Hi
I知 new to Audi. I just purchase a 2007 Audi A3 with 134,000 miles. I am getting ready to do an oil change and want to make sure I知 putting good stuff. I Have always use Castrol full synthetic for my other cars and was thinking of doing the same. Is that okay or should I use a different one?

Also, I was not able to get records on when was the time belt change and the water pump. How much will that cost on average?

Thank you