brake AUDI Q3 2017 Owner´s Manual

Driving Emergency mode
Applies to: ve hicles w ith a utomat ic t ransm iss io ns
In the event of a system malfunction, there is an
emergency program.
If all of the selector lever positions are highligh t­
ed with a light background in the instrument
cluster display, there is a system malfunction and
the S tronic transmission is running in the emer­
gency program. The vehicle can still be driven in
emergency mode, but only with reduced speed
and not in all gears. In some cases, the vehicle
cannot drive in reverse.
@) Note
If the transmission runs in emergency mode,
drive to an authorized Audi dealer or author­
ized Audi Service Facility immediately to have
the malfunction corrected.
Transmission malfunction
A pp lies to: ve hicles w ith a uto mat ic t ra n smi ssio ns
• Transmission overheating! Please stop vehi­
cle!
The transmission is too hot and can become dam­
aged. Stop and let the transmission cool with the
engine running (at idle) in the P selector lever po­
sition. Then the indicator light and the message
tur n off, drive to an authorized Audi dealer or au­
thorized Audi Service Facility immediately to have
the malfunction corrected. If the indicator light
and the driver message do not turn off, do not
continue driving . See an authorized Audi dealer
or authorized Audi Service Facil ity for assistance.
72
Selector lever emergency release
App lies to : vehicles wi th automatic transm issions
If the vehicle's power supply fails, the selector
lever can be released in an emergency .
Fig. 77 Selector leve r: remov ing the cove r
Fig. 78 Selector leve r: emerge ncy release
To maneuver or tow the vehicle, the emergency
release must be used to move the selector lever
from the P position.
Using the emergency release can be complicated .
We r ecommend contacting an authorized Audi
dealer or authorized Audi Service Facility for as­
sistance, if necessary .
A maintenance tool from the vehicle tool kit
must be used to release ¢
page 197.
Preparations
.,. To prevent your vehicle from rolling uninten­
tionally , set the parking brake(®) or press the
brake pedal ¢
LD,. .
.,. Insert the flat side of the maintenance tool
sideways in the slot near the shift cover and pry
off the shift cover¢
fig. 77 .
.. Pull the frame and the cover upward. You can
fold the cover up over the shifter knob . ..,_

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Selector lever emergency release
"' Press and hold the yellow re le a se button
~ fig. 78.
"' Press the b utton on the selector lever and move
t h e leve r into N position .
"' Clip the frame to the cover again.
A WARNING
Only move the se lector lever out of the P posi­
tion when the parking b rake is set. If that
does not work , secure the vehicle wi th the
brake pedal. The vehicle can roll away if it is
no t secured and ca use a crash.
Driving
73

Trailer towing
Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passenger
transportation.
If you plan to tow a trailer, please remember that
the additional load will affect durability, econo­my and performance.
Trailer towing not on ly places more stress on the
ve hicle, it also ca lls for more concentration from
the dr iver.
F or this reason, always follow the operating and
driving instructions provided and use common
sense.
Technical requirements
Trailer hitch
Use a weight-carrying hitch conforming to the
gross tra iler weight. The hitch must be suitab le
for your veh icle and tra iler and must be mounted
securely on the vehicle's chassis at a technically
sound
locat ion . Use on ly a trailer hitch with a re­
movable ba ll mount . Always che ck with the t rail ­
er hitch man ufac tur er to make s ure t hat you are
using the co rrect hi tc h.
Do not use a bumper hitch.
The hitch must be installed in such a way that it
does not interfere with the impact -absorbing
bumper system. No mod ificat ions should be
made to the vehicle exhaust and b rake systems .
Fr om t ime to t ime, che ck that all hitch mo unti ng
bol ts rem ain securely f aste ned.
W hen you are not tow ing a tra iler, remove the
tra ile r hitc h ba ll mount . This prevents the hit ch
from caus ing damage s hou ld your veh icle be
s truck from be hind ¢
,&..
Trailer brakes
If you r trailer is equipped with a brak ing system,
check to be su re that it conforms to all regula­
tions .
74
The t rai ler hydraulic bra ke system must not be
directly connected to the vehicle's hydraulic
bra ke system ¢&. .
Safety chains
Always use s afety chains be tween you r vehi cle
and t he tra ile r.
Trailer lights
Traile r lights must meet all regula tions . B e s ure
to check w ith your author ized Audi dealer for cor­
r ec t wir ing, swi tches, an d relays.
Mirrors
If you are unable to see t he traffic behind you us­
i ng t he regular outs ide mirrors, then yo u
must in­
stall ex tended mirro rs . It is impo rtant that you
al ways have clear vision to the rear.
.&_ WARNING
- If a tra ile r has e lectr ical brake s ple ase no te
t h at these b ra kes are not activated by the
factory -fit ted contro l unit -risk of accident!
- After removing the traile r h itch, d o no t
s t o re it in your vehicle. In case of sud den
braking, the hitch co uld fly forwar d and in ­
jure you or yo ur passenge rs.
- Never install a "we igh t distribu tin g" or
"loa d eq ualizing" trailer hitch on your veh i­
cle . The vehicle was not designed fo r these
kinds o f trailer hitches. The hitch attach­
ment can fail, ca us ing the tra ile r to tear
loose from the vehicle .
- The Gross Vehicle Weight Rating for your
veh icle, found on the safety compliance la­
be l on the driver's s ide B-pillar, must never
be exceeded under any circ umstances . Ex­
ceed ing the Gross Vehicle We ight Rat ing of
your veh icle is likely to damage yo ur vehicle,
a nd such d amage will no t be covered by
your Limi ted New Vehicle W arra nty . Exceed­
ing the Gross Ve hicl e We ight Rating will al ­
so change the pe rformance and han dling
characte ristics o f yo ur vehicle, which could
cause a crash result ing in se rious injury or
death.

