2015 AUDI A3 ignition

engine is switched off - there is a risk of
damaging the engine. For this reason, let
the engine run for at idle for approximate­
ly two minutes before shutting it off .
(D Tips
-After the engine has been switched off,
the radiator fan can continue to run for up to 10 minutes - even with the ignition
switched off.
It can also switch on again
after some time if the coolant tempera ­
ture rises as a result of heat bui ldup or if
the engine compartment is heated by
sunlight and the engine is hot.
Starting the engine if there is a
malfunction
Appl ies to vehicles: with convenience key
It may not be possible to start the engine un­
der certain circumstances , for example if the
battery in the vehicle key is drained, if inter ­
ference is affected the key or if there is a sys­
tem malfunction.
Fig. 67 Steering col umn/rem ote control key : start ing
th e engin e if th ere is a malfun ctio n
As long as the message y>l) Key not recog­
nized. See owners manual
appears, you can
emergency start your vehicle.
.. Press the brake pedal
9 &. in Starting the
engine with the
S TART ENGINE STOP but­
ton on page 73.
.. Press the l ~s~ T~A~R= T~E~N-G~I~N~E~S~T~O~P~ I button.
.. Hold the master key as shown in the illustra­
tion in the location indicated
y>>) 9 fig. 67 .
The eng ine will start .
.. If the engine does not automatically start,
press the
I STAR T ENGIN E STOP ! button
again.
Driving 75
Drive to an authorized Audi dealer or qualified
repair facility immediately to have the mal­
function corrected .
(D Tips
You can display the message that appears
during an emergency by pressing the
I START ENGINE STOP!* button.
Driver messages
Turn off ignition before leaving car. Battery
is discharging
This message appears and a warning tone
sounds if you open the driver's door when the
ignition is switched on. Turn off the ignition
so that the battery will not discharge.
Pressing start/stop button again will switch
off engine!
This message appears when you press the
!STAR T ENG INE ST OP!* button while driving
¢ page 74, Emergency off function.
Engine start system malfunction. Please
contact Service
The eng ine automatic start system has a mal­
funct ion. Drive to an authorized Audi dealer or
qualified repair facility immediately to have
the malfunction corrected. To start the en­
gine, press and hold the
I STAR T ENG INE ST OP I button.
DI Key not recognized. See owner 's manual
This message appears if there is no conven­
ience key inside the vehicle or if the system
does not recognize the key . The convenience
key may not be recogn ized, for example, if it is
cove red by an object that
disrupts the s ignal
(such as a briefcase), o r if the key battery is
weak . Electronic devices such as cell phones
can a lso interfere with the signal.
To start or stop the engine, see "Correct ing a
malfunction "¢
page 75.
Ill Key not in vehicle?
The Ill indicator light turns on and this mes ­
sage appears if the convenience key was

76 Driving
removed from the vehicle when the engine
was running.
If the convenience key is no lon­
ger in the veh icle, you cannot switch the igni­
tion on or start the engine once you stop it.
You also cannot lock the vehicle from the out­
side .
Press brake pedal
This message appears if you do not press t he
brake peda l to start the engine in a vehicle
with an automatic transmission .
Please engage N or P
This message appears whe n starting or stop­
p ing the engine if t he selecto r lever is not in
the Nor P pos ition. The eng ine will not star t/
stop.
Shift to P, otherwis e vehicle can roll away.
Door s do not lock if lev er i s not in P
This message appears for safety reasons
along w ith a warning tone . It appears if the
selecto r lever for the automat ic transm iss io n
is not in the P position when switch ing the ig­
ni tion off with the
!S TAR T ENGINE STOPI*
button . Sh ift the sele ctor leve r to t he P posi­
tion. Otherwise, the vehicle could ro ll. You al­
so cannot lock the vehicle using the locking
sensor on the door handle o r using the con­
venience key .
Electromechanical
parking brake
Operation
The electromechanical parking brake replaces
the hand brake .
