2018 AUDI A3 SEDAN engine

LL co ..... N
" N ..... 0 N > co
"To open the side panel, turn the lock and re ­
move the cover
"Lift the cargo floor using the plastic handle @
unt il the cargo floor engages beh ind the tabs
@ in both s ide panels¢ fig. 281 (upper im­
age) .
" Fold the cargo floor back befo re closing the
luggage compartment lid .
Veh icle tool kit and cargo floor co ve r
App lies to: ve hicles with vers ion 2
The vehicle tool kit, tire mobility kit* and com­
pressor* are stored in the luggage compartment
u nder the cargo floor
cover @¢ fig. 280.
"Engage the plastic hook ® in the luggage com-
partment
seal ¢ fig. 281.
" Fold the cargo floor back before closing the
luggage compartment lid .
..&, WARNING
Applies to: vehicles w ith jack
Improper use of the vehicle jac k can ca use se ­
rious personal injuries.
- Never use the screw drive r hex head to
t ighten whee l bolts, since the bolts cannot
attain the necessary tightening torque if you
use the hex head, potentially causing an ac­
cident.
-The factory -supplied jack is intended only
for your vehicle model. Under no circum­
stances should it be used to lift heavy
vehicles or other loads; you r isk injuring
yourself.
-Never start the engine when the vehicle is
ra ised, which could cause a n accident.
-Support the veh icle secure ly with appropri­
ate stands if work is to be performed under­
neath the vehicle; otherwise, there is a po­
tent ial risk for injury .
-Never use the jack supplied with your Audi
on another vehicle, particularly on a heav ier
one . The jack is only suitable for use on the
vehicl e it came w ith.
@ Tips
The vehicle jack* in your vehicle is mainte­
nance-free.
Em ergen cy as sis tanc e
Tire mobility kit
Preparation
Applies to: veh icles w it h tire mob ility kit
" Read and follow the important safety precau-
tions i n
¢page 360.
"Se t the park ing brake.
" Move the selector lever into the P position .
"Check if a repair with the tire mobi lity kit is pos -
sible
¢ page 361.
Using the tire mobility kit
Applies to: veh icles w it h tire mob ility kit
Fig. 282 Tire : tire damage t hat cannot be repaired
The tire repair is only meant for temporary use .
Change the spare tire as soon as
possible¢ &.
If the t ire is p ie rced by an object su ch as a nail,
do not remove the objec t from t he tire.
The tire repair set is able to be used at tempera­
tures as low as -4 °F ( -20 °C) .
The tire mobility kit may not be us ed :
-if the t ire has cuts or punctures that are larger
than 0.16 in (4 mm)
(D ¢ fig. 282
-if the rim is damaged @
-if you drove with very low tire pressure or with-
out air in the tire @
In this case, see an authorized Aud i dea ler o r au­
thorized Audi Serv ice Facility for ass istance.
.&_ WARNING
-Please note that the tire mobility kit cannot
be used in all situations, and that it may on­
ly be used temporarily .
-The tire sealant must not come in contact
with skin, eyes, or clothes.
361

