2021 AUDI Q2 light

Checking and topping up fluids
Coolant additive
The coolant additive contains anti-freeze and cor­
rosion protection agent. Only use one of the
fol­

lowing coolant additives. It is possible to mix
these additives.
Topping up coolant
Coolant additive
G13
G12++
Specification

TL774J

TL 774
G

The amount of coolant additive which needs to
be mixed with the water depends on the temper­
atures to be expected in the winter season. If the
anti-freeze concentration is too Low, the coolant
can freeze and cause engine damage.
Hot regions
Cold regions
Coolant
additive

min.
40%
max. 45 %

min.
50%
max. 55 %
Frost protec­
tion

min.-25°C

max. -40 °C

(T)
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.

Fig.
248 Engine compartment: Markings on coolant ex­
pansion tank
Please refer to the safety notes
^page
295,

Working on components in the engine compart­
ment.
Checking coolant level

•
Park the vehicle on a level surface.

•
Switch off the ignition.

•
Read off the coolant level on the coolant ex­
pansion tank
^>Fig.
248. When the engine is

cold,
the coolant level should be between the
marks. When the engine is warm, it may be
slightly above the top mark.
Topping up coolant
Important: The coolant expansion tank must not
be empty
•=>([).

•
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
<=>
/K.

*-
Add coolant in the correct concentration

tapage
299 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.
300

Checking and topping up fluids
the reservoir in certain circumstances and
cause damage to the vehicle.
- Brake fluid must not be allowed to come in­
to contact with the vehicle's body, other­
wise it will attack the paintwork.

©
For the sake of the environment

1?
Batteries contain toxic substances including
sulphuric acid and
lead.
PLease contact a
qualified workshop if
you
have any questions.
Battery
General warnings for batteries
Because of the complexity of the power supply,
any battery work, such as disconnection, replace­
ment, etc. must be carried out by
a
qualified
workshop
^A-

The term "vehicle battery" refers to the 12 Volt
battery in your vehicle.
Explanation of warnings on vehicle battery:

m

Wear safety glasses!
Battery acid is extremely corrosive. Wear
protective gloves and safety glasses.

A

Keep open flames, sparks, uncovered
Lights and lit cigarettes away from the
battery!
A highly explosive mixture of gases may

~\
be given off when the battery is under
charge!
Keep children away from batteries and
battery
acid.

A WARNING
Any work on the batteries and electrical sys­
tem in your vehicLe entails a risk of injury and
chemical burns in addition to danger of
acci­

dent or fire. For this reason, you must have
the work carried out by a qualified workshop.
©
CA UTION

If the car is left standing for long periods,
protect the battery from frost. The battery
will be damaged irreparably if it is allowed to
freeze
^>page
303, Charging the vehicle
bat­

tery.

Vehicle battery

The
term "vehicle battery" refers to the 12 Volt
battery in your vehicle.
If the vehicle is not used for long periods
If
you
do not drive your vehicle for a period of
several days or weeks, the power management
will gradually shut off the on-board systems one
by one, or reduce the amount of current they are

using.
This limits the amount of power consumed
and helps to ensure reliable starting even after a
long period
^>page
149. Certain convenience fea­

tures,
such as interior lighting or electric seat ad­
justment, may not be available. These functions
will be restored when you switch on the ignition
and start the engine.
Even though some systems are deactivated auto­
matically, certain electrical equipment continues
to draw current even when the ignition is off. If
the vehicLe is left standing for long periods, this
can result in total battery discharge. If the
vehi­

cle battery is allowed to discharge completely, an
internal
chemicaL
reaction damages the battery
irreparably. To avoid this, the vehicle battery
should be recharged at Least once a month

^>page
303. PLease contact a qualified workshop
if
you
have any questions.
Winter conditions
Cold weather is very hard on the vehicle battery.
The starting capacity may be reduced as a result.
For this reason, you should have the vehicle bat­
tery checked by
a
qualified workshop before the
start of winter.
302

Checking and topping up fluids
Charging the vehicle battery

CO

< o rN
iv
rN
t-H
o < 00

Fig.
250 Engine compartment: Terminals for jump leads
and battery charger
Please refer to the safety notes
^>page
295,
Working on components in the engine compart­
ment.
Important: Only use chargers with a maximum
charge voltage of 14.8 V (the battery cables do
not have to be disconnected).
The battery is Located in the engine compart­
ment. The earth
point 0
is always on the
vehi­

cle's body.

•
Note the warnings
•=>/^
in General warnings
for batteries on page 302 and
Q/\.

•
Switch off all electrical equipment and the
igni­

tion.

•
Open the bonnet
^>page
296.

•
Open the battery cover
^Fig.
250.

