brakes AUDI TT ROADSTER 2018 Owners Manual

Instruments and indicator lights
10
Eng ine con trol
¢ page 14
Em iss ions co ntrol system
¢ page233
Eng ine speed limitat io n
¢ page 15
Eng ine oil level ( MIN) *
¢page 15
Engi ne oil senso r
¢page 15
Batte ry charge
¢ page 12
Tank sys tem
¢page 15
W ash er fluid level
¢page 15
W indshield wipe rs
¢ page 16
Remote con trol key
¢ page 59
Batte ry in remote control key
¢ page 24
Bulb failure ind icator*
¢page 1 6
H eadlight range control system
¢ pag e 16
Adaptive lig ht*
¢ page 16
Light/ rain sensor *
¢page 16
Trans miss io n
¢page 68
S teer ing lock
¢ page 13
Eng ine start system
¢ page 13
Ce ntral indicator light
¢ page 13
Elect romecha nica l steer ing/
¢ page8 9
Suspension cont rol*
¢ page 16
Rear spoiler
¢page 90
Other indicator lights
-Ii
ii T
ur n sign als
¢ page 16
CRUISE
USA models : cru ise co ntrol system*
¢ page 71
Canada models: cr uise con trol sys­
t em*
¢ page 71
- Ac
tive lane ass ist*
¢ page 73
Conve nience key
¢ page 60
Electromechan ica l park ing bra ke
¢page 11
Active lane assist *
¢page 73
Audi side assist *
r=;, page 7 7
Tra nsm iss io n
c:::> page 68
Ele ct romecha nical par king brak e
¢page 11
USA models: speed war ning sys­
t em *
¢page 71
Canada models: speed war ning sys ­
t em *
¢page 71
- H
igh beams
. ¢ page 39
BRAKE/{©) Brake system
If this indicato r light turns on, t here is a malf unc ­
tion in the brake system.
1111 (USA models) / . (Canada models)
Brakes : stop vehicle and check brake fluid level
Stop t he veh icle and check t he b rake fl uid leve l.
See a n au thor ized Audi de aler or au thor ized A udi
Se rvi ce Faci lity for assis tan ce if n ecess ary.
1111 (USA models) / . (Canada models)
Warning! No brake booster

Cl 00 .-< N r-­N .-< 0 r-­Vl 00
If brake assist (brake booster) is not working, you
have to use much more force when braking the
vehicle. See an authorized Audi dealer or author­
i zed Audi Service Facility for assistance.
1111 (USA models) /. (Canada models)
Brakes: malfunction! Please stop vehicle safely
If the ABS indicator light rJ]) (USA models) /
¢e'A (Canada models), the ESC indicator light GJ.
and the brake system indicator light 1111 (USA
models)/ . (Canada models) turn on and this
message appears, then the ABS, ESC and braking
distribution are
malfunctioning¢ &.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected
¢ & .
1111 (USA models) /. (Canada models)
Parking brake: malfunction! Safely stop vehicle.
See owner's manual
- If the indicator light and the message appear
when the vehicle is stationary or after switch­
ing the ignition on,
check if you can release the
parking brake. If you cannot release the park­
ing brake, see an authorized Audi dealer or au­
thorized Audi Service Facility. If you can release
the parking brake and the message still ap­ pears, see an authorized Audi dealer or author­
ized Audi Service Facility immediately to have
the malfunction corrected.
- If the indicator light and message appear
while
driving,
the hill start assist or emergency brak­
ing function may be malfunctioning. It may not
be possible to set the parking brake or release
it once it has been set. Do not park your vehicle
on hills. See an authorized Audi dealer or au­
thorized Audi Service Facility for assistance.
(USA models): if the
1111 and Ei] indicator
lights turn on together, have the brake system
checked immediately by an authorized Audi deal­
er or authorized Audi Service Facility
¢page 14.
There is also a warning tone when the lights turn
on.
Instruments and indicator lights
A WARNING
-- Read and follow the warnings in
¢ page 233, Working in the engine com­
partment
before opening the hood and
checking the brake fluid level.
- If the brake system indicator light does not
turn off or it turns on while driving, the
brake fluid level in the reservoir is too low,
and this increases the risk of an accident .
Stop the vehicle and do not continue driv­
ing. See an authorized Audi dealer or au­
thorized Audi Service Facility for assistance.
