[s-cars] S4 thermostat replacement

[john cummings]

Read the recent posts about lost mpg.  After reading the discussions 
realized I probably need to replace my C4 S4 thermostat. Do not have  
Bentley  manuals ( hate the CD version I have for my wifes A4 holding 
out for old fashioned paper copy). Can anyone point me to a write up 
that addresses this.
TIA John Cummings
PS mineral spirits works great on tar also.