Audi A4 2024 - Page 238

Checking and Filling
The amount of coolant additive that needs to be
mixed with water depends on the climate where
the vehicle will be operated. If the coolant addi-
tive percentage is too low, the coolant can freeze
and damage the engine.
min. -13 °F
25°C)
Warm
regions
Cold
regions
max. -40 °F
(-40 °C)
— Before the start of winter, have an author-
ized Audi dealer or authorized Audi Service
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.
236
© ®
MAX
J AF
Fig. 162 Engine compartment - coolant expansion tank
(diagram): @ cover with release button; @ coolant expan-
sion tank markings( 4-cylinder engine)
Fig. 163 Coolant expansion tank markings (6-cylinder en-
gine)
Observe the safety precautions page 228, Gen-
eral information.
Depending on the version of the engine, the cool-
ant expansion tank will be located in the engine
compartment + page 236, Checking the coolant
level/adding coolant (1) or in the plenum cham-
ber under a cover page 237, Checking the cool-
ant level/adding coolant (2):
Checking the coolant level/adding coolant
a)
Applies to: vehicles with coolant expansion tank in the engine
compartment
In vehicles with a 4-cylinder engine, the coolant
expansion tank is located in the engine compart-
ment © page 231, fig. 159.
» Park the vehicle on a level surface.
» Switch the ignition off.
» Open the hood © page 230.
» Check the coolant level in the coolant expan-
sion tank © page 231, fig. 159 using the outer
markings @)® fig. 162. The coolant level must >
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