AUDI A4 2000 B5 / 1.G AWM Engine Secondary Air System Owner's Manual

AUDI A4 2000 B5 / 1.G AWM Engine Secondary Air System Owner's Manual A4 2000 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/942/w960_942-0.png AUDI A4 2000 B5 / 1.G AWM Engine Secondary Air System Owner's Manual

Page 21 of 26

AUDI A4 2000 B5 / 1.G AWM Engine Secondary Air System Owners Manual 26-60
      
Check voltage supply for secondary air 
injection pump motor  
    
-  Remove sound insulation -arrows-.
    
-  Disconnect connector from Secondary Air Injection (AIR) Pump motor -
V101-

Page 22 of 26

AUDI A4 2000 B5 / 1.G AWM Engine Secondary Air System Owners Manual 26-61
 
    
If LED does not flash:  
 Electrical Wiring Diagrams, Troubleshooting & Component Locations 
binder   
 Electrical Wiring Diagrams, Troubleshooting & Component Locations 
binder   
If no

Page 23 of 26

AUDI A4 2000 B5 / 1.G AWM Engine Secondary Air System Owners Manual 26-62
      
Combination valve for secondary air 
inlet, checking function and for leaks
 
     
Special tools and equipment  
    
Test requirements:  
Test sequence  
Vacuum hand pump VAG 1390Vacuum

Page 24 of 26

AUDI A4 2000 B5 / 1.G AWM Engine Secondary Air System Owners Manual 26-63
 
    
-  Remove vacuum hose -arrow- from combination valve.
-  Connect hand vacuum pump VAG 1390 to vacuum unit of combination 
valve. 
    
If the combi valve does not open:  -  Disconnect hos

Page 25 of 26

AUDI A4 2000 B5 / 1.G AWM Engine Secondary Air System Owners Manual 26-64
      
Combination valve for secondary air 
inlet, removing and installing 
 
     
Removing  
    
-  Remove engine cover -arrows-.
    
-  Disconnect hoses -1- and -2- from combination valve.

Page 26 of 26

AUDI A4 2000 B5 / 1.G AWM Engine Secondary Air System Owners Manual 26-65
      
Installing  
      Installation is carried out in the reverse order of 
removal; note the following:  
     
Note:  
     Replace gaskets and seals. 
     
Tightening torque  
     
Compo
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