2018 AUDI Q3 brake

A WARNING
You should only switch offroad mode on or
switch ESC/ ASR off if your driving abilities
and the traffic conditions perm it. There is a
risk of s lid ing .
- The stabilization function is limited when
offroad mode is switched on . The driving
wheels could spin and the vehicle could
swerve, especially on slick or s lippery road
surfaces.
- There is no vehicle stabilization when ESC/
ASR are switched off.
Hill descent assist
Appl ies to: vehicles with hill hold assist
Hill descent assist makes it possible to drive
down a hill at a constant speed.
Fig. 97 Center console : hill descent assist butto n
• To switch the hill descent assist on, press the
~ button in the center console c} fig. 97. The
LED in the button turns on.
• Press the button again to switch it off. The LED
in the button turns off .
Hill descent assist brakes all four whee ls auto ­
matically in order to limit speed when driving ei­
ther forward or reverse on hills with a grade up to
approximately 50% .
When hill descent assist is on, the speed your ve­ hicle was traveling when it entered the hill is
maintained . It is only possible to switch on the
assist when driving slower than 37 mph (60 km/
h). The assist begins shortly after you start driv-
e '.:: ing and continues up to approximate ly 19 mph
N r--. (30 km/h) . T he driver can increase or decrease N .... 0 0 ::, (X)
Intelligent Technology
the vehicle speed within these limits by pressing
the accelerator or brake pedal.
However, there must be enough tract ion. Hill de­
scent assist
cannot function as expected, if for
example the hill is icy or if the surface is loose
¢,&. .
A blinking indicato r light. in the instrument
cluster will indicate if the system if actively regu­
lating a specific speed up to approximately
19 mph (30 km/h). The indicator light stays on
continuously when in the ready mode.
The system does not work at speeds between 19
and 37 mph (30 and 60 km/h) . The system is
then in ready-mode . This is indicated by the LED
in the button turning on. The system automat i­
cally switched off when you drive faster than 37
mph (60 km/h) . The LED will also turn off in this
scenario .
Hill descent assist is automatically activated un­
der the following conditions:
- the LED in the button turns on
- the vehicle speed is lowe r than 19 mph (30 km/
h)
- the incline angle is at least around 10%
A WARNING
-
-Always adapt your speed to the weather,
road and traffic conditions. Do not let the
increased safety provided tempt you into
taking risks, because this increases the risk
of an accident.
- The hill descent assist system cannot over­
come the laws of physics. Your driving style
must always be adapted to the current road
and traffic conditions .
- Hill descent ass ist may not be able to hold
your vehicle at a constant speed under all
conditions while dr iving on a hill (for exam ­
p le if ground under the vehicle is loose).
Brakes
New brake pads
New brake pads do not achieve their full braking
effect during the first 250 mi (400 km) . They
must be "broken in" first . However, you can
IJ,,
91

Intelligent Technology
compensate for the slightly reduced brak ing
force by pressing firmly on the brake peda l. Avoid
heavy b raking during the break -in per iod .
Wear
Brake pad wear depends largely on the way the
veh icle is driven and on operat ing cond it ions.
This is especially t rue if you are driving frequently
in the city and on c urves or with a sporty driving
style.
Operating noise
Noises may occur when br aking depend ing on the
speed, b raking force and outs ide cond itions such
as temperature and humidity.
Effect of water or road salt
I n ce rtain s ituations, fo r example after driving
through water, in heavy ra in, afte r ove rnig ht con­
densat ion or after washing your car, the braking
effe ct can be red uced by moisture or ice on the
b rake rotors and brake pads. The brakes must be
"dr ied" first with a few careful brake applica ­
tions.
At highe r speeds and with the windshie ld wipers
turned on, the brake pads press against the brake rotors for a short amount of time . This action,
which is not felt by the driver, happens at regular
intervals and ensures a better reaction time for
the brakes in wet weather.
