Check tdiclub.com and surf around. the 700$ is what I had heard before for timing belt. If someone has the VAGCOM computer program and is familiar with the maintenance task then that is cheaper. Changing the belt involves injection pump timing with a comuter and the program and new stretch bolts. You need to know the corrrect bolts. If the wrong bolts are loosened the pump is just a rebuildable core. I have a 2002 and it is a 60,000 mile task. I heard the 2003 are up to 80,000. When you have it done get an 80,000 mile belt. If you have a good diesel mechanic that would be better than the dealer. Another member " therabbitree "??? has been in these engines a lot deeper than me. I just drive it and change the oil. Everything else I write the checks.