2017 AUDI A4 Owners Manual

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3 a,
-Inflating the side bolsters* in the seat backrest
and s eat surfac e.
Aud i drive select*: the function is not active 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 collision 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 deploy 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 animals,
crossing or oncoming vehicles, objects such
as bars, railings or railcars, and objects that
are difficult to detect~&.
in General infor­
mation on page 97.
A WARNING
Pre sense city may be restricted or not availa­
ble in the following example situations:
- in heavy fog, rain, spray or snow.
- when there are visual obstructions, such as
glare, reflections or var iations in light.
- when it is dark .
- if the camera window or the windshield is
dirty, iced over, damaged or covered .
- when driving on snow, ice or loose ground .
- on sharp curves.
- if the ESC was restricted or switched off .
- when towing a trailer.
- when the driver's seat belt is unfastened.
- up to ten seconds after sw itching on the ig-
nition.
1 ) Thi s is no t avail able in some c oun tries.
Assist
(D Note
Impacts or damage to the camera mount on
the windshield can displace the sensor . Pre
sense city can be impaired by this. Have an au­
thorized Audi dealer or authorized Audi Serv­
ice Facility check their function .
(i) Tips
-You can cancel the system braking interven­
tion if you accelerate considerably or swerve
away .
- Keep in mind that pre sense city can brake
unexpectedly. Always secure any cargo or
objects that you are transporting to reduce
the risk of damage or injury.
- When there is a malfunction in the camera,
the pre sense city functions also switch off.
Settings in the
Infotainment system
Applies to: vehicles with Aud i pre sense
.,. Select in the Infotainment system: I MEN U! but­
ton
> Vehicle > left control button > Driver as­
s ist > Audi pre sense.
Audi pre sense-
switch On/Off. You can switch
the pre sense functions on and off with th is.
If the system is switched off, it switches on again
automatically once the ignition is switched on
again
l ).
Early warning1
) -the early warning can be
switched off or the pre sense city/front warning
point
( Early /Mediu m/La te) can be set .
Driver messages
Applies to: vehicles with Aud i pre sense
fll Audi pre sense currently restricted. Restrict­
ed sensor vision due to surroundings. See own­
er's manual
This message appears if the radar sensor and
camera view is obstructed, for example by leaves,
snow, heavy spray or dirt . If necessary , clean the .,..
111

Assist
sensors and the area around the camera
~ page 97, fig. 90 or~ page 116, fig . 112.
Ill Audi pre sense: malfunction! Please contact
Service
This message appears when the pre sense func­
tion is affected. For examp le, this could be
caused by a faulty sensor. Dr ive to an authorized
Aud i dealer or a utho rized Aud i Serv ice Facility im­
mediately to have the malfunction cor rected.
Ill Audi pre sense: currently restricted. Towing
mode
Pre sense rear and the pre sense city braking in­
tervent ions sw itch off automatically when the
electrical connector in the factory-installed trail­
er hitch is connected. There is no gua rantee the
f unct ions will swi tch off when using a re trofitted
trai ler hitch .
Ill Audi pre sense: currently restricted
This message appears if the ESC is restr icted or
sw itched off, for example.
Ill Audi pre sense: currently restricted. See
owner's manual
This message appears when there is a temporary
fa ilur e in a subsystem, such as the ESC. If this
message appears repeated ly, dr ive to an author­
ized Audi dealer or authorized Audi Se rvice Facili­
ty to have the malfunction corrected .
Ii] Audi pre sense: emergency braking system
off
This message appears if the pre sense functions
are switched off through the Infotainment sys­
tem or if th e system is not ready.
Audi active Lane assist
Description
Applies to: veh icles w ith Audi active lane assist
Active lane assist (lane departure warning) de­
tects lane ma rker lines withi n the l imits of the
system using a camera in the windshield. If you
are approaching a detected lane marker line and it appears likely that you will leave the lane, the
system will warn you w ith corrective stee ring .
You can override this steering at any time . If you
112
pass over a line, the steering wheel will vibrate
lightly. In order for this warning vibration to oc­
cur, it must first be switched on in the Infotain­
ment system. Active lane ass ist is ready for oper­
a tion when the lane marker line is detected on at
least one side of the vehicle .
T he system is des igned for driving on express­
ways and highways and therefore on ly activates
a t speeds above approximately 40 mph (65 km/
h) .
Applies to vehicles with s ide ass ist*: if you acti­
vate a turn signa l when active lane assist is ready
a nd it classifies a lane change as critical bec ause
of veh icles traveling a longside you or approach ­
i ng you, there will be noticeable corrective steer­
i ng shortly before you leave the lane. This will at­
tempt to keep your vehicle in the lane.
Applies to vehicles without side assist* : the sys ­
tem does not warn when it is ready if you act ivate
the turn signal before crossing the lane marker
lin e. In this case, it assumes that you are chang­
in g lanes intent ionally.
Applies to vehicles with adaptive cruise contro l*:
there is no corrective steer ing or warnings if the
system recognizes a distinct passing maneuver.
If the conditions are met, congestion assist
switches on at speeds under approximately
40 mph (65 km/h)
¢page 104.
_& WARNING
-The system warns the driver that the vehicle
is leaving the lane using correct ive steering.
The driver is always responsible for 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 steering
wheel.
- Corrective steering may not occur in certain
situations, such as during heavy braking .
- There may be cases where the camera does
not recognize all lane marker lines. Correc­
tive steering can only take place on the side
of the vehicle where lane marker lines are
detected.

