Smart Technology
wheels can spin even with these assistance
systems that cannot always help to reduce
the risk of loss of vehicle control.
@ Tips
-ABS and ASR only work correctly when all
four whee ls are equipped with identical
Switching on/off
tires . Different tire sizes can lead to a reduc
tion in engine power .
- You may hear noises when the systems de
scribed are working.
- When installing a factory-supplied roof rack
system on the roof railing, the ESC will
adapt itself to a different center of gravity.
ESC turns on automatically when you start the engine.
Fig. 185 Version A: Lower center console, YJ. OFF butto n
The fo llow ing situations are exceptions where it
may be useful to sw itch on offroad mode to allow
the wheels to spin:
- Rocking the vehicle to free it when it is stuck
- Driving in deep snow or on loose ground
Offroad mode on
Fig. 186 Ve rs ion B: Upper center co nsole, YJ. O FF button
-Driving with snow chains
- Driving downhill while braking on loose ground
- Driving on rough terrain when much of the car's
weight is lifted off the wheels (axle articula
tion)
Offroad mode off
Behavior
The ESC and ASR stabilization functions are The full stabilization function of the ESC
limited
c> & .
Operation Press the l.13 OFF I button.
Indicator Ill turns on.
lights
Driver mes· Stabilization control (ESC): Offroad .
sages Warning! Restricted stability
A WARNING
- You should only switch offroad mode on if
your driving abilit ies and road conditions
permit.
- The stabilization function is limited when offroad mode is switched on. The driving
wheels cou ld spin and the vehicle could
swerve, especially on slick or slippery road
surfaces.
192
and ASR is availab le again.
Press the
1.$ OFF I button again.
II turns off.
Stabilization control (ESC): On
(D Tips
Offroad mode cannot be switched on when
adaptive cruise control" is switched on .
M N
co ~ co
Hill descent assist
The hill descent assist makes it possible to drive
down on incline at a constant speed .
~!:t'::t Cl)Of~ ........ - -~ -fi31.. ..,_e..,,. --
I: ~_c)': ~ ~ ~ ~- .·· ~ n
l ... , .. --~ . ; - - -
Fig. 187 Top of t he ce nte r con so le: h ill descen t ass ist bu t
to n
Fig. 188 D isplay: hill descent assist
~ Press the~ button in the center console
~ 1/) 9 a:
~
¢ fig. 187 or on the shift gate. The button w ill
illuminate .
~ Press the button again to switch it off. The di-
ode in the butto n w ill go out.
H ill descent assist brakes all four wheels auto
mat ica lly in o rder to lim it speed when driv ing ei
ther fo rward or reverse on hills with a grade up to
approximately 50%.
When the h ill descent assist is on, the current
d riving speed, when your vehicle entered the in
cline is maintained.
It is only possible to switch
on the ass ist when d riving slower than 37 mph
(60 km/h). The assist works between app rox i
mately 2 and 19 mp h (4 and 30 km/h). The driver
can increase or decrease the vehicle speed within
these limits by depressing the acce lerator or
brake pedal In addition , vehicle steerability is in
creased due to the braking distribution when
:0 driving in reverse .
"' N
"' ......
Smart Technology
There must be however suffic ient ground adhe
sion . The hill descent assist can
n ot do its job if
the incline is icy or if the incline ground is loose
¢ Ll:). .
The system does not work at speeds between 19
and 37 mph (30 and 60 km/h) . The system is
then in the ready-mode. The d iode in the button
will come on . The system automatically switched
off when you drive faster than 37 mph (60 km/
h) . The diode will go out in this case .
Active control at a specif ic speed up to approx i
mately 19 mph (30 km/h) will appear in the in
strument cluster display¢
fig. 188. Two das hes
"--" will appear in the ready mode.
Hill descent assist is automatically activated un
der the fo llowing conditions:
- the diode in the button i lluminates,
- veh icle speed is below approximately 19 mph
(30 km/h)
- the incline is 10% .
A WARNING
-
-Always adapt your speed to the weather,
road and traffic conditions. Do not let the in
creased safety provided tempt you into tak ing risks.
- The hill descent assist system cannot over
come the laws of physics . Your driving style
must always be adapted to the current road
and traffic conditions.
- The hill descent assist may not be ab le to
hold your vehicle at a constant speed under
all conditions w hile driving on an incl ine (for
example if ground under the vehicle is loose) .
Braking
What affects broking efficiency?
New brake p ad s
During the first 250 miles (400 km), new brake
pads do not possess their full braking effect, they
have to be "broken in" first¢ &. .,,.
