2015 AUDI Q3 brake

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Pedal area
Pedals
The 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
interference 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 fasten­
ers .
If a brake circuit fails, increased brake pedal
travel 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 serious injury.
- Never place any objects in the driver's
footwell. An object could get into the
pedal area and interfere with pedal func­
tion. In case of sudden braking or an ac­
cident, you would not be able to brake or
accelerate!
- 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
attached to the floor mat fasteners and do
not interfere with the free movement of the
pedals.
"' Make sure that the floor mats are properly
secured and cannot move and interfere with
the pedals ~
A,.
Use only floor mats that leave the pedal area
unobstructed 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 .
Driving Safely 99
Floor mats used in your vehicle must be at­
tached to these fasteners. Properly securing
the floor mats will prevent them from sliding
into positions that could interfere with the
pedals or impair 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
properly 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 pedals or the ability to control the
vehicle.
- Never place or install floor mats or other
floor coverings on top of already instal­
led floor mats. Additional 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 clean­
ing.
- Always make sure that objects cannot
fall into the driver footwell while the ve­
hicle is moving . Objects can become
trapped under the brake pedal and accel­
erator pedal causing a loss of vehicle
control. •
•

152 Intelligent technology
Intelligent technology
Notice about data
recorded by the Event
Data Recorder and
vehicle control modules
E ve nt Data Recorder
This vehicle is equipped with an Event Data
Recorder (EDR) . The main purpose of an EDR
is to record, in certain crash or near crash-like
situations, such as an airbag deployment or hitting a road obstacle, data that will assist in
understand ing how a veh icle's systems per­
formed. The EDR is designed to record data
re lated to vehicle dynamics and safety sys­
tems for a short period of time, typically
30 seconds or less. The EDR in this vehicle is
designed to record such data as:
- How various systems in you r vehicle were
operating;
- Whether or not the d river and passenger
safety belts were buckled/fastened;
- How far (if at all) the driver was dep ress ing
the accelerator and/or brake pedal; and,
- How fast the vehicle was traveling.
These data can help provide a better under­
stand ing of the cir cumstances in which crash­
es and injuries occur . NOTE : EDR data are re­
corded by your vehicle only if a non-trivial
crash situation occurs; no data are recorded by
the EDR under normal driving conditions and
no personal data (e.g., name, gender, age,
and crash location) are recorded. However,
other parties, such as law enforcement, cou ld
comb ine the EDR data with the type of per­
sonally identifying data routinely acquired
during a crash investigation.
To read data recorded by an EDR, special
equipment is required, and access to the vehi­
cle or the EDR is needed. In addition to the ve­ hicle manufacturer, other parties, such as law
enforcement, that have the special equip­
ment, can read the information if they have
access to the vehicle or the EDR. Some state
laws restrict the retrieval or down­
loading of data stored by ED Rs installed in a
vehicle for the express purpose of retrieving
data after an accident or crash event without
the owner's consent .
Audi will not access the EDR and/or simi lar
data or g ive it to others -
- un less the vehicle owner (or lessee if the ve ­
hicle has been leased) agrees; or
- upon the official request by the police; or
- upon the ord er of a court of law or a govern-
ment agency; or
- for the defense of a lawsuit through the ju­
dicia l discovery p rocess.
- Aud i may also use the data for research
about vehicle operat ion and safety perform­
ance or provide the data to a third party for
research purposes without identifying the
specif ic vehicle or information about the
identity of its owner or lessee and only after
the recorded vehicle data has been ac­
cessed.
Vehicle control modules
You r vehicle is also equ ipped with a number of
electron ic control modules for various vehicle
systems, such as engine management, emis­
sion control, airbags, and safety belts.
T hese electronic control mod ules record data
during norma l vehicle operation that may be
needed by trained technicians for diagnostic
and repair purposes. The recording capability
of these modu les is limited to data (no sound
is recorded). Only a small amount of data is
actually recorded over a very lim ited period of
t ime, or stored when a system fault is detect­
ed by a contro l modu le. Some of the data
stored may relate to vehicle speed, direction,
o r braking, as well as restraint system use and
performance in the event of a crash. Stored
data can also only be read and downloaded
with special equipment that is directly con-
nected to the vehicle. .,..

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@ Tips
Your vehicle may be equipped with Audi
connect. Your use of certain Aud i connect
features req uires wireless serv ices that are
provided by a third party wireless telecom­
municat ions provider. For details regard­
ing how information obtained through
Aud i connect is collected, processed,
transmitted, used, and shared, please see
your contra ct w ith the wire less telecom ­
municat ions provider and the "About A udi
connect" tab in your vehicle's MMI:
!MENU !
button > Audi connect > About Audi con·
nect .
