instrument cluster AUDI S3 2011 Owner's Manual

_________________________________________ I_ n_ t_ e_ ll_,igent technology ,__E~-
Battery diagnosis
Battery diagnosis continuously determines the state of the battery.
Sensors determine battery voltage, battery current and battery
temperature. This determines the current state of charge and the
power of the battery .
Idling current management
Idling current management reduces energy consumption while the
vehicle is standing. With the ignition switched off, it controls the
energy supply to the various electrical components. Data from
battery diagnosis is considered.
Depending on the battery's state of charge , individual consumers are
gradually turned off to prevent excessive discharge of the battery and
thus maintain starting capability.
Dynamic energy management
While the vehicle is being driven, dynamic energy management
distributes the energy generated according to the needs of the indi­
v idual components. It regulates consumption, so that more electrical
energy is not being used than is being generated and ensures an
optimal state of charge for the battery.
[ i] Tips
• But even energy management cannot negate the limits of physics.
Consider that the power and life of a battery are limited.
• If starting ability is threatened, you are informed by a warning
=> page 196, "Driver notification in the instrument cluster display". •
What you should know
The highest priority is given to maintaining starting capa­
bility.
The battery is severely taxed in short-distance driving, in city traffic
and during the cold time of year. Abundant electrical energy is
Controls and equip­
ment Safety first Vehicle operation
required, but only a little is generated. It is also critical if the engine
is
not running and electrical components are turned on. In this
instance energy is being consumed but none is being generated .
It is in precisely these situations that you will notice energy manage­
ment actively regulating the distribution of energy.
Vehicle stands for an extended period
If you do not drive your vehicle over a period of several days or weeks,
electrical components are gradually cut back or switched off. This
reduces energy consumption and maintains starting capability over a
longer period.
Take into consideration that when you unlock your vehicle, some
convenience functions, such as the remote key or power seat adjust ­
ment, may not be available. The convenience functions will be avail­
able again when you turn on the ignition and start the engine .
With the engine turned off
If you listen to the radio, for example, with the engine turned off, the
battery is being discharged.
If starting capability is jeopardized due to energy consumption, a
message appears in the driver information display.
You have to start the engine to charge the battery.
With the engine running
Although electrical energy is generated when the vehicle is being
driven, the battery can become discharged. This happens mostly
when little energy is being generated and a great deal consumed and
the battery's state of charge is not optimal.
To bring the energy balance back into equilibrium, consumers which
require especially large amounts of energy are temporarily cut back
or switched off. Heating systems in particular require a great deal of
energy . If you notice, for example , that the heated seats* or the
heated rear window are not heating, they have been temporarily cut
back or switched off. These systems will be available again as soon as
the energy balance has been restored. .,
Vehicle care Do-it-yourself service Technical data

Intelligent technology
'-----------------------------------------------
Yo u will also notice that eng ine idle speed has been increased
sli gh tly . Thi s is normal and not a ca use for con cern. By increa sing
eng ine id le speed t he add it io nal energy required is generated a nd the
battery is charged. •
Driver notification in the instrument
cluster display
If bat tery powe r drops in to the r an ge where i t can li mit the ability of
the engine to start, this is shown in t he instr ument cluster display
w ith the follow ing dr iver me ssage:
-Low battery charge : battery will be charged while driving
T his notification rem inds yo u that the startin g capab ility of t he
eng ine m ay be limi te d . As soo n as you st art driv in g ag ain, the batte ry
w ill be recharged and t he notification will go out .
Driver notification appears and goes out again
If this dr iver notification appears after the ignition is turned on or
w hile driving a nd it goes ou t ag ain afte r a whil e, the b attery has been
adeq uate ly recharged.
Driver notification appears and does not go out
again
If t his dr ive r not ifica tion appears after the ign ition is turned o n or
w hile driving and does not go out again, the battery 's state o f charge
is not in the o ptim al ra nge . Sta rt in g abili ty is rest ric ted . H ave the
battery checked as soon as poss ible by an authorized A udi dealer or
qu alifie d workshop. •

