Disassembling Front Spring Strut

To prevent damage (deformation), clamp the spring strut in a suitable clamping block (tensioning device for McPherson spring struts). Alternatively, the spring clamp can also be held in a retaining device.
Pretension the coil spring using spring clamp Nr.121 Pos.1 until the piston rod is relieved (not generally required as this depends on the installation pretension on the coil spring). The appropriate forks must be inserted into the spring clamp.
Use a socket-wrench insert Nr.187 to loosen the lock nut (securing piston rod to spring-strut mount).
Counter at the piston rod (7-mm hexagon socket) while loosening.

Fig 1: Identifying Socket-Wrench Insert No. 187
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Remove all parts from the piston rod.