engine AUDI RS5 CABRIOLET 2013 Service Manual

114 Homelin k®
Homelink ®
Universal remote
control
Description
Applies to vehicles: with Homelink
The HomeLink universal remote control can
be programmed with the remote control for
devices that are already present.
W ith Home Link, you can control devices such
as the garage door, security systems, house lights, etc. comfortably from the inside of you
vehicle.
Homelink makes it possible for you to replace
three d iffe rent remote controls from dev ices
in your home with one universal remote. This
feature works for most garage door and exte­
rior door motor signals. Programming the in­
div idual remote control for your remote con ­
trol takes place near the center of the radiator
grille. There is a control module attached at
this location .
A one -time programm ing of the sensor must
be performed before you are able to use sys­
tems with Home link. If the system does not
activate after performing the one-time pro­
gramm ing, check whether the system uses a
rolling code
q page 117 for vehicles without
the MMI*.
& WARNING
-
- Never use the Homelink ® transmitter
with any garage door opener that does
have not the safety stop and reverse fea­
ture as required by federa l safety stand­
ards. This includes any garage door open­
er model manufactured before April 1,
1982.
- A garage door opener which cannot de­
tect an object, signaling the door to stop
and reverse does not meet current feder­
al safety standards. Using a garage door
opener without these features increases
risk of serious injury or death. -
For safety reasons never release the
parking brake or start the engine while
anyone is standing in front of the vehicle.
- A garage door or an estate gate may
sometimes be set in motion when the
Homelink ® remote control is being pro­
grammed. If the device is repeatedly ac­
tivated, this can overstrain motor and
damage its e lectrical components - an
overheated motor is a fire hazard!
- To avo id possib le injuries or property
damage, please always make absolutely
certain that no persons or objects are lo­
cated in the range of motion of any
equipment being operated.
(D Tips
- If you would li ke more information on
Homel ink ®, where to purchase the
Homel ink ® compatib le products, or
would like to purchase the Homelink ®
Home Lighting Package, please call toll­
free: 1-800-355-3515.
- For Declaration of Compliance to United
States FCC and Industry Canada regula­
tions¢
page 267.
- For security reasons, we recommend that
you clear the programmed buttons be­
fore selling the vehicle.
Operation
Applies to vehicles: wit h Ho meli nk
Fig. 131 Headl iner: controls
Requirement : The buttons must be program-
med ¢
page 115 or¢ page 116 . II>

116 Homelink®
Programming the transmitter
(version B)
Applies to vehicles: with Homelink
Fig. 133 Distance between t he rad iator grille and the
hand transm itter
P rogramming: phase 1 on th e control unit
1. Sw itch on the ign it ion (do not start the
engine) .
2. Press and hold both of the outer Home­
Link buttons
¢ page 114, fig. 131 unti l
the LED @turns off completely (about
20
seconds). Th is procedure clears the stand­
ard codes that were set at the factory and
does not need to be repeated again to
p rogram the other buttons .
3 . Briefly press the Homelink button that
you would like to prog ram .
4. Wai t unti l the LED @ beg ins to blin k
q uickly. The Homelink module wi ll now
remain in learning mode for
5 minutes .
5. Now stand in front of your vehicle with
the original hand transmitter for the ga­
rage door opener or for the device that
you would like to allocate to the Home­
Link button .
P rogramming: pha se 2 on the radiator
gr ille
6 . Hold the orig inal hand transmitter some­
what towa rds the center of your vehicle's
r adiato r grille ¢
fig. 133 .
7. Now activate (p ress) the hand transmit­
ter.
8 . Pay attention to the tu rn signals fo r your
vehicle when activating the hand trans­
mitter . If the emergency flashers blink
three times, the programming was suc­
cessful. If the emergency flasher only blinks one time, the S minute time limit for the adaptation has expired or the pro
­
gramming was unsuccessful. Repeat the
programming from step 3 on the controls
or select another distance from the radia­
tor grille.
