Installing Rear Anti-Roll Bar

→ Wear personal protective gear.

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

Information 

The anti-roll bar must be positioned before tightening the fastening screws on the anti-roll-bar mount (= rear-axle support). Highest point on anti-roll bar arm to lower edge of longitudinal member, dimension -Z -  .

Dimension -Z-  . → Control value: 96 mm  .

Fig 1: Checking Anti-Roll Bar Dimension Z

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

This ensures that the position of the anti-roll bar in the support corresponds to the normal vehicle position.

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!
  Fig 2: Checking Dimension 1 - Centre Of Wheel To Lower Edge Of Wing (Rear Axle)

  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
• On vehicles with air springs, the respective air spring must be bled using the Porsche System Tester  . → 4301IN BLEEDING AND FILLING THE LEVELLING SYSTEM
• Screws and nuts are Geomet-coated and must not be greased  .

1. Guide in the anti-roll bar and fit and tighten four fastening screws hand-tight uniformly in vehicle position.
2. Fit fastening nuts for the anti-roll bar at the connecting links and tighten hand-tight.
3. Tighten fastening screws and fastening nuts for the anti-roll bar and connecting link to the specified tightening torques.

   Anti-roll bar clamps to chassis subframe: Tightening torque 50 Nm (37 ftlb.) 

   Anti-roll bar to connecting link: Tightening torque 100 Nm (74 ftlb.)