brake light AUDI Q5 2018 Owner's Manual

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Description
The predictive cont rol 1 l uses the map info rma ­
tion from the navigation system in order to react proactive ly when driving. Information from the
cam era-based traffic sign recognition * is a lso ap ­
plied to recognize traffic
signs ¢ page 97. When
coming up to areas wi th speed limits or changes
in the course of the road (such as curves, inter­
sections or traffic c ircles), the system brakes au ­
tomatically and then accelerates back up to the
set speed .
Overriding control
The driver can override the predict ive control at
a ny time by press ing the accelerator or brake
pedal. If the system changes the vehicle speed to
adapt to speed limits, you ca n cha nge the speed
usi ng the lever
¢ page 106, fig. 105 .
Always switch off the predictive control in
the following situations:
- When increased atte ntion is needed from the
drive r.
- In poor weat her cond it ions such as snow or
heavy ra in.
- When driving on roads in poor condition .
Indicator in the instrument cluster display
When switching on the adaptive cru ise cont rol
for the first time, the message
ACC: R + B ac­
ti ve
in the instrument cluste r indicates the ava il­
ab ility of the predictive control.
T he
'?·;SOmh symbo l appears when the system
is reg ulating the speed to match a speed lim it. If
this is the case, the system is regulating a speed
of SO mph (80 km/h) . The speed is then taken
over by the adaptive cru ise control. The speed in
the speedomete r LE D ring ad justs to the speed to
be maintained
¢ page 104, fig. 104 . The ..
¢fig. 98 sym bo l appe ars whe n there is an adap ­
ta tion to t he ro ute ahea d.
I f you are in the
Driver assistance d isp lay in the
in str ument cluster, then the fo llow ing symbols
w ill in dica te w hic h oc currence t he sys tem is cu r­
r en tly responding to:
ll Thi s is not availa ble in so m e co untri es.
A ss istance systems
Symbol Meaning
MPH
USA models:
Speed limit
km/h
Canada model s:
Speed limi t
ll
Curve
_J!L Intersection
,:r
w
T raffic ci rcle
A WARNING
-
- Read the wa rnin gs on ¢ .&. in General infor­
mation on page 103
and on¢ & in De­
scription on page
97.
- Pay attent ion to traffic and the a rea around
your veh icle when pred ictive cont rol is
sw itched on. The driver is always responsi­
ble for assessing the traffic situation.
- There is an increase in the risk of an acci­
dent, because the system does not consider
"right of way" rules and also does not re ­
spond to traffic lights .
- The system only cons iders t raff ic signs that
g ive a speed lim it .
- The permitted speed can be exceeded if the
adaptation to a speed lim it is incorrect . The
d river is responsible for adher ing to the pe r­
mitte d speed .
- The s peed at w hich a curve is dr iven th rough
does not necessarily match your own driving
s tyle. Brake the vehicle yo urself whe n need­
e d t o redu ce the risk of an a ccid en t.
0) Tips
- If a speed lim it is detected, the stored
speed is also adjusted in the speedometer
LE D line when the ada ptive cru ise control is
n ot a ctive .
- The adaptat ion by the system depends on
t he driving mode se t in dr ive se lec t*.
- Switching off predict ive con trol, fo r exam­
ple whe n driving in low t raff ic zones, does
101

You can set any speed between 20 mph and 95 mph (30 km/h and 150 km/h).
I ndicato r lights and messages in t he i nstr ument
cluste r display inform you abou t the cur ren t sit ­
uation and setting.
An addit ional ind icator appears in the head- up
d isp lay* .
Switching adaptive cruise control on
"' Pull the lever toward you into position @
<=>fig . 103 .
Storing the speed and acti vating regul ation
"' To store the c urrent speed, press the !SE TI but­
ton
<=> fig. 103. The stored speed is shown in the
speedometer in the LED
line @ and appears
briefly i n the status line @<=>
fig. 104 .
"'To activate the regu lation wh ile stat ionary, also
press the b rake peda l.
Switching adaptive cruise control off
"' Push the lever away from you into position @
unt il i t clicks i nto place . The message
ACC: off
appears .
® Indicator light s
II-Adaptive cruise control is switched on. No
ve hicles are detected ahead. The stored speed is
maintained.
