2018 AUDI A3 SEDAN engine

Replacing the remote control key battery
.,. Pry the cover@off of the key (Dusing a coin
¢fig.17.
... Insert the new battery with the" +" facing up.
... Press the cover back onto the key until it clicks
into place .
@) For the sake of the environment
Discharged batteries must be disposed of
us·
ing methods that will not harm the env iron ­
ment. Do not dispose of them in household
trash.
(D Tips
The replacement battery must meet the same
specif ications as the original battery in the re­
mote control key .
Synchronizing the remote control key
The remote control key must be synchronized if
the vehicle does not lock/unlock with the remote
control.
... Press the remote control key button [:@:].
.,. Insert the key in the driver's door lock within 30
seconds c::> page 36 .
.,. Press the ~ button or~ button .
Unlocking/locking with remote control
F ig . 18 Re mote cont ro l key or convenience key : b utto n pro ­
g ram ming
.,. To unlock the vehicle, press the@ button (D
c::> fig. 18.
~ ... To lock the veh icle, press the {f) button @c::> A
.... N once .
" ~ ... To unlock the luggage compartment lid, press 0
~ the e:5 button @ briefly . co
Opening and closing
.,. To open* the luggage compartment lid, press
and hold the
e:5 button @for at least one sec­
ond.
... To trigger the a larm, press the ! PANIC I button
@ . The vehicle horn and emergency flashers
are activated .
.,. To turn off the alarm, press the I PANIC I button
@again .
If you unlock the veh icle and do not open any of
the doors, the hood, or the luggage compart ·
ment l id within 45 seconds, the vehicle automati·
cally locks again. This feature prevents the vehi·
cle from being accidentally left unlocked over a
long period of time. This does not apply if you
press and hold
the~ button @for at least one
second .
You can select in the Infotainment system if the
entire vehicle or only the driver's door should un­
locking when unlocking the
vehicle¢ page 35.
_&. WARNING
-Read and following all warnings c::> & in De·
scription on page 31 .
(D Tips
- Only use the remote control key when you
are within view of the vehicle .
- Th e vehicle can only be loc ked when these­
lector lever is in the P position.
- Do not use the remote con trol when you are
inside the vehicle. Otherwise, you could un­
intentionally lock the vehicle. If you then
tried to start the engine or open a door, the
alarm would be triggered. If this happens,
press the
III unlock button.
- Only use the panic function in an emergen­
cy.
33

Opening and clo sin g
® Central switc h* for opening or closing all side
windows at the same t ime
A WARNING
- If you leave the vehicle, switch the ignit ion
off and take the vehicle key with you . This
applies particularly when children remain in
the vehicle. Otherwise the children could
start the engine or operate electr ical equip­
ment such as power windows.
- Pay careful attention when closing the win ­
dows . Pinching could cause serious injuries.
- When locking the vehicle from outside, the
vehicle must be unoccupied since the win­ dows can no longer be opened in an emer­
gency .
@ Tips
After turning the ignition off you can still
open and close the windows for approximate-
ly 10 seconds. The power w indows do not
sw itch off until the dr iver's door or front pas­
senger's door has been opened.
Convenience opening/closing
App lies to: ve hicles w ith conve nience opening/clos ing
All of the windows and the panorama glass roof*
can be opened/closed at the same time.
For power top conven ience opening/closing, refer
to the information in
Q page 43 .
Convenience opening feature
.. Press and hold the open button Im on the re­
mote con trol key until all w indows and the pan­
orama glass roof* have reached the desired po ­
s ition . Or
.,. Hold t he key in the d river's door lock unt il all
windows and the panorama g lass roof* have
reached the desired pos ition.
Convenience closing feature
.. Press the Im button on the remote control key
u nt il all windows and the panorama glass roof *
are closed
¢ _&.. . Or
.,. Applies to: vehicles wi th conven ience key: touch
the sensor on one of the fro nt door hand les and
continue touching it until a ll of the w indows
40
and the panorama glass roof* are closed . Do
not p lace your hand in th e door hand le when
doing this.
.. Ho ld the key in the dr iver 's door lock in the lock
position unti l all windows and the panorama
glass roof* are closed
¢ _&.. .
The funct ion can be switched on/off in the Info­
ta inment system
Q page 35.
A WARNING
- Never close the w indows or panorama glass
roof* ca relessly or in an uncontrolled man ­
ne r, because this increases the risk of in jury.
- For secur ity reasons, the windows and the
panorama g lass roof* can only be opened
and closed with the remote control key at a
maxim um distance of app roximately 6.5
feet (2 m) away from the vehicle . Always
pay atten tion when using
t he ~ button to
close the windows and the panorama g lass
roof* so that no one is pi nched. The closing
process w ill stop immediately when
the ~
button is re leased.
Correcting power window malfunctions
You can reactivate the one-touch up/down func­
tion if it malfunctions.
.. Pull the power wi ndow switch until the window
is completely raised .
.. Release the sw itch and pu ll it up again for at
least one second .
Panorama glass roof
Description
Applies to: vehicles with panorama glass roof
Fig. 31 Sect ion o f headl iner: pan orama glass roof button IJ,>

