2015 AUDI A3 light

232 Tire s and wheel s
the time it was manufactured . For the
location of the label
c::> page 229, fig . 156.
Most ti res lose a ir naturally over time. They
can also lose some a ir if you drive ove r a pot­
ho le or hit a curb while parking . It is usua lly
not possible to see whether the radial tires
used today are under inflated just by looking
at them.
Therefore, be sure to check tire pressures at
l east once a month and always before going
on a long tr ip. Make sure to take the number
of people and the amount of luggage into ac ­
count when adjusting tire pressure for a trip -
even one that you would not consider to be
" long." See
c::> page 233 , Tires and vehicle
load limits
for more important information .
Always use an accurate tire pressure gauge
when checking and adjusting inflation pres­
sures . Check all of the t ires and be sure not to
forget the spare t ire . If the pressure in any tire
is too high when the tire is "cold ," le t air out
of the tire slowly with the edge of the tire
gauge and keep checking the pressure until
you reach the pressure that is correct for the l oad (passengers and luggage) and kind of
driving you plan to do .
I f the pressure in any tire is too low, note the
diffe rence between the pressure in the cold
tire and the pressure you need and add the air
that you need to reach the cor rect pressure for
the vehicle load (passengers and luggage) for
the tires on your veh icle as lis ted on the on
your veh icle and in this manual and the k ind
of dr iv ing you pla n to do .
Never e xceed th e ma ximum inflatio n pres ­
sure li sted on th e tire s id ewall for an y rea ­
son .
Remember that the vehicle manufacturer, not
the tire manufacturer, determ ines the correct
tire pressure for the t ires on your vehicle .
It is important to check the tire pressure when
the tires are cold .
- Read the req uired ti re pressure from the tire
pressure label. The tire pressure labe l is lo ­
cated on the driver's side B-pi llar . - Tu
rn the va lve stem cap counter -clockwise
to remove it from the tire va lve .
- Place the air pressure gauge on the va lve.
- The tire pressu res should only be checked
and adj usted when the tires are co ld. The
slightly raised pressures of warm tires must
not be reduced.
- Adjust the tire pressure to the load you are
carrying.
- Reins tall the valve stem cap on the va lve.
When should I check the tire pr essure ?
The correct tire pressure is especially impor­
tant at high speeds. The pressure should
the refore be che cked at least once a mo nth
and always before sta rting a jo urney. Do not
f orget to c heck the ti re p ress ure for the spare
whee l
c::> page 247.
When should I adjust the tire pressures?
Adjust the t ire pr essure to the load you are
ca rrying. After cha ng ing a whee l
or replacing
whee ls you have to adjust the ti re p ress ures
on all whee ls. In addition, you m ust then
store the new tire pressures in the tire pres­
s u re monitoring system
c::> page 243 .
A WARNING
Incorrect tire pressures and/or underinfla­
tion can lead sudden tire fa ilure, loss of
control, collision, serious personal injury
or even death.
- When the warning symbol
RIJ appears in
the instrument cluster, stop and inspect
the t ires.
- Incorrect tire pressure and/or underinfla­
tion can cause increased tire wear and
can affect the handling of the vehicle and
stopping abi lity.
- Inco rrect tire pressures and/or underin ­
f lation can a lso lead to s udden t ire fail­
ure, including a blowout a nd sudden de­
f lation, ca using loss of veh icle cont ro l.
- The driver is responsible for the co rrect
tire pressures for all tires on the veh icle.
The appli cable pressure values are locat ­
ed on a sticker on the dr iver's side B-pil-
lar .
~

24 4 T ire s and wheel s
signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of rea­
sons, includ ing the installat ion of replace­
ment or a lternate tires or whee ls on the veh i­
cle that prevent the TPMS from funct ioning
properly . Always check the TPMS malfunct ion
telltale after replacing one or more t ires or
wheels on your veh icle to ensure that the re­
p lacement or a lternate tires and wheels allow
the TPMS to continue to function properly.
