serpentine belt
 

Any tips on putting my serpentine belt back on a 2002 audi a4 1.8 turbo, im having a bear of a time trying to do it. If anyone has a diagram that would also be appreciated.

Water temperature guage
 

Just replaced thermostat and my temperature guage is coming up to temp, then zeroing when the fan comes on I believe. Is this a symptom of something else? I believe my issue stemmed from mixing in wrong coolant initially, did not use a g12. If anyone can give me a hand with some knowledge.

I found my car serpentine belt diagram from there:
 

www.serpentinebeltdiagram.net

Its new site and there is not many diagrams, but if you can't find your belt diagram, you can just contact them and they will upload it... I did it and i get it. Regards!