2018 AUDI A4 wheel

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(D Note
The radar sensors can be displaced by impacts
or damage to the bumper, wheel housing and
underbody. Pre sense rear can be impaired by
this. Have an authorized Audi dealer or au­
thorized Audi Service Facility check their func­
tion .
(D Tips
-The pre sense rear functions switch off
when towing a trailer .
- The pre sense rear functions may also
switch off if there is a malfunction in the
side assist* system.
Audi pre sense city
Description
Applies to: vehicles with Audi pre sense city
Within the limits of the system, pre sense city
can warn you of impending collisions with
vehicles and pedestrians and initiate the applica­
ble braking maneuver if needed. Pre sense city is
active at speeds of approximately 6 mph (10 km/ h) and higher.
A pedestrian warning can occur at speeds up to
50 mph (85 km/h), and vehicle warnings can oc­
cur at speeds up to 155 mph (250 km/h) . A pre
sense city braking maneuver is poss ible at speeds
up to 50 mph (85 km/h).
Warnings
Applies to: vehicles with Audi pre sense city
The system recognizes various dangerous s itua­
tions. The
early warning occurs if:
- a vehicle driving ahead brakes suddenly,
- your own vehicle approaches a significantly
slower vehicle or stationary veh icle in the direc­
t ion of travel.
- a pedestrian is standing in the lane or is moving
i nto the lane .
When this warning occurs, it may only be possi­ ble to avoid a collision by swerving or braking
strongly. The message
Audi pre sense .
Assistance systems
¢page 121, fig. 122 and a warning tone will
warn you about the danger.
Additionally, a jerk on the brakes may occur as an
acute warning when there is an imp ending colli­
sion . If you do not react to the acute warning, pre
sense city can brake to the point of complete de­
celeration within the limits of the system . T his
reduces the vehicle speed in the event of a colli­
sion. The message
Audi pre sense . also ap­
pears.
The following functions are triggered in conjunc­
tion with pre sense basic/rear:
- Reversible tensioning of the front safety belts.
- Closing the windows and sunroof* .
- Inflating the side bolsters* on the seat back-
rest.
Audi drive select*: the function is not act ive de­
pending on the mode selected.
A WARNING
- Pre sense city cannot overcome the laws of
physics.
It is a system designed to assist and
it cannot prevent a coll is ion in every circum­
stance. The driver must always intervene.
The driver is always responsible for braking
at the correct time. Do not let the increased
safety provided tempt you into taking risks.
This could increase your risk of a collision.
- The system can dep loy incorrectly due to
system-specific limits.
- To reduce the risk of an accident, please
note that the camera does not always detect
every object.
- Pre sense city does not react to anima ls,
crossing or oncoming vehicles, objects such
as bars, railings or railcars, and objects that
are difficult to
detect ¢ A in General infor­
mation on page 109 .
-In trailer mode, the braking behavior of the
tra iler can be d ifferent than usual during au­
tomatic braking.
A WARNING
-Pre sense city may be restricted or not availa-
ble in the following example situations:
- in heavy fog, ra in, spray or snow
~
123

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This message appears if the ESC is restricted or
switched off, for examp le .
Ill Aud i pre sen se : curren tly re stri cted . See
o wner 's manu al
This message appears when there is a temporary
fa ilu re in a subsystem, such as the ESC. If th is
message appea rs repeated ly, dr ive to an a uthor­
ized A udi dealer or authorized Audi Service Fac ili­
ty to have the malfunction corrected.
Ill Aud i pre sen se: e merg enc y braking syste m
off
This message appears if the pre sense functions
are switched off through the Infotainment sys­
tem or if the system is not ready .
Audi active lane assist
Description
Applies to: ve hicles wit h Aud i act ive lane ass ist
Active lane assist (lane departure warning) de­
tects lane marker lines within the limits 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 wa rn you w it h corre ct ive steer ing .
You can overr ide th is steering at any time . If yo u
pass over a line, the steer ing whee l wi ll vibrate
lightly. In order for this warning vibration to oc ­
cur, it must first be switched on in the Infotain­
ment system. Active lane assist is ready for oper­
ation when the lane marker line is detected on at least one side of the vehicle.
The system is designed for driving on express ­
ways and highways and therefore only activates at speeds above approximately 40 mph (6S km/
h).
