CD changer AUDI A4 1999 B5 / 1.G AWM Engine Cooling System Components Workshop Manual

19-3


6 -
Cylinder head/cylinder block
After replacing, fill with fresh coolant
7 -
Heating system heat exchanger After replacing, fill with fresh coolant
8 -
Lower coolant line Removing and installing Page 19
-23
9 -
Oil cooler
Removing and installing Item 23 ,
Page 17
-10

10 -
Expansion tank
With filler capTesting pressure relief valve in filler cap
Page 19
-33

11 -
Intake manifold
Pa
ge 4 of 38 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.GE06.19.1

19-8

Because of its high boiling point, the coolant
improves engine reliability under heavy loads,
particularly in countries with tropical climates.
Protection against frost must be assured to
about -25 C (in arctic climatic countries to
about -35 C).

The coolant concentration must not be reduced
by adding water, even in warmer seasons and
in warmer countries. The anti-freeze ratio must
be at least 40 %.
If greater frost protection is required in very cold
climates, the amount of G 012 A8 D can be
increased, but only up to 60% (this gives frost
protection to about -40 C). Otherwise, frost
protection is reduced again and cooling
effectiveness is also reduced.

Only use clean drinking water for mixing the
coolant.
If radiator, heat exchanger, cylinder head or
cylinder head gasket is replaced, do not reuse
old coolant.
Use special tool T10007 to check frost
protection of coolant additive G012 A8 D in
Pa
ge 10 of 38 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.GE06.19.1

19-10


- Remove seal from plenum chamber cover in direction of arrow.
- Remove plenum chamber cover -1- from front.
- Push back protective cover for coolant hose at connection of heat
exchanger.

- Release coolant hose to heat exchanger and pull back hose until
bleeder hole in coolant hose -arrow- is no longer covered by
connection.
- Top up coolant until it flows out at bleeder hole in coolant hose.
- Push coolant hose on connection and tighten.
- Install expansion tank cap.
Pa
ge 13 of 38 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.GE06.19.1