LL co .... N
" N .... 0 N > co
-Visibility to the r ear is limited when operat­
ing the power top. Avoid operating the top
while driving in reverse .
(D Note
-To prevent damage to the power top:
- do not store any objects in the power top
storage compartment .
- make sure there is enough space above
the vehicle when opening or closing the
power top .
- To reduce the risk of damage, make sure
there are no sensit ive objects in the power
top storage compartment's range of
mo­
tion.
(D Tips
- To prevent the vehicle battery from draining unnecessari ly, do not open or close the
pow­
er top repeatedly when the engine is switch­
ed off.
- A message will appear in the instrument cluster if there is a malfunction in the power
top
¢ page 44 .
-The powe r top can also be operated manual­
l y temporari ly if there is a malfunction
¢ page 46, Power top emergency opera­
tion .
An authorized A udi dealer or author­
ized Audi Service Facility should diagnose
and correct the cause of the ma lfunction as
soon as possible.
- If the vehicle is parked with the power top
open, the vehicle interior is not protected
from damaging weather or unauthorized ac­
cess. lock any items you leave behind in the
luggage compartment. Close the power top
before leaving the vehicle .
- The side windows automat ically lower
slight ly when opening or closing the power
top .
Powe r top
Power top convenience opening/closing
Applies to : veh icles w it h power top
Fig. 33 Turnin g the key to open and close
Conven ien ce opening with the dri ver do or
lock
.,. Turn the key once in the driver door lock to the
open ing position
@ ¢fig . 33 .
.,. Tur n the key to the opening position again
within tw o second s and hold it there until the
power top opens comple tely .
Conven ienc e closing with the driver door lock
.,. Turn the key once in the driver door lock to the
clos ing position @¢
fig. 33.
"Tu rn the key to the closing position again w it h­
in two se co nd s and hold it there until the pow­
er top closes completely.
Releasing the key stops the opening or clos ing
process
immediat ely .
.&_ WARNING
Read and follow the important safety pre ca u­
tions
¢ & in Opening/closing the power top
on page 42.
43