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Operating instructions
6" r-2
~·~
1/2"
1·1/2"
ill
Fig. 79 Perm itted ball pos itio n of th e t rail er hitch
Trailer towing weights
With a
factory-installed or an aftermarket trailer
hitch, the maximum permissible trailer weight is
2,200 lbs (1,000 kg) . The maximum permissible
unbraked trailer weight is 1,650 lbs (750 kg) .
These specifications apply when driving on roads having an incline of less than 12%.
Permissible tongue load
For best vehicle handling under these changed
conditions, adjust the trailer load so that the
tongue load is at the maximum allowable or
slightly lower. You can get an approximation of
the tongue load with a bathroom scale or you can
measure the load at a trucking company or
weighing station.
With a
factory-installed or an aftermarket trailer
hitch, the maximum permissible load on the ball
hitch may not exceed 220 lbs (100 kg) .
It is rec­
ommended to use the maximum permissible
load.
Trailer load distribution Be sure the load in the trailer is held securely in
place to prevent it from shifting forward, back­
ward or sideways.
Never allow a passenger to ride in a trailer ¢.&.
in Driving instructions on page 76 .
Ball mount
The trailer hitch may only be used with suitable ball mount and ball¢
fig. 79. Installation of the
hitch ball must be carried out in accordance with
the manufacturer's instructions .
Trailer towing
Engine cooling system
Towing a trailer makes the engine work harder. It
is important that the cooling system's perform­
ance is up to the additional load. Make sure that
the cooling system has enough fluid.
Tire pressure
When towing a trailer, inflate the tires of your
vehicle to the tire pressure listed under "Full
load" on the tire pressure label
¢page 181. In­
flate trailer tires to trailer and tire manufactur­
ers' specifications.
Lights
The headlight settings should be checked with
the trailer attached before driving off. Check to
make sure both vehicle and trailer lights are
working properly.
Safety chains
Be sure trailer safety chains are properly connect­
ed from the trailer to the hitch on the vehicle .
Leave enough slack in the chains to permit turn­
ing corners. When you install safety chains, make
sure they will not drag on the road when you are
driving.
The chains should cross under the trailer tongue
to prevent it from dropping in case of separation
from the hitch.
· Driving instructions
Driving with a trailer always requires extra care
ond consideration.
Weight distribution
Towing a loaded trailer with an empty car results
in a highly unstable distribution of weight. If this
cannot be avoided, drive at very low speeds only
to avoid the risk of losing steering control.
A "balanced " rig is easier to operate and control.
This means that the tow vehicle should be loaded
to the extent possible and permissible, while
keeping the trailer as light as possible under the
circumstances. Whenever possible, transfer
some cargo to the luggage compartment of the
tow vehicle while observing tongue load require-
ments and vehicle loading considerations. .,.
75

