AUDI A4 1997 B5 / 1.G AWM Engine Cooling System Components Owner's Guide

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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19-29

Vehicles with automatic transmission:

Note:
Observe cleanliness rules when working on the automatic transmission:
Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 37

Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 37
All models:
CAUTION!
The air conditioner refrigerant circuit must not be opened. - Remove bolts -arrows-.
- Remove air duct -1- and -2-.
- Place drip tray underneath to collect oil.
- Remove ATF lines/hoses from radiator:- Tie ATF lines to longitudinal member to avoid leakage of fluids.
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19-30

Note:
To prevent damage to the condenser and
refrigerant lines/hoses, ensure that the lines and
hoses are not stretched, kinked or bent.

Note:
Protect fender panel from damage. - Remove air cowls from radiator -4- (left and right).
- Remove securing bolts -1- and -2- for condenser.
- Disconnect connector -3- from air conditioner pressure switch -F129-.
- Pull condenser up out of its bracket, pivot toward side and secure to
right-hand front wheel with wire.

- Release two retaining pins for radiator and pull out upward -arrows-.
- Pivot radiator toward front and lift out.
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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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19-32


Cooling system, checking for leaks

Special tools and equipment

VAG 1274
Adapter 1274/8
Adapter 1274/9
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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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- Install tester VAG 1274 with adapter VAG 1274/9 onto sealing cover.
- Operate hand pump.
Pressure relief valve must open at a pressure of 1.4 to 1.6 bar.
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