Wheel Bearing Unit, Servicing

Special tools and workshop equipment required 

• Press Plate:VW401 
  Fig 1: Press Plate

  Courtesy of AUDI
• Press Plate:VW402 
  Fig 2: Press Plate VW402

  Courtesy of AUDI
• Press Piece - Multiple Use:VW412 
  Fig 3: Identifying Press Piece - Multiple Use VW412

  Courtesy of AUDI
• Hydraulic Press - Bushing Assembly Tool Kit :T10230 
  Fig 4: Identifying Hydraulic Press - Bushing Assembly Tool Kit T10230

  Courtesy of AUDI
• Pneumatic Hydraulic Press:VAS 6654  , not illustrated
• Bearing Puller Set:VAS 701 003  , not illustrated

Procedure

• Wheel bearing unit is removed. Refer to WHEEL BEARING UNIT, REMOVING AND INSTALLING .

Wheel Hub, Removing from Wheel Bearing

Fig 5: Identifying Tool Set Up

Courtesy of AUDI

-- Arrange the special tools as shown.

1. Press Piece - Multiple Use:VW412 
2. Hydraulic Press - Bushing Assembly Tool Kit - Sleeve:T10230/3 
3. Hydraulic Press - Bushing Assembly Tool Kit - Thrust Piece:T10230/8 
4. Wheel Bearing Unit
5. Press Plate:VW402 
6. Press Plate:VW401 

-- Press the wheel hub out of the wheel bearing.

Bearing Inner Race, Removing from Wheel Hub

Fig 6: Bearing Inner Race Remover Tools

Courtesy of AUDI

-- Prepare the puller from the Puller Set:VAS 701 003  as follows.

-- Install the Puller Set - Clamping Sleeve:VAS 701 003/1  on the Puller Set - Clamping Pliers, Diameter 66-70 mm:VAS 701 003/7  .

-- Install the Puller Set - Threaded Spindle:VAS 701 003/2  in the adapter sleeve and attach the Puller Set - Thrust Piece:VAS 701 003/3  .

Bearing Inner Race Version 1:

Fig 7: Place Puller On Ball-Cage

Courtesy of AUDI

-- Remove the ball-cage assembly from the bearing inner race -2-.

-- Place the puller -1- as shown on the ball bearing race -arrow- of the bearing inner race.

Bearing Inner Race Version 2:

Fig 8: Place Puller On Ball-Cage

Courtesy of AUDI

-- Place the puller -1- on the groove -arrow- of the bearing inner race -2-.

Continuation for All Versions:

Fig 9: Clamp The Puller On The Bearing Inner Race -2-

Courtesy of AUDI

-- Clamp the puller on the bearing inner race -2- by turning the Puller Set - Clamping Pliers, Diameter 66-70 mm:VAS 701 003/7  with the Puller Set - Special Ring Spanner AF36:VAS 701 003/5  in the direction of -arrow- and counterhold the Puller Set - Clamping Sleeve:VAS 701 003/1  with the Puller Set - Clamping Handle:VAS 701 003/4  .

-- Remove the bearing inner race with the Puller Set - Threaded Spindle:VAS 701 003/2  from the wheel hub -1-.

Wheel Hub, Pressing in Wheel Bearing

Fig 10: Identifying Punch VW 412, Thrust Plate VW 402, Wheel Hub, Ball Bearing & Thrust Plate VW 401

Courtesy of AUDI

Handling the wheel bearing. Refer to Fig 11.

Fig 11: Always Set Wheel Bearing Down On Wheel Hub -2- (Wheel Bearing -1- Fac ing Up)

Courtesy of AUDI

-- Arrange the special tools as shown.

1. Press Piece - Multiple Use:VW412 
2. Press Plate:VW402 
3. Wheel Hub
4. Wheel Bearing
5. Press Plate:VW401 

• The reworked surface of the wheel bearing outer race faces down.

-- Press the wheel hub into the wheel bearing.

-- Install the wheel bearing unit. Refer to WHEEL BEARING UNIT, REMOVING AND INSTALLING .