9 . If the garage door or other devices still
fail to be activated w it h the HomeL ink
control buttons after programming is
comple ted, it is possib le tha t these sys ­
tems mig ht be work ing with a roll ing code
instead of the normal f ixed code .
A Roll­
ing code pro gramming must be per­
formed
¢ page 117 .
Program the remaining two buttons accord ing
to the instructions mentioned above . Begin
similarly with the 3rd step if the program ­
ming connection was successful for the first
button.
Remote contro l units for garage door openers
in Canada are set to stop transmitting radio
frequency signa ls after two seconds. This time
may not be suffic ient for the Homelink sys­
tem to learn the radio frequency signa l. Per­
form all other steps as described above.
E rasing the button s
.,. Switch on the ignition (do not start the en­
gine).
.,. Press and hold both of the outer buttons un­
til the LED @turns off completely (about
20 seconds) to erase all of the buttons si­
multaneously .
.. Programmed buttons cannot be erased ind i­
vidua lly. Reprogram the buttons if necessa­
ry .
Reprogramming the buttons
.. Switch on the ignition (do not start the en­
gine) .
.. To reprogram an individua l button, press
and hold the b utton until the L ED@starts
to f lash quickly (after abo ut ten seconds).
Release the button immedia tely. The Home­
Link module will now remain in learning
mode for 5 minutes.
.,. Continue with step 5.

130 Safety belts
Why safety belts?
Frontal collisions and the law of physics
Frontal crashes create very strong forces for
people riding in vehicles .
Fig. 142 Unbelted occupants in a ve hicle heading for a
wall
Fig. 143 The vehicle c ras hes into the wall
The physical principles are simple. Both the
vehicle and the passengers possess energy
which varies with vehicle speed and body
weight . Engineers call this energy ''kinetic en­
ergy ."
The higher the speed of the vehicle and the
greater the vehicle's weight, the more energy
that has to be "absorbed" in the crash .
Vehicle speed is the most significant factor . If
the speed doubles from 15 to 30 mph (25 to
50 km/h), the energy increases 4 times!
Because the passengers of this vehicle are not
using safety belts
c::> fig. 142, they will keep
moving at the same speed the vehicle was
moving just before the crash, until something
stops them -here, the wall
c::> fig . 143 .
The same principles apply to people sitting in
a vehicle that is involved in a frontal collision .
Even at city speeds of 20 to 30 mph (30 to
50 km/h), the forces acting on the body can reach
one ton (2,000 lbs. or 1,000 kg) or
more. At greater speeds, these forces are
even
higher.
People who do not use safety belts are also
not attached to their vehicle. In a frontal colli­
sion they wi ll also keep moving forward at the
speed their vehicle was travell ing just before
the crash. Of course, the laws of physics don't
just apply to frontal collisions, they determine what happens in all kinds of accidents and col ­
lisions .
What happens to occupants not wearing
safety belts?
In crashes unbelted occupants cannot stop
themselves from flying forward and being in­
jured or killed . Always wear your safety belts!
Fig. 144 A driver not wea ring a safety belt is violen tly
th rown fo rwa rd
Fig . 145 A rear passenger not wearing a safety belt
will
fl y fo rwa rd and strike the drive r
Unbelted occupants are not able to resist the
tremendous forces of impact by holding tight
or bracing themselves. Without the benefit of
safety restraint systems, the unrestrained oc­
cupant will slam violently into the steering
wheel , instrument panel, windshield, or what ­
ever else is in the way c::> fig. 144. This impact .,..

with the vehicle interior has all the energy
they had just before the crash.
Never rely on air bags a lone for protec tion.
E ven when they deploy, airbags provide only
additional protection . Ai rbags are not sup­
posed to deploy in all kinds of accidents. Al­
though your Audi is equipped with a irbags, all
veh icle occupants, including the driver , must
wear safety belts correctly in order to min i­
mize t he risk of severe injury or death in a
crash .