Applies to: vehicles with side assist: if you acti­
vate a turn signal when active lane assist is ready
and it classif ies a lane change as critical because
of vehicles traveling alongside you or approach­ ing you, there w ill be not iceable correct ive steer­
i ng shortly before you leave the lane . This will at­
tempt to keep your veh icle in the la ne.
Applies to: vehicles w ithout s ide ass ist : the ready
system does not warn you if you activate a turn
A ss ista nce sys te m s
signal before crossing the lane marker line. In
t h is case, it assumes that you are changing lanes
intentionally .
Applies to: vehicles wi th adap tive c ruise contro l:
there is no corrective steering or warnings if the
system recognizes a distinct passing maneuver .
If the condit ions are met, traffic jam ass ist
switches on at speeds under approximately
40 mph (65 km/h)
qpage 116.
A WARNING
=
- The system warns the driver that the vehicle
is leaving the lane using corrective steering.
The driver is always responsible fo r keeping
the vehicle within the lane.
- The system can help you keep the vehicle in
the lane, but it does not drive by itself. Al­
ways keep your hands on the stee ring
wheel.
- Cor rective stee ring may not occur in certain
situations, such as during heavy b raking.
- There may be cases whe re the camera does
not recognize all lane marker lines. Cor rec­
tive steering can only take place on the s ide
of the vehicle where lane marker lines are
detected.
- Other road structu res or objects could poss i­
b ly be identified unintentionally as lane
marker lines . As a result, corrective steering
may be unexpected or may not occur.
- The camera view can be restricted, for ex­
ample by vehicles driving ahead or by rain,
snow, heavy spray or light shining into the
camera. Th is can result in active lane ass ist
not detecting the lane marker lines or de­
tect ing them incorrectly .
- In certain s ituations where visibility is low,
the vehicle may switch from an "early" to
"late" steering correct ion.
- Under certain condit ions such as ruts in the
road, an inclined roadway or crosswinds, the
correct ive steer ing alo ne may not be enough
to keep the vehicle in the middle of the lane .
- For safety reasons, act ive lane assist must
not be used when there are poor road and/
or weather conditions such as slippery roads, fog, gravel, heavy rain, snow and the
125

Assistance systems
potential for hydroplaning . Using active lane
assist under these conditions may increase
the risk of a crash.
Switching on /off
A pp lies to: vehicl es w ith Audi active lane assist
Fig. 123 Turn signal lever: button for act ive lane ass ist
F ig . 124 Windsh ie ld: camera window for act ive lane ass ist
~ Press the button to switch the system on and
off
¢ fig. 123. The indicator light in the instru­
ment cluster turns on or off.
126
Analog lnstru- Audi virtual Meaning on
ment cluster cockpit/head- the corre- up display* sponding side
Green line(s) Green line(s) Active lane as-
(left/right) (left/r ight) sist is activat-
-J -J ed and ready
to provide
warnings .
-Red line Active lane as-
(left/r ight)
sist warns you
·/ \-before leaving
a lane. In addi-
tion, the steer-
ing whee l vi-
brates lightly.
Yellow line(s) Gray
Li ne(s) Active lane as-
(left/right) (left/r ight) sist is activat-
·/ \-ed, but is not
ready to give
warning
If the system is switched on but is not ready to
provide wa rn ings, one of the following could be
the cause:
-There is no lane marker line .
-The relevant lane marker lines are not detected
(for example, markings in a construction zone
or because they are obstructed by snow, dirt,
wate r or lighting) .
-The vehicle speed is below the activation speed
of approximate ly 40 mph (65 km/h).
- The lane is too narrow or too wide .
- The curve is too narrow.
- The driver 's hands are not on the steering
wheel.
(D Tips
- Make sure the camera window ¢fig. 124 is
not covered by stickers or other objects. For
information on cleaning, see
¢ page 354.
- In certain markets: if the system is switched
on, it will switch on automatically each time
the ignition is switched on.

Display in the instrument cluster
App lies to: ve hicles with Audi active lane assist
Fig. 125 Instrument cluster (multi-color display): ac tive
lane ass ist is sw itched on and ready to provide warnings
Fig. 126 Instrument cl uster (monoc hrome display): active
lane ass ist is switched on
You can open up the Dr ive r assistance display for
the act ive lane assist using the multifunction
steer ing whee l buttons
c::> page 13.
