Wheel Bearing Unit, Servicing

Special tools and workshop equipment required

Press Plate VW401
Press Plate VW402
Press Piece - Multiple UseVW412
Hydraulic Press - Bushing Assembly Tool Kit T10230
Puller - Kukko Separating Tool - Diameter 25-155mm15/3
Puller - Kukko Quick Action Separating Tool - 25-155mm17/3

Wheel Hub, Removing from Wheel Bearing

Fig 1: Identifying Tool Set Up

Courtesy of AUDI OF AMERICA, LLC

Wheel bearing housing is removed. Refer to WHEEL BEARING UNIT, ALL WHEEL DRIVE (AWD), REMOVING AND INSTALLING .

-- Install special tools as shown in illustration.

Press Piece - Multiple UseVW412
Sleeve T10230/3 from the Hydraulic Press - Bushing Assembly Tool Kit T10230
Thrust Piece T10230/8 from the Hydraulic Press - Bushing Assembly Tool Kit T10230
Wheel bearing unit
Press Plate VW402
Press Plate VW401

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

Fig 2: Bearing Inner Race And Spinning Washer

Courtesy of AUDI OF AMERICA, LLC

-- Insert the separating tool between the bearing inner race -1- and the wheel hub -2- and pretension with the spindle.

NOTE:

Use a commercially available separating tool such as the Puller - Kukko Separating Tool - Diameter 25-155mm15/3 with Puller - Kukko Quick Action Separating Tool - 25-155mm17/3.

-- Install special tools as shown in illustration.

Fig 3: Identifying Tool Set Up

Courtesy of AUDI OF AMERICA, LLC

Press Piece - Multiple UseVW412
Sleeve T10230/3 from the Hydraulic Press - Bushing Assembly Tool Kit T10230
Thrust Piece T10230/8 from the Hydraulic Press - Bushing Assembly Tool Kit T10230
Puller - Kukko Separating Tool - Diameter 25-155mm15/3 with Puller - Kukko Quick Action Separating Tool - 25-155mm17/3

-- Press the bearing inner race from the hub.

Pressing Wheel Hub into Wheel Bearing

Fig 4: Avoid Contaminating With Dirt And Damaging Seal When Setting Down/Storing

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Avoid contaminating with dirt and damaging the seal when setting down/storing.

The wheel bearing -1- must always face up.
Always set the wheel bearing unit down on the wheel hub -2-.

Never reach into the inside when lifting the wheel bearing.

Fig 5: Correct & Incorrect Holding Of Wheel Bearing
Courtesy of AUDI OF AMERICA, LLC
Hold the wheel bearing only on the outside.

-- Install special tools as shown in illustration.

Fig 6: Identifying Punch VW 412, Thrust Plate VW 402, Wheel Hub, Ball Bearing & Thrust Plate VW 401

Courtesy of AUDI OF AMERICA, LLC

Press Piece - Multiple UseVW412
Press Plate VW402
Wheel hub
Ball Bearing
Press Plate VW401

NOTE:

The reworked surface on the wheel bearing outer race faces down.

CAUTION:

When setting down or pressing in, make sure there is no dirt or contaminants between the Press Plate VW401 -5- and the ball bearing -4-.

-- Press the wheel hub into the wheel bearing.

-- Install the wheel bearing unit. Refer to WHEEL BEARING UNIT, ALL WHEEL DRIVE (AWD), REMOVING AND INSTALLING .