check engine AUDI Q3 2020 Owner's Manual

Checking and Filling

@) Note
— 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 appropriate coolant additive is not
available in an emergency, do not add any
other additive. You could damage the en-
gine. If this happens, only use water and re-
store 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.
— 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.
Checking coolant

= % [RAz-0539]


MIN

Fig. 144 Engine compartment - coolant expansion tank
(diagram): @ cover; @) markings
Follow the safety precautions > page 201, Gener-
al information.
Checking the coolant level
> Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood = page 202.
> Check the coolant level in the coolant expan-
sion tank > page 203, fig. 141 using the outer
208
markings @) > fig. 144. 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.
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. Mixing the coolant additive
with distilled water is recommended.
> Allow the engine to cool.
> Place a large, thick towel on the coolant expan-
sion tank cap.
>» Remove the cover (@) > fig. 144 carefully to the
left > A\.
» Add the correct mixture ratio of coolant
= page 207 up to the upper marking @)
> fig. 144.
> Make sure that the fluid level remains stable.
Add more coolant if necessary.
>» Screw on the cap securely to the right.
Coolant loss usually indicates that there is a leak.
Immediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, coolant loss can re-
sult from the coolant boiling due overheating
and then being forced out of the cooling system.

ZA\ WARNING
— The engine compartment in any vehicle can
be a dangerous area. Stop the engine and al-
low it to cool before working in the engine
compartment. Always follow the informa-
tion found in > page 201, General informa-
tion.
— Never open the hood if you can see or hear
steam or coolant escaping from the engine
compartment. This increases the risk of
burns. The cooling system is under pressure.
When you no longer see or hear steam or
coolant escaping, you may open the engine
compartment with caution.
—When working in the engine compartment,
remember that the radiator fan can switch

83A012721BB
Checking and Filling


on even if the ignition is switched off, which
increases the risk of injury.
— Coolant additive and coolant can be danger-
ous to your health. For this reason, store the
coolant in the original container and away
from children. There is a risk of poisoning.


@) Note
Do not add coolant if the expansion tank is
empty. Air could enter the cooling system and
damage the engine. If this is the case, do not
continue driving. See an authorized Audi deal-
er or authorized Audi Service Facility for assis-
tance.
Brake fluid

BFV-0229|


Fig. 145 Engine compartment: cap on brake fluid reservoir
Follow the safety precautions > page 201, Gener-
al information.
Checking the brake fluid level
Read the brake fluid level on the brake fluid res-
ervoir > page 203, fig. 141. The brake fluid level
must be between the MIN and MAX markings
oA.
The brake fluid level is monitored automatically.
Message
GG / © Brakes: stop vehicle and check brake
fluid level
Stop the vehicle and check the brake fluid level.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance.
Changing the brake fluid
Brake fluid should be changed at regular inter-
vals. Have the brake fluid changed by an author-
ized Audi dealer or authorized Audi Service Facili-
ty. The authorized Audi dealer or authorized Audi
Service Facility will inform you of the replace-
ment intervals.

Z\ WARNING
— If the brake fluid level is below the MIN
marking, it can impair the braking effect and
driving safety, which increase the risk of an
accident. Do not continue driving. See an au-
thorized Audi dealer or authorized Audi
Service Facility for assistance.
— If the brake fluid is old, bubbles may form in
the brake system during heavy braking. This
could impair braking performance and driv-
ing safety, which increases the risk of an ac-
cident.
—The brake fluid in your vehicle must meet
the standard VW 501 14 and is available at
an authorized Audi dealer or authorized
Audi Service Facility. If this brake fluid is not
available, another high-grade brake fluid of
equivalent quality may be used, and it must
meet the U.S. Federal Motor Vehicle Stand-
ard (FMVSS) 116 DOT 4, Class 6.
@) Note
— If the brake fluid level is above the MAX
marking, brake fluid may leak out over the
edge of the reservoir and result in damage
to the vehicle.
— Do not allow any brake fluid to come into
contact with the vehicle paint, because it
will corrode the paint.