An additional ind icator appears in the head-up
display*.
Multi-Color Display
Refer to¢ fig. 125
Driver assistance Meaning on the corre-
display in the in-sponding side
strument cluster
Green line(s) Active lane assist is acti -
(left or right) vated and ready to pro-
vide warnings.
Red line Active lane assist warns
(left or right) you before leav ing a lane.
In addition, the steering
whee l vibrates lightly.
Gray line(s) Active lane assist is acti-
(left or right)
vated, but is not ready to
give warning
Assistance systems
Monochrome display
Refer to¢ fig. 126
Driver assistance Meaning on the corre-
display in the in-
sponding side
strument cluster
Light gray line(s) Act ive lane assist is acti-
(left o r right) vated and ready to pro-
vide warnings .
Blinking line(s)
Active lane assist warns
(left or right)
you before leaving a lane.
In addition, the steering
wheel vibrates lightly.
Dark gray line(s) Active lane assist is acti-
(left or right) vated, but is not ready to
. . give warning
Messages in the instrument cluster display
If the active lane assist switches off automatical­
ly, the indicator light in the display turns off and
one of the following messages appears:
fl! Audi active lane assist: malfunction! See
owner's manual
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
fl! Audi active lane assist: currently unavaila­
ble . Camera view restricted due to surround­
ings. See owner's manual
This message appears if the camera is unable to
detect the lines. This could happen if:
- The camera fie ld of view
c::> page 126, fig. 124 is
dirty or covered in ice. Clean this area on the
windshie ld
¢ page 354.
- The camera field of view is fogged over. Wait
until the fog has cleared before switching the
active lane assist on again.
- The system has been unable to detect the lanes
for an extended period of time due to road con­
ditions. Switch active lane assist back on when
the lines are more visible.
fl! Audi active lane as sist: currently unavaila­
ble. See owner's manual
127

Assistance systems
There is a temporary malfunction that may pre­
vent the active lane assist from switching on. Try
sw itch ing the active lane assist on again later.
rl! Audi active lane assist: Please take over
steering!
This message appears if you are not steering by
yourse lf. Ac tive lane assist is activated, but is not
ready to give wa rning
& WARNING
Note that messages may be delayed or not
displayed on vehicles with accessories mount­
ed on the steering whee l, s uch as a steering
wheel spinner knob. Always keep your hands
on the steer ing wheel.
Adjusting the steering time and vibration
warning
Applies to: veh icles with Audi active lane assist
You con adjust individual active lone assist set­
tings in the Infotainment system .
-
.,. Select in the Infotainment system: IMENUI but­
ton
> Vehicle > left contro l button > Driver as­
sistance > Audi active lane assist .
Steering time
Early :
in this setting, the corrective steer ing hap­
pens continuously to help keep the vehicle in the
center of the lane.
late : in this setting, the system provides correc­
tive steering just before a wheel goes over a de­
tected lane marker line.
Vibration warning
You can switch the additional vibration warning
in the steering wheel on or off.
WARNING
With the vibration warning switched off,
there will also be no visual warning in the in­
strument cluster display when crossing a lane
marker line.
128
@ Tips
In certain ma rkets: your settings are stored
automat ically and assigned to the remote
control key in use.
Audi side assist
Description
Applies to: vehicles with Audi side assist
Fig. 127 Sensor detection range
Fig . 128 D isplay on the exterior mirror
Side assist (lane change ass ist) helps you mon itor
your blind spot and traffic behind yo ur vehicle.
Within the limits of the system, i t warns you
about veh icles that are coming closer or that are
traveling with you within sensor range
(D
¢ fig. 12 7. If a lane change is classified as criti­
ca l, the display @in the exterior mirror turns on
¢fig. 128.
The display in the left exterior mirror provides as­
sistance when making a lane change to the left,
while the display in the right exterior mirror pro­
vides assistance when making a lane change to
the right.
Information stage
As long as you do not activate the turn signal,
side assist
informs yo u about vehicles that are

Ass is tan ce sys tems
-If the lanes are narrow or if your are driving on
the edge of your lane. If this is the case, the system may have detected a vehicle in another
lane that is
not adjacent to your current lane.
