2018 AUDI A4 wheel

a co .... N ,....
N .... 0 0
3 co
Also see¢ page 146, Electronic stabilization
control (ESC) .
The all-wheel drive system dist ributes the d riving
power var iably to the front and rear axle. It works
together with selective whee l torque cont rol,
which activates when driving through curves
c:> page 146. With the sport differentia l*, power
d istribution to the rear wheels is variable and can
be adjusted using the dr ive select
c:> page 134.
The all wheel drive concept is designed for high
engine power. Your ve hicle is exceptionally pow­
erful and has excellent driving characterist ics
both under norma l dr iving condit ions and on
snow and ice . Always read and fo llow safety pre ­
cautions
c:> .&. .
Winter t ires
By us ing all wheel drive, yo ur vehicle has good
forward motion with standard tires in w inte r con­
d itions. However, using winter or all season tires
on
all four wheels in the winter is recommended ,
because this will improve the
braking effec t.
Snow chains
If there are snow chain laws, snow chains must
also be used on vehicles with all wheel drive
c:> page 350, Snow chains .
Replacing tire s
For vehicles with all whee l drive, only whee ls with
the same ro lling circumference s hou ld be used.
Avoid using tires w ith different tread depths
c:> page 341, New tires or wheels.
Offroad vehicle?
The ground clearance is too low on some mode ls
to drive on rough terrain. Therefore, avoid off­ road trips.
A WARNING
-Also, in vehicles with a ll w heel d rive, adapt
your dr iv ing style to the current road and
t raff ic conditions . Do not let the increased
safety provided tempt you into tak ing risks,
because t his increases the r is k of an acci­
dent .
Intellig ent Technology
- The braking ab ility o f your vehicle is limited
to the traction of the wheels. In this way, it
is not different from a two wheel drive vehi­
cle . Do not be tempted to accelerate to a
h igh speed whe n the road is sli ppery, be­
cause this i ncreases the risk of an accident.
- No te that o n wet streets, the fron t wheels
can "hydrop la ne" if dr iv ing at speeds that
are too high. Unlik e front wheel d rive
veh icles, the engine does not rev h ig her sud­
denly when the vehicle begins hydrop laning.
F orthisre ason,ad aptyo urspeedto the
road conditions to re duce the risk of an acci­
dent .
Energy management
The starting ability is optimized
The energy management system manages the
electrical energy distribution and optimizes the
availability of electrical energy for starting the
engine .
When a vehicle with a conventional energy sys­
tem is not drive n for a long time, the ve hicle bat­
te ry is d rained by equipment (for example, t he
immob ilizer). In certa in circ ums tances , there
c ou ld m ay no t be eno ugh e nergy to start the en­
gine.
You r vehicle is equi pped with an in tell igent ener­
gy manageme nt system fo r dist ributing electrici­
ty. This sig nifican tly improves the start ing ability
and in cre ase s t he vehicle battery life.
The ene rgy ma nagement system Is made up of
battery diagnosi s, idling current management ,
and dynamic energy management .
Battery diagnosis
The battery diagnos is determines the vehicle bat­
te ry c harge level. The sensors determine the bat ­
te ry vo ltage, the batte ry cu rrent, and the batte ry
temperat ure. The current c ha rge level and t he
perfo rman ce of the vehicle battery a re de ter-
mine d base d on this.
..,.
151

Multi Media Interface
Traffic safety information
Audi recommends performing certain Infotain­
ment system functions, such as entering a desti­
nation, only when the vehicle is stationary . Al ­
ways be prepared to stop operating the Infotain­
ment system in the interest of your safety and
the safety of other road users.
A WARNING
Only use the Infotainment system when traf­
fic conditions permit and always in a way that
allows you to maintain complete control over
your vehicle.
@ Tips
Certain functions are not available while driv­
ing .
Introduction
The Multi Media Interface, or MMI for short,
combin es various systems for communication,
navigation* and entertainment in your Audi. You
can operate the MMI using the MMI control pan­
el, the multifunction steering wheel or the voice
recognition system*.