Fig. 68 Center conso le: Park ing brake
.,. Pull the switch @¢ fig. 68 to set the pa rk­
ing brake. The. (USA models) . (Cana­
da mode ls) indicator light in the button and
in the instrument cluster display turns on .
.,. To release the parking brake, press the brake
pedal or the acce lerator pedal and press the
button @. The . (USA models) /. (Cana­
da mode ls) indicato r light in th e button and
ins trument clus ter tur ns off.
Your vehicle is equipped with an electrome ­
chanical pa rking brak e. The parking bra ke is
designed to p revent the veh icle from rolling
u ninte ntionally and repla ce s the hand b rake.
In add ition to the normal functions of a tradi ­
tio na l ha nd b rake, the electromechanical
parki ng b rake provides va rious conven ien ce
and safe ty f unct ions .
When starting
-The integral hill start assist helps you when
d riving by au tomatical ly re leasi ng the park­
ing bra ke ¢
page 77, Starting from a
stop.
- W hen start ing on i nclines, t he h ill sta rt as­
si st preven ts the v ehicl e from unintentiona l­
ly ro lling back . T he b raking force of the
p ar king br ake is no t released unt il su ffi cien t
driving force has been bui lt up at the
wheels .
Emergency brake function
An emergency b rak ing functions ensu res that
t h e vehi cle can be s lowed down even if the
n ormal brakes f ail¢ page 78, Emergen cy
braking fun ction.
Indicator lights
- I f the pa rk ing brake is set when the ignition
is
switched on , the. (USA models) /.
(Canad a models) indica to r li ght turns on in
t he display and b utton .
- If the pa rk ing brake is se t when the ignition
is
switched off , the. (USA models) /.
(Canada mo dels) indica tor ligh t turns on in
the display and button for about 20 sec­
onds.

& WARNING
-Do not press the accelerator pedal inad­
vertently when the vehicle is stationary and the engine is running and a gear is
selected. Otherwise the vehicle will start
to move immediately and could result in
a crash.
- If the power supply fails, the released
parking brake can no longer engage. In
this case, park the vehicle on level ground and secure it by placing these­
lector lever in the P position (automatic
transmission). See your authorized Audi dealer or qualified repair facility.
(D Note
If the symbol . in the display or the indi­
cator light. (USA models)/ . (Canada
models) in the instrument cluster flashes,
there is a malfunction in the brake system.
Please refer to the detailed description of
the indicator lights¢
page 18.
-If the indicator light . (USA models)/
• (Canada models) or
Ill turns on,
there may be a malfunction in the park­
ing brake ¢
page 19.
(D Tips
-You can set the parking brake at any time
-even with the ignition turned
off. To re-
lease the parking brake, the ignition
must be turned on and the brake pedal
must be pressed.
- If driver 's door is opened while the igni­
tion is switched on, the parking brake
sets automatically. This prevents unin­
tended rolling of the vehicle .
- Occasional noises when the parking
brake is set and released are normal and
are not a cause for concern.
- When the vehicle is parked, the parking
brake goes through a self -test cycle at
regular intervals. Any noises associated
with this are normal.
- If there is a power failure, the parking
brake will not set if it is released, and it
will not release if it is set ¢,&. . See your
Driving 77
authorized Audi dealer or qualified repair
facility.
· Parking
.. Press the brake ped al to stop the vehicle .
.. Pull the switch @ ¢
page 76 , fig . 68 to set
the parking brake.
.. Place the selector lever in the P position .
.. Turn the engine off¢.&_ .
.,. Turn the steering wheel when parking on in­
clines so that the wheels will roll into the
curb if the vehicle starts moving.
& WARNING ~ -
-Always take the vehicle key with you
when leaving the vehicle, even for a short period of time. This applies partic­
ularly when children remain in the vehi­
cle. Otherwise children could start the
engine, release the parking brake or op ­
erate electrical equipment such as power
windows, which increases the risk of an
accident .
- No one should remain in the vehicle
when it is locked, especially children.
Locked doors make it more difficult for
emergency workers to get into the vehi­
cle, which puts lives at risk.
