radiator AUDI A3 SEDAN 2018 Owners Manual

Driving
,.. Remove the ignition key in position @
9 page 76, fig. 85 9 ,&..
,.. Turn the steering wheel until you hear the
steering wheel lock.
The locked steering helps prevent vehicle theft.
A WARNING
- Never turn off the engine before the vehicle
has come to a complete stop. The full func­
tion of the brake booster and the power
steering is not guaranteed. You must use more force to turn or brake . Because you
cannot steer and brake as you usually
would, this co uld lead to accidents and seri-
. . . ous mJunes .
-Never remove the ignit ion key from the ign i­
t ion loc k while the vehicle is moving. Other­
wise, the steering lock could suddenly en­
gage and you would not be able to steer the
vehicle.
- If you leave the veh icle, switch the ignit ion
off and take the vehicle key with you. Other­
wise, the engine could be started or electri­
cal equipment such as the power windows
could be operated. This can lead to serious
injury.
- For safety reasons, always park the vehicle
with the selector lever in the P position.
Otherwise, there is the risk that the vehicle
could roll unintentionally .
(D Note
If the engine has been under heavy load for
an extended period of t ime, heat builds up in
the engine compartment after the engine is
switched off and there is a risk of damaging
the engine . For this reason, let the engine run
for at idle
for approximately two minutes be­
fore shutting it
off.
@ Tips
For up to 10 minutes after stopping the en­
gine, the radiator fan may turn on again auto­
matically or it may continue to run (even if
the ignition is sw itched
off) for the following
reasons:
76
- The coolant temperature is increasing due
to trapped heat.
- If the engine is warm and the engine com­
partment also heats up from strong sun­
light.
Starting and stopping
the engine (vehicles with
convenience key)
Starting the engine
App lies to : vehicles wit h co nvenience key
The I START ENGINE STOP I button switches the
ignition on and starts the engine.
Fig. 85 Center conso le: STAR T ENGINE ST OP button
Plug-in hybrid drive*: refer to the information for
start ing the veh icle under
9 page 94.
Starting the engine
.,. Press the brake pedal and move the selector
lever to the "P" or "N" position .
.,. Press the I START ENGIN E STOP I button briefly .
The engine will start.
Equipment that uses a lot of electricity is switch­
ed
off temporarily when you start the engine .
If the engine does not start immediately, stop
the starting procedure by pushing the
I START ENGINE STOP! button again and repeat
after 30 seconds .
Switching the ignition on/off
If you would like to switch the ignition on with­
out starting the engine, follow these steps:
.,. Press the I ST AR T ENGINE ST OP ! button with-
out
pressing the brake pedal. Vehicles without .,,.

LL co ..... N
" N ..... 0 N > co
Removing the charging system from the
charging clip
.,. Remove the power cable connector from the
socket @ .
.,. Unwind the cable from the charging connector
mount (D .
.,. To loosen the control unit from the bracket,
push the lock ing mechan ism @ upward
9fig. 113.
Transporting
Ap plies to: veh icles with plug-in hybrid drive
Fig. 114 Storage bag
.,. Store the charg ing system and the special
charg ing cable* in the bag befo re transporting .
.,. Secure the bag using the tie-downs¢ page 64.
The flat hook must be secured to the left side
of the tie-downs.
& WARNING
-If the vehicle charging cab le is not secured
or positioned correctly, it can slide out of
place and endanger vehicle occupants when
brak ing, when changing directions, or in an
accident.
- Never transport the Audi e-tron charging
system or the special charg ing cable" unse­
cured.
- Store the Audi e-tron charging system or the special charging cable* in the storage
bag in the luggage compartment.
- Always transport the storage bag in the lug­
gage compartment and never in the passen­
ger compartment (for example the seats or
in front of them) .
e-tron
Charging overview
Applies to: vehicles with plug -in hybrid drive
Fig. 115 Charging system : control unit
Fig . 116 Radiator grille: veh icle charg ing port and bu tto n
mod ule
The charging unit is located behind the Audi rings
on the front of the vehicle .
@ ~ Button/LED
® Display field
© Arrow buttons
@IOK I Button
(D Charging timer button
@Status LED
@ Immediate charging button
T he meaning of the different status displays for
the charging sys tem and the vehicle can be found
un der
9 page 112, Status displays.
A WARNING
There is an error in the control unit if the LED
@is red. Disconnect the control unit from the
power supply . Refer to th is chapter
¢page 112, Status displays. llll-
109