- If the brake system indicator light turns on
together with the ABS and ESC indicator
lights, the ABS/ESC regulating function may
be malfunctioning. Functions that stabilize
the vehicle are no longer available. This
could cause the rear of the vehicle to
swerve, which increases the risk that the ve­
hicle will slide. Drive carefully to the nearest
authorized Audi dealer or authorized Audi
Service Facility and have the malfunction
corrected.
PARK/(®)f 'i®5, Electromechanical parking
brake
If the -(USA models) / . (Canada models)
indicator light turns on, the parking brake was
set.
-(USA models) / . (Canada models) Park­
ing brake: caution! Vehicle parked too steep
If the indicator light blinks and the message ap­
pears, there is not enough braking power to se­
cure the vehicle. The brakes have overheated. The
vehicle could roll away even on a small incline.
fcdA Parking brake: malfunction! Please contact
Service
There is a malfunction in the parking brake. Drive
to an authorized Audi dealer or authorized Audi
Service Facility immediately to have the malfunc­
tion corrected.
!il];!J:l;H3~ (USA models) / [iJ (Canada models)
Parking brake: caution! Vehicle parked too
steep
11

Instruments and indicator lights
If th e indicator lig ht blinks and t he message ap ­
pea rs, there is not eno ugh bra king power to se ­
cure the vehicle . The brakes have overheated. The
ve hicle co uld ro ll away eve n on a small incline .
llJ;l:l:);J;H~ (USA models) / Ii] (Canada models)
Parking brake: applied
If thi s m essage appears, p re ss the bra ke peda l
fir st and t hen release the p arking br ake if neces ­
sary .
(D Tips
For additional in format io n on t he parkin g
bra ke, see
q page 61.
_}_ Cooling system
• Turn off engine and check coolant level.
Th e co olan t leve l is too low .
Do not cont inue drivi ng a nd switch the eng ine
off. Check the coolan t leve l
q page 239 .
-If the coolant leve l is too low, add coo lant
q poge 240 . Onl y cont inue driv ing once the in­
dicator light t urns off .
• Coolant temperature: too high. Let engine
run with vehicle stationary
L et the eng ine run at id le for a few minutes to
coo l off, unt il the indicator light turns off .
- I f th e indic ator li ght d oes no t turn off, do no t
contin ue d riving the vehicle . See an au thori zed
Audi dealer or authorized A udi Se rvi ce Fac ility
fo r assistance .
A WARNING
-Never open t he hood if you can see o r hear
steam o r co olant esca ping from the eng ine
compartment. This inc reases t he risk of
bur ns. Wa it unti l you no long er see or h ea r
st eam o r coolan t esca ping .
- The eng ine compartmen t in any ve hicle can
b e a dangero us area. S to p the eng ine and
allow it to coo l before wo rking in the e ngine
compa rtm ent. A lw ays f ollow the in for ma­
tion fo un d in
q page 233, Wo rking in the
engine comportment .
12
@ Note
Do not conti nue driv ing if the . indicato r
ligh t tu rn s on as this increases the risk of en ­
g ine damage.
9=7: Engine oil pressure
• Turn off engine. Oil pressure too low
Stop t he e ngine and do not co nti nu e d riving .
Check the eng ine oi l level
q page 237.
- If the en gine o il level is too low, add engi ne oil
q poge 237. Only continue driving once the in ­
dicator light turns off .
- If the eng ine o il level is co rre ct an d t he indic a­
t o r lig ht still bli nks, t urn the engine o ff and do
not continue dr iving. See a n author ized A udi
dea le r or a uth orized Audi Serv ice Facility fo r as ­
sistance.
(D Tips
The o il press ure wa rning is not an oil leve l in­
d icator . A lways check t he oil leve l regula rly.
E::3 Generator/vehicle battery
• Electric system : malfunction! Battery is not
being charged
There is a ma lf u nction in the a lternato r o r the ve ­
hicle e lectrica l system.
Dr ive to an au thor ized A udi d ealer or au tho rize d
Audi Se rvice Fac ility immed iate ly . T urn off a ll un­
necessary e lect rical eq uipment because it will
dra in the battery. See an a uthorized Audi dea ler
or a uthori zed Aud i Serv ice Facility if the battery
c h arge level is too low.
(•) Electrical system: low battery charge. Bat­
tery will be charged while driving
The s ta rting ability may be imp aired.
