2020 AUDI Q3 radiator

83A012721BB
Driving

> The engine will start and the vehicle will then
be ready to drive.
Equipment that uses a lot of electricity is switch-
ed off temporarily when you start the engine. If
the engine does not start immediately, stop the
starting procedure by turning the ignition key to
position © and repeat after 30 seconds.
If it is difficult to turn the key to position @, turn
the steering wheel back and forth slightly to re-
lease the steering lock.
Stopping the engine
> Bring the vehicle to a full stop.
> Turn the key to position @). The engine will
switch off.
Activating the steering lock
Applies to: vehicles with steering lock
The steering lock helps prevent vehicle theft.
> Remove the ignition key.
> Turn the steering wheel until the steering
wheel audibly locks.
Switching the ignition on or off
If you would like to switch the ignition on or off
without starting the engine, follow these steps:
> Switching on: turn the key to position @.
> Switching off: turn the key to position ©.

Z\ WARNING
Never remove the ignition key from the igni-
tion lock while the vehicle is moving. Other-
wise, the steering lock could engage and you
would not be able to steer the vehicle, which
increases the risk of an accident.
General information
Z\ WARNING
—To reduce the risk of asphyxiation, never al-
low the engine to run in confined spaces.
— Never turn off the engine before the vehicle
has come to a complete stop. Switching it
off before the vehicle has stopped may im-
pair the function of the brake booster and

more force to steer and brake the vehicle.
The fact that you cannot steer and brake as
usual may increase the risk of accidents and
serious injuries.
— If you leave the vehicle, switch the ignition
off and take the key with you. This applies
particularly when children remain in the ve-
hicle. Otherwise, children could start the ve-
hicle or operate electrical equipment (such
as power windows), which increases the risk
of an accident.
— Always select the “P” selector lever position
when parking the vehicle; otherwise, the ve-


hicle could roll away.



power steering. You would then need to use

@) Note
— Avoid high engine speed, full throttle, and
heavy engine load if the engine has not
reached operating temperature yet. You
could damage the engine.
— If the engine has been under heavy load for
an extended period of time, heat builds up
in the engine compartment after the engine
is switched off and there is a risk of damag-
ing the engine. For this reason, let the en-
gine run at idle for approximately two mi-
nutes before shutting it off.
G) Tips
— Brief noises are normal when starting and
stopping the vehicle and are no cause for
concern.
—For up to 10 minutes after stopping the en-
gine, the radiator fan may turn on again au-
tomatically or it may continue to run, even if
the ignition is switched off.
— It may not be possible to start the vehicle in
extremely low temperatures.
— Power will be fully available once the engine
is at operating temperature.
Messages
E Engine start system: malfunction! Please
contact Service
There is a malfunction in the engine start system.
Drive immediately to an authorized Audi dealer
83
>

Assist systems

Surrounding area
detection
Sensor overview



Fig. 86 Positions of the outer front sensors
The assist systems analyze the data from various
sensors installed in the vehicle. Depending on the
vehicle equipment, the area in front of and be-
hind the vehicle may be detected @) © fig. 85.
Depending on the vehicle equipment, the follow-
ing sensors may be installed to detect the sur-
rounding area > fig. 86:
— Front radar sensor in the center of the radiator
grille

D_ The locations of the sensors may differ slightly depending
on vehicle equipment.
106
— Radar sensors at the rear corners of the vehicle
— Ultrasonic sensors at the front, rear, and sides
of the vehicle)
Some sensors are installed under vehicle compo-
nents and cannot be seen from the outside.
Display field for the ultrasonic sensors
Depending on the equipment, the display field
for the installed ultrasonic sensors > fig. 85 may
begin at approximately:



@ 4 ft (1.20 m)
@® 3 ft (0.90 m)
@ 5.2 ft (1.60 m)
® 3 ft (0.90 m)
© 3 ft (0.90 m)
ZA WARNING
There are areas around the vehicle that the
sensors cannot detect. Objects, animals, and
people may only be detected with limitations
may not be detected at all. Always monitor
the traffic and the vehicle's surroundings di-

rectly and do not become distracted.


@) Note
— Obstacles may disappear from the measure-
ment range when approaching them, even if
they were already detected. Under certain
circumstances, the detection and display of
certain surfaces and objects may be limited:
— Items and objects above the coverage
area, for example cars parked bumper-to-
bumper, half-open garage doors, or hang-
ing objects that do not touch the ground
— Low obstacles
— Thin or narrow objects, such as barrier
chains, foliage, poles or fences
— Projecting objects, such as trailer draw
bars
— Objects with certain surfaces and struc-
tures, such as fabric

83A012721BB
Assist systems

@) Tips
— The coverage areas of the sensors > fig. 85
are diagrams and do not represent a true-
to-scale image of the sensor ranges. The ra-
dar sensors are designed to detect the left
and right adjacent lanes when the road
lanes are the normal width.
— The sensors and the areas around them
must not be obstructed because this can im-
pair the function of the systems that de-
pend on them. Make sure that the sensors
are free of snow, ice, and other deposits. Do
not use any accessories, stickers, or other
objects that extend into the range of the
sensors.
— Do not use a license plate bracket different
from the one installed by the factory in the
front of the vehicle, because it may impair
the function of some systems.
— The sensors can shift from an accident,
manual force, impacts, or from damage to
the radiator grill, bumper, wheel housing,
or underbody. Do not continue using the as-
sistance systems if the sensors have shifted,
because this is unsafe. Have an authorized
Audi dealer or authorized Audi Service Fa-
cility check their function.
— The function of the sensors may be limited
when light and visibility conditions are poor,
for example when driving into a tunnel,
when there is glare, or when there are re-
flective objects.
— External ultrasonic sensors, such as those in
other vehicles, can interfere with the sen-
sors.
—The side area ©)* is detected and evaluated
when passing. There may have been
changes to the surrounding area after
switching the ignition off and on again, af-
ter opening the doors, or if the vehicle is left
stationary for a period of time. In this case,
the area will appear black until the area has
been detected and evaluated.
— For an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada regulations, see
=> page 259.
CO Vane Mey (TAU