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of
skidd ing and loss of veh icle control. It works
only when the eng ine is running. ESC detects
certain difficult driv ing s ituations, including
when the vehicle is beginning to spin (yaw) out of cont ro l and helps you to get the vehicle
back under control by select ively brak ing the
wheels, and/or red ucing engine powe r and
p roviding steering assistance to help hold the
ve hicle on the driver's intended course . The in­
dicator light
m in the instrument cluster
blinks when ESC is taking action to help you
control the vehicle.
ESC has limitations.
It is important to remem­
ber that ESC cannot overcome the laws of
phys ics. It will not a lways be able to help out
under all conditions you may come up against.
For example, ESC may not always be able to
h elp you master situat ions where there is a
sudden change in the coefficient of fr iction of
the road surface. When there is a sect io n of
d ry road that is s udden ly cove red with water,
slush o r snow, ESC canno t perform the same
way it would on the dry su rface.
If the vehicle
hydroplanes (rides on a c ush ion of wate r in­
stead of the road surface), ESC wi ll not be
ab le to he lp you steer the veh icle because con-
Int ellig ent technolog y 153
tact with the pavement has been interrupted
and the vehicle cannot be braked or steered .
D uring fast corner ing, particular ly on wind ing
roads, ESC cannot always deal as effectively
with difficult dr iv ing s ituations than at lower
speeds. When towing a trailer, ESC is not able
to help you regain control as it would if you
were not tow ing a trailer.
Always adjust your speed and driving style to road, traffic and weather conditions . ESC can­
not override the vehicle's physical lim its, in­
crease the availab le tract ion, or keep a veh icle
o n the road if road departu re is a result of
driver ina ttent io n. Instead , ESC imp roves the
poss ibility of keep ing the vehicle under con­
trol and on the road during extreme maneu­
vers by using the driver's steering i nputs to
help keep the vehicle go ing in the intended di­
rect ion. If you are traveling at a speed that
causes you to run off the road before ESC can
provide any assistance, you may not experi­
ence the benefits of ESC.
ESC includes and/or works together with the
anti-lock brake system (ABS), brake ass ist sys­
tem, ant i-slip regu lation (ASR), electron ic dif­
ferential lock (EDL), electron ic interaxle d iffe r­
ential lock*/se lective wheel torque co ntrol*
and hill descent assist. ESC is swit ched on a ll
the time. In ce rtain sit uat io ns when yo u need
less traction, you can sw itch off ASR by press­
ing the b utton
[fil ¢ page 155, fig. 13 7. Be
s u re to switch ASR on again when you no lon­
ger need less traction .
Anti-lock braking system (ABS )
ABS prevents the whee ls from locki ng up
when b raking. The vehicle can st ill be stee red
even during hard braking . App ly steady pres­
su re to the brake peda l. Do not pump the ped­
al. A pulsing in the brake pedal indicates that
the system is helping you to brake the vehicle.
Brake a ssis t sy ste m
The brake ass ist system can decrease braking
distance . It increases braking power when the
driver presses the brake peda l quickly in emer­
gency s ituations. You must press and hold the
brake pedal unti l the situation is over. .,,.
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154 Intellig ent technolog y
Anti-slip r egulation (ASR )
ASR reduces engine power when the drive
wheels begin to spin and adapts the force to
the road conditions. This makes it easier to
start, accelerate and drive up hills.
Electronic diffe rential lock (EDL )
The ED L brakes wheels that are spinn ing and
transfers the drive power to the o ther d rive
wheel or whee ls if the vehicle is equipped with
all-wheel drive* . This function is available up
to about 60 mph (100 km/h).
I n extreme cases , ED L automat ica lly switches
off to help keep the brake on the braked whee l
from overheating . EDL wi ll switch on again au­
tomatically when conditions have returned to normal.
El ectron ic inte ra xle diff ere ntial lock */
se lec tive wheel t orque contr ol*
The electronic interaxle differential lock (front
wheel drive) or the select ive wheel torque
control (all-wheel drive) operates when driv­
ing through curves. The front wheel on the in·
side of the curve or both wheels on the inside
of the curve are braked select ively as needed .
This minimizes s lid ing in the front wheels a nd
allows for more p rec ise driving through
curves. The app licab le system may not acti­
vate when driving in wet or snowy conditions .
