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Home >> Porsche >> 2021 >> Taycan Base >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> 42 Rear Wheel Suspension Drive Shaft 2.0L -- Y1A - TAYCAN (Y1A) >> WM, 425855 Replacing Rear Wheel Bearing >> Replacing Rear Wheel Bearing

Replacing Rear Wheel Bearing

WARNING: Mechanical, hydraulic or pneumatic press 
  • Risk of squashing 

    → Read specific safety information for the press.

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

Information 

The following tool sets are required for replacing the wheel bearing:

Fig 1: Overview Of Rear Axle Wheel Bearing Components Location
G15552985Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Component overview rear axle wheel bearing

1  Wheel hub
2  Hexagon-head bolt, M8 x 35 > Tightening torque 20 Nm (15 ftlb.)  > Torque angle + 90 ° 
3  Mounting plate
4  Wheel bearing
5  wheel bearing housing
6  Ball-joint bearing, see

> 421755 REPLACING BEARING FOR TRAILING ARM (WHEEL BEARING HOUSING) 

WARNING: Danger of objects or loads falling down 
  • Risk of squashing or crushing 

    → Secure components to prevent them from falling down.

Information 

Tighten separating device only as far as required so that the wheel hub is not damaged!

Information 

The help of another person is required.

  1. Press out the wheel hub.
    G15552986Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Pressing out wheel hub

    1  Workshop press ram
    2  > VW454 - Pressure piece 
    3  wheel bearing housing
    4  > VAS 251 413 - Separating device 
    1. 1.1  Get the person helping you to secure the wheel hub while it is pressed out.
    2. 1.2  > VAS 251 413 - Separating device-4-  must be aligned between the wheel hub and wheel bearing housing -3-  in such a way that all screws on the mounting plate are flat against the jaws of the separating device -4-  .
    3. 1.3  Insert wheel bearing housing -3-  with > VAS 251 413 - separating device-4-  into the workshop press as shown in -Illustration-  .
    4. 1.4  > VW454 - Pressure piece-2-  must be aligned with the wheel hub.
    5. 1.5  Press out the wheel hub.
  2. Remove -1-  mounting plate.
    G15552987Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Mounting plate on wheel bearing housing

    1. 2.1  Unscrew screws -2-  .
    2. 2.2  Remove mounting plate -1-  .
  3. Press out the wheel bearing.
    G15552988Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Pressing out wheel bearing

    1  > 9694/3 - Press-on sleeve 
    2  > T10205A - Attachments Used: T10205/5 
    1. 3.1  Fit wheel bearing housing on the attachment T10205/5 -2-  in such a way that the wheel bearing can be pressed out into the attachment T10205/5 -2-  .
    2. 3.2  Align > 9694/3 - press-on sleeve-1-  with the wheel bearing outer ring.
    3. 3.3  Press out the wheel bearing.

      Information 

      The help of another person is required.

  4. Press out wheel bearing inner ring.
    G15552989Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Pressing out wheel bearing inner ring

    1  Workshop press ram
    2  > VW454 - Pressure piece 
    3  Wheel bearing inner ring
    4  > VAS 251 413 - Separating device 
    5  Wheel hub
    1. 4.1  Get the person helping you to secure the wheel hub -5-  to prevent it from falling.
    2. 4.2  > VAS 251 413 - Separating device-4-  must be tightened carefully under the wheel bearing inner ring -3-  .
    3. 4.3  Insert wheel hub -5-  with > VAS 251 413 - separating device-4-  into the workshop press as shown in -Illustration-  .
    4. 4.4  > VW454 - Pressure piece-2-  must be aligned with the wheel hub -5-  .
    5. 4.5  Press out wheel bearing inner ring -3-  .

      Information 

      • The multipole seal on the wheel bearing must not come into contact with highly magnetic tools  .
      • Installing the wheel bearing: The magnetic side must be facing the speed sensor (inside of wheel bearing housing)  .
      • Use the  > T10473 - sensor gauge or a paper clip to find the magnetic side  .
  5. Press in the wheel bearing.
    G15552990Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Tools for wheel bearing

    1  Sleeve T10230/14 from > T10230/14-16 - supplement set 
    2  Pressure plate T10205/10 from > T10205A - attachments 
    1. 5.1  Heat wheel bearing housing -1-  to 80 °C using heating plate -2-  .
      G15552991Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Heating wheel bearing housing (example)

    2. 5.2  Align wheel bearing housing -1-  with sleeve T10230/14  .
    3. 5.3  Align the wheel bearing on the wheel bearing housing -1-  in such a way that the magnetic ring is facing downwards.
    4. 5.4  Fit pressure plate T10205/10  so that it is flush on the wheel bearing.
      G15552992Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Pressing in the wheel bearing

    5. 5.5  Press the wheel bearing in as far as it will go (check pressure gauge:  When the pressure increases rapidly, the wheel bearing is in installation position).
  6. Install mounting plate -1-  .
    G15552993Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Mounting plate on wheel bearing housing

    1. 6.1  Position mounting plate -1-  .
    2. 6.2  Tighten new  screws -2-  . > Tightening torque 20 Nm (15 ftlb.)  > Torque angle + 90 ° 
  7. Press in wheel hub.
    G15552994Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Pressing in wheel hub

    1  Workshop press ram
    2  T10205/10 pressure plate 
    3  Wheel hub
    4  wheel bearing housing
    5  > 9694/3 - Press-on sleeve 
    1. 7.1  Align the wheel bearing housing -4-  with the > 9694/3 - press-on sleeve  in such a way that the press-on sleeve is flush with the wheel bearing inner ring.
    2. 7.2  Align wheel hub -3-  with the wheel bearing housing -4-  .
    3. 7.3  Align pressure plate T10205/10 -2-  with the wheel hub -3-  .
    4. 7.4  Press the wheel hub -3-  in as far as it will go (check pressure gauge:  When the pressure increases rapidly, the wheel hub -3-  is in installation position).
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