2018 AUDI A4 key

Driving
St ee ring lock1
)
The stee ring locks when you t urn the engine off
using the
! S T A RT ENGINE ST OP I button and
open the driver 's door. The locked steering helps
prevent v ehicle theft .
Emergency off function*
If it is abso lutely necessary, the engine can also
be turned off while dr iv ing at speeds star ting at
4 mph (7 km/h). To switch the eng ine off, press
the
! S TAR T ENGINE ST OP I button tw ice in a row
briefly or press and hold for longer than two sec­
onds.
A WARNING
- Never turn off the engine before the veh icle
has come to a comp lete stop . The full func­
t ion of the brake booster and the power
stee ring is not guaranteed. Yo u must use
more force to turn or b rake . Because you
cannot s teer an d brake as you usu ally
would, t his co uld lead to accidents and ser i­
ous in juries.
- Alw ays t ake the key wi th you w henever you
leave you r vehicle . Othe rw ise, the engi ne
cou ld be started o r electrical equipment
s uch as the power windows cou ld be operat­
ed . This can lead to se rious injury.
- For safety reasons, always park the vehicle
with the se lector lever in the P position
(a u­
tomat ic transmission) or with 1st gear en­
gaged (manual transmission). Otherwise
the vehicle could roll away u nintent ionally .
(D Note
If the eng ine has been under heavy load for
an extended per iod of t ime, heat builds up in
the engine compartment after the engine is
sw itched off and there is a risk of damaging
the engi ne . For this reason, let the engi ne run
for at idle for approximately two minutes
be­
fore shutting it off.
l) Th is fun ction is not avai la bl e in al l co un tries.
84
(D Tips
Fo r u p to 10 minutes after stopping the en­
g ine, the radiator fan may turn on again auto­
matically or it may continue to r un (even if
the ig nition is switched off) for the following
r easons:
- The coolant temperature is increas ing due
to trapped heat.
- If the eng ine is wa rm and the eng ine com­
partment a lso heats up from strong sun­
light .
- Applies to: vehicles with diesel particulate
filter: The emissions control system is heat­
ed through the regeneration process, even if
the engine has not reached its operat ing
tempe rature yet.
Messages
Engin e running . Warning! Turn off ignition be ­
fore leavin g vehicle
This message appears and a warning tone sounds
i f you open the drive r's door w hen the eng ine is
r un ning .
Applies to: vehicles with manual transmission
Please pres s clutch pedal
This message appears if you do not press the
clutch pedal to start the eng ine. The engine can
o nly be started w hen the clutch pedal is pressed.
Applies to: vehicles with automatic transmissions
Plea se pres s brake pedal
This message appears if you do not press the
bra ke peda l when sta rting t he eng ine .
Ill Remote control key : key not recognized. Is
the key still in the vehicle ?
This indicator light turns on and this message ap­
pears if the ignition key was removed from the
vehicle when the engine was running . If the igni­
tion key is no longer in the vehicle, you cannot
switch on the ignition or start the engine once

you stop it. You also cannot lock the vehicle from
the outside .
Applies to: vehicles with au tomatic transm issions
Shift to P , otherwise vehicle can roll away.
Doors do not lock if gearshift is not in P
This message appears for safety reasons if the
selector lever is in the N position when you
sw itch the ignition off. Move the selector leve r to
the P position. Otherwise the vehicle is not pro­
tected from ro lling and it cannot be locked .
DJ Remote control key: hold back of key
against the designated area . See owner 's man­
ual
If the indicator light turns on and th is message
appears, there is a malfunction
q page 85 .
Applies to: vehicles with automatic transmissions
Shift to P before leaving car, otherwise vehicle
can roll away
This message appears if the driver's door is
opened while the ignition is switched on and the
transmission has not been shifted to the P posi­
tion . Sh ift the transmiss ion into the P position
and turn off the ignition if you are leaving the ve­
hicle . Otherwise the vehicle could roll. Also see
c::> page87 .