Applies to: vehicles with automatic transmiss ion:
Fig. 157 MMI contro l panel· integrated shortc ut keys
Multi Media Interface
Applies to: ve hicles w ith manua l transmission:
Fig . 158 MMI cont rol p anel
-separa te shortcut keys o n
t he ce nte r conso le
MM I control panel overview
(D Control knob , if needed with joy-
stick funct ion* . .. .. .... .. .... . 157 ,160
@ MMI touch control pad* ....... .
@
@
®
Left control button ........... .
Right control button .......... .
Buttons for opening menus
directly .. ... .. .. ............ .
® IMENUI button . .. .. .... ...... .
0
®
I BA CKI button
Shortcut keys
@ Tips
The shortcut keys @~ fig. 158 for the MMI
control panel (manual transmission) are on
the center console .
MMI On/Off knob with
joystick function
Operating
Fig. 159 MMI On/O ff knob with jo ystick f unction
158
157
1 5 7
15 7
157
157
162
155

Voice recognition system
Voice recognition system Operating
Applies to: vehicles with vo ice recognition system
You con operate many Infotainment functions
conveniently by speaking.
Req uirements: the ignition and the MM I must be
sw itched
on~ page 155 , there must not be any
phone call in progress and the parking system
m ust not be active .
.. Switching on: press the~ button @
¢
page 15, fig. 11 or ¢ page 16, fig . 13 briefly
on the multifunction steering wheel and say
the des ired command after the
Beep .
.. Switching off : press and hold the~ button.
Or: press the l2l button.
.,. Pause : say the command Pause . To resume,
press
the~ button .
.,. Correcting : say the command Correction . Or :
simp ly say a new comma nd during an an­
no uncement ¢
page 248.
Input assistance
The system gu ides you throug h the input with
visual and audio feedbac k.
- Visual input as sistance : after switching on
vo ice recognit ion, a display with a selection of
poss ible commands appears . This command
display can be sw itched on o r off. Se lect:
IMENU I button> Set tings > left co ntrol button
> MMI setting s> Speech di alog system .
- Audio input a ssistanc e:
to have the poss ible
commands read, turn t he voice recogn ition sys­
tem on and say
Help.
For the system to understand you:
Speak clearly and dist inctly at a normal volume .
Speak louder when d riving faster .
Emphasize the words in the commands even ly
and do not leave long pauses .
Close the doors, the windows and the sunroof* to reduce background noise . Make sure that passen­
gers are not speaking when you are giving a voice
command .
168
Do not direct the air vents toward the hands -free
microp hone, which is on the roof headliner near
the front interior lights .
Only use the system from the dr iver's seat be­
ca use the hands -free microphone is directed to ­
ward that seat .
Additional settings
See¢ page 248, Speech dialog system .
.8, WARNING
-Dire ct yo ur full attention to dr iv ing . As the
driver, you have complete responsibility fo r
safety in traffic. Only use the functions in
such a way that yo u always maintain com­
plete contro l over your vehicle in a ll traffic
situations .
- Do not use the voice recognition system in
emergencies beca use your voice may change
in stressful s ituations. It may take longer to
dia l the number or the system may not be
ab le to dial it at all. Dial the emergency
number manually.
(D Tips
- The d ialog pauses when there is an incom­
ing phone call and will continue if you ig­
nore the call. The dia log ends if you answer
the ca ll.
- You can select an item in the list us ing ei­
ther the vo ice recognit ion system or the
cont rol knob.
Command overview
information
Applies to: vehicles with voice recognition system
The following overv iews des cribe the commands
that can be used to operate the MMI using the
voice recognition system.
Alte rnative commands are separated using a"/ ",
for example say:
Telephone / (or) Navigation /
(or) Radio.
Sequences of commands used to perform an a c­
tion are identified w ith a
"> ", fo r example say:
Enter addre ss> (t hen) Enter country /state . ..,.

Voice recognition system
The parking aid as well as the Audi voice recogni­
tion system must not b e active.
A cell phone must be connected to the MMI with
the
Handsfree profile ~ page 175.
The cell phone being connected must have voice
control that can be controlled externally.
~ Switching on: press and hold the l2.;J button on
the multifunction steering wheel* and say the
desired command after the external speech di­
alog begins.