-If you are driving through a curve . Side assist
may react to a vehicle that is in the same lane
or one lane over from the adjacent lane.
-If side assist reacts to other objects (such as
roadside structures like guard rails).
- In poor weather condit ions . The side assist
funct ions are limited.
Do not cover the radar
sensors ¢ fig. 130 with
stickers, deposits, bicycle wheels or other ob­
jects, because this will impair the function. Do
not use side assist when towing a trailer. For in­
formation on cleaning,
see¢ page 354 .
A WARNING
-Always pay attention to traffic and to the
area around your vehicle. Side assist cannot
replace a dr iver's attention . The driver alone
is a lways responsible for lane changes and
similar d riving maneuvers.
-In some situat ions, the system may not
function or its funct ion may be limited. For
example :
-If vehicles are approach ing or being left
behind very quickly. The display may not
turn on in t ime .
-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 outs ide of the sensor
range .
(D Note
The sensors can be displaced by impacts or
damage to the bumper, whee l housing and
underbody. Th is can impa ir the system. Have
an authorized A udi dealer or authorized Audi
Serv ice Facility check their function .
(i) Tips
-If the window glass in the driver's door or
front passenger's door has been tinted, the
130
-
display in the exterior mirror may be incor­
rect.
-For an exp lanation on conform ity with the
FCC reg ulations in the United States and the
Industry Canada regulations, see
¢ page 386.
Switching on/off
App lies to: vehicles with A udi side ass ist
The system con be switched on/off in the Info­
tainment system .
If the system is activated, the displays in the ex­
terior mirrors wi ll turn on briefly when the igni­
tion is switched on .
.,. Select in the Infotainment system: IMENU! but­
ton
> V ehicl e > left control button > D riv er as·
s is tance
> Audi side a ssist. Off switches the
system off.
(D Tips
When yo u switch side assist on or off, the ex it
warning system activates or deact ivates
¢ page 131.
Setting the display brightness
App lies to: vehicles wit h Aud i side ass ist
The display brightness con be adjusted in the In ­
fotainment system.
.,. Select in the Infotainment system: IMENU ! but­
ton
> Veh icle > left control button > Dri ver as­
s ist ance
> Audi side a ssist.
The disp lay br igh tness adjusts au tomatically to
the brightness of the surroundings, both in the
information and in the warning stage. In very
dark or very bright surround ings, the automatic
adjustment will set the display to the minim um
or max imum level. In such cases, you may notice
no change when adjusting the br ightness, or the
c h ange may only be noticeable once the sur ­
r oundings change .
Adjust the br ightness to a leve l where the display
i n the information stage will not disrupt your
view ahead . If you change the br ightness, the dis-
play in the exterior mirror w ill briefly show the
.,.

Assistance systems
Description
Applies to: vehicl es w ith Aud i drive select
The follow ing systems, among other things, are
influenced by drive select:
Engine and automatic transmission*
Depending on the mode, the engine and auto­
mat ic transmission* respond more quickly or in a
mo re balanced manner to accelerator pedal
movements . In the sporty
Dynamic mode , the
transmission shifts at highe r speed ranges.
Suspension control*
The suspension control* uses sensors to record
information regard ing steering movements ,
braking and acceleration operations by the driv­
er , road surface, driving speed, and load. This
makes it possible to adapt damping to the driv­
ing situation nearly in rea l time. With drive se ­
lect, you can adjust the suspension control to
sporty
( Dynamic ), comfortab le ( Comfort ) or bal­
anced
( Auto ).
Steering
The power steering adapts. Indi rect s teer ing that
moves easily as in
Comfort mode is especia lly
suited to long drives on highways . The
Dynamic
mode provides sporty , direct steering.
The following applies to vehicles with dynamic
steering* : the steering ratio changes based on
vehicle speed in order to maintain optimum
steer ing effort for the driver at all times . This
sets the steering to be less sensitive at higher
speeds in order to prov ide improved vehicle con­
trol. At reduced speeds, steering is more direct in
order to keep the steering effort as min imal as
possible when the driver is maneuvering the vehi­
cle. At low and average speeds, dynamic steer­
ing* additionally provides more responsive steer­
ing performance.