Starting from a stop
The start assist function ensures that the
parking brake is released automatically upon starting.
Stopping and applying the parking brake
.. Pull the switch@¢ page 76, fig . 68 to set
the parking brake.
Starting and automatically releasing the
parking brake
Requirement: The driver's door must be
locked and the driver's safety belt must be
fastened.
.. When you press the accelerator pedal , the
parking brake is automatically released and
your vehicle begins to move.
•

.. To resume cruise control, release the lever
or take your foot off the acce lerator pedal.
Interrupting cruise control while driving
.. Move the lever into position @. The mes­
sage
ACC: standby appears . Or
.. press the brake pedal.
.. To resume the stored speed, move the lever
into position @.
Interrupting cruise control when stopped
Applies to vehicles w ith an automatic trans­
mission:
.,. Push the lever away from you into position
@ . The message
ACC: standby appears.
.. To resume cruise control, press the brake
pedal and pull the lever toward you into po­
sition @.
_& WARNING
It is dangerous to activate cruise contro l
and resume the stored speed when the
current road, traffic or weather conditions
do not permit th is . This could result in a
crash .
Setting the distance
Appl ies to vehicles: with Audi adaptive cruise co ntrol
Fig. 78 Opera tin g lev er: Se tting the d ista nce
-
.. Tap the switch to display the current set dis ­
tance
¢ fig . 78.
.. To increase or reduce the distance in incre­
ments, tap the switch again to the right or
left . The distance between the two vehicles
will change in the instrument cluster d is ­
play .
Audi adaptive cruise control 87
When approaching an object detected ahead,
the adaptive cruise control system brakes to
match that object's speed and then regulates
to the stored distance . If the object detected
ahead accelerates, adaptive cru ise control w ill
also accelerate up to the stored speed .
The hig her the speed, the greater the distance
in meters ¢
A. The Distance 3 setting is rec­
ommended. That is equal to the general rec­
ommendation of "half the speed shown on
the speedometer ".
The distances provided are example values. Depending on the driving situation, the cur­
rent speed and the way the object detected
ahead is driving, the actual distance may be
more o r less than these target distances .
o:;:::::,_o:;:::::, ___ Distance 1: This setting corre-
sponds to a d istance of 2 feet/ 28 meters
when traveling at 62 mph (100 km/h), or a
time distance of 1 second .
o:;:::::, __ o:;:::::, __ Distance 2: This setting corre­
sponds to a d istance of 118 feet/ 36 meters
when traveling at 62 mph (100 km/h), or a
time distance of 1.3 seconds.
o:;:::::, ___ o:;:::::,_ Distance 3: This setting corre-
sponds to a d istance of 164 feet/ 50 meters
when traveling at 62 mph (100 km/h), or a
time distance of 1.8 seconds.
o:;:::::, ____ o:;:::::, Distance 4: This setting corre-
sponds to a d istance of 219 feet/ 67 meters
when traveling at 62 mph (100 km/h), or a
time distance of 2 .4 seconds.
_& WARNING
Following other vehicles too closely in­
cre ases the risk of collisions and serious
personal injury.
- When setting the distance, you as the
driver are responsible for adhering to any
applicable local regulations .
(D Tips
Distance 3
is set automatically each time
you switch the ignition on.
It you would
like to have th is distance as a basic setting, .,..

92 Audi pre sense
to take complete control whenever nec­essary. Always keep the safe and legal
distance between your vehicle and
vehicles up ahead .
- Pre sense front works within limits and
will not respond outside the system lim­
its, for example when approaching a
stopped vehicle or stationary obstacle
(end of a traffic jam or vehicle that has
broken down in traffic).
- Always remember that the radar sensor
for the pre sense front works only within
defined detection and range limits that
may prevent the proper detection of oth­
er vehicles.
- The radar sensor's function and range
can be reduced by rain, snow and heavy
spray. Moving vehicles up ahead may not
be promptly detected or may not be de­
tected at all.
- Reflective surfaces including crash barri­
ers or tunnel entrances may impair the
function of the radar sensor.
