2018 AUDI A3 SEDAN fuel

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recommend roof racks and attachments from
the Audi Genuine Accessories program.
- When installing the roof rack, make sure that it
is mounted on ly at the designated points on
the roof ¢
fig. 79 or ¢ fig. 80.
-Note the permitted axle load, permitted tota l
weight, and permitted roof load of your vehicle
¢
page 382 . The roof load is the tota l of the
weight of the roof rack, the attachments and
the cargo you are carrying. However, you must also note the permitted load of the carr ier sys­
tem being used .
A WARNING
-Follow the installat io n instructions provided
with the roof rack system. If you do not se­
cur e the roof ra ck sys tem and objec ts on the
roof correctly, they co uld come loose from
the vehi cle and cause an accident.
- T he ris k of an a cc ident i ncreases when using
a roof rack system, because it changes the
driving characteristics by shifting the center
of gravity and/or the increasing the s urface
area exposed to wind. You may need to
adapt your driv ing style and speed to the
current conditions.
@ Note
- If you use other roof luggage rac k systems
or do not insta ll the racks as intended, any
damage to the ve hicle is not cove red by the
warranty. Carefully follow the assembly and i nsta llation instruct ions included with the
r oof rack car rier system .
- Make sure t hat the luggage compartment
l id and the pa norama glass
roof* do not
come into contact with objects on the roof
whe n they are ope n.
@) For the sake of the environment
Your veh icle w ill req uir e more fuel due to the
increased wi nd resistance. So remove th e roof
rac k after using it.
Seat s and sto rag e
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Warm and cold
Warm and cold Climate control system
Description
The climate control system circulates , warms or
coo ls, and removes humid ity from the air in the
veh icle interior . It is the most effective when the
windows and panorama g lass roof* or power top*
are closed. If there is a build-up of heat inside
the vehicle, ventilation can help to speed up the
coo ling process.
Pollutant filter
The pollutant filter removes pollutants such as
dust and po llen from the air.
Key recognition
Various sett ings are stored and ass igned to the
remote control key being used.
These settings are different when the power top* is open or closed .
Presetting
Several functions can be preset in the Infotain­
ment system.
Select in the Infotainment system:
IMENU ! but­
ton
> Vehicle > left control button > Air condi­
tioning
A WARNING
Poor visibility can lead to accidents.
- For safer driving, keep all windows free of
ice, snow and fog.
- Become familiar with the correct use and
function of the climate control system as
quickly as poss ible, espec ia lly with the de­
frosting and defogging functions.
- When the temperature is below freezing, only use the windsh ield washer system after
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the windshield has been warmed by the cli­
mate control system. The washer fluid could
freeze on the windshie ld and impair visib ili­
ty .
@ Note
-If you suspect that the climate contro l sys­
tem is damaged, switch the system off to
prevent further damage and have it checked
by an authorized Aud i dealer or authorized
Audi Serv ice Facility.
- Repa irs to the Aud i climate control system
require special technical knowledge and
special tools . See an authorized Aud i dealer
o r authorized Aud i Serv ice Facility .
@ For the sake of the environment
-To save fuel, turn off the climate control
system cooling mode by press ing the A/C
button. This w ill also reduce emissions . The
climate control system is off when the LED
in the button turns off.
- In vehicl es w ith the efficie ncy prog ram*,
yo u can find other consumpt ion information
and more economy tips ¢ page 19.
© Tips
- To prevent int erference with the heat ing
and cooling output and to prevent the win­
dows from fogging over, the air intake in
front of the windshie ld must be free of ice,
snow or leaves.
- Condensation from the cooling system* can
drip and form a pudd le of water under the
vehicle . This is normal and does not mean
there is a leak.
- Th e energy management system may tem ­
porarily switc h off certain functions, such as
the seat heating* or rear window defogger.
These systems are ava ilable again as soon
as the energy supply has been restored.

Warm and cold
Automatic climate control system
Applies to: ve hicles with a utomat ic climate contro l system
Pressing AUTO button and setting the temperature to 72 °F (22 °C) is recommended.