Electrical system
If the = or fj indicator light turns on, there is a
malfunction in the generator, the battery, or the
vehicle electrical system.
= Electrical system: malfunction! Safely stop
vehicle >
209

Checking and Filling

Do not continue driving and switch the engine off
=> AX. See an authorized Audi dealer or authorized
Audi Service Facility for assistance.
= Electrical system: malfunction! Restart not
possible. Please contact Service
It will not be possible to restart the engine once
you turn it off. Vehicle functions/driving stability
may be limited. Drive to an authorized Audi deal-
er or authorized Audi Service Facility immediate-
ly.
= Electrical system: malfunction! Please con-
tact Service
Switch off all electrical equipment that is not
needed. Vehicle functions/driving stability may
be limited. Drive to an authorized Audi dealer or
authorized Audi Service Facility immediately.
= Electrical system: low battery charge. Bat-
tery will be charged while driving
The starting ability may be impaired.
If this message turns off after a little while, the
vehicle battery has charged enough while driving.
If this message does not turn off, drive immedi-
ately to an authorized Audi dealer or authorized
Audi Service Facility.

Z\ WARNING
When there is an electrical system malfunc-
tion, vehicle functions may not work and driv-
ing stability may be limited, which increases
the risk of an accident. Stop driving and
switch the engine off. See an authorized Audi
dealer or authorized Audi Service Facility for
assistance.

Battery
Pelee mee eerste)
Because of the complex power supply, all work on
batteries such as disconnecting, replacing, etc.,
should only be performed by an authorized Audi
dealer or authorized Audi Service Facility > A\.
Multiple batteries with different technologies
may be installed in your vehicle:
210
— Vehicle battery (for example, for starting the
engine, basic power supply) > page 211, Lead
battery or > page 211, Other battery types
— Auxiliary battery (for example, for recuperation
or optional equipment) > page 211, Other bat-
tery types
Not running the vehicle for long periods of
time
The battery will gradually drain if the vehicle
does not run for long periods of time. To ensure
that the vehicle can still be started, the electrical
equipment will be reduced or switched off
=> page 89. Some convenience functions, such as
interior lighting or power seat adjustment, may
not be available under certain circumstances.
These convenience functions will be available
again once you switch the ignition on and start
the
engine.
Even when electrical equipment is switched off,
the equipment can still drain the battery if the
vehicle is not driven for long periods of time.
Deep draining results in a chemical reaction that
destroys the inside of the battery. The battery
must be charged every month to prevent this
= page 212. Contact an authorized Audi dealer or
authorized Audi Service Facility for more infor-
mation.
Winter operation
Cold weather places higher demands on the bat-
tery. This results in reduced starting ability. Have
the battery checked by an authorized Audi dealer
or authorized Audi Service Facility before cold
weather begins.

Z\ WARNING
All work on the battery or electrical system in
your vehicle can result in injuries, chemical
burns, accidents, or burns. Because of this, all
work must be performed only by an author-
ized Audi dealer or authorized Audi Service Fa-
cility.

ZA\ WARNING
California Proposition 65 Warning: >

Checking and Filling

Charging the battery


Fig. 146 Engine compartment with battery: connections
for charger and jump start cable
Note the safety precautions > page 201, General
information, > /\ in Battery general informa-
tion on page 210 and > /A\.
Requirement: only use chargers with a maximum
charging current of 14.8 volts. The battery ca-
bles remain connected.
The battery is located in the engine compart-
ment. The ground point ©) is always located on
the vehicle body.
> Switch off the ignition and all electrical equip-
ment.
> Open the hood > page 202.
> Open the cover on the positive terminal
> fig. 146.
> Clamp the terminal clamps on the charger cor-
rectly onto the ground point ©) and the positive
terminal @).
> Insert the power cable for the charging device
into the socket and switch the device on.
> At the end of the charging process, switch the
charger off and pull the power cable out of the
socket.
> Remove the charging device terminal clamps.
> Close the cover on the positive terminal.
> Close the hood > page 202.

ZX. WARNING
— A highly explosive mixture of gases can form
when charging batteries. Only charge the
battery in well-ventilated areas.
— A drained battery can freeze at tempera-
tures around 32 °F (0 °C). Do not charge or
use a frozen or thawed battery. If ice forms,

212

the battery housing can crack and battery
electrolyte can leak out, which increases the
risk of an explosion and chemical burns.
Contact an authorized Audi dealer or author-
ized Audi Service Facility for more informa-
tion.
— Do not connect or disconnect the charging
cable while charging because this increases
the risk of an explosion.

@ Tips
Read all of the manufacturer's instructions
for the charger before charging the battery.
Windshield washer
system

RAZ-0362


Fig. 147 Engine compartment: washer fluid reservoir cap
Follow the safety precautions > page 201, Gener-
al information.
The windshield washer fluid reservoir < contains
the cleaning solution for the windshield and the
headlight washer system > fig. 147, > page 203.
The reservoir capacity can be found in
=> page 262.
To reduce the risk of lime scale deposits on the
spray nozzles, use clean water with low amounts
of calcium. Always add window cleaner to the wa-
ter. When the outside temperatures are cold, an
anti-freezing agent should be added to the water
so that it does not freeze.
Messages
3 Please add washer fluid
Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched off.