•-A vehicle driving ahead was detected . The
adaptiv e cruis e control system regulates the
speed and distance to the vehicle dr iv ing ahead
and accelerates/brakes automatically.
•-Adaptive cruise control is switched on. Ave ­
h icle was detect ed ahead. You r vehicle is station ­
ary and will not start driving automatically.
ti)-Adaptive cru ise con trol is switched on. No
ve hicles were detected ahead. Yo ur vehicle is sta ­
tionary and will not start driving automatically .
•-The autom atic br aking is no t en ough to
main tain a sufficient distance to a veh icle dr iving
ahead. You must intervene
c:!;> page 108, Driver
u intervention request . co ..... N ,..._
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Ass istance systems
© Instrument cluster display
If the Driver a ssistance displ ay is not shown in
the instr ument cluster d isp lay, you can open it
u sing the m ultif unction steering whee l buttons
c:!;> page 12.
Ba sed on the gr aphic disp lay, you c an dete rm ine
i f th e system is maintain ing a d istance to the ve ­
hicle driving a head and what t hat distance is .
No vehicle -no vehicle was detec ted dr iv ing
ahe ad.
Silver vehicle -a vehicle was detected driving
ahead.
Red v ehicle -reques t for driver interve ntion
<=> page 108 .
The five distan ce bars on the gauge © represent
the set distance (refer to
c:!;> page 107for infor­
ma tion o n how to change t he d istance). If you
fall below the selected d ista nce, the distance
bars become red from the bottom upwa rd .
A WARNING
If yo u press the !SET I butto n w hen dr iv ing at
speed s below 20 mph (30 km/h), t he ve hicle
a ccelera tes au tom atic ally u p to 2 0 mph (30
k m/h), w hich is the minim um speed tha t can
b e set.
(D Tips
- If you swi tch t he ig nit io n o r th e adaptive
cr uise cont ro l sys tem o ff, t he set s peed is
erased fo r safe ty reasons .
- Th e Elect ronic S tab ili za tion Control ( ES C)
and the An ti- Slip -Reg ula tion (ASR) are a uto­
matically swi tched o n when the adap tive
c ruise cont ro l is switched on .
105

Assistance systems
Changing the speed
Applies to: vehicles with Audi adaptive cruise contro l
0
f
' 0
Fig. 105 Operat ing lever : c h ang ing the speed
~ To increase/decrease the speed in 1 mph (1
km/h) increments, br iefly
tap the lever toward
010 ¢ fig . 1 OS to the first level.
~ To increase/decrease the speed in 5 mph (5
km/h or 10 km/h) increments, briefly
tap the
lever toward
0 10 up to the second level.
~ To increase or decrease the speed continuously,
hold the lever toward 0 / 0 to the first o r sec­
ond level until the red
LED @ reaches the de­
s ir ed speed
¢ page 104 , fig. 104 .
You can also preselect the speed when adaptive
cruise control is not active by moving the lever in
the desired direction
010 . Activate the previ­
ously se lected speed by pulling the lever into po­
sition
(D ¢ page 104, fig. 103.
After each change, the new stored speed appears
briefly in the status
line ¢ page 104, fig. 104 @.
When adaptive cruise control is active, the B in­
dicator light turns on and when adaptive cruise
control is not active, the
ll'J indicator light turns
on . In the Audi virtual cockpit*, the
II indicator
light turns on instead.
ll Thi s is not ava ilab le in som e coun tri es .
106
Driving in stop-and-go traffic
Applies to: vehicles with Audi adaptive cruise control
Fig. 106 In strume nt cl uster: safe s tart mo nitor
The adaptive cruise con trol system also assists
you in stop-and-go traffic.
If a vehicle driving
ahead stops, your vehicle will brake and stay at a
stop within the limits of the system.
Starting to drive with adaptive cruise
controt1>
As long as the message ACC: automatic go is dis­
played, your vehicle will begin driving when the
vehicle driving ahead starts to move
c::> A_.
If you are stopped for several seconds, your veh i­
cle will no lon ger drive autonomously for safety
reasons, and the message will turn off.
~ To reactivate ACC: automatic go temporarily,
pull the lever to
position @¢ page 107,
fig. 107.
~ To resume manua l control of the vehicle, tap
the accelerator pedal.