(]) Note
The sensor can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. The pre sense front sensor can
be damaged by this. Have your authorized
Audi dealer or qualified repair facility
check their function.
@ Tips
- You can cancel the braking with increas­ ing force that is initiated by the system
by braking yourself, by accelerating no­
ticeably or by swerving.
- Driver messages about pre sense
¢page 92.
- Keep in mind that pre sense can brake
unexpectedly. Always secure any cargo or
objects that you are transporting to re­
duce the risk of damage or injury.
- Certain pre sense front functions switch off when ESC is switched off (sport
mode) or when driving in reverse. -
The pre sense front functions are not
available if there is a malfunction in the
adaptive cruise control* system
¢page
88 or ¢page 92.
- Keep in mind that pre sense front can
brake unexpectedly. Always secure any
cargo or objects that you are transport­
ing to reduce the risk of damage or in­
jury .
Settings in the Infotainment system
Applies to vehicles: wit h Audi pre sense front or A udi
adap tive c ru ise contro l
.,. Select in the MMI: I MENU I button> Systems
control button or Car systems > Driver as­
sistance
> Audi pre sense.
Switching the system on and off
Audi pre sense (System): If the system is
switched off, it switches on again automati­
cally once the ignition is switched on again.
System -Switch Audi pre sense on-off. With
this, you can switch the prewarning and the
braking intervention from Audi pre sense on
or off .
Prewarning -The distance and approach
warnings can be switched
on/off.
(D Tips
- If you restrict or switch off the ESC, the
pre sense also switches itself
off
¢ page 187.
-Switch the pre sense off when you a re
loading the vehicle onto a vehicle carrier,
train, ship or other type of transporta­
tion. This can prevent undesired warn­
ings from the pre sense system.
Driver messages
Applies to vehicles: wit h Audi pre sense o r A udi ada ptive
cruise co ntrol
Audi pre sense currently unavailable. No sen­
sor vision
This message appears if the sensor view is ob­
structed, for example by leaves, snow, heavy .,.

Switching on and off
Applies to vehicles: with Audi active lane assist
•
Fig. 81 Turn signal lever: butto n for act ive la n e ass ist
Fig. 82 Windsh ield: ca mera w indow for act ive lane as ­
s is t
.. Press the~ fig. 81 button to switch the sys­
tem on and off. The . or. indicator light
in the instr ument cluster turns on or off.
Indicator lights
• Ready:
The indicator light turns on when
the system is ready for use. The system can
now be operated .
• Not Ready : The indica tor light turns on if
the system is switched on but is inoperable.
This may be due to the following reasons:
- There is no lane boundary line.
- The relevant lane marker lines are not de-
tected (for example, markings in a construc­
tion zone or because they are obstructed by
snow, dirt, water or light ing) .
- The vehicle speed is below the activation
speed of approximately 40 mph (65 km/h)
(the speed may vary depending on your
country) .
- The lane is narrower than 8
ft (2 .5 m) or
wider than 18
ft (5.5 m).
- The curve is too narrow.
Audi active lane assist 95
-The driver's hands are not on the steering
wheel.
a) Tips
- Make sure the camera's field of view
~ fig. 82 is not obstructed by stickers or
other objects. For information on clean ­
ing, see¢
page 201 .
-Market-specific: In certain countries: If
the system is switched on, it wi ll remain
operab le each time the ignition is switch­
ed on.
lane assist display in the instrument
cluster
Applies to vehicles: with Audi active lane assist
Fig. 83 Ins trumen t cluster: monoc hrome d ispl ay
Fig. 84 Instrume nt clust er: mult icolored d isp lay
The lane assist display can be called up using
the buttons in the
multifunction steering
wheel* ¢
page 27.
Monochrome display
Refer to ~ fig. 83

100 Audi side assist
-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.
- Side assist cannot detect all vehicles un­
der 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.
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 quali­
fied repair facility check their function.
(D Tips
-If the window glass in the driver's door
or front passenger's door has been tint­
ed, the display in the exterior mirror may
be misinterpreted.
