Replacing Rear Anti-Roll Bar

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Remove rear anti-roll bar (anti-roll bar assembly with clamps and anti-roll-bar mount).
→ 429019 REMOVING AND INSTALLING REAR ANTI-ROLL BAR (WITH PDCC) .
Remove anti-roll-bar mount and clamps from the anti-roll bar.
Check the following while doing this:
1. 2.1. Mark the position of the anti-roll-bar mount on the anti-roll bar. Apply the same markings (for both anti-roll-bar mounts) onto the new anti-roll bar.
  
  Fig 1: Identifying Anti-Roll Bar Marking
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 2.2. Loosen anti-roll-bar mount and clamps from the anti-roll bar.
3. 2.3. Check anti-roll-bar mount for damage (e.g. cracks) and replace if necessary.
Fitting anti-roll-bar mount and clamps to anti-roll bar
1. 3.1. Place anti-roll-bar mount against anti-roll bar as per the markings.
  
  Fig 2: Identifying Anti-Roll-Bar Mount Position
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 3.2. Position anti-roll-bar clamps on the anti-roll-bar mounts.
  Fit anti-roll bar with anti-roll-bar-mounts and clamps -1- on the rear axle cross member.
  
  To do so, use suitably long screws -2- (approx. 20 millimetres longer than standard screws) .
  
  Get a second mechanic to help perform this step.
  
  Fig 3: Identifying Anti-Roll Bar Clamps
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. 3.3. Tighten screws uniformly. Make sure that the anti-roll-bar mount is not twisted.
  The opening of the anti-roll-bar mount -arrow- must rest against the rear axle cross member.
  
  Fig 4: Locating Anti-Roll-Bar Mount Opening
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
4. 3.4. Once the anti-roll bar clamp is in contact with the rear axle cross member, carefully loosen the screws. Make sure that the anti-roll-bar mount does not slip out of the clamp while loosening the screws.
5. 3.5. Repeat steps on the other side (fit the second mount).
Install complete anti-roll bar (with anti-roll-bar mount and clamps) using the standard screws.

Fig 5: Identifying Rear Axle Cross Member Anti-Roll Bar Screws
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
1. 4.1. Screw two anti-roll bar clamps -1 and 2- to the rear axle cross member (using standard screws).
  Tighten screws -3- to Tightening torque 65 Nm (48 ftlb.) .
  
  Tools: Open-end/ring wrench insert Nr.98-1 Pos.1 .
2. 4.2. Fit the PDCC actuator to the anti-roll bar on both sides of the vehicle. Use new collar nuts.
  Initial tightening 50 Nm (37 ftlb.) Final tightening +50° .