Press the Selector Cable Retainer onto the Selector Relay Lever

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.

Selector relay lever removed.
The cable retainer may only be pressed on at the bushing -arrow-.

Fig 1: Identifying Direction To Press On Cable Retainer
Courtesy of AUDI OF AMERICA, LLC
The control cable retainer must move freely on the selector relay lever.
The control cable retainer must be behind the catch.

-- Make sure it engages securely.