2018 AUDI A3 SEDAN transmission

Assistance systems
Adjusting the Individual mode
You can adjust the vehicle settings to your personal preferences.
~ Select: I MENU I button >Vehicle> Audi drive
select> Individual >
right control button.
After you have closed the settings, you will auto ­
mat ica lly dr ive in the
Individual * mode.
Systems comfort
Engine /transmission
comfortab le
Steering comfortab le
Engine sound* subtle
Audi adaptive cruise control* comfortable
Suspension control* comfortable
quattro * balanced
Applies to: RS models:
quattro balanced
a) Subtle in t he selector lever position "D" and sporty in "S".
(0 Tips
Your Individual * mode settings are stored au­
tomatically and assigned to the remote con­
trol key in use.
142
The systems you can adjust depend on the equip­
ment and engine in your veh icle. The following
table g ives an overview of the characterist ics.
auto dynamic
ba
lanced sporty
ba lanced sporty
subtle/sportyal sporty
ba lanced sporty
ba lanced sporty
ba lanc ed sporty
neutral sporty

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
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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 .

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Glossary of tire and loading
terminology
Accessory weight
means the combined weight ( in
excess of those standard items
which may be replaced) of auto­ matic transmission , power steer ­
ing, power brakes, power win­
dows, power seats, radio, and
heater, to the extent that these
items a re available as factory- in­
stalled equipment (whether i n­
stalled or not) .
Aspect ratio
means the ratio of the height to
the width of the tire in percent .
Numbers of 55 or lower indicate a
low s idewall for improved steer­
ing response and better overall
handling on dry pavement.
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim .
Bead separation
means a breakdown of the bond
between components in the bead .
Wheel s
Cord
means the strands forming the
plies in the tire .
Cold tire inflation pressure
means the tire pressure recom­
mended by the vehicle manufac ­
turer for a tire of a designated
size that has not been driven for
more than a couple of miles (kilo­
meters) at low speeds in the
three hour period before the tire pressure is measured or adjusted .
Curb weight
means the weight of a motor ve­
hicle with standard equipment in­
cluding the maximum capacity of
fuel, oil , and coolant, air condi­
tioning and additional weight of
optional eq uipm ent .
Extra load tire
means a tire designed to operate
at higher loads and at highe r in­
flation pressures than the corre­
sponding standard tire . Extra load
tires may be identified as "X L",
"xl", "EXTRA LOAD", or "RF" on
the sidewall.
.,.
333