- For Declaration of Compliance to United
States FCC and Industry Canada regula­
tions, see
9 page 271.
Switching on and off
Applies to vehicles : wi th Audi side ass ist
The system and be switched on and off in the
MMI.
"'Select: !MENUI button> Systems control
button or
Car systems > Driver assistance >
Audi side assist. With off, the system is
switched off.
An activated system will signal every time the ignition is switched on by turning the displays
in the exterior mirrors on briefly.
Adjusting the display brightness
App lies to vehicles: wi th Audi s ide ass ist
The brightness can be adjusted in the MMI.
"'Selec t: !ME NUI button> Systems control
button or
Car systems > Driver assistance >
Audi side assist .
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 dis­
play is already set to the minimum or maxi­
mum level by the automatic adjustment. In
such cases, you may notice no change when
adjusting the brightness, or the change may
only be noticeable once the surroundings
change.
Adjust the brightness to a level where the dis­
play in the information stage will not disrupt
your view forward. If you change the bright­
ness, the display in the exterior mirror will
briefly show the brightness level in the infor­
mation stage. The brightness of the warning
stage is linked to the brightness in the infor ­
mation stage and is adjusted along with the
information stage adjustment.
(D Tips
- Side assist is not active while you are
making the adjustment.
- Your settings are automatically stored
and assigned to the remote control key
being used.

Automatic
transmission S tronic-transmission
Introduction
Applies to vehicles: with S tronic transmiss ion
Your vehicle is equipped with an electronical­
l y -controlled DSG transmission called S tronic.
T wo independent clutches transfer the power
between the engine and transmission. It al­
lows the vehicle to accelerate without a no­
ticeable interruption in traction .
T he transmission upshifts or downshifts auto­
matically. The driving style continuously influ­
ences the selection of the driving program .
When a
moderate driving style is used, the
transmission selects the most econom ica l
driving mode. The transmission upshifts at a
lower RPM and downshifts at a higher RPM to
improve fuel effic iency .
T he transmission switches to a sporty mode
after a kick-down or when the driver uses a
sporty driving style characterized by quick ac­
celerator pedal movements, heavy accelera­
tion, frequent changes in speed and traveling
at the maximum speed.
If desired, the driver can also select the gears
manually (tiptronic mode) r=> page 110,
Shifting manually (tiptronic mode) .
Selector lever positions
Applies to vehicles: with S tro nic transmission
Fig. 91 Instrument cluster: selector leve r positions
The instrument cluster display shows the cur­
rent selector lever position and current gear .
Automatic transmission 105
P -Park
The wheels are mechanically locked in this po­
sition. You can only shift into Park when the
vehicle is
stationary r=> &..
To shift in and out of the P selector lever posi­
tion, press the interlock button in the selector
lever
while pressing the brake peda l.
R- Reverse
Only shift into reverse gear when the vehicle is
stationary and the engine is running at idle
speed
r=> &. .
To select the R selector lever position, press
the interlock button
while press ing the brake
pedal. The back-up lights sw itch on in the R
pos ition if the ignition is switched on .
N -Neutral
The transm iss ion is in idle in this position .
DIS -Normal position for driving forward
In the D/S selector lever position , the trans ­
mission can be operated either in the normal
D mode or in the S sport mode. To select the S
spor t mode, pull the selector lever back brief­
ly. Pulling the lever back again will select the
normal D mode . The instrument cluster dis­
play shows the selected driving mode.
In the
normal mode D, the transmission auto­
matically selects the suitable gear ratio . It de­
pends on engine load, vehicle speed and driv­
ing style .
Select the
sport mode S for sporty driving .
The vehicle makes full use of the eng ine's
power. Shift ing may become noticeable when
acce lerat ing.
To move from selector lever position N to D,
you must press the brake pedal and the vehi­ cle must be traveling less than 1 mph (2 km/
h) or be stationary~ &.-
.&_ WARNING
Read and follow all WARNINGS.
- The vehicle can roll even if the ignition is
switched off. ...
.__ _____________ __J ....
•