72 On the road
By pressing the I STAR T ENGINE S TOP I button
without depressing the brake peda l, the igni
tion is on and switched
off by pressing it
again .
After a cold engine is started, the re may be a
brief period of increased noise because oil
pressure must first bu ild up in the hydraulic
va lve adjusters. This is normal and not a cause
f or concern.
If the engine should not start immediately,
the starting process is automatically stopped
after a short time . Repeat starting procedure.
Driver m essag e in th e in strum ent clu ster
d is pl ay
P re ss brake pedal to sta rt engi ne
This message appears if you press the
I START ENGINE STOP ! button to start the en
gine and do not depress the brake peda l. The
engine can on ly be started if the brake pedal
is depressed.
B C o nve nience ke y: Is ke y not in th e vehi
cle?
This message appears a long with the B sym
bol i f the master key is removed from the ve
hicle with the engine r unning . It is intended
to remind you (e .g . when changing drivers)
not to continue the journey without the mas
te r key .
If the master key is no longer in the vehicle,
you cannot switch on the ignit ion after stop
ping the engine and yo u also cannot start the
engine again. Moreover, you cannot lock the
vehicle from the outs ide with the key.
S hift to P , o ther wise v ehicl e can roll away.
Doors do not lock if le ver i s not i n P.
This message appears for sa fe ty reasons
a long w ith an audib le warning tone if the
P
selector lever posit ion is not engaged when
stopping the eng ine with the
I STAR T ENGINE S TOP ! button. Select the P se
lector lever posit ion. Otherwise the veh icle
could roll and it cannot be locked .
Key not recogni sed . H old bac k of ke y against
ma rked are a. See o wner' s manual.
If the indicator l ight turns on and this mes
sage appears, there is a malf unct ion
¢ page 73.
Steering lock
The steering locks when you turn the eng ine
off using the I STAR T ENGINE S TOP I butto n
and open t he driver's doo r. T he loc ked s teer
i ng helps prevent vehicle theft.
& WARNING ~
- Never a llow the engine to run in confined
spaces -danger of asphyx iat ion .
- Never turn
off the engine until the vehi
cle has come to a complete stop .
- The brake booster and powe r steering
only work when the engine is running . If
the engine is
off, you have to use more
force when steering or brak ing . Because
you cannot steer and brake as you usual ly would, th is cou ld lead to crashes and
serious injuries .
(Q) Note
-Avo id h igh engine rpm, full thrott le and
heavy eng ine loads until the eng ine has
reached operating temperature -other
wise you risk engine damage .
- The engine cannot be started by pushing
or towing the vehicle.
- If the eng ine has been under heavy load
for an extended per iod, heat builds up in
the engine compartment after the en
gine is switched
off -there is a risk of
damaging th e engine. Allow the engine
to run at idle for about 2 minutes before
switching it
off .
@ Tips
-If you open the driver's doo r with the ig
nition on, a buzzer sou nds and the mes
sage
Ignition i s on appears in the instru
ment cl uste r display . Sw itch the ignition
off . ll-
7 4 On the road
Electromechanical
parking brake
Operation
The electromechanical parking brake replaces
the hand brake.
Fig. 78 Center conso le: Park ing brake
~ Pull on the switch ®> r::!;> fig. 78 to apply the
parking brake. The indicator light in the
switch illuminates.
~ Step on the brake pedal or the accelerator
pedal and press the switch
®) at the same
t ime to release the parking brake . The indi
cator light in the switch goes out.
Your veh icle is equipped with an electrome
chan ical parking brake . The parking brake is
designed to prevent the vehicle from rolling unintent ionally and replaces the hand brake.
In addition to the normal functions of a tradi
tional hand brake, the electromechan ical
parking brake provides various convenience
and safety functions.
When starting from rest
-The integral starting assist helps you when
dr iv ing by automatically releasing the park
ing brake
r::!;> page 75, Starting from rest.