~ Continuing/resuming the dialog: the system
remains ready to use for a short time after end­
ing the dialog. You can start a new external dia­
log during this time. Press the
!'1•1 button if
needed, and say a new command.
Or: select
and confirm
Resume on the MMI control panel.
~ Switching off: press and hold the l2.;J button .
Or: select and confirm Cancel on the MMI con ­
trol panel.
(D Tips
- There are no voice guidance* prompts when
a dialog is active .
-This function depends on the cell phone
used . You can obtain more information
from your cell phone service provider or
from your cell phone user guide .
-AUDI AG simply provides access to control
your cell phone with voice operation and does not take any responsibility for the con­
tents and commands within the external
voice control.
174

Navigation
Voice guidance volume : you can adjust the vo l­
ume d uring voice guidance using the On/Off knob
¢ page 155 Yo u can also f ind additional informa­
tion
u nder¢ page 253.
Map
Operating the map
A pp lies to : ve hicles w ith navigat ion system
F ig . 196 Exa mple: 30 map with the cross hair s sw itche d off
•IN
r@
S Flo 1Jtro 11 St
F ig . 197 Exa mple: stan dard map w it h the c ross ha ir s
sw itc hed on
• Press the I N AV /MAPI button repeated ly until
the map is
d isp layed ¢ fig. 196.
Zooming in /out on the map
- T urn the co ntr ol knob to the left or to the right.
A lte rnatively, you can also zoom in/out on the
map using the MM I touch contro l pad*
¢ page 160, if the crosshairs are sw itched on.
O r: turn the left t humbwheel on the mu ltifunc­
tion steer ing
whee l*¢ page 13 .
Turning the crosshairs on/off
- Switching th e crosshairs on :
press t he con trol
kno b in t he map
view ¢ fig. 196.
-Switching the crosshairs off : press the I BACKI
button.
1l Only app lies to vehi cles w it ho ut camer a-based speed limit
dis play .
214
When the cro sshairs are swit ched off ¢ fig . 196:
(D Direction . Fo r additional info rmat io n, see
¢page 216.
@ The distance to the dest inat ion includes the
ca lculated arrival time .
@ When th e trailer mode funct ion is sw itch ed
on~, th e cor responding symbol is displayed
next to the arr ival time.
© Sca le: turn the control knob to the left or
right to decrease or increase the scale . When
t h e
Automatic zoom function is sw itched on
~, an "A" for "Automat ic" is d isplayed in the
magnifying glass.
® Alt itude
@ Vehicle position
(?) Ro ute info rma tion: various informa tion will
be displayed dur ing rou te g uidance ( fo r ex­
amp le, the upcoming m aneuver includi ng
ca lculated distance and street names o r haz­
ard information *). The display a lso provides
traff ic information or po ints of interest on
t h e cur rent route.
@ Road curre ntly being d riven on
When the crossha irs are switched on ¢ fig. 197 :
® The crosshairs : move the crosshairs in the de -
s ired direct ion and set a point on the map us­
ing t he MMI touch control pad* or the con­
trol knob . When the crosshairs are turned
off, the road be ing current ly dr iven on is
shown .
@ Speed limi t display 1l: dis p lay of the ma xi­
mum pe rm itted speed on the expressways
and highways.
@ E nte rtainmen t sliding menu*: only available
whe n media is active. More info rmation can
be fo und under
¢ page 160 .
@ Additional information on the cross hairs po­
s it ion: if you move the crosshairs to a loca­
t ion on the map, available information for
t h e cur rent crosshairs position is displayed .
P ress t he control knob to ope n destinat ion
de tails or to s tart rou te g uidance .

.,. Observe all traffic laws, rules of the road and
speed limits and plain common sense .
.. ALWAYS adjust your speed to road, traffic and
weather conditions.
.. Take frequent breaks on long trips. Do not drive
for more than two hours at a stretch.
.. Do NOT drive when you are tired, under pres­
sure or when you are st ressed.
& WARNING
Impai red dr iv ing safe ty inc reases the risk of
ser ious personal inju ry and death whenever a
vehicle is being used.