Starting the engine when there is a
malfunction
It may not be possible to start the engine under
certain circumstances, for example if the battery
in the vehicle key is drained, if interference is af­
fected the key or if there is a system malfunc ­
tion .
Fig. 94 Cente r console/ remote contro l key: starting t he
eng ine if there is a malfunc tion
Driving
Requirement: the message Remote control key:
hold back of key against the designated area .
See owner's manual
must display and the DJ i n­
dicator light must turn on.
.,. Place the remote control key on the location
shown in the illustration
y >l) c::> fig . 94.
Applies to: vehicles with manual transmission
.,. Press the clutch pedal.
Applies to: vehicles with automatic transmissions
• Press the brake pedal.
.. Press the !START ENGINE STOP ! button. The
engine will start.
.,. Drive to an authorized Audi dea ler or author­
ized Aud i Service Facility immediately to have
the malfunction corrected.
@ Tips
You can view the message again by pressing
the
I S TART ENGINE STOP I button.
Start/Stop system
Description
Applies to: vehicles with Start/Stop system
The Start/Stop system can help increase fue l
economy and reduce CO2 emissions.
In Sta rt/Stop mode, the engine shuts off auto­
matically when the vehicle is stopped, such as at
a traffic light. The ignition remains switched on
during this stop phase . The engine wi ll restart
automatica lly when needed .
Th e Start/Stop system is a utomaticall y activated
as soon as the ignition is switched on.
Basic requirements for Start/Stop mode
-The driver's door must be closed .
-The driver's seat belt much be fastened.
- The hood must be closed.
- The vehicle must have driven faster than
2 mph
(3 km/h) since the last time it stopped .
- A trailer must not be hitched to the vehicle.
If you leave the vehicle during a stop phase, the
engine can be restarted within approximately 30
seconds if the following requi rements are met:
IJ>
85

a co .... N ..... N .... 0 0
3 co
~ Applies to: automatic transmission: Select the
P selector lever position .
~ Turn the eng ine off ¢,&. .
~ Applies to: manual transmission: Engage 1st
gear.
~ Turn the steering wheel when parking on in ­
clines so that the wheels will roll into the curb
if the veh icle starts moving .
A WARNING
-Never accelerate or release the clutch pedal
carelessly when a gear or a selector lever
posit ion (automatic transmission) is engag­
ed whi le the vehicle is stationary and the en­
gine is running. Otherwise, the vehicle will
start to move immediately and this cou ld re­
sult in an accident.
- Emergency braking should only be used in
an emergency, when the normal brake peda l
has failed or the brake pedal is obstructed.
During emergency braking, your veh icle will
brake sim ilar to heavy brak ing . ESC and the
associated components (ABS, ASR, EDL)
cannot overcome the laws of physics,
Around curves and when road or weather
conditions are bad, a full brake application
can cause the vehicle to skid or the rear end
to swerve, which increases the risk of an ac­
c ident.
- If the power supply fails, you cannot set the
park ing brake if it is released . If th is is the
case, stop the veh icle on leve l ground and
secure it by engaging 1st gear (manual
transmiss ion) or select ing the P selector lev ­
er position (automatic transm iss ion). See an
authorized Aud i dealer or autho rized Aud i
Service Facility for assistance .
- Always take the vehicle key with you when
leaving your vehicle, even if for a short pe ri­
od of time. This applies particu larly when
children remain in the vehicle. Otherwise,
children could start the engine, release the
parking brake or operate electrical equip­
ment such as powe r windows, which in­
creases the risk of an acc ident.
- No one, especially children, shou ld remain
in the vehicle when it is locked. Locked
doors make it more difficult for emergency
D riving
workers to get into the vehicle, which puts
lives at risk.
