Replacing Bearing For Rear Axle

→ Avoid small bending radii when routing lines.

→ File down edges and burrs in the routing area or mask them with adhesive tape.

→ Maintain a sufficient distance from components exposed to high temperatures while driving.

For vehicles with PDCC (Porsche Dynamic Chassis Control)

→ Wear personal protective gear.

→ Get someone to help if necessary.

• The vehicle only moves if the engine is running.

1. Move the gear support → Supporting chassis subframe (ORS anti-roll bar shown)  under the center of the chassis subframe and lift it carefully using a suitable base (e.g. hard rubber support).
   Fig 1: Supporting Chassis Subframe (ORS Anti-Roll Bar)

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. For vehicles with PDCC: Unclip the lines from the holders on the body so that there is sufficient clearance at the lines for lowering the chassis subframe.

   Information 

   Front rear-axle bearings: The cardan shaft must not touch the mounting face when lowering the suspension subframe! -Arrow- 

   Fig 2: Checking Clearance For Cardan Shaft

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Loosen the threaded joint on the bearing and carefully lower the gear support until there is sufficient clearance for using the tool.
4. Press out chassis subframe bearing.
   Fig 3: Identifying Tools For Pressing Out RA Chassis Subframe

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   CAUTION: Heavy components

   • Risk of squashing

   → Wear personal protective gear.

   → Get someone to help if necessary.

   Information 

   Hold the hydraulic cylinder VAS 6178 tightly while pressing it out.

5. Attach the tools as shown in the illustration and press out the bearing.
   Fig 4: Pressing Out RA Bearing - Chassis Subframe

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Information 

   When inserting the bearing, make sure that the rubber cushion is pointing in the direction of travel in the transverse direction.

6. Check the chassis subframe installation position (rubber cushion -arrows-  ).
   Fig 5: Identifying Chassis Subframe Installation Position

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
7. To avoid damaging the bearing, the maximum → Pressure: 60 kN+/-5 kN  must not be exceeded at the stop (60 KN = 200 bar). This conversion applies only to the hydraulic cylinder VAS 6178. The conversion depends on the diameter of the cylinder in question. Assembly fixture T10301 Porsche supplement set T10301/20 

   Information 

   The nut -2-  must be locked with the contact surface on the press-in plate -7-  ! The press-in plate -7-  must be positioned perfectly on the bearing sleeve on the chassis subframe. (Get another worker to help if necessary!)! This prevents the bearing from being drawn in at an incorrect angle.

   Fig 6: Pressing In RA Bearing

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
8. Connect the tools together as shown in the illustration. Press the bearing in carefully.

   Information 

   Observe correct tightening torques.

9. Carefully lift the chassis subframe until the installation position is reached. Fit the threaded joint on the chassis subframe bearing.
10. For vehicles with PDCC: Clip the lines into the holders on the body. → 4303AW SAFETY REQUIREMENTS FOR PORSCHE DYNAMIC CHASSIS CONTROL (PDCC)