If this m essage turns off af ter a litt le whi le, t he
vehicle battery ch arge d enoug h while d riv in g.
If the message does not t urn off , have an autho r­
i zed Audi dealer or author ized A udi Se rvice Facili­
ty repair the ma lfu nction .

Instruments and indicator lights
If th e II indica to r li gh t turns on, ESC sport
mo de was switched on using the
I~ O FF I button
¢ page
87 . You ca n tur n the ESC on again by
press the
I ~ O FF I button again.
Stabilization control (ESC): off . Warning! Re­
duced stability
If th e II in dic ator li ght t urns on, t he ES C was re ­
s tric ted o r swi tched o ff using the
I~ OF FI butt on
¢ page
87. Th e message ESC OFF also ap pears .
You can turn the ESC on again by press the
I ~ OFF I button agai n.
Th e sys tem swit ches on whe n the ign ition is
sw itche d on . The
II indica to r lig ht t urns off
when t he system is functioning fully .
Stabilization control (ESC) malfun ction! See
owner 's manual
Stabilization control (ESC/ ABS) malfunction!
See owner's manual
ABS: malfunction! See owner's manual
If t he D.J indicato r light and the ABS i ndicator
light
rJ] (USA models) 1 11] (Canada mo dels)
tur n on and this message appea rs, the re is a ma l­
f un ction in t he ABS system or e lectron ic diffe ren­
tial lock . This also ca uses the ESC to malfunc tion.
The brakes st ill func tion wi th the ir no rma l powe r,
but A BS is not a ct ive.
Drive to an a uth orized Aud i dea le r or a uth orized
Aud i Serv ice Facility immediately to have t he
malfunc tion corrected.
A WARNING
If the 1111 (U SA mod els) ,. (C anad a mod ­
el s) bra ke sy stem in dicator light tu rns on to­
ge the r wi th the A BS and ESC ind icat or lig hts,
th e A BS/ES C re gulat ing f unctio n may have
fai le d. Functions that sta bilize the ve hicl e are
n o l on ger available. T his co uld cause t he ve hi­
cle to swerve, w hich inc reases t he risk that
the vehicle will slide. Dr ive carefully to the
n ea rest author ized A udi dealer or author iz e d
Audi Serv ic e Facili ty a nd have the malf unc tion
co rrect ed.
14
(D Tips
Fo r additio nal info rmat io n on ESC an d ABS,
see ¢ page
86 .
{0) Brake pads
El] Brake pads: wear limit reached. You can con ­
tinue driving . Please contact Service
The brake pads a re worn .
Dr ive to an au thor ized A udi d ealer or au tho riz ed
Audi Se rvice Faci lity immed iate ly to h ave the
b ra ke pads checked.
Applies to: USA models
The El] ind ic at or lig ht tur ns o n to gether wi th the
1111 indica to r ligh t.
!f Safety systems
The El in dicator lig ht mon itors the safety sys ­
tems .
Safety system
If the Bl ind ic a to r lig ht t urns o n or bli nks, t he re
i s a m alfu nction in a s afety sys tem.
D rive to an au thor ized A udi dealer or au tho riz ed
Audi Se rvice Fac il ity i mme diately to have the
m alfunc tio n cor rec ted .
A WARNING
-
Ha ve the s afety sy stem s in sp ecte d imm ed i­
ate ly. Oth erwise, t he re is a r is k th at the sys ­
tems may not activate during a collisi on,
wh ich inc reases the risk of serio us inju ry or
d eat h.
d:::i Engine control
If the II ind icator light turns on if there is a mal­
funct io n in the eng ine control.
D rive slowly to an a uth orized Audi dea ler or au ­
t h orized Audi Serv ice Facility to have t he engine
c h ecke d.

Drivin g
Driving
General information
Breaking in
A new vehicle must be broken in for the first 1,000 mi les (1,500 km). Do not dr ive at speeds
t hat will exceed 2/3 of the max imum pe rm itted
engine speed (RPM) for the first 600 miles
(1,000 km), and avoid fu ll acceleration during
this period . You may gradually start increasing
the RPM and the speed between 600 miles
(1,000 km) and 1,000 miles (1,500 km) .
During the first hours of use, the engine has a
higher internal friction than later on when all
moving parts have settled into place with each
other.