Remember too, that airbags wi ll deploy on ly
once and that your safety belts are always
there to offer protection in those accidents in
which airbags are not supposed to deploy or
when they have a lready deployed . U nbelted
occupants ca n also be thrown out of the vehi ­
cle whe re even mo re severe o r fa tal in ju ries
can occur .
It is also impo rtant fo r the rear passenge rs to
wear safety belts co rrec tly. Unbe lted passen­
ge rs i n the rea r seats endanger no t on ly them­
se lves bu t also the driver a nd o ther passen­
gers
¢ fig. 145 . In a frontal collision they will
be thrown forward vio lent ly, where they can
h it and injure the dr iver and/or front seat pas­
senger .
Safety belts protect
People think it 's possible to use the hands to
brace the body in a minor collision. It 's simply
not true!
F ig . 1 46 D river is correctly restra ined in a sud den bral<·
ing maneuve r
Safety belts used properly can make a big dif­
ference . Safety be lts he lp to keep passengers
in their seats, gradually reduce energy levels
Safety belts 131
applied to the body in an accident, and he lp
prevent the uncontrolled movement that can
ca use serio us injuries . In addition, safety be lts
reduce the danger of being thrown out of the
vehicle.
Safety be lts attach passengers to the car and
give t hem the benefit of being s lowed down
more gently or "softly" through the "give" in
the safety belts, crush zones and other safety
features enginee red into today's vehicles. By
"absorbing" t he kinetic energy over a longer
per iod of t ime, the safety be lts make the
fo rces on the body more "tolerable" and less
li kely to ca use inju ry.
Althoug h these examples a re based o n a fron­
ta l co llision, safety belts can a lso substantia l­
l y red uce the risk of in jur y in other kinds of
cr ashes. So, whethe r you're on a long trip o r
just going to the co rner store, a lways buckle
u p and make sure others do, too . Accident sta ­
tistics show that vehicle occupants properly
wearing safety belts have a lower risk of be ing
i njured and a much better chance of surviving
an accident. Properly using safety belts also
greatly increases the ability of the supplemen ­
ta l airbags to do the ir job in a collision . Fo r
th is reason, wearing a safety belt is legally re­
quired in mos t coun tries including much of
t he United States and Canada.
Althoug h your Aud i is equipped wi th a irbags,
you st ill have to wear the safety be lts p rov id­
ed . Front airbags, fo r example, a re activa ted
o nly in some frontal collisions. The fron t air­
bags are not act ivated in a ll fron tal coll isions,
in s ide and rear co llisions, in roll ove rs or in
cases where t here is not eno ugh deceleration
through impact to the front of the veh icle.
The same goes for the other a irbag systems in
your Audi . So, always wear your safety belt
and make su re everybody in your veh icle is
properly restrai ned!

176 Intelligent technology
Intelligent technology
Notice about data
recorded by vehicle
control modules
Your vehicle is not equipped with an Event Da­
ta Recorder (EDR), installed by some manu­
facturers fo r the express purpose of capturing
data for retrieval after an accident or crash
event . EDR's are sometimes ca lled "crash re­
corders".
Some state laws restrict the retr ieval or down­
loading of data stored by EDR's that were in­
stalled in a vehicle for the express purpose of
retrieving data after an accident or crash
event without the owner's consent.
A lthough your vehicle is not equipped with an
EDR, it is equipped with a number of electron­
ic control modules for various vehicle systems
such as, for examp le, eng ine function, em is­
sion control, as well as for the airbags and
safety belts.
These electronic contro l modules also record
vehicle-re lated data during normal vehicle op­
eration for diagnostic and repair purposes.
The recording capacity of the electronic con­
trol modules is limited to data (no sound is re­
corded) and only a small amount of data is ac­
tually recorded over a very limited pe riod of
time and stored when a system fault or other
condition is sensed by a control unit. Some of
the data then stored may relate to vehicle
speed, direction, braking as we ll as restraint
system use and performance in the event of a
crash or other condition. Stored data can only
be read and downloaded with special equip­
ment.
