2.7t #1 piston?

[Thomas Barbera]

Fellow audifans,
I'm doing a t-belt replacement on my father's 2000 a6
2.7t and am a bit confused.  Which piston is #1? 
According to the crank pulley, I'm on TDC, but the
front right (passenger's side) piston on the engine is
not at TDC.  According a website I encountered, the
front right piston is #1.  Shouldn't that be at TDC
when my mark lines up on the crank pulley?  Any help
would be greatly appreciated.  Thanks.

Tom B.
'91 v8 5spd
'00 a6 2.7t (father's)