Correct passenger
seating positions
Proper seating position for the driver
The proper driver seating position is important
for safe, relaxed driving.
F ig . 2 24 Correct seating posit ion
F or your own safety and to reduce the risk of in­
jury in the event of an accident, we recommend
that you adjust the driver's seat to the following position:
.. Adjust the dr iver's seat so that you can easily
push the pedals all the way to the floor while
keeping your knee(s) slight ly
bent ¢&_ .
.. Adjust the angle of the seatback so that it is in
an upright position so that your back comes in
full contact w ith it when you drive .
.,. Adjust the steering wheel so that there is a dis­
tance of at least 10 in ches (25 cm) between the
steering wheel and you r breast
bone ¢ fig. 224.
If not possib le, see your aut horized Aud i dea le r
about adaptive eq uipment .
Driving safety
.. Adjust the steering wheel so that the steering
wheel and airbag cover points at your chest and
not at yo ur face .
.. Grasp the top of the steering wheel with your
elbow(s) slightly bent .
.,. Applies to: adjustable head restraints: Adjust
the head restraint so the upper edge is as even as poss ible with the top of your head. If that is
not possib le, try to adjust the head rest raint so
t ha t it is as close to this pos ition as poss ible .
.. Fasten and wear safety belts correctly
¢page 266.
.. Always keep both feet in the footwell so that
you are in contro l of the veh icle at a ll times.
F or detailed information on how to adj ust the
drive r's seat, see
¢page 65 .
A WARNING
-
Drivers who are unbelted, out of position or
too close to the airbag can be seriously in­
jured by an airbag as it unfolds. To help re­ d uce the risk of serious personal injury:
- Always ad just the driver's seat and the
steer ing whee l so that there are at least
10 inc hes (25 cm) between you r breastbone
and the steering wheel.
- Always ad just the driver's seat and the
steer ing wheel so that there are at least
4 inches (10 cm) between the knees a nd the
lowe r part of the instrument panel.
- Always hold the steering w heel on the out­
s ide of the steering wheel r im with yo ur
hands at the 9 o 'clock and 3 o'clo ck posi ­
tions to help reduce the risk of personal in­
jury if the driver's airbag inflates.
- Never hold the stee ring wheel at the
12 o' clock position o r wi th yo ur hands at
other positions i nside the steer ing whee l
rim or on the steering wheel hub. Holding
the steering wheel the wrong way can cause
serio us injuries to the hands, arms and head
if the dr iver's airbag dep loys.
- Pointing the steering wheel toward your
face decreases the ability of the supplemen­
tal driver's airbag to protect you in a coll i·
.,
sion. ..,
255

Safety belts
Why use safety belts?
Frontal collisions and the law of physics
Frontal crashes create very strong forces for peo­
ple riding in vehicles .
Fig. 228 Unbelted occupants in a veh icle headi ng fo r a wall
Fig. 229 T he vehicle c rashes into the wall
The physical principles are simple. Both the vehi­
cle and the passengers possess energy which var­ ies w ith vehicle speed and body weight . Engi­
neers call this energy "k inetic energy."
The higher the speed of the vehicle and the
greater the vehicle's weight, the more energy
that has to be "absorbed" in the crash.
Vehicle speed is the most significant factor .
If
the speed doubles from 15 to 30 mph (25 to 50
km/h), the energy increases 4 times!
Because the passengers of this vehicle are not us­
ing safety
belts ~ fig. 228, they will keep moving
at the same speed the vehicle was moving just
before the crash, unti l something stops them -
here, the
wall ~ fig. 229.
The same principles apply to people sitting in a
vehicle that is involved in a frontal collision . Even
at c ity speeds of 20 to 30 mph (30 to 50 km/h),
the forces acting on the body can reach one ton
264 (2,000 lbs.
or 1,000 kg) or more . At greater
speeds, these forces are even higher.
People who do not use safety belts are also not
attached to their vehicle. In a frontal collision
they will also keep moving forward at the speed
their vehicle was travelling just before the crash.
Of course, the laws of physics don't just apply to
frontal collisions, they determine what happens in all kinds of accidents and collisions .
