slot in the threaded sleeve.
The heating control knob is properly installed if the threaded sleeve does not stick up above the edge of the conduit tube.
IF you still need help, I can send the pro over.....