Characteristics Of The 1ST Gear -A- And 2ND Gear -B- Inner Races
WARNING: This page is about a different car, the 2010 Audi A5. However, it is still accessible from the selected car via links, so may be relevant.
-A- the friction surface on the inside of the 1st gear inner race has a coating -arrow 1- and is conical.
-B- there is no friction surface on the inside of the 2nd gear inner race -arrow 2- and is cylindrical.