Trailer towing
Sp eed
The higher the speed, the more d ifficult it be­
comes for the driver to contro l the rig. Do not
dr ive at the maximum permissible speed. Reduce
your speed even more if load, w eather or wind
conditions are unfavorable -particularly when
going downhill.
Red uce vehicle speed
immediatel y if the trai le r
shows the s lightest sign of swaying .
Do not try
to stop the swayin g by ac cele rating.
Observe speed limits . In some areas, speeds for
vehicles towing trailers are lower than for reg ular
ve hicles.
A lways apply b rakes early . When dr iving down­
hi ll, shi ft into a lower gear to use the engine
braking effect to slow the vehicle. Use of the
brakes a lone can cause them to overheat and fail.
Coolant temperature
The coolant temperatu re gauge ¢ page 8 must
be observed ca refully . If the needle moves close
to the upper end of the scale, reduce speed im ­
mediately and/or turn off the air conditioner .
I f t he coolan t temperature warn ing light i n the
instr ument cluster s tarts flashing ., pull off
the road, stop and let the engine
idle for about
two minutes to prevent heat bu ild-up .
A WARNING
Anyone not properly restrained in a moving
vehicle is at a much greater risk in an acci­
dent . Never let anyone ride in your car who is
not properly wearing the restraints provided
by Audi .
Trailer towing
information
Important to know
Your veh icle hand les different ly when tow ing a
tra iler because of the additional weight and dif ­
fe rent weight d istr ibut ion . Safety, performance
and economy w ill great ly depend on how careful­
ly you load you r trailer and operate your rig .
76
Before you actually tow your trailer, practice
turning, stopping and backing up in an area away
from traffic . Keep pract icing unt il yo u h ave be ­
come comp lete ly familiar w ith the way your vehi­
cle-tra iler combination behaves and responds.
Backing up is difficult and requires practice .
Backing up w ith a trailer generally req uires steer ­
i ng action opposite to that when backing up your
vehicle without a trailer.
Maintain a greater distance between your vehicle
and the one in front of you . You will need more
room to stop. To compensate for the trailer, you
will need a larger than normal turning radius.
When passing, remember that you cannot accel­ erate as fast as you normally wou ld because of
the added load. Make sure you have enough room
to pass. After passing, allow p lenty of room for
your trailer before changing lanes again.
Avo id jerky starts, sharp turns or rapid lane
changes.
(D Tips
- Do not tow a trailer during the break-in peri­
od of your veh icle.
- If you tow a trai ler, your Audi may requi re
more frequent maintenance due to the ex­
tra load
¢ page 218.
' Parking on a slope
Do not park on a slope with a trailer. If it cannot
be avoided, do so only after doing the following:
When parking:
.,. App ly the foot bra ke .
.,. Have someone place cho cks under bot h the ve­
hicle and the trailer wheels .
.,. With choc ks in place, slowly release the brakes
until the wheel chocks absorb the load.
.,. Turn the wheels towards the curb .
.,. App ly the parking brake .
.,. Move the selector lever to P .
When restarting after parking :
.,. App ly the foot brake .
.,. Start the eng ine .
.,. Move the se lector lever to D/S.

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~ Release the parking brake and slow ly pull out
and away from the whee l chocks.
~ Stop and have someone retrieve t he whee l
chocks .
(D Tips
If you move the selector lever of the a utomat­
ic transm ission to P before applying the park­
ing brake and before block ing the wheels, you
may have to use more force later to move the
lever out of the P position .
Trailer towing
77

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@ Tips
The cruise control system cannot maintain
the speed cons istently if you are driving on
steep hills. The vehicle weight ca uses the
speed to increase. Due to th is, shift into a
lower gear in t ime or apply the brakes .
Changing speed
Applies to: vehicles with cruise control system
~ To inc rease or decrease the speed in incre­
me nts, push the lever towa rd
0 10 ~ page 78,
fig. 80.
~ T o inc rease o r decrease the speed quickly , hold
the leve r in the
0 10 direction until the de­
si red speed is displayed .
Overriding the cruise control system
Applies to: veh icles with cru ise control system
You can a lso press the accelerator pedal down to
increase your speed, for example if you want to
pass someone. The speed you set earlier w ill re­
sume as soon as you release the accelerator ped ­
al.
However, if you are exceeding the stored speed
by a cons iderable amount for a long time, the
cru ise control system will temporar ily switch off .
The
M;ll)~i~ (USA models) 1 B (Canada models) in­
d icator light in the instrument cluster turns off
and the sto red speed is maintai ned.
Preselecting the speed
Applies to: vehicles with cruise control system
You can pre-select your desired speed when the
vehicle is stationary.
~ Switch the ign ition on .
~ Pull the lever into position (D c:> page 78,
fig . 80 .
~ To inc rease o r decrease the speed, push the lev-
er toward
0 10 .
~ To store the speed disp layed, release the lever .
This f unct io n ma kes it possib le, for examp le, to
save the speed yo u wan t before dr iving on the
hi ghway. Once on the h ighway, ac tiva te the
cru ise control by pu lling the lever toward
(D .
Switching off
Applies to: vehicles with cruise control system
Temporary deactivation
~ Press the brake pedal, or
Assist
~ Press the lever into position @ (not clicked into
p lace)
c:> page 78, fig. 80, o r
~ Dr ive fo r longer t han five minutes at mo re than
6 mph ( 10 km/h) above the sto red speed .
Switching off completely
~ Press the lever into position @(clicked into
place), o r
~ Switch the ignit ion off.
The speed you stored will be maintained if the
c ruise contro l has been switched off temporarily .
T o resume the stored speed, re lease the bra ke
pedal and pull the lever into pos ition
(D .
Switching the ignition off w ill erase the stored
speed .
,&. WARNING
You should only resume the s to red speed if it
i s no t too high fo r exis ting t raffic conditions.
Otherw ise you can inc rease the risk of an acci ­
dent .
79