- When sta rting on inclines, the starting as
s ist prevents the vehicle from unintentional
ly rolling back . The brak ing force of the
parking brake is not released until sufficient
dr iv ing force has been built up at the
wheels .
Emergency brake function
An emergency brake ensures that the veh icle
can be slowed down even if the
normal brakes
fail ¢
page 76, Emergency braking.
Indicator lights
-If the parking brake is closed with the ign i
tion
switched on the indicator lights come
on - (USA mode ls)/ . (Canada models)
in the instrument cluster and in the switch.
- If the pa rking brake is closed with the ign i
tion
switched off the indicator lights come
on - (USA mode ls)/ . (Canada models)
in the instrument cluster and in the switch
for about 20 seconds.
A WARNING
-Do not press the accelerator pedal inadver-
tently if the vehicle is stationary but the
engine is running and a gear is selected .
Otherwise the vehicle w ill start to move
i mmediately and could result in a crash.
(D Note
If the symbol . in the display or the indi
cator light
1111 (USA models)/ . (Cana
da models) in the instrument cluster flash
es, there is a ma lfunction in the brake sys
tem. Please refer to the detailed descrip
tion of the indicator lights
r::!;> page 14.
- If the indicator light- (USA mod-
els)/ . (Canada models) or
IIJ tur ns
on, there may be a malf unct ion in the
parking brake
¢page 15.
(0 Tips
-Yo u can apply the parking b rake at any
time - even with the ign ition sw itched
off . The ignition must be on in order to
release the parking brake.
- Occasional noises when the parking
brake is applied and released are normal
and are not a cause for concern .
- When the vehicle is parked, the parking
brake goes through a self-test cycle at
regu lar intervals. Any associated noises
are normal.
Cruise control
Switching on
Applies to vehicles: with cr uise contro l
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph
(30 km/h).
0
•
~
0
Fig . 79 Contro l lever with set button
Fig. 80 Display: Selected speed
• Pull the lever to position (D ¢ fig. 79 to
switch the system on.
• Drive at the speed you wish to set.
• Press button @to set that speed.
The stored speed and the indicator light
lff;(1)~1~ (US models) 111 (Canad ian models) ap
pear in the instrument cluster display
¢ fig. 80. The display may vary, depending on
the type of display in your vehicle . The indica
tor
light ll in the instrument cluster also illu
minates.
This information is also shown briefly in the
Head-up Display*.
The speed is kept constant via an engine out
put adjustment or active brake intervention .
On the road 77
A WARNING
-Always pay attention to traffic even when
the cruise control is switched on. You are
always responsible for your speed and
the distance between your veh icle and
other veh icles .
- For safety reasons, the cruise contro l
should not be used in the city, in stop
and-go traffic, on twisting roads and
when road conditions are poor (such as
ice, fog, gravel, heavy rain and hydro
planing) -risk of accident .
- Turn off the cruise control temporarily
when entering turn lanes, highway exit
lanes or in construction zones .
- Please note that inadvertently "resting"
your foot on the accelerator pedal causes the cruise control not to brake. This is
because the cruise control is overridden
by the driver's acceleration.
- If a brake system malfunction such as
overheating occurs when the cruise con
trol system is switched on, the braking
function in the system may be switched off. The other cruise control functions re
ma in active as long as the indicato r light
mmlm (US models) !Iii (Canadian mod
e ls) is on.
(D Tips
The brake lights illuminate as soon as the
brakes decelerate automatically.
Changing speed
Applies to vehicles: wi th cruise co ntrol
• Press lever in the 0 or 0 direction
¢ page 77, fig. 79 to increase or decrease
your speed .
• Release the lever to
save that speed.
Change speed in in crements of 1 mph (1 km/
h) by lightly pressing the lever. If you keep the
lever pressed down, you will a lter your speed
in 5 mph (10 km/h) increments.
