Installed position of shafts and selector rods in transmission, as of transmission manufacture date 190503:
WARNING: This page is about a different car, the 2004 Volkswagen R32. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Installed Position Of Shafts And Selector Rods In Transmission (As Of Manufacture Date 190503)
1 - Input shaft
2 - Output shaft 1st to 4th gear
3 - Output shaft for 5th/6th and reverse gear
4 - Reverse shaft
A - Selector rod for 3rd and 4th gear
B - Selector rod for 1st and 2nd gear
C - Selector rod for 5th and 6th gear
D - shift fork for reverse gear