-Other road structures or objects could possi­
bly be identified unintentionally as lane
marker lines. As a result, corrective steering
may be unexpected or may not occur .
- The camera view can be restr icted, for ex­
amp le by vehicles driving ahead or by rain,
snow, heavy spray or light shining into the
camera. This can result in act ive lane assist
not detecting the lane marke r lines or de­
t ecting them incorrectly.
- In certa in situations where v is ibility is low,
th e vehicle may swi tc h from an "early" to
" la te" steering co rrection .
- Under certa in conditions s uch as ruts in the
road, an inclined roadway o r crosswinds, the
c o rrective steering a lone m ay not be eno ugh
to keep the vehicle i n the middle of the lane .
- For safe ty re asons, active la ne as sis t m ust
not be used when the re are poor road and/
o r weathe r cond itions such as slippery
roads, fog, grave l, heavy rain, snow and the
potent ial for hydroplaning . Using active lane
assist under these conditions may increase
the risk of a crash.
Switching on and off
App lies to: veh icles with Audi active lane assist
Fig. 10 5 Turn s ig n al lever: b utton for ac tive lane ass is t
F ig. 106 Winds hield: ca mera window for act ive lane ass is t
A ss ist
.,. Press the r=;, fig . 105 button to switch the sys­
tem on and off. The indicator light in the in­
strument cluster turns on or off .
Analog instru- Audi virtual Meaning on
ment cluster cockpit /Head- the corre-
up display* sponding s ide
Green li ne(s) Green line(s) Active lane as-
(left or rig ht) (left or r ight) sist is activat-
-J '/ ed and ready
to provide
warnings .
-Red line Active lane as-
(left or r ight) sist warns you
'/ be fore leaving
a lane. In addi -
tion, the steer-
i ng whee l vi-
bra tes light ly.
Yellow line(s) Gray
Li ne(s) Active lane as-
(left or right) (left or r ight) sist is activat-
-J ed, but is not
r eady to give
warning
If the system is switched on but is not ready to
provide warn ings, one of the following could be
t h e cause:
- There is no lane marker line .
- The relevant lane marker lines are not detected
(for examp le , markings in a construction zone
or because they a re obst ructed by snow, dirt,
wate r o r li ght ing).
- The vehicle speed is be low the activation speed
of approximately 40 mph (65 km/h).
- The lane is narrower than approximately 8 feet
(2 .5 m) or w ider than approximately 15 feet
(4.5 m) .
-The curve is too narrow.
- The driver 's hands are not on the steering
wheel.
@ Tips
- Make sure the camera window c::> fig. 106 is
not covered by stickers or anything else. For
information on cleaning, refer to
c::> page 33 7.
113