You can also press the accelerator pedal down
to increase your speed, e.g . if you want to
II>
78 On the road
pass someone. The speed you saved earlier
will resume as soon as you release the acceler
ator peda l.
If , however, you exceed your saved speed by
6 mph (10 km/h) for longer than 5 minutes,
the cruise contro l wi ll turn off temporarily.
The green symbo l
IB;(l)~i~ (US models) ;II
(Canad ian models) in the display will go out
but the saved speed remains the same.
Presetting your speed
Applies to vehicles: with cruise control
You con preset your desired speed while the
vehicle is not moving .
.. Switch on the ignition .
.. Pu ll lever into position@¢
page 77,
fig. 79.
> Press the lever in the 0 or 0 direction to
i ncrease or decrease your speed .
.. Release the lever to save that speed .
This funct ion makes it possible, for example,
to save the speed you want before driving on
the highway . Once on the highway, activate
the cruise control by pull ing the lever toward
@ .
Switching the system off
Applies to vehicles: with cruise control
Temporary deactivation
.. Press the brake peda l, or
.. Press the lever into position @ (not clicked
into pla ce)
¢ page 77, fig. 79, or
.. Drive for longer than 5 minutes at more
than 5 mph (10 km/h) above the stored
speed.
Switching off completely
.. Press lever into position @(clicked into
pla ce), o r
.. Switch the ignition off.
The system reta ins the saved speed if you de
activate the cruise control tempo rari ly. To re
sume the saved speed, release the brake ped
a l and pull the lever to position@. Switching
the ignition off erases the saved
speed.
A WARNING
-You shou ld only return to the saved speed
if it is not too fast for the c urrent traffic
conditions -risk of an accident!
Adaptive cruise control and braking guard 81
The adaptive cruise control system only reacts
to objects that are moving or that the system
has already detected and reg istered as mov
ing.
Adaptive cruise control
Description
Applies to vehicles: with adaptive cruise control
Fig. 84 Detection range
What can adaptive cruise control do?
The adaptive cruise control system uses video,
radar and ultrasound. Moving vehicle ahead
can be recognized up to about 650 feet (200 m) away.
On open roads with no traffic, adaptive cruise
control works like a regular cruise control sys
tem. The stored speed is maintained. When
approaching a moving vehicle detected up
ahead, the adapt ive cruise control system au
tomatically slows down to match that vehi
cle's speed and then maintains the distance
that the driver previo usly stored. As soon as
the system does not detect a vehicle up
ahead, adaptive cruise control accelerates back up to the stored speed.
In stop-and-go traffic, adaptive cruise control
can brake until the vehicle stops if this is pos
sib le within the systems' limits and capabili
ties. ACC will not make an emergency stop.
Pull the lever
c:> page 81, fig. 85 towards
you into position @to reactivate ACC, the ve
hicle will move forward when the vehicle in
front of you starts moving aga in. You can also
depress the accelerator to move forward
again
¢ page 82.
Which functions can be controlled?
When you switch adaptive cruise control on,
you can set the current speed as the " contro l
speed"
c::>page 81, Switching on and off.
When driving, you can stop cruise control
¢ page 83 or change the speed ¢ page 83
at any time.
You can also set the distance to the object ahead and set the adaptive cruise control d riv
ing program
¢ page 84.
Switching on and off
Applies to vehicles: with adaptive cruise control
Fig . 85 Operating lever: switching on/off
Fig. 86 Inst rument cluster: adaptive cruise control
You can set any speed between 20 mph and
95 mph (30 and 150 km/h) .
An additional indicator appears in the Head
up Display*.
Switching adaptive cruise control on
.. Pull the lever toward you into position (D
r=> fig. 85. ACC standby appears in the in
strument cluster display.
~ 9 I ..,. ID
82 Adaptive cruise control and braking guard
Setting the speed and activating
regulation
.. To set the current speed, press the I SET !
button ¢ fig. 85. The set speed is shown in
the tachometer @and in the display
¢
fig . 86. You must also press the brake
pedal when the vehicle is stopped.
