
Welcome to the website!
You know, I forgot to change the timing belt on my crystal ball, and now it doesn't tell the future any more...
While it's possible for someone experienced with these cars to have a look and offer a guess at how recent some of the components may look, you have no knowledge of whether all the needed components were changed and how well the work was performed. A good rule-of-thumb that's been adopted over the years on the TDI-specific websites is that if you can't verify that the timing belt system on any new-to-you TDI was properly and completely changed in the recent past, change it ASAP. Keep in mind that many people get rid of their cars when they are confronted with the cost of having this little (?) maintenance chore performed - usually at a dealership (the most expensive option)... So chances are that your car actually does need a system refresh. (The timing belt system in your car is designed for a 160,000 km lifespan, so your car is just about at the timing belt change interval... possibly it was recently done, but I'd bet against it...)
Take a look at the procedure
http://www.myturbodiesel.com/1000q/a...etta-TDI-1.htm to see if you're comfortable with what needs to be done. The special tools (necessary!!!!) can be rented or borrowed... For a complete parts list see the ALH kits at
http://www3.ns.sympatico.ca/roseland/VWPartsA4.htm and
www.precisiontuning.ca
Feel free to ask about anything that comes into your head...
All the best,
Yuri.