Installing Rear Spring Strut

The rear spring strut can only be removed and installed together with the wheel carrier.

Install spring strut with wheel carrier
1. 1.1. Insert spring strut into the wheel carrier.
2. 1.2. Align the spring strut in such a way that the threaded pin -1- next to the piston rod -2- is flush with the shock-absorber pipe clamp -3- .
  
  Fig 1: Aligning Spring Strut With Wheel Carrier
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. 1.3. Insert connecting link (suspension/stabilizer) -3- and screw on (do not tighten) fastening nut -5- .
  
  Fig 2: Inserting Connecting Link (Suspension/Stabilizer)
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
4. 1.4. Insert clamping screw -2- and screw on (do not tighten) fastening nut -6- .
5. 1.5. Move spring strut in the wheel housing into the installation position and screw on and tighten the three fastening nuts -1- on the upper spring-strut mount.
  Tightening torque 33 Nm
  
  Fig 3: Identifying Upper Spring Strut Fastening Nuts
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Fit drive shaft on the wheel carrier.
1. 2.1. Check the drive shaft.
  Check the following before installing the drive shaft:
  
  Check inner/outer bellows and replace if necessary.
  
  Grease the drive shaft toothing with Optimoly HT .
2. 2.2. Insert the drive shaft into the wheel carrier and screw on the axle nut (drive-shaft bolt on wheel bearing housing).
Install toe control arm and trailing arm.
1. 3.1. Fit toe control arm -2- and trailing arm -5- on the wheel carrier and screw on and tighten fastening nut -1- and fastening screw -4- .
  Fastening nut on toe control arm: Tightening torque 85 Nm (63 ftlb.)
  
  Fastening screw on trailing arm: Tightening torque 120 Nm (89 ftlb.)
  
  Fig 4: Securing Toe Control Arm And Trailing Arm
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  
  Information
  
  Only for GT4 vehicles:
  
  Fit connecting links (suspension/stabilizer) in the central position on the anti-roll bar
  
  Fig 5: Locating Suspension/Stabilizer On Anti-Roll Bar
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Secure the anti-roll bar.
1. 4.1. Insert connecting link -2- into the anti-roll bar and screw on and tighten fastening nut -1- .
  Initial tightening 40 Nm (30 ftlb.) Final tightening +30°
  
  Fig 6: Identifying Anti-Roll Bar And Fastening Nut
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Tighten fastening screws securing spring strut to wheel carrier.

Fig 7: Securing Spring Strut To Wheel Carrier
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
1. 5.1. Loosen fastening nuts -5 and 6- .
2. 5.2. Insert spring strut as far as it will go (do not twist!) into the wheel carrier.
3. 5.3. Tighten fastening nut -5- .
  Counter the hexagon wrench face of the connecting link -arrow- when tightening the fastening nut.
  
  Initial tightening 50 Nm (37 ftlb.) Final tightening +180°
4. 5.4. Tighten fastening nut -6- .
  Initial tightening 50 Nm (37 ftlb.) Final tightening +180°
Install rear brake calliper with line bracket.
Information
- Replace brake calliper fastening screws each time they are removed .
1. 6.1. Fit brake calliper together with the holder and screw in and tighten new brake calliper fastening screws -arrows- .
  Tightening torque 85 Nm (63 ftlb.)
  
  Fig 8: Locating Brake Calliper Fastening Screws
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 6.2. Screw in and tighten fastening screws -6- securing holder to wheel carrier. Tightening torque 10 Nm (7.5 ftlb.)
  
  Fig 9: Identifying Wheel Carrier Holder Components
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. 6.3. Plug in and lock electric plug connection on the RPM sensor -3- .
4. 6.4. Plug in and lock electric plug connection for PASM -4- and clip in cable retainer -5- at the holder -7- .
5. 6.5. Plug in and lock electric plug connection for electric parking brake (EPB) -1- and clip the line into the cable retainer -2- .
Install brake air spoiler.
Brake air spoiler to trailing arm: Tightening torque 10 Nm (7.5 ftlb.)