engine AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual
Page 3 of 11
47-43
7 -
Brake fluid reservoir cap
8 -
Fluid supply hose
From brake fluid reservoir to clutch master
cylinder
9 -
Seal Install in groove in brake master cylinderReplace after removing brake master
cylinder
10 -
Brake servo Removing and installing page 47
-46
Adjusting ball head Fig. 1
Functional check:
- With engine switched off, depress brake
pedal firmly several times (to deplete
vacuum in brake servo).
- Depress and hold brake pedal with
average foot pressure and start engine. If
servo unit is working properly, pedal will
be felt to give slightly under foot (servo
assistance becomes effective).
If malfunctioning:
- Replace as complete unit only.
Pa
ge 3 of 11 Brake master c
ylinder with 25.4 mm
(0.999 in.
) diameter
piston and brake servo, com
ponent summar
y
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU03.47.7
Page 4 of 11
47-44
11 -
Gasket
Brake servo supplied with gasket glued onReplace only if damaged
12 -
Vacuum hose
- Install into brake servoOn gasoline engines vacuum is supplied
from intake manifold
13 -
Bulkhead
14 -
Brake line 15 Nm (11 ft lb)Brake master cylinder/primary piston circuit
to hydraulic control unit
15 -
Brake line 15 Nm (11 ft lb)Brake master cylinder/secondary piston
circuit to hydraulic control unit
16 -
Bolt Screw in as far as stopAttaches brake fluid reservoir
Pa
ge 4 of 11 Brake master c
ylinder with 25.4 mm
(0.999 in.
) diameter
piston and brake servo, com
ponent summar
y
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU03.47.7