Take this info with a grain of salt... but from what I can tell, VW warrenty time breaks down like this:
r/r turbo is 290
r/r oil return is 70
r/r oil supply is 50
r/r intake is 110
These are time units, 100 being 1 hour. So the total on there is 520, or just under a tick of 5 hours and 15 minutes.
When I replace a turbo, I always replace the oil supply and return lines, nothing worse than killing a new turbo.
But I find it very odd that VW says it takes more time to replace the oil return line than the oil supply line. Also note that on 99% of the customer pay jobs, the labor time is going to be higher than the warrenty rate, typicial is warrenty rate times 1.5, so 520 X 1.5 = 780 time units.
A few other things to think about... I'm not sure, but I think there is some overlap in the rates I came up with... belly shield being counted twice, and the charge pipes as well. But not counted is how much time is spent on cleaning out the intake and EGR. As I understand it, the labor times are based on using hand tools. VW warrenty can be crazy stupid low. For example, I'm wanting to see the person who can do a complete engine swap in under 4.5 hours (new engine is a bare block, cyclinder head isn't even bolted on) with only hand tools.
Another thing, just because a job is being billed out at X time (5 hours for example) and a tech does the job in Y time (3 horus), don't think you should only pay for Y time (3 hours). You are not so much paying for the time, but the job completed. A good tech shouldn't be taking a pay cut because he/she has purchased thousands of dollars worth of tools and has the skills to do a job quickly. If you think you should be paying for the Y time, then are you ready to pay Y time when a slow tech does the same job?
Anywho... it seems I had too much diet soda and now I can't get to sleep thus I'm rambling on here instead of dreaming about VWs.