A WARNING
-ESC, ABS, ASR, EDL, the electronic inter­
axle differentia l lock* /selective whee l
torque control* and the hill descent as­
sist cannot overcome the laws of physics.
Th is is especially important on slippery
o r wet roads . If the systems begin acting to stabilize your vehicle, you should im­
mediately change your speed to match
the road and traffic conditions. Do not let the increased safety provided by
these systems tempt you to take r isks .
Doing so will increase the risk of a loss of
veh icle cont ro l, collision and ser ious per­
sonal injur ies.
- Always adapt your speed to road, traffic
and weather conditions. The risk of los­
ing control of the vehicle increases when
driving too fast , espec ially through
curves and on slippery or wet roads, and
when driving too close to vehicles up
ahead. ESC, ABS, the brake ass ist sys­
tem, ASR, EDL and the electronic inter­
axle d ifferential lock*/selective wheel
torque control* cannot prevent colli­
sions .
- Always accelerate with special care on
even, smooth surfaces such as those that
are wet or covered with ice and snow .
The drive wheels can spin even w ith
these assistance systems t hat cannot al­
ways he lp to reduce the risk of loss of ve­
hicle control.
(D Tips
- ABS and ASR only wo rk correct ly when
all four wheels are equipped with identi­
cal tires. D ifferent tire sizes can lead to a
reduction in engine power.
- You may hear noises when the systems
described are working .
-If the ind icator light DJ or Ell (USA
mode ls)/ lCO)J there may be a malfunction~
page 16.

156 Intellig ent technol ogy
Hill descent assist brakes a ll four wheels auto­
matica lly in order to limit speed when driving
e ither forward or reverse on hills with a grade
up to approximately 50%.
When the hi ll descent assist is on, the current
driving speed, when your vehicle entered the incline is maintained . It is only possib le to
switch on the assist when driving slower than
37 mph (60 km/h). The assist works between
approximately 2 and 19 mph (4 and 30 km/ h) . T he driver can increase or decrease the ve­
h icle speed w ith in these lim its by depressing
the accelerato r o r brake pedal In addition, ve­
h icle steerability is increased d ue to the brak­
ing d istribution when driving in reverse .
There must be however sufficient ground ad­ hes io n. The hill descent assis t can
no t do its
job if the incl ine is icy or if the incline ground
is loose¢ &..
The system does not work at speeds between 19 and 37 mph (30 and 60 km/h) . T he system
i s then in the ready-mode . The diode in the
button will come on. The system automatical­
ly switched off when you drive faster than 37
mph (60 km/h). The diode will go out in this
case.
The flashing indicator lamp
-0-in the instru­
ment cluster indicates whenever the driving
speed is being actively controlled to a certain
speed up to approximate ly 19 mph (30 km/h) .
The indicator lamp lights up continuously
when the system goes into standby mode.
Hill descent assist is automatically activated
under the fo llow ing cond itions:
- the d iode in the button illuminates,
- vehicle speed is be low approximately
19 mph (30 km/h)
- the in cl in e is 10%.
_&, WARNING
- Always adapt your speed to the weather,
road and traffic conditions . Do not let
the increased safety provided tempt you
into taking risks. -
The hill descent assist system cannot
overcome the laws of physics. Your dr iv­
ing style must always be adapted to the
current road and traffic cond itions .
- The hill descent ass ist may not be ab le to
hold your vehicle at a constant speed un­
de r all conditions while driv ing on an in­
cline (for example if ground under the
veh icle is loose).
Braking
What affects braking efficiency?
New br ake p ad s
During the first 250 miles (400 km), new
brake pads do not possess the ir full brak ing
effect, they have to be "broken in" first ¢&. .
You can compensate for this slightly reduced
braking power by pushing harder on the brake
pedal. Avoid heavy b ra ki ng loads dur ing the
break-in pe riod.
Operating conditions and driving h abits
The brakes on today 's automobiles are still
subjec t to wear, depending largely on operat­
i ng condit ions and driving hab its
~ &. -On
vehicles that are either dr iven mos tly in stop­
and -go city t ra ffi c or are dr iven hard, the
brake pads should be chec ked by your author ­
ized Audi dea ler mo re often than specified in
the
Warranty & M aintenan ce booklet. Failure
to have your brake pads inspected can result in reduced brake performance.
On steep slopes, you sho uld use the braking
effect of the eng ine. This way, you prevent un­
necessary wear on the brake system. If you
must use your brakes, do not hold the brakes
down cont inuous ly . Pump the brakes at inter ­
vals .
