lock AUDI S3 2015 Repair Manual

Tires and wheels 24 7
It is important to check the tire sure for the spare wheel
pressure when the tires are
¢page 268.
cold.
When should I adjust the
-Read the required tire pres-tire pressures?
'
sure from the tire pressure la-
Adjust the tire pressure to the •
•
bel. The tire pressure label is load you are carrying. After
located on the driver's side B- changing a wheel
or replacing
pillar. wheels you have to adjust the
-Turn the valve stem cap coun- tire pressures on all wheels. In
ter-clockwise to remove it addition, you must then store
from the tire valve. the new tire pressures in the
-Place the air pressure gauge tire pressure monitoring sys-
on the valve. tern
¢ page 264.
-The tire pressures should only
A WARNING
be checked and adjusted when
Incorrect tire pressures and/
the tires are cold . The slightly
or underinflation can lead
raised pressures of warm tires
sudden tire failure, loss of
must not be reduced.
control, collision, serious per-
-Adjust the tire pressure to the
sonal injury or even death.
load you are carrying.
-When the warning symbol
-Reinstall the valve stem cap
RI] appears in the instru-
on the valve.
ment cluster, stop and in-
When should I check the tire spect the tires.
pressure? -Incorrect tire pressure and/
The correct tire pressure is es- or underinflation can cause
pecially important at high increased tire wear and can
speeds. The pressure should affect the handling of the
therefore be checked at least vehicle and stopping ability.
once a month and always be- -Incorrect tire pressures
fore start ing a journey. Do not
and/or underinflation can
' • M N
forget to check the tire pres-0 > co .... \!) 1.1'1
M 1.1'1 ....

Tires and wheels 259
sure of their "previous histo-and sudden deflation and
ry." Old used tires may have loss of control.
been damaged even though -Temperature grades apply
the damage cannot be seen to tires that are properly in-
that can lead to sudden tire flated and not over or un-
' •
•
failure and loss of vehicle derinflated.
control. -For technical reasons it is
-All four wheels must be fit- not always possible to use
ted with radial tires of the wheels from other vehicles -
same type , size (rolling cir-
in some cases not even
cumference) and the same wheels from the same vehi-
tread pattern. Driving with cle model.
different tires reduces vehi- -If you install wheel trim
cle handling and can lead to discs on the vehicle wheels,
a loss of control. make sure that the air flow
-If the spare tire is not the to the brakes is not blocked.
same as the tires that are Reduced airflow to the
mounted on the vehicle - for brakes can them to over-
example with winter tires - heat, increasing stopping
only use the spare tire for a distances and causing a col-
short period of time and lision.
drive with extra ca re. Refit -Run flat tires may only be
the normal road wheel as used on vehicles that were
soon as safely possible. equipped with them at the
-Never drive faster than the factory. The vehicle must
maximum speed for which have a chassis designed for
the tires on your vehicle are run flat tires. Incorrect use
rated because tires that are of run flat tires can lead to
driven faster than their rat- vehicle damage or acci-
ed speed can fail suddenly. dents. Check with an au-
-Overloading tires cause heat thorized Audi dealer or tire
' M • N
0 > co build-up, sudden tire fail- specialist to see if your vehi-
......
ure, including a blowout cle can be equipped with ... \!) 1.1'1
M 1.1'1 ......

