2021 Audi A4 / S4 — Owner's Manual – Page #230

Posted on 12 Oct, 2020
Model: 2021 Audi A4 / S4
Pages: 304


File size: 108 MB

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Checking
and
Filling
Facility
check
if
the
coolant
additive
in
your
vehicle
matches
the
percentage
appropriate
for
the
climate.
This
is
especially
important
when
driving
in
colder
climates.
If
the
G12evo
coolant
additive
is
not
availa-
ble
in
an
emergency,
do
not
add any
other
additive.
You
could
damage
the
engine.
If
this
happens,
only
use
distilled
water
and
restore
the
correct
mixture
ratio
with
the
specified
coolant
additive
as
soon
as
possi-
ble.
Only
refill
with
new
coolant.
Radiator
sealant
must
not
be
mixed
with
the
coolant.
You
can
continue
driving
if
the
permitted
G12evo
coolant
additive
was
not
added.
However,
go
to
an
authorized
Audi
dealer
or
authorized
Audi
Service
Facility
immediately
to
have
the
coolant
replaced
to
reduce
the
risk of
engine
damage.
Due
to
the
risk
of
engine
damage,
the
cool-
ing
system
should
only
be
refilled
by
an
au-
thorized
Audi
dealer
or
authorized
Audi
Service
Facility.
An
authorized
Audi
dealer
or
authorized
Audi
Service
Facility
can
also
pro-
vide
you
with
important
information
about
the
recommended
coolant
additive.
(Gitta
diet
lis
RAZ-0540,
Fig.
161
Engine
compartment
-
Coolant
expansion
tank:
@
cover
with
release
button;
@)
markings
Observe
the
safety
precautions
>
page
221,
Gen-
eral
information.
Checking
the
coolant
level
>
Park
the
vehicle
on a level
surface.
>
Switch
the
ignition
off.
>
Open
the
hood
>
page
222.
228
The
coolant
expansion
tank
for
some
engines
is
located
in
the
water
drip tray
under
a
cover.
If
necessary,
remove
the
cover
that
is
located
under
the
windshield
wiper
on
the
front
passenger's
side.
>
Check
the
coolant
level
in
the
coolant
expan-
sion
tank
>
page
223,
fig.
159
using
the
outer
markings
(2)
>
fig.
161.
The
coolant
level
must
be
between
the
markings
(2)
when
the
engine
is
cold.
When
the
engine
is
warm
it
can
be
slight-
ly
above
the
upper
marking.
»
Applies
to:
vehicles
with
6-cylinder
engine:
There
is
a
float
located
in
the
coolant
expansion
tank.
Read
the
coolant
level
using
the
coolant
level float.
When
the
engine
is
cold,
the float
must
be
located
between
the
MIN marking
and
the
edge
of
the
filler
opening
on
the
coolant
ex-
pansion
tank.
>
When
you add
coolant
to
the
expansion
tank,
please
refer
to
>
page
227,
Cooling
system.
Adding
coolant
Requirement:
there
must
be
a
residual
amount
of
coolant
in
the
expansion
tank
>@).
If
you
must
add
coolant,
use
a
mixture
of
water
and
coolant
additive.
Audi
recommends
mixing
the
coolant
additive
with
distilled
water.
>
Allow
the
engine
to
cool.
>
Place
a
large,
thick
towel
on
the
coolant
expan-
sion
tank
cap.
>
Push
the
release
button
@
>
fig.
161
on
the
cap
and
carefully
turn
it
to
the
left
until
you
feel
resistance
>
/\.
>
Push
the
release
button
again
and
remove
the
cap
completely.
»
Add coolant
in
the
correct
mixture
ratio
=>
page
227
up
to
the
MAX
marking.
Or,
in
vehicles
with
a
6-cylinder
gasoline
engine,
the
float
must
be
located
between
the
MIN
mark-
ing
and
the
edge
of
the
filler
opening
on
the
coolant
expansion
tank.
>
Make
sure
that
the
fluid level
remains
stable.
Add
more
coolant
if
necessary.
>
Vehicles
with
6-cylinder
engine:
if
necessary,
press
the
float
into
the
coolant
expansion
tank
using
the
cover.
>
Turn
the cap
to
the right
to
tighten
it
until
you
feel
resistance
a
second
time.

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