Installing Front Anti-Roll Bar

→ 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! 
  Fig 1: Identifying Dimension 1 - Centre Of Wheel To Lower Edge Of Wing (Front 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
• Vehicle position can be set by carefully raising the relevant wheel bearing housing. 
• Use an intermediate layer (hard rubber)! Do not damage the brake cover plate. 
  Fig 2: Lifting Wheel Carrier (Example Without Wheel And Brake Disc)

  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
• Screws and nuts are Geomet-coated and must not be greased. 
• Grease the splines of the drive shaft slightly with aluminum paste Optimoly TA. 
• Drive shafts must not be left hanging from the joint stop! Tie them up. 

1. Install anti-roll-bar mount according to the marking, along with the anti-roll bar.

   The marking -IN-  must be pointing to the center of the vehicle, while the marking -OUT-  must be pointing to the outside of the vehicle.

   Fig 3: Identifying Marking On Anti-Roll-Bar Mount

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Tighten fastening nuts -1-  on the suspension/stabilizer on both sides of the vehicle. Tightening torque 100 Nm (74 ftlb.) 
   Fig 4: Identifying Suspension/Stabilizer Mounting Nut

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Position the anti-roll bar before tightening the fastening screws on the anti-roll-bar mount (= fastening screws for front-axle support) so that the highest point of the anti-roll bar is positioned at a distance from the frame support (not  the fold!) of -1-  .

   Dimension -1-  is → Control value: 93 mm 

   Installation dimension of anti-roll bar