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 vehicle control. It works
only when the engine is running. ESC detects certain difficult driving situat
ions, including
when the vehicle is beginning to spin (yaw)
out of control and helps you to get the veh icle
back under control by se lectively braking the
wheels, and/or reducing engine power and
providing steering assistance to help hold the
vehicle on the driver's intended course. The in­
dicator light
G) 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
physics. It wi ll not always be able to help out
under all conditions you may come up against.
For example, ESC may not always be able to
help you master situations where there is a
sudden change in the coefficient of friction of
the road surface. When there is a section of
dry road that is suddenly covered with water,
slush or snow, ESC cannot perform the same
way it wou ld on the dry surface . If the vehicle
hydroplanes (rides on a cushion of water in­
stead of the road surface), ESC will not be
able to help you steer the vehicle because con­
tact with the pavement has been interrupted
and the vehicle cannot be braked or steered.
During fast cornering, particularly on winding
roads, ESC cannot always deal as effectively
with difficult driving situations 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 condit ions. ESC can­
not override the vehicle's physical limits, in­
crease the available traction, or keep a vehicle
on the road if road departure is a result of
drive r inattention. Instead, ESC improves the
poss ibility of keeping the vehicle under con­
trol and on the road during ex treme maneu­
vers by using the driver's steering inputs to
help keep the vehicle going in the intended di­
rection . 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 assist sys ­
tem, anti -slip regulation (ASR) , e lectronic dif­
ferential lock (EDL), dynamic steering* and se­ lective wheel torque control*. ESC is switched
on all the time. In certa in situations when you
need less t raction, you can sw itch off ASR by
p ress ing the button
ij] Q page 178, fig . 169
or ~ page 178, fig. 170. Be sure to sw itch
ASR on again when you no longer need less
traction.
Anti -lock braking system (ABS)
ABS prevents the wheels from locking up
when braking. The veh icle can still be steered
even du ring ha rd b raking . Apply steady pres­
sure to the brake pedal. Do not pump the ped­
al. A pulsing in the brake peda l indicates that
the system is he lping you to brake the vehicle .
Brake ass ist system
The brake assist system can decrease braking
d istance.
It increases braking power when the
driver presses the brake pedal qu ic kl y in eme r­
gency situations . You must p ress and ho ld the
brake peda l until the situation is over. In
vehicles with adaptive cruise control*, the
brake assist system is more sensit ive if the
d istance detected to the vehicle ahead is too
small.
Anti- slip regulati on (ASR )
ASR reduces engine power when the drive
wheels begin to spin and adapts the force to the road condit ions. This makes it eas ier to
start, accelerate and drive up hills.
El ectronic diffe rential lock (EDL )
The ED L brakes wheels that are spinning and
transfers the drive power to the other wheels .
This function is available up to about 60 mph
(100 km/h).
I n extreme cases, ED L automatically 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.
Int ellig ent technolog y 177
Dynamic steering *
On vehicles with dynam ic steering*, ESC he lps
stabilize the steering in crit ica l sit uations.
Select ive wheel torque control*
The select ive wheel torque control operates
when d riving through curves. The front wheel
on the inside of the curve o r both wheels on
the ins ide of the c urve a re bra ked select ively
as needed. This minimizes sliding in the front
whee ls and allows for more precise driv ing
through curves. The app licable system may
not act ivate when dr iving in wet or snowy con­
ditions.
A WARNING -
- ESC, ABS, ASR, EDL dynam ic steering*
and the select ive wheel torque control*
cannot ove rcome the laws of physics.
This is especially important on slippery
or wet roads.
If t h e systems beg in acting
to stabilize your veh icle, yo u 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 contro l, collision and ser ious per­
sonal injur ies.