The braking effect can also be reduced if you are
driving on salted roads and you do not apply the brakes for long periods of time. The laye r of salt
on the brake rotors and brake pads must be worn
off first when t he brakes a re applied ¢ ,& .
Corros ion
L eaving the vehicle par ked for long periods of
time, low mi leage and avo id ing heavy brak ing
can contribute to corrosion on the brake rotors
and to d irty b rake pads .
If you usually avoid heavy b raking or if there is
corros ion present, occasional heavy braking at
h igh speeds is recommended to clean the brake
rotors and pads¢,&.
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Brake system malfunction
if you no tic e th at the b rake peda l t ravel has sud­
denly gotten larger, then a brake ci rc u it may have
failed ¢.&. .
Low brake fluid level
When the b rake fluid level is low, malfunctions in
t h e b rake system may occur. The b rake fl uid leve l
i s e lec tron ically moni to red.
Brake booster
The brake booster amplifies the pressure you ap­
ply to the brake pedal. It only works when the en­
gine is runni ng ¢ ,& .
.8, WARNING
-On ly app ly the bra kes for the p urpose o f
cleaning the brake sys tem w hen road and
t raffic conditions permi t. You mus t not en­
danger other roa d users . This increases the
risk of an accident.
-
- Never let the ve hicl e roll whi le the engine is
stopped because t his increases the risk of an
accident .
(D Note
- Never let the brakes "rub'' by pressing the
peda l lightly when braking is not actually
necessary . This causes t he b rakes to over ­
heat and increases braking distance and
causes wear.
- Be fore driving downhill a long d istance on a
steep hill, decrease your speed and select a lower gear. This makes use of the engine
brak ing effect and relieves the brakes . If
you need to bra ke add itiona lly, bra ke in in­
te rvals and not cont inuous ly.
(D Tips
- If the brake booster is not working, you
must press the b rake peda l with much more
forc e than normal.
- If you retrofit your veh icle with a front spo il­
er , wheel covers or sim ila r i tems, make su re
t h at the air flow to the fro nt wheels is not
inter rup ted. O therwise t he b rake system
c an be come too hot.

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With th e engin e switched off
The vehicle battery will d rain if yo u use I nfota in­
ment f unctions such as listening to the radio
while the engine is switched off .
The vehicle 's ability to start may be impaired by
the energy use, a message will appear in the In­
fotainment system disp lay .
The message ind icates that the system will
switch off au tomati cally soon. If you wou ld like
to continue using the funct ions, you must s tart
the engine.
With the engine running
Although electrical energy is gene rated whi le
d riving, the vehicle battery can drain. This can
h appen if l ittle energy is gene rated but much is
used, and the charge leve l of the veh icle ba ttery
is not optima l.
To restore the ba lance of energy, components
that requ ire large amo unts of energy are tempo­
r ar ily scaled bac k or switched off. Heating sys­
tems in part icular requi re a g reat deal of energy.
If
yo u notice, for example, that the seat heating*
or rear window defogger is not working, then it
has been temporarily reduced or switched off.
These systems are available again as soon as the
e nergy supply has been restored.
In addition, you may notice that the idle speed
has slightly increased. That is norma l and no
cause for concern. By increasing the idling speed,
the add itional required energy will be generated
and the vehicle battery will be cha rged.
Notice about data
recorded by the Event
Data Recorder and
vehicle control modules
Event Data Recorder
This vehicle is equipped with an Event Data Re­
corder (EDR). The main purpose of an EDR is to
record, in certain crash or near crash-like situa­
tions, such as an a irbag deployment or hitting a
road obstacle, data that will assist in understand­
in g how a veh icle's systems performed. The EDR
Intellig ent Technology
is des igned to record data related to vehicle dy ­
namics and safety systems for a short period of
t ime, typ ica lly 30 seconds or less. The EDR in this
vehicle is designed to record such data as:
- How various systems in your vehicle were oper ­
ating;
- W het her o r not the drive r and passenge r safety
be lts were buckled/fastened;
- How far (if at all) the driver was depressing the
accelerator and/or brake pedal; and,
- How fast the vehicle was traveling.