26 2 T ire s and wheel s
loss of control, crashes and serious per­
sona l injuries. Have worn or damaged tires
replaced immediate ly.
- Winter tires have maximum speed rat ing
that may be lower than your veh icle's
maximum speed .
- Never drive faster than the speed for
wh ich the winter or other tires installed
on your vehicle are rated.
A WARNING
Always adjust your driving to the road and traffic conditions. Never let the good ac­
celeration of the winter tires and all-wheel
drive tempt you into taking extra r is ks. A l­
ways remember:
- When brak ing, an a ll-wheel d rive vehicle
hand les in the same way as a front drive
vehicle .
- Drive carefu lly and reduce your speed on
icy and slippery roads, even winter tires
canno t he lp under blac k ice condit ions.
@) For the sake of the environment
Use summe r tires when weathe r cond i­
tions perm it. They are quieter, do not wea r
as quickly and red uce f ue l cons umption.
Snow chains
Snow chains may be fitted on ly to the front
wheels, and only to certain tire sizes . Ask you r
authorized Audi dealer on which tire sizes
snow chains can be used.
I f you are going to use snow chains, then you
must install them on the front wheels at
l east.
The snow chains must h ave low-profi le links
and must not be thicker than 0 .53 inch
(13 .5 mm), including the lock.
Remove wheel ce nte r covers a nd tr im dis cs
be fore putting snow chains on yo ur vehicle
q0 . For sa fety reasons cover caps must then
be fitted over the whee l bolts. These are avai l­
ab le from authorized Audi dea lers.
A WARNING
Using the wrong snow chains for your veh i­
cle o r instal ling them incorrect ly can in­
crease the risk of loss of cont ro l leading to
se rious pe rsonal injury .
- Snow chains are available in different
sizes . Always make sure to follow the in­
structions p rov ided by t he snow cha in
manufac turer.
- When driving with snow cha ins never
d rive faster than the speed permitted for
your specific snow chains.
- Always observe local regulations.
@ Note
- Remove snow chains before dr iv ing o n
roads not covered with snow to avoid
damaging tires and wea ring the snow
chains dow n un necessa rily .
- Snow chains, which come into direc t con­
tact with the whee l rim, can scrat ch or
damage it. Therefo re, make sure that the
s now chains are s uitably covered. Check
t he pos ition of t he snow chains after
driving a few yards and correct if neces ­
sary. Follow the inst ructions from the
snow chain man ufacturer when do ing so.
@ Tips
Where snow chains are mandatory on cer ­
tain roads, th is normally a lso applies to
vehicles with a ll-wheel drive .
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of w heel bol ts is matched to the
f ac tory installed rims. If different rims are fit­
ted, the co rrect wheel bo lts with the right
l ength and correctly shaped bolt heads must
be used. Th is ensures that wheels are fitted
securely and that the brake system functions
correct ly . .,..

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What do I do now? Luggage compartment
lid emergency release
In case of an emergency, the rear lid can be
opened from the inside using the trunk es­
cape handle .
Fig. 174 Section of the luggage compartm en t: access
to the emergency release
To reach the emergency release mechanism,
the rear bench seat backrest must be folded
down .
~ page 65
.,. Push the latch upward in the direction of the
arrow until the lock releases .
The trunk escape handle inside the rear lid is
made of fluorescent material to glow in the
dark.
A WARNING
The trunk escape handle is to be used only in an emergency .
@ Tips
The emergency release lever should never
be used as a handle for closing the rear lid .
General information
.,. Park the vehicle as far as possible from mov­
ing traff ic in the event of a flat tire. In the
event of a flat tire, park the vehicle on a lev­
el surface .
It you are on a steep incline, be
especially careful.
.,. Set the parking b rake.
.,. Swi tch the emergency flashers on .
.,. Put on a reflective vest, if avai lable .
.,. Set up the warning triangle, if available .
What do I d o now ? 267
.,. Have the passengers exit the vehicle . They
should move to a safe place, for examp le
beh ind a guard rail.
A WARNING
Pay attention to the steps above. They are
for your p rotection and t he for the safety
of other dr ivers.
A WARNING ...
Imp roper use of the vehicle jack can cause
se rious pe rsonal injuries .
- Never use the screw driver hex head to
tighten w heel bolts, s ince the bolts can­
not attain the necessary tighten ing tor­
que if you use the hex head, potentially
causing an ac cident .
- The fac tory-supplied jack is intended on­
ly fo r yo ur vehicle model. U nder no c ir­
cumstances sho uld it be used to
li ft
heavy vehicles o r other loads; you risk in ­
juring yo urself .
- Never s tart the engine when the vehicle
is raised, w hich co uld cause an acc ident.
- Support the vehicle secu rely wit h appro­
priate stands if wor k is to be performed
underneath the vehicle ; otherwise, there
is a pote ntia l risk for injury.
- Never use the jac k supplied wit h your
Aud i on another vehicle, particularly on a
heav ier one. The jack is only su itable for
use on the vehicle it came with.
@ Tips
- Some of the on board items listed above
are provided on certain mo dels only or
are opt ional extras.
- Before stor ing the jack*, make sure it is
wound back down as far as it w ill go .

