[s-cars] HVAC Error Codes - What do they mean?

[Young, Steve]

Doug...

Those codes point to flap servo motor issues.  There are three servos.  Central flap which controls the temp, defrost flap, and dash/feet flap I believe.  Cycle the motors through use of the CC head buttons and you should be able to get a handle on what's not working completely.  The servos are not cheap.  Over $100 each if memory serves.  The central flap can be accessed from under the rain tray and is the easiest to replace.  The other two are  accessed after removing the center console, and are a major pain to R/R.  There are write-ups around, I would check the QW FAQ, and Charlie Smith's or Huw Powell's websites.

http://www.elektro.com/~audi/

http://www.humanspeakers.com/audi/index.html

Good luck.

Regards,

Steven Young, CEM, CEA
Project Developer - Connecticut / New York / Vermont District
____________________________________TRANE
Commercial Systems and Services
Ingersoll Rand
301 Old Niskayuna Rd., Suite 1, Latham, NY  12110
*Tel: 518.724.1453
*Fax: 518.785.4359
*Cell: 518.378.8848
*Email: sryoung at trane.com
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-----Original Message-----
From: s-car-list-bounces at audifans.com [mailto:s-car-list-bounces at audifans.com] On Behalf Of Douglas Fifield
Sent: Friday, January 07, 2011 5:55 PM
To: brian hoeft
Cc: Scarlist
Subject: Re: [s-cars] HVAC Error Codes - What do they mean?

Thanks, Brian.

The air flow is obviously not going where it is intended.  I get very
little warm air on the feet and when I turn the front defroster on,
there is very little airflow to the windshield.  I was hoping that
someone out there has had similar problems and could point me to a
write-up or two.

I will search the places you mentioned, but was hoping to find a
shortcut.  Not looking forward to tearing apart the dash to access
flaps and motors.

D.

On Thu, Jan 6, 2011 at 7:56 PM, brian hoeft <qweblog at gmail.com> wrote:
> I don't see any replies here so I will chime in..
>
> I don't know precisely what those codes mean but would encourage you to
> search audifans or s-cars.org and I just learned of the main s4/s6 page on
> quattroworld has a pretty comprehensive FAQ..
>
> I would suspect that the flap motors are aging, but can be refreshed by
> removing and meticulously cleaning.
>
> You could also have heater box flap foam thats broken down and not letting
> the full range of motion happen.
>
> Are you even experiencing vent issues? like air rushing out of the front
> vents while it should be only on the windshield?? could just be a flaky
> hypochondriac  control head..
>
> -Brian
>
>
>
>
>
>
> .
>
> On Tue, Jan 4, 2011 at 5:01 PM, Douglas Fifield <douglas.fifield at gmail.com>
> wrote:
>>
>> Hedz,
>>
>> I have the following codes and dread the thought of what they mean.
>> Fortunately, I am completely ignorant so far.  Please help me
>> understand what bad path I must go down to fix them.
>>
>> 8.7     Temp regulator flap, sporadic block
>>
>> 11.5   Central flap, static block
>>
>> 13.7   Foot well/Defroster flap, sporadic block
>>
>> 15.5   Back pressure flap, static block
>>
>> Preparing for the worst,
>>
>> D.
>>
>> --
>> Douglas in MN
>> 95.5 Audi S//6 Avant
>> 73 BMW R60/5 mit Toaster Tank
>> _______________________________________________
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>> http://audifans.com/mailman/listinfo/s-car-list
>> http://www.audifans.com/kb/List_information
>
>
>
> --
>            Groundhog Day 2011
> This year, both Groundhog Day and the State of the Union address occur on
> the same day.
> "It is an ironic juxtaposition of events: one involves a meaningless ritual
> in which we look to a creature of little intelligence for prognostication
> while the other involves a groundhog." -A.A.
>      http://208.53.138.125:8068/
>       [blinders off&earplugs out]
>



--
Douglas in MN
95.5 Audi S//6 Avant
73 BMW R60/5 mit Toaster Tank
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