193
M N
co
a:
co
,...., \!) 1.1'1
N 1.1'1 ,....,
brake. This may cause the brakes to over
heat, premature wear and increased stop
ping distance.
- Under certain climatic and operating condi
tions such as passing through wate r, driving
in heavy rain o r after washing the vehicle,
the effectiveness of the brakes can be re duced. In w inter, ice can accumulate on the
brake pads, linings, discs and drums . Care
fully apply b rakes for a test. B rakes wi ll dry
and ice coatings wi ll be cleaned off after a
f ew caref ul bra ke applications .
- Dr iv ing for an extended period of time on
salt-covered roads w ithout using you r
brakes can also affect braking efficiency .
Clean off accumulated salt coating from
brake discs and pads w ith a few caref ul
brake applicat ions.
- If you damage the front spoiler, or if you in
stall a different spoi ler, be sure the air flow
to the front brakes is not obstructed. Other
wise the brake system could overheat reduc ing the effectiveness of the ent ire brake sys
tem .
- Failure of one brake c ircuit will impair the
braking capab ility result ing in an increased
stopp ing distance. Avoid driv ing the veh icle
and have it towed to the nearest authori zed
Audi dealer or qu alified workshop.
- Never let the vehicle roll to a stop w ith the
eng ine shut off.
- If the brake booster is not work ing, the
brake pedal must be pressed conside rably
harder to make up fo r the lack of booste r as
sist ance.
Electromechanical power
assist, Dynamic steering
The electromechanical power assist helps the
driver when steering.
Power stee ring adapts electronically based on
the vehicle speed.
Indicator light s and mess age s
• Stee ring def ective! Do not drive vehicle!
Smart T echno log y
If this indicato r light turns on and stays on and
t h is message appears, the power steering may
have failed.
Stop the vehi cle in a sa fe location as soo n as pos
s ible . Do
not cont inue driving . See yo ur author
ized Audi dea ler or other qualified repair facility
for assistance .
'Iij Dynamic steering: Sy stem fault! You c an
continue dri ving
If the indicato r light turns on and the message
appea rs, the stee ring may be more d ifficult to
move o r more sensit ive th an usua l. The steering
may also be at an angle when driving straight .
Drive slowly to you r authorized Audi dea le r o r
qualified wo rkshop to have the ma lf u nct ion co r
re cted.
,~n D ynamic steering: Initializing
Audi drive select*: if the indicator light blinks and
the driver message appears, the dynamic steer
i ng* is reinitialized. After starting the engine, the
stee ring wheel will move slightly . Re-in itia liza
t ion m ight be necessa ry if the stee ring wheel was
moved h ard to the left and r ight while the veh icle
was not moving. The disp lay t urns off if the ini ti
alization was success ful.
(D Tips
- If the . or
(~fl indica tor light only stays on
for a sho rt time, you may cont inue driving.
- T he dynamic s teering* stab ility systems
<:!> page 191 are no t available in the event of
a system mal func tion .
- For add ition al information on dynamic
steer ing*
<:!> page 120.
Driving with your quattro
With all -wheel drive, all four wheels are driven.
General information
With a ll-wheel d rive, power is distr ibuted to a ll
fo ur wheels. This happens automati ca lly depend
i ng on your d riving s tyle and the road condi tions
a t t he t ime . See a lso <:!>
page 191. .,.
195
Smart Technolog y
A center differentia l distributes the driving power
variably to the front and rear axle. It works to
gether with selective wheel torque contro l, which
activates when driving through curves
c:::;,page 191.
The all-wheel drive concept is designed for high
engine power . Your vehicle is exceptionally pow
erful and has excellent driving characteristics bo th under normal driv ing condit ions and on
snow and ice . Always read and follow safety pre
cautions
c:::;, .&. .
Wint er tires
When driving in the winter, your vehicle with all
wheel drive has an advantage, even with regular
tires. In winter road conditions it may be advisa
ble to mount winter tires (or all-season tires) for
improved dr iveability and braking: these tires
must be mounted on
a ll four wheels . See a lso
c:::;, page 250, Winter tires.
Tire chain s
Where tire chains are manda tory on certain
roads, this normally also applies to vehicles with
all-wheel drive c:::;, page 250, Snow chains.
Repl acing wheels /tire s
Vehicles with all-whee l drive must always have
tires of the same size. Also avoid tires with differ
ent tread depths . For deta ils see page
c:::;, page 242, New tires or wheels .
A WARNING
Always adjust your driving to road and traffic
conditions. Do not let the extra safety afford
ed by all-wheel drive tempt you into ta king
extra r is ks.
