Start engine AUDI Q2 2021 Owner´s Manual

Checking and topping up fluids
Refilling AdBlue from a canister
Applies to: vehicles with selective catalytic reduction

#

Fig.
242 Canister with screw-on hose
• Take the cap off the refill canister
o^/n
Prep­
arations on page 293,
<=>(T)
in Preparations on
page 293.

•
Screw the end of the hose (î) clockwise onto
the opening on the canister®.

•
Remove the cap
@
from the other end of the
hose®.

•
Fit the end of the hose (2) onto the filler neck
on the vehicle and turn clockwise as far as the
stop to secure.
• Lift the canister and then tilt it. Keep it tilted
until empty or until no more fluid runs into the
tank.

•
Remove the canister and screw the tank cap
back on
^>page
294, After refilling.
CAUTIO
Use only refill canisters of the correct type ap­
proved for your vehicle. AdBlue may Leak out
if
you
use another system.
© Note
- Your qualified workshop can tell you which
refill canisters are approved
for
your
vehi­

cle.

- Approved refill canisters contain about 5 li­
tres of AdBlue.
Refilling AdBlue from a bottle
Applies to: vehicles with selective catalytic reduction

•
Take the cap off the refill bottle
<=>^
in Prepa­
rations on page 293,
•=>(?)
in Preparations on
page 293.

•
Screw the bottle clockwise onto the filler neck
as far as it will go.

•
To empty the bottle, lightly press the bottom
of the bottle. Keep pressing the bottom of the
bottle until the bottle is empty, or until no
more fluid runs into the tank.

•
Remove the bottle and screw the tank cap back
on
<=>page
294, After refilling.
(J) CAUTION
Use only refill bottles of the correct type ap­
proved for your vehicle. AdBlue may leak out
if
you
use another system.
- Refill bottles are available from qualified
workshops.
- Approved refill bottles contain about 1.9 Li­
tres of AdBlue.
After refilling
Applies to: vehicles with selective catalytic reduction
Closing the filler neck

•
Screw the AdBlue cap clockwise onto the filler
neck until the AdBlue cap clicks audibly
•=> /\
in
Preparations on page 293,
^>(T)in
Prepara­
tions on page 293.

•
Press the left side of the flap to close it (you
should hear it click into place).
After refilling
The vehicle must be driven so that the system
can detect the AdBlue which has been added.
This process can take several minutes.
• If the AdBlue tank had run dry and a range of
0 km was shown on the display, switch on the
ignition for approx. 30 seconds before starting
the engine.
© Note
AdBlue can freeze in the tank at very Low
tem­

peratures. In this case, the system will not
detect AdBlue when you refill and will contin­
ue to indicate a Low
AdBLue
Level. The mes­
sage will disappear as soon as the tank has

thawed.

294

Checking and topping up fluids

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Emission controL
systems
Catalytic converter
Applies to: vehicles with petrol engine
The vehicle must only be used with unleaded pet­

rol,
otherwise the catalytic converter will be ir­
reparably damaged.
Never allow the fuel tank to run completely dry,
as the irregular supply of fuel can cause misfir­

ing.
This allows unburnt fuel to enter the exhaust

system,
which can cause overheating and dam­
age to the catalytic converter.
Diesel particulate filter
Applies to: vehicles with diesel engine
The diesel particulate filter can filter out almost
all soot particles contained in the exhaust gas. In
normal driving conditions the filter is self-clean­

ing.
Should the self-cleaning function of the filter
not be able to operate, e.g. when the vehicle is
continuously used only for short trips, the filter
becomes obstructed with soot and the indicator

lampnf°r
the
diesel particulate filter Lights up

cépage
34.
A WARNING
The exhaust system is very hot when the
vehi­

cle is being driven and after the engine has
been switched off.
- Never touch the tailpipes when they are hot
- risk of burns!
- Because of the high temperatures which can
occur in the emission controL system, do not
park the vehicle where the exhaust can
come into contact with flammable materials
under the car (e.g. on grass or at the forest
edge) - risk of fire!
- Do not apply any underseal agents in the
area around the exhaust system - risk of

fire!

