1996 AUDI A4 engine coolant

19-17

Note:
When installing ribbed belt, check for correct
seating on belt pulley.

- Install V-belt Page 13
-18
.

- Fill up with coolant Page 19
-6 .

WARNING!

The cooling system is pressurized when the
engine is warm. When opening the expansion
tank, wear gloves and other appropriate
protection, cover the cap using a cloth, and
open carefully to relieve system pressure
slowly.

CAUTION!

Be sure the ignition is switched OFF. Failure
to do so may damage the Engine Control
Module (ECM).

- Switch ignition off and reconnect battery Ground
(GND) strap.

- After connecting battery, enter anti-theft code for
radio.

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play?action=Goto&t
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pair&id=AUDI.B5.GE02.19.1

19-20

Coolant thermostat, removing, installing
and checking


Removing

- Drain coolant Page 19
-4 .

Installing
WARNING!
The cooling system is pressurized when the engine is warm. When
opening the expansion tank, wear gloves and other appropriate
protection, cover the cap using a cloth, and open carefully to relieve
system pressure slowly.
Tightening torque - Remove bolts -4-, remove connector -3-, O-ring -2- and coolant
thermostat -1-.
- Clean and/or smooth O-ring sealing surface.
- Install coolant thermostat.
- Fill up with coolant Page 19
-6 .
Component
Tightening torque
Connector to pump housing 10 Nm (7 ft lb)
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11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
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pair&id=AUDI.B5.GE02.19.1

19-23

Installing
Installation is the reverse of removal, noting the
following:

- Fill with coolant Page 19
-6 .

WARNING!

The cooling system is pressurized when the
engine is warm. When opening the expansion
tank, wear gloves and other appropriate
protection, cover the cap using a cloth, and
open carefully to relieve system pressure
slowly.
Pa
ge 27 of 34 Coolin
g system com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.19.1

19-24

Radiator, removing and installing


Special tools and equipment
VAG1306 drip tray

Removing

- Remove front bumper.

Repair Manual, Body Exterior, Repair Group
63


WARNING!
The cooling system is pressurized when the engine is warm. When
opening the expansion tank, wear gloves and other appropriate
protection, cover the cap using a cloth, and open carefully to relieve
system pressure slowly. - Unbolt cooling pipe for power steering hydraulic oil (arrows).
- Place VAG1306 drip tray underneath engine.
- Open coolant expansion tank cap.
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11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.19.1

19-27

Installing
Installation is the reverse of removal, noting the
following:

- Fill up with coolant Page 19
-6 .

WARNING!

The cooling system is pressurized when the
engine is warm. When opening the expansion
tank, wear gloves and other appropriate
protection, cover the cap using a cloth, and
open carefully to relieve system pressure
slowly.

Tightening torques

Component
Tightening torques
Condenser to radiator 10 Nm (7 ft lb)
Coolant line to radiator 10 Nm (7 ft lb)
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11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.19.1

19-28

Cooling system, pressure test


Special tools and equipment

VAG1274 cooling system tester
VAG1274/1 adapter or VAG1274/8 with
VAG1274/9

Test condition:
Engine at operating temperature

WARNING!

The cooling system is pressurized when the
engine is warm. When opening the expansion
tank, wear gloves and other appropriate
protection, cover the cap using a cloth, and
open carefully to relieve system pressure
slowly.

- Open coolant expansion tank cap.

Vehicles with small cap

- Using VAG1274/1 adapter, attach VAG1274 cooling system tester to
coolant expansion tank.
Pa
ge 32 of 34 Coolin
g system com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.19.1