Re: type 44->a6/100 CC update info(long, but worth it!)

[Brett Dikeman <brett@pdikeman.ne.mediaone.net>]

> Brett Dikeman wrote:
>
>> -Vacuum system is different, but against what some listers said months ago,
>> the a6/100 system is NOT completely electrically -ACTUATED-.  It is
>> electrically -CONTROLLED-(as is the type 44.)
>
> I hate to rain on this, but I believe that it *is* fully electrically
> actuated,

Then what about the large collection of "2 way vacuum solenoids" that are 
each paired up with a single vacuum actuator?


>
> - it sounds electrically controled: adjust the temp, and you get a "bzzzt"
>   from the flap motor; most dramatic is to go from full hot/cold to the
>   other end: it takes about 8sec. for the motor to crank the flap into
>   place; you can hear continuous adjustments too: "bzzzzzt" "bzt" "bzt".

Heater core valve, temp flap, and defroster flap are actuated by motors 
with a feedback resistor.  This is true in almost every car made by Audi 
and Porsche from 1985-ish on.  My car makes similar noises.  I'm not sure 
if all 3 flaps are motor controlled in all the cars.

Plus, if the defroster/temp flap -isn't- in the 5k/200, it's fairly 
probably that we can pop in the servos from the a6/100's.

>
> - fan speed: the fan speed appears to be "infinitely" variable; in fact,
>   it seems to have about 16 discrete steps, represented by and LCD bar
>   graph; I don't know how they achieve this fine control, but I doubt
>   that it's with resistor packs... (though in theory, it could be!)
Then why is there a resistor pack installed in the heater box, nearly 
identical to the 5kCST and 200 resistor packs?  If it is different, we can 
swap it out.  They appear to have the same footprint and heatsink; if they 
don't, a swap/adjustment can be made.

Brett
------
Brett Dikeman
brett@pdikeman.ne.mediaone.net
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