AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/964/w960_964-0.png AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual

Page 1 of 30

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-1
 
     
Exhaust system components, 
removing and installing 
     
Notes:  
     
Removing and installing exhaust manifold   
Page 26
-17
 
     
After working on the exhaust system ensure 
that

Page 2 of 30

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-2
 
  
Mufflers with mountings, removing and 
installing
 
1 - 
40 Nm 
2 - 
From catalytic converter 
3 - 
Flat-head bolt 
4 - 
Double clamp 
5 - 
25 Nm 
6 - 
Mounting 
With retaining ring
7 - 
Fro

Page 3 of 30

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-3
 
  
9 - 
Separating point 
Front and rear mufflers are installed as one 
component when vehicle is built. For 
repairs, front muffler and rear muffler can 
be replaced separately and connected w

Page 4 of 30

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-4
 
    
Note:  Fig. 1  Separating point between center muffler and rear muffler
A separating point has been provided for replacement of the center 
muffler or rear muffler in the event that repair

Page 5 of 30

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-5
      
Catalytic converter, removing and 
installing
 
     
Removing  
    
-  Remove bolts -arrows- and take off engine cover panels -A ... C-. 
    
-  Remove air distributor component -arrows

Page 6 of 30

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-6
      
Right-hand catalytic converter:  
    
Left-hand catalytic converter:   -  Disconnect connector -1- for oxygen sensor at bulkhead. 
    
-  Disconnect connector -2- for oxygen sensor at bu

Page 7 of 30

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-7
 
    
-  Unbolt heat shield -2- on turbocharger.
-  Remove upper bolt -3- securing front exhaust pipe to turbocharger. 
    
-  Unbolt guard plate -arrows- above drive shaft from transmission.

Page 8 of 30

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-8
 
    
-  Remove cross strut -arrows-.
    
-  Remove retainers -arrows-.
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Page 9 of 30

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-9
 
    
-  Remove transmission support -arrows-.
-  Loosen exhaust system clamp and push clamp towards muffler.
    
Note:  
Avoid excessive bending of the flexible pipe connection (de-coupling 
e

Page 10 of 30

AUDI A4 1999 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-10
      
Installing  
     
-  Install in reverse order.
     
Note:  
     The double clamp must be replaced after 
removeing the bolted connection. 
     
-  Adjust exhaust system   Page 26
-11
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