These data can help provide a better understand­
i ng of the circumstances in wh ich crashes and in­
j u ries occur. NOT E: EDR da ta a re recorded by your
vehicle on ly if a non-trivial crash s ituation occurs;
no data are re co rded by the E DR under normal
driving conditions and no persona l data (e .g .,
name, gender, age, and crash location) are re­
corded. However, other parties, such as law en­
forcement, could comb ine the EDR data with the
type of personally identifying data rout inely ac­
quired during a crash investigation .
To read data recorded by an EDR, special equ ip­
ment is required, and access to the vehicle or the
EDR is needed. In addition to the ve hicle manu­
fact urer, other pa rt ies, such as law e nforcement,
that have the special eq uipment, can read the in­
fo rmat ion if they have access to the vehicle or the
ED R.
Some state laws restrict the retrieval o r down­
load ing of data sto red by ED Rs installed in a ve hi­
cle for the exp ress purpose of retriev ing data af­
te r an a ccident or cras h event without the ow n­
er's consent .
Audi will not access the EDR and/or sim ila r data
o r give it to others -
- unless the ve hicle owner (or lessee if the vehi­
cle has been leased) agrees; or
- upon the official request by the police; or
- upon the order of a court of law or a govern-
ment agency; or
- for the defense of a lawsuit thro ugh t he judicia l
discovery process.
- Audi may a lso use the data for research abo ut
veh icle operation and safety performance or .,,.
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critical areas of the body . Improper seating posi­
tions also increase the risk of serious injury and
death when an airbag deploys and strikes an oc­
cupant who is not in the proper seating position.
A driver is responsible for the safety of all vehicle
occupants and especially for children . Therefore:
~ Never allow anyone to assume an incorrect
seating position when the vehicle is being used
c> &, .
The following bulletins list only some sample po­
sitions that will increase the risk of serious injury
and death. Our hope is that these examples will
make you more aware of seating positions that
are dangerous .
Therefore, whenever the vehicle is moving:
-never stand up in the vehicle
- never stand on the seats
- never kneel on the seats
- never ride with the seatback reclined
- never lie down on the seats
- never lean up against the instrument panel
- never sit on the edge of the seat
- never sit sideways
- never lean out the window
- never put your feet out the window
- never put your feet on the instrument panel
- never rest your feet on the seat cush ion or back
of the seat
- never ride in the footwell
- never ride in the cargo area
A WARNING
Improper seating positions increase the risk
of serious personal injury and death whenever
a vehicle is being used.
-Always make sure that all vehicle occupants
stay in a proper seat ing pos ition and are
properly restrained whenever the vehicle is
being used.
Driving safety
Pedal area
Pedals
T he pedals must always be free to move and
must never be interfered with by a floor mat or
any other object.
Make sure that all pedals move freely without in­
terference and that nothing prevents them from
returning to their original positions .
Only use floor mats that leave the pedal area free
and can be secured with floor mat fasteners .
If a brake circuit fails, increased brake pedal trav­
el is required to bring the vehicle to a full stop.
A WARNING
--Pedals that cannot move freely can cause loss
of vehicle control and increase the risk of seri­
ous injury.
- Never place any objects in the driver's foot­
well. An object could get into the pedal area
and interfere with pedal function. In case of
sudden braking or an accident, you would
not be able to brake or acce lerate!
-Always make sure that nothing can fall or
move into the driver's footwell.
Floor mats on the driver side
Always use floor mats that can be securely at­ tached to the floor mat fasteners and do not in ­
terfere with the free movement of the pedals.
~ Make sure that the floor mats are properly se­
cured and cannot move and interfere with the pedals
c> &, .
Use only floor mats that leave the pedal area un­
obstructed and that are firmly secured so that
they cannot slip out of position . You can obtain
suitable floor mats from your author ized Audi
dealer.