e-tron
@ Tips
-The device runs a self test after power has
been restored to the control unit.
- You can activate a PIN for the control unit
¢page 115.
-The vehicle cannot be started if a charging
connector is connected .
Before charging
Applies to: vehicles w ith p lug- in hy brid drive
Fig. 117 Radiator grille: opening the charging unit cover
lll
~;:::;::.::.=;;.;;;:;;: --------- !
Fig. 118 Radiator grille: charging port cap
.. Unlock the veh icle if necessary¢ page 31 .
.. Make sure that the selector lever is in the P po ­
sition and drive ready mode is switched off
¢page 94 .
.. Turn the lock until it is vertical to open the cov­
er on the charging
unit ¢ fig. 117.
.. Slide the cover carefully to the side if necessa­
ry .
.. Remove the lock on the charging port
¢fig. 118.
.. Insert power plug @ or© into the socket
¢page 106, fig. 109 .
ll Not availab le in a ll Infotainment systems.
110
.. Plug the vehicle charging connector ©
¢ page 106, fig. 109 into the vehicle charging
port
¢ fig. 118. The charging process starts au­
tomatically if no charging timer is set.
(D Tips
Remove ice and snow from the cover using a
hand brush and solvent-free deicing spray.
Charging
Applies to: vehicles wit h pl ug -in hybrid drive
You can switch between the immediate charging
@ and charging timer fig. 116 during the charging process if a charging
timer was set . Press the desired button to do this
¢page 109, fig. 116.
You have different charging options:
Immediate charging
To start the charging process immediately, press
the
button @¢ page 109, fig. 116 . The LED in
the button turns on.
Setting the charging timer
You can delay the charging time with the charg­
ing timer in the Infotainment system
1>. You can
set two different timers .
.. If a timer was already set, press the button @
i:!.> page 109, fig. 116. The LED in the button
turns on.
.. To set a charging timer, select: I MENU ! button >
Vehicle > left control button > Charge > right
control button
> Program timer.
.. Select Individual timer or Repeat timer.
.. Set the departure time, the date or day of the
week .
.. You can specify a preferred charging t ime with
the charging timer, for example if you would
like to use the off-peak rate.
.. You can activate the auxiliary air conditioning
with the charging timer while charging by se­ lecting
Air conditioning with the control knob. ..,_

LL co .... N
" N .... 0 N > co
Parking aid
General information
Ap plies to: vehicles with pa rk in g system plus/rearview cam­
era
Depending on your vehicle's equipment, various
parking aids will help you when parking and ma­
neuvering.
The
parking system plus assists you when park­
in g by aud ibly and visua lly indicating objects de­
tected
in front of and behind the veh icle
¢ page 143.
The rearview camera shows the area beh ind the
veh icle in the Infotainment system d isplay. The
l ines in the rearview camera image help you to
park or
maneuver ¢ page 145.
& WARNING
-Always look for traffic and check the area
around your vehicle by looking at it directly
as well. The parking system cannot replace
the driver's attent ion. The driver is always
responsible when enter ing or leaving a park­
ing space and during similar maneuvers.
-Please note that some surfaces, such as
clothing, are not detected by the system.
-Sensors and cameras have blind spots in
which people and objects cannot be detect­
ed . Be especially cautious of small children
and animals.
- Always pay attention to the area around the
vehicle -using the rearview mirror, too .
-The sensors can be displaced by impacts or
damage to the radiator gr ille, bumper,
wheel housing and the underbody . The park ­
ing system may be impa ired as a result.
Have an authorized Audi dealer or author­
ized Audi Serv ice Facility check their func­
tion.
(D Note
-Some objects are not detected or displayed by the system under certain circumstances:
-objects such as barrier chains, trailer draw
bars, vert ical poles or fences
-objects above the sensors such as wall ex ­
tensions
Parking aid
-objects with certain s urfaces or structures
such as chain link fences or powder snow
-If you continue driving closer to a low ob­
ject, it may disappear from the sensor
range . Note that you will no longer be
warned about th is obstacle.
-Keep enough distance from the curb to re­
duce the risk of damage to th e rims.
(I} Tips
-The system may provide a warning even
though there are no obstacles in the cover­
age area in some situations, such as:
-certa in road surfaces or when there is tall
grass
- external ultrasonic sources such as from clean ing vehicles
-in heavy rain, snow, or thick vehicle ex­
haust
-We recommend that you practice parking in
a traff ic -free location or parking lot to be ­
come fam iliar with the system . When doing
this , there shou ld be good light and weath­
er conditions .
-You can change the volume and pitch of the
signa ls as well as the display ¢
page 147.
-What appears in the infotainment display is
somewhat time-delayed .
-The sensors must be kept clean and free of
snow and ice for the parking aid to operate .
Parking system plus
Description
Applies to : vehicles wit h parking system plus
Parking system plus provides audio and visual
s ignals when parking .
Fig. 14S Illust ratio n:
143