Warm and cold
driver 's side is transferred to the front passeng ­
er's side. This applies a temperature change to
the front passenger 's side .
8/r Blower
Using the regu lator 8f?, you ca n manually adjust
the vo lume of a ir generated by the blower to your
p reference . The blowe r shou ld always run at a
low setting to prevent the windows from fogging
and to ensure a continuous exchange of air inside
t he vehicle . To h ave the blower regu lated au to­
mat ically , press the AUTO button.
~/ :01 ~ Air distribution
The air distribution can adjusted with t he but ­
tons. To have the air distribution regulated auto­ matica lly, press the AU TO button.
The round air vents in t he cockpit are adjustable
q page 71 .
To keep the front s ide windows from fogging up
in damp weathe r, we recommend opening the
side air vents and tilting them to the side .
Foot vents are located under the front seats and
adjustab le vents o n the end of t he center console
t o heat the re ar of the vehicle .
3fx Defrosting
The windshield and s ide windows are defrosted
or cleared of condensation as qu ickly as possible .
The max imum amo unt of air flows ma inly from
the vents below the w indshield. Recircu lation
mode switches off. The temper ature s hou ld be
set at +72°F (22°() or higher. The temperat ure is
controlled automatica lly. In the
;Ix setting, the
A/C cooling mode switches on a utomatically , de­
pending on the outside air temperature.
The A UTO button switches the defroster off.
~ Recirculation mode
The recircu lation mode can be turned on manua l­
ly or automat ica lly*.
- Swi tc h ing man ua l rec irculat ion mode on and
off: press
t h e ~ button .
70
-Automatic * reci rcu lat ion mode : auto recircula ­
tion needs to be activated in the Infotainment
system. Se lect in the Infotainment system:
I MENU I button > Veh icle > left control button >
Air cond itioning > Aut o recircul ation
The air
quality sensor that is designed for d iesel and
gasoline exhaust automatically sw itches the re­
circulation mode on or off depending on the level of pollutants in the o utside air.
In rec irculat ion mode, the air inside the vehicle is
c ir culated and filte red . T his prevents the unfil­
te red air outs ide t he ve hicle from enteri ng the
vehicle inte rior. Switching rec irculat io n mode on
whe n driving throug h a tu nnel o r whe n sitting in
traffic is recommended
q & .
Pressing the~ button, A UTO o r the ;Ix button
switches recirculation mode off .
T he system switches to recirculation mode when
driv ing in reverse when the engine is cold .
SP. Rear window defogger
If the rear window defogger is act ivated when
the ignit ion is swi tched on, the battery manage­
ment determines based on the battery charge if
i t is possible to turn on . Otherwise, the rear w in ­
dow defogger funct ions w it h the eng ine runni ng
and switches off automat ically after approxi­
mately 1 0 - 20 m inutes, depending on the out­
s ide temperat ure.
To p reve nt the rear window defogger from
switching off automat ica lly, press and hold the
!fP. button for more tha n two seconds. This re ­
mai ns sto red up to approxim ate ly lS m in utes af ­
te r turning off the ignition.
J Seat heating*
P ressing the J button switches the seat heat ing
o n at t he hi ghest sett ing (level 3) . The L EDs ind i­
c a te the temperat ure level. To reduce the tem ­
per atu re , press t he button again . T o swi tc h t he
seat heating off, press the bu tton repeatedly un­
ti l the LED turns off .
After approximate ly 10 m inu tes, the sea t heat ing
a utomat ic all y switches from leve l 3 to leve l 2.
..,_

Drivin g
Driving
General information
Breaking in
A new vehicle must be broken in for the first 1,000 mi les (1,500 km). Do not dr ive at speeds
t hat will exceed 2/3 of the max imum pe rm itted
engine speed (RPM) for the first 600 miles
(1,000 km), and avoid fu ll acceleration during
this period . You may gradually start increasing
the RPM and the speed between 600 miles (1,000 km) and 1,000 miles (1,500 km) .
During the first hours of use, the engine has a
higher internal friction than later on when all
moving parts have settled into place with each
other.
How the vehicle is driven d uring the first 1,000
miles (1 ,500 km) a lso affects the engine quality .
Drive at moderate engine speeds after the initial
break-in per iod, part icu larly when running a cold
eng ine . Th is will reduce eng ine wear and improve
the m ileage .
Do not drive at too
low of an engine speed (RPM).
Shift down if the engine stops running "smooth­ ly". Extremely high eng ine speeds are automati­
cally reduced .
Reducing the risk of vehicle damage
@ Note
When driving on poo r roads, by cu rbs and on
s teep ramps, make su re t hat low-hang ing
compone nts such as the spo ile r and exha ust
system do not come into contact with these
or they could be damaged. This especially ap ­
plies to vehicles with low ground clearance
and veh icles that are heavily loaded.
Warming up/cooling down
Applies to: RS models
By warming up/cooling down the engine carefu l­
ly, you can help reduce unnecessary stra in o n
your veh icle when driving in a sporty sty le .
72
The tires only reach t heir full road ho ld ing capa ­
bility once they have warmed up under load.
Yo ur vehicle also has an afte r-run cooli ng fea ­
tu re . Howeve r, cooling down is st ill import ant.
The eng ine and t he brakes as we ll as the exhaust
system and the transmission become very hot
when driving in a sporty style. Before you shut
the veh icle off, you should cool down the vehicle
by driving a few miles at low speeds with light ac­
ce leration .
Driving through water on roads
Note the following to reduce the risk of veh icle
damage when dr iving throug h wate r, fo r example
o n flooded roads:
-The water must not be any higher than the bot ­
tom of the vehicle body .
-Do not drive faster than walk ing speed .
A WARNING
After driving thro ugh water or m ud, the effec­
tiveness of t he b rakes may be reduced due to
mo istu re o n the bra ke rotors and brake pads.
A few ca reful br ake app lica tions sho uld d ry
off the bra kes and restore the fu ll b raking ef ­
fect.
@ Note
-Vehicle components such as the e ng ine,
t ra nsmiss ion, sus pens io n or elect rical sys ­
tem can be severely damaged by d riving
throug h water.
-Alw ays sw itch the S tart/Stop system* o ff
when driving thro ugh wa ter
r=;, page 79.
(j) Tips
-De ter mine the dep th before dr iving throug h
w ate r.
-Do not stop the vehi cle, d rive in reverse or
switch t he e ngine off whe n driving through
water .
-Keep in mind that o ncom ing vehicles may
c re ate w aves th at r aise the wa ter level and
make i t too deep for yo ur vehicle to drive
throug h safe ly.