Emergency assistance
Raising the vehicle
The vehicle must be li~ed with the jack first be­
fore the wheel can be removed.
Fig. 288 Sill panels : mark in gs (exa mple)
Fig. 289 Sill : positio nin g th e ve hicle jack
,.. Engage the parking brake to prevent your vehi­
cle from rolling unintentionally.
,.. Move the selector lever to position P.
,.. Find the marking (imprint) on the sill that is
nearest the wheel that will be changed
c> fig . 288 . Behind the marking, there is a lift­
ing point on the sill for the vehicle jack.
,.. Vehicles with a sill: Note the position of the sill
when positioning the vehicle jack
c::> fig. 289.
,.. Place the vehicle jack (vehicle tool kit) on a firm
surface. Use a flat, stable support if necessary.
On a slippery surface such as tile, you should
use a non-slip pad (such as a rubber mat)
c::> ,&..
,.. Turn the vehicle jack located under the lifting
point on the sill to raise the jack until its arm @
c> fig. 289 is located under the designated plas­
tic mount
c::> ,& , c::>G) .
,.. Align the jack so that its arm@ c::> fig. 289 en­
gages in the designated lifting point in the door
sill and the movable base @ lies flat on the
ground. The base @ must be
vertical under the
lifting point @.
366
,.. Wind the jack up further until the flat tire
comes off the ground
c::> ,&. .
Position the vehicle jack only under the designat­
ed lifting points on the sill
c::>fig. 288. There is ex­
actly
one location for each wheel. The jack must
not be positioned at any other location
c::> & c::>(I) .
An unstable surface under the jack can cause the
vehicle to slip off the jack. Always provide a firm
base for the jack on the ground. If necessary
place a sturdy board or similar support under the
jack. On
hard, slippery surfaces (such as tiles)
use a rubber mat or similar to prevent the jack
from slipping
c::> & .
A WARNING -
-You or your passengers could be injured
while changing a wheel if you do not follow
these safety precautions :
-Position the vehicle jack only at the desig­
nated lifting points and align the jack.
Otherwise, the vehicle jack could slip and
cause an injury if it does not have suffi­
cient hold on the vehicle .
-A soft or unstable surface under the jack
may cause the vehicle to slip off the jack.
Always provide a firm base for the jack on
the ground . If necessary, use a sturdy
board under the jack.
-On hard, slippery surface (such as tiles)
use a rubber mat or similar to prevent the
jack from slipping.
-Only raise your vehicle with the vehicle
jack provided by the factory. If you use a
vehicle jack for another vehicle, your vehi­
cle can slide and cause injury.
-Changes in load can affect the height of
the vehicle.
-Never start the engine when the vehicle is
raised, which could cause an accident.
-Support the vehicle securely with appro­
priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potential risk for injury .
-To help prevent injury to yourself and your
passengers:

LL co .... N
" N .... 0 N > co
Fuses and bulbs
Fuses
Changing fuses
A fuse that has blown will have metal strips that
have burned through .
Fig. 2 96 Steering column area: cover
Fig. 297 Left s ide of the eng ine compartment: fu se cover
T h e fuses a re loca ted behind a cover in t he stee r­
ing column area ¢
fig. 296 or under a cover on
the left side of the engine compartment
¢ fig. 297.
.. Switch the ignition and all e lectr ica l equipment
off.
.. Check the following table to see which fuse be ­
longs to the equipment
¢ page 372 .
.. Remove the cover .
.. Remove the plastic cl ip from the fuse panel
cove r in the engine
compartment¢ fig. 297 .
.. Remove the fuse using the plastic clamp .
.. Replace the burned fuse w ith an identical new
one .
.. Reinsert the cove r.
Fuses and bulbs
Fuse color identification Color Current rating
in amps
Black 1
P urple 3
Light brown 5
Brown 7.5
Red 10
Blue 15
Yellow 20
W hite or tra nspa rent 25
Green 30
O range 4 0
_& WARNING
-
Do not repair fuses and neve r rep lace a blown
f u se with one that has a higher amp rating.
This can cause damage to the e lectr ica l sys­
tem and a fi re .
@) Note
If a new fuse burns out again shortly afte r you
have insta lled it, have the electrical system
chec ked as soon as poss ible by an authorized
Audi dealer or authorized Audi Service Fac ili­
ty.
(D Tips
- The following table does not list fuse loca­
tions that are not used.
- Some of the equipment listed in the fo llow­
ing tables applies on ly to certain model ver­
sions or certa in optional equipment.
371

