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Audi AS Cabriolet 2015 Owner's Manual page 205

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M
N
ci
LL
co
rl
I.O
"'
N
"'
rl
-
To avoid being burned, do not spi
ll
anti-
freeze or coolant on the exhaust system or
hot engine parts. Under certain condi-
tions, the ethylene glycol in engine cool-
ant can catch fire.
-
Antifreeze is poisonous. Always store anti-
freeze in its original conta iner and well out
of the reach of children
.
-
If you drain the coolant, it must be caught
and safely stored in a proper container
clearly marked "poison"
.
(D
Note
-
Do not add coolant if the expansion tank is
empty
.
Air could enter the cooling system
and damage the eng ine
.
If this is the case,
do not continue driving. Seek profess ional
ass istance.
- Coolant pollutes the env ironment and could
cause an eng ine fire
.
Excess coolant will be
fo rced out through the pressure relief valve
in the cap when the eng ine becomes hot.
- If, in an emergency
,
only water can be add-
ed, the correct ratio between wa
t
er and an-
tifreeze
~
page 200 must be restored as
soon as possib le
.
@)
For the sake of the environment
Drained coolant should not be reused. Always
dispose
of
used coolant while observ ing all
environmental regulations
.
Radiator fan
The radiator fan switches on automatically by it-
self.
The radiator fan is driven by the engine via the V-
be lt
.
The viscous clu
t
ch regulates the speed of
the fan according to the temperature
of the cool
-
ant.
An auxiliary e lectr ic rad iator fan* switches on and
off depend ing on coolant temperat ure and othe
r
veh icle operati ng conditions.
Afte
r
you switch the engine off, the auxiliary fan
can continue runn ing for up to 10 minutes - even
Ch
eck
i
n
g
a
nd Fillin
g
with the ignition
off.
It can even sw itch on again
later by itself
¢
&
, if
-
the temperatu re of the engine coo lant rises due
to the heat build- up from the engine in the en-
gine compartment,
or
-
the engine compartment
heats up because the
veh icle is parked in intense sun light
.
A
WARNING
-
To reduce the risk of persona
l
injury never
touch the radiator fan
.
- The auxiliary electric fan is temperature con-
trolled and can switch on suddenly even
when the engine is not running.
-
The a uxiliary radiator fan sw itches on auto-
matica lly when the engine coolant reaches a
certain temperature
and will continue to run
until the coolant temperature
drops.
Brake
fluid
Checking brake fluid level
The brake fluid level can be checked with a quick
glance
.
Fig. 17
6
Engine
compar
tm ent
:
Cover
on the
brake fl
uid
reservoir
Before you check anyth ing in the engine compart
-
ment,
al
way
s
rea
d and
heed
all WARNINGS
¢
_.&in Working in the engine compartment on
page 195
.
.,.
Read the brake fluid level from the brake fluid
reservoir
¢
fig. 176,
¢
page 197
,
fig
.
172
.
The
brake fluid level must be between the "MIN
"
and "MAX
"
markings.
20
3

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