If the Tire Pressure Monitoring System
indicator appears
Applies to vehicles: with tire pressure monitoring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
F ig. 161 Ins trumen t cluste r: ind icato r light w it h m es­
s age
Using the ABS sensors, the tire pressure moni­
toring system compa res the tire tread circum­
ference and vibration characteristics of the in­
dividual tires .
If the pressure changes in one
or more tires, th is is indicated in the instru­
ment cluster display with an indicator light
IE and a message ¢ fig. 161 . If only one t ire
is affected, the location of that t ire will be in­
d icated. The message turns off after a few mi­
nutes. You can disp lay the message again
¢ page 28.
The tire pressures must be stored in the menu
d isplay aga in each time the pressures change
(switching between part ia l and full load pres­
sure) or after chang ing or replac ing a tire on
your ve hicle ¢
page 245. The tire pressure
monitoring system on ly monitors the ti re
press ure you have stored . You can find the rec­
ommended tire pressures for your vehicle on the
labe l on the driver's doo r pillar
¢ page 229 .
Tire tread circumference and vib ration charac­
teristics can change and cause a tire pressure
warning if:
- I f the tire pressure in one or more ti res is
t oo low.
- The tire has structural damage.
- The tire was replaced or the t ire pressure
changed and it was not stored again
¢ page 245.
-The spare tire is installed .
Indicator lights
IE -Loss of pressure in at least one tire ¢ .&. .
Check the tires and replace or repair if neces­
sary. Check/correct the pressures of all four
t ires . Then store the t ire pressures in the
menu display
¢ page 245.
Ill (T ire Pressure Monitoring System) T ire
pre ssure: S ystem mal function!. Ifm:!
ap­
pears afte r switching the ignition on or w hile
driv ing and the [ti] indicato r light in the in­
strument cluster b links for app rox imately one
minute and then stays on , the re is system
malfu nction . Check/cor rect the p ress ures of
all four tires and store them¢
page 245. If
t h e indicator lig ht does turn off or tu rns on
again after a short pe riod of time, drive to
your authori zed Aud i dea ler or qualified repair
facility immed iately to have the malfunction
corrected .
A WARNING
--- If the tire pressure ind icator appears in
the instrument cluster display , one or
mo re of your t ires is sign ifi cant ly unde r­
i n flated. Reduce yo ur speed immedi ately
an d avoid any hard steer ing or b rak ing
maneuvers. Stop as soon as possib le and
check the tires and their pressures. In­
f late the tire pressure to the proper pres­
sure as indicated on the vehicle's tire
pressure labe l
¢page 229. Driving on a
significantly under-i nflated tire causes
the t ire to overheat and can lead to ti re
fa ilur e. Unde r-inflation also is li kely to

-Make sure that passengers wait in a safe
place away from the vehicle and well
away from the road and traffic.
- To help prevent the vehicle from moving
suddenly and possibly slipping off the
jack, always fully set the parking brake
and block the wheel diagonally opposite
the whee l being changed. When one
front whee l is lifted off the gro und, plac­
ing the A utomat ic Transm iss ion in P
(Park) wi ll
not prevent t he vehi cle from
moving .
- Before you change a wheel, be su re the
ground is leve l and fi rm.
If necessary,
use a st urdy board under the jack.
- Always store the vehicle tool ki t, the jack
and the replaced ti re in the l uggage com­
partment¢
page 12 7 .
Changing a wheel
When you change a wheel, follow these­
quence described below step-by-step and in
exactly that order.
1. Remove the d ec orative wheel cov er* . For
more deta ils see also
c:>page 249, Deco ­
rative wheel covers
or ¢ page 2 50,
Wheels with wheel bolt caps.
2. Loosen the wheel bolt s c:> page 250.
3. Locate the proper mount ing point for the
jack and align the jack below that point
<=> page 251.
4. Raise the car w ith the jack c:> page 251.
5. Remove the wheel with the flat tire and
then install
the spare ¢ page 252 .
6. Tighten all wheel bo lts light ly.
7 .
Low er the ve hicle with the jack.
8. Use the wheel bolt wrenc h and
firmly
tighten all whee l bolts c:> page 250.