How the vehicle is driven d uring the first 1,000
miles (1,500 km) a lso affects the engine quality .
Drive at moderate engine speeds after the initial
break-in per iod, part icu larly when running a cold
eng ine . Th is will reduce eng ine wear and improve
the m ileage.
Do not drive at too
low of an engine speed (RPM).
Shift down if the engine stops running "smooth­ ly". Extremely high eng ine speeds are automati­
cally reduced .
Reducing the risk of vehicle damage
@ Note
When driving on poo r roads, by cu rbs and on
s teep ramps, make su re t hat low-hang ing
compone nts such as the spo ile r and exha ust
system do not come into contact with these
or they could be damaged. This especially ap ­
plies to vehicles with low ground clearance
and veh icles that are heavily loaded.
Driving through water on roads
Note the following to reduce the r isk of vehicle
damage when driv ing through water, for example
on flooded roads :
- The water must not be any higher than the bot­
tom of the vehicle body .
56
-Do not drive faster than walking speed .
A WARNING
After driving through water or m ud, the effec­
tiveness of the brakes may be red uced due to
mo isture on the brake rotors and brake pads.
A few careful brake applications shou ld dry
off the brakes and restore the full braking ef­
fect .
@ Note
Vehicle components such as the engine,
transmission, suspension or electr ica l system
can be severely damaged by driving through
water.
{D Tips
- Determine the depth before driving through
water.
- Do not stop the vehicle, drive in reverse or
switch t he engine off whe n driving through
water.
- Keep in mind that oncom ing vehicles may
create waves that raise the water level and
make it too deep fo r yo ur vehicle to drive
throug h safe ly.
- Avoid driv ing th rough salt water, because
this ca n cause cor rosion .
Economical and environmentally-friendly
driving
The amount o f fuel consumption, the environ ­
mental impact and the wear to the engine,
bra kes and tires depends mostly on your d riving
style. With an ant icipatory and economic driving
sty le, fuel consumpt ion can be reduced by ap­
prox imately 10-15% . The follow ing t ips will help
you conserve the environment and your money at
t h e same time .
Anticipatory dri ving
A vehicle uses the most fuel when accelerating.
When you drive with anticipation, you do not
need to brake as often and so you acce lerate less .
When poss ible, let you r vehicle coast with a
gear
engag ed ,
for examp le, when you not ice that the
next t raff ic light is red.
Ill>

Driving
When parking on a level surface, simply place the
selector lever in the "P" position. On inclines, ac­
tivate the parking brake first and then move the
selector lever to the "P " position
c> page 61 . This
prevents the locking mechanism from being
loaded too heavily and will make it easier to
move the selector lever out of the "P" position.
A WARNING
- The vehicle can roll even when the engine is
switched off .
- Unintended vehicle movement can lead to
serious injuries.
- Never leave your vehicle with the engine
running while in gear . If you must leave
your vehicle when the engine is running, set
the parking brake and move the selector lev­
er to the P position.
- Power is still transferred to the wheels
when the engine is running at idle. To pre­
vent the vehicle from "creeping", you must
keep your foot on the brake when the en­
gine is running and the selector lever is in
the "D" , "S" or "R" position or "tiptronic"
mode is selected.
- Do not inadvertently press the accelerator
pedal when the vehicle is stationary. Other­
wise the vehicle will start to move immedi­
ately, even if the parking brake is set . This
could result in a crash .
- Do not press the accelerator pedal when
changing the selector lever position while
the vehicle is stationary and the engine is
running .
- Never engage the R or P selector level posi­
tions while driving. It could cause a crash .
- Before driving down a steep slope, reduce
your speed and shift into a lower gear with
"ti ptron i c" .
- Do not ride the brakes or press the brake
pedal too often or too long when driving
downhill. Constant braking causes the
brakes to overheat and substantially re­
duces braking performance, increases brak­
ing distance or causes complete failure of
the brake system.
- If you must stop on an incline, always hold
the vehicle in place with the foot brake or
66
parking brake to prevent it from rolling
back .
- Never hold the vehicle on an incline with a
slipping clutch. The clutch opens automati­
cally when it becomes too hot from the
overload. The
ml indicator light turns on
and a message appears
c> page 68 when
the clutch is overloaded .