Intelligent Technology
Intelligent Technology
Electronic Stabilization
Control (ESC)
Description
Elect ronic Stabilization Control (ESC) suppo rts
driver safety.
It red uces the risk of slipping and
improves dr iving stability. ESC detects crit ica l sit­
uations such as the veh icle oversteering and un­
dersteering or the wheels are sp inning. The vehi­
cle is stabilized by app lying the brakes or reduc ­
ing engine torque. When ESC engages, the
G1 i n­
d icator light blinks in the inst rument cluste r.
The fo llow ing systems are integrated in the ESC:
Anti -lock b raking system (ABS)
ABS prevents the whee ls from loc king when brak­
i n g . The vehicle can sti ll be steered even d uring
hard brak ing. Apply steady press ure to the brake
pedal. Do not pump the pedal. A puls ing in the
brake pedal indicates that the system is acting to
stabilize the vehicle .
Brake assi st sy stem
The brake assist system can dec rease braking dis­
tance. It increases brak ing power when the driver
presses the brake pedal quick ly in emergency sit­
uations . You must press and hold the brake pedal
until the dangerous situat io n is over .
Anti- s lip regulation (ASR )
ASR reduces eng ine power when the drive w heels
begin spinning and adapts the force to the road
conditions. This makes it easier to start, acceler­
ate and dr ive up h ills .
Electron ic differential lock (EDL)
The ED L bra kes wheels that a re spinning and
transfers the drive power to the other drive
wheel or wheels if the ve hicle is equipped with a ll
wheel drive*) . This funct ion is not ava ilable at
h igher speeds.
In extreme cases, EDL automatically switches off
to keep the brake on the braked wheel from over­ heating. The vehicle is still work ing correctly. EDL
92
will switch on again au tomatically when condi ­
tions have returned to normal.
Steering recommendation
The ESC he lps to s tabili ze the vehicle by cha ng ing
t h e s teer ing torque .
Selective wheel torque control
Selective wheel to rque cont rol is used when d riv­
i ng o n curves . The front whee l on the inside of
t h e curve or both wheels on the i nside of th e
cu rve are braked se lective ly as needed. This al­
l ows mo re pre cise driving in curves .
Automatic post -collision braking system
The "automat ic post -coll is io n braking system"
can help to reduce the risk of sl iding and of addi­
tiona l co llisions after an acc ident. If the a irbag
c ontro l modu le detects a collision above a cert ain
vehicle speed, the veh icle is braked by the ESC.
The veh icle does n ot brake automatically if:
- the drive r presses the accelerator pedal, or
- the bra king force generate d by the pressed
brake pedal is greater than the b raking force
that would be in itiated by the system, or
- the ESC, the bra ke system or the vehicle elect ri­
cal system are not functioning.
A WARNING
- The ESC and its integ rated systems can not
overcome the lim its imposed by natura l
p hys ica l laws. This is es pec ially impo rtan t
on sl ippery or wet roads. If the systems be­
gi n a cting to stabili ze yo ur vehicle, you
s hould immedi ately alte r your speed to
match the road and tra ffic conditions . Do
not let t he in creased safety provi ded tempt
you into taking risks . This could increase
your r is k of a coll is ion.
- Please note the r is k of a coll is ion increases
when dr iv ing fast, especially th rough c urves
and on slippery or wet roa ds, and when dr iv­
ing too close to objects ahead. The ESC and
its integrated systems cannot always pre­
ve nt co llisions - there is st ill a risk of acci­
dents!