- Althoug h the all-whee l dr ive is very effec
t ive, always remember that brak ing capac ity
is limited by tire traction . You should there
fore not drive at excessive speeds on icy or slippery road surfaces .
- On wet road su rfaces, be careful not to drive
too fast because the front wheels could be
gin to slide on top of the water (aquaplan
ing). If this should occur, you will have no
warning from a sudden increase in engine
speed as with a front -whee l drive vehicle.
196
Always drive at speeds which are suited to
the road cond it ions -risk of crash.
Energy management
Starting ability is optimized
Energy management controls the distribution of
electrical energy and thus optimizes the availa bility of electrical energy for starting the engine .
If a vehicle with a conventional energy system is
not driven for a long period of time, the battery
i s d ischarged by idling current consumers (e .g .
i mmob ili zer). I n certain c ircumstances it can re
s ul t in the re be ing insuffi cient energy available to
start the eng ine.
Intelligent energy management in your vehicle
hand les the d ist ribution of electrical energy.
Start ing ability is ma rkedly improved and the life
of the ba ttery is extended .
Bas ica lly, energy management consists of
bat
t e ry diagn osi s, idling curr ent man ag ement
and
d ynami c energy management .
Batte ry diag nosi s
Battery diagnosis continuously determines the
state of the battery. Se nsors determine battery
vo ltage, battery current and battery tempera
tu re. This determines the cu rrent state of cha rge
and the power of the battery .
Idling current management
Idling current management reduces energy con
sumption whi le the vehicle is standing . W it h the
i gnition switched off, it cont ro ls the energy sup
ply to the various electrical components. Data
from battery d iagnosis is cons idered.
Depend ing on the battery's state of charge , indi
v idual consumers are gradua lly tu rned off to pre
vent excessive discharge of the batte ry and thus
maint ain s tarting capability.
Dynamic ener gy management
While the vehicle is being driven, dynamic ene rgy
management distr ibutes the energy gene rated
accord ing to the needs of the individual compo-
nents. It regu lates consumption, so that more
II>
Wheels
Occupant loading and distri
bution for veh icle normal load
for various designated seat ing
capacit ies
Refer to the tire inflation pressure
label
c:> page 245, fig . 207 for
the number of seating positions .
Refer to the table
c:> table on
page
247for the number of peo
ple that correspond to the vehicle
normal load .
New tires or wheels
Audi recommends having all wo rk
on tires or wheels performed by
an authorized Audi dea ler or au
thorized repair fac ility. These fa
cilities have the proper knowledge
and are equipped with the re
quired tools and replacement
parts.
.,. New tires do not yet have the
optimum adhesion properties. Drive carefully and at moderate
speeds fo r the first 350 miles
(500 km) with new tires .
.,. Use tires of t he same constr uc
tion, size (rolling c ircumference)
and as close to the same tread pattern as possible on all four
wheels.
2 4 2
.,.Do not replace tires individ ually .
At least re place both t ires on the
same axle at the same time.
.,. A udi recommends that you use
Aud i O riginal equipment tires . If
you wo uld li ke to use different
tires, please note that the tires may perform d ifferently even if
they are the same s ize
c:> &. -
.,. If you would like to equip you r
vehic le with a tire/rim combina
tion that is different from what
was installed at the facto ry, con
sult w ith an authorized Aud i
dealer or authorized repair facili
ty be fore making a purchase
¢ .&_ .
The spare tire* is d ifferent from
the regular t ires installed on the
vehicle -for example, if winter
tires or wi de tires are installed -
then only use the spare tire* tem
porar ily in case of emergency and
drive carefully while it is in use . It
s h o u ld be replaced w ith a regular
tire as soon as poss ib le.
On
all wheel drive ve hic les, all
four wheels must be equipped
w ith tires that are the same brand
and have the same construction
and tread pattern so that the
drive system is not damaged by
Wheels
A WARNING
Wheel bolts that are tightened or repaired in
correctly can become loose and resu lt in loss
of vehicle control , which increases the risk of
an acc ident. For the correct tightening specifi
cat ion, refer to
c:> page 261, After changing a
wheel.
- Always keep the wheel bolts and the threads
in the wheel hub clean and free of grease.
- Only use wheel bo lts that fit the r im .
- Always have damaged rims repaired by an
authorized Aud i dealer or authorized repair
facility. Never repair or disassemble rims
you rself, because this increases the risk of
an accident.
