Coolant line AUDI A4 1999 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual

AUDI A4 1999 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/987/w960_987-0.png AUDI A4 1999 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual

Page 8 of 40

AUDI A4 1999 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual 19-6
 
  
7 - 
Engine Coolant Temperature (ECT) sensor 
-G62- 
For Engine Control Module (ECM)If necessary, release pressure in cooling 
system before removing Checking   Repair Manual, 2.8 Liter V6

Page 9 of 40

AUDI A4 1999 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual 19-7
 
  
14 - 
O-ring 
Replace if damaged
15 - 
Expansion tank Check using VAG1274 cooling system 
tester with VAG1274/9 adapter 
16 - 
Upper coolant hose Secured to radiator with retaining clipMake

Page 10 of 40

AUDI A4 1999 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual 19-8
 
  
21 - 
Lower coolant line 
Coolant hose connection diagram   page 19
-9 
22 - 
Oil cooler 
23 - 
Belt pulley 
For viscous fan
24 - 
Fan wheel for viscous fan 
25 - 
Viscous fan coupling Note

Page 11 of 40

AUDI A4 1999 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual 19-9
 
  
Coolant hose connection diagram
 
1 - 
Lower coolant hose 
From radiator to engine
2 - 
Cylinder head/cylinder block 
3 - 
Intake manifold 
4 - 
Coolant line From heat exchanger to engine bl

Page 12 of 40

AUDI A4 1999 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual 19-10
 
  
9 - 
Oil cooler 
10 - 
Coolant line 
From expansion tank to lower coolant pipe
11 - 
Upper coolant hose 
12 - 
Radiator 
13 - 
Coolant pump 
14 - 
Lower coolant line 
15 - 
Connection For t

Page 18 of 40

AUDI A4 1999 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual 19-15
 
    
-  Loosen bleeder screw on lower coolant line (arrow) under expansion 
tank (if necessary, unbolt expansion tank). 
-  Top off coolant until it flows out from bleeder screw.
-  Close blee

Page 23 of 40

AUDI A4 1999 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual 19-19
      
All models 
    
Installing  
Installation is the reverse of removal, noting the following:  
Vehicles with automatic transmission  
 Repair Manual, 5 Spd. Automatic Transmission 01V, Rep