WARNING: This page is about a different car, the 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Pressing Off 1st And 2nd Gear Synchro-Hub
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Remove circlip before pressing off.
Press off synchro-hub together with 1st gear sliding gear.