Trailer towingL _____________________________________________ _
ment of the tow vehicle while observing tongue load requirements
and vehicle loading considerations.
Speed
The higher the speed, the more difficult it becomes for the driver to
control the rig. Do not drive at the maximum permissible speed. Reduce your speed even more under unfavorable load, weather or
wind conditions -particularly when going downhill.
Reduce vehicle speed
immediately if the trailer shows the slightest
sign of swaying .
Do not try to stop the swaying by accelerating.
Observe speed limits . In some areas speeds for vehicles towing
trailers are lower than for regular vehicles .
Always apply brakes early . When driving downhill, shift into lower
gear to use the engine braking effect to slow down the vehicle. Use of
the brakes alone can cause them to overheat and fail.
Coolant temperature
The coolant temperature gauge~ page 9 must be observed care­
fully. If the needle moves close to the upper end of the scale, reduce
speed immediately and/or switch off the air conditioner .
If the coolant temperature warning light in the instrument cluster
starts flashing
-t-, pull off the road , stop and let the engine idle for
about two minutes to prevent heat build-up.
& WARNING
Anyone not properly restrained in a moving vehicle is at a much
greater risk in an accident. Never let anyone ride in your car who is
not properly wearing the restraints provided by Audi. •
Trailer towing tips
Important to know
-------------
Your vehicle handles differently when towing a trailer because of the
additional weight and weight distribution. Safety, performance and
economy will greatly depend on how carefully you load your trailer
and operate your rig.
Before you actually tow your trailer, practice turning, stopping and
backing up in an area away from traffic. Keep practicing until you have
completely become familiar with the way your vehicle-trailer combi­
nation behaves and responds.
Backing up is difficult and requires practice. Backing up with a trailer
generally requires steering action opposite of that when backing up
your vehicle without a trailer.
Maintain a greater distance between your vehicle and the one in front
of you. You will need more room to stop.
To compensate for the trailer, you will need a larger than normal
turning radius .
When passing, remember that you cannot accelerate as fast as you normally would because of the added load. Make sure you have
enough room to pass. After passing, allow plenty of room for your
trailer before changing lanes again.
Avoid jerky starts, sharp turns or rapid lane changes.
[I] Tips
• Do not tow a trailer during the break-in period of your vehicle .
• If you tow a trailer, your Audi may require more frequent mainte­
nance due to the extra load~
page 299. •

Tires and wheels -________________ l'fFI
• The tire p ress ure s s ho uld onl y be chec ked and adjus ted whe n the
ti res are col d. T he sli ghtly rais e d pre ssu res o f w arm t ires must not b e
r e d uced .
• Adju st the tire p re ssu re to t he lo ad you are ca rry ing .
• Reinstall the valve stem cap o n the valve .
When should I check the tire pressure?
The corre ct tire press ure is especially importa nt at high speeds. The
pressu re s ho uld t heref ore be chec ked at least onc e a month an d
always be fore start ing a journey . Do not fo rget to check t he t ire p res­
s u re for the spar e w hee l~
pag e 2 71.
When should I adjust the tire pressures?
Ad jus t the tire pr ess ur e to th e load you ar e carry ing . Af ter chang ing a
w hee l
or replac ing w heels yo u have to adjust the t ire press ures on all
w heels. In addi tion, you must th en ini tia lize the ne w tire press ures in
the t ire pressure monito ring system *~
page 264 .
& WARNING
Incorrect tire pressures and/or underinflation can lead sudden tire
failure, loss of control, collision, serious personal injury or even death.
• When the warning symbol{__, appears in the instrument
cluster , stop and inspect the tires.
• Incorrect tire pressure and/or underinflation can cause
increased tire wear and can affect the handling of the vehicle and
stopping ability.
• Incorrect tire pressure s and/or underinflation can also lead to
sudden tire failure, including a blowout and sudden deflation,
causing loss of vehicle control.
• The driver is responsible for the correct tire pressures for all
tires on the vehicle. The applicable pressure values are located on
a sticker on the driver 's side 8-pillar or on the inside of the fuel
filler flap .
Safety first
& WARNING (cont inued )
• Only when all tires on the vehicle are filled to the correct pres­
sure, the tire pressure monitoring system* can work correctly.
• The use of incorrect tire pressure values can lead to accidents or
other damage . Therefore it is essential that the driver observe the
specified tire pressure values for the tires and the correct pres­
sures for the function of the tire pressure monitoring system*.
• Always inflate tires to the recommended and correct tire pres­
sure before driving off .
• Driving with underinflated tires bend more, letting them get
too hot resulting in tread separation, sudden tire failure and loss
of control.
• Excessive speed and/overloading can cause heat build-up,
sudden tire failure and loss of control.
• If the tire pressure is too low or too high, the tires will wear
prematurely and the vehicle will not handle well.
• If the tire is not flat and you do not have to change a wheel
immediately, drive at reduced speed to the nearest service station
to check the tire pressure and add air as required .
0 Note
Driving witho ut valve stem caps can cause damage to the tire valves.
T o preven t this, always ma ke sure that fa ctor y in sta lled val ve s te m
caps on all wheels a re secure ly mounted on the va lve.
c£> For the sake of the environment
Under infla ted ti res will also increase t he fue l cons umption .•
Tires and vehicle Load Limits
T he re are limits to the amo unt of load or weight that a ny vehicle and
any tire c an car ry. A veh icle t hat is ove rload ed w ill not handle well and ..,_