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.
Fig 1: Identifying Tool Assembly To Pull Out Bearing Bushing For Selector Rod
Courtesy of AUDI OF AMERICA, LLC
A - Internal puller 14.5 to 18.5 mm, for example Kukko 21/2