Replacing Bearings For Carrier, Rear Front Axle

Information 

If a suspension subframe bearing is replaced, the other bearings must also be checked for cracks or other signs of damage.

Information 

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

1. Engage the spindle on the eyelet at the side of the engine transverse bar at which you want to replace the bearing. Guide the spindle through the lower trailing arm and tighten the spindle slightly so that the spindle is slightly tensioned.
2. Loosen front-axle bearings on both sides. Loosen the spindle carefully until there is sufficient clearance for using the press-out tool.
3. The following pressure pieces are required for pressing out. > Pressure pieces for pressing out rear bearing 

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Pressure pieces for pressing out rear bearing

4. Attach pressure pieces as shown in the picture and press out the bearing. > Pressing out rear bearing 

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Pressing out rear bearing

   Fit front-axle bearing and check installation position. > Marking for front-axle bearing 

   Information 

   When replacing bearings, please make sure that one arrow is pointing in the direction of travel while the other arrow is pointing away from the direction of travel.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Marking for front-axle bearing

5. The following pressure pieces are required for pressing in. > Pressure pieces for pressing in rear bearing 

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Pressure pieces for pressing in rear bearing

6. Connect pressure pieces as shown in the picture. > Pressing in rear bearing  To avoid damaging the bearing, the maximum > Pressure 10 kN +/- 5 Sekunde  -- must not be exceeded at the stop (10 KN = 350 bar). This conversion applies only to the hydraulic cylinder VAS 6178. The conversion depends on the diameter of the cylinder in question.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Pressing in rear bearing

   Information 

   Observe correct tightening torques.

7. Carefully lift the front-axle carrier until the installation position is reached. Fit threaded joint on chassis subframe bearing. > Initial tightening 120 (89 ftlb.) Nm  -- > Final tightening + 180°  --
8. Remove the spindle.