Install The Front Wheel Bearing

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2019 Porsche 911, 2018 Porsche 911, 2017 Porsche 911, 2016 Porsche 911, and 2015 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

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 wheel bearing has a magnetized multipole seal, which acts as a pulse sender for the wheel speed sensor.
The multiple-pole seal -1- must always face upwards when the wheel bearing is set down (this does not apply when pressing the wheel hub into the wheel bearing). Do not damage the multipole seal and do not come into contact with magnetic objects (e.g. magnetized screwdriver, magnet).

Fig 1: Identifying Wheel Bearing Unit
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Press the wheel hub into the wheel bearing.
1. Plunger
2. Pressure plate VW 402
3. Wheel hub
4. Wheel bearing
5. Pressure plate VW 401
  
  Fig 2: Pressing Wheel Hub
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
1. 1.1. Fit the special tools as shown in the graphic → Press the wheel hub into the wheel bearing .
2. 1.2. Press the wheel hub into the wheel bearing.
Insert the tension bolt -2- in the wheel bearing -4- with the wheel hub -3- and tighten the new hexagon nut -1- hand-tight.

Fig 3: Installing Tension Bolt
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Install the wheel bearing in the wheel bearing housing.
1. 3.1. Insert the wheel bearing in the wheel bearing housing.
  WARNING:
  Incorrect handling of safety bolts
  - Danger of injury
  - Loss of torque
  → Always use new fastening screws and nuts following removal.
  
  → Observe specified tightening torques.
  
  → Carry out a visual inspection of all re-used parts.
2. 3.2. Tighten the fastening screws in the sequence -1, 2, 3, 4- . Initial tightening 80 Nm (59 ftlb.) Final tightening +120°
  
  Fig 4: Tightening Wheel Bearing Fastening Screws
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. 3.3. Tighten the fastening screw -3- securing the holder -2- to the wheel bearing housing. Tightening torque 10 Nm (7.5 ftlb.)
4. 3.4. Clip the electric line -1- onto the holder.
  
  Fig 5: Installing Brake Line Holder Onto Wheel Bearing Housing
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.