Fuses and bulbs
Fuse ass ignment - interior
ij
::, CX) ID
F ig. 298 Vehicle interior: fuse assignment
No. Equipment
Fl Ad Blue engine components
F2 Seat adjustment
F3 Power top hydraulic pump
F4 Infotainment control panel,
Infotainment
components
FS Gateway
F6 Selector lever (automat ic transm iss ion)
Air conditioning/heating controls, auxiliary
F7 heating, rear window defogger relay, tire pressure monitor
Electromechan ical park ing brake switch,
light switch, rain/light sensor, anti-theft
F8 alarm system,
diagnostic connector, roof
module, emergency call system, head light
range control
F9 Steering col umn sw itch module
FlO Infotainment system display
Fll Left vehicle electrica
l system control mod-
ule
F12 Infotainment components
F13 Driver's side safety belt tensioner
F 14 Heat ing/a ir condit ion ing system blower
372
No . Equipment
FlS Electronic
steering column lock
F16 Infotainment components
Fl7 Instrument cluster
Fl8 Rearview camera
Fl9 Convenience access control module
F20 Engine components
F21 Steering column, steering wheel heating
switch module
F23 Panorama glass
roof/power top control
module, power top latch
F24 R
ight vehicle electrical system control
module
F2S Driver
's side front/rear power windows
F26 Seat heating
F27 Interior
lights
F28 Power top control module
F29 Interior lights
F30 Diagnostic connector
F32 Front camera, parking
system, ACC sensor,
lane change assist
F33 Airbag
Hold assist button, interior sound, revers-
F34 i
ng light sw itch, temperature sensor, neck
heating relay coil and socket relay, power
top operation button
Air quality sensor, automatic dimming
F3S rearview
mirror, diagnostic connector, cen-
ter console power supply
F36 Right
headlight (LED, Matrix LED)
F37 Left headlight (LED, Matrix LED)
F38 High-voltage battery
F39 Passenger
's side front/rear power w in-
dows
F40 Sockets
F41 Passenger's sid e safe ty be lt tens ioner
F42 Central locking area
F43 Sound-amplifier
F44 All wheel drive
F47 Rear window wiper
F48 Outer sound actuator

LL co .... N
" N .... 0 N > co
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

Fuses and bulb s
front of your car which you can on ly reach
through the engine compartment .
Sheet metal and bulb ho lde rs can have s ha rp
edges that can cause ser ious c uts, parts must be
correct ly taken apart and then properly put back
together to he lp prevent breakage of parts and
long term damage from water that can enter
housings that have not been properly resea led.
F or your safety, we recommend that you have
your authorized Audi dealer replace any bu lbs for
you, s ince your dealer has the proper tools, the
correct bulbs and the expert ise.
Ga s di sch arg e lamps (Xen on li ght s)
Due to the high elect rical voltage, have the bulbs
replaced by a qua lified technic ian . Head lights
with Xenon light are ident ified by the h igh vo lt ­
age sticker.
LED h eadlight s*
LED headlights require no maintenance . Please
contact your authorized Audi dealer if a bulb
needs to be replaced .
A WARNING
Chang ing Xenon lamps w it h out the necessa ry
equ ipment can cause ser ious perso na l inju ry.
- Bul bs are p ressur ized and can explode when
being changed. Potentia l risk of i njury!
- On vehicles equipped wit h gas discharge
bulbs (Xenon light) life-threatening inju ries
can result from imp roper ha ndl ing of the
high -voltage po rtions of su ch lamps!
- Only yo ur auth o rized Aud i dea le r or q ual i­
fied workshop should change the b ulbs in
gas discharge lamps . There a re parts with
sharp edges on the openings and on the
bulb ho lders t hat can cause serious cuts . If
you are uncertain about what to do, have
the work performed by an authorized A udi
dealer or qualified workshop. Serious per­
sonal injury may resu lt from improperly per­
formed work .
(D Tips
-If you still prefer to rep lace the light bu lbs
yourself, be aware that the engine com part-
374
ment is a hazardous area to work in ¢ & in
Working in the engine comportment on
page 318 .
-It is best to ask your a uthorized Audi dea ler
whenever you want to change a bulb .

u. 00 .-< N l'­ N .-< 0 N > 00
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
..,,