268 What do I do n ow ?
Equipment
Vehicle tool kit
Applies to vehicles: with vehicle tool kit
Fig . 175 Luggage compart ment: cargo floor cover
folded upward
The vehicle tool kit is located in the luggage
compartment under the cargo floor cover
¢fig. 175 .
Carg o flo or c over
.. Hang the plastic hook on the luggage com­
partment weather str ip -arrow-.
Spare tire
General information
Applies to vehicles: with space-saving spa re tire (compact
spare tire)
Fig. 176 Luggage compartment: cargo floor cove r
fo lded upward
Fi g. 177 Compact spare tire
The spare tire~ fig. 177 is intended for short­
term use only. Have the damaged tire checked
and replaced if necessary by an author ized
Audi dealer or qualified repair facility as soon
as possible.
There are some restrictions on the use of the
compact spare tire. The compact spare tire
has been designed specifically for your type of
vehicle. Do not replace it with the spare tire
from another type of vehicle.
Rem ovi ng the sp are tir e
.. Lift the cargo floor by the plastic handle.
.. Hang the p lastic hook on the luggage com­
partment weather strip@¢
fig. 176 .
.. Remove the subwoofer*, if necessary
¢page 269.
.. Turn the large screw counter-clockwise.
.. Remove the spare tire.
Snow ch ain s
For technical reasons, the use of snow chains
on the compact spare tire is not permitted.
If you have to drive with snow chains and a
front tire fails, mount the spare wheel in place
of a rear tire. Install the snow chains on the
rear tire that you removed, and install that in
place of the front tire that failed .
A WARNING
--After installing a spare tire, the tire pres-
sure must be c hec ked as soon as possi­
b le. The tire p ress ure is available on
¢ page 240, fig. 169
- If the spa re tire is more t han 6 years old,
use it only in an emergency and with ex­
treme caution and careful driving.
- The spare ti re is intended only for tem­
pora ry and short-term use.
It shou ld be
replaced as soon as poss ible with the
normal wheel and tire.
- After mounting the compact spare tire, the tire pressure must be checked as
soon as possible . The tire pressure of the
compact spare tire must be 4.2 bar; oth­
erwise, you risk having an accident.

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-Do not drive faster than 50 mph (80 km/
h). You r isk having an accident.
- Avoid full-throttle acceleratio n, heavy
braking, and fast cornering . You risk hav­
ing an acc ident.
- Never drive us ing more than one spare
wheel and tire. You risk having an acci­
dent.
- Normal summer or winter tires must not
be mounted on the compact spare whee l
rim.
- For technical reasons, the use of tire
chains on the spare tire is not permitted.
If it is necessary to dr ive with tire chains,
the spare wheel must be mounted on the
front axle in the event of a flat in a rear
t ir e. The newly ava ilable front wheel
must then be i nstalled in pla ce of the
re ar wheel with the f lat tir e. Ins tall ing
the tire chai n befo re mo unting the wheel
and tire is recommended .
- Loose items in the passenger compart­
ment can cause serio us personal inj ury
dur ing hard braking or in an accident.
Never store the inf latable spare tire or
jack and tools in the passenger compart­ ment.
- Norma l summer or winter tires m ust not
be mounted on the compact spare wheel
rim .
Removing the subwoofer
App lies to vehicles : with subwoofer
The subwoofer must be removed before the
spare wheel* can be removed .
Fig. 178 Spa re whee l w ell : subwoo fer
What do I do now ? 269
Removing the subwoofer
.,. Lift the cargo floor¢ page 268, fig . 176.
.,. Pull the latch (D ¢ fig. 178 toward the ca -
ble.
.,. Press the locking tab @down .
.,. Remove the connector ® and set the re-
moved cable as ide .
.,. Remove the bolt @ .
.,. Carefully remove the subwoofer .
Installing the subwoofer
.,. Carefully place the subwoof er n the rim
wel l. The word "FRONT" on the subwoofer
must face forward.
.,. Insert the connector that was removed.
.,. Secure the subwoofer with the bolt .
.,. Fold the cargo floo r cover back into place.
Changing a wheel
Before changing a wheel
Observe the following precautions for your
own and your passenger 's safety when chang ­
ing a wheel .
.,. Aft er you experience a tire failure, pull the
car we ll away from mov ing traffic and try to
reac h
level ground before you stop ¢ &_ .
.,. All passenge rs should
leave the car and
move to a safe location (for instance, behind
the guardrail)¢ &_ .
.,. Engage the
parking brake to prevent your
veh icle from rolling unintentionally¢&_ .
.,. Move
sel ector lever to po sition P ¢ ,&. .
.,. If you are towing a t ra iler, unhi tch the trailer
from your ve hicle .
.,. Take t he
jack ¢ page 268 and the sp a re tire
¢ page 268 out of the luggage com part ­
ment .
A WARNING
You or your passengers could be inj ured
while changing a w heel if you do not fo l­
l ow these safety p recaut io ns:
- If you have a flat tire, move a safe d is­
tance off the road. Turn off the engine,
turn the emergency flashers on and use