9. Replace the decorative wheel cov er*.
A WARNING
Always read and follow all WARNINGS and
information
c:> .&. in Raising the vehicle on
page251
and ¢page 253.
What do I d o now ? 249
After changing a wheel
A wheel change is not complete without the
doing the following.
.,. Always store the vehicle tool kit, the jack*
and the replaced tire in the luggage com­
partment
c:> page 127.
.,. Check the tir e pr essure on the spare whee l
immed iate ly afte r mounting i t.
.,. As soon as poss ib le, have the
tight ening
torque s
on all wheel bolts checked w ith a
torque wrench . The correct tighten ing tor­
que is 90 ft lb (120 Nm).
.,. Have the flat tire
replaced as soon as possi­
ble.
@ Tips
- If you notice that the wheel bo lts a re
corroded and difficult to turn while
chang ing a tire, they should be replaced
before you c heck the tightening torque.
- Drive at reduced speed until you have the tightening torques checked.
- After changing a whee l, the ti re press ure
in all four tires must be checked/correct­
ed and the tire pressure monitoring indi­
cator must be stored in the M MI
c:>page245.
Decorative wheel covers
App lies to veh icles: w ith decorat ive w hee l cove rs
The decorative wheel covers must be removed
first to access the wheel bolts.
Fi g. 167 Chang ing a whee l: Removing th e w hee l cover
Removing
.,. Insert the hook (provided with the vehicle
t oo l kit) in the ho le in the whee l hub cover .
i,,.

252 What do I do n ow ?
-Support the vehicle securely with ap ­
propriate stands if work is to be per ­
formed underneath the vehicle;
otherw ise, there is a potential risk for
in Jury .
- To help preven t injury to yourself and
your passengers:
- Do not raise the vehicle u nti l you a re
sure the jack is sec urely e ngaged .
- Passengers mus t not rema in in the ve­
h icle when it is jacked up .
- Ma ke sure that passengers wait in a
safe p lace away from the vehicle and
well away from the road and traffic.
- Make sure jack posi tion is co rrect, ad­
just as necess ary and then contin ue to
raise the jack .
- Changes in temperature or load can af­
fect the height of the vehicle .
0 Note
Do not lift the vehicle by the s ill. Pos ition
the vehicle ja ck only at the designated lift­
ing poi nts on the sill. Othe rwise, your vehi­
cle will be damaged .
Taking the wheel off/installing the spare
Follow these instructions s tep-by-step for
c hanging the wheel.
Fig . 172 Chang ing a w hee l: u sing th e screw driver ha n­
dl e (w it h th e bla de re mov ed) to t urn the bolts
Fig. 173 Ch ang ing a wheel : alignment p in in sid e th e
t op hole
After you have loos ened all wheel bo lts and
raised the vehicle off the ground, remove and
replace the wheel as follows :
Removing the wheel
.,. Use the hexagon al so cket in th e screwdri v­
er handle
to completely remove the top­
most whee l bolt and set it aside on a
clean
surfac e Q fig. 172 .
.,. Screw the threaded end of the al ignme nt
p in
from the tool k it hand-t ight into t he
empty bol t hole
Q fig . 173.
.,. Then remove the other wheel bolts as de ­
scr ibed above .
.,. Take off the whee l leaving the a lignment pin
in the bo lt ho le
Q (J) .
Putting on the comp act sp are wheel
.,. Lift the spare whee l and carefully slide it
over the alignment p in to guide it in place
Q (J) .
.,. Use the hexagonal socket i n the screwdriver
handle to screw in and tighten a ll whee l
bolts
slightly .
.,. Remove the alignment pin and insert and
tighten the rema ining whee l bolt slightly
like the rest .
.,. Turn the jack handle counter -clockwise to
lower the vehicle until the jack is fully re­
leased .
.,. Use the wheel bolt wrench to tighten all
wheel bo lts fi rmly
Q page 250 . Tighten
them
crosswise , from one bolt to the (ap­
proximately) opposite one, to keep the
wheel cente red.

