torque AUDI A4 1999 B5 / 1.G Front Brake Service Workshop Manual

46-2


Note:
CAUTION!
Do not allow the caliper to hang by the brake
hose. The unsupported weight can stretch and
damage the hose.
Install complete repair kit.
After installing the brake pads, depress the
brake pedal firmly several times before moving
the vehicle to properly seat the brake pads in
their normal operating position.
The brakes can be tested on a commercial
brake dynamometer provided the speed of the
two dynamometer drive rollers is not more than
5.5 km/h (3.3 mph).
Tightening torque for the brake lines is 15 Nm
(11 ft lb)
1 -
Brake hose
Do not disconnect the brake hose from the
caliper when replacing brake pads.
2 -
Caps Remove for access to guide pin
Pa
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46-9

CAUTION!

Extract part of the brake fluid from the brake
fluid reservoir before pushing back the
pistons.
If this is not done, particularly if the brake
fluid has been topped up in the meantime,
brake fluid may flow out and cause damage.
Use the bleeder bottle or a plastic bottle,
which is used only for brake fluid, for
extracting the fluid.
The inner brake pad (with expanding spring)
is marked with an arrow that must point in
the direction of rotor rotation when the
vehicle is moving forward. Incorrect
installation can result in excessive noise.

- Install inner brake pad (with expanding spring) in brake caliper piston
(left arrow). Arrow marked on pad must point in direction of rotor
rotation when vehicle is moving forward.
- Remove protective sheet from backing plate for outer brake pad.
- Install outer brake pad into brake carrier (right arrow).
- Bolt brake caliper housing to brake carrier using two guide pins.
Tightening torque: 25 Nm (18 ft lb)
- Install both caps.
Pa
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46-12


Note:

Install complete repair kit.
After installing the brake pads, depress the
brake pedal firmly several times before moving
the vehicle to properly seat the brake pads in
their normal operating position.
The brakes can be tested on a commercial
brake dynamometer provided the speed of the
two dynamometer drive rollers is not more than
5.5 km/h (3.3 mph).
Tightening torque for the brake lines is 15 Nm
(11 ft lb).
1 -
Torx bolt
Always replace25 Nm (18 ft lb)Remove and install using commercially
available Torx socket T40 Bolts are included in the repair kit for the
brake pads
Pa
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46-19


CAUTION!
The repair kit contains four self-locking Torx bolts which must
always be installed.
Note:
After replacing brake pads depress the brake pedal firmly several times
while the car is stationary so that the brake pads adjust to their normal
operating positions. - Press floating frame out as far as stop.
- Remove protective sheet from back of outer brake pads.

Note:
Make sure wheels do not hang on brake calipers when they are installed.
The brake pads could be pushed out of the caliper frame. -
Install Torx bolts (right arrows) from repair kit into floating frame to
secure outer brake pads in position. Tightening torque: 25 Nm (18 ft lb)
- Remove wheel bolt from wheel hub.
- Install wheels and tighten wheel bolts.
Tightening torque: 120 Nm (89 ft lb)
- Check brake fluid level and top up if necessary.
Pa
ge 22 of 22 Front brakes, servicin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU03.46.1