Assembling Rear Spring Strut

→ Do not reach into the danger area  .

→ Relieve the tension on components before starting work  .

→ Secure components to prevent them from loosening suddenly  .

• When installing new components, always check that they are assigned correctly  .
• Coil springs are only available in pairs  .

1. Prepare parts for assembly.
2. Clamp the spring strut in a suitable clamping block (tensioning device for spring struts). Alternatively, the spring clamp can also be held in a retaining device.
3. Slide the bellows/additional spring assembly onto the piston rod.
4. Push the pre-tensioned coil spring onto the vibration damper so that the end of the coil spring rests against the stop of the spring plate. Fit the stop plate -7-  at the correct position.

   If you are using new coil springs, observe centering ring allocation.

   Fig 1: Compressing Rear Axle Spring/Stop Plate

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Information 

   • Coil spring marking -1- comprising two different colored lines (e.g. one red and one brown line) indicates the spring rate and spring length (depending on vehicle variant and equipment)  .
   • A marking -2- comprising one colored line indicates the coil spring tolerance group (load group) and determines the thickness of the centering ring -arrows- (tolerance compensation). The colored line -2- is either YELLOW or BLUE  .
   • If you are installing new coil springs, then order the 3 mm and 6 mm centering rings at the same time. As coil springs of load group 1 or 2 will be supplied, you will then have the correct centering rings for installation (for tolerance compensation)  .
     Fig 2: Identifying Coil Spring Color Marking

     Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   • Yellow colored line -2- = use 3-mm centering ring  . Blue colored line -2- = use 6-mm centering ring  .
     Fig 3: Identifying Centering Ring

     Courtesy of PORSCHE CARS NORTH AMERICA, INC.
5. Fit spring plate with centering ring (compensation part) and spring-strut mount. Position the centering ring correctly. The cut-outs in the centering ring must be positioned between the collars of the three fastening pins -arrows-  .
   Fig 4: Locating Support Ring Fastening Pins

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
6. Position the spring-strut mount.
   1. 6.1. Fit stop plate at the correct position (domed side upwards) and screw a new lock nut onto the piston rod (do not tighten fully yet).
   2. 6.2. The spring-strut mount is positioned correctly if the fastening pin -2-  (on the sloping supporting mount part) is at an angle of 180 degrees from the bar -1-  (on the vibration damper).
      Fig 5: Positioning Spring-Strut Supporting Mount

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
7. Tighten lock nut on the piston rod.

   Use socket-wrench insert 9630/2  for tightening the lock nut.

   When tightening the nut, counter at the piston rod hexagon using a suitable wrench.

   Tightening torque 70 Nm +5 Nm 

   Fig 6: Assembling Spring Strut

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.