AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual

AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual A4 2000 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/990/w960_990-0.png AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual

Page 1 of 12

AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual 26-1
 
     
Exhaust system components, 
removing and installing 
     
WARNING! 
     
Do not re-use any fasteners that are worn or 
deformed in normal use. 
     Some fasteners are designed to be us

Page 2 of 12

AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual The flexpipe in left and right exhaust pipes must 
not be bent more than 10 , otherwise it may be 
damaged. 
Pa
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ystem com
ponents, removin
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11/21/2002 htt
p://127

Page 3 of 12

AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual 26-2
 
  
Exhaust manifold, front exhaust pipe and 
Three Way Catalytic Converter (TWC) with 
attachments
 
1 - 
Spacer sleeve 
2 - 
Bolt 
3 - 
Washers 
4 - 
Bracket 
5 - 
Spacer bushing 
6 - 
Rubber

Page 4 of 12

AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual 26-3
 
  
CAUTION! 
Part numbers are listed here for reference only. 
Always check with your Parts department for 
the latest information.  11 - 
Left-front exhaust pipe with Three Way 
Catalytic Conv

Page 5 of 12

AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual 26-4
 
  
13 - 
4-pin harness connectors 
BlackMounted to bulkheadFor Heated Oxygen Sensors (HO2S) and 
for heating function 
14 - 
25 Nm (18 ft lb) 
15 - 
Cover cap 10 Nm (7 ft lb)
16 - 
Connection

Page 6 of 12

AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual 26-5
 
  
CAUTION! 
Part numbers are listed here for reference only. 
Always check with your Parts department for 
the latest information.  22 - 
Heated Oxygen Sensor (HO2S) -G39- 
50 Nm (37 ft lb)Onl

Page 7 of 12

AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual 26-6
 
  
Mufflers with mounts
 
Vehicles with all-wheel drive  
Vehicles with front-wheel-drive   page 26
-9 .  
1 - 
40 Nm (30 ft lb) 
2 - 
From Three Way Catalytic Converter 
(TWC) 
3 - 
Carriage b

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AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual 26-7
 
  
9 - 
Separating points 
At factory, center and rear mufflers are 
installed as single component. 
Replacement center and rear mufflers are 
supplied separately, with double clamp for 
connec

Page 9 of 12

AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual 26-8
 
    
Cutting  Fig. 1  Separating point between front and rear mufflers
-  Using VAG1523 body saw, cut through connecting pipe between 
center muffler and rear muffler at groove. 
   Distance -a

Page 10 of 12

AUDI A4 2000 B5 / 1.G AHA ATQ Engines Exhaust System Components Manual 26-9
 
  
Vehicles with front wheel drive  
1 - 
40 Nm (30 ft lb) 
2 - 
From Three Way Catalytic Converter 
(TWC) 
3 - 
Carriage bolts 
4 - 
Double clamps 
5 - 
25 Nm (18 ft lb) 
6 - 
Mounts 
With ret
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