Safe start monitor
If an obstacle is detected when you start driv in g,
you w ill be alerted to the danger by
the. indi­
cator light and the image in the instrument clus­
ter display
c::> fig. 106 c::> &. . An audio signa l w ill
also sound. Your vehicle will drive more slowly
when starting. This may also happen in some sit­
uations when there is no apparent obstacle .
-Press the brake pedal to slow your vehicle
down .

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The road exceeds the maximum possible grade
for safe operation. The systems cannot be switch­
ed on.
Ill AC C with traffic jam a ssis t: only availabl e in
D, Sor M
Select the "D/S " or " M" selector leve r pos it ion.
Ill A CC w ith tr affic j am ass is t: currentl y un­
available . Parking brake applied
The systems sw itch off if you set the parking
brake . The systems are available again after you
release the parking brake .
llJ ACC with traffic jam a ssist: currentl y un·
av ailable. Stabili zation cont rol (E SC) input
This message appears if the Ele ctronic Stabili za ­
tion Control (ESC) is taking action to stabilize the
ve hicle . The systems switch off in this scenario .
Ill ACC with traffic jam a ssis t: manu al control!
This message appea rs if the veh icle rolls back
when sta rting on a slight incl ine, even t hough the
systems are active . P ress t he b rake peda l to pre ­
vent the vehicle from rolling or sta rting to move.
IIJ ACC w ith tr affic jam a ssis t: curr entl y un­
availabl e. Downhill a ssis t activated
You cannot activate the system when hill hold as­
sist is act ive .
II!! ACC with traffic jam assist: manual control!
This message appears if the driver does not take
over steering after mu ltip le driver intervention
requests and the system switches off . The vehicle
brakes unt il it is stationary .
ii Traffic jam a ssis t : una vailable. S ee o wner' s
manual
The system can no longer ensure that t he ve hicle
w ill stay in the lane and sw itches off. Have yo ur
vehicle checked by an a uth orized Audi dea ler or
authorized Audi Service Facility if the ma lfunc ­
tion is continuous .
14§ Traffic jam assis t : Plea se take over steering!
This message appea rs as soon as the system
stops detecting steer ing activ ity when the system
limits are rea ched. Always keep yo ur hands on
Ass istance systems
the steering whee l so you can be ready to steer at
any time.
14§ Traffic jam a ssis t : currentl y unavailable .
Pl ea se f asten se at belt
T he system switches off when the drive r's safety
belt is unfastened.
Ill AC C: eff iciency assist not available in thi s
countr y
The adaptation to speed lim its and routes ahead
is not available in this country .
IIJ ACC: predictive control currentl y una vaila­
ble . See owne r's m anual
T he ad aptation to speed lim its and routes ahead
swi tches off at speed limits under 20 mph
(30 km/h) .
T he message ca n also appear if the adaptation to
speed limi ts and routes a head has a temporary
f ailure . Have your vehicle checked by an autho r­
ized Audi dea ler or authorized Audi Service Facili ­
ty if the malfunction is continuous .
Distance warning : malfunction! Please contact
S erv ice
T he system cannot gua rantee that it will detect
vehicles correct ly and it has switc hed off. The ra ­
dar sensors have shifted or are fa ulty . Drive to an
authorized Aud i dea ler o r authorized Audi Serv ice
Facility immediate ly to have the ma lfunction cor ­
rected .
Distance warning : currentl y unavailable . Sen sor
view re stricted due to surrounding s. See own­
e r' s manual
T his message appears if the rada r senso r view is
obstructed, for examp le by leaves, snow, heavy
spray or dirt. Clean the sensors
¢ page 103,
fig . 100.
Distance warning : curr entl y unavailable . See
owner' s manual
This message appears if the system has a tempo­
r a ry fa il ur e. If this occurs m ultip le t imes, drive to
an a uth orized Aud i dea le r o r auth o rized Aud i
Se rvice Facility immed iate ly to have the ma lfunc -
t ion corrected .
liJ,,
111

u co .... N ,..._
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this. H ave an authorized A udi deale r or a u­
thorized A udi Service Faci lity check their func­
tion.
(D Tips
-The pre sense rear functions switc h off
when towing a trai ler .
-The pre sense rear functions may also
switch off if there is a malfunction in the
side assist* system.
