WARNING: This page is about a different car, the 2009 Audi TT and 2008 Audi TT. However, it is still accessible from the selected car via links, so may be relevant.
-- Break off the pin in released position.
-- Guide a screwdriver -A- into hole -B- of the lock elbow.
Fig 1: Identifying Screwdriver To Remove Lock Elbow For Selector Shaft