Installing Lower Trailing Arm

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Dimension 1 - centre of wheel to lower edge of wing (rear axle shown)

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. Measurement -1-  from the lower edge of the wing to the middle of the vehicle axle corresponds to vehicle position. The current height values can be found in

  > 4495TW ADJUSTMENT VALUES FOR SUSPENSION ALIGNMENT

  Always observe the following points! 

• On vehicles with air springs, the respective air spring must be bled using the Porsche System Tester. 

  > WM, 4301IN BLEEDING AND FILLING THE LEVELLING SYSTEM

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

1. Insert the lower trailing arm into the mountings.
2. Insert and fit the front fastening screw -1-  into the rear axle housing -3-  and trailing arm -2-  . > Initial tightening 150 Nm (110.6 ftlb.)  -- > Final tightening + 90  ° --

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Front fastening screw

3. Insert the eccentric screw -1-  for the trailing arm -2-  into the rear axle housing -3-  . > Tightening torque 170 Nm (125.4 ftlb.)  --

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Eccentric screw for trailing arm

4. When inserting the eccentric screw -1-  , make sure that the markings -A-  on the rear axle carrier -2-  and eccentric screw are aligned.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Marking for eccentric screw

5. Fit eccentric screw.
6. Insert and fit the fastening screw -1-  used to secure the trailing arm -2-  to the wheel bearing housing -3-  . > Initial tightening 150 Nm (110.6 ftlb.)  -- > Final tightening + 90  ° --

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Fastening screw on wheel bearing housing