[s-cars] 95.5 S6 No/Low Heat

[chris chambers]

Gentz,

Wouldn't a bad  heater control valve cause this kind of problem?


Chris


--------------------------------------------
On Fri, 2/5/16, Paul Luevano <paul at clarity.net> wrote:

 Subject: Re: [s-cars] 95.5 S6 No/Low Heat
 To: 
 Cc: "s-car-list" <s-car-list at audifans.com>
 Date: Friday, February 5, 2016, 10:18 AM
 
 On 2016-01-08 09:07, Paul Luevano
 wrote:
 >
 >> List-
 >>
 >> It's getting cold in the northeast, so of course
 the heat in my S6 is getting flaky.
 >>
 >> Noticed the other morning that the car was never
 heating up.  It usually gets to temperature, even on
 the coldest mornings, in 5-10 minutes.  Now, at the end
 of my (admittedly short commute), the car is barely starting
 to warm up.
 >>
 >> Did a little digging this morning, and while the
 dash gauge is showing normal temp (thermostat just replaced
 in preparation for the winter), no matter where I set the
 climate control settings (dash, floor, center vents, etc.),
 it is blowing cool to luke warm air at best.
 
     Just revisiting this issue.  I had
 assumed it was likely a faulty temp 
 flap servo, but when I dug into it, the servo was moving
 freely as I 
 cycled from "Lo" to "Hi".
 
     I *did* notice that while the lower
 heater hose feeding the heater 
 core, the upper return hose was, at best, luke warm. 
 Good photo here:
 
 http://i187.photobucket.com/albums/x242/austinado16/Audi%20A6%20temp%20control%20motor/P1020989_zps1623b883.jpg
 
     I did bring up the CC codes, and all I
 got was a "15.7 Air Flow Flap, 
 sporadic block".
 
     Now what is odd, is every now and then, I
 will get full heat.  Seems 
 like once the car is up to temp, if I shut it down, and
 restart, I then 
 have heat.
 
     Any idea what I should look at next, what
 channels on the CC head I 
 should be looking at for insights?
 
     Thanks!
 
 Paul Luevano
 Wakefield MA
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