•
Connect the charger cables to the positive ter­
minal (+) and the earth point on the body (-)
(not the negative terminal on the battery) as

specified.

•
Connect the battery charger to the mains and
switch it on.

•
After charging the battery: switch off the bat­
tery charger and disconnect the mains cable.

•
Detach the charger cables from the terminals.

•
Fold the cover back onto the battery in its cor­
rect position.

•
Close the bonnet
^>page
296.
A WARNING
- A highly explosive mixture of gases may be
given off when the battery is under charge.
Only charge the vehicle battery in a well
ventilated area.
- When it is discharged the vehicle battery
can freeze at temperatures around 0°C. You
must not use a vehicle battery which has

frozen,
even after it has thawed, because
the ice may have cracked the battery casing
and allowed the battery acid to escape - risk
of explosion and chemical burns! Please
contact
a
qualified workshop if
you
have any
questions.
- Do not connect or disconnect the charging
cables during the charging process - risk of

explosion!

© Note
- Use only the terminals in the engine com­
partment to charge the vehicle battery.
- Before you charge the vehicle battery, al­
ways read and follow the manufacturer's in­
structions for using the battery charger.

Wind
screen washer

Fig.
251 Engine compartment: Cap of windscreen washer
container
Please refer to the safety notes
^>page
295,
Working on components in the engine compart­
ment.
The container for the windscreen washer
&
con­

tains the cleaning fluid for the windscreen, the
rear window* and the headlight washer system*

Opage
297, Fig. 245.
For
the container capacity,
please refer to
opage
343.
Clean water should be used when topping up. If
possible, use soft water to prevent scaling on the
washer
jets.
Always add washer fluid to the wa­
ter. In cold weather you should add anti-freeze to
the water to prevent it from freezing. •
303

Wheels

CO

< o rN
iv
rN
•-i

00
On tyres with a directional tread pattern, note
the direction of rotation indicated on the sidewall

opage
324.
Concealed damage
Damage to tyres and rims is often not readily
visi­

ble.
If you notice unusual vibrations
or
the car
pulling to one side, this may indicate that one of
the tyres is damaged. Reduce your speed imme­
diately. Inspect the tyres for damage. If no exter­
nal damage is visible, drive slowly and carefully
to the nearest qualified workshop and have the
car inspected.
A WARNING
Insufficient tread depth or different tread
depths on different wheels reduce safety. This
is particularly evident in vehicle handling,
when there is a risk of aquaplaning in deep
puddles of water and when driving through
corners. Braking is also adversely affected -
risk of accident!
Tyre pressure



®-

CGOO
Audi

SO)

EÛ

T—

Fig.
253 End face of driver's door: Sticker listing the tyre
pressures
The correct inflation pressures for tyres fitted at
the factory and for the compact temporary spare

wheel*
are specified on a sticker. The sticker

<=>Fig.
253 is on the end face of the driver's door.

(A)
Tyre size

(B)
Tyre pressure for the front wheels

©
Tyre pressure for the rear wheels

©
Tyre pressure if vehicLe is partially Loaded

(2)
Tyre pressure (comfort setting)* if vehicle is
partially loaded (not available on all vehicles) If a
maximum speed is given, it must not be excee­

ded.

(3) Tyre pressure if vehicle is fully loaded
(4) Tyre pressure for the compact temporary
spare wheel*
If you intend to drive the vehicLe with a partial
load (no more than three people travelling in the
vehicle), select the specified tyre pressure
©.

However, if you prefer an extra-smooth
ride
you
can select the comfort setting* (2). Should you
wish to drive with a full
load,
you must increase
the tyre pressure to the specified maximum (3)
Checking / adjusting the tyre pressures

•
Check the tyre pressures at least once a month

and,
in addition, before starting a long journey.

•
The tyre pressures should only be checked
when the tyres are cold. The slightly raised
pressures of warm tyres must not be reduced.

•
Refer to the sticker
•=>
Fig. 253 for the correct
tyre pressures according to the load the vehicle
is carrying.

•
If necessary, adjust the tyre pressure.
• Applies to vehicles with tyre pressure loss
indi­

cator : Store the new tyre pressures

^>page
311.
• Check the pressure of the spare
wheeLVcom-

pact temporary spare wheel*. Keep the spare
tyre inflated to the highest pressure approved
for the tyre.
WARNING
Always adjust the tyre pressures to match
your driving style and the load the vehicle is

carrying.

- Excessive Loads can cause you to Lose control
of the vehicle - risk of accident!
- Under-inflated tyres flex more and can over­
heat at high speeds or when the vehicLe is
carrying a heavy Load. This could cause a
tyre blow-out and you could lose control of
the vehicle - risk of accident!
307