Sport differential*
As a component of the all wheel drive system
(quattro)
~ page 1 SO, the sport differential dis­
tributes the driving power to the rear axle de­
pending on the situation. The distribution of
power varies depending on the selected mode
134
from moderate (Comfort ) to sporty (Dynamic ).
The goal is a high level of agility and ability to ac­
ce lerate on curves . The vehicle is very respons ive
to steering.
Adaptive cruise control (ACC)*
The behavior when accelerating can be adjusted
from comfortable to sporty, depending on the
drive select mode. Adaptive cruise control also
responds to the driving behavior of the vehicle
ahead in a more conservative or sporty manner.
Engine sound*
The engine sound adapts to the current mode
and can be subtle to sporty.
@ Tips
The S selector lever position automatically en­
gages when the
Dynamic mode is selected .
Selecting the driving mode
Applies to: vehicles with Audi drive se lect
Fig. 135 Center co nsole: controls for drive se lect
.,. Press the left or right a rrow key ~ fig. 135 until
the desired mode appears in the instrument
cluster/ Infotainment system disp lay. Or
.,. Select in the Infotainment system: IMENU j but-
ton
> Vehicle > Audi drive select.
.,. Select and confirm the desired setting.
You can change the driving mode when the vehi­
cle is stationary or while driving. If traffic per­
mits, after changing modes, briefly take your
foot off the accelerator pedal so that the recently
selected mode is also activated for the engine.
.,.

Parking systems
Parking systems
General information
A ppl ies to: ve hicles w ith a rea r parking sys te m /pa rking sys ­
tem p lus/rearv iew camera/peripheral ca meras
Depending on your vehicle's equipment , various
parking aids will help you when parking and ma­
neuvering.
The
rear parking system is an audible parking aid
that warns you of obstacles
behind the vehicle
¢ page 137.
The
parking system plus assists you when park ­
ing by audibly and visually indicating objects de­
tected
in front of and behind the veh icle
¢ page 137.
The
rearview camera shows the area behind the
vehicle in the Infotainment system display . The
lines in the rearview camera image help you to
park or
maneuver ¢ page 138. The parking sys­
tem plus functions are also available
¢ page 137.
The
peripheral cameras give various views to
help you when parking or maneuvering
¢ page 140. The parking system plus functions
are also available
¢page 137.
A WARNING ,..__ -
- Always look for traffic and check the area
around your vehicle by looking at it directly
as well. The parking system cannot replace
the driver's attention. The driver is always
responsible when entering or leaving a park­
ing space and during similar maneuvers.
- Please note that some surfaces , such as
clothing, are not detected by the system .
- Sensors and cameras have blind spots in
which people and objects cannot be detect­
ed . Be especially cautious of small children
and animals .
- Always keep your eyes on the vehicle's sur ­
roundings, using the rearview mirror as
well.
- The sensors can be displaced by impacts or
damage to the radiator grille, bumper,
wheel housing and the underbody. The park­ ing system may be impa ired as a result.
136
Have an authorized Audi dealer or author­
ized Audi Service Facility check their func­
tion.
(D Note
- Some objects are not detected or displayed
by the system under certain circumstances:
- objects such as barrier chains, trailer draw
bars, vertical poles or fences
- objects above the sensors such as wall ex ­
tensions
- objects with certain surfaces or structures
such as chain link fences or powder snow
- If you continue driving closer to a low ob­
ject, it may disappear from the sensor
range. Note that you will no longer be
warned about this obstacle.
- Keep enough distance from the curb to re ­
duce the risk of damage to the rims.
{i) Tips
- The system may provide a warning even
though there are no obstacles in the cover ­
age area in some situations, such as:
- certain road surfaces or when there is tall
grass
- external ultrasonic sources such as from
cleaning vehicles
-in heavy rain, snow, or thick vehicle ex­
haust
- We recommend that you practice parking in
a traffic-free location or parking lot to be­
come familiar with the system . When doing
this, there should be good light and weath­
er conditions.
- You can change the volume of the signals
and the display ¢
page 143.
- Please refer to the instructions for towing a
trailer located in
¢page 144.
- What appears in the infotainment display is
somewhat time-delayed.
- Th e sensors must be kept clean and free of
snow and ice for the parking aid to operate .
- Th e rearv iew camera is automatically
cleaned when cleaning the rear window*
¢ page 60 .