Installing front air-spring strut

→ Wear personal protective gear.

→ Do not raise the wheel suspension higher than the normal vehicle position (vehicle resting on wheels).

Information 

• All screws and threaded joints on the axle must be tightened in vehicle position. Vehicle position means: vehicle standing on its wheels or the wheel suspension is raised with a universal vehicle lift. Dimension -1-  , from lower edge of wing to center of axle corresponds to vehicle position. The current height can be found in →  4495TW ADJUSTMENT VALUES FOR SUSPENSION ALIGNMENT  . Always observe the following points! 

  Courtesy of PORSCHE CARS NORTH AMERICA, INC.

• Screws and nuts are Geomet-coated and must not be greased  .

Information 

When fitting the upper trailing arms to the wheel bearing housing, the pins of the upper trailing arms must be pressed fully into the bores on the wheel bearing housing.

1. Installation is performed in reverse order.

   Observe specified tightening torques:

   Mounting saddle to air-spring strut: Tightening torque 30 Nm (22 ft. lb.) 

   Upper air-spring strut to body: Initial tightening 40 Nm (30 ft. lb.) Final tightening +90° 

   Observe the tightening sequence -1 to 4-  !

   Upper trailing arm to wheel bearing housing: Tightening torque 45 Nm (33 ft. lb.) 

   Air line to air spring: Tightening torque 3 Nm (2 ft. lb.) 

Fig 1: Mounting Saddle To Body Screws Tightening Sequence

Courtesy of PORSCHE CARS NORTH AMERICA, INC.