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Fig. 8 1 Automatic climate control system: controls (example)
The funct ions can be switched on and off by
pressing the buttons or adjusted by turning the
knob. The LED in a button w ill light up when the
f u nction is switched on.
Automatic climate cont rol system
The automat ic climate control system automati­
cally maintains a temperature once it has been
set . In all heat ing mode funct ions except
defrost,
the blower on ly switches to a higher speed once
the eng ine coolant has reached a certain temper­
ature.
AUTO
Switching aut omatic mode or "ec o"
mode * on and off
Automatic mode ma inta ins a constant tempera­
ture ins ide the veh icle. Air tempe rature, airflow
and a ir distribution are controlled a utomatically.
AUTO mode switches off once a b utton in the cli­
mate control system is pressed.
When a utomat ic mode is act ive, pressing the
AUTO b utton briefly activa tes the
" E co" mode*1l.
In "eco" mode *, all sett ings are lowered slight ly
to save fuel. When in
"eco" mode*, Eco is shown
8 1l This fu nct ion is not available in every market and is not N ii'i available for the plug- in hybr id.
in the display. To ex it "Eco" mode*, press the
AUTO button aga in.
A/C
cooling mod e
The cooling mode on ly functions with the blower
turned on. You can turn the cooling system on or
off by pressing the A/C button. The air is not
cooled and humidity is not removed when cooling
mode is switched off. This can cause fog on the
windows . The cooling mode sw itches off auto­
matically when there are cold outside tempera­
tu res.
e / e Temperature
The temperature for the driver's and front pas­
senger's s ide can be adjusted separately with the
dials
(D I@ . Tempera tures between 60 °F
(+16 °() and 84 °F (+28 °() ca n be set. If outside
of this range,
LO or HI w ill appea r in the climate
contro l system display. In both settings, the cli­
mate contro l runs constant ly at the maxim um
cooling or heating level. The temperature is not
regulated.
S ynchr oniza tion : by pressing the AU TO butto n
for two seconds, the temperature setting for the
..,.
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-Avoid dr iving throu gh salt wat er, because
th is can ca use corros io n.
Economical and environmentally-friendly
driving
The amount of fue l cons umption, t he e nvir on­
men tal impac t an d the wea r to the engine,
b rak es and t ires depen ds mos tly on yo ur dr iv ing
s tyle. W it h an anticipatory and econom ic dr iv ing
s tyle, f uel consum ption can be re du ced by ap­
p roximate ly 1 0-15% . The followi ng tips will help
you conse rve the environment and you r money at
the same time .
Anticipatory driving
A vehicle uses the mos t fu el when a ccele ra tin g.
W hen yo u dr ive wi th a ntici pat ion, you do not
need to brake as ofte n an d so yo u acceler ate less .
W hen possi ble, let your vehi cle coast w it h a
gear
engaged ,
for example when you notice that the
next tra ffic light is red . This p roduces an engine
b raking effect, wh ich helps to protect the brakes
a n d tires a nd reduces t he emissions a nd f uel con­
sumpt io n to zero (fuel shut-off dur ing decelera­
tion) .
Shift efficiently
Upshift ing earlier is an effective way to save fue l.
Staying in a gear too long uses fue l unnecessari­
l y .
Press down on the acce le rato r peda l slowly and
avoid "k ic k-dow n".
Avoid full acceleration
You s hould rare ly tr ave l a t t he m axim um ve hicle
speed . High speeds cause a d isp roportionately
h ig h inc rease in fuel consumption, emissions an d
traffic no ise . Slower driving saves fuel.
Reduce idling time
T h e St art /S top system * he lps t o redu ce the i dlin g
time autom atically . In vehicles wi tho ut the Start /
Sto p system, it is eff ic ient to sw itch t he engine
off w hen stopped at ra ilroad cross ings a nd long
red lights . Depending on t he ve rsion of the en­
g ine, stopping the eng ine for as litt le as five sec­
onds once it has reached ope rat ing tempe rature
Driving
st ill saves mo re fue l th an leav ing t he en gine run ­
ning -even when taking into acco unt the amount
of ext ra fuel t hat is use d to restart t he e ngi ne.