Winter tires
W inter tires sign ificantly improve the vehicle's
handling when driving in w inter condit ions . Be
cause of the ir construction (width, compo und,
tread pattern), summer t ires prov ide less traction
on ice and snow.
.., Use winte r tir es on all four whee ls .
.., Only use winter t ires that are approved for your
vehicle.
.., Please note that the maximum permitted
speed may be lower with winter tires
c:> .&,.
Your authorized Audi dealer or authorized re
pai r facility can inform you about the maximum
permitted speed for your tires.
.., Check the tire pressure after installing wheels
c:> page 245.
The effectiveness of winter tires is reduced great
ly when the tread is worn down to a depth of
0 .1S7 inch (4 mm). The characteristics of w inter
tires also decrease greatly as the tire ages, re
gardless of the remaining tread.
A WARNING
-Never dr ive faste r than the maximum per
mitted speed for your t ires. This could cause
the tires to heat up too much . Th is increases
the risk of an accident because it can cause
the tire to burst .
250
-Always adapt your driving to the road and
traffic cond itions. Drive carefully and reduce
your speed on icy or slippery roads. Even
w inter t ires can lose traction on black ice.
@ For the sake of the environment
Reinstall summer tires at the appropriate
time, beca use they provide better handling
when roads are free of snow and ice. Summer
tires cause less road noise, tire wear and fuel
consumpt ion.
(D Tips
You can a lso use all season tires instead of
winter tires. Please note that in some coun
tries where w inter t ires are required, only win
ter tires with the
& symbol may be permit
ted.
· Snow chains
Snow chains improve traction in the snow .
.., Only install snow chains on the rear wheels .
.., Check and correct the seating of the snow
chains if necessary after driving a few feet. Fol
low the instruct ions from the manufacture r.
.., Note the maximum permitted speed when dr iv
ing w ith snow chains . Do not exceed 30 mph
(SO km/h) .
Snow cha ins not onl y improve the
driving in w in
ter road conditions , but also the
braking .
Use of snow chains is only permitted with certain
rim/tire combinations due to technical reasons .
Check with a n author ized Audi dealer or author
iz ed repair facility to see if you may use snow
c hains.
Use
fine-mesh snow chains. They must not add
more than 0.53 inch (13.5 mm) in he ight, includ
i ng the cha in lock.
You must remove the chains when driving on
roads that are
free of snow. When roads are free
of snow , snow cha ins can impair hand ling and
damage the tires, and the chains will quick ly be
destroyed. .,.
Wheels
Indicator lights
ti] Loss of pressure in at least one tire c::> &
Check the tires and replace or repa ir if necessary.
Check/correct the pressures of all four tires and
store the pressure again in the Infotainment sys
tem
c::> page 254 .
ffim (Tire Pressure Monitoring System) Tire pres
sure: System malfunction!. If
iUm appears after
switching the ignition on or while driving and the
ti] indicator light in the instrument cluster
blinks for approximately one minute and then
stays on, there is system malfunction. Try to
store the correct tire pressures
c::> page 254 . If
the indicator light does turn off or turns on again
after a short period of time, drive to your author ized Audi dealer or qualified repair facility imme
diately to have the malfunction corrected.
A WARNING
- If the tire pressure indicator appears in the
display, reduce your speed immediately and
avoid any hard steering or braking maneu
vers. Stop as soon as possible and check the
tires and their pressure.
- The driver is responsible for maintaining the
correct tire pressure. You must check the
ti re pressure regularly.
- Under certain conditions (such as a sporty driving style, winter conditions or unpaved
roads), the tire pressure monitoring system
indicator may be delayed .
(D Tips
- The tire pressure monitoring system can al
so stop working when there is an ESC mal
function .
- Using snow chains may result in a system
malfunction.
- The Tire Pressure Monitoring System in your Audi was calibrated with "Audi Original
Equipment tires"
c::> page 242 . We recom
mend that you use these tires .
254
· Storing tire pressures
Applies to vehicles: with tire pressure monitor ing system
If the tire pressure changes or a tire is replaced,
it must be confirmed in the Infotainment sys
tem .
.,. Make sure before storing that the tire pressures
of all four tires meet the spec ified values and
are adapted to the load <=:>page 245.
.,. Switch the ignition on.
.,. Select: the
I CAR I funct ion key > Tir e Pressure
Monitoring System
> Yes, store now. Or
.,. Select: the
I CARI function button > Car Sys
tems*
control button > Servicing & checks >
Tire pressure monitoring > Store tire pressures
> Yes, store now.
(D Tips
Do not store the tire pressures if snow chains
are installed.