thermostat?

[Austin Calise]

I'd say check the wires to the MFTS and or replace the sensor. They're not all that expensive off ebay http://cgi.ebay.com/ebaymotors/Audi-S4-A6-90-80-Water-Temperature-Temp-Sender-Sensor_W0QQcmdZViewItemQQcategoryZ33682QQihZ019QQitemZ290185007148QQrdZ1

                              HTH's Austin

       
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