Engine compartment
Working on components in the engine
compartment
Extra caution is necessary when working on com­
ponents in the engine compartment.
Always be aware of the danger of injury and
scalding as well as the risk of accident or fire
when working in the engine compartment (e.g.
when checking and refilling fluids). Always ob­
serve the warnings listed below and follow all
normal safety precautions. The engine compart­
ment of any motor vehicle is a potentially haz­
ardous area
oA-

A WARNING
- Switch off the engine.
-Switch off the ignition.

-Applythe
parking brake.
- On vehicles with manual gearbox place the
gear lever in neutral, on vehicles with auto­
matic gearbox move the selector lever to
position P.
- To avoid the risk of being scalded, never
open the bonnet if
you
see steam or coolant
escaping from the engine compartment.
Wait until no steam or coolant can be seen
before opening the bonnet.
- Wait for the engine to cool down.
- Keep children away from engine compart­
ment.
- Never spill fluids on a hot engine. These
flu­

ids can cause a fire (e.g. radiator
anti­

freeze).
- Take care not to cause short circuits in the
electrical system.
- 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!
- Do not unscrew the cap on the expansion
tank when the engine is hot. The cooling
system is under pressure.
- Protect face, hands and arms by covering
the cap with a large, thick rag to protect
against escaping coolant and steam.
295

Checking and topping up fluids
- Never remove the engine cover panel - risk
of burns!
- If any tests have to be performed with the
engine running, there is an extra safety risk
from the rotating parts, such as the drive

belts,
alternator and radiator
fan,
etc., and
from the high-voltage ignition system.
- Never touch the radiator fan. The electric
additional fan is controlled by temperature
and can start running without warning.
- Applies to vehicles with automatic gearbox:
Never open the throttle inadvertently (for
instance by hand from the engine compart­
ment) if
a
gear is engaged while the vehicle
is stationary with the engine running. The
vehicle will otherwise start moving immedi­
ately and could cause an accident.
- Observe the following additional warnings if
work on the fuel system or the electrical
system is necessary:
- Do not smoke.
- Never work near naked flames.
- Always keep an approved fire extinguisher
immediately available.
- 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
accident or fire.
For
this reason, you must
have the work carried out by
a
qualified
workshop.
© CAUTION
When topping up fluids make sure the correct
fluid is put into the correct filler opening. This
can otherwise cause serious malfunctions or
engine damage.
® For the sake of the environment
Inspect the ground underneath your vehicle
regularly so that any Leaks are detected at an
early stage. If
you
find spots of oil or other

fluids,
have your vehicle inspected in the
workshop.
© Note
located on the other side of the engine com­
partment.
Opening/closing the bonnet

The
bonnet is released from inside the vehicle.

Fig.
243 Detail of footwell on driver's side: Release lever

I

On right-hand drive vehicles* some of the
containers / reservoirs mentioned below are

Fig.
244 Unlocked bonnet: Lever
The wiper arms should be resting on the
wind­

screen:
make sure they are not in a raised
posi­

tion.
Otherwise the paint may get damaged.
Opening the bonnet

•
With the driver's door open, pull the lever un­
der the dashboard in the direction indicated
(arrow)
^>Fig.
243.

*•
Lift the bonnet slightly
•=> A-
•
Press the Lever under the bonnet in the direc­
tion indicated by the arrow
^>Fig.
244. This will
release the arrester hooks.

•
Open the bonnet.
Closing the bonnet
• To close the bonnet, pull it down to overcome
the spring pressure.

•
Then let it drop into the catches; do not press
down
|=>^.
•
296

Checking and topping up fluids

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Markings on oil dipstick
^>Fig.
246

®

CD

(D

0
When the oil level is near the marking
(Î)

you must top up the engine oil. Please refer

to-=>®.

Do NOT add engine oil.
Do NOT add engine oil.
Drive to a qualified workshop without delay
and have the engine oil changed
•=>©.

Topping up the engine oil
- Unscrew the cap
"fc^
^>Fig.
247 from the
oilfill­

er opening
^>page
297, Fig. 245.
-Carefully add 0.5 Litres of suitable engine oil

^>
page 297.
- After two minutes check the oil level once

again.

- If the oil level is too low, add a smaller quantity
of engine oil. The level must always be below
the marking (5)
<^Fig.
246
<=>©.