Floor mat fasteners are installed in your Audi .
Floor mats used in your vehicle must be attached
to these fasteners . Properly securing the floor
101

Driving safety
mats will prevent them from sliding into posi­
tions that could interfere with the pedals or im­
pair safe operation of your vehicle in other ways.
A WARNING
Pedals that cannot move freely can result in a
loss of vehicle control and increase the risk of
serious personal injury.
- Always make sure that floor mats are prop­
erly secured.
- Never place or install floor mats or other
floor coverings in the vehicle that cannot be
properly secured in place to prevent them
from slipping and interfering with the ped­ als or the ability to control the vehicle.
- Never place or install floor mats or other
floor coverings on top of already installed
floor mats. Addit ional floor mats and other
coverings will reduce the size of the pedal
area and interfere with the pedals.
- Always properly reinstall and secure floor
mats that have been taken out for cleaning.
- Always make sure that objects cannot fall
into the driver footwell while the veh icle is
moving. Objects can become trapped under
the brake pedal and accelerator pedal caus­
ing a loss of vehicle control.
Storing cargo correctly
Loading the luggage compartment
All luggage and other objects must be properly
stowed and secured in the luggage compart­
ment.
Fig. 100 Safe load pos itio nin g: place heavy objects as low
and as far forward as possible.
102
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::i 00 OJ
Loose items in the luggage compartment can
shift suddenly, changing vehicle handling charac­
teristics. Loose items can also increase the risk of
serious personal injury in a sudden vehicle ma­
neuver or in a collision.
.,. Distribute the load evenly in the luggag e com­
partment.
.,. Always place and properly secure heavy items in
the luggage compartment as low and as far for­
ward as possible
¢fig . 100 .
.,. Secure luggage using the t ie-downs provided
¢ page 47.
.,. Make sure that the rear seatback is securely
latched in place.
A WARNING
Improperly stored luggage or other items can
fly through the vehicle causing serious per­ sonal injury in the event of hard braking or an
accident. To help reduce the risk of serious personal injury:
- Always put objects, for example, luggage or
other heavy items in the luggage compart­
ment.
-Always secure objects in the luggage com­
partment using the tie-down eyelets and
suitable straps.
A WARNING
Heavy loads will influence the way your vehi­
cle handles. To help reduce the risk of a loss
of control leading to serious personal injury:
-Always keep in mind when transporting heavy objects, that a change in the center of
gravity can also cause changes in vehicle
handling:
- Always distribute the load as evenly as
possible.
- Place heavy objects as far forward in the
luggage compartment as possible.
- Never exceed the Gross Axle Weight Rating
or the Gross Vehicle Weight Rating specified
on the safety compliance sticker on the left
door jamb. Exceeding permissible weight
standards can cause the vehicle to slide and
handle differently.
Ill>-

Checking and Filling
-Never open the cap on the coolant expan­
sion tank when the engine is warm. The
cooling system is under pressure.
- To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
large cloth when opening.
- Do not remove the engine cover under any circumstances. This increases the risk of
burns.
- If tests need to be performed with the en­
gine running, there is additional danger due
to moving components (such as the ribbed belt, alternator and radiator fan) and from
the high-voltage ignition system.
- Do not under any circumstances give gas in­
advertently (for example, by hand from the
engine compartment) if the vehicle is sta­
tionary but the engine is running and a gear
is engaged. Otherwise, the vehicle will start
to move immediately and this could result
in an accident.
- 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.
- To reduce the risk of electric shock and in­
jury, never touch the following components when the engine is running or is being start­
ed:
- Ignition cable
- Other components in the electronic high-
voltage ignition system
- If you must check or perform work on the
engine while it is running:
- Set the parking brake and place the selec­
tor lever in the P (park) position first .
- Always proceed with extreme caution so
that clothing, jewelry or long hair do not
156
become caught in the radiator fan, fan
belt or other moving components or do
not come into contact with hot compo­
nents. Tie back long hair before beginning
work and do not wear clothing that can
hang down into the engine .