Checking and Filling
-Do not a pply u nder body protectant in t he
exhaust system area, because this increases
the risk of fire.
On Board Diagnostic
System (OBD)
The On-Board Diagnostic System monitors the
engine and transmission componen ts that influ ­
ence emissions.
F ig . 2 64 Footwell o n left s ide o f th e veh icle : co nn ect io n
port fo r the O n-Boa rd D iagno stic Syste m (OBD)
On-Board Diagnostic System
Engine data can be read out at the On-Board D i­
agnostic System connec tion po rt usi ng a special
tes ting device
~ fig . 264.
Indicator light
If thP ¢.j indicato r light bli nks or tu rns o n, there
is a malfunction that is causi ng poor emissions
qua lity and tha t could damage the ca talytic con­
ve rte r.
Drive s lowly to an author ized A udi dealer or au ­
thor ized Audi Se rvice Facility to have the ma l­
function co rrected .
The indicator light can also tur n on if t he fuel fill­
er cap is not closed
correct ly ~ page 315.
A WARNING
Incorrect use of the connection port fo r the
O n- Board Diag nostic System can ca use mal­
functions, which can then result in ac ciden ts
and ser ious injuries.
-Only allow a n author ized Audi dealer or au­
t h o riz e d Aud i Ser vice Faci lity to re ad o ut the
engi ne dat a.
318
-
Engine compartment
Working in the engine compartment
Special care is required if you are working in the
engine compartment
For work in the engine compartment, such as
checking and fill ing fluids, there is a risk of in­
jury, scalding, accidents , and burns . For thi s
reason, follow all the w arnings and general
safety p re caut ion s prov ided in the following in­
formation. The engine compartment is a dan­
gerous are a.
~ .&,.
A WARNING
To reduce the ris k of injur ies, comp lete the
follo wing steps before opening t he hood:
- Tur n t he engine off.
- Switch the igni tio n off.
- Set the park ing brake.
-Move the selector lever into the P position.
-N ever open the hood when there is steam o r
coo lant escaping from t he engine compart­
ment, because there is a risk that yo u could
be burned . Wait unt il no steam or coolant is
escapi ng.
- L et the eng ine cool down .
-Keep children away from the eng ine com-
pa rtment .
-Never sp ill fluids on a hot engine . These flu­
ids (such as the anti-freezing agent con­
tained i n the coolant) ca n ignite .
- Avoid short c ircuits in the electrical system .
-When working in the engine compa rtment,
remember that the radiator fan can switch
on even if the ignition is switched off, wh ich
increases the r isk of persona l injury .
-Never open the cap on the coolant expan­
sion tan k when t he engine is warm . The
coo ling system is under p ressure.
-To protect your face, hands , and a rms from
hot steam or coolant , cover the cap wit h a
large cloth when op ening .
-Do not remove the engine cover under any
circumstances. This increases the r isk of
burns .

