AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components
  A4 1997 B5 / 1.G
  AUDI
  AUDI
  https://www.carmanualsonline.info/img/6/961/w960_961-0.png
  AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components
            
        
  
 
Page 16 of 34
19-15
 
  
13 - 
Bolt 
Tightening torque: 10 Nm
14 - 
Right coolant line From engine block to turbocharger
15 - 
Banjo bolt Tightening torque: 35 Nm
16 - 
Banjo bolt Tightening torque: 35 Nm
17 - 
Right coolant line From engine block to turbocharger
18 - 
From heat exchanger 
19 - 
To front coolant hose 
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        Page 18 of 34
19-17
 
  
Coolant hose connections, diagram
 
1 - 
Bottom coolant hose 
From radiator to engine
2 - 
Cylinder head/ cylinder block 
3 - 
Right turbocharger 
4 - 
Auxiliary water pump 
5 - 
Heat exchanger for heater system 
6 - 
Coolant hose To heat exchanger
7 - 
Left turbocharger 
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11/21/2002 htt
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e=re
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        Page 20 of 34
19-19
      
Cooling system, draining and filling
 
     
Draining  
     
WARNING! 
     
Hot steam can escape from the expansion 
tank when the filler cap is opened. Cover the 
filler cap with a cloth and remove it carefully. 
     
-  Remove filler cap on coolant expansion tank. 
    
-  Remove noise insulation panel.
-  Place drip tray VAG 1306 under the engine. 
    
-  If bumper has been removed from vehicle, open drain tap -arrow- on 
bottom of radiator (left side) by turning anti-clockwise. Fit drain hose on 
connection if necessary. 
-  If bumper has not been removed from vehicle, pull out retaining clip on 
bottom hose going from radiator to engine (right side), and pull hose off 
radiator. 
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11/21/2002 htt
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        Page 31 of 34
19-29
      
Coolant pump, removing and installing
 
     
Notes:  
     
Always replace seals and gaskets.
     Cover toothed belt with a cloth to protect it from 
coolant before removing coolant pump. 
     
Removing  
     
-  Remove front bumper.
     
       Repair Manual, Body Exterior, Repair Group 
63
   
     
-  Move lock carrier to service position.
     
       Repair Manual, Body Exterior, Repair Group 
50
   
     
-  Remove ribbed belt   Page 13
-1 .
     
-  Remove toothed belt   Page 13
-4 .
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        Page 34 of 34
19-31
      
Installing  
      Install in the opposite order to removing. When 
installing, note the following points:  
     
-  Remove residues of sealant on sealing surfaces 
of coolant pump and cylinder block. 
     
-  Clean sealing surfaces; ensure that they are free 
of oil and grease. 
     
-  Fit new gasket on coolant pump flange. 
    
-  Insert coolant pump into cylinder block and tighten all 9 securing bolts -
2-. 
-  Secure rear toothed belt guard at coolant pump housing -1-.
   Tightening torque: 10 Nm. 
-  Install toothed belt   Page 13
-4 .
- Install ribbed belt   Page 13
-1 .
-  Install toothed belt guard. 
-  Fill cooling system   Page 19
-19
 .
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ge 34 of 34 Coolin
g system com
ponents, removin
g and installin
g
11/21/2002 htt
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yp
e=re
pair&id=AUDI.B5.GE05.19.1