- Screw the oil filler cap
*£/;
back on and push
the dipstick all the way in.
A WARNING
- Ensure that no engine oil comes into contact
with hot engine components when topping

up:
this could cause a fire.
- The oil filler cap must be properly closed to
prevent oil from squirting onto the hot en­
gine or exhaust system while the engine is
running - risk of fire!
- Wash your skin thoroughly if it comes into
contact with engine oil.
- The engine oil must never drop below the
marking®
^>Fig.
246- risk of engine dam­

age!

- When topping up the engine oil, make sure
that the oil level is not above the marking

@
^Fig.
246, as this may result in damage
to the catalytic converter or to the engine.
Do NOT start the engine. Contact a qualified
workshop to extract the engine oil if neces­
sary.
- Applies to vehicles which have an oil
dip­

stick with area
(3)^
Fig. 246: If you run your
vehicle on diesel fuel of poorer quality than
EN 590 standard
fuel,
the fuel can get into
the engine oil. In this case, the oil level
gradually rises and the quality of the engine
oil decreases. Once the oil level has reached
the marking
@
or the indicator lamp
E

has come on, the engine oil level must not
be corrected by extracting the surplus oil -

risk
of engine damage! The engine oil must
be changed
^>page
34.
- No additives should be used with engine oil.
Any damage caused by the use of such
addi­

tives would not be covered by the factory
warranty.
© For the sake of the environmen
- Never pour engine oil down drains or into
the ground.
-Always observe statutory requirements
when disposing of empty oil canisters.
© Note
Depending on
how
you drive and the condi­
tions in which the car is used, oil consumption
can be up to 0.5
Itr./lOOO
km. Oil consump­
tion is likely to be higher for the first 5,000

km.
The engine oil Level must be checked at
regular intervals, preferably when refuelling
and before setting off on a long trip.
Cooling system
Coolant
The engine cooling system is filled at the factory
with a mixture of conditioned water and coolant
additive. This coolant must not be changed.
The coolant level is monitored by a warning lamp
|
<^page
30. However, we recommend that it
should be checked occasionally.
If you do need to top up the coolant, use a mix­
ture of water and coolant additive. We recom­
mend mixing coolant additive with distilled wa­
ter.
299

Checking and topping up fluids
A WARNING

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- 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!
Brake fluid
© CAUTION
Do not add coolant if the expansion tank is
empty. Air could have got into the cooling
system - risk of engine damage! In this case,
do NOT drive on. Obtain professional assis­

tance.

- 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.

ëB

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DOT
4
A

•9
o
o
:>
li-

Fig.
249 Engine compartment: Cap of brake fluid reservoir
Please refer to the safety notes
^page
295,
Working on components in the engine compart­
ment.
Checking brake fluid level
Read off the brake fluid level on the brake fluid
reservoir
^>page
297, Fig. 245. The brake fluid
level must be between the MIN and MAX marks

<=>A.

The brake fluid
level
is also automatically moni­

tored.

In right-hand drive vehicles the brake fluid reser­
voir is on the other side of the engine compart­
ment.
Changing brake fluid
Have the brake fluid changed regularly by a quali­
fied workshop.
WARNING
-If the brake fluid Level is under the MIN
mark, the effectiveness of the brakes and
therefore the safety of the vehicle may be
impaired - risk of accident! Do not drive on.
Obtain professional assistance.
- Heavy use of the brakes may cause a vapour
lock if old brake fluid is left in the system.
This would seriously impair the effective­
ness of the brakes and the safety of the car
- risk of accident!
© CAUTION
- If the brake fluid level is above the MAX
mark, brake fluid may escape via the cap on •
301

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
© CAUTIO
-The anti-freeze concentration must be
matched to the climate of the country in
which you are driving. If the concentration
is too
high,
damage to the car may result.
- Never put in radiator anti-freeze or other
additives.
- Never use washer fluid which contains paint
thinners or solvents as it can damage the
paintwork.
Service interval display

The
service interval display detects when the
next
service
is due
for
your vehicle.
There are two service interval dispLay levels:
- Inspection or oil change reminder: After a cer­
tain mileage, a service reminder will appear in
the instrument cluster dispLay each time the ig­
nition is switched on/off. The distance or time
remaining will be shown briefly.
- Inspection or oil change due: When your
vehi­

cle is due for an inspection, oil change or
both,

the corresponding reminder Inspection
due!,

Oil change due! or Oil change and inspection

due!
will appear briefly after you switch the ig­
nition on/off.
Checking the service intervals
On the infotainment system, you can look up the
distance and time remaining until the next oil
change or next service inspection. Select the
fol­

lowing on the infotainment system:
|MENU|
but­
ton > Car
>
left control button > Servicing &
checks
>
Service intervals.

