AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components

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 1 of 34

AUDI A4 1997 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 2 of 34

AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components       Perform leak test on cooling system with cooling 
system tester VAG 1274 and adapter VAG 
1274/8.  
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11/21/2002 htt
p://127.0.

Page 3 of 34

AUDI A4 1997 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 4 of 34

AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components 19-3
 
  
1 - 
Radiator 
Removing and installing   Page 19
-26
After replacing, replace coolant in complete 
system 
2 - 
Securing clip 
3 - 
Securing rubber 
4 - 
O-ring Replace if damaged
5 - 
Botto

Page 5 of 34

AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components 19-4
 
  
7 - 
Retaining bolt 
8 - 
Nut 
Tightening torque: 10 Nm
9 - 
Fan ring Clipped into air ducting and secured with 
retaining bolt -Item 7 - 
10 - 
2-pin connector 
11 - 
Radiator fan (-V7-) 
1

Page 6 of 34

AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components 19-5
 
  
13 - 
Radiator fan thermoswitch (-F18-), 35 Nm 
For electric fan
  Switching temperatures: Stage 1on: 92...97 Coff: 84...91 C
  Switching temperatures: Stage 2
on: 99...105 Coff: 91...98 C
1

Page 7 of 34

AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components 19-6
 
  
17 - 
Bolt 
Tightening torque: 5 Nm
18 - 
Mounting rod 
19 - 
Guard plate 
20 - 
Bolt Tightening torque: 5 Nm
21 - 
Bolt Tightening torque: 5 Nm
22 - 
Radiator Removing and installing   Page

Page 8 of 34

AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components 19-7
 
  
23 - 
Nut 
Tightening torque: 5 Nm
24 - 
Bracket 
25 - 
Fan ring 
26 - 
Pressurizing fan 
27 - 
Bolt Tightening torque: 5 Nm
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Page 9 of 34

AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components 19-8
 
  
Cooling system components (on engine, 
front), removing and installing
 
1 - 
Connection 
For thermostat
2 - 
O-ring Always replace
3 - 
Thermostat Checking: heat the thermostat in waterStar

Page 10 of 34

AUDI A4 1997 B5 / 1.G APB Engine Cooling System Components 19-9
 
  
5 - 
Filler cap 
Test with cooling system tester VAG 1274 
and adapter VAG 1274/9 Test pressure 1.4...1.6 bar
6 - 
O-ring Replace if damaged
7 - 
Bolt Tightening torque: 10 Nm
8 - 
Expansion
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