Pressing out and pressing in front wheel bearing with wheel bearing housing fitted — VW

The following description deals with the Audi TT 1999 ä. Therefore differences must be considered, if necessary.

Observe notes => Page
40-54

Special tools and workshop equipment required

40-105 Thrust plate
3283 Remover
3423 Puller
V.A.G 1383 A gearbox lifter with universal mounting V.A.G 1359/2
2 - Kukko 18/0 Puller
V.A.G 1576 Torque wrench
Measuring range: 75...400 Nm

Special tools and workshop equipment required

V.A.G 1389 A/1 Foot pump with high pressure hose

If hand pump V.A.G 1389/1 is already available, this can be converted to a foot pump using:

Conversion kit V.A.G 1389/3.

V.A.G 1459 B Hydraulic wheel bearing removal and installation tool
Hollow piston cylinder HPC- 15 with thrust pad E-0-204-T, hydraulic
Tension bolt E-0-217+218
Special nut E-8-214
Thrust pad E-5
Thrust pad E-10
Thrust pad E-13-1
Thrust sleeve E-65-1
Thrust bolt E-15

V.A.G 1459 B/2 Supplementary set
Housing E-40

Preparing wheel bearing housing for pressing-out procedure

Remove trim cap from light-alloy wheels (puller in vehicle tool kit).
Raise vehicle until front axle is off the ground.
Unfasten 12-point nut.
Remove wheels.

Detach connecting link from suspension strut on both sides of the vehicle.
Pull spring clip out from bracket and detach brake hose.
Detach wire for speed sensor from suspension strut.

Unscrew brake caliper from wheel bearing housing.
Attach braking caliper to mounting with wire.
Detach brake disc (disc is attached to hub with cross-head bolt).
Remove brake disc splash plate.

Unscrew upper nut from ball joint.

Note:

Leave nut a few thread turns on the ball joint to protect the thread.

Position pressing-out tool as illustrated and press out ball joint.

Remove drive shaft.

Ensure sufficient clearance when pressing out drive shaft.

Remove drive shaft from wheel bearing housing and tie it up.

Place gearbox lifter V.A.G 1383/A with universal mount V.A.G 1359/2 underneath (risk of accident caused by parts dropping out when pulling out wheel hub and wheel bearing).

Pulling out wheel hub

Insert thrust bolts - 1- in wheel bearing housing.
Install housing -2- for hollow piston cylinder -3- with tension bolt and special nut -4-.
Pull out wheel hub whilst holding tool.

1 - Thrust bolt E-15
2 - Bell E-40
3 - Hollow piston cylinder HPC-15
4 - Special nut E-8-214 and tension bolt
5 - High pressure hose with quick release coupling

Pulling out wheel bearing

Remove circlip.
Fit thrust pad -1- with collar facing bearing thrust sleeve -2- with the four graduated inside diameters facing wheel bearing housing, hollow piston cylinder -3- with tension bolt and special nut -4-.
Pull out wheel bearing by actuating pump.

1 - Thrust pad E-5
2 - Thrust sleeve E-65-1
3 - Hollow piston cylinder HPC-15
4 - Special nut E-8-214 and tension bolt

Detach bearing inner race from hub

Insert special tool -3423- as shown.
Screw cross-piece Kukko -18-0- into special tool
-3423-.
Mount special tool -40-105- on wheel hub and pull off bearing inner race by turning threaded stem.

Install wheel bearing

Fig.3
Coat entire surface of hole in wheel bearing housing with Molypaste (AOS 115 000 01).

Note:

Pad containing 3 g of grease is included with wheel bearing set.

Pressing in wheel bearing

Position wheel bearing -1-, thrust piece -2-, (insert collar in bearing) and hollow piston cylinder -3-, with tension bolt at wheel bearing housing.
Fit thrust piece -4- with broad collar facing wheel bearing housing and special nut -5- from inside.
Press in wheel bearing by actuating pump.
Use pointed nose pliers to insert circlip.

1 - Wheel bearing
2 - Thrust piece E-13-1
3 - Hollow piston cylinder HPC-15
4 - Thrust pad E-10
5 - Special nut E-8-214 and tension bolt

Pressing in wheel hub

Position wheel hub -1- and hollow piston cylinder -2- with tension bolt at wheel bearing.
Fit special nut -4- and thrust piece -3- with collar facing special nut from inside.
Press in wheel bearing by actuating pump.

1 - Wheel hub
2 - Hollow piston cylinder HPC-15
3 - Thrust pad E-5
4 - Special nut E-8-214 and tension bolt

Pay special attention to the following on installation:

Notes => Page
40-54

Clean inner splines of wheel hub.

Screw on new 12-point nut as far as possible.

Tighten brake caliper at wheel bearing housing.

=> Brake System; Repair group 46; Servicing front wheel brake
Brake System
Servicing front wheel brake

Attach connecting link to suspension strut with new nut.
Lower vehicle; make sure that wheels do not yet touch ground.

Otherwise, wheel bearing could be damaged.

Press brake (second mechanic required).
Tighten 12-point nut.