u. 00 .-< N l'­ N .-< 0 N > 00
-If tests need to be performed with the en ­
gine running, there is additional danger due
to moving components (such as the ribbed belt, alternator and radiator fan) and from
the h igh-voltage ign it ion system .
- Never reach into the radiator fan. The elec­
tric auxiliary fan is controlled by tempera ­
ture and can switch on suddenly .
- Do not under any circumstances activate the
throttle inadvertently (for example, by hand
from the eng ine compartment) if the vehi­
cl e is stationa ry but the engi ne is ru nning
and a gear is engaged. Ot herw ise, the vehi­
cl e w ill sta rt to move immediately and t his
cou ld res ult in an accident .
- Pay atte ntion to the fo llow ing war nings list ­
ed when work on the fuel system or on the
electrical eq uipment is required.
- Do not smoke .
- Never work near open flames.
- Always have a working fire extinguisher
nearby.
- All work on the battery or e lectrica l system
in yo ur vehicle can res ult in injuries, chemi­
ca l burns, accidents or burns. Because of
this, all work must be performed
onl y by an
authorized Audi dealer or authorized Aud i
Service Facility .
- To reduce the risk of e lectric shock and in­
jury, never touch the following components when the eng ine is r unning or is being start­
ed:
- Ignition cable
- Other componen ts i n the ele ct ronic high-
voltage ignition system
- If you mus t check o r perfo rm wor k on t he
engine while it is runn ing:
- Set the parking brake and p lace the se lec­
tor lever in the P (park) position first .
- Always proceed with extreme caut ion so
that clothing, jewelry or long ha ir do not
become caught in the radiator fan, fan
belt o r other moving components or do
not come into contact with hot compo­
nents. Tie back lo ng ha ir before beginni ng
wo rk and do no t wear clot hing t hat can
hang down into the engine .
Check ing and F illing
- Limit your exposure to exhaust and chemi ­
cals to as short a time as possible
c> A .
A WARNING
-Ca lifornia Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certa in vehicle components conta in or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and reprod uctive harm . In add ition, certain flu­
ids conta ined in vehicles and certa in prod­
ucts of component wea r contain or em it
chemi cals know n to the State of Californ ia
t o cause cancer and b irth de fe cts or othe r
reprod uctive harm .
- Batte ry posts, te rm inals a nd rela ted a cces­
sor ies conta in lea d and le ad compo unds,
chemicals known to the State o f Cali fornia
to cause cancer and reproductive harms.
Was h hands after handling.
(LlJ) Note
When filling fluids, be su re not to m ix t he flu­
ids up . Otherwise severe malfunctions and en ­
gine damage will occur.
@ For the sake of the environment
You should regu lar ly check t he g ro u nd under
your vehicle in order to detect leaks quick ly . If
there are visib le spots from oi l o r other fluids,
bring your veh icle to an authorized A udi deal ­
er or authori zed Aud i Serv ice Facility to be
checked.
319

LL co .... N
" N .... 0 N > co
Coolant additive
The coolant additive is made of anti-freezing and
corrosion protection agents. Only use the follow ­
ing coolant additives . These additives may be
mixed with each other .
Coolant additive Specification
Gl3 TL 774 J
Gl2++ TL 774 G
The amount of coo lant add itive that needs to be
mixed with water depends on the climate where
the vehicle will be operated .
If the coolant addi­
tive percentage is too low, the coolant can freeze
and damage the engi ne.
Coolant Freeze protec-
additive tion
Warm min
.40% m in. -13 ° F
regions (-25 °C)
max. 45%
Cold min. 50% max . -40 °F
reg ions (-40 °C)
max. 55%
(D Note
- Before t he start of winter, have an author­
i zed Audi dealer or author ized Audi Se rvice
Facil ity check if the coolant additive in yo ur
vehicle matches the percentage appropriate
for the climate . Th is is especially important
when driving in co lder climates .
- If the appropriate coolant additive is not available in an emergency, do not add any
other additive. You co uld damage the en­
gine. If this happens, only use water and re­
store the correct mixture ratio with the
spec ified coolant additive as soon as possi­
ble .
- Only refill with new coo lant .
- Radiator sealant must not be mixed with
the coolant.
@ Tips
App lies to: RS models: In certain weather
conditions, moisture such as rain or snow may
evaporate on the rad iator after stopping the
Chec king and Filling
vehicle . This may cause s team to escape from
the front of the vehicle .
Adding coolant
Fig . 270 E ng in e co mpa rtment: ma rkings o n th e coo lant
expansio n
tan k
Observe the safety precautions r:::;, page 318,
Working in the engine compartment .
Checking the engin e coolant level
.,. Park the vehicle o n a level surface.
.,. Switch t he ignit ion off.
.,. Read the coolant level on the coolant expansion
tank
r:::;, fig. 2 70. The coolant level must be be­
tween the markings when the eng ine in cold .
W hen the eng ine is warm it can be slig htly
above the upper marking.
Adding coolant
Applies to: vehicles with plug-in hybrid drive:
your vehicle has two coolant expans ion tanks
that are separate from each other. The smaller of
the two expansion tanks must not be opened
r:::;, page 102. Read and follow the important safe­
ty preca utions
r:::;, .&. in Coolant on page 103 .
Requirement: there must be a residua l amount of
coolant in the expansion tank
c::> (D .
.,. Let the eng ine cool down.
.,. Place a cloth over the coolant expansion tank
cap and unscrew the cap counterclockw ise
c::> .&_ .
.,. Add coo lant m ixed in the cor rect ra tio
r:::;, page 324 up to the upper m arking .
.,. Make sure that the f lu id leve l remains stab le.
Ad d mo re coolant if necessa ry.
.,. Close the cap securely.
325