- Always adapt your speed to road, traffic
a nd weather conditions. The risk of Los-
ing contro l of the vehicle i ncreases when
driving too fast, espec ially through
curves and on slippery or wet roads, and
when dr iv ing too close to vehicles up
ahead. ESC, ABS, the brake assist sys ­
tem, ASR, ED L dynamic steering * and the
selective whee l torque control * cannot
prevent coll is ions.
- Always accelerate with spec ial care on
even, smooth surfaces such as those that
are wet or covered with ice and snow.
The drive wheels can spin even with
these assistance systems that can not al­
ways he lp to red uce the risk of loss of ve­
hicle control.
•
•

178 Intelligent technolog y
@ Tips
-ABS and ASR on ly work correctly when
a ll four wheels are eq uipped w ith identi­
ca l tires . Different tire s iz es can lead to a
r educt io n in engine power .
- You may hear no ises w hen the systems
described are wo rking.
- If the indicato r light
DJ or 11:11 (U SA
models) 1i] (Canada models) appears,
there may be a malf unct io n ¢
page 19,
c> page 19.
Switching on/off
ESC turns on au toma tically when you s tart
the engine.
Fig . 16 9 Ver sio n A : low er c ente r co nso le,~ OFF bu t·
to n
Fig . 17 0 Ve rsio n B: u ppe r ce nter conso le, ~ OFF but ­
to n
Switching sport mode on
Press the I;; OF F I button ¢ fig. 169 o r
c::> fig. 170 quickly. The act ions taken by the
E SC and ASR stabilize the vehicle a re limited .
T he
IJ ES C in dicator light tu rns on and the
me ssage
Stabilization control (ESC) : Sport .
Warning! Restricted stability
appe ars in the
d river info rmation disp lay
c::> A .
The following e xamp les are unusual situa­
t io ns whe re it may ma ke sense to switch s port
mode on in order to allow the wheels to sp in:
- Ro cking the vehicle to free i t when i t is s tuck
- Dr iv ing in deep snow o r on loose g round
- Dr iving with snow chains
Sport mode can be sw itched on at a ny speed .
Switching ESC/ASR off
Press a nd ho ld the I~ OFF I but ton for three
secon ds. The
lfil•)H and fl indicator lights
turn on and the message
Stabilization con­
trol (ESC) : off. Warni ng! Restricted stability
appears in the driver information display.
AS R is also switched off when ESC is switched
off . The stabilizat ion function is not ava ilable
c> A .
Switching on
Press the !.i, O FF I button ag ain to sw itch the
ESC back on . The
I indicator lig ht tu rns off
and the message
Stabilization control (ESC ):
On appears in the display.
A WARNING ,-
- Drive whee ls can sp in and you can lose
control of t he vehicle mo re eas ily w hen
ASR and ESC are in sport mode , especial­
ly whe n the road is slippe ry .
- Sw itch to sport mode only when your
driving skills, traffic an d weather condi ­
tions per mit.
@ Tips
You cannot sw itch sport mode on whe n
adaptive c ruise co ntrol* is w ork in g.
Braking
What affects braking efficiency?
New brake pads
D uring the first 250 mi les (400 km), new
brake pad s do not possess the ir full b rak ing
effect, they have to be "broken in" first¢ &.
The break- in period can be considerably lon-
-
ger for ve hicles w ith ceram ic b rake rotors* . ll>

You can compensate for th is sligh tly re duced
brak ing power by push ing harder on the brake
pedal. Avoid heavy braking loads d uring the
break-in per iod.
Operating condit ion s and d riv ing hab it s
The brakes on today's automobi les are st ill
subject to wear, depend ing largely on operat ­
ing conditions and driving habits¢.&. . On
vehicles that are either driven mostly in stop­ and-go city traffic or are driven hard, the brake pads should be checked by your author­
i zed Audi dealer more often than specified i n
the
Warranty & Maint enan ce booklet . Failure
to have your brake pads inspected can result
in reduced b rake performance.