Assist
-In certain countries: if the system is switch­
ed on, it will remain operable each time the ig nition is switched on.
Lane assist display in the instrument
cluster
A pp lies to: ve hicles with Audi active lane a ssist
F ig . 107 Instrument cl uster (multi -color d isplay): active
lane assist is switched on and rea dy to provide warnings
Fig . 108 Inst rument cluster (monochrome display): active
lane assist is sw itched on
You can open up the Driver assist display for the
active lane ass ist using the mult ifunction steer­
ing wheel buttons
r:::> page 12.
An additiona l indicator appears in the Head -up
d isp lay* .
Multi-Color Display
Refer tor:::> fig. 107
114
Driver assist display Meaning on the corre-
in the instrument sponding side
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 leaving a lane.
In addit ion, the steering
wheel vibrates lightly.
Gray line(s) Active lane assist is acti-
(left or right)
vated, but is not ready to
give warning
Monochrome display
Refer to r:::> fig. 108
Driver assist display Meaning on the corre-
in the instrument
sponding side
cluster
Light gray line(s) Active lane assist is acti-
(left or 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 act i-
(left or right) vated, but is not ready to
. . give warning
Messages in the instrument cluster display
If the active lane assist sw itches off automatical­
ly , the indicator light in the display turns off and
one of the follo wing messages appears:
rl1 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 window
¢page 113, fig. 106 is
dirty or covered in ice. Clean this area on the
windshield
r:::> page 337 .
-The camera fie ld of view is fogged over. Wait
until the fog has cleared before switching the
active lane assist on aga in.

-Th e system has been unable to detect the lanes
for an extended period of time due to road con­
ditions . Sw itch act ive lane assist back on when
the lines are more visible .
rm Audi active lane assist: currently unavaila­
ble. See owner's manual
There is a temporary active lane assist malfunc­
tion . Try sw itching the active lane assist on again
later .
• Audi active lane assist: malfunction! See
owner's manual
Drive to an authorized Aud i dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
rm Audi active lane assist: Please take over
steering!
This message appears if you are not steering by
yourself. Active lane assist is activated, but is not ready to give warning
Adjusting the steering time and vibration
warning
Applies to: vehicles with Audi active lane assist
You can adjust individual active lane assist set­
tings in the Infotainment system .
... Select in the Infotainment system: !MENUI but­
ton
>Ve hicle > left control button > Driver as­
sist
> Audi active lane assist .
Steering time Early:
in this setting, the correct ive steering 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 vehicle whee l goes over
a detected lane marker line.
Vibration warning
You can switch the additional vibration warning
in the steering wheel on or
off.
A WARNING
-
With the vibration warning switched off,
there will also be no visual warning in the in-
Assist
strument cluster disp lay when crossing a lane
marker line.
(D Tips
In certain countries: your settings are stored
automatica lly and assigned to the remote
control key in use.
Audi side assist
Description
Applies to: vehicles with Audi side assist
Fig. 109 Sensor detection range
Fig. 110 Disp lay on th e exterio r m irror
Side assist (lane change assist) helps you mon itor
your blind spot and traffic behind your vehicle .
Within its lim its, the system warns you about
vehicles that are coming closer or that are travel­
ing within your sensor range
(D <=?fig. 109. If a
lane change is classified as critical, the display@
turns on in the exterio r mirror
<=? fig. 110 .
The display in the left exterior mirror p rovides as ­
s istanc e when making a lane change to the left,
wh ile th e display in the rig ht exterior m irro r pro­
vides ass istance when making a lane change to
the right. ..,.
115

Assist
Information stage
As long as you do not activate the turn signal,
side assist
informs you of the vehicles that are
detected and classified as critical. The display in
the mirror turns on, but is dim .
The display remains dim in the information stage
so that your view toward the front is not distur­
bed.
Warning stage
I f the display in a mirror blinks br ight ly when you
ac tivate a turn signal, side assist is
warning you
about detected ve hicles that it has classified as
critical. If this happens, check traffic by glancing
in the exterior mirror and over your shoulder
q &.
in General information on page 117.
Appl ies to vehi cles w ith active lane ass ist*: the
disp lay in the mirror can also blink if you have not
activated a turn signal: if you are approaching a
detected lane marker line and it appears you will
be leaving the lane, side assist will warn you
about detected vehicles that it has classified as
cr itical.
(D Tips
You can adjust the brightness of the display in
the rearview mirror
q page 118.
116
General information
Applies to: vehicles w ith Audi side assist
®
®
©
Fig. 111 Driving s it u ations
~ AUDI
•
Fig. 112 Rear of the ve hicle: position of the se nsors
Side assist functions at speeds above approxi­
mately 9 mph (15 km/h).
@ Vehicles that are approaching
0
I
In certain cases, a veh icle w ill be classified as
critical for a lane change even if it is st ill some­
what far away. The faster a vehicle approaches,
the sooner the display in the exterior m irro r will
turn on.
@ Vehicles traveling with you
Vehicles traveling with you are indicated in the
exterior mirror if they are classified as cr itica l for
a lane change. A ll vehicles detected by side ass ist ..,.

