Front strut

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2008 Audi S4, 2008 Audi RS 4, 2008 Audi A4, 2007 Audi S4, and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Auxiliary Strut, And Transportation Protection Devices

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Pull auxiliary strut - 2 - downward.
Remove 2 transportation protection devices at each strut - 1 -.
Install auxiliary strut - 2 - by sliding up in spring retainer.