WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Trailing Arm Tools
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
-A- - press-out tool T10187
- to press out the ball joint on the wheel carrier.
-B- - spring compressor VW 552
- for slightly tensioning the upper trailing arm.