[RAzZ-0211



[RAZ-0381


Fig. 88 Diagram: coverage area of the rearview camera
The assist systems analyze the data from various
cameras installed in the vehicle. Depending on
the vehicle equipment, the following cameras to
detect the surrounding area may be installed:
@ Camera behind the windshield
@ Peripheral cameras on both exterior mirrors
@ Rearview camera in the luggage compart-
ment lid
@ Front peripheral camera in the radiator grille
The rearview camera can only detect the area
marked in red > fig. 88. Only this area is dis-
played on the center display. > A\.

ZA WARNING
There are areas that the cameras cannot de-
tect. Objects, animals, and people may only
be detected with limitations may not be de-
tected at all. Always monitor the traffic and
the vehicle's surroundings directly and do not
become distracted. >

107

Assist systems

CG) Note — Use the image on the display to assist you
only if it shows a good, clear picture. For ex-
— Obstacles may disappear from the measure- ample, the image may be affected by the
ment range when approaching them, even if sun shining into the lens, by dirt on the
they were already detected. Under certain lens, or if there is a malfunction.
circumstances, the detection and display of
certain surfaces and objects may be limited:
— The camera view on the display portrays an
enlarged and distorted image. Under cer-
— Items and objects above the coverage tain circumstances, objects may appear dif-
area, for example cars parked bumper-to- ferent and unclear on the display.
bumper, half-open garage doors, or hang-
ing objects that do not touch the ground
— Low obstacles
—Thin or narrow objects, such as barrier
chains, foliage, poles or fences
— Projecting objects, such as trailer draw
bars
— Objects with certain surfaces and struc-
tures, such as fabric
@) Tips
— The coverage areas of the cameras > fig. 87
and > fig. 88 are diagrams and do not repre-
sent a true-to-scale image of the camera
coverage areas.
— The cameras and the areas around them
must not be obstructed because this can im-
pair the function of the systems that de-
pend on them. Make sure that the sensors
are free of snow, ice, and other deposits. Do
not use any accessories, stickers, or other
objects that extend into the range of the
sensors.
— Do not use a license plate bracket different
from the one installed by the factory in the
front of the vehicle, because it may impair
the function of some systems.
— The camera can shift from an accident, man-
ual force, impacts, or from damage to the
radiator grill, bumper, wheel housing or un-
derbody. Have an authorized Audi dealer or
authorized Audi Service Facility check their
function.
— The function of the cameras may be limited
when light and visibility conditions are poor,
for example when driving into a tunnel,
when there is glare, or when there are re-
flective objects.
108

83A012721BB
Checking and Filling

Engine compartment
General information
Special care is required if you are working in the
engine compartment
For work in the engine compartment, such as
checking and filling fluids, there is a risk of in-
jury, scalding, accidents, and burns. For this
reason, follow all the warnings and general
safety precautions provided in the following in-
formation. The engine compartment is a dan-
gerous area in the vehicle. > A.

Z\ WARNING
— Turn the engine off.
— Switch the ignition off.
— Set the parking brake.
— Select the “P” (Park) selector lever position.
— Allow the engine to cool.
— Keep children away from the engine com-
partment.
— Never spill fluids on a hot engine. These flu-
ids (such as the freeze protection contained
in the coolant) can catch fire.
— Avoid short circuits in the electrical system.
— Never reach into the radiator fan. The fan is
temperature-controlled and can turn on
suddenly, even when the ignition is switched
off.
— Never open the hood when there is steam or
coolant escaping from the engine compart-
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
— The cap on the coolant expansion tank must
never be opened when the coolant is hot.
The cooling system is under pressure. There
is a risk of burns
— To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
thick cloth when opening.
— Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
— Due to the risk of electric shock, never touch
the ignition cable or other components in


the electronic high-voltage ignition system
when the engine is running or is starting.
— Ifa gear is engaged while the vehicle is sta-
tionary and the engine is running, do not
press the accelerator pedal inadvertently.
Pressing the accelerator pedal will cause the
vehicle to move, and this could result in an
accident.
— If inspections or repairs must be performed
while the engine is running, moving compo-
nents (such as the ribbed belt, generator,
and radiator fan) pose an additional risk.
— Set the parking brake first and select the
“P” (Park) selector lever position.
— Always make sure that no parts of the
body, jewelry, ties, loose clothing, and
long hair can be caught in moving engine
components. Before any work, always re-
move any jewelry and/or ties, tie back long
hair, and make sure all clothing fits close
to the body to reduce the risk of anything
becoming caught in engine components.
— Pay attention to the following warnings list-
ed when work on the fuel system or on the
electrical equipment is required.
— Do not smoke.
— Never work near open flames.
— Always have a working fire extinguisher
nearby.
— All work on the battery or electrical system
in your vehicle can result in injuries, chemi-
cal burns, accidents, or burns. Because of
this, all work must be performed only by an
authorized Audi dealer or authorized Audi
Service Facility.
— Limit your exposure to exhaust and chemi-
cals to as short a time as possible.


ZA\ WARNING
California Proposition 65 Warning:
— Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali-
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu-
ids contained in vehicles and certain prod-
ucts of component wear contain or emit

201

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

@) 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