1999 Audi A4 Quatro 1.8T

Just recently put a new timing belt & tensioner on my car and have been driving it a while. I had someone hook it up to their computer and they said it was throwing an occasional cam sensor error. A quick check showed the cam was off two teeth. I pulled the front off far enough to get to the top timing belt cover but cannot compress the tensioner.
- Is there a way to compress or remove the tensioner without removing the bottom cover?
- should the crank pulley mark and camshaft mark line up perfectly?
- what size torx bolt is on the crankshaft pulley?

Thanks

 

I'm pretty sure the crank-pulley bolt is a 6mm allen but I could be wrong...but I dont think I am

 

I read somewhere on here that sometimes the two tdc marks don't line up exactly, and you should check and proof mark it yourself during dismantle.

G

 

Agreed with both these guys, and as for compressing the tensioner, you will likely need to dismantle it all. I would anyway - it's easy and lets you see everything much better.