Removing Front Wheel Bearing

→ Read specific safety information for the press.

→ Check that the press is working perfectly before use, particularly the safety components.

The wheel bearing must not come into contact with magnetic objects (e.g., magnetic screwdriver, magnet).

Fig 1: Overview Of Front Axle Wheel Bearing

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. -1-  - Wheel hub  Carry out a close visual inspection of the seat of the wheel bearing. No grooving, scoring or similar deformation is permitted!
2. -2-  - M8 screws 
3. -3-  - Cover 
4. -4-  - The wheel bearing  can no longer be used after it has been removed. Do not press on the wheel bearing inner race when installing (pressing in). Insert new wheel bearing with the magnetic multipole ring facing the inside of the wheel bearing housing (towards the speed sensor). Check the magnetic side using a test card Nr.147-2  or a paper clip. Do not use magnets or screw drivers to check!
5. -5-  - Wheel bearing housing  Carry out a close visual inspection of the seat of the wheel bearing. No grooving, scoring or similar deformation is permitted!

1. Press out wheel hub. 
   1. 1.1. Insert the wheel bearing housing, with the wheel hub -3-  facing down, into the hydraulic press. Use holding rails VW 457 -1-  as a countering device.

      Ensure that the cover of the wheel bearing with the circular areas is lying flat  on the holding rails -1- -arrows-  and that the wheel hub -3-  can extend downwards freely.

      Fig 2: Pressing Wheel Hub

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 1.2. Press the -3-  wheel hub out carefully using a press-out mandrel P 297a -2-  .

      Hold the wheel hub -3-  from below to prevent if falling out (second fitter required).

2. Remove the wheel bearing cover (M8 screws).
3. Press out the wheel bearing. 
   1. 3.1. Place pipe T10205/5 -2-  under the workshop press and put the wheel bearing housing on top.

      Centre the press-on sleeve 9694/3 -1-  on the wheel bearing.

      Fig 3: Pressing Wheel Bearing

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 3.2. Carefully press out the wheel bearing -direction arrow-  .

      Information 

      To press out the inner bearing race of the old wheel bearing, pull the inner bearing race several millimeters off the wheel hub using a two-claw puller so that the separator can be put into place. To do this, use a two-claw puller together with a pressure piece VW 433  , for example.

4. Press the wheel bearing inner race out of the wheel hub using the tool -1 and 2-. 
   Fig 4: Identifying Separating Device And Pressure Piece

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   1. 4.1. Position the separating device Nr.111 -2-  under the wheel bearing inner race -1-  and tighten evenly using open-ended wrench -4-  . Take care not to damage the -3-  wheel hub.
      Fig 5: Pressing Wheel Bearing Inner Race

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 4.2. Using the pressure piece VW 454 -arrow-  , carefully push the wheel hub through the wheel bearing inner race -1-  . Hold the wheel hub from below (second fitter required).
      Fig 6: Pressing Wheel Bearing Inner Race

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.