Switching adaptive cruise control off
.. Push the lever away from you into position
@ until it clicks into p lace. The message
ACC off appears.
Indicator lamps and messages in the instru
ment cluster display inform you about the cur
rent system status and settings.
@ Indicator lights
II -adaptive cruise control is switched on. No
vehicles are detected up ahead. The stored
speed is ma intained.
I -A moving vehicle is detected up ahead.
The adaptive cruise control system regulates
the speed and distance to the moving vehicle
ahead and acce lerates/brakes automat ically.
fij-adaptive cruise control is switched on. A
moving vehicle up ahead was detected. Your
vehicle remains stopped and will not start driving automatically.
I-When a utomat ic brak ing is not able to
keep enough distance to a previously detected
moving vehicle up ahead, you must take con
trol and brake¢
page 83, Prompt for driver
intervention.
© Display
If adaptive cruise control is not shown in the
display, you can call it up with the multifunc
tion steering wheel buttons¢
page 22.
Based on the symbo ls in the display, you can
determine if the system is main taining a dis
tance to the vehicle ahead and what that dis
tance is .
No vehicle -No vehi cle ahead was detected.
White vehicle -A vehicle ahead was detected.
Red vehicle -Prompt for the driver to take ac
tion ¢
page 83 .
Both arrows on the scale © indicate the dis
tance to the vehicle ahead. No arrow appears
when the vehicle is on an open road and the re
is no object ahead. If an object is detected
ahead, the arrow moves on the scale.
T he green zone on the scale shows the stored
distance . For information on changing the
stored distance ¢
page 84. If the distance
selected is too close or may soon become too
close, the arrows move into the red zone on
the scale.
A WARNING
Improper use of the adaptive cruise con
trol can cause collisions, other accidents
and serious personal injur ies.
- Pressing the
!SET ! button when driv ing at
speeds below
20 mph (30 km/h), w ill au
tomatically accelerate the vehicle to
20
mph (30 km/h), which is the minim um
speed that can be set.
(D Tips
-If you switch the ignit ion or the adaptive
cruise contro l off, the set speed is e rased
from the system memory.
- You cannot switch the Electron ic Stabili
zation Program (ESP) to the SPORT mode
when adaptive cruise control is sw itched
on.
Driving in stop-and-go traffic
Applies to vehicles: with adaptive cruise control
The adaptive cruise control system also as sists you in stop-and-go traffic. If a previous
detected vehicle ahead stops, your vehicle will
brake to a stop, within the limits of the sys
tem.
.. To resume driving with adaptive cruise con
trol, tap the acce lerator pedal or
.. Pull the lever toward you into position @
¢ page 81, fig. 85. .,.
Adaptive cruise control and braking guard 83
@ Tips
-If adaptive cruise contro l is active and
your vehicle does not start dr iving as ex
pected after pulling the lever once, you
can start out aga in by tapping the accel
erator pedal.
- If an obstacle is detected when your ve
hicle starts dr iv ing, the system w ill
prompt you to take over
c:> page 83.
Your vehicle w ill dr ive more slowly when
starting. This may also happen in some
situations when there no obstacle is ap
parent .
Interrupting cruise control
App lies to vehicles: with a daptive cruise co ntrol
Requirement : adaptive cruise control must be
switched on.
Overriding cruise control
• To accelerate manually, pull the lever to
ward you into position@¢
page 81, fig. 85
and hold it th ere . The message ACC override
appears . Or
• press the accelerator peda l.
• To resume cruise control, release the lever
or take your foot off the accelerator pedal.
Canceling cruise control while driving
• Move the lever into position @. Th e mes
sage
ACC standby appears. Or
• press the brake pedal.
• To resume the stored speed, move the lever
into position @.
Canceling cruise control when stopped
• Push the lever away from you into position
@ . The message
ACC standby appears.
