fuel pressure AUDI A6 1997 C5 / 2.G AEB ATW Engines Cylinder Head Remove And Install Workshop Manual
Page 12 of 35
15-13
 
    
-  Unbolt fuel supply rail retaining bolts and disconnect vacuum line at 
fuel pressure regulator (arrows). 
-  Disconnect fuel supply rail with injectors from intake manifold and lay 
aside in rear of engine compartment on clean cloth. 
-  Disconnect coolant hoses at upper coolant line.
    
-  Disconnect upper coolant line at intake line and rear coolant flange at 
rear of cylinder head (arrows). 
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ylinder head, removin
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Page 34 of 35
15-31
      
-  Activate starter until no further pressure 
increases are indicated by VAG1381 or 
VAG1763 compression tester. 
     
Compression pressure 
     
Engine code  
New  
Wear limit  
  
AEB   10.0-13.0 bar  
(145-188.5 psi)  7.0 bar  
(101.5 psi)  
      Permissible difference between all cylinders: 3 
bar (43 psi)  
     
-  Install spark plugs and ignition coils.
     
-  Check DTC memory.
     
       Repair Manual, 1.8 Liter 5V Turbo Fuel 
Injection & Ignition, Repair Group 01        
Note:  
     Diagnostic Trouble Codes (DTCs) are stored 
when harness connectors are disconnected. 
After testing, check DTC memory and erase. 
Pa
ge 34 of 35 C
ylinder head, removin
g and installin
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11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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e=re
pair&id=AUDI.B5.GE02.15.2