Audi pre sense city
A ppl ies to: ve hicles w ith Audi p re se nse c ity
D esc ription
Wit hin the limits of the system, pre sense city
can warn you of impending coll is ions w ith
ve hicles and pedestrians and initiate the applica­
b le brak ing maneuver if needed. Pre sense city is
active at speeds of approximate ly 6 mph (10 km/
h) and h igher .
A pedestrian warning can occu r at speeds up to
SO mph (85 km/h), and vehicle warn ings ca n oc­
cur at speeds up to 155 mph (250 km/h) . A pre
sense city braking maneuver is poss ible at speeds
up to SO mph (85 km/h).
Warnings
The system recogni zes var ious dangerous situa­
tions . The
early warning occurs if:
-a vehicle driving ahead brakes s uddenly
-yo ur own vehicle approaches a significantly
s lower vehicle or stationary vehicle in the direc ­
t ion of travel
-a pedestrian is standing in the lane or is moving
into the lane
When t his wa rn in g oc curs, it may on ly be poss i­
b le to avoid a co llision by swerv ing or braking
strong ly . T he message
Audi pre sense.
~ page 113, fig . 113 and a warning tone will
warn you about the danger .
Addit iona lly, a jerk on the brakes may occur as an
acute warning when there is an impending colli ­
sion. If you do not react to the acut e warning, pre
sense city can brake to the point of comp lete de­
celerat ion w it hi n the lim its of the system. This
A ss istance systems
red uces the vehicle speed in the event o f a co lli­
sio n. The message
Audi pre sense. also ap ­
pears .
T he following fu nctions a re trigge red in con junc ­
t ion w it h pre sense bas ic/rear :
-Reversible tens ion ing of the front safety belts
-Clos ing the windows and sunroof*
Audi drive select*: the function is not act ive de­
pending on the mode selected.
A WARNING
-
-Pre sense city ca nnot overcome the laws of
p hys ics .
It is a sys tem designed to ass ist and
it cannot preven t a coll is io n in every circ um­
s tance . The dr iver m ust a lw ays in terve ne.
T he d rive r is always responsible fo r brakin g
a t t he co rre ct time . Do not let the in cr eased
safety prov ided tempt you into taking r isks.
This could inc rease your r is k of a col lision .
-The system can dep loy incorrectly due to
system -specific limits.
-T o redu ce the r is k of an accident, please
note that the camera does not a lways detect
eve ry o bject.
-Pre sense city does not reac t to an ima ls,
crossing or oncoming ve hicles, objects such
as bars, ra ilings or railcars, and ob jects that
are difficult to detect
c> A in General infor­
mation on page 103.
-In trailer mode, the bra king behavior o f the
tra ile r can be d ifferent than usual du ring au­
tomatic braking.
A WARNING
--
Pre sense city may be restr icted or not ava ila­
b le in the fo llow ing example s ituations:
-in heavy fog, ra in, spray, or snow
- when there are v isua l obst ruct ions, such as
g lare, reflections or variations in light
-when it is dar k
-if the camera window or the windshield is
d irty, iced over, damaged or cove red
-when dr iv ing o n snow, ice o r loose groun d
-in c urve s
-if the ESC was rest ricted or sw itched off
-when towing a trailer
115

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(D Tips
-You can cancel the automatic brake activa­
tion w ith increasing braking fo rce if you ap­
ply the brakes yourse lf or accelerate cons id­
erab ly.
- In some situations, rea r cross-traffic assist
may warn you even if there is no cross traffic
i n a cr itical area , for examp le when back ing
i nto a parking space or maneuver ing .
- The rea r cross-traffic ass ist also switches off
when you switch off the ESC.
- The system is not available when towing a
trailer.
Messages
Applies to: vehicles with Audi side assist
A message appears in the inst rumen t cluste r dis­
p lay if the s ide ass ist swi tches off automatically .
@t Audi side assist: malfunction! Please contact
Service
@j Audi side assist and exit warning: malfunc­
tion! Please contact Service
The system cannot guarantee that it w ill detec t
ve hicles co rrectly a nd it has sw itched off. The
sensors have been mov ed o r are faulty. Have t he
system checked by an a uthori zed Audi dea ler or
author ized Audi Se rvice Facility soon.
@j Audi side assi st: cur rently unavailable. Sen­
sor vision restricted due to surroundings . See
owner 's manual
e, Audi side as sis t and e xit warning: currently
unavailable. Sensor vision restricted due to sur­
roundings
The rad ar senso r vis io n i s impa ire d. The area in
fron t of the senso rs must no t be covered by b ike
rac ks, st ic kers, leaves, snow or any othe r ob jects.
