engine coolant AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/961/w960_961-0.png AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components

Page 1 of 34

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components 19-1
 
     
Cooling system components, 
removing and installing 
     
WARNING! 
     
Hot steam can escape from the expansion 
tank when the filler cap is opened. Cover the 
filler cap with a cloth

Page 3 of 34

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components 19-2
      
Cooling system components (on body), 
removing and installing
 
     
Notes:  
     
Parts of cooling system on engine   Page 19
-
8 . 
     
Diagram of coolant hose connections   Page 19

Page 14 of 34

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components 19-13
 
  
Cooling system components (on engine, 
rear), removing and installing
 
1 - 
To front water hose 
2 - 
Front coolant line 
Diagram of coolant hose connections   
Page 19
-17
 
3 - 
Bleeder

Page 15 of 34

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components 19-14
 
  
 Repair Manual, 2.7 Liter V6 5V BiTurbo Fuel 
Injection & Ignition, Engine Code(s): APB, Repair Group 01
    7 - 
Right coolant line From turbocharger to rear coolant line
8 - 
Banjo bolt T

Page 16 of 34

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components 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 - 
Rig

Page 18 of 34

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components 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 excha

Page 20 of 34

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components 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 clo

Page 21 of 34

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components 19-20
 
    
Note:  
Observe disposal regulations for coolant. 
Filling  
Notes:  -  Drain coolant from engine at drain screw -arrow-. 
Use only coolant additive G 12 - meeting specification VW 774 D.

Page 22 of 34

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components 19-21
      
G 12 and coolant additives complying with 
specification "VW 774 D" prevent frost and 
corrosion damage, scaling and also raise the 
boiling point of the coolant. For this reason the 
sys

Page 25 of 34

AUDI A4 1999 B5 / 1.G APB Engine Cooling System Components 19-23
      
-  Replace O-ring on coolant drain screw and 
screw drain screw back into engine. 
     
   Tightening torque: 20 Nm 
     
-  Install bottom coolant hose and secure.
     
-  Close coola
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