On steep slopes, you should use the brak ing
effect of the engine . Th is way, you prevent un­
necessary wea r on the brake system. If you
must use you r brakes, do not hold the brakes
down continuously. P ump the b rakes a t inter ­
va ls.
Operating noise
Noises may occur when braking depending on
the speed, braki ng force and outside condi­
tions such a s tempe ratu re a nd h umidity .
Due to the nature of the materials used i n ce ­
ramic brake rotors*, nois es may become more
apparent at low speeds.
Effect of w ater and ro ad s alt
In certain situat ions, for example after driving
through water, i n heavy ra in, after over night
condensation or after washing your car, the
b rak ing effect can be reduced by moistu re or
i ce on the bra ke roto rs and b rake pads . The
b ra kes must be dried fi rs t w it h a few caref ul
b ra ke app lications.
At h igher speeds and with the w indshield w ip­
e rs turned on, the brake pads p ress against
the brake rotors for a short amount of time.
This occurs a t reg ular in tervals wi tho ut the
d river noticing and provides for better brake
response time un der wet conditions.
The effectiveness of the brakes can be reduced
when the vehi cle is dr iven o n a salt -cove re d
Int ellig ent technolog y 179
road and the b ra kes are no t used. Likewise ,
you clean off acc umulated salt coating from
brake d iscs and pads with a few cautio us ap ­
plications of the brake
9 ,&. .
Due to the ir sur face character istics, ceramic
brake rotors* absorb moisture i n such condi­
tions. T his can cause a tempo rary reduction in
braking force compared to dry brakes. Yo u can
compensate for this by pressing the brake
pedal harder .
Corrosio n
There may be a tendency for dirt to b uild up
on the brake pads and corros ion to form on
the d iscs if the car is not driven regularly or
o nly for short trips w ith litt le use of the
brakes .
If the brakes are not used frequently, or if cor­
ros ion has formed on the discs, i t is adv isable
to clean off the pads a nd d iscs by braking
firmly a few times from a moderately high
speed
9 &. .
Fault s in the brake sy stem
If you shou ld notice a sudden increase in
brake pedal travel, then one of the two b rake
c ircui ts may have failed ¢&. .
Lo w brake fluid lev el
Malfunctions can occ ur in the brake system if
the brake fluid level is too low. The brake fluid
level is monitored electronica lly.
Brake booster
T he br ake booster inc reases the pressure tha t
yo u gene rate with t he brake peda l. It works
o nl y when t he engine is running .¢
&
Brake lining wear status
B ra ke lining wear may be checked by visual in­
spe ction o f the condition of the bra ke pads
th rough the open ings in the wheel. If neces ­
sary, the wheel may be removed for t his in ­
spection ¢
page 245, Changing a wheel.
•
•

180 Intelligent technology
8_ 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 city driving .
The break-in period can be considerably
longer for vehicles with ceramic brake ro­
tors*. You can compensate for this by pressing the brake pedal more firmly.
This also applies later when new pads are
installed.
- 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
gear or lower driving 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 resting your
foot on the pedal when you do not intend
to brake . This may cause the brakes to
overheat, premature wear and increased
stopping distance.
- Under certain climatic and operating
conditions such as passing through wa­
ter, driving in heavy rain or after washing
the vehicle, the effectiveness of the
brakes can be reduced. In winter, ice can
accumulate on the brake pads, linings,
discs and drums . Carefully apply brakes
for a test . Brakes will dry and ice coat­
ings will be cleaned
off after a few care­
ful brake applications.
- Driving for an extended period of time on
salt-covered roads without using your
brakes can also affect braking efficiency.
Clean
off accumulated salt coating from
brake discs and pads with a few careful
brake applications.
- If you damage the front spoiler, or if you
install a different spoiler, be sure the air
flow to the front brakes is not obstruct- ed
. Otherwise the brake system could
overheat reducing the effectiveness of
the entire brake system.
- Failure of one brake circuit will impair
the braking capability resulting in an in­
creased stopping distance. Avoid driving
the vehicle and have it towed to the near­
est authorized Audi dealer or qualified
workshop.