- Limit your exposure to exhaust and chemi­ cals to as short a time as possible
¢ &, .
A WARNING
California Proposition 65 Warning:
- Engi ne 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
chemicals known to the State of California
to cause cancer and birth defects or other reproductive harm .
- Battery posts, terminals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.
@ Note
When filling fluids, be sure not to mix the flu­
ids up. Otherwise severe malfunctions and en­
gine damage will occur .
@ For the sake of the environment
You should regularly check the ground under
your vehicle in order to detect leaks quickly. If there are visible spots from oil or other fluids,
bring your vehicle to an authorized Audi deal­
er or authorized Audi Service Facility to be
checked.

Checking and Filling
Engine compartment overview
The most important check points.
Fig. 137 Typical location of the rese rvoir and the engine o il fil le r open ing
(D Coolant reservoir ( - L) ¢ page 162
@ Oil dipstick ¢ page 160
® Engine oil filler opening ('t:::r.) ¢page 160
© Eng ine oil label* w ith VW standard
evpage 158
® Brake f luid reservoir ((0)) ¢ page 163
® Vehicle battery(+) ¢ page 164, evpage 203
(?) Jump start point( -) w ith hex head screw
ev page 164, ev page 203
@ Washer fluid reservoir (O) ev page 165
® Fuse housing c:::> page 199
The oil dipstick (item @) and the engine oil fi ller
open ing (item @) can be located in different po­
sitions depend ing on the engine version.
_& WARNING
Read and follow all WARN INGS before check­
ing anything i n the engi ne compa rtment¢ &.
in Working in the engine compartment on
page 155 .
158
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci­
fications.
The serv ice interval d isplay in the inst rumen t
cluster of your vehicle will inform you when it is
time for an o il change . We recommend that you
have your oi l changed by a n authorized Audi Se rv­
i ce Advisor.
If you must add oil betwee n oil changes, use an
oi l that matches the Audi oil quality standard
li sted on the sticker. The sticker is located at the
front of the eng ine compartment ¢
page 158,
fig. 137 .
Audi re commend s
~Castrol /fg/j;Sf.g;fg f'r Aud i recomme nds Longlife high performance
eng ine oil from Aud i Genuine Pa rt s
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Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheating
and being pushed out of the cooling system.
A WARNING
- The cooling system is under pressure . Do
not open the coolant expansion tank cap
when the engine is hot . This increases the
risk of burns .
- The coolant additive and the coolant can be
dangerous to your health. For this reason,
keep the coolant in the original container
and away from children. There is a risk of
poisoning.
- When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
CD 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
Fig. 141 Eng ine compartment: cap on brake flu id reservoir
Observe the safety precautions ¢ page 155,
Working in the engine compartment .
Checking the brake fluid level
~ Read the brake fluid Level on the brake fluid
reservoir ~
page 158, fig . 13 7. The brake fluid
Checking and Filling
Level must be between the MIN and MAX mark­
ings
~ A .
The brake fluid Level is monitored automatically.
Changing the brake fluid
Have the brake fluid changed regularly by an au­
thorized Audi dealer or authorized Audi Service Facility .
A 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
authorized Audi dealer or authorized A udi
Service Facility for assistance.
- If the brake fluid is old, bubbles may form
in the brake system during heavy braking .
This would impair braking performance and driving safety, which increases the risk of an
accident .
- To ensure the brake system functions cor­
rectly, only use brake fluids that comply
with VW standard 501 14 or
FMVSS-116 DOT 4.
CD Note
- If the brake flu id 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 get any brake fluid on the vehicle
paint, because it will corrode the paint.
Battery
General warnings about batteries
Because of the complex power supp ly, all work
on batteries such as disconnecting, replacing,
etc. should
only be performed by an authorized
Audi dealer or authorized Audi Service Facility
¢ .&,.
The term "vehicle battery " refers to the 12 Volt
battery in your vehicle.
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