83A012721BB
Checking and Filling

@) Note
— The concentration of anti-freezing agent
must be adjusted to the vehicle operating
conditions and the climate. A concentration
that is too high can lead to vehicle damage.
— Never add radiator anti-freeze or other addi-
tives to the washer fluid.
— Do not use a glass cleaner that contains
paint solvents, because this could damage
the paint.
Service interval display
The service interval display detects when your ve-
hicle is due for service.
The service interval display works in two stages:
— Inspection or oil change reminder: after driv-
ing a certain distance, a message appears in the
instrument cluster display each time the igni-
tion is switched on or off. The remaining dis-
tance or time is displayed briefly.
— Inspection or oil change due: if your vehicle
has reached an inspection or oil change interval
or both intervals at the same time, the mes-
sage Inspection due! or Oil change due! or Oil
change and inspection due! appears briefly af-
ter switching the ignition on or off.
Checking service intervals
You can check the remaining distance or time un-
til the next oil change or next inspection in the
Infotainment system.
Select on the home screen: VEHICLE > Settings
& Service > Service intervals.
Resetting the indicator
An authorized Audi dealer or authorized Audi
Service Facility will reset the service interval dis-
play after performing service.
If you have changed the oil yourself, you must re-
set the oil change interval.
Select on the home screen: VEHICLE > Settings
& Service > Service intervals > Reset oil change
interval.
CG) Note
— Only reset the oil change indicator if the oil
was changed.
— Following the service intervals is critical to
maintaining the service life and value of
your vehicle, especially the engine. Even if
the mileage on the vehicle is low, do not ex-
ceed the time for the next service.
213

Emergency assistance

There are some restrictions on the use of the
compact spare tire. The compact spare tire has
been designed specifically for your type of vehi-
cle. Do not replace it with the spare tire from an-
other type of vehicle.
The compact spare tire is located in the luggage
compartment under the cargo floor cover
=> page 240.
The tire pressure must be 61 PSI (420 kPA).
Snow chains
For technical reasons, the use of snow chains on
the compact spare tire is not permitted.
If you have to drive with snow chains and a front
tire fails, mount the spare tire in place of a rear
tire. Install the snow chains on the rear tire that
you removed, and install that in place of the
front tire that failed.

ZA WARNING
— After installing a spare tire, the tire pressure
must be checked as soon as possible.
— Do not drive faster than 50 mph (80 km/h)
with a compact spare tire. Driving faster
than that increases the risk of an accident.
— To reduce the risk of an accident, avoid hard
acceleration or braking and driving fast
around curves with the compact spare tire.
— To reduce the risk of an accident, never drive
with more than one compact spare tire.
— Normal summer or winter tires must not be
mounted on the compact spare wheel rim.

battery that is giving power must not be less
than the capacity of the drained vehicle battery.
Jump start cable
Only use a jump start cable with a large enough
diameter. Note the manufacturer's specifica-
tions.
Only use a jump start cable with insulated termi-
nal clamps.
Positive cable - usually red.
Negative cable - usually black.

ZA WARNING
— A drained battery can freeze at tempera-
tures around 32 °F (0 °C). If the vehicle bat-
tery is frozen, it must be thawed before con-
necting the jump start cables. If it is not,
the risk of an explosion and chemical burns
increases. After jump starting the vehicle,
drive to an authorized Audi dealer or author-
ized Audi Service Facility immediately to
have the vehicle battery checked.
— Read the warnings when working in the en-
gine compartment > page 201.
— Handling the jump start cables incorrectly
may cause the vehicle battery to explode
and lead to serious injuries.
—To reduce the risk of chemical burns, do not

bend over the vehicle battery.


Jump starting
You should only perform the steps that follow if
you have the necessary tools and technical ex-
pertise.
If the engine does not start because the vehicle
battery is drained, you can jump start your vehi-
cle using another vehicle. Jump start cables are
needed to do this.
Both vehicle batteries must have 12 V nominal
voltage. The voltage capacity (Ah) of the vehicle
244
() Note
Jump start cables can cause considerable
damage to the vehicle electrical system if
they are connected incorrectly.
G) Tips
— There must be no contact between the
vehicles, or else voltage could flow when
connecting the positive terminal and drain
the vehicle battery of the vehicle providing
the jump start.
— The drained vehicle battery must be con-
nected correctly to the electrical system.
— Switch off electrical equipment that is not
needed.