It tak es a ve ry long time in idl e to warm the en ­
gine up to o peratin g tem perature . Wear an d
emissions are especially high in the warm -up
phase. The refore, you s hould begin drivi ng im ­
med iate ly after starting the eng ine. Avoid h igh
RPMs wh ile doing this.
Have maintenance performed regularly
By hav ing maintenance pe rformed reg ularly o n
yo ur vehicle, you can help to reduce fue l con ­
s u mption before you even sta rt to drive. The
maintenance cond ition of your vehicle not on ly
affects traffic safety and long-term va lue b ut al­
so impacts
fuel consumption . A poorly ma in­
ta ined engi ne ca n lead to fue l co nsump tion that
i s 1 0% hig her th an no rmal.
Avoid short trips
The eng ine and emissions contro l system must
r each their optima l
operating temperature to ef­
fec tively reduce consump tion and emissions .
A cold engine uses a disp roportionately high
amount of fue l. The e ngine reac hes operat ing
temperat ure and cons umption no rma lizes on ly
after app roxima tely 2 .5 m iles (4 km).
Check the tire pressure
To save f ue l, ma ke sure the ti res are always i n­
f lated to t he correct press ure
c> page 339. The
fuel consumpt io n can increase by 5% if the pres­
s ur e is on ly 0 .5 bar too low . Due to t he increased
r oll ing resis tance, low tire pressures w ill also
l ead to greate r tire
wear an d will affect dr iving
behav ior.
Do not d rive on
winter tires year- ro und , as this
will consume u p to 10% more f uel.
Eliminate unnecessary weight
S ince eve ry pou nd of ext ra weight inc reases fuel
consumption, a quick inspect io n of the luggage
compartment may be wo rth it to avoid un neces-
sary we ight .
..,.
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Driving
When not being used, a roof rack should be re­
moved to decrease the wind resistance of the ve­
hicle. This will save you approximately 12% fuel
at speeds from 62
-75 mph (100 -120 km/h).
Save energy
The engine drives the generator, which generates
electricity; the fuel consumption also increases
with the demand for electricity. Therefore, switch
electrical equipment
off when you no longer
need it. Examples of equipment that uses a lot of
energy are air blowers at a high setting, the rear
window defogger and seat heating* .
(D Note
-Do not leave engine idling unattended after
starting. If warning lights should come on
to indicate improper operation, they would
go unheeded. Extended idling also produces
heat, which could result in overheating or
other damage to the vehicle or other prop­ erty.
- Have your vehicle maintained properly and
in accordance with the service recommenda­
tions in your Warranty
& Maintenance book­
let . Lack of proper maintenance as well as
improper use of the vehicle will impair the
function of the emission control system and
could lead to damage.
- Do not alter or remove any component of
the Emission Control System unless ap­
proved by the manufacturer.
- Do not alter or remove any device, such as
heat shields, switches, ignition wires,
valves, which are designed to protect your
vehicle's Emission Control System and other
important vehicle components.
@ Tips
The consumpt ion estimates as published by
ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the
road, which will vary depending upon vehicle
load and speed, road and weather conditions,
trip length, etc.
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Steering
Adjusting the steering wheel position
The steering wheel position is fully adjustable up
and down and forward and back.
Fig . 83 Steering column : steering column adjustment lever
.. Tilt the lever -c> fig. 83 downward¢ ,&..
.. Bring the steering wheel into the desired posi­
tion.
.. Push the lever against the steering column un­
til it is secure.
A WARNING
Incorrect use of the steering wheel adjust­
ment and an incorrect seating position can
cause serious injuries.
- Only adjust the steering column when the veh icle is stationary so that you do not lose
control of the vehicle.
-
-Adjust the driver's seat or steer ing wheel so
that there is at least 10 inches
(25 cm) dis­
tance between your chest and the steering
wheelr::!>page250, fig. 217. If you do not
maintain this distance, the airbag system
will not be able to provide its full protec­ tion.
c:> page 250, fig. 217.