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A WARNING
-Read and follow the manufacturer's safety
precautions o n the compressor and in th e
in structions on t he bottle of sealant .
- If a tire pressure of 29 ps i (200 kPA) cannot
r e ached after inflating for 6 minutes, then
the tire is too severely damaged . Do not
continue d riving.
- If the t ire cannot be repaired with the tire
sealant, see an authorized Audi dealer or au­
tho rized Aud i Serv ice Facility for ass istance.
(D Tips
Do not operate the compressor for more than
six m inutes continuously, or it can overheat.
Once the compressor has coo led, you can con­
tinue to use it.
Completing
Applies to: vehicles with tire mobility kit
.,. Affix the st icke r that says "max . S O mph (max .
80 km/h)" that is provided with the tire mobili ­
ty kit within the driver's field of vision .
.,. Stop the vehicle after driving for about 10 mi ­
nutes and check the tire pressure.
.,. If the t ire pressure is lower than 19 ps i (130
kPA), then the tire is too severely damaged. Do
not cont inue driving.
A WARNING
Pay attent ion to the following after repair ing
the ti re:
- Do not drive faster than SO mph (80 km/h) .
- Avoid hard acceleration, brak ing sharp ly,
and fast cornering.
- The veh icle may become more diff icult to
control.
- If the t ire is too severely damaged, see an
authorized Audi dealer or authorized Aud i
Service Facility for assistance .
@ For the sake of the environment
You can give the used t ire sealant bottle to an
author ized Audi dealer or authorized Audi
Serv ice Facility for disposal.
Em ergenc y ass is tanc e
(D Tips
Remember to obtain a new bott le of sealant
from an authorized A udi dealer or authorized
Audi Service Fac ility after repairing a tire.
Replacing wheels
Before changing a wheel
Observe the following precautions for your own
and your passenger's safety when changing a wheel.
.,. After you experience a t ire failure, pull the car
we ll away from moving traffic and try to reach
level grou nd befo re yo u stop ¢&, .
.,. All passengers should leave the car and move
t o a safe location ( for ins tance, behind the
gua rdrail) ¢&, .
.,. Engage the pa rking brake to prevent your vehi ­
cle from rolling unintentiona lly ¢
_A .
.,. Move selector le ver to position P ¢ _A .
... Jfyou are towing a trai ler, unhitch the trailer
from your vehicle.
.,. Take the jack ~ page 360 and the sp a re tire
ca:;, page 369 out of the luggage compartment .
A WARNING
You or you r passengers could be injure d while
ch anging a whee l if you do no t follow these
safety precaut ions :
- If you have a fla t tire, move a safe dis tance
off the road. Turn off the eng ine, turn the
emergency flashers on and use other warn ­
ing devices to alert other motorists.
- Make sure that passenge rs wait in a safe
p lace away from the vehicle and well away
from the road and traffic.
- To help preven t the vehicle from moving
suddenly and possib ly slipping off the jack,
always fully set the park ing brake and bloc k
the front and back of the wheel diagonally
opposite the wheel being changed. When
one front wheel is lifted off the ground,
p lacing the Au toma tic Transmission in P
(Park) will
not prevent the vehicle from
mov ing.
363

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No. Equipment
F49 Clutch sensor (relay 1+2),
high-voltage
battery, power electronics
F52 Control module for suspension control
F53 Rear window defogger
The power seats* are protected via
circuit break­
ers
that automatically switch on after a few sec­
onds after the overload has been reduced.
Fuse assignment -engine compartment
Fig. 299 Engine compartme nt: fuse assignment
No. Equipment
Fl Electronic Stabilization Control (ESC)
F2 Electronic Stabilization Control (ESC)
F3 Engine control module
Eng ine components, engine cooling, aux-
F4 iliary heater co il relay (1+4+7), secondary
air inject ion pump relay
FS Engine components, fue
l tank system
(diesel), CNG cut-off va lve
F6 Brake light switch
F7 Eng
ine components, water pumps, tank
system (gasoline engine)
FB Heat oxygen sensor
Fuses and bulbs
No. Equipment
F9 Engine
components, exhaust door, glow
time control module (relay 6)
F lO Fuel control module, fuel pump
F ll Auxiliary
heater heating element 2, en-
gine components, secondary air pump
F12 Auxiliary
heater heating element 3, vac-
uum pump
F13 Automat ic transmission
F lS Horn
F16 Ign
it ion coil (relay 8), power and control
electronics
F17 E
lectroni c Stabilization Control (ESC), en-
gine control module (relay S)
F18 Terminal
30 (voltage reference), battery
monitoring
Fl9 Windshield wipers
F20 Anti-theft alarm system
F22 Terminal
SO diagnos is, engine control
module
F23 Starter
F24 Auxiliary
heater heating element 1, brake
booster
F 31 Vacuum pump, water pump, high pres-
sure pump, fuel injectors
F33 Brake
pressure reservoir, recuperation,
transmission fluid pump
F34 Brake booster
F 35 A/C function
relay
F37 Parking heater
Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for
you.
It is becom ing increasingly more and more diffi­
cu lt to replace vehicle light bulbs since in many
cases, other parts of the car must first be re­
moved before you are ab le to get to the bulb.
This applies especially to the light bulbs in the
373

