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Audi adaptive cruise control and braking guard
Audi braking guard
Description
Applies to: ve hicles with Audi adaptive cruise co ntro l
Fig. 132 Instrument cluste r: approach warning
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 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 situat ion.
The system advises you of various situations:
- The
distance warning is g iven 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 g iven, it may only be pos
s ible to avo id a col lision by swerving or brak ing
sharp ly. Th e indicator light . will warn you
about the danger
¢fig. 132. You will also hear
an acoustic signal.
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: Acti
vated
will appear.
1> Th is is not ava ilab le in some coun tries.
-If a collision is imminent, the system wi ll first
provide an
acute warning by briefly and sharply
apply ing 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 comp lete decelerat ion shortly be
fore a collision
ll.
- 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 warn ing on or
off in the radio/MM!*
¢ page 116, Settings in the radio/MM!*.
A WARNING
-
Lack of attention can cause collisions, other
accidents and ser ious personal in juries. The
braking guard is an assist system and cannot
prevent a collision by itself. The driver must
always intervene. The driver is always respon
sible for braking at the correct tim e.
- Always pay close attention to traffic, even
when the braking guard is switched on. Be
ready to intervene and be ready to take
comp lete control whenever necessary. Al
ways keep the safe and legal distance be
tween your vehicle and vehicles up ahead .
- Braking guard works wit hin limits and will
not respond outside the system limits, for
examp le when approaching a stopped veh i
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 within defined
detection and range limits that may prevent
the proper detect ion 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
,.
115

Audi adaptive cruise control and braking guard
promptly detected or may not be detected
at all.
- Reflective surfaces including crash barriers
or tunnel entrances may impair the function
oftheradarsensor.
(D Tips
-You can cancel the braking that is initiated
by the system by braking yourself, by accel
erating noticeably or by swerving.
- Braking guard error messages
c:> page 116.
- Keep in mind that braking guard can brake
unexpectedly. Always secure any cargo or
objects that you are transporting to reduce
the risk of damage or injury.
Settings in the radio/MMI*
Applies to: vehicl es w ith Audi adaptive cruise control
.,. Select : ICARI function button> Audi braking
guard .
Or
.,. Select:
~I C~A~R~I function button > Car systems*
control button > Driver assist> Audi braking
guard .
System -
Switch braking guard On and Off. When
you switch the ignition on, the message
Braking
guard: Off
appears if the system is switched off .
Early warning -The distance and approach warn
ings in the display can be switched
On/Off .
(D Tips
-Your settings are automatically stored and
assigned to the remote control key being
used at the times the settings are made
r=;,page 33.
-If you restrict the ESC, the braking guard al
so switches itself off
c:> page 18 7.
- Switch braking guard
off when you are load
ing the vehicle onto a vehicle carrier, train,
ship or other type of transportation . This
can prevent undesired warnings from the
braking guard system.
Messages
Applies to: vehicles w ith Audi adaptive cruise contro l
Braking guard: Off
116
This driver message appears if the system is
turned
off via the radio/MM I*. Otherwise, if the
system is turned
off, the information appears ev
ery time shortly after the start of the trip.
The driver message also appears if the system is
not available due to a malfunction or if the ESC is
not switched on
c:> page 187. If this is the case,
the system will not provide warnings about a possible collision.
Braking guard: Activated
This driver message appears if sharp brake pres
sure was applied due to an acute warning.
•••
Three white dots appear if a setting cannot be se
lected with the operating lever . For example, this
happens if you want to raise/lower the speed
even though there was no previously saved
speed.
ACC: Sensor blocked
This message appears if the sensor view is ob
structed, for example by leaves, snow, heavy
spray or dirt. Clean the sensor
r=;, page 109,
fig. 122 .
ACC: Unavailable
The driver message appears if, for example, the
brake temperature is too high. The adaptive
cruise control is temporarily unavailable. A chime
sounds as a rem inder.
ACC: Not available
The driver message appears if there is a malfunc
tion. The adaptive cruise control turns off. A
chime sounds as a reminder. Have the system
checked by an authorized Audi dealer or author
ized Audi Service Facility.
Shift lever position!
The driver message appears if the selector lever
is shifted to the N position. The adaptive cruise
control is not available while in this position.
Stabilization control (ESC)
This message appears if the Electronic Stabiliza
tion Control (ESC) is taking action to stabilize the .,.