What happens to occupants not wearing
safety belts?
In crashes unbelted occupants cannot stop
themselves from flying forward and being in­
jured or killed . Always wear your safety belts!
Fig. 230 A drive r not wea ring a safety belt is vio len tly
t hrow n fo rward
Fig. 231 A rear passe nge r not wear ing a sa fety belt will f ly
forward an d str ike the driver
Unbelted occupants are not able to res ist the tre­
mendous forces of impact by holding tight or
bracing themselves. Without the benefit of safe­
ty restraint systems, the unrestra ined occupant
will slam violently into the steering wheel, in­
strument panel, windshield, or whatever e lse is
in the
way ~ fig. 230. T his impact with the vehi ­
cle interior has all the energy they had just be-
fore the crash.
liJJ,-

a co .... N ,....
N .... 0 0
3 co
Airbag system
Important information
Importance of wearing safety belts and
sitting properly
Airbags are only supplemental restraints. For
airbags to do their job, occupants must always
properly wear their safety belts and be in a prop­ er seating position.
For your safety and the safety of your passen­
gers, before driving off, always :
.,. Adjust the driver's seat and steering wheel
properly
9 page 255,
.,. Adjust the front passenger's seat properly
¢page 256,
.,. Wear safety belts properly¢ page 265,
.,. Always properly use the proper child restraint
to protect children ¢
page 295.
In a collision, airbags must inflate within the
blink of an eye and with considerable force. The
supplemental airbags can cause injuries if the
driver or the front seat passenger is not seated
properly. Therefore in order to help the airbag to
do its job, it is important, both as a driver and as
a passenger to sit properly at all times.
By keeping room between your body and the
steering wheel and the front of the passenger
compartment, the airbag can inflate fully and
completely and provide supplemental protection in certain frontal
collisions ¢ page 255, Correct
passenger seating positions .
For details on the
operation of the seat adjustment controls
¢page 65.
It's especially important that children are proper­
ly restrained
¢page 295.
There is a lot that the driver and the passengers
can and must do to help the individual safety fea­
tures installed in your Audi work together as a
system.
Proper seating position is important so that the
front airbag on the driver side can do its job. If
you have a physical impairment or condition that prevents you from sitting properly on the driver
seat with the safety belt properly fastened and
Airbag system
reaching the pedals, or if you have concerns with
regard to the function or operation of the Ad­
vanced Airbag System, please contact your au­
thori zed Audi dealer or qualified workshop, or
call Audi Customer Relations at 1-800-822-2834
for possible modifications to your vehicle.
When the airbag system deploys, a gas generator
will fill the airbags, break open the padded cov­ ers, and inflate between the steering wheel and
the driver and between the instrument panel and
the front passenger. The airbags will deflate im­
mediately after deployment so that the front oc­
cupants can see through the windshield again
without interruption.
All of this takes place in the blink of an eye, so
fast that many people don't even realize that the airbags have deployed. The airbags also inflate
with a great deal of force and nothing should be
in their way when they deploy. Front airbags in
combination with properly worn safety belts slow
down and limit the occupant's forward move­
ment . Together they help to prevent the driver
and front seat passenger from hitting parts of
the inside of the vehicle while reducing the forces
acting on the occupant during the crash . In this
way they help to reduce the risk of injury to the
head and upper body in the crash. Airbags do not
protect the arms or the lower parts of the body.
Both front airbags will not inflate in all frontal
collisions . The triggering of the airbag system de­
pends on the vehicle deceleration rate caused by
the collision and registered by the electronic con­
trol unit . If this rate is below the reference value
programmed into the control unit, the airbags
will not be triggered, even though the car may be badly damaged as a result of the collision. Vehi­
cle damage, repair costs or even the lack of vehi­
cle damage is not necessarily an indication of
whether an airbag should inflate or not.
Since the circumstances will vary considerably between one collision and another, it is not possi­
ble to define a range of vehicle speeds that will
cover every possible kind and angle of impact
that will always trigger the airbags . Important
factors include, for example, the nature (hard or
soft) of the object which the car hits, the angle of
impact, vehicle speed , etc. The front airbags will
II>
271