- If the engine must run while you are work­
ing in the engine compartment with the
hood open, make sure a gear is not engag­
ed. The selector lever must be firmly in the
P position and locked in place and the park­
ing brake must be set
c> page 233. Other­
wise, the vehicle could begin moving when
increasing the engine speed, even with the
parking brake set.
@ Note
- When stopping on an incline, do not try to
hold the vehicle in place by pressing the ac­
celerator pedal while a driving gear is se­
lected. This can cause the automatic trans­
mission to overheat and can damage it. Set
the parking brake or press the brake pedal
to prevent the vehicle from rolling.
- Allowing the vehicle to roll when the engine
is stopped and the selector lever is in the N
position will damage the automatic trans­
mission because it is not lubricated under
those circumstances.
- The transmission can overheat and be dam­
aged under certain driving and traffic condi­
tions such as frequent starts, creeping for a
long time , or stop-and-go traffic . When the
ml or. indicator light turns on, stop the
vehicle at the next opportunity and let the
transmission cool
c> page 68.
- Allowing the vehicle to roll when the engine
is stopped will damage the S tronic trans­
mission because it is not lubricated
c> page 285, Towing with a tow truck .
(D Tips
For safety reasons, the parking brake is re­
leased automatically only when the driver's
safety belt is fastened.

Cl co .... N ,....
N ...... 0 ,....
Vl co
Hill descent control
The hill descent control system assists the driver
when driving down hills .
Hill descent control is activated when the selec­
tor lever is in the "D" or "S" position and you press the brake pedal. The transm iss ion auto ­
mat ically selects a gear that is suitable for the
h ill. Hill descent con trol tries to maintain the
speed ach ieved at the t ime of b raking, w ith in
phys ica l and technical limi tatio ns. If may still be
necessa ry to adjust the speed with the brakes .
Because hill descent contro l cannot sh ift down
farther than 3rd gear, it may be necessary to
shift into tiptronic mode in very steep areas. In
this case, shift manually into 1st or 2nd gear in
tiptron ic mode to use the engine 's braking force
to relieve the brakes .
Hill descent control switches off once the hill lev ­
els out or you press the accelerator pedal.
On vehicles with a cruise contro l system*
¢ page 71, hill descent control is also activated
when the speed is set .
A WARNING
Hill descent control cannot overcome physical
limitations , so it may not be able to maintain
a constant speed under all condit ions . Always
be ready to apply the brakes .
Shifting manually (tiptronic mode)
The tiptronic mode allows the driver to shift the
gears manually .
Fig. 73 Center co nso le: s hift ing ma nually w it h the selector
l ever
D rivi ng
Fig. 74 Steer ing w hee l: sh ifting manually w it h the sh ift
padd les•
Shifting with the s elector le ver
"' 0 6
~
"'
Yo u can shift into tiptronic mode whi le stat ionary
and whi le driving.
.,. To shift into tip tronic mode, push the selec to r
lever from the D/S setting to the right in the
tiptronic shift gate . Once the t ransmiss ion has
switched modes, the selector lever position
M
is shown in the Infotainment system disp lay
¢ page 63, fig. 70. For examp le M4 means the
fourth gear is engaged.
.,. T o shift up a gear, tap the selector lever for ­
ward
0 ¢ fig. 73 .
.,. To shift down a gear, tap the selecto r backward
o.
Shift ing with the shift paddle s*
You can operate the shift paddles in the D/S or
M
(t iptronic shift gate) selector lever positions .
.,. To shift up one gear, tap the shift paddle 0
¢fig. 74 .
.,. To shift down one gear, tap the shift paddle 0 -
If the shift paddles are tapped w hile in the D/S
selector lever position, automatic mode switches off brief ly. To switch from manually sh ifting back
to automatic sh ifting immediately, tap the shift
paddle
0 ¢ fig . 74 for 1 second.
To keep sh ifting using the shift padd les, move
the selector lever to the rig ht out of the D/S posi­
t ion into the tiptronic shift gate.
The transmission automatically shifts up or down before cr itical engine speed is reached.
..,.
67

Ass is tanc e system s
the cruise control from braking. This is be­
cause pressing the accelerator pedal over­
rides the cruise contro l system .
- If a brake system ma lfunction such as over­
heating occurs when the cruise control sys­
tem is sw itched on, the braking function in
the system may be switched off . The rest of
the cruise control system functions remain act ive as long as
the @jll)~i~ (USA models) /
i'I (Canada models) indicator light is on.
