Installing Front-Axle Carrier

→ Wear personal protective gear.

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

→ Avoid contact with caustic fluid.

→ Wear personal protective gear.

→ Ensure that there is good ventilation.

→ If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.

→ Do not spill fluids.

→ In the event of contact, wash the component or surface with water.

→ Replace components that are already damaged.

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. 

Information 

Working with steel flexi-pipes

• Steel flexi-pipes are particularly prone to kinking and pinching. 
• Be particularly careful with steel flexi-pipes during removal, storage and reinstallation. 
• Mark the installation position of the pipe with a paint marker during removal. 
• Steel flexi-pipes must never be installed twisted. 

Installation is performed in reverse order.

Front-axle support to front crash support: Tightening torque 90 Nm (67 ftlb.) +180° 

Front-axle support to rear crash support: Tightening torque 90 Nm (67 ftlb.) +90° 

Front-axle carrier to body at front: Tightening torque 90 Nm (67 ftlb.) +90° 

Front-axle carrier to body at rear: Tightening torque 90 Nm (67 ftlb.) +90° 

Spring strut to lower trailing arm: Tightening torque 90 Nm (67 ftlb.) +120° 

Brake calliper to wheel bearing housing: Tightening torque 140 Nm (104 ftlb.) 

Lower trailing arm to wheel bearing housing: Tightening torque 85 Nm (63 ftlb.) 

Upper trailing arm to wheel bearing housing: Tightening torque 85 Nm (63 ftlb.) 

Steel flexi-pipes to front axle valve block: Tightening torque 28 Nm (21 ftlb.) 

Fit mounting element for front power-steering pressure line holder while carefully guiding the elevating platform into position.

Secure the upper trailing arms using the spring compressor VW 552  before removing the elevating platform.