Audi side assist
-Improper reliance on the side assist system
can cause collisions and serious personal in
jury:
- 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.
(D 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
c::> page 2 79.
120
Activating and deactivating
Applies to : vehicles wit h Audi side ass ist
Fig. 137 D riv er's doo r: Side ass ist butto n
.,.. Press the button c::> &. in General information
on page 119
to switch the system on/off . The
LED in the button turns on when side assist is
switched on .
Adjusting the display brightness
Applies to: vehicles wit h Aud i side ass ist
The signal brightness can be set in the radio or
MMI* .
.,.. Select: I CAR I function button > Audi side assist.
Or
.,.. Select: I CAR I 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
already 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 . .,,.

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OFF light comes on and stays on all the time
whenever the ignition is switched on.
A WARNING
- If the PASSENGER AIR BAG OFF light does
not go out when an adult is sitting on the
front passenger seat after taking the steps described above, make sure the adult is
properly seated and restrained at one of the
rear seating positions.
- Have the airbag system inspected by your
authorized Audi dealer before transporting
anyone on the front passenger seat.
(0 Tips
If the weight-sensing mat in the front passen
ger seat detects an empty seat, the front air
bag on the passenger side will be turned off,
and
PASSENGER AIR BAG OFF will stay on.
Repair, care and disposal of the airbags
Parts of the airbag system are installed at many
different places on your Audi. Installing, remov
ing, servicing or repairing a part in an area of the
vehicle can damage a part of an airbag system and prevent that system from working properly in a collision.
There are some important things you have to know to make sure that the effectiveness of the
system will not be impaired and that discarded
components do not cause injury or pollute the
environment.
A WARNING
Improper care, servicing and repair proce
dures can increase the risk of personal injury
and death by preventing an airbag from de
ploying when needed or deploying an airbag
unexpectedly:
-
- Never cover, obstruct, or change the steer
ing wheel horn pad or airbag cover or the in
strument panel or modify them in any way.
- Never attach any objects such as cupholders
or telephone mountings to the surfaces cov
ering the airbag units.
Airbag system
-For cleaning the horn pad or instrument
panel, use only a soft, dry cloth or one mois
tened with plain water. Solvents or cleaners
could damage the airbag cover or change
the stiffness or strength of the material so
that the airbag cannot deploy and protect properly.
- Never repair, adjust, or change any parts of
the airbag system.
-All work on the steering wheel, instrument panel, front seats or electrical system (in
cluding the installation of audio equipment,
cellular telephones and CB radios, etc.) must be performed by a qualified technician
who has the training and special equipment
necessary.
- For any work on the airbag system, we
strongly recommend that you see your au
thorized Audi dealer or qualified workshop.
- Never modify the front bumper or parts of
the vehicle body.
- Always make sure that the side airbag can
inflate without interference:
- Never install seat covers or replacement
upholstery over the front seatbacks that
have not been specifically approved by
Audi.
- Never use additional seat cushions that
cover the areas where the side airbags in
flate.
- Damage to the original seat covers or to
the seam in the area of the side airbag
module must always be repaired immedi
ately by an authorized Audi dealer.
- The airbag system can be activated only
once. After an airbag has inflated, it must
be replaced by an authorized Audi dealer or
qualified technician who has the technical
information, training and special equipment
necessary.
- The airbag system can be deployed only
once. After an airbag has been deployed, it
must be replaced with new replacement
parts designed and approved especially for
your Audi model version. Replacement of complete airbag systems or airbag components must be performed by qualified work-
shops only. Make sure that any airbag
Ill-
161