Oper ating n ois e
Noises may occur when braking depending on
the speed, braking force and outside condi-
tions such as temperature and humidity. .,,.

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Effect of w ate r and ro ad salt
In certain situa tions, for example after driving
through water, in heavy rain, after overnight
condensation or after washing your car, the braking effect can be reduced by moisture or
ice on the brake rotors and brake pads. The
brakes must be dried first with a few careful
brake applications.
At higher speeds and with the windshield wip ­
ers turned on, the brake pads press against
the brake rotors for a short amount of time.
This occurs at regular intervals w ithout the
driver noticing and provides for better brake response time under wet condit ions.
The effectiveness of the brakes can be reduced
when the vehicle is dr iven o n a salt-covered
road and the brakes are not used . Likewise,
you clean
off accumulated sa lt coating from
brake discs and pads with a few caut ious ap­
p lications of the brake¢.&. -
Cor ro sion
There may be a tendency for dirt to build up
on the b rake pads and corrosion to form on
the discs if the car is not dr iven regular ly or
only for short t rips with little use of the
brakes.
If the brakes are not used frequently, or if cor­ rosion has formed on the discs, it is advisable
to clean
off the pads and discs by b rak ing
fi rm ly a few times from a modera tely high
speed¢ .&..
Faults in the brake system
If you should notice a sudden increase in
brake pedal travel, then one of the two brake
circu its may have failed¢&. -
Low brake fluid le vel
Malfunct ions can occur in the brake system if
the brake fluid level is too low. T he brake fluid
level is monitored electronically .
Brake boo ster
The brake booster increases the pressure that
you generate with the brake pedal. It works
only when the engine is running .¢ .&.
Int ellig ent technolog y 157
Brak e lining we ar status
B rake lining wear may be checked by visual in­
spection o f the condition of the brake pads
thro ugh the openings in the wheel. If neces­
sary, the wheel may be removed for this in­
spection
¢ page 218, Changing a wheel.
A WARNING
-New brake pads don't have the best stop­
ping power and must be "broken-in" dur­
ing the initial 100 to 150 miles (150 to
200 kilometers) of normal c ity dr iving .
You can compensate for this by pressing
the brake pedal more firmly. This also
applies la ter when new pads are instal­
led.
- You should perform braking maneuvers
for the purpose of cleaning the brake
system only if road conditions permit .
Other road users must not be put at risk -
you may cause an accident!
- Before descending a steep grade, reduce
speed and shift transmission into a lower
gea r or lower dr iving range. Do not ride
the brakes or hold the pedal down too
long or too often. This could cause the
brakes to get hot and diminish braking
efficiency.
- Do not "ride the brakes" by rest ing your
foot on the pedal when you do not intend
to brake. This may cause the brakes to overheat, p remature wear and increased
s topping distance.
- Unde r ce rtain cl imati c and ope rat ing
conditions such as passing thro ugh wa­
ter, dr iv ing in heavy rain o r after washing
the vehicle, the effectiveness of the
brakes can be reduced. In winte r, ice can
accumu late on the brake pads, lin ings,
discs and drums. Carefully app ly brakes
for a test. Brakes w ill dry and ice coat­
ings w ill be cleaned
off after a few care­
ful brake applicat ions.
- Driving for an extended period of time on
salt-covered roads without using your brakes can a lso affect braking efficiency.
Clean
off accum ulated salt coating from
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158 Intellig ent technolog y
brake discs and pa ds with a few caref ul
brake a pplicat ions.
- If you damage the front s poiler, or if you
insta ll a different spoiler, be su re the air
flow to the front brakes is not obstruct­ ed. Otherwise the brake system could
ov erhe at r educi ng the eff ect iveness of
t h e enti re brak e system.
- Failure of one brake ci rcuit will impair
the braking capability resulting in an in­ creased stopp ing distance. Avoid driv ing
the vehicle and have it towed to the near­
est author ized Audi dealer or qualif ied
wor kshop.
- Never let the vehicle rol l to a stop w ith
the engine shu t off.
- If the brake booster is not working, the
brake pedal must be pressed conside ra­
bly harder to make up for the lac k of
booster assistance.
Electromechanical
steering
The electromechanical steering supports the
driver 's steering movements .
Power steering adapts electronically based on
the vehicle speed.
Ind icator light s and messages
• Steering fault! Do not drive vehicle !
If this indicator light tu rns on and stays on
and this message appears, t he power steering
may have fa iled.
Stop the vehicle in a safe locat ion as soon as
possib le . Do
not continue driving . See your
author ized Audi dealer or other qua lified re­
pa ir facility for assistance .
