[V8] still no kickdown!!!

[Dave Saad]

I don't have an automatic Pete, but your diagnosis says that the  
kickdown switch or wiring still does not work.  Assuming that the  
climate control diagnostic is a valid one, you need to trace back  
through the wiring diagrams to find the problem.

I found the wiring diagram here if you need it:
http://www.eserviceinfo.com/downloadsm/13270/Audi_V8%20Quattro.html

You need to download all six ".rar" files and then "un-rar" them.  I  
only had to double click on the first file and my mac knew how to do  
the rest.  If you are on windows, my condolences, and you will  
probably need to find a free "rar" program.  There should be about 30  
of them, and one might even work without installing a virus.


and just to make you feel good about owning a V8 instead of a W12,  
read through this:
http://www.google.com/imgres?imgurl=http://dubfoto.com/albums/userpics/10003/F265_from_Wiring_Diagram.jpg&imgrefurl=http://forums.vwvortex.com/zerothread%3Fid%3D2993477&h=803&w=581&sz=92&tbnid=5TGC_TTQ1CiGNM:&tbnh=143&tbnw=103&prev=/images%3Fq%3Daudi%2Bv8%2Bwiring%2Bdiagram&usg=__3EM1kR4kfhjhuNR5kYNafB6UgQI=&ei=qUFASuy9ApHWsQOmwc2kDw&sa=X&oi=image_result&resnum=3&ct=image

that is a long link - you may have to do some cut and past to get it  
all, but the gist of the "essay" is that to replace the $400  
thermostat in a VW Pheaton, you need several more hundred dollars in  
misc gaskets and seals - and than of course the trip back to the  
factory to remove the broken bolt made of solid unobtanium.   Makes  
our motors look downright primitive.

Dave


On Jun 22, 2009, at 11:58 AM, Peter Littlewood wrote:

>
> Hi All
>
>
>
> The on going saga of my lazy v8 continues. found the switch on the  
> acclerator cable had fallen apart, so the tcu wasn't getting 12v on  
> pin 41 when the pedal is floored... (replaced cable, lost skin will  
> to live etc) Magic ! 12v on pin 41!
>
>
>
> Put it back together.. test drive... still won't rev past 4800 in  
> "E" or 5200rpm in "S". :-(
>
>
>
> I understand the climate control unit comes into play somewhere  
> (disengaging compressor clutch on AC under heavy load)
>
> I have tried the test on the climate unit on channel 17 and the  
> segment which should light up for the kickdown switch doesn't!
>
>
>
> Any info would be great..
>
> because i'm totally stumped
>
>
>
> Pete Littlewood
>
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