brake fluid AUDI A4 1998 B5 / 1.G ESP Service Workshop Manual

45-47

Note:
Protect the engine compartment from brake fluid
which flows out.

CAUTION!

Brake fluid must not be allowed to come into
contact with paintwork because of its caustic
effect.

- Loosen hose clamp on suction hose -1- and detach.
- Disconnect brake lines -3- and -4-.
- Seal brake lines and threaded holes with plugs from repair kit Part No.
1H0 698 311A.
- Unclip brake lines from fixture.
- Remove nut -2-.
- Remove bolts for mounting bracket page 45
-41
, item 3 .
- Working from engine compartment, lift bracket together with hydraulic
pump approx. 30 mm (1 3/16 in) and remove.
Pa
ge 8 of 18 Electronic Stabilit
y Pro
gram
(ESP
) hydraulic unit, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU03.45.5

45-48

Installing

Note:
When installing, pay particular attention to the
following points.

Only remove the sealing plugs on the new
hydraulic control unit when the corresponding
brake line is about to be installed.
If the sealing plugs are removed too early the
brake fluid can escape.

- Bleed brake system page 47
-23
.

Bleeding brake system using US1116 brake
bleeder

- Connect US1116 brake bleeder.

- Open bleeder screws in the following sequence
and bleed brake calipers (assist with pedal
pressure, if necessary).

Bleeding sequence

2 - Left-rear brake caliper
Pa
ge 9 of 18 Electronic Stabilit
y Pro
gram
(ESP
) hydraulic unit, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU03.45.5