Audi adapt ive cru ise control and brak ing gu ard
Audi adaptive cruise
control and braking
guard
Introduction
App lies to veh icles: w ith Audi adaptive cruise co ntrol
The adaptive cruise control system assists the
d river by regu lating veh icle speed and he lp ing to
maintain a set distance to the vehicle ahead ,
within the limits of the system. If the system de
tects a moving vehicle up ahead, adaptive cruise control can brake and then accelerate your vehi
cle. This he lps to make driving more comfortable
on long highway stretches.
The braking guard system can warn you about an impending collision and initiate brak ing maneu
vers
c> page 94.
Adapt ive cruise control and braking guard have
technical limitations that you must know, so p lease read this section carefully, understand
how the system works and use them properly at
all times.
General information
General information
A pp lies to veh icles: w ith Audi adaptive cruise control
Fig. 90 F ront of the ve hicle: Posit ion of rada r se nsor
The area that contains the radar sensor c::> fig . 90
must neve r be covered by stickers or other ob
jects or obstructed with dirt, insects, snow or ice
that will inte rfe re wi th the adapt ive cru ise con
trol system and brak ing guard. For information
on cleaning, refer to
c> page 181 . The same ap
plies for any modifications made in the front
area.
88
The function of the adaptive cruise contro l sys
tem and braking guard is limited under some
condit ions:
- Objects can on ly be de tected when they are
within sensor range
c> page 90, fig. 93.
- The system has a l imi ted ability to detect ob
jects that are a short d istance ahead, off to the
side of your vehicle or moving into your lane.
- Some k inds of veh icles are hard to detect ; fo r
example motorcycles, vehicles with high
ground clearance or overhanging toads may be
detected when it is too late or they may not be
detected at all .
- When driving through curves
c::> page 89 .
- Stationary objects c::> page 89.
& WARNING
-Always pay attention to traffic when adaptive
cruise control is switched on and braking
guard is active . As the driver, you are still re
sponsible for starting and for maintaining
speed and distance to other objects . Braking
guard is used to assist you . The driver must
a lways take action to avo id a collis ion. The
driver is always responsible for braking at the
cor rect t ime.
- I mproper use of adaptive cru ise con tro l can
cause collisions, other accidents and serious
personal inju ry.
- Never let the comfort and conven ien ce that
adapt ive cru ise control and brak ing guard
offer distrac t you from the need to be alert
to traffic cond itions and the need to remain
in full control of your vehicle at all times,
- Always remember t hat the adaptive cruise
contro l and brak ing guard have limits - they
will not slow the vehicle down or maintain
the set distance when you dr ive towards an
obstacle or something on or near the road
that is not moving, such as vehicles stopped in a traff ic jam, a stalled or disabled vehicle.
If registered by t he radar sensor, vehicles or
obstacles that are not moving can t rigge r a
co llision warning and if confirmed by the
video camera, a n acu te collision warning.
IJI,-
Audi adaptive cruise control and braking guard
Audi braking guard
Description
Applies to veh icles: w ith Audi adaptive cruise co ntrol
F ig. 100 Instrument cluster : approach warn ing
Braking guard uses a radar sensor. It also func
tions within the limits of the system when adap
tive cruise control is switched off.
What can Audi braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes suddenly
or if your own vehicle is traveling at a high speed
and approaching a vehicle up ahead that is mov
ing more slowly . Braking guard does not react if it
cannot detect the situation .
The system advises you of various situations:
- 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 collision. The indicator light.
in the display comes on .
- The
approach warning is given when a detected
vehicle up ahead in your lane is moving much
more slowly than you are or if it brakes sharply .
When this warning is given, it may only be pos
s ib le to avoid a collision by swerving or braking
sharply. The indicator light . and indicato r in
the display will wa rn you about the danger
¢ fig. 100 . You will also hear an acoustic signa l.
If you do not react fast enough or do not react at
all to the situation, Braking guard will intervene
by braking and the message
braking guard inter
vention
will appear.
ll Thi s is not available in so me c oun tries.
94
- If a co llision is imminent, the system wi ll first
provide an
acute warning by br iefly and sharply
app ly in g the brakes.
- If you do not react to the acute warning, brak
ing guard can brake within the limits of the sys
tem. This reduces the vehicle speed in the event
of a collision.
- At speeds under 20 mph (30 km/h), the system
can initiate a complete deceleration shortly be
fore a collisionl l_
-If the braking guard senses that you are not
braking hard enough when a collision is immi
nent, it can increase the braking force.
Which functions can be controlled?
You can switch braking guard and the distance/
approach warning on or off in the radio or MMI
c> page 95, Settings in the radio/MM!.
