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.
Pre-tension the coil spring using a spring clamp for spring struts Nr.121 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 when loosening the nut. Tools required: Brace 9630 or 7-mm Allen key.

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