(D Tips
Ap plies to : vehicles with auto matic transmissions
When stopp ing at a traff ic signa l or stopp ing
i n city traffic, you can set the park ing brake
manually . The vehicle does not have to be
held with the brake pedal. The park ing brake
eliminates the tendency to creep when a se­
l ector lever position is engaged. As soon as
you press the a ccelerator peda l, the parking
brake releases automatically and your vehicle
starts to move r=;,
page 89.
(j) Tips
-Occasional noises when the pa rking brake is
set and released are normal and are no t a
cause for concern.
- The parking brake goes through a self-test
cycle at regular intervals when the vehicle is
stopped. Any noises assoc iated with this are
normal.
- If there is a power failure, the parking brake
wi ll not set if it is released, and it will not
re lease if it is
set ¢.&. . See an a uthorized
Audi dealer or authorized Audi Service Fa­ cility for assistance.
Starting to drive
Various convenience and safety funct ions may be
available when the vehicle begins driving, de­
pending on vehicle equipment .
Starting on hills with the p arking brake set
Requirement: the driver's door must be closed .
~ To start driving comfortably when on a hill , set
the parking brake and begin driving as usual.
The braking force of the parking brake does not
release a utomatically until the wheels build up
enough driving force.
Starting on hills with hill hold assist
Hi ll ho ld assist makes it easier to start on hills.
Requirement: the driver's door must be closed
and the engine must be running.
89

-Under some circumstances, traffic sign rec­
ognition may not detect traffic s igns cor­
rectly or detect them at all. As a result, the
system may not display the correct speed
limit or any speed limit.
- Traffic sign recognition does not adapt your
vehicle's speed to match the speed
limit!
-The display in the instrument cluster is
based on the units of measurement used for
speed in that country. As a result, the d is­
play
50 in the instrument cluster can mean
either km/h o r mph, depending on the coun ­
try .
Operation
Applies to: ve hicles with camera-based traffic sign recogni ­
tio n
Fig . 106 In strument cluste r: add it iona l display
Accessing traffic sign recognition
• Select: the first tab > Traffic signs.
Setting a speed warning
You can set a warn ing threshold down to 10 mph
(lS km/h). The traffic sign fo r the current detect­
ed speed limit w ill blink in the display if you ex­
ceed the set threshold .
• Select in the Infotainment system: !MENUI but­
ton
> Vehicle > left control button > Driver as ­
sistance
> Speed warning > Traffic sign based
warning.
Additional display
If a v iew other than the traffic sign recognition is
selected in the ins trument cluster display, the
speed limit will be shown in another display
co fig. 106 . The current applicable speed limit will
Assistance systems
be shown there, if possible within the limits of
the system.
(D Tips
- An additional indicator appea rs in the head­
up display* .
- Your speed warning settings are stored au­
tomatically and assigned to the remote con­
trol key in use.
Messages
Appl ies to: vehicles with camera-based traff ic sig n recog ni·
tio n
f!ji Traffic sign recognition : currently unavaila­
ble . Camera view restricted due to surroundings
Function currently unavailable. Camera view re­
stricted due to surroundings
This message appears if the camera's visual field
is covered
<:::>page 104, fig . 105. The system w ill
switch itself off.
f!ji Traffic sign recognition: currently restricted.
See owner's manual
This message appears if there is a malfunction in
the navigation system, for examp le. The speed
limit display is limited, which increases the risk
of an incorrect d isplay .
lj Traffic sign based speed warning: currently
unavailable. See owner's manual
There is no warning when the set th reshold is ex­
ceeded.
No traffic sign information available
There is no valid navigation data and do speed
li mits were detected . Or there is a recommended
speed but the re is not a speed limit (for examp le
driv ing on and off the expressway).
Malfunction! See owner's manual
The system cannot guarantee correct function
and is switched
off. See an authorized Audi deal­
er or authorized Audi Service Facility for assis ­
tance .
Function not available in this country
105

Ass is tance sy stems
That is equal to the general recommendation of
"half the speed shown on the speedometer" .