A WARNING
Lack of attent ion can cause collisions, other
accidents and ser ious personal injuries. The
braking guard is an assist system and cannot
prevent a coll is ion by itself. The dr iver must
always intervene. The driver is always respon
sib le for braking at the correct time.
- Always pay close attent ion to traffic, even
when the braking guard is switched on. Be
ready to intervene and be ready to take com
plete control whenever necessary. Always
keep the safe and legal distance between
your vehicle and vehicles up ahead.
- Braking guard works within limits and will
not respond outside the system limits, for
examp le when approaching a stopped vehi
cle or stationary obstacle (end of a traffic
jam or vehicle that has broken down in traf
fic).
- Always remember that the radar sensor for
the braking guard works only w ith in defined
detection and range limits that may prevent
the proper detection of other vehicles.
- The radar sensor's function and range can
be reduced by rain, snow and heavy spray.
Moving vehicles up ahead may not be
-
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Audi side assist Side assist
Description
Applies to vehicles: with Audi side assist
Fig. 101 Se nsor detection range
Fig. 1 02 Display o n the exterio r m irro r
Side assist helps you monitor your blind spot and
traffic behind your veh icle . With in the limits of
the system, it wa rns you about vehicles that are
coming closer or that are traveling w ith you with
i n sensor range
(D c::, fig. 101 : if a lane change is
classified as crit ical , the disp lay @ in the exter io r
mirror
¢ fig. 102 tu rns on.
The display i n the left exterior mirror provides as
sistance when making a lane cha nge to the left,
while the d isp lay in the right exterio r mir ror pro
vides assistance whe n mak ing a lane change to
the r ight .
Information stag e
As long as you do not activate the turn signal,
side assist
informs you about ve hicl es that a re
detected and class ified as crit ica l. The display in
the respective mirror tu rns on, but is dim.
Aud i side assist
The display remains d im intentionally in the in
formation stage so that your view toward the
front is not d isturbed .
Warning sta ge
If you activ ate the turn s ignal, s ide ass ist warns
you about vehicles that are detected a nd classi
fied as critica l. The d isplay in the respective mir
ror blinks brightly . If this happens, check traffic
by g lancing in the rearview mirror and over your
shoulder
c::, .&. in General information on
page 98.
{!) Tips
- Yo u can adjust the brightness of the display
@ c:;, page 99 .
97
Audi side assist
General information
App lies to veh icles: w ith Audi side assis t
®
@
©
Fig. 103 Driving situations
AU Df
Fig. 104 Rear of th e ve hicle: pos it io n of t he sensors
Side assist functions at speeds above approx i
mately 19 mph (30 km/h).
@ Vehicles that are approaching
In certain cases, a vehicle will be classified as
critical for a lane change even if it is still some
what far away. The faste r a vehicle approaches,
the sooner t he d isplay in the exter io r mirro r will
turn on.
@ Vehicles traveling with you
Vehicles traveling w ith you are indicated in the
exterior mirror if they are classified as critical for
a lane change. All vehicles detected by side assist
98
are indicated by the time they enter your "blind
spot", at the latest.
© Vehicles left behind
If you slowly pass a veh icle that side assist has
detected (the difference in speed between the ve
hicle and your vehicle is less than 9 mph (1 S km/
h)), the display in the exterior mirror turns on as
soon as the vehicle enters your blind spot.
T he display will not turn on if you quickly pass a
vehicle that side ass ist has detected (the differ
ence in speed between the vehicle and your vehi
cle is greater than 9 mph (15 km/h)).
Functional limitations
The radar senso rs are designed to detect the left
and right adjacent lanes when the road lanes are
the normal width. In certain situations, the dis
play in the exterior mirror may turn on even
though there is no vehicle located in the area that
i s cr itical for a lane change. For example:
- if the lanes are narrow or if your are dr iving on
the edge of your lane. If thi s is the case, the
system may have detected the vehicle in anoth
er lane that is
not adjacent to your current lane.
- if yo u are driving through a c urve . Side assist
may react to a vehicle that is one lane over from
the adjacent lane.
- if side assist reacts to other objects (such as
high or disp laced guard rails).
- In poor weather conditions . The side assist
functions are limited.
Do not cover the radar senso rs~
fig. 104 with
stickers, deposits, bicycle wheels or other ob
jects, because this will affect the function . For in
format ion on cleaning, refer to~
page 181 .
_& WARNING
-Always pay attention to traffic and to the
area around your veh icle. Side assist cannot
replace a dr iver's attention. The driver alone
is always responsible for lane changes and
sim ilar driv ing maneuvers .
- Improper reliance on the side assist system
can cause collisions and serious personal in-
-
Jury: ~
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-Never rely only on side assist when chang
ing lanes.
- Always check rear view mirrors to make
sure that it is safe to change lanes.
- Side assist cannot detect all vehicles under
all conditions- danger of accident!