C lea n the area i n front of th e sensors, if necessa ­
ry¢ page 121, fig. 121.
e, Audi side as sis t: currentl y unavailable. See
owner 's manual
et Audi side a ssist and exit warning : currently
unavailable. See owner 's manual
A ss istance systems
S id e ass ist cannot be switched on at this time be­
ca use there is a ma lfunction (for example, the
batte ry c harge leve l may be too low).
et Audi side assist : unavailable in towing mode
e, Audi side assist and exit warning: currently
unavailable . Towing mode
S ide ass ist switches off automatically when the
electrica l connec to r i n t he factory-installed t rail­
er hitch is connec ted . There is no guarantee the
syste m will sw itch o ff when us ing a ret rofitted
t railer h itch . Do no t use side a ssist an d the ex it
war nin g when tow ing a tra ile r.
Ill Rear parking aid: obstacle detect ion restrict­
ed
The rear cross-traffic ass ist is not available . E i­
ther the ESC is sw itched off, or the rada r senso rs
may be cove red by a b ike rac k, st ic ke rs , leaves,
snow o r othe r objects . Swit ch the ESC on, o r
cl ea n the area in fron t of the senso rs if necess ary
¢page 12 1, fig . 12 1. If thi s message con tinues
to be displayed, dr ive imme dia tely to an author ­
ized Audi dea ler or author ized Audi Service Facili ­
ty to have the ma lf u nction repaired.
Audi drive select
Introduction
Applies to: vehicles with Audi drive select
Dr ive sele ct m akes i t possible to exper ien ce d if­
f erent types of vehi cle se ttings in one veh icle.
Yo u can select the driv in g modes
Offroad* or
Lift / Offroad *, Allroad* , Comfort , Auto and Dy­
namic
i n the Infota inme nt system, fo r example
to switch from a spo rty to a comfo rtable d riving
mode. In the
Individual mode, the settings can
be adjusted to you r persona l preferences. This
makes it possible to combine sett ings such as a
spo rty engine setting wi th light steer ing .
Description
Applies to: vehicles with Audi drive select
The following systems, among ot her th ings, a re
in fluenced by dr ive se lect:
.,.
125

Intelligent Technology
Intelligent Technology Electronic Stabilization
Control (ESC)
Description
Electronic Stabilization Control (ESC) supports
driver safety. It reduces the risk of slipping and improves driving stability. ESC detects critica l sit­
uations such as when the vehicle is oversteering
and understeering or the wheels are spinning.
The vehicle is stabilized by applying the brakes or
reducing eng ine torque. When the ESC engages,
the
D.1 ind icator light blinks in the instrument
cluste r.
The follow ing systems are integrated in the ESC:
Anti-lock braking system (ABS)
ABS prevents the wheels from locking when brak ­
ing. The vehicle can still be steered even during
hard braking. Apply steady pressure to the brake
pedal. Do not pump the pedal. A pulsing in the
brake pedal indicates that the system is acting to
stabilize the vehicle .
Brake assist system
The brake assist system can decrease braking dis­
tance. It increases braking power when the driver
presses the brake pedal quickly in emergency sit­
uations . You must press and hold the brake pedal
until the dangerous situat ion is over . In veh icles
with adapt ive c ruise control*, the brake assist
system is more sensitive if the distance detected
t o the vehicle dr iv ing ahead is too small.
Anti-Slip Regulation (ASR)
ASR reduces engine power when the drive wheels
beg in sp inning and adapts the force to the road
conditions . This makes it easie r to start, acceler­
ate and dr ive up hill s.
Electronic Differential Lock (EDL)
EDL applies the brakes to a wheel that starts
spinning and transfers the drive power to the
other driving wheels. This funct ion is not availa­
b le at higher speeds.
140
In extreme cases, EDL automatica lly switches off
to keep the brake on the braked whee l from over ­
heating. The vehicle is still working correctly. ED L
will switch on again automatically when condi­
tions have returned to normal.
Power steering
The ESC can also support vehicle stability
through steering .
Selective wheel torque control
Selective wheel torque control is used when driv­
in g on curves. Brak ing is targeted toward the
whee ls on the inside of the curve as needed. This
a llows more precise driving in curves.
