The service manual for my (November 07 build) A4 3.0 tdi says for fixed service intervals (mine's on annual) the oil should meet VW 5005 00 or VW 505 01. I'm about to use oil to 505 00 (Shell Helix HX7 10w 40w).
I'm being advised that this is wrong, and for cars with no DPF, it must be only 505 01, and that 505 00 is not suitable!!!

Is the book wrong

Shell's own lube checker also list 505 00, as long as there is no DPF fitted. The Audi dealer who supplied the car new has confirmed that it does not have a DPF. Anyone know the correct answer? Or what the difference between 505 00 and 505 01 actually is?

A4 Avant 3.0 tdi Quattro Auto - vwunderbar!