[s-cars] phun with HphAC serphos

[Tom Green]

Vell, I'm not going to demystify anything for you, Mike.  Besides,  
any VT
ee major should love to tackle this thing.  :-)

I'm just awed by someone anal enough to pull the carpet out for a  
cleaning.
I can hardly get anyone to pull their mats out for cleaning.
If you are going to this extent and expense (I assume you have priced  
this
blue connector servo) then why not just pull the heater box and  
change the
heater core and blower motor for PM.  They are going to give trouble  
some-
time anyway.  Just get a new seal for the box to seal up the big hole  
it fits in.
Now, everything is easy to access.

The flap servo that is behind the blower accessible under the hood  
has an
A on the part # and is 1/2 the price of the central flap servo with  
the blue plug
although there are reports they are identical inside and work in  
either position
by changing the lever and plug.

Just concentrate on the symptoms to cure the problem, and use the  
fault codes
to verify.    The flap under the hood is known as the temperature  
regulator and
controls the amount of heat going through the heater core.  If you  
can't regulate
the temperature, ie, you get heat even with a/c selected or not  
enough heat,
change this one.
  The blue plug flap servo motor in the tray is the central flap  
motor and controls
air through the center vents.  If you are getting heat from the  
center vents instead
of the foot-well or don't get air from the center vents in a/c, this  
is the culprit.

You can get the fault codes from the climate control head without the  
VAG-COM
and check the current position of each flap as well.  You need to  
clear the codes
with the VAG-COM to check the current fault codes.  If you can drive  
a few miles
on  the rumble strips at the edge of the pavement, the flap motors  
will move to
the correct position corresponding to the c/c head setting.  HTH

Tom  '95 S6,  in Knoxville, TN
'95.5 S6 avant







On 20 Feb 2008, Mike Fitton, <rfitton at vt.edu> wrote:
> A couple weeks ago I pulled my carpet out for some cleaning.  While  
> it's
> being denastified I decided to do a nice long list of while-I'm-at- 
> its.
> Item number 9 or so is to figure out just what's wrong with these
> flapper motors.  I'm trying to distill a lot of conflicting  
> information.
>
> Exhibit A: VAG-COM shows faults in V68, V70, and V71.  I don't  
> remember
> the exact wording, but it sounded scary.
>
> Exhibit B: Some bloke in the UK is saying that the central flap  
> actuator
> can fail and cause the other two to throw codes.  This is also  
> cited in
> an AW post about four years ago.  He says the "central flap motor" is
> V70, p/n 4A0 820 511.  bib: http://www.eveshamsquash.co.uk/audi/ 
> climate.html
>
> Exhibit C: ETKA disagrees with nomenclature.  It shows 4A0 820 511,
> remarked V70, as actuator motor for fresh air flap.  It also shows  
> this
> part with the main blower fan that sits on top of the firewall  
> under the
> hood, though the part in question appears to sit on the little tray  
> guy
> that sits under the dash.  It's illustration 820-10.
>
> I'm starting to get cross-eyed trying to reconcile all this  
> information,
> so I need a reality check.  The part I need to replace/refurbish is
> indeed under the dash behind the radio with the blue harness, right?
> Also, some have said that this tray thingy with the two motor thingies
> in it can come out without removing the entire dash.  That sounds rosy
> and all until I get in there and try to actually do it.  Console's
> already out, and glovebox can come out easily if need be, but the two
> large right-angle air duct duders, while not at all tight, are still
> being very stubborn about coming out.  And even if they did, it's  
> still
> looking pretty impossible to get the tray out.  Any suggestions on  
> that
> part as well?
>
> -Cheers!
> Mike