- Never let the vehicle roll to a stop with
the engine shut off.
- If the brake booster is not working, for
example when towing your vehicle, or
because the brake booster has somehow
been damaged, the brake pedal must be
pressed considerably harder to make up
for the lack of booster assistance.
Electro-mechanical
power assist, dynamic
steering
The electro-mechanical power assist helps
the driver when steering .
Power steering adapts electronically based on
the vehicle speed.
Indicator lights and messages
• Steering defective! Do not drive vehicle!
If this indicator light turns on and stays on
and this message appears, the power steering
may have failed.
Do
not continue driving . See your authorized
Audi dealer or other qualified repair facility
for assistance .
''!'Y Dynamic steering: System fault! You can
continue driving
If the indicator light turns on and the mes­
sage appears, the steering may be more diffi­
cult to
move or more sensitive than usual. The
steering wheel may also be at an angle when
driving straight .
Drive slowly to your authorized Audi dealer or
qualified workshop to have the malfunction
corrected. .,..

';'ij Dynamic stee ring : initi alizing
If th is driver message appears and the ind ica­
tor light is flash ing on the inst rument pane l,
dynamic steering* is be ing reinitialized. Once
you start the engine after this is finished, the
steering whee l wi ll be easy to move. Re-initi­
alization m ight be necessary if the steering
wheel was moved hard to the left and r ight
while the veh icle was not moving. The display
goes out as soon as initialization is complete .
A WARNING
Have the dynamic steering* system mal­
function repaired as soon as poss ible by an
authori zed Audi dealer or any qualified
workshop -risk of accident!
@ Tips
- If the . or 1~ ij indicator light only stays
on for a short t ime, you may continue
driving.
- The dynamic steering* stability systems
are not available in the event of a system
malfunction.
- For additional informat ion on dynamic
stee ring*, refer to
c::> page 104.
Driving with your
quattro ®
With all-wheel drive, all four wheels are driv­
en.
G ene ral inform ation
W ith all -whee l dr ive, power is distributed to
all fo ur wheels. This happens automatica lly
depending on your driving sty le and the road
conditions at the time . See also
c::> page 176.
A center diffe rent ial distr ibutes the dr iv ing
power variably to the front and rear axle.
It
works together with se lective wheel torque
control, which activates when driving through
curves
c::> page 177. W ith the sport d ifferen ­
tial*, power distribution to the rear wheels is
variable and can be adjusted with drive select
<=:> page 104 .
Intellig ent technolog y 181
The all -whee l drive concept is designed for
high engine power. Your vehicle is exception­
ally powerfu l and has excellent driving charac­
teristics both under normal driv ing cond itions
and on snow and ice. Always read and follow
safety precaut ions
c::> ,&. .
Winter t ires
When driving in the winter, yo ur vehicle with
a ll-wheel drive has an advantage, even w ith
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
a ll fou r
wheels. See also c::> page 23 7, Winter tires.
Tire chains
Where tire chains are mandatory on certain
roads, this normally also applies to veh icles
with all -wheel drive
c::> page 238, Snow
chains .
Replacing whee ls / tires
Vehicles with a ll-wheel drive must always
have tires of the same s ize. Also avoid tires
with different tread depths. For deta ils see
page
~ page 233, New tires and replacing
tires and wheels .
Off-Road driving?
Your Audi does not have enough ground clear­
ance to be used as an off-road vehicle. It is
therefore best to avoid rough tracks and un ­
even terrain as much as possible . Also refer to
~ page 184.
A WARNING
Always ad just your dr iv ing to road and t raf­
fi c condi tions. Do no t let the extra safety
afforded by all-wheel drive temp t you into
taking extra risks.
- Al tho ugh t he all-wheel drive is very ef­
fective, always remember that braking capacity is lim ited by tire traction . You
should therefore not d rive at excessive
speeds on icy or slippery road surfaces.
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