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(D Note
Driving with an insufficient oil leve l is likely to
cause severe damage to the engine .
@ Tips
-The oil pressure warning display. is not
an indicator of the oil level. Do not rely on
it. Instead , check the oil level in your en
gine at regular intervals, preferably each
time you refuel, and always before going
on a long trip.
- If yo u have the impression your engine con
sumes excessive amounts of oil, we recom
men d that you cons ult an autho riz ed Au di
dealer to hav e the ca use of your conce rn
properly diagnosed. Keep in mind that the
a ccu ra te measurement of oil consump tion
r equi re s gre at care and m ay ta ke some
time. An a uthorized Audi de aler has instr uc
tions about how to measure oil consump
tion acc urately.
Checking the engine oil level
Read oil level
"' Park your vehicle so that it is hor izonta lly level.
"' Shu t the engine off when it is at operat ing tem-
perature.
"' Switch only the ignition back on .
"' Wai t approx. two mi nutes .
"' Se lect:
I CARI funct ion button > Oil lev el. Or
"' Se le ct:
ICARI f u n ct ion butto n> Car sy stem s*
contro l button > Servicing & checks > Oil level.
"' Read the oil level in the r adio or M MI* Disp lay.
Add engine oil if the ba r of the o il level indica
tor is near "Min"
¢ page 221.
The o il level needs to be c heck ed at reg ular i nter
va ls. The bes t times to do this are w henever you
refuel and pr io r to long trips .
D epending on t he way t he ve hicle is dr iven and
the operat ing cond itions, o il cons umption can be
up to a 1 /2 q uart per 600 m iles ( O.S li ter per
1,000 km) . Cons umption may be hig he r within
the first 3,000 miles (5,000 km).
Checking and Filling
{!) Tips
The oil leve l indicator in t he radio o r MMI*
D isp lay is only an i nfo rmation disp lay. If the
oi l level is too low, a minimum o il wa rning ap
pears in the instrument cl uster. Add oil
¢ page 221. If the hood has been o pened ,
t he cur rent oi l level is show n in the inst ru
ment clust er the n ext time t he igni tion is
swi tched o n.
Adding engine oil~
Fig. 197 En gin e co mpa rt m ent: cove r o n th e eng ine o il fill
e r neck
Befo re yo u check any thing in the engine compa rt
ment,
always read and heed all WARNINGS
¢ A in Working in the engine compartment on
page 217.
"' Shu t the eng ine off .
"' Unscrew the cap
9=;1: to the engine oil f illing
hole
¢ fig.197, ¢page 219, fig.196 .
"'Carefully top off with 0.5 quarts (0. 5 liters) of
the appropriate oil¢
page 219.
"' Check the oil level again after two minutes
~ page 221, Checking the engine oil level .
"'Top off th e oil, if nec essary.
"' Scr ew the cap ba ck on the fi lling hole.
_&. WARNING
- Whi le toppin g off , the o il mus t no t come in
con tact w ith ho t en gine parts -fir e hazard !
- Th e oi l filler c ap must b e pr oper ly sec ure d
t o p reve nt o il from being spraye d on t he ho t
e ngine an d exha ust system whe n the engi ne
-
is run ning -fi re hazard ! Ill>-
221

Check ing and F illing
- If your skin has come in contact with the en
gine oil, you must subsequently cleanse it
thoroughly .
@ Note
-Check the oil level using the radio or the
M MI *. If the message
Please reduce oil le v
el
appears, contact your authorized Aud i
dealer or other qualified workshop to have
excess oil extracted if necessary.
- Audi does not recommend the use of o il
add it iv es. They may damage the eng ine
and ad ve rs ely affect your N ew V ehicl e
Warranty .
@ For the sake of the environment
-Under no circumstances can the oil come in
contact with the sewage network o r the soil.
- Observe and follow legal regulations when
dispos ing of empty oil conta ine rs .
Changing the engine oil
We recommend tha t have your oil changed by an
authorized Audi dealer or a qualified service s ta
tion .
Befo re you check anyth ing in the eng ine compart
ment,
alwa ys read an d heed all WARNINGS ¢.&
in Working in the engine compartment on
page 217 .
The engine oil must be changed accord ing to the
intervals specif ied in your Warranty
& Mainte
nance booklet. This is very important because the
lubricat ing propert ies of o il d iminish gradually
during normal vehicle use .
Under some circumstances the eng ine o il should
be changed more frequently . Change oil more of
ten if you d rive mostly short distances, operate
the vehicle in dusty areas or under predominant ly
stop-and-go traffic cond it ions , or have yo ur vehi
cle where temperat ures remain below freezing
for extended periods.
Detergent addi tives in the oil will make fresh o il
loo k da rk afte r th e eng ine has been ru nning fo r a
short t ime. This is no rma l and is not a re ason to
change the oil more o ften than re commended.
222
Because of the p roblem of prope r disposa l, along
with the specia l tools and necessary expertise re
quired, we strongly recommend that yo u have
your oi l changed by an authori zed
Audi deale r or
a qual ified service station.
If you choo se to change you r oil yourself , please
note the fo llow ing important information:
A WARNING
To reduce the risk of persona l injury if you
must change the eng ine oil in your vehicle
yourself:
- Wea r eye protect ion.
- To reduce the r is k of burns from hot engine
oil, let the engine cool down to the touch.
-
- W hen removing the oil drain plug with your
fingers, stay as far away as possible. Always
keep your forearm pa rallel to the gro und to
he lp prevent hot oil from run ning down your
arm .
- Drain the oil into a container designed for
this purpose, one la rge enough to hold at
least the tota l amount of oi l in you r engine.
- Engine oil is poisonous. Keep it well out of
the reach of childre n.
- Continuous contact with used eng ine o il is
harmf ul to your skin . Always protect your
skin by washing oil off thoroughly with soap
a nd water .
@ Note
Never mix oil additives with your engine oil.
These additives can damage your engine and
adverse ly affect you r Audi Limi ted New Vehi
cle Warranty .
@ For the sake of the environment
-Before chang ing your oi l, first make sure
you know where you can properly dispose o f
the used oil.
- Always dispose of used e ngine o il pro perly .
Do not dump i t on garden soil, wooded
areas, into open streams o r down sewage
dr ains.
- Recycle used e ngine o il by tak ing it to a used
eng ine oil collect ion fac ility in yo ur area, o r
c ontact a servi ce st ation.

