The advance/retard is handled by the ECU on these, to check the timing you have to plug into the ECU using VAG-COM or VCDS software and put the ECU into basic settings,whilst holding the revs at exactly 1500 rpm and shining a timing light onto the crankshaft pulley at the same time, now if after that you have to adjust the timing then thats when your other 3 hands come into play.
Easy peasy really.