2 70 What do I do now ?
other warning devices to alert other
motorists.
- Make sure that passengers wait in a safe
place away from the vehicle and well
away from the road and traff ic.
- To help prevent the ve hicle from mov ing
sudden ly and possibly slipping off the
jack, always fully set the parking brake and block the whee l diago na lly 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
( P ark) will
no t prevent t he ve hicl e from
movin g.
- B efore yo u change a w heel, be su re the
gr ound is leve l and fir m.
If necess ary,
use a s turdy board under the j ack.
- Alw ay s store the vehicle tool ki t, the j ack
and the repl aced t ire i n the l ugg age com­
partment
¢ page 131.
Changing a wheel
When you change a wheel, follow these­
quence described below step-by -step and in
exactly that order.
1. Remove the decorative wheel cover* . Fo r
mo re details see also¢
page 2 70, Deco­
rative wheel covers
or ¢ page 2 71 ,
Wheels with wheel bolt caps .
2. Loosen the wheel bolts r::!> page 271.
3 . Locate the proper mo unting point for the
jack and align the jack below that point
¢ page 272.
4 .
Raise the car w ith the jack ¢ page 2 72.
5. Remove the wheel with the flat tire and
then install
the spare ¢ page 2 73.
6. Tighten all wheel bo lt s li ghtly.
7 .
Lower the ve hicle w ith the jack.
8. Use the wheel bolt wrench and
firmly
t ig hten all whee l bolts <:!> page 271.
9. Replace the decorative wheel cove r* .
A WARNING
A lways read and follow all WARNINGS and
informati on
r::!> &. in Raising the vehicle on
page
2 72 a nd r:!> page 274 .
After changing a wheel
A wheel change is not complete without the
doing the following .
"'Always store the vehicle toot kit, the jack*
and the replaced tire in the luggage com­
pa rtment
¢ page 131.
"' Check the tire 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
torques
on all whee l bolts chec ked with a
torque wre nch . The correc t tig hten ing tor ­
que is 90 ft l b (120 Nm).
"' Have the flat tire
replaced as soon as possi­
ble.
@ Tips
- If you not ice that the wheel bo lts are
corroded and difficult to turn while
chang ing a tire, t hey should be rep laced
before you check the tig htening to rque.
- Dr ive at reduced speed until you have the
t ightening torques checked.
- After changing a whee l, the t ire p ress ure
in all four tires must be chec ked/co rrect­
ed and the tire p ress ure monito ring ind i­
cator must be s to red in the MMI
r::!> page 266.
' Decorative wheel covers
Applies to vehicles: w ith decorative whee l covers
The decorative wheel covers mus t be removed
first to access the wheel bolts.
Fig. 1 79 Cha ngin g a w hee l: Re mov ing th e w heel cove r
Removing
"' Insert the hook (p rov ided with th e vehicle
t oo l ki t) in the ho le in the whee l hub cover . .,._

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.. Pull off the decorative wheel cover
r=> fig. 179.
Wheels with wheel bolt caps
Applies to vehicles: with wheel bolts with caps
The caps must be removed first from the
wheel bolts before the bolts can be un­
screwed .
Fig. 180 Ch ang ing a w hee l: re movi ng the wheel bo lt
caps
Removing
.. Push the plastic clip (provided with the vehi­
cle tool kit) over the whee l bolt cap until the
inner reta iners on the clip align with the
edge of the cover .
.. Remove the cap with the
plastic clip (vehicle
tool kit)
r=> fig. 180.
Refitting
.. Place the caps over the wheel bolts and
push them back on.
The caps are to protect and keep the wheel bolts clean.
What do I do now? 271
Loosening and tightening the wheel
, bolts
The wheel bolts must be loosened before rais­
ing the vehicle .
Fig. 181 Changing a whee l: loosening the whee l bol ts
Loosening
"' "' -0 > g3
.. Slide the wheel wrench onto the wheel bolt
as far as it will go .
.. Take tight hold of the
end of the wrench
handle and turn the wheel bolts
counter­
clockwise
about one single turn in the d irec­
tion of arrow
c:> fig . 181 .
Tightening
.. Slide the wheel wrench onto the wheel bolt
as far as it w ill go.
.. Take tight hold of the
end of the wrench
handle and turn each wheel bolt
clockwise
until it is seated .
A WARNING
- Do not use fo rce or hurry when changing
a wheel - you can ca use the vehicle to slip
off the jack and cause serious personal
inj uries.
-Do not loosen the wheel bolts more than
one turn
befo re you raise the vehicle with
the jack . - Yo u risk an injury .
(D Tips
-Never use the hexagonal socket in the
hand le of the screwdriver to loosen or
tig hten the wheel bolts .
- If a wheel bolt is very tight, you may find
it eas ier to loosen by carefully pushing
down on the end of the wheel bolt
wrench with
one foot only. As you do so, Ill>-

