AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual A4 1998 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/965/w960_965-0.png AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual

Page 1 of 37

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual 21-1
 
     
Charge air system with 
turbocharger  
     
Turbocharger, removing and installing
 
      Observe rules for cleanliness   Page 21
-8 .  
     
Notes:  
     
Turbochargers must be replac

Page 2 of 37

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual 21-2
 
    
Note:  
Plug lower section of intake line.  - Disconnect hose -1-. 
- Disconnect hose -2-. 
-  Unbolt upper section of intake line -3-.
    
-  Remove lower section of intake line -arrow-.

Page 3 of 37

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual 21-3
 
    
-  Push back heat insulation hose in direction of arrow. 
-  Disconnect vacuum hose -1-.
-  Unbolt bracket -2- with gearbox oil lines. 
-  Disconnect line -3-.
-  Disconnect pressure hose

Page 4 of 37

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual 21-4
 
    
-  Disconnect hose -arrow- from cylinder head. 
    
Installing  
Notes:  
When installing turbocharger, ensure that O-ring for oil return is not 
damaged.  -  Remove turbocharger -arrows-

Page 5 of 37

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual 21-5
      
Removing left-hand turbocharger  
    
-  Push back heat insulation hose in direction of arrow. 
-  Disconnect vacuum hose -1-.
-  Remove lower section of pressure line -2-.
-  Disconnect

Page 6 of 37

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual 21-6
 
    
Installing  
Notes:  
When installing turbocharger, be sure that o-ring at connection flange for 
oil return is not damaged.  -  Disconnect oil return line -1-.
- Disconnect water line -2-

Page 7 of 37

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual 21-7
      
Tightening torque  
     
Bolted mountings      Tightening 
torque  
Turbocharger      20 Nm  
Intake line to cylinder head   10 Nm  
Heat shield to turbocharger      10 Nm  
Exhaust manif

Page 8 of 37

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual 21-8
      
Rules for cleanliness
 
      When working on the exhaust gas turbocharger, 
pay careful attention to the following 5 rules:  
     
Thoroughly clean all unions and the adjacent 
areas bef

Page 9 of 37

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual 21-9
      
Turbocharger and charge pressure 
regulating valve, checking
 
     
Safety notes  
      Note the following points if test equipment has to 
be used during a road test:  
     
WARNING!

Page 10 of 37

AUDI A4 1998 B5 / 1.G APB Engine Charge Air System With Turbocharger Workshop Manual 21-10
      
Requirements for test: 
     
Diagnostic Trouble Code (DTC) memory has 
been interrogated 
     
       Repair Manual, 2.7 Liter V6 5V BiTurbo Fuel 
Injection & Ignition, Engine Code(s):
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