coolant AUDI A4 1998 B5 / 1.G AWM Engine Cooling System Components Owner's Manual

19-24


Note:
Connector -2- remains plugged in. - Remove air duct hose -1-.

- Disconnect heater hose at rear of coolant line -2-. To do this, release
retaining clip on connecting flange.
- Pull off coolant hose to oil cooler -4- at coolant line.
- Remove bolt -3-.
- Push lower coolant line toward rear of vehicle and remove.
- Remove plug -5- if necessary.
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19-25

Installing
Installation is carried out in the reverse order of
removal; note the following:

Note:
Always replace seals and gaskets.

- Before installing, clean and smooth down
sealing surface for O-ring.

Tightening torques - Moisten new O-ring -1- with G 012 A8 D coolant and slide onto coolant
line -2-.
- Push coolant line into opening in cylinder block.
- Top up coolant Page 19
-7 .
Component

Nm
Coolant line to oil filter bracket 20
Hose clamps for coolant hoses
2
Hose clamps for air duct hoses
3.5
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19-27


WARNING!
Hot steam can escape when opening the cap on the expansion tank:
Cover cap with a cloth and open carefully. - Disconnect cooling lines for power steering hydraulic fluid -arrows-.
- Open cover of coolant expansion tank
- Place drip tray VAG 1306 below engine.

- Turn drain screw -arrow- on radiator counter-clockwise. If necessary,
install a drain hose on connection.
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19-28


- Release coolant hose retaining clip -arrow- and remove coolant hose
from radiator.

- Disconnect coolant hose from top of radiator -arrow-.
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19-31

Installing
Installation is carried out in the reverse order of
removal; note the following:

- Install front bumper:

Repair Manual, Body Exterior, Repair Group
63


- Top up coolant Page 19
-7 .

Vehicles with automatic transmission:

- Attach ATF lines.

Repair Manual, 5 Spd. Automatic
Transmission 01V, Repair Group 37


- Check ATF level:

Repair Manual, 5 Spd. Automatic
Transmission 01V, Repair Group 37


Tightening torques
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Component
Nm
Condenser to radiator 10
Cooling lines to radiator 10
Hose clamps for coolant hoses 2
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19-33

Test requirements:

Engine at operating temperature.

WARNING!

Hot steam can escape when opening the cap
on the expansion tank: Cover cap with a cloth
and open carefully.

- Open cover of coolant expansion tank

Testing pressure relief valve in filler cap - Install tester VAG 1274 with adapter VAG 1274/8 onto expansion tank.
- Using hand pump on tester, build up a pressure of approx. 1.0 bar.
- If this pressure is not maintained, locate and repair leaks.

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pair&id=AUDI.B5.GE06.19.1