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-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
injury .
- To help prevent injury to yourself and
your passenge rs:
- Do not raise the vehicle until yo u are
sure the jack is secu rely engaged .
- Passenge rs must no t remai n in the ve­
h icle when it is jacked up .
- Ma ke sure that passengers wait in a
safe place away from the vehicle and
well away from the road and traff ic.
- Make sure ja ck position is correct, ad­
jus t as necessary and then conti nue to
raise the jack .
- Changes i n tem pera ture or load can af­
fect the height of the vehi cle.
(D Note
Do not lift the vehi cle by the s ill. Pos ition
the vehicle jac k only at the designated lift­
ing points o n the sill. Othe rwise, your vehi­
cle will be damaged .
Taking the wheel off/installing the spare
Follow these instructions step-by-step for
changing the wheel.
F ig . 1 84 Chan gin g a w hee l: us ing t he sc rew driver han ­
dl e (w it h t he bla de removed) to t urn th e bolts
What do I d o now ? 273
Fig . 1 8 5 Changi ng a wheel : al ig nme nt p in in sid e th e
t op hole
After yo u have loosened all wheel bo lts and
raised the vehicle
off the ground, remove and
replace the wheel as follows :
Removing the wheel
.,. Use the he xag onal so cket in the scre wdriv ­
er handle
to comple tely remove the top­
most whee l bolt and set it aside on a
clean
surface ¢ fig. 184.
.,. Screw the threaded end of the alignment
pin from the tool kit hand- tight into the
empty bolt hole
Q fig . 185.
.,. Then remove the other wheel bolts as de­
scribed above .
.,. Take
off the whee l leaving the alignment pin
in the bo lt ho le
¢ (D .
Putting on the comp act spare wheel
.,. Lift the spare wheel and carefully slide it
over the alignment p in to g uide it in place
¢ (D .
.,. Use the hexagona l socket in the screwd river
h a ndle to screw in a nd tig hten all whee l
bolts
slightly .
.,. Remove the alignment pin and insert and
tighten the remaining whee l bolt slightly
like the rest .
.,. Turn the jack hand le counter-clockwise to
lower the veh icle until the jack is fully re­
leased .
.,. Use the wheel bo lt wrench to tighten all
wheel bo lts firm ly
i=;, page 271. Tighten
them
c rosswise, from one bolt to the (ap­
proximately) opposite one, to keep the
wheel cente red.

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Interior fuse assignment
Fig. 188 Vehicle inter ior: fuse assignment
No . Equ ipment
Fl Engine components
F2 Seat adjustment
F 3 Hydraulic pump
cover (Cab-
riolet)
F4 MM controls, MMI-compo-
nents
FS Gateway
F 6 Anti-theft alarm system
Climate/heating control,
se-
lector lever (automatic
F7 transmission), park ing heat-
e r, rear window heater relay
coil
Diagnosis, electrical parking
F 8 brake
switch, light switch,
rain/light sensor, interior
light ing
F9 Steering
column switch
module
Fl0 Disp lay
Fll Reversible driver's
side safe-
ty belt tensioners
Fl2 MMI a rea
No .
Fl 3
Fl4
Fl5
Fl6
Fl7
Fl8
Fl9
F20
F23
F24
F25
Ampere
30 F26
10 F27
40 F28
F29
7.5
F31
s F32
5 F33
10 F34
10 F35
1 F36
5
25 F37
15/20
Fu se s and bulb s 2 77
Equipment Ampere
Adaptive dampers control
20
module
Climate control system 30
blower
Electronic steering column
10
lock
MM I area 7.5
Instrument cluster 5
Rearview camera 7.5
Conv ince key system control
7.5
module, tank system
Tank system 7.5
Ex terior lighting, heated
40
washer fluid nozzles
Panorama sunroof/ power
top control modu le, power 20/30
top latch (Cabriolet)
Door/dr iver's side doors (for
30
example power windows)
Seat heati ng 30
Sound-amplifier 30
Power top con trol module,
5
electron ics (Cabriolet)
Interior lights 7.5
Ex terior lighting
40
Driver assistance systems 7.5
Airbag 5
Button illumination, coils
for upper cab in heat ing relay
(Cabriolet) and socket relay,
7.5
interior sound, back-up ligh t
switch, temperature sensor, o il level sensor
Diagnosis, headlight range
control system, air quality
10
senso r, a utomat ic dimming
rearview mir ror
Right corner ing light/ right
15
LED-headlight
Left corner ing light/ left
15
LED -head light