Intelligent Technology
_&. WARNING
You should only switch offroad mode on or
switch ESC/ ASR off if your driving abilities
and the traff ic conditions perm it. There is a
r isk of slid ing.
- The stabilization function is limited when
offroad mode is switched on. The driving
wheels co uld spin and the vehicle could
swerve , especially on slick or slippery road
surfaces.
- T here is no vehicle stab ilizat ion when ESC/
ASR are switched off .
Hill descent assist
Applies to: vehicles with hill hold assist
Hill descent assist makes it possible to drive
down a hill at a constant speed.
Fig . 100 Center console: hill descent assist button
.,. To switch the hill descent assist on, press the
~ button in the center console c:> fig. 100. 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 wheels auto­
matically in order to limit speed when driving ei­
ther forward or reverse on hills with a grade up to
approx imately 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 occurs br iefly after start ing to drive
up to approximately 19 mph (30 km/h). The driv­
er can increase or decrease the vehicle speed
94
within these limits by pressing the accelerator or
brake peda l.
However, there must be enough tract ion. Hill de­
scent assist
cannot function as expec ted, if fo r
example the hill is icy or if the surface is loose
c:>,& .
Active assistance at a specific speed up to about
19 mph (30 km/h) is shown in the instrument
cluster through a blinking indicator light •. The
indicator light shines 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
i n the button turning on. The system automat i­
ca lly 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 lower than 19 mph (30 km/
h),
- the incline angle is at least around 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, because this increases the risk
of an accident .
-
-The hill descent ass ist 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 ab le to hold
your vehicle at a constant speed under all
conditions while dr iv ing on a hill (for exam­
ple if ground u nder 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 ..,.

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compensate for the slightly reduced bra king
force by pressing firmly on the brake peda l. Avoid
heavy braking during the break -in period .
Operating condit ion s and dr iving habits
The brakes on today's automobiles a re sti ll s ub­
ject to wear, depend ing largely on ope rating con­
ditions and driving habits¢& . On vehicles that
are either driven most ly in stop-and -go city traf ­
fic or are driven hard, the brake pads should be
checked by your authorized Aud i dealer more of­
ten than specified in the
Warran ty & Mainte ­
n anc e boo kle t .
Failure to have your brake pads
inspected can resu lt in reduced brake perform­
ance.
On steep slopes, you should use the braking ef­
fect of the eng ine. This way, you prevent unnec­
essary wear on the brake system . If you must use
your brakes, do not hold the b rakes down cont in­
uously. P ump t he b rakes at intervals.
Operating no ise
Noises may occur when braking depend ing on the
speed, braking force and outs ide cond itions such
as tempe rature and humidity .
Effect of water or road salt
In certain situations, for example after driving
through water, in heavy ra in, after overnight con­
densat ion or after washing your car, the braking
effect can be reduced by mo isture or ice on the
brake rotors and brake pads . The brakes must be
"dr ied" fi rst w it h a few careful brake applica­
tions .
At highe r speeds and with the windsh ield w ipers
turned on, the brake pads press aga inst the brake
rotors for a short amount of time. This action,
which is not felt by the d river, happens a t regular
i nte rvals and ens ures a better reaction time fo r
the brakes in wet weather.
The bra king effect can also be redu ced if you are
d riving on salted roads and you do not apply t he
b ra kes fo r long pe riods of time. The layer of sa lt
on the brake rotors and brake pads m ust be worn
off first when the b rakes are applied¢& .
Intellig ent Technology
Corrosion
Leaving t he vehicle pa rked fo r lo ng periods of
t ime, low mileage and avoiding heavy braking
can contrib ute to corrosion on the brake rotors
and to dirty brake pads .
If you usua lly avoid heavy bra king or if there is
corrosion present, occasiona l heavy braking at
high speeds is recommended to clean the brake
rotors and pads¢& .
Brake system malfunction
if you no tice that the b rake peda l t ravel has sud ­
denly
gotten larger, then a b rake c ircuit may have
f ailed ¢ & .
Low brake fluid level
When the brake fluid level is low, malfu nctions in
the b rake system may occur. The b rake fl uid level
is e lec tron ically moni tored.
Brake booster
The brake booster amplifies the pressure you ap­
ply to the brake pedal.
It only works when the en­
gine is running~ &.
Brake lining wear statu s
Brake lining wear may be checked by visual in­
spect ion of the condition of the brake pads
t h rough the openings in the wheel. If necessary,
the wheel may be removed for this i nspection
¢ page 198, Replacing wheels .
,&. WARNING
-New brake pads don't have the bes t stop­
ping power and m ust be "broken-in" during
the initial 250 mi (400 km) . You
can com ­
pensate for this by pressing the brake pedal
more firmly . This a lso applies later when
new pads are installed.
- You shou ld perform braking maneuvers for
the purpose of cleaning the brake system
only if road condit ions permit. Other road
users must not be put at r isk - you may
cause an accident!
- Before descending a steep grade, reduce
speed a nd sh ift transmission into a lower
95