AUDI A6 1995 C5 / 2.G AEB ATW Engines Cooling System Components Owner's Guide
Page 31 of 34
19-27
      
Installing  
      Installation is the reverse of removal, noting the 
following:  
     
-  Fill up with coolant   Page 19
-6 .
     
WARNING! 
     
The cooling system is pressurized when the 
engine is warm. When opening the expansion 
tank, wear gloves and other appropriate 
protection, cover the cap using a cloth, and 
open carefully to relieve system pressure 
slowly. 
     
Tightening torques  
     
Component  
Tightening torques  
Condenser to radiator   10 Nm (7 ft lb)  
Coolant line to radiator   10 Nm (7 ft lb)  
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Page 32 of 34
19-28
      
Cooling system, pressure test
 
     
Special tools and equipment  
     
VAG1274 cooling system tester
     VAG1274/1 adapter or VAG1274/8 with 
VAG1274/9 
     
Test condition:  
     Engine at operating temperature 
     
WARNING! 
     
The cooling system is pressurized when the 
engine is warm. When opening the expansion 
tank, wear gloves and other appropriate 
protection, cover the cap using a cloth, and 
open carefully to relieve system pressure 
slowly. 
     
-  Open coolant expansion tank cap.
     
Vehicles with small cap 
    
-  Using VAG1274/1 adapter, attach VAG1274 cooling system tester to 
coolant expansion tank. 
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yp
e=re
pair&id=AUDI.B5.GE02.19.1 
Page 33 of 34
19-29
      
Vehicles with large cap 
    
All models  -  Using VAG1274/8 adapter, attach VAG1274 cooling system tester to 
coolant expansion tank. 
-  Use tester hand pump to create approx. 1.0 bar (14.5 psi) pressure.
-  If pressure drops, check for leaks and repair.
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Page 34 of 34
19-30
      
Pressure relief valve in cap, checking  
     
Vehicles with small cap 
    
Vehicles with large cap  -  Using VAG1274/1 adapter (2 parts), attach VAG1274 cooling system 
tester to coolant expansion tank cap. 
-  Pump using hand pump. 
   Pressure relief valve must open at 1.2-1.5 bar (17.4-21.75 psi).
    
-  Using VAG1274/9 adapter attach VAG1274 cooling system tester to 
coolant expansion tank cap. 
-  Pump using hand pump. 
   Pressure relief valve must open at 1.4-1.6 bar (20.3-23.2 psi).
Pa
ge 34 of 34 Coolin
g system com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.19.1