Automatic post-collision braking system
The "automatic post-collis io n braking system"
can help to reduce the risk of sl iding and of addi­
tional collisions after an accident. If the airbag
contro l modu le detects a collision, the vehicle is
braked by the ESC.
The vehicle does not brake automatically if:
-the driver presses the accelerator pedal, or
-the ESC, the brake system or the veh icle electri-
cal system are not functioning.
A WARNING
-The ESC and its integrated systems cannot
overcome the lim its imposed by natura l
p hys ical laws. Th is is espec ially impo rtant
on slippery or wet roads. If the systems be­
gin acting to stabilize your vehicle, you
should immediately alter your speed to
match the road and traffic conditions. Do
not let the increased safety provided tempt
you into taking risks. This could increase
your r isk of a coll is ion.
-Please note the risk of a collision increases
when dr iv ing fast, especially through curves
and on slippery or wet roads, 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 still a risk of acci­
dents!

Intelligent Technology
A 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 cou ld spin and the vehicle could
swerve, espec ially on slick or slippery road
surfaces.
- There is no vehicle stab ilizat ion when ESC/
ASR are switched
off .
Hill descent assist
Hill descent assist makes it possible to drive
down a hill at a constant speed.
F ig . 147 Center console: hill desce nt ass ist button
.,. T o switc h hill descent assist on, press the l"l;,1
button. The LED in the button turns on.
-
N co
0
~ ID
.,. Press the button again to switch it off. The LED
in the button turns
off .
Hill descent ass ist brakes all fo ur whee ls auto ­
mat ically in o rder to limit speed when dr iving ei­
ther forward or reverse on hills with a g rade from
approximately 6 to 60%. The wheels wi ll not lock
up because the ABS remains activated .
When hill descent ass ist is on, the speed yo ur ve­
hicle was traveling when it ente red 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
ing and continues up to approximate ly 19 mph
(30 km/h) . The driver can increase or decrease
the vehicle speed with in these limits by pressing
the accelerator or brake pedal.
142
However, there must be enough traction . Hi ll de­
scent assist
cannot function as expected , if for
example the hill is icy or if the surface is loose
c> ,& .
Active regulation of a speed up to approximate ly
19 mph (30 km/h) is signaled in the instrument
cluster by an indicator light
• . The ii indicator
li ght turns on in the ready mode.
The system does not work at speeds between ap­
proximately 19 and 37 mph (30 and 60 km/h).
The system is then in ready-mode. Th is is indicat­
ed by the LED in the button turning on. The sys­
tem automat ically switched off when you dr ive
faster than 37 mph (60 km/h) . The LED w ill also
turn off in this scenar io .
Hill descent assist is automatically activated un­
der the follow ing condit ions:
- the LED in the button turns on
- the vehicle speed is lower than 19 mph (30 km/
h)
-the hill angle is at leas t approximate ly 6%
A WARNING
- Always adapt your speed to the weathe r,
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 phys ics. Your driving style
must always be adapted to the current road
and traffic cond itions .
- Hill descent ass ist may not be ab le to hold
your veh icle at a constant speed under all
conditions while dr iv ing on a hill (fo r 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 . H owever, you can com ­
pensate for the slightly reduced braking force by
pressi ng fi rml y on t he brake pedal. Avo id heavy
braking during the break-in period .
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Wear
Brake pad wear depends largely on the way the
vehicle is driven and on operating conditions.
This is especially true if you are driving frequently in the city and on curves or with a sporty driving
style.
Operating noise
Noises may occur when braking depending on the
speed, braking force and outside conditions such
as temperature and humidity.
Wet conditions or road salt
In certain situations, for example after driving
through water, in heavy rain or after washing
your car, the braking effect may be reduced due
to 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 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 layer of salt
on the brake rotors and pads must be worn off
first when the brakes are applied.
Corrosion
Leaving the vehicle parked for long periods of
time, low mileage and avoiding heavy braking
can contribute to corrosion on the brake rotors
and to dirty brake pads.
If you usually avoid heavy braking or if there is
corrosion present, occasional heavy braking at high speeds is recommended to clean the brake
rotors and
pads¢ ,&..