(j) Tips
The brake lights turn on when the brakes are appl ied automatically .
Changing speed
Applies to: vehicles with cruise control system
.,. To inc rease/decrease the speed in increments,
br iefly
tap the leve r towa rd 0 10 ~ page 71,
fig.
77 up/down to the first level.
.. T o increase o r decrease the speed in incre ­
ments,
tap the lever toward 0 10 i::> page 71,
fig .
77 up/down to the second leve l.
.. To increase or decrease the speed quickly, hold
the lever in the
0 10 direct ion until the de­
s ired speed is reached .
Overriding the speed
Applies to: vehicles with cruise control system
You can press the accelerator pedal to increase
your speed, for example if you want to pass someo ne. The speed yo u set ea rlier w ill res ume
as soon as yo u release the acceler ator pedal.
H owever , if you are driving cons iderably faster
than the stored speed fo r a long period of time,
the cruise co ntrol system w ill tempora rily swi tch
off.
Th e@jll )~i~ (USA mode ls) tl'II ( C anada mod ­
e ls) indicator light in the inst rument cluste r
turns off and the stored speed is maintained .
Preselecting the speed
Applies to: vehicles with cruise control system
You can pre -select your desired speed when the
vehicle is stationary.
.,. Switc h the ign ition on.
72
.. Pull the lever into position (D ¢ page 71,
fig.
77 .
.. To increase or decrease the speed, tap the lever
toward
0 10 .
This function makes it possible, for example, to
save the speed you want before driving on the
highway. Once you are on the expressway, acti­
vate the cruise control system by pulling the lev­ er into position
(D .
Switching off
Applies to: vehicles with cruise control system
Deactivating temporarily
.. Press the brake pedal, or
.. Press the lever toward @ (not locked into
place)
~ page 71, fig . 77.
Switching off completely
.. Press the lever into position @(clicked into
place), or
.. Switch the ignit ion off .
T he speed you stored will be maintained if the
cruise contro l has been switched off temporarily .
To resume the stored speed, release the brake or
clutch pedal and pull the lever to position
(D .
Switch ing the ignit ion off w ill erase the stored
speed .
A WARNING
You should only resume the stored speed if it
is not too high for existing traff ic conditions.
Othe rw ise you can inc rease the risk of an acc i­
dent.
Audi active lane assist
Description
Applies to: vehicles with Audi active lane assist
Active lane assist detects lane marker lines w ith -
i n the lim its of the system using a camera in the
windshield. If you are approach ing a detected
lane marker line and it appears likely that you
will leave the lane, the system w ill warn you with
cor rective stee ring . You can over ride this stee ring
at any t ime. If you pass ove r a line, the stee ring
1111>

Intelligent Technology
Intelligent Technology Electronic stabilization
control (ESC)
Description
Elect ronic stabili zation control ( ESC) suppo rts
driver safety. It red uces the risk of slipping and
improves dr iving stabi lity. ESC detects crit ica l sit­
uations such as the vehicle overstee ring and un­
dersteeri ng or the w heels are sp inning. The vehi­
cle is stabilized by app lying the brakes or reduc ­
i n g e ngine torque . When the ESC engages, the
liJ indicato r light bli nks in t he instr ument clus­
t er.
The fo llow ing systems are in tegrated in the ESC:
Anti-lock braking system (ABS)
ABS p reve nts the whee ls from lock ing whe n brak ­
ing. The vehicle can st ill be steered even d uring
hard brak ing. Apply steady press ure to the bra ke
pedal. Do not pump the pedal. A puls ing in t he
b rake pedal indicates that the system is act ing to
s tabili ze the vehicle .
Brake assist system
The brake assist system can decrease brak ing dis­
tance . It inc reases brak ing power when the d river
presses the brake pedal q uick ly in eme rgency sit­
uations . You must press and hold t he b rake pedal
until the dangerous si tuatio n is ove r.
Anti-slip regulation (ASR)
ASR red uces eng ine power when the d rive wheels
begin sp inning a nd adapts the force to the road
conditions . This makes it easie r to start, acceler­
ate and dr ive u p hill s.
Electronic differential lock (EDL)
E DL applies the brakes to a wheel that sta rts
spi nning and t ransfe rs the d rive power to the
other driving wheels. This f unction is not availa­
b le at higher speeds.
