[s-cars] wonky temp gauge

[Douglas Fifield]

Just an added comment to Dave's profuse advice above.  To get an
accurate reading on channel 51 of the HVAC head, the climate system
has to be turned on (press the "auto" key before accessing channel
51).

My two bits.

D.

On Thu, May 22, 2008 at 12:57 AM, David Forgie <forgied at shaw.ca> wrote:
> Ron: Most likely your problem is the Multifunction Temperature Switch (MFTS).
>
> Information about the purpose of the MFTS in an AAN vs a 3B is discussed here:
>
> http://forums.audiworld.com/s4s6/msgs/148742.phtml
>
> You can confirm that your problem is the MFTS by checking the coolant temp against
> Channel 51 on the Climate Control data.  If Ch 51 says 89 deg C and your gauge says
> something a lot lower, then its the MFTS (which is really the temp gauge sender).  If
> Ch 51 also reads low, then your thermostat is stuck open.
>
> Accessing the Climate Control is done by following the instructions here:
>
> http://www.audiworld.com/tech/int5.shtml
>
> Once you have it figured out and it is the MFTS, the Part No. is beside No. 16 in
> the diagram in this link:
>
> http://forums.audiworld.com/s4s6/msgs/193770.phtml
>
> A MFTS replacement DIY is available at:
>
> http://forums.audiworld.com/s4s6/msgs/56799.phtml
>
> Hope that helps.
>
> Dave F.
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-- 
Douglas in MN
95.5 Audi S//6 Avant
73 BMW R60/5 mit Toaster Tank