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Emergency situations
General
This chapter is intended for trained emergency
crews and working personnel who have the nec­
essary tools and equipment to perform these
operations.
Starting by pushing or
towing
~ Note
Vehicles with an automatic transmission can­
not be started by pushing or towing.
Jump starting
Preparation
If needed, the engine can be jump started by an­
other vehicle battery.
Applies to: vehicles with plug-in hybrid drive: the
connection points for the jump start cable are
different
q page 102.
If the engine does not start because the vehicle
battery is drained, you can jump start the engine
using another vehicle battery. You need a jump
start cable to do this.
Both vehicle batteries must have 12 V nominal
voltage . The voltage capacity (Ah) of the vehicle
battery that is giving power must not be less
than the capacity of the drained vehicle battery.
Jump start cable
Only use a jump start cable with a large enough
diameter. Note the manufacturer's specifica­
tions .
Only use a jump start cable with insulated termi­
nal clamps.
Positive cable - usually red .
Negative cable -usually black.
Emergency situations
A WARNING
--
- Applies to: vehicles with plug-in hybrid
drive: you must
not give a jump start with
your vehicle . This could cause significant
damage to the electrical system in your ve­
hicle
Q page 102.
-A drained vehicle battery can freeze at tem­
peratures around 0
Q(. If the vehicle battery
is frozen, you must thaw it before connect­
ing the jump start cables. If you do not, this
increases the risk of an explosion and chem­
ical burns. After jump starting the vehicle,
drive to an authorized Audi dealer or author­
ized Audi Service Facility immediately to
have the vehicle battery checked.
- The engine compartment is a dangerous
area and can cause serious injuries. Before
working in the engine compartment, read
and follow the warnings
Qpage 318.
- Handling the jump start cables incorrectly
may cause the vehicle battery to explode
and lead to serious injuries . To reduce the
risk of injury, observe the following:
- Do not touch the non-insulated parts of the
terminal clamps. The cable must also not
come into contact with vehicle components
that conduct electricity when it is connected
to the positive terminal. This can cause a
short circuit.
- Route the jump start cables so they cannot
get caught in the moving parts in the engine
compartment.
- To reduce the risk of chemical burns, do not
bend over the vehicle battery.
- The locking bolts on the battery cells must
be tightened securely.
- Keep ignition sources (open flames, burning
cigarettes, etc.) away from the vehicle bat­
teries to reduce the risk of an explosion.
- Do not clamp the negative cable to fuel sys­ tem components or to the brake lines.
(LlJ} Note
- There must be no contact between the
vehicles, If there is, current could already be
.,.
375

Emergency situations
flowing when connecting the positive termi­
nals and the vehicle battery in the vehicle
providing the jump start cou ld be drained.
- Jump start cables can cause considerab le
damage to the vehicle electrical system if
they are connected incorrectly.
- The drained vehicle battery must be con­
nected correctly to the electrical system.
- P lease note that the connecting process de­
scribed below for the jump start cables is in­
tended for when your vehicle is being jump
started. If you are jump starting another ve­
hicle, do not connect the negative cable to
the negat ive terminal( -) on the drained ve­
hicle battery, but rather connect it to a large
metal component that is bolted securely to
the engine block, or to the engine block it­
se lf. If the vehicle battery in the vehicle be­
ing jump started is not vented to the out ­
side, there is a risk of explosion due to hy­
drogen gas.
@ Tips
If a car phone is installed, switch it off or
check the operating guide for what to do in
this situation.
A3 models: starting the engine
Both jump start cables must be connected in the
correct order!
F ig. 300 Ju mp starting using a vehicle batte ry in anot her
vehicle :@ - dra ined, @- providing cu rrent
Plug-in hybrid drive *: the connection points for
the jump start cables vary Q
page 102.
The vehicle battery is located on the left front
side of the engine compartment . Open the cover
to access the positive terminal of the vehicle bat-
376
tery. The procedure for connecting jump start ca­
bles that is described next is designed to help
j ump start your vehicle .
Follow the information about the vehicle battery
Qpage 326 .
Preparations
1. Read the following carefully ¢ page 375,
Preparation.
2. Set the parking brake and select neutral on
vehicles with a manual transmission, or move
the selector lever to the P position on
vehicles with an automatic transmission .
3. Turn the ignition and electrical equipment
off in both vehicles.
Connecting/disconnecting the jump start
cable
4. Fold the battery cover upward.
5. Clamp the end of the red jump start cable to
the termina l
(D ¢ fig. 300 on the drained ve­
hicle
battery @Q(D in Preparation on
page
375 .
6. Clamp the other end of the red jump start ca­
ble to the positive terminal @on the vehicle
battery providing the current @.
7. Clamp the black end of the jump start cab le
preferably at the ground point, or on the
negative terminal of the vehicle battery@
on the vehicle providing the current @.
8. Clamp the other end of the black jump start
cable
only to the ground point © on your
vehicle @Q(D .
9. Route the jump start cables so they cannot
get caught in the moving parts in the engine
compartment.
Starting the engine
10. First start the engine in the vehicle giving the
charge and let it run at idle.
11. Now start the engine in the vehicle with the
dra ined vehicle battery and wait two to three
minutes until it "r uns smoothly".
12. If the engi ne does not start, stop the starting
procedure after 10 seconds and then repeat
it after approximately 30 seconds .
13. In the vehicle that is being jump started, switch the heater fan and rear window
..,,