• To resume cruise control, press the brake
pedal and pull the lever toward you into po
sition @.
A WARNING
Improper use of the adaptive cruise con
trol can cause coll is io ns, othe r acc idents
and ser ious personal inj uries. -
Never resume the stored speed if the
speed is too high for prevailing road,
traffic or weather conditions.
Prompt for driver intervention
Applies to vehicles: wit h adapt ive c ruise contro l
Fig. 87 Instrument cluste r: req uest for driv er interve n
tion
In certain situations, the system will prompt
you to take action . For example, braking by
the adapt ive cruise control system is not
enough to maintain enough distance to the
vehicle ahead.
The indicator light
I and the symbol in the
display will warn you about the situation
c:> fig. 87. You w ill also hear an acoustic signal.
- Press the brake pedal to slow your vehicle
down .
Changing the speed
Applies to veh icles: w it h adaptive c ru ise contro l
0
f
• 0
Fig. 88 Operatin g lever: changing the speed
• To incr ease or reduc e the speed in incre
ments,
tap the lever up or down.
• To increase or reduce the speed qu ickly,
hold the lever up or down until the red LED .,._
Adaptive cruise control and braking guard 85
@ Tips
- Distance 3
is set automatically each time
you switch the ignition on.
- Your standard settings are automatically
stored and assigned to the remote con
trol key being used.
Audi braking guard
Descript ion
Applies to vehicles: with adaptive cruise contro l
Fig. 90 Instrument cluster: approach warning
Audi braking guard uses radar sensors and a
video camera. It is active at speeds above
about 6.2 mph (10 km/h) and also works
within system limits when adaptive c ruise
control is switched off.
On vehicles w ith adaptive cru ise control and
Audi side assist (Aud i pre sense plus), system
functions also engage when a collision is im
minent
c::> page 182.
What can Audi braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes sud
denly or if your own veh icle is traveling at a
h igh speed and approaching a veh icle up
ahead that is moving more slowly . Audi brak
in g guard does not react if it cannot detect
the situation.
The system advises you of various s ituations:
- The
distance warning is given if you are too
close to the vehicle ahead for a long time. If
the vehicle ahead brakes sharply, you will not be able to avoid a coll is ion . The ind icator
light
I in the disp lay comes on. Take imme- diate action to avoid
the collision and in
crease the distance to the vehicle up ahead.
- The
approach warning is given when a de
tected vehicle up ahead in your lane is mov
ing much more slowly that you are or if it
brakes sharp ly. When this warning is given,
it may only be possible to avoid a collision
by swerving or braking sharply. The indicator
light
I and the symbol in the display will
warn you about the danger
c::> fig . 90 . You
w il l also hear an acoustic signal.
If you do not react fast enough or do not react
at all to the situation, Audi braking guard w ill
intervene by braking and the message
braking
guard intervention
will appear.
- If a collision is imminent, the system will
first provide an
acute warning by braking
sharply.
- If you do not react to the acute warning, Au
di braking guard will brake w ith increased
force in severa l stages to reduce the speed
in a poss ible collis ion. On veh icles with
adaptive cruise control and Audi side assist
(Audi pre sense plus), the system can brake
with increasing force up to maximum dece l
eration shortly before a sensed collision
c::>page 182.
-If the Audi braking guard senses that you
are not brak ing hard enough when a colli
sion is imminent, it can increase the braking
force.
Audi braking guard takes the driver's reaction
time into consideration in order to provide
timely warnings. The system reaction time de
creases automatically in some situations, for
example when it detects acce lerator pedal use
or steering input . The Audi braking guard in
tervent ion stops in certa in situations, for ex
amp le if you press the accelerato r pedal to
pass the vehicle moving ahead of you in your
lane .
Which functions can be controlled?
You can switch Audi braking guard and the
distance/approach warning on or
off i n the
MM I ¢ page 86, Settings in the MMI.