[s-cars] phun with HphAC serphos

[Mike Fitton]

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