Applies
to: vehicles with flexible oil change service
You cannot check the service interval on a new
vehicle until it has been driven for about 500 km.
Qualified workshops reset the service interval af­
ter the oil is changed. The distance to the next oil
change is initially displayed based on the driving
profile prior to the oil change. Your own personal
driving profile is used subsequently to calculate
the remaining distance. Frequent cold starts or
short trips place extra demands on the engine oil
with the result that the oil has to be changed
more often.
Resetting the display
Your qualified workshop resets the service inter­
val display after each service.
It is very important that you reset the oil change
dispLay if
you
change the oil yourself. The
next
oil
change will be due after
a
fixed service interval.
To reset the display, select the following on the
infotainment system:
|MENU|
button > Car
>
left
control button > Servicing & checks
>
Service in­
tervals
>
Reset oil change interval.

(J) CAUTION

- Do not reset the oil change interval display
unless you have changed the oil.
- Keeping to the correct service intervals is
crucial for the operation, service life and re­
sidual value of the vehicle (and especially
for the life of the engine). Services must al­
ways be carried out promptly, even if the
mileage is Low.
304

Mobility
A WARNING

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- Make sure the jack* is stable. If the ground
underneath the jack* is slippery or soft, the
jack can slip or sink in - risk of injury!
- Use only the jack* supplied with your vehicle
to raise the vehicle. If
you
use
a
jack from a
different vehicle, your vehicle may slip off

the
jack - risk of injury!
- Apply the jack* only at the jacking points lo­
cated behind the markings on the door sill
and align it properly. Otherwise there is a
risk of injury since
the
jack* can slip off
sud­

denly if it is not properly engaged.
-The height of the parked vehicle can change
as a result of variations in loading.
- Never start the engine when the vehicle is
on the jack - risk of accident!
- If work has to be done under the vehicle, en­
sure that it is
safely
supported on suitable
stands - risk of injury!
© CAUTION
The vehicle must not be lifted up on its sills.
Only apply the jack*
at
the jacking points loca­
ted behind the markings on the door
sill.
Oth­

erwise your vehicle could be damaged.
Taking off / putting on the wheel

Fig.
264 Wheel: Hexagonal socket for turning wheel bolts

Fig.
265 Wheel: Mounting pin in wheel bolt hole nearest
to the top
Taking off the wheel
• Using the hexagonal socket in the screwdriver
handle (provided in the vehicle's tool kit), un­
screw the top wheel bolt and place it on a clean
surface
<=>Fig.
264.
• Screw in the mounting pin (provided in the ve­
hicle's tool kit) by hand in place of the wheel

boit*Fig.
265.

• Then unscrew the other wheel bolts.
• Take off the wheel
*(£).
The mounting pin
stays where it is.
Putting on the wheel
When putting on a tyre with directional tread

pattern,
refer to
*page
324.
• Put on the wheel, using the mounting pin to
guide it into place
<=>([).

• Screw in the wheel bolts and tighten them
lightly using the hexagonal socket.
• Then unscrew the mounting pin and tighten the
remaining wheel bolt lightly.
• Carefully lower the car with the jack*.
• Tighten the wheel bolts in diagonal sequence
with the box spanner.
The wheel bolts should be clean and turn easily.
Before putting on the wheel, inspect the condi­
tion of the wheel and hub mounting surfaces.
These surfaces must be clean before mounting
the wheel.
A WARNING
Do not use the hexagonal socket in the screw­
driver handle to tighten the wheel bolts. It is
323

Mobility
Removing the bass box (version 2)
Applies to: vehicles with bass box in spare wheel well

You
must remove the bass box before you can
take out the spare wheel*.
f

Fig.
269 Spare wheel
well:
Bass box
Removing the bass box
• Lift the floor panel
*page
324, Fig. 266.
•
Pull
the
catch
Q^F/g.
269 towards the cable.
• Press the retaining tab © down.
• Unplug the connector © and move the discon­
nected cable clear to one side.
• Unscrew
bolt
(4).
• Carefully take out the bass box.
Installing the bass box
• Carefully place the bass box in the well of the

rim.
Make sure that the inscription "FRONT" on
the bass box points to the front of the vehicle.
• Plug the connector back in again.
• Push the catch © back towards the bass box.
• Secure the bass box with the screw.
• Fold the floor panel back down.
Note
The bass box can be fitted even if there is no
wheel in the spare wheel
welL.

