Audi 1.8t AGU engine website needed
 

Can someone send me a link to a really good 1.8T engine web site for DIY types. I have a '99 Audi A3 Sport that I need to bone up on.

I want to learn about how to troubleshoot and repair/replace anything related to the turbo and Engine Coolant Temp sensor false alarms, etc.

My engine also has over 116,000 miles and all major components of the power train are original. Only thing that really expensive item that has had to be replaced was the air conditioner. I expecting the clutch to go out immediately as a result of this request...

I want to know what oils are appropriate for the age/mileage of the car in cold climate, 35F average.

Thanks in advance!