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3 a,
are indicated, at the latest, by the time they en­
ter your "blind spot".
© Vehicles you are passing
If you slowly pass a vehicle that side assist has
detected (the difference in speed between the
veh icle and your vehicle is less than approximate­
ly 9 mph (15 km/h)), the display in the exterior
mirror turns on as soon as the vehicle enters your
blind spot.
The display will not turn on if you quickly pass a
vehicle that side assist has detected (the differ­
ence in speed is greater than approximately 9 mph (15 km/h)).
Functional limitations
The radar sensors are designed to detect the left
and right adjacent lanes when the road lanes are
the normal width. In some situations, the display
in the exterior mirror may turn on even though
there is no vehicle located in the area that is criti­
cal for a lane change. For example:
- 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 conditions . The side assist
functions are limited.
Do not cover the radar sensors ¢
fig. 112 with
stickers, deposits, bicycle racks or other objects,
because this will impair their function. Do not
use side assist when towing a trailer. For infor­
mation on cleaning, refer to¢
page 33 7.
A WARNING
- Always pay attention to traffic and to the
area around your vehicle. Side assist cannot
replace a driver's attention. The driver alone
is a lways responsible for lane changes and
similar driving maneuvers.
Assist
-In some 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 m ist.
- 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 adversely affect the sys­
tem. Have an authorized Audi dealer or au­
thorized Audi Service Facility check their func­
tion.
(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 incor­
rect.
Switching on and off
App lies to : vehicles wi th Audi sid e ass ist
The system can be switched on/off in the Info­
tainment system.
If the system is activated, the displays in the ex­
terior m irrors will turn on briefly when the igni­
tion is switched on.
.,. Select in the Infotainment system:
I MENU ! but­
ton
> Vehicle > left control button > Driver as­
sist
> Audi side assist. Off switches the system
off.
(D Tips
When you switch side assist on or off, the exit
warning system activates or deactivates
¢ page 118.
117

Ass is t
Adjusting the display brightness
Applies to: ve hicles w ith Audi side assis t
The display brightness con be adjusted in the In­
fotainment system.
• Se lect in the Infotainment system : I MENU I but­
ton
> Ve hicle > left control button > Dr ive r as­
s is t
> Audi side a ssist .
The display brightness adjusts automatically to
the brightness of the surroundings, both in the
i n formation and in the warning stage . In very
dark or very br ight surroundings, the automat ic
ad justment will set the disp lay to the min imum
or maxim um level. In s uch cases , you may notice
no change when adjust ing the b rightness, or the
change may only be noticeable once the s ur­
roundings change .
Adj ust the brightness to a level where the disp lay
in the informa tion stage w il l no t dis rup t your
view ahead. If you change the brightness, the dis­
p lay 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.
@ Tips
- Side assist is not active wh ile you are mak­
i ng the adjustment.
- Your settings are automatically stored and
assigned to the remote control key being
used.
Exit warning system
A ppl ies to: ve hicles w ith exit warning system
F ig. 11 3 Examp le display
118
F ig. 11 4 Door : warn ing str ip
When the vehicle is stationary, the exit war ning
system warns the passenge rs of a poss ible coll i­
s io n when opening the doo r. Wi thin the limits of
the system, the system monitors the
areas be­
hind and next to the vehicle using the radar sen­
sors
¢ page 116, fig . 112. Moving objects that
are approached from behind, such as cars, are
detected
¢fig. 113.
When you open the door, the warning strip on
the affected door blinks
¢ fig. 114 if anothe r
road user is detected and the situation is classi­
fied as crit ical. The d isp lay in the exterior mirror
on the affected side flashes at the same time.
If
the door is already ope n and another road user is
detected and the sit uat ion is classified as cr itica l,
then the co rresponding disp lays t urn on.
A WARNING
-
- Always pay attention to traffic and to the
area around your vehicle. The ex it wa rning
sys tem does not rep lace the attention o f the
passengers. The veh icle passengers are al ­
ways responsible for opening the doors and
exiting the vehicle.
- The exit warning system can be ava ilab le for
up to approximately three minutes after un­
lock ing the vehicle and opening the door as
well as after switching off the ignition. Then
the system switches off w ith a br ief flashing
of the d isplays.
- The exit warning system ca nnot notify you
of every app roaching object or person, such
as joggers or pe destrians.