- Please note that side assist indicates there
are approaching vehicles, or vehicles in your
blind spot, only after your vehicle has
reached a driving speed of at least 19 mph
(30 km/h).
- In certain situations, the system may not function or its function may be limited. For
example:
- if vehicles are approaching or being left
behind very quickly. The display may not
turn on in time.
- in poor weather conditions such as heavy
rain, snow or heavy mist.
- on very wide lanes, in tight curves or if
there is a rise in the road surface. Vehicles
in the adjacent lane may not be detected
because they are outside of the sensor
range.
(D Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. This can affect the system. Have
your authorized Audi dealer or authorized
Audi Service Facility check their function.
(!j) Tips
- If the window glass in the driver's door or
front passenger's door has been tinted, the
display in the exterior mirror may be misin
terpreted.
- For Declaration of Compliance to United
States FCC and Industry Canada regulations
¢ page 239.
Audi side assist
Activating and deactivating
App lies to vehic les : wi th Audi s ide ass ist
Fig. 105 Driver 's door : Side ass ist button
" Press the button ¢ A in General information
on page 98 to switch the system on/off. The
LED in the button turns on when side assist is
switched on .
Adjusting the display brightness
App lies to vehicles: wi th Audi s ide ass ist
The signal brightness can be set in the radio or
MM!*.
.,. Select: !CARI function button> Audi side assist.
.,. Select: !CARI function button> Car systems*
control button > Driver assist> Audi side as
sist.
The display brightness adjusts automatically to
the brightness of the surroundings, both in the information and in the warning stage . In very
dark or very bright surroundings, the display is al
ready set to the minimum or maximum level by
the automatic adjustment. In such cases, you
may notice no change when adjusting the bright
ness, or the change may only be noticeable once
the surroundings change.
Adjust the brightness to a level where the display
in the information stage will not disrupt your
view forward. If you change the brightness, the display in the exterior mirror will briefly show the
brightness level in the information stage. The
brightness of the warning stage is linked to the
brightness in the information stage and is adjust
ed along with the information stage adjustment . ..,_
99
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shared, please see your contract with the
wireless telecommunications provider and the
"About Aud i connect" tab in your vehicle's
MMI*:
IMENU I button> Audi connect > About
Audi connect .
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of skid
ding and loss of vehicle control. It works only
when the engine is running. ESC detects certain
d ifficu lt driving situations, including when the ve
hicle is beginn ing to spin (yaw) out of control and
helps you to get the vehicle back under control by
selectively braking the whee ls, and/or reducing
engine power and prov iding steer ing ass istance
to help hold the vehicle on the driver's intended
course. The indicator light
Bl in the instrument
cluster blinks when ESC is taking action to help
you control the veh icle.
ESC has limitations.
It is important to remember
that ESC cannot overcome the laws of physics. It
will not always be able to help out under all con
ditions 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 frict ion of the road surface . Whe n
there is a section of dry road that is suddenly cov
ered with water, slush or snow, ESC cannot per
form the same way it wou ld on the dry surface. If
the vehicle hydroplanes (rides on a cushion of wa
ter instead of the road surface), ESC will not be
ab le to he lp you steer the vehicle because contact
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. Whe n
tow ing a trailer, ESC is not able to help you regain
con trol as it wou ld if you were no t towing a trail
er .
A lways adjust your speed and dr iving sty le to
road, traffic and weather conditions. ESC cannot
override the vehicle's physical limits, increase the
Smart Technology
available traction, or keep a vehicle on the road i f
road departure is a result of driver inattention.
Instead, ESC improves the possibility of keeping
the vehicle under control and on the road dur ing
extreme maneuvers by using the driver's steering
inputs to help keep the vehicle go ing in the in
tended direction. If you are traveling at a speed
that causes you to run off the road before ESC
can prov ide any assistance, you may not expe ri
ence the benefits of ESC.
ESC is switched on all the time . In certain situa
t ions when you need less traction, you can switch
off ASR by pressing the button
[ru ~ page 170,
fig. 152 or ~page 170, fig . 153. Be sure to
switch ASR on again when you no longer need
less traction.
T he following systems are integrated in the ESC:
Anti-lock braking system (ABS)
ABS prevents the wheels from locking up when braking. The vehicle can still be steered even dur
i ng hard braki ng. Apply steady pressure to the
brake pedal. Do not pump the pedal. A pulsing in
the brake pedal indicates that the system is he lp
ing you to brake the vehicle.
Brake assist system
The brake ass ist system can decrease braking dis
tance . It increases braking power when the driver
presses the brake peda l quickly in emergency sit
u at ions. You must press and hold the brake pedal
until t he situat ion is over. In vehicles with adap
tive cruise control*, the brake assist system is
more sensitive if the distance detected to the ve
hicle ahead is too sma ll.
