belt AUDI A4 1998 B5 / 1.G AHA ATQ Engines Cooling System Components Workshop Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 1998, Model line: A4, Model: AUDI A4 1998 B5 / 1.GPages: 40, PDF Size: 0.77 MB
Page 9 of 40
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 sure hose is securely seatedCoolant hose connection diagram page 19
-9
17 -
Coolant line
Coolant hose connection diagram page 19
-9
18 -
Rear toothed belt guard
19 -
Gasket
Always replace
20 -
Coolant pump Check for ease of movementCompletely replace if damaged or leakingRemoving and installing page 19
-20
Pa
ge 9 of 40 Coolin
g system com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.19.1
Page 10 of 40
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 left-hand threadTightening torque only valid when using
3312 open end spanner. Tighten to 40 Nm (30 ft lb)Removing and installing page 19
-25
26 -
Bracket
For viscous fan
27 -
From bottom of radiator Coolant hose connection diagram page 19
-9
Pa
ge 10 of 40 Coolin
g system com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.19.1
Page 24 of 40
19-20
Coolant pump, removing and installing
Notes:
Always replace seals and gaskets.
Cover the toothed belt with a cloth to protect it
from coolant before removing the coolant pump.
Removing
- Remove front bumper.
Repair Manual, Body Exterior, Repair Group
63
- Move lock carrier into service position.
Repair Manual, Body Exterior, Repair Group
50
- Remove ribbed belt page 13
-8 .
- Remove toothed belt page 13
-12
.
Pa
ge 24 of 40 Coolin
g system com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.19.1
Page 26 of 40
19-21
- Remove the following components before removing coolant pump:
1 - Toothed belt tensioner roller
Tightening torque: 20 Nm (15 ft lb)
2 - Idler roller
Tightening torque: 45 Nm (33 ft lb)
- Remove coolant pump mounting bolts -1- and remove coolant pump -
2-.
Pa
ge 26 of 40 Coolin
g system com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.19.1
Page 27 of 40
19-22
Installing
Installation is the reverse of removal, noting the
following:
- Remove any remaining sealant from sealing
surfaces of coolant pump and cylinder block.
- Clean sealing surfaces so they are completely
free of any oil or grease.
- Install new gasket on water pump flange.
- Install coolant pump -2- into cylinder block and tighten all 9 mounting
bolts (arrow -2-) to 10 Nm (7 ft lb).
- Install rear toothed belt guard on water pump housing (arrow -1-).
Tightening torque: 10 Nm (7 ft lb).
- Install and tension toothed belt page 13
-12
.
- Install toothed belt guard.
- Install ribbed belt page 13
-8 .
- Fill cooling system with coolant page 19
-11
.
Pa
ge 27 of 40 Coolin
g system com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.19.1
Page 28 of 40
19-23
Thermostat, removing and installing
Notes:
Always replace seals and gaskets.
Cover the toothed belt with a cloth to protect it
from coolant before removing thermostat.
Removing
- Drain coolant page 19
-11
.
- Remove front bumper.
Repair Manual, Body Exterior, Repair Group
63
Lock carrier in service position
Repair Manual, Body Exterior, Repair Group
50
- Remove ribbed belt page 13
-8 .
Pa
ge 28 of 40 Coolin
g system com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.19.1
Page 29 of 40
- Remove toothed belt page 13
-12
.
- Remove connection mounting bolts -1- and remove connection -2-.
- Remove thermostat -4-.
Pa
ge 29 of 40 Coolin
g system com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.19.1
Page 30 of 40
19-24
Installing
Installation is the reverse of removal, noting the
following:
Bleeder valve for thermostat (arrow) must be at the top.
- Install thermostat -4- into engine block.
- Moisten new O-ring -3- with coolant.
- Install connection -2- for thermostat and tighten bolt -1- to 10 Nm (7 ft
lb).
- Install and tension toothed belt page 13
-12
.
- Install ribbed belt page 13
-8 .
- Fill cooling system with coolant page 19
-11
.
Pa
ge 30 of 40 Coolin
g system com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.19.1