AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1148/w960_1148-0.png AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual

Page 1 of 11

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual 47-41
 
  
Brake master cylinder with 25.4 
mm (0.999 in.) diameter piston 
and brake servo, component 
summary Note: 
 
Brake master cylinders can no longer be 
disassembled, i.e. there is no provisi

Page 2 of 11

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual 47-42
 
  
3 - 
Flange nut 
Always replace50 Nm (37 ft lb)
4 - 
Sealing plug Moisten with brake fluid and insert into 
brake master cylinder Press brake fluid reservoir into sealing 
plugs 
5 - 
Brake

Page 3 of 11

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual 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 bra

Page 4 of 11

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual 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 
1

Page 5 of 11

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual 47-45
 
    
a = 159 mm   0.5 mm (6.26 in.   0.02 in.)  
Note:  Fig. 1  Adjusting ball head
The ball head must be positioned at right angles to the mounting 
surface of the brake servo unit when measu

Page 6 of 11

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual 47-46
      
Brake master cylinder with 25.4 mm 
(0.999 in.) diameter piston and brake 
servo, removing and installing as a unit
 
     
Special tools and equipment  
     
Repair Manual, Body-Exterio

Page 7 of 11

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual 47-47
 
  
Releasing brake pedal  
-  Remove brake light switch.
1 - 
Inserting T10006 brake pedal release tool 
Insert the tool from below
2 - 
Release procedures 
  - Tightly hold brake pedal.
 - Li

Page 8 of 11

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual 47-48
      
-  Attach bleeder hose and bleeder bottle to left-
front brake caliper bleeder screw and open 
bleeder screw. 
     
-  Operate brake pedal to pump out as much brake 
fluid as possible.

Page 9 of 11

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual CAUTION! 
Brake fluid must not be allowed to come into contact with paintwork 
because of its caustic effect. 
Pa
ge 9 of 11 Brake master c
ylinder with 25.4 mm 
(0.999 in.
) diameter 
piston and brak

Page 10 of 11

AUDI A4 1999 B5 / 1.G Master Cylinder 25mm Workshop Manual 47-49
      
-  Remove brake fluid reservoir by pressing locking 
catch down and pulling reservoir out of sealing 
plugs. 
    
-  Disconnect brake lines -3- on brake master cylinder and seal brake 
l
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