If the indicator light turns on, the steer ing
may be more d ifficu lt to move or more sensi­
tive than usual. The steer ing may also be at an
angle when dr iving st raight . Drive slowly to you
r authorized Audi dea ler or
qualified workshop to have the ma lf u nction
corrected.
l ;:!" ij Steering lock : S ys tem fault! Please con­
tact de aler.
The re is an elect ron ic steering column lo ck
malfunction .
Drive to an author ized Audi dealer or qualified
r epair fac il ity immediate ly to have the mal­
funct ion corrected.
(D Tips
If the . or ,To n ind icator light only stays
on for a short t ime, yo u may continue dr iv­
i ng.
Driving with your
quattro
Applies to veh icles: w ith all-w hee l d ri ve
With all-wheel drive, all four wheels are driv­
en.
General information
Wi th a ll-w heel d rive, power is dis trib ute d to
all four wheels . This happens automatically
depending on your driving style and the road
conditions at the time . See a lso
¢ page 153.
The all -whee l dr ive concept is des igned for
high eng ine power. Your veh icle is except ion ­
ally powerfu l and has excellent d riving charac­
terist ics both under normal driving conditions
and on snow and ice. Always read and follow
safety precaut ions¢ .&..
Winter tires
When driving in the winter, yo ur vehicle with
all-wheel drive has an advantage, eve n wit h
regular tires. In winter road conditions it may
be advisable to mount winter tires (or all-sea­
son tires) for improved driveability and brak­
ing: these tires must be mounted on
all four
wheel s.
See also ¢ page 210, Winter tires.
Tire chains
Where tire chains are mandatory on certain
roads, this norma lly also app lies to ve hicles

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Driving and
environment
The first 1
1000
miles
(11500 km) and
afterwards
New engine
The engine needs to be run-in during the first
1,000 miles (1 ,500 km) .
For the first 600 mile s (1,000
kilometers ):
.,. Do not use full throttle.
.,. Do not drive at engine speeds that are more
than
2/3 of the max imum permitted RPM .
From 600 to 1 ,000 miles (1,000 to
1,500 kilometers ):
.. Speeds can gradually be increased to the
maximum perm iss ible road or eng ine speed .
During and after br eak-in period
.. Do not rev the eng ine up to h igh speeds
when it is cold. Th is applies whether the
transmission is in N (Neutral) or in gear.
Afte r the break- in peri od
.. Do not exceed max imum eng ine speed un­
der any circumstances .
.. Upshift into the next higher gear
before
reaching the red area at the end of the tach­
ometer scale
c.> page 10.
During the first few hours of driving, the en ­
g ine's interna l friction is higher than later
when all the moving parts have been broken in . How well this break -in process is done de ­
pends to a considerable extent on the way the
ve hicl e is driven du ring the first 1,000 miles
(1,500 k ilome ters).
(D Note
Extremely h igh engine speeds are auto­
mat ica lly reduc ed. However , th ese rpm
lim its are programmed for a n engine well
r u n- in, not a new engine.
Driving and environment 161
@) For the sake of the environment
Do not drive with unnecessarily high en­
g ine speeds - upshifting ear ly saves f uel,
reduces noise and protects the environ­
ment.
New tires
If your vehicle is running on new tires, drive
very carefully for the first 350 miles (500 ki lo­
meters) after fitting.
.&, WARNING
N ew tires tend to be sl ippery and mus t al­
so be "b roken -in" . Be sure to remember
this dur ing the f irst 350 m iles (500 kilo­
meters) . Brake gently . Avoid fo llowing
closely behind other vehicles or other sit­
uations that m ight require sudden, hard
b raking .
Avoid damaging the
vehicle
When you are d rivi ng on poo r roads, or over
cu rbs, steep ramps, etc., make certa in that
low- ly in g parts s uch as spo ile rs and ex ha ust
system parts do not bottom o ut and get dam ­
aged.
Th is is espec ially true for veh icles with low­
s lung chassis (spo rts chas sis)* and fully load ­
ed vehicles.
Catalytic converter
It is very important that your emission con­ trol system (catalytic converter) is function ­
ing properly to ensure that your vehicle is run­
ning in an environmentally sound manner.
.. Always use lead -free gasoline c'.> page 175,
Fuel supply .
.. Never r un the tank down all the way to emp­
ty.
.. Never put too much motor o il in your engine
c.> page 184, 'l::1: Adding engine oil .
.. Never try to push -or tow-sta rt you r vehicle . I),
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