Emergency situations
9. Route the jump sta rt cables so they cannot
get caught in the moving parts in the engine
compartment.
Starting the engine
10. First start the engine in the vehicle g iving the
charge and let it run at idle.
11. Now start the engine in the vehicle with the
drained vehicle battery and wait two to three
minutes until it "runs smoothly" .
12.
If the engine does not start, stop the starting
procedure after 10 seconds and then repeat
it after approximately 30 seconds .
13 . In the vehicle that is being jump started,
switch the heater fan and rear w indow de­
froster on to reduce any voltage peaks that may occur when disconnecting the jumper
cab les. The headlights must be switched
off.
14. While the engines a re running, remove the
cables in
reverse order from the way they
were installed, as described in ¢
page 3 76.
Make sure the cables do not get caught in
moving engine components.
15 . Close the cap on the positive term inal.
16 . Sw itch the heater fan and rear w indow de­
froster
off.
Read and follow: ¢ .&. in Preparation on
page 375
and ¢ (D in Preparation on page 375 .
@ Tips
-Make sure that the connected positive ter­
minal clamps have sufficient contact with
metal.
- The vehicle battery in your vehicle vents to
the outs ide so the battery gases drain out of
the veh icle .
Towing with a tow truck
General hint s
Your Audi requires special handling for towing.
The follow ing information is to be used by com­
mercial tow truck operators who know how to op­
erate the ir equipment safely.
-Never tow your Audi. Towing will cause dam­
age to the engine and transmission .
378
-Never wrap the safety chains or winch cables
around the brake lines .
- To prevent unnecessary damage , your Audi
must be transported with a flatbed truck.
- To load the vehicle on to the flatbed, use the
towing loop found in the vehicle tools and at­
tach to the front or rear anchorage
¢page 378 and ¢page 379.
A WARNING
A vehicle being towed is not safe for passen­
gers . Never allow anyone to ride in a vehicle
being towed, for any reason.
Front towing loop
Fig. 303 Rig ht s ide o f front b umper: install ing the tow ing
loop
The threaded opening for the towing loop is lo­
cated behind a
cover on the right side of the front
bumper .
.,,. Remove the towing loop from the vehicle tool
kit ¢
page 360 .
.,,. Press inward on the upper le~ area of the cap
with brief, strong pressure to remove it from
the bumper
¢fig. 303 .
.,,. Insert the towing loop in the threaded opening
until it stops, and then tighten it with the
wheel wrench .
.,,. After using, place the towing loop back in the
vehicle tool kit .
A WARNING
If the towing loop is not tightened until it
stops when installing, the threads may be pulled out when towing the vehicle and that
could cause an accident .
-