The distances provided are specified val ues. De­
pending on the d riving si tuat ion and how the ve­
hicle ahead is driving, the actual distance may be
mo re or less than these target distances.
If you change the time gaps, the new ly set value
appears br iefly in the instrument clus ter display
II for example, for Di stance 3. T his only occurs
if the
Dr iver a ssistance display is not current ly
shown in the display
r:!:> page 110, fig. 112.
Distance 1 : this setting corresponds to a d istance
of 92 feet (28 meters) when traveling at 62 mp h
(100 km/h), or a time distance of 1 second.
Distan ce 2 : this setting co rresponds to a d istance
of 118 feet (36 meters) when traveling at 62
mph (100 km/h), or a time distance of 1.3 sec ­
onds.
Distan ce 3 : this setting corresponds to a d istance
of 164 feet (SO meters) when traveling at 62
mph (100 km/h), or a time distance of 1.8 sec ­
onds.
Distan ce 4 : this setting co rresponds to a d istance
of 219 feet (67 meters) w hen t raveling a t 62
mph (100 km/h), or a time distance of 2 .4 sec ­
onds.
Distan ce 5 : this setting co rresponds to a d ista nce
of 328 feet (100 me ters) when traveling at 62
mph (100 km/h), or a time distance of 3 .6 sec ­
onds.
A WARNING
When setting the distance, the driver is re­ sponsible for adhering to any applicab le legal
regulat ions.
(D Tips
- Depending on the selected driving mode in
drive select* and the set distance , the driv­
i ng behavior will vary from dynamic to com­
fortable when accelerating
¢ page 134.
- Distance 3 is set automatically each time
you switch the ignit ion on. If you would like
to set another d istance as the default set­
ting, you can have the
adaptiv e cruis e con-
114 trot
menu enabled by an authorized Aud
i
dea ler or authorized Audi Service Facility .
- Your settings are a utomat ica lly stored and
assigned to the remote control key being
used.
Setting the driving program
Applies to: vehicles with Aud i adaptive cru ise control
Depend ing on the selected driving program and
distance, driving behavior when accelerating will
vary from dynam ic to comfortable .
Setting the driv ing program on vehicle s
without drive select*
.,. Select in the Infotainment system: IMENU j but­
ton
> Veh icle > left control button > Driver as­
si stance
> Audi adapti ve crui se control > Dr iv­
ing program > Comfort, Standard or Dynamic .
Setting the d riving mode on veh icles w ith
drive sel ect*
See r:!:> page 134.
@ Tips
Your settings are automatically stored and as­
signed to the remote control key being used.
Driver intervention request
App lies to : vehicles with Aud i adapt ive cru ise control
F ig . 117 In strument cl uster: request for d river interven·
t ion
The request for d river intervention instructs you
to take over if the adaptive cruise control braking
funct ion is not able to maintain a suffic ient d is­
tance to the vehicle dr iv ing ahead
r:!:> fig. 117 .

Assistance systems
-when there are visual obstr uctions, such as
glare, reflections or variations in light
- when it is dark
- if the camera window or the windshie ld is
dirty, iced over, damaged or covered
- when driving on snow, ice or loose ground
- in curves
- if the ESC was restricted or switched off
- when towing a tra iler
- when the driver's seat belt is unfastened
- up to ten seconds after switching on the ig-
nition
(D Note
Impacts or damage to the camera mount on
the windshield can disp lace the sensor . Pre
sense city can be impa ired by this. Have an au­
thorized Audi dealer or authorized Aud i Serv­
ice Facility check the ir funct ion.
{D) 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 transport ing to reduce
the r isk of damage or injury.
- Specific pre sense city funct ions sw itch off
when the ESC is limited or switched
off
¢ page 147 or the hill descent assist* is
switched on
¢page 148.
-When there is a malfunction in the camera,
the pre sense city funct ions also switch off.