Anti-slip regulation (ASR)
ASR red uces eng ine power when the drive wheels
begin to spin and adapts the force to the road
conditions. This makes it easier to start, acce le r
ate and drive up hills.
Electronic differential lock (EDL)
T he EDL brakes whee ls that are spinning and
transfers the drive power to the other wheels.
T his function is available up to about 60 mph
(100 km/h).
169
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Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
H ow are child restra int system anchors rela t-
ed to ch ild safety . . . . . . . . . . . . . . . . . . . . .
163
How many airbags does my vehicle have? . . 134
H ow sa fety be lt pretensioners work 12 6
I
Ignition
switch ing on/o ff.......... .... .. ......
7 1
Ignition key
Emergency unlocki ng . . . . . . . . . . . . . . . . . . 33
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . .
71
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 18
Malfunct ion . . . . . . . . . . . . . . . . . . . . . . . . . 22
Imba lance (w heels) . . . . . . . . . . . . . . . . . . . 204
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Important things to do before driving . . . . 111
Imp roperly wor n sa fety be lts. . . . . . . . . . . . 125
Indicator lights . . . . . . . . . . . . . . . . . . . . . . . . 13
A' b 1r ag system . . . . . . . . . . . . . . . . . . . . . . 138
Dynamic stee ring . . . . . . . . . . . . . . . . . . . . 17 4
P ASSENG ER AIR BAG OFF . . . . . . . . . . . . .
138
al so refer to War ning/ indica to r lig hts . . . . 1 3
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . . 155
Inflation pressure (tires) . . . . . . . . . . . . . . . 206
Instal ling the uppe r tethe r st rap on the an-
chor age . .. .. .... ............. .. .. .. .
166
10
Instruments ..... .... ... .. .. .. .. .. ... .
Adjust ing the lighting . . . . . . . . . . . . . . . . . 46
Instruments an d contro ls
General i llustration . . . . . . . . . . . . . . . . . . . . 8
I n ter ior lights
Fr ont . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 6
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Intermittent (windsh ield wipe rs) . . . . . . . . . 49
]
Jump -starting 228
J umpe r cables . . . . . . . . . . . . . . . . . . . . . . . . 229
K
Key ... .. .. .. .. .... .. .... ... .. .. .... .. 3 1
Battery rep lacement . . . . . . . . . . . . . . . . . . 32
C heck light . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Emergency key . . . . . . . . . . . . . . . . . . . . 31, 72
Index
Ignit ion/engine on/off . . . . . . . . . . . . . . . . . 71
Key rep lacement . . . . . . . . . . . . . . . . . . . . . 31
Mechan ica l key ... ... .. ..... ... .. .. 31 , 32
removing . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
unlocking/lock ing . . . . . . . . . . . . . . . . .
33, 35
Ki ck -down . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
K . b nee air ags . . . . . . . . . . . . . . . . . . . . . . . . . 142
D .. escriptron .. .. .. ... .......... .. .. . .
How they wor k ... ............. ..... . 142
143
Important sa fe ty instru ctions . . . . . . . . . . 144
L
Lane Change Assista nt
refer to side assis t . . . . . . . . . . . . . . . . . . . . 97
Lap timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Evaluating times . . . . . . . . . . . . . . . . . . . . .
28
p .
t· . ausrng ,ming . . . . . . . . . . . . . . . . . . . . . . . 27
Sta rt ing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
LATCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
163
Description . . . . . . . . . . . . . . . . . . . . . . . . . 164
In stalling a c hild restra int . . . . . . . . . . . . . 164
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Mounting and releasing the anchorage
hoo k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
164
Launc h Control Program . . . . . . . . . . . . . . . . 85
Leaving home
Left hand drive 44
45
Lifting jack .
. . . . . . . . . . . . . . . . . . . . . . . . . 221
Li ght
adaptive light . . . . . . . . . . . . . . . . . . . . . . . .
43
Coming/Leaving home . . . . . . . . . . . . . . . . . 44
Daytime runn ing lights . . . . . . . . . . . . .
43, 44
Exterior lighting . . . . . . . . . . . . . . . . . . . . . . 44
Interior/reading lights . . . . . . . . . . . . . . . . . 46
Low beam ... .. .. .. ... .. ... ..... .. .. . 43
Rea r fog lights . . . . . . . . . . . . . . . . . . . . . . . 43
Side marker lights . . . . . . . . . . . . . . . . . . . . 43
Trave l mode . . . . . . . . . . . . . . . . . . . . . . . . . 45
Light/rain sensor
Head lights . . . . . . . . . . . . . . . . . . . . . . . . . .
43
In termittent (w indshield w ipers) . . . . . . . . 49
Senso r defective . . . . . . . . . . . . . . . . . . . . . .
21
Light ing
Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
43
In terior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
245