88 80Q fan knob cable does what?

[Lincoln Rutledge]

Hi Folks, while investigating a weak heat issue on my '88 80 Quattro, I
discovered that when you turn the fan knob to off, you can then turn it
counter clockwise, which actuates a cable.  Does anybody know what that
does?

Everything else looks like it's working, but most of the time the heat
is pretty weak in the winter.  I have flushed the heater core real well,
and bled the air out of the cooling system.

Some gray foam of some kind has deteriorated, and blows out of my vents.
 There is some gray foam wrapped around some of the wires in the console
(behind the radio etcetera).  I guess that is where it is coming from.

It looks like to get the actual heater box out I would have to pull the
dash.  I have heated seats, and the heater blows warm air, so that ain't
happening.  But I can see in the heater box, and see flaps moving when I
turn the hot/cold and floor/defrost knobs.  I have no idea about the fan
knob cable.

Thanks,
Lincoln

-- 
http://www.fastmail.fm - Choose from over 50 domains or use your own