Coat the Threads on the Nut with Locking Fluid
WARNING: This page is about a different car, the 2017 Volkswagen GTI, 2016 Volkswagen GTI, 2015 Volkswagen Golf, and 2015 Volkswagen GTI. However, it is still accessible from the selected car via links, so may be relevant.
-- Tighten new output flange hex head nut.
A -36 mm Socket for 3/4 Inch Drive
-- Install the bevel box. Refer to BEVEL BOX, INSTALLING .
-- Check the level of the axle oil inside the bevel box. Refer to GEAR OIL LEVEL, CHECKING AND FILLING .