256 Fuses and bulbs
Interior fuse assignment
No. Equipment Ampere
F14
Climate control system
30 blower
F15
Electronic steering column
10 lock
F16 MMI area 7.5
F17
Instrument cluster 5
F18
Rearv iew camera 7 .5
F19
Convince key system control
7.5 module, tank system
F23 Right exter ior lights 40
F24
Panorama sunroof 20/30
F25
Door/driver's side doors (for
30 example power windows)
F26 Seat heating 30
F27
Sound-amp lifier 30
F29
Interior lights 7.5
Fig. 176 Vehicle inte ri or : fuse assignment F31 Left exter ior lights 40
No . Equipment Ampere F32 Driver assista nce systems 7.5
F2
Seat adjustment 10 F33 Airbag 5
F4
MM controls, MMI compo-
7.5 nents
F5 Gateway 5
Button lighting, coils for
socket relays, interior sound,
F34 back-up light switch, tern-7.5
perature sensor, o il level
F6 Ant i-theft alarm system 5 sensor
Climate/heating control, se-
Diagnosis, headlight range
le ctor lever (automatic
F7 transmission), parking heat -10 F35
control system, air quality
10 sensor,
automat ic dimming
er, rear window heater relay
rearview mirror
coil
Diagnosis, electrical parking
F36
Right cornering light/ right
15 LED-headlight
F8
brake switch, light switch,
10 rain/light sensor, interior
lighting
F9
Steering column switch
1 module
F37
Left corner ing light/ left
15 LED-headlight
Door/front passenger's side
F39 doors (for example, power 30
windows)
Fl0 D isp lay 5
F40 Sockets 20
Fll
Reversible driver's safety
25 belt tensioners F41 Reversible front passenger 's
25 side safety belt tensioners
Fl2 MMI area 15/20
F42 Central locking buttons 40
Fl3
Adaptive dampers control
20 module
F43 Windsh ield washer system 30
F44
all wheel drive 15
F45
Power driver's side seat 15

No. Equ ipment Ampere
F49 Starter, clutch sensor
5
FS3 Rear window defogger 30
The power seats* are protected v ia
circ uit
br ea ker s
that automatically sw itch on after a
few seconds after the overload has been re­
d uced.
(D Tips
Note that the following table was accurate
at the time of pr int ing and is subject to
change.
Left engine compartment fuse
assignment
F ig. 177 Eng ine compartment: fuse assignment
M ,.._
-0
!
No. Equ ipment Ampere
Fl ESC control module 40
F2 ESC control module
40
F3 Eng
ine control module (gas-
15/30
oline)
Engine cooling, engine com-
F 4 ponents, auxiliary heater
5/10
coil relay (1 +2), secondary
a ir injection pump relay
FS Eng
ine components, tank
7,5/10/
system 15
Fuse s and bulb s 257
No. Equipment Ampere
F6 Brake light sensor
5
F7 Engine components, water 7,5/10/
pumps
15
F8 Lambda sensor 10/15
Engine components, ex-
F9 haust door, glow time con-
5/10/20
tro l module, SU LEV valve
FlO Fuel
injectors, fuel control
15/20
module
Fl l Auxiliary heater heating ele
-
40
ment 2
F12 Auxilia
ry heater heat ing ele-
40
ment 3
F13 Automatic transmiss
ion con-
15/30
trol module
FIS Horn 15
F16 Ignit ion coil 20/7.5
F17 ESC contro
l modu le, engine
7.5
control module
F18 T
ermina l 30 (reference volt-
5
age)
F19 Windshield wipers
30
F20 Horn 10
F22 Termina
l SO diagnosis
5
F23 Starter 30
F24 Auxiliary heater heating ele-
ment 1 40
F31 Vacuum pump 15
F32 L ED head lights
5
(i} Tips
Note that the follow ing tab le was accurate
at the time of printing and is subject to
change.

258 Fuses a nd bul bs
Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace burned
out bulbs for you .
It is becoming increasingly more and more
difficult to replace vehicle light bulbs since in
many cases, other parts of the car must first
be removed before you are able to get to the
bu lb . T his appl ies especia lly to the l ight bu lbs
in the front of your car which you can on ly
reach through the engine compartment .