- If your physical characteristics prevent you
from sitting at least 10 inches
(25 cm) or
more away from the steering wheel, see if
an authorized Audi dealer or authorized
Audi Service Facility can provide adapters that will help.
- If your face is level with the steering wheel,
the airbag does not provide as much protec­
tion during a collision. Always make sure
that the steering wheel is level with your
chest.

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Starting the engine
when there is a
malfunction
Applies to: vehicles with conven ience key
It may not be possible to start the engine under
certain circumstances, for example, if the bat ­
tery in the vehicle key is drained, if interference is
affecting the key or if there is o system mo/func­
tion.
Fig. 86 Steering col umn/remote co ntro l key: starting the
eng ine if there is
a malfunction
As long as the message II Key not recognized.
See owner's manual or
II Remote control key:
hold back of key against the designated area.
See owner's manual
appears, you can start the
vehicle with the emergency starting function .
.. Press the brake pedal.
.. Hold the master key in the location indicated in
the illustration
y>l) c> fig. 86.
.. Press the I START ENGINE STOPI button c> .& in
Starting the engine on page
77 . The engine will
start.
.,. Drive to an authorized Audi dealer or author­
ized Audi Service Facility immediately to have
the malfunction corrected.
@ Tips
You can display the message that appears
during an emergency by pressing the
!START ENGINE STOPI button.
l) Market -spe cific
Driving
Start/Stop system
Description
Applies to: vehicles wit h Start/Stop system
The Start/Stop system can help increase fuel
economy and reduce CO2 emissions.
In Start/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 w ill restart
automat ically when needed.
The Start/Stop system is automatically 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.
(D Note
Always switch the Start/Stop system off when
driving through water
c> page 81.
(D Tips
The engine stops shortly before the vehicle
comes to a stop
ll. The full function of the
brake booster and the power steering is still
available.
Stopping/starting the engine
Applies to: vehicles with Start/Stop system
Fig. 87 Instrument cluster: eng ine switched off (stop
phase)
79

selector lever position is engaged. As soon as
you press the accelerator pedal, the parking brake releases automatically and your vehicle
starts to move
¢ page 83.
(D Tips
- Occasional noises when the parking brake is
set and re leased are normal and are not a
cause for concern.
- The parking brake goes through a self-test
cycle at regular intervals when the vehicle is
stopped. 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 an authorized
Audi dealer or authorized Audi Service Fa­
cility for assistance .
Starting from a stop
Various convenience and safety functions may be
available when the vehicle begins driving, de­
pending on vehicle equipment.
Starting on hills with the parking 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 automatically until the wheels build up
enough driving force .
Starting on hills with hill hold assist
Hill hold assist makes it easier to start on hills.
Requirement: the driver's door must be closed
and the engine must be running.
~ To activate hill hold assist, press and hold the
brake pedal for several seconds. The vehicle
must be in an uphill direction of travel.
After releasing the brake pedal, the braking pow­
er is maintained for a brief
moment ¢.&. to pre­
vent the vehicle from rolling back when starting.
::li During this time, you can eas ily beg in to move .-<
~ your vehicle.
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Driving
A WARNING ,-
Applies to: ve hicles with h ill ho ld assist
- If you do not begin driving immediately or
the engine stalls after releasing the brake
pedal, your veh icle may begin to roll back ­
ward. Press the brake pedal or set the park­
ing brake immediately.
- The intelligent technology of hill hold assist
cannot overcome the limitations imposed by
natural physical laws. The increased comfort
offered by hill hold assist should not cause
you to take safety risks.
- Hill hold assist cannot hold the vehicle in
place on all hills (for example, if the ground
is slippery or icy).
- To reduce the risk of an accident, always
make sure the vehicle is situated safely
while stationary.
Automatic transmission
Introduction
Applies to: vehicles with automatic transmiss ions
T he automatic transmission is controlled elec­
tronically . Upshifting and downshifting occur au­
tomatically.