In extreme cases, EDL automatically sw itches off
to keep the brake on the b raked wheel from over­
heati ng. The vehicle is st ill work ing correctly. EDL
86
will swi tc h on again automatically when condi ­
tions have retu rned to normal.
Power steering
The ESC can also support veh icle stab ility
t hr ough stee rin g.
Selective wheel torque control
Se lective wheel to rque con trol is used when d riv­
i ng on curves . The front whee l on the ins ide of
t h e curve or bo th whee ls on the i nside of th e
cu rve are braked se lective ly as needed. This al­
l ows mo re pre cise dr iving in curves .
_&. WARNING
-The E SC and i ts in teg ra ted systems cannot
overcome the lim its imposed by natura l
phys ica l laws. This is es pec ially important
on s lippery or wet roa ds.
If the systems be­
gin acting to stabilize yo ur vehicle, you
should immediately a lter your speed to
match the road and traffic conditions. Do
no t le t the inc reased safety p rovi ded tempt
you into taking risks. This could increase
y o ur r is k of a c oll is ion.
- Please note the r is k of a coll is ion increases
w hen dr iv in g fast, especially t hrough curves
a nd on sl ippery or wet r oads, and w hen dr iv­
ing to o cl ose to obje cts ahead. T he ES C and
it s i ntegrated systems cannot a lways pre ­
vent co llisions
-there is st ill a risk of acci­
dents!
- Press the accelerator peda l caref ully when
accelerating on even, slippery sur faces such
as ice and snow. The drive wheels can spin
even when these control systems a re instal­
led and this can affect driving stability and
increase the risk of a collision.
(0 Tips
- The ABS and ASR only funct ion correctly
when a ll four wheels have a sim ila r wear
co nditio n. D iffere nt tire sizes can lead to a
red uction in engin e power.
- You may hear noises when the systems de­
sc ribed are working .

Cl co .... N ,....
N .... 0 ,....
Vl co
Intelligent Technology
Switching on and off
ESC turns on automatically when you start the engine.
Fig . 9 4 Upper center console, fJ. OFF b utton
The ESC is designed to function in levels . Depend­
ing on the level selected, the ESC stabilization funct
ion is limited or switched off. The amount of
stab ilizat ion control will differ depending on the
level.
T he following examples are unusua l situations
where it may make sense to switch sport mode
o n in order to allow the wheels to spin:
- Rocking the vehicle to free it when it is stuck
- Dr iving in deep snow or on loose ground
- Dr iving with snow chains
Sport mode on ESC/ASR off Sport mode off or ESC/ASR
on
Behavio r
The ESC and ASR stabiliza- The stabilization funct ion is The full stabilization func-
tion funct ions are limited not availab le
¢ & . ESC and tion of the ESC and ASR is
¢ &. ASR are switched off. availab le aga in.
Operating Press the i.i, OFFI but ton Press and hold the 1-~ OFFI Press the j.i, OFFI but ton
briefly. button longer than 3 sec- aga in .
onds .
Indicator II turns on. Iii and 14-'ll•)H* tu rn on. II turns off or II and
light s 14-'ll•IH * tu rn off.
Messages Stab
ilization control (ESC ): Stab ilization con trol (ESC ): Stab ilization control
sport . Warning! Reduced off. Wa rning! Reduced sta -(ESC): on
stability
A WARNING
You shou ld only swit ch sport mode on or
switch ESC/ ASR off if your driving abilities
an d roa d conditions permi t.
bility
- T he stabilization func tion is limited w hen
sport mode is sw itched on. The driving
whee ls co uld spi n and the vehicle cou ld
swerve, espec ially on s lick or s lippery roa d
surfaces.
- There is no vehicle stabilization when ESC/
ASR are switched off.
(D Tips
- When t he cr uise control system is sw itched
on, ES C/ ASR cannot be sw itched off or sport
mode cannot be sw itche d on. -
Ma lfunctions in the rear spoiler or the A udi
magnetic ride may make it impossible to
switch t he ESC/ ASR off or to switch sport
mode on .
Brakes
New brake pads
New brake pads do not achieve their full braking
effect d uring the first 250 mi (400 km) . They
must be "broken in" first . Howeve r, you can com­
pensate fo r th e slig htly reduced b raking force by
pressing fi rm ly on t he b rake ped al. Avo id heavy
bra king d uring the brea k-i n pe riod .
.,.
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