Sheet metal and bulb ho lders can have sharp
edges that can cause ser ious cuts, and parts
must be correctly taken apart and then prop ­
e rly put back together to help prevent break­
age of parts and long term damage from wa­
ter that can enter housings that have not been properly resealed.
F or your safety, we recommend that you have
your authorized Audi dealer replace any bulbs
for you, since your dealer has the proper tools,
the correct bu lbs and the expertise.
Gas disc harg e lam ps (X enon lig ht s):
Due to the high electrical vo ltage, have the
bu lbs rep laced by a qualified technician.
H eadlights with Xenon light can be identified
by the high voltage sticker.
LED headlights* require no ma intenance .
P lease contact your authorized Aud i dealer if a
bu lb needs to be replaced.
A WARNING
Contact with high-voltage components of
the electrical system and improper re­ placement of gas discharge (Xenon) head­
light bulbs can cause serious personal in­
jury and death .
- Xenon bulbs are pressurized and can ex­
plode when being changed.
- Changing Xenon lamps requires the spe­
cial training, instruct ions and equ ip­
ment. -
On ly an authorized A udi dealer or other
qualified workshop should change the
bulbs in gas discharge lamps .
A WARNING
There are parts with sharp edges on the
openings and on the bulb holders that can
cause serious cuts.
- If you are uncertain about what to do,
have the work performed by an author­
ized Audi dealer or other qualified work­
shop. Serious personal injury may result
from imprope rly performed work.
(D Tips
- If you st ill prefer to replace the light
bulbs yourself, be aware that the engine
compartment is a hazardous area to
work in
~ page 21 a ~ .11::..
- It is best to ask your authorized Audi
dea ler whenever you need to change a
bulb.
-

Emergency situations
General
This chapter is intended for trained emer­
gency crews and working personnel who have the necessary tools and equipment to
perform these operations.
Starting by pushing or
towing
(D Note
Vehicles with an automatic transmission
cannot be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine can be started by
connecting it to the battery of another vehi­
cle.
If the engine should fail to start because of a
discharged or weak battery, the battery can be
connected to the battery of
another vehicle,
using a
pair of jumper cables to start the en­
gine.
Jumper cables
Use only jumper cables of sufficiently large
cross section to carry the starter current safe­
ly. Refer to the manufacturer's specifications.
Use only jumper cables with
insulated termi­
nal clamps which are distinctly marked :
plus(+) cable in most cases colored red
minus(-) cable
in most cases colored black.
A WARNING
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal
injury. Follow the instructions below for
safe handling of your vehicle's battery.
- Always shield your eyes and avoid lean­
ing over the battery whenever possible.
- A discharged battery can freeze at tem­
peratures just below 32 °F (0 °C). Before
Emergency situations 259
connecting a jumper cable, you must
thaw the frozen battery completely, oth­
erwise it could explode.
- Do not allow battery acid to contact eyes
or skin. Flush any contacted area with
water immediately .
- Improper use of a booster battery to start a vehicle may cause an explosion.
- Vehicle batteries generate explosive gas­
es. Keep sparks, flame and lighted ciga­
rettes away from batteries.
- Do not try to jump start any vehicle with a low acid level in the battery.
- The voltage of the booster battery must
also have a 12-volt rating. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged bat­
tery . Use of batteries of different voltage
or substantially different "Ah" rating
may cause an explosion and personal in­
JU ry.
- Never charge a frozen battery. Gas trap­
ped in the ice may cause an explosion.
-Never charge or use a battery that has
been frozen. The battery case may have
be weakened.
- Use of batteries of different voltage or
substantially different capacity (Ah) rat­
ing may cause an explosion and injury.
The capacity (Ah) of the booster battery
should not be lower than that of the dis­
charged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
¢ page 210.
(D Note
-Applying a higher voltage booster bat­
tery will cause expensive damage to sen­
sitive electronic components, such as
control units, relays, radio, etc.
- There must be no electrical contact be­
tween the vehicles as otherwise current
could already start to flow as soon as the
positive(+) terminals are connected. ..,. •
•
•