When a
moderate driving style is used, the
transm ission selects the most economica l dr iv ing
mode. The transmission upshifts at a lower RPM
and downshifts at a higher RPM to improve fuel
efficiency.
In the "S" selector lever position, the transm is­
sion switches to a sporty mode after a kick-down
or when the driver uses a
sporty driving style
characterized by quick accelerator pedal move­
ments, heavy acce leration, frequent changes in
speed and traveling at the maximum speed.
If desired, the driver can also select the gears
manually (tiptronic mode) ¢ page 88, Manual
shifting (tiptronic mode).
The S tronic is a dual-clutch transmission. Power
is transferred using two clutches that work inde­
pendently from one another. They replace the
torque converter used in conventional automatic
.,.
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injuries. When the vehicle enters drive ready
mode, the status message
e-no"' ~... ap­
pears briefly in the instrument cluster display
and the needle in the power meter points to
READY ¢ page 9 5.
-Make sure that the selector lever is in the P
position and the ignition is switched off
when leaving the vehicle.
@ Note
-The high-voltage system can be damaged if
the vehicle underbody comes into contact
with the ground . Immediately drive your ve­
hicle to an authorized repair facility and
have it inspected.
- The electric drive motor can become very
hot during operation . Do not stop the vehi­
cle if there is oil, fuel residue or other flam­
mable substances under or next to the vehi­
cle.
Special considerations for the high-voltage
battery
Applies to: vehicles with plug-in hybrid drive
Please first read and note the introductory infor­
mation and heed the warnings
¢page 92.
All batteries age with use and over time. There
are things you should know about the care of the
high voltage battery that will help it keep giving
you good service and reliability over time. Please
read and keep the following information in mind
while you enjoy the performance and economy of
your vehicle.
- Be sure to charge the high voltage battery be­
fore leaving the vehicle parked and unused for a longer period of time. Ideally the high-voltage
battery should have a charge level between
40 % and 60 % when parked for a long t ime .
- If the battery charge level is below 3 %, never
park the vehicle for more than 21 days without
charging the high-voltage battery. Should you
have to park the vehicle for a long time, make
sure that the charge level is sufficient to help
prevent the battery from aging prematurely.
- Frequent and consecutive charging of the high­
voltage battery when the charge level is above
e-tron
98 % can also decrease the capacity of the
high-voltage battery. Make sure the charge lev ­
el is be low 98 % when you start the charging
process.
- Should the vehicle be parked for longer than
2 days at temperatures below -13 °F ( -25 °C),
the high-voltage battery could free ze and not
be able to provide energy to the electric motor.
The battery will start working again, once it
warms up . The battery can be warmed up when
the outside temperature rises or when the vehi­
cle is garaged appropriately. The battery will al­
so warm up when being used (sw itching on the
air conditioner, the heater or by driving the ve­
hicle) . Should you have to park your vehicle at
very low temperatures for longer than 1 day,
make sure that the high-voltage battery does
not freeze by parking the vehicle in a garage
that is heated or protected from the outside
temperature.
- The high-voltage battery can be damaged and
the capacity can be decreased when the vehicle
is parked for longer than 24 hours when the
ambient temperature is higher than 118 °F
(48 °C). Always make sure that the h igh-volt­
age battery is not exposed to temperatures
above 118 °F (48 °C) for a long time.
- Never park the veh icle in areas that are lik ely to
be flooded, such as beaches or river banks, and
never drive the vehicle in WA TER, on flooded
roads or through water that is higher than the
bottom of the vehicle body. The high-voltage
battery, along with other vehicle components,
can be damaged severely if the high-voltage battery is exposed to open water especially for
a longer time. However, you can drive through
water on roads under certain conditions
~ page 72.
Failure to heed any of these requirements can
age the battery prematurely and lead to a perma­
nent decrease of the high-vo ltage battery's ca­
pacity.
(D Tips
Always make sure that the high-voltage bat­
tery is not exposed to extremely low and high
temperatures as well as to water espec ially
for a longer time. Failure to protect and care
93