1996 AUDI A4 brake

42-8

Rear axle, removing and installing


Removing

Vehicle must be standing on its wheels
above vehicle lift

Repair Manual, Brake System, Repair Group 47
- Remove wheel trim.
On light alloy wheels use puller in vehicle tool kit to remove trim cap
- Raise vehicle.
- Extract brake fluid from reservoir:
- Remove wheels.

- Remove cover (arrows).
Pa
ge 10 of 26 Rear axle, servicin
g (front-wheel-drive vehicles
)
11/20/2002 htt
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e=re
pair&id=AUDI.B5.SU01.42.1

42-9


- Unbolt heat shield cover (arrows indicate bolted connections) and push
forward until parking brake cable adjuster becomes accessible.

- Loosen both cable adjusters as follows:
- Remove locking clip -D-.
- Screw in adjusting nut -C- up to stop.
- Push adjuster together.
Pa
ge 11 of 26 Rear axle, servicin
g (front-wheel-drive vehicles
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU01.42.1

42-10


- Remove locking plates -1- on left and right-sides, slightly loosen bolts -
2- for cable retaining plate, and remove cables from axle beam.

- Disconnect brake lines at rear axle (arrow) on both sides.
Pa
ge 12 of 26 Rear axle, servicin
g (front-wheel-drive vehicles
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU01.42.1

42-12

Installing

- Install axle together with guide bushings into
mounting brackets and install bolts hand-tight.

- Install suspension struts and hand-tighten
suspension strut to axle beam bolts.

- Coat O-ring for ABS wheel speed sensor with
brake cylinder paste.

Repair Manual, Brake System, Repair Group 46

Repair Manual, Brake System, Repair Group 47 - Push ABS wheel speed sensors into wheel bearing housings up to
stop.
- Install locking plates for ABS wheel speed sensors.
- Route parking brake cables and attach to brake calipers.
- Connect brake lines.
- Adjust parking brake:
- Install heat shield.
- Bleed brakes:
Pa
ge 14 of 26 Rear axle, servicin
g (front-wheel-drive vehicles
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU01.42.1

42-14

Guide bushings, removing and installing


Lowering rear axle
- On vehicles with headlight range control remove linkage from axle
beam.
- Remove bolts from guide bushing mount and lower axle.
- Position VW552 guide piece to prevent brake lines from becoming
stressed.

Removing guide bushing
Pa
ge 17 of 26 Rear axle, servicin
g (front-wheel-drive vehicles
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU01.42.1

42-16


Rear wheel bearing and wheel hub,
servicing

Before carrying out work on the wheel bearings or
wheel hub the wheel and brake caliper must be
removed:
Repair Manual, Brake System, Repair Group 46


CAUTION!
Notes:
Suspend the brake caliper using a piece of
wire.
Do not allow the caliper to hang by the brake
hose. The unsupported weight can stretch
and damage the brake hose.
Do not attempt to weld or straighten the load
bearing components or parts of the
suspension
Only re-install clean bearings; do not wash out
bearings.
Make sure wheel bearing clearance is set
carefully.
Pa
ge 19 of 26 Rear axle, servicin
g (front-wheel-drive vehicles
)
11/20/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU01.42.1

42-18


10 -
Outer wheel bearing
Do not wash out if bearing is to be re-used
11 -
Outer wheel bearing outer race Use copper arbor to drive outPressing in Fig. 4Apply small quantity of wheel bearing
grease to wheel bearing seat before
pressing in bearing race
12 -
Brake disc with wheel hub
13 -
ABS wheel speed sensor rotor Drive off evenly using copper arbor through
tapped holes in wheel hub Pressing in Fig. 5
14 -
Inner wheel bearing outer race
Use copper arbor to drive out outer raceApply small quantity of wheel bearing
grease to wheel bearing seat before
pressing in bearing race
Pa
ge 21 of 26 Rear axle, servicin
g (front-wheel-drive vehicles
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU01.42.1