Checking and Filling
-Always follow the operating instructions
provided by the battery charger manufactur
er when charging your battery.
- Never charge a frozen battery . It may ex
plode because of gas trapped in the ice. Al
low a frozen battery to thaw out first.
- Do not reuse batteries which were frozen .
The battery housing may have cracked and
weakened when the battery froze .
- Charge the battery in a well ventilated area.
Keep away from open flame or electrical
spark . Do not smoke. Hydrogen gas generat
ed by the battery is explosive .
- To reduce the danger of explosion, never
connect or disconnect charger cables while
the charger is operating .
- Fast charging a battery is dangerous and should only be attempted by a competent
technician with the proper equipment .
- Battery acid that may spill during charging should be washed off with a solution of
warm water and baking soda to neutralize
the acid.
(D Note
Never use a fast charger as a booster to start
the engine. This will seriously damage sensi
tive electronic components, such as control
units , relays , radio, etc., as well as the battery
charger.
Battery replacement
The new battery must have the same specifica
tions and dimensions as the original equipment
battery.
Intelligent energy management in your vehicle is
responsible for distributing the electrical energy
throughout your vehicle
~ page 192. The intelli
gent energy management system will keep the
engine battery charged better then vehicles with
out this system. To mak e sure the additional
electrical energy is available once again after you
have changed the battery, we recommend that
you install batteries of the same type and manu facture only (the same as those installed at the
time your vehicle was delivered) . Specifications
228
are listed on the battery housing. Your author
ized dealer must cod e the battery in the energy
management system to enable you to use the en
ergy management functions correctly after re
placing the battery.
If it is not possible to use a battery of this type,
the new battery must have the same capacity,
voltage (12 volts), amperage, construction and plug sealing.
When installing the battery, make sure the igni
tion and all electrical consumers are turned off.
([) Note
- Make sure the ventilation hose on the side
of the battery is connected, otherwise
fumes or battery acid can leak out.
- Vehicles with the Start-Stop-System* are
equipped with a special cycle-proof AGM
battery. Installing a different type of bat
tery can cause problems in the vehicle elec
trical system. When replacing the vehicle battery, always install one with the same
specifications as the original battery.
@ For the sake of the environment
Because of the problem of proper disposal of
a battery, we recommend your authorized
Audi dealer change the battery for you. Bat
teries contain sulfuric acid and lead and must
always be disposed of properly in compliance
with all environmental regulations. Disposing
of vehicle batteries improperly is
very danger
ous to the environment.

Wheel s
® Mud and snow capability
"M/5" or "M+S" indicates the tire
is sui table for driving on mud and
snow.
& indicates a winter tire.
@ Composition of the tire cord
and materials
The number of plies indicates the
number of rubberized fabric lay
ers in the t ire. In general: the
more layers, the more weight a
tire can carry . Tire manufacturers
must also specify the materials
used in the tire. These include
steel, nylon, po lyester and other
materials.
@ Maximum permitted load
This number indicates the maxi
mum load in kilograms and
pounds that the tire can carry .
@Uniform tire quality grade
standards for treadwear,
traction and temperature resist ance
Treadwear, traction and tempera
ture ranges ¢
page 247.
@ Running direction
The arrows indicate the running
direction of unidirectional t ires .
You must always follow the speci
fied running direction
¢page 259.
232
@ Ma ximum permitted
inflation pressure
This number indicates the maxi
mum pressure to which a tire can
be inflated under normal operat
ing condit ions.
Glossary of tire and loading
terminology
Acces sory we ight
means the combined weight (in
excess of those standard items
which may be replaced) of auto matic transmission, power steer
ing, power brakes, power win
dows, power seats, radio, and
heater, to the extent that these
items are available as factory-in
stalled equipment (whether in
stalled or not) .
Aspect ratio
means the ratio of the height to
the width of the tire in percent .
Numbers of 55 or lower indicate a
low sidewall for improved steer
ing response and better overall
handling on dry pavement.
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the r im . ...