Settings in the
Infotainment system
A pp lies to: ve hicles w ith Audi p re se nse
.,. Select in the Infotainment system: IMENU I but­
ton
> Vehicle > left control button > Driver as­
sistance
> Audi pre sense.
Turn on/off Audi pre sense
-the pre sense func­
tions can be turned on and
off.
124
If the system is switched off, it switches on again
automatica lly once the ignition is switched on
again.
Early warning -the early warning can be switch­
ed
off or the pre sense city/front warning point
can be set
( Early /Medium /Late ).
Set the warning time for the early warning to
Early at first . If this causes undesi red early warn­
ings to appear, then set the warning time to
Me­
dium .
The Late warning time should only be set
i n spec ial circumstances, for example, when driv­
i ng with a very dynamic style.
(D Tips
Your settings are automatically stored and as ­
signed to the remote control key being used.
Messages
Applies to: vehicles wi th Audi pre sense
II Audi pre sense: malfunction! Please contact
Service
This message appears when the pre sense func­
tion is affected . For example, th is could be
ca used by a faulty sensor. Drive to an authorized
Audi dealer or authorized Audi Service Facility im­ mediately to have the malfunction corrected.
II 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
sensors and the area around the camera
¢ page 109, fig . 108 or ¢page 129, fig. 130 .
II Audi pre sense: currently restricted. Towing
mode
For vehicles wi th a trailer hitch installed at the
factory, the pre sense rear functions switch
off
when the electrical connector at the socket is
plugged in. There is no guarantee the functions
will switch
off when using a retrofitted trailer
hitch.
II Audi pre sense: currently restricted

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

brightness level in the information stage. The
brightness of the warning stage is linked to the
brightness in the informat ion stage and is ad just­
ed along with the information stage.
(D Tips
- Side assist is not active whi le you are mak­
i ng the ad justment.
- Your settings are automatically stored and
assigned to the remote control key being
used.
Exit warning
App lies to: ve hicles with exit warning system
Fig . 131 Examp le display
F ig . 132 Door: warning strip
When the vehicle is stationary, the ex it warning
system warns the passengers of a possib le colli­
sion when opening the door. Within the limits of
the system, the system monitors the areas be­ h ind and next to the vehicle using the radar sen­
sors
c.> page 129, fig . 130 . Mov ing objects that
are approach ing from be hind, such as cars, are
detected
c.> fig. 131.
When you open the door, the warning str ip on
the affected door blinks
c.> fig . 132 if another
road user is detected and the s ituation is classi­
fied as critical. The display in the exterior m irror
A ss is ta nce syst ems
on the affected side flashes at the same time. If
the door is already open and another road user is detected and the situation is classified as cr itical,
then the corresponding disp lays turn on.
A WARNING
- Always pay attention to traffic and to the
area around your vehicle. The ex it warn ing
system does not replace the attention of the
passengers. The veh icle passengers are al­
ways responsible for opening the doo rs and
exit ing the veh icle.
- The exit warning system ca n be ava ilable for
up to app roximately three minutes after un­
lo cki ng the veh icle and opening the door as
well as a fter switching off the ignition. Then
the system switches off with a brief flashing
of the displays .
- The exit warning system cannot notify you of every approaching object or person, such
as joggers or pedestrians.
A WARNING
-
The exit warning system is subject to limita-
tions and cannot warn you before every im­
pending collis ion:
- If the veh icle is too wide for the parking
space and covered by the neighboring
veh icles.
- Approaching objects or peop le such as cy­
clists or skateboarders may not be detected
under certain circumstances.
- The system does not react to stat ionary ob­
jects.
- The v iew of the radar sensors may be im­
pa ired by leaves, snow, heavy spray or dirt .
Clean the area in front of the sensors
c.>page 129, fig. 130.
(D Note
Also read the information in c.> (D in General
information on page 130.
@ Tips
- The exit warning system is switched on and
off through the s ide ass ist
c.> page 130.
131