u. 00 ... N l'­ N ... 0 N > 00
-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 .
..,.
73

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.
74
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.

-Always hold the steering whee l with your
hands in the 9 o'clock and 3 o'clock posi­
tions to reduce the risk of injury if the airbag
deploys.
- Never hold the steer ing wheel in the 12
o'clock position or with both hands on the
rim or the center of the steer ing wheel.
Holding the steering wheel incorrectly s ig­
nificantly increases the risk of in jury to the
hands, arms and head if t he a irbag dep loys.
Starting and stopping
the engine (vehicles with an ignition lock)
Starting the engine
A pp lies to: ve hicles with ignitio n lock
The ignition is switched on and the engine start­
ed with the key in the ignition .
Fig. 84 Ignit io n lock: posit io n of the ignit io n key
Switching the ignition on /off
• To switch the ign ition on, turn the ign ition key
to posit io n
CI) . Vehicles without the Start/Stop
system*: the needle in the tachometer moves
into the
READY position.
• To switch the ign ition off, turn the ignit io n key
to posit ion @. The needle in the tachometer
moves into the
OFF position .
Starting the engine
• Press the brake pedal and move the se lector
lever to the "P" or "N" position.
• Turn the key briefly to position @. The ignition
~ key automatically returns to position CI) . Do not
~ press the acce lerato r pedal when doing this .
N ..... 0 N > co
Drivi ng
Equipment that uses a lot of e lectricity is switch­
ed off temporarily when you start the engine .
If the engi ne does not start immediately , stop
the starting p rocedure by turning the ign it ion key
to posit ion @ and repeat after 30 seconds .
Start/Stop system*
See the information in Q page 79 , Start/Stop
system.
_&. WARNING
- T o redu ce the r is k of po iso ning, never allow
t he engi ne to run in confined sp aces.
- Never remove the ignition key from the ig ni­
t ion lock while the vehicle is moving. Other ­
wise the steer ing lock will engage and yo u
will not be ab le to steer the vehicle, which
increased the risk of an acc ident.
(D Note
Avo id high engine s peed, fu ll th rottle, and
heavy engine load i f th e e ngine has not
reached operating temperat ure yet . You could
damage the eng ine .
@ For the sake of the environment
Do not let the engine run w hile parked to
warm up. Beg in driving immediate ly . Th is re­
d uces unnecessary emissions.
@ Tips
- If it is d ifficult to turn the key to pos ition
CI) , turn the steering wheel back and forth
slightly to release t he steering whee l lock .
- S ome noise after start ing the e ngine is no r­
ma l and is no cause for co ncern.
Stopping the engine
Applies to: vehicles wi th ignition lock
Stopping the engine
• Bring the vehicle to a full stop .
• Turn the key to position @. The needle in the
tachometer moves into the
OFF pos ition.
Engaging the steering lock
Requireme nt: the se lector lever must be in P .
75