Brake system malfunction
If you notice that the brake pedal travel has sud­
denly increased, then a brake circuit in the dual­
circuit brake system may have malfunctioned. Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
Intelligent Technology
problem corrected. On the way there, drive with
reduced speed and keep in mind that you will
need a longer distance to stop and you will need
to press the brake pedal harder.
Low brake fluid level
When the brake fluid level is low, malfunctions in
the brake system may occur. The brake fluid level
is electronically monitored.
Brake booster
The brake booster amplifies the pressure you ap­
ply to the brake pedal.
& WARNING
= -
- Only apply the brakes for the purpose of
cleaning the brake system when road and
traffic conditions permit. You must not en­
danger other road users. This increases the
risk of an accident.
- Never let the vehicle roll while the engine is
stopped because this increases the risk of an
accident.
- Never place objects in the driver's footwell.
An object could end up in the area around
the pedals and prevent you from using
them. You would not be able to use the ped­
als if sudden driving or braking maneuvers
were needed, which increases the risk of an
accident.
- Only use floor mats that do not obstruct the
area around the pedals and that can be se­
curely fastened in the footwells.
- To reduce the risk of injury, do not place
your foot under the brake pedal.
@ Note
- Never let the brakes "rub" by pressing the
pedal lightly when braking is not actually
necessary. This causes the brakes to over­
heat and increases braking distance and
causes wear.
- Before driving downhill a long distance on a
steep hill, decrease your speed and select a
lower gear. This makes use of the engine
braking effect and relieves the brakes. If
you need to brake additionally, brake in in- tervals and not continuously.
.,,.
143

Intelligent Technology
(D Tips
-If the brake booster is not working, you
must press the brake pedal with much more
force than normal.
- If you retrofit your vehicle with a front spoil­
er, whee l covers or similar items, make sure
that the a ir flow to the front wheels is not
in terrupted. Otherw ise the brake system
can become too hot .
Electromechanical
steering, Dynamic
steering
The electromechanical steering supports the
driver's steering movements.
Power steering adapts electronically based on
the vehicle speed.
Indicator lights and messages
• Steering: malfunction! Please stop vehicle
If th is ind icator light turns on and stays on and
this message appears, the power steering may
have fa iled.
Stop the vehicle in a safe location as soon as pos ­
sible . Do
not continue driving . See an author ized
Aud i deale r or authorized Aud i Serv ice Facility fo r
assistance .
,~n Steering: malfunction! You can continue
driving
If the indicator light turns on and the message
appears, the steering wheel may be more diffi­
cult to move or more sensit ive than usual. The
steer ing wheel may also be at an angle when
driving st raight.
Drive slowly to an au thorized Audi dealer or au­
thor ized Audi Service Fac il ity to have the mal­
function corrected .
I@ Dynamic steering: correcting steering wheel
position
If the indicator light turns on and this message
appears, the dynamic steering* is reinitializing.
The steering wheel will be easy to move after
starting the engine. Re initialization might be
144
necessary if the steering wheel was moved while
the engine was switched
off. T he disp lay turns
off if the initialization was successfu l.
(D Tips
-If the . or Erfl indicator light only stays on
for a short time, you may continue driving.
- T he dynamic steering stability systems
¢page 140 are not avai lab le in the event of
a system malfunction .
- For additional information on dynamic
steering, see
¢ page 125.
All-wheel drive (quattro)
General information
In all wheel drive, the driv in g power is distribut­
ed between all four whee ls when needed. This
happens automatically depending on your driving
behavior as well as the current road conditions.
Also see
c> page 140 , Electronic Stabilization
Con trol (ESC).
The all-whee l drive system distributes the driving
power variably to the front and rear axle. It works
together with selective wheel torque control,
which activates when driving through curves
c> page 140. With the sport differential*, power
distribution to the rear wheels is variable and can
be adjusted using the drive select
c>poge 125 .
The all wheel drive concept is designed for high
engine power . Your vehicle is excep tionally pow­
erful and has excellent driving characteristics
both under normal driving conditions and on
snow and ice. Always read and follow safety pre­
cautions ¢.&. .
Winter tires
By using all wheel dr ive, your veh icle has good
forward motion w ith standard tires in winter con ­
ditions. However, using winter or all season t ires
o n oil four wheels in the winter is recommended,
because this w ill imp rove the braking effect.
Snow chains
If there are snow chain laws, snow chains must
also be used on veh icles with all wheel drive
c> page 340, Snow chains . .,.