Jump-starting
Before starting the engine
If
necessary,
the engine can be started by con­
necting it to the battery of another vehicle.
If the engine fails to start because of
a
dis­
charged battery, the vehicle battery can be
con­

nected to the battery of another vehicle to start
the engine. Suitable jump leads are required.
Both vehicle batteries must be rated at 12 V. The
capacity (Ah) of the booster battery should not
be significantly lower than that of the discharged
battery.
Jump leads
The jump Leads must be heavy enough to carry
the starter current. Refer to the details given by
the manufacturer.
Only
use
jump leads with insulated battery
clamps.
Positive cable - usually red.
Negative cable - usually black.
WARNING
- When it is discharged the vehicle battery
can freeze at temperatures around 0°C. A
frozen vehicle battery must first be thawed
out before connecting the jump leads - risk
of explosion and chemical burns! After
jump-starting the vehicle, drive to a quali­
fied workshop without delay and have the
vehicle battery checked.
- The engine compartment is a potentially
hazardous area and working here can lead
to serious injuries. Before carrying out any
work in the engine compartment please
read and observe the warnings
*page
295.
- Incorrect handling of the jump leads may
result in the vehicLe battery exploding (risk
of serious injury). Please observe the follow­
ing rules to minimise the risk of injury:
- The non-insulated parts of the battery
clamps must not be allowed to touch. The
jump lead attached to the positive terminal
must not touch metal parts of the vehicle:
this can cause short circuiting.
- Position the jump leads in such a way that
they cannot come into contact with any
moving parts in the engine compartment.
- Do not lean over the vehicle battery - risk of
chemical burns!
- The screw plugs on the battery cells must be
screwed in firmly.
326

Mobility

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- Keep sparks, flame and lit cigarettes away
from vehicle batteries: the gases given off
can cause an explosion.
- Do not attach the negative cable to parts of
the fuel system or to the brake pipes.
© CAUTION
- The vehicles must not touch each other,
otherwise electricity could flow as soon as
the positive terminals are connected and
the boosting battery could be discharged.
- If the jump leads are not connected correct­
ly this can result in serious damage to the
electrical system of the vehicle.
- The discharged vehicle battery must be
properly connected to the vehicle's electri­
cal system.
- Please note that the method described
be­

low for connecting the leads is intended for
jump-starting your vehicle. If jump-starting
another vehicle, you should not connect the
negative lead (-) to the negative terminal of
the discharged battery, but directly to the
engine block or
a
solid metal part bolted to
the engine block. If the battery of the other
vehicle does not have a gas vent, there is a
risk that
a
mixture of oxygen and hydrogen
gas can accumulate and cause an explosion.
© Note
Switch off the car telephone if necessary. De­
tails will be given in the manufacturer's in­
structions for the car telephone.
Starting the engine

The two
jump leads must be connected in the
correct
sequence.

Fig.
270 jump-starting with the vehicle battery of another
vehicle:
®
- Discharged battery, ® - Boosting battery
The vehicle battery is located at the front Left of
the engine compartment. Open the cover to ac­
cess the positive terminal of the vehicle battery.
Please note that the described method of
con­

necting the leads is meant for jump-starting your
vehicle.
Please observe the general notes on the vehicle
battery
*page
302.
Preparations

1.
Please read
*page
326, Before starting the
engine carefully before proceeding.

2.
Apply the parking brake and move the gear
lever to neutral (on vehicles with manual
gearbox) or move the selector lever to
P
(on
vehicles with automatic gearbox).
3. Switch off all electrical equipment and the
ignition on both vehicles.
Connecting and disconnecting the jump
leads

4.
Open the battery cover.
5. Connect one end of the red jump lead to the
positive
terminal®
*Fig.
270 of the dis­
charged battery
© oQ)
in Before starting
the engine on page 327.
6. Connect the other end of the red jump lead
to the positive terminal
©
of the boosting

battery®.

327