Audi TT Coupe 2014 Owner's Manual page 227

Coolant addi-
tive
Countries with min. 40
warm climate max. 45
Countries with min. 50
cold climate max. 60
CD
CAUTION
- Have your qualified workshop check the
cooling system before the winter season to
make sure that the anti-freeze concentra­
tion is adequate for the conditions to be ex­
pected. This applies particularly if you drive
into a colder climate zone.
- To prevent damage to the engine, do not
use a different type of anti-freeze additive if
the approved type of additive is not availa­
ble. In this case use only water and bring
the coolant concentration back up to the
correct level as soon as possible by putting
in the specified additive.
- Always top up with fresh, unused coolant.
- Radiator sealants must not be added to the
coolant.
Topping up coolant
Fig. 214
Engine compartment: Cap of coolant expansion
tank
Checking coolant level
.. Park your vehicle on a level surface .
.. Switch off the ignition .
.. Read off the coolant level on the coolant expan­
page 222, Fig. 211. When the en­
sion tank
¢
0
gine is cold, the coolant level should be be­
N
....
tween the marks. When the engine is warm, it
co
\D may be slightly above the top mark.
Lfl
....
N
Lfl
Frost protec-
tion
%,
min. -25 °C
%
%,
max. -40 °C
%
Checking and topping up fluids
Topping up coolant
Important: The coolant expansion tank must not
be empty ¢(D.
.. Wait for the engine to cool down.
.. Cover the cap on the expansion tank with a
cloth, and carefully unscrew the cap anti-clock­
wise .&_.
¢
.. Add coolant in the correct concentration
page 224 up to the top mark.
¢
.. You should make sure that the fluid level re-
mains stable. If necessary, add more coolant.
.. Screw the cap on again tightly.
Any loss of coolant normally indicates a leak in
the cooling system. Drive to a qualified workshop
without delay and have the cooling system
checked. If there are no leaks in the system, a
loss of coolant can only occur if the coolant boils
and is forced out of the system as a result of
overheating.
A
WARNING
- The cooling system is under pressure. Do
not unscrew the cap on the expansion tank
when the engine is hot: you could be scal­
ded by escaping steam.
- The coolant and coolant additive can be a
health hazard. Store the coolant additive in
the original container in a safe place out of
reach of children - risk of poisoning.
- When working in the engine compartment
be aware that the radiator fan may start
running suddenly, even if the ignition is
switched off- risk of injury!
CD
CAUTION
Do not add coolant if the expansion tank is
empty. Air could have got into the cooling sys­
tem - risk of engine damage! In this case, do
NOT drive on. Obtain professional assistance .
225