Index

Brake fluid
Checking the brake fluid level........... 209
Brakes... 2... eee eee 91
BrakevassiSt': scase < « seme 2s ae a eee eB: 99
Brakerflidl: «2 cso 2 assim 2 a conse oo emai 9 209
Emergency braking function............. 93
Le (0) 94
New brake pads « sisi: ss esos se cees s ween e 91
Break-in security feature.............0004 31
Breaking in
New brake pads « snessis se were sv awa wenn « 91
Newtires. 2... 0.0... cee cece ee eee 221
Browser
refer to Media center...............005 184
Business address...........00--0000eee 166
Cc
California Proposition 65 Warning........ 201
Battery SpecifiCes ¢ 2 cee s vowed pasa as 210
Calllist.. 0... eee eee ee 143,145
Cameras
Coverage areaS...... eee cee eee eee 107
LOCATIONS ics. 6 6 sciewe os wwnee oo eee wo wee 107
Capacities
Fueltank... 00.0.0... cee eee eee ee eee 262
Washer fluid reservoir...............-- 262
Cargo floor......... eee eee eee eee 76
Cargonet.... 2... cece eee ee 76
Car key... eee eee eee eee 32
Car phone
Serial number (IMEI) .................. 150
SWITCHING Olljews « « asus = ayew 2 = gees se ae 149
Car WaShis < cca = = sees 5 ¢ hes oe ees yo cee 234
Catalytic converter..................00. 200
Cell phone
refer to Telephone...........eee eee eae 139
Cell phone compartment
refer to Audi phone box............... 141
Central locking): ss sep 5 sees so eaes ve ees 28
Auto Lock... .. 0... cee eee eee 28
Convenience key............ 0 eee eee ees 33
Convenience opening and closing......... 39
Luggage compartment lid............... 35
Mechanically unlocking and locking....... 30
MESSAGES saris + ¢ Haven o & eee © e ewe oe ews 30
Remote control key... vss ve ewe ee eee o 33
264

SCC: 2 x cusewes o 2 somuses wow sarees 4 o seamen oo awe
Vehicle key
Central locking switch...............0--. 29
Ceramic brakes.........0 00.000 e eee eee 92
Certificationvins «6 cscs x + emcee ve eoenene ve esecene 259
Charging
refer to Power sourceS.........-- 00s eee 73
Charging the battery (mobile devices). 141, 182
Child safety lock
Power WINdOWS........ 0. eee cece e ee eens 38
ReardOOrSicn s = wey sv aes s Hom oo Kee ee 38
Child
safety seats................-00000- 67
Securing to the top tether anchor........ 71
Securing with a safety belt.............. 70
Securing with LATCH................00. 69
Cleaning... 2.2... . cee eee eee eee 234
Cleaning Alcantara.............-.00000. 237
Cleaning artificial leather............... 237
Cleaning carbon components........ 236, 237
Cleaning controls:. « sw se ewes «sens oo ov 236
Cleaning decorative parts andtrim........ 236
Cleaning exhaust tail pipes.............. 236
Cleaning plastic parts.................. 236
Cleaning textiles...................00, 237
Climate control system...........2.0000. 78
Closing
Automatic luggage compartment lid...... 36
Convenience closing.............+-.04. 39
Engine compartment lid............... 202
Luggage compartment lid............... 35
Luggage compartment lid with foot motion . 37
Panoramic glass roof.............000005 40
Sunshade (roof) ......... 0.000 e eee eee 40
WINdOWSS x 2 ones 5 2 awe & 2 yasew ¢ e came * 38
Cockpit GIMMMING e: « 2 ses ¢ ¢ owes ¢ o ews a ys 48
COCKPIT OVEFVIEW)'s « x eas 5 2 neue ot ees ge 6
Color number............ 2.02. cece eee 261
Compact spare tire...............000004 243
Compartments..............0 0.0.00 0005 74
Compass inthe mirror...............00-. 52
Compliance tse: « « ssccav: so aes Configuration wizard.................00. 18
CONMECE cams + nary & + ewe a x mew at eR eee 152
Data:plans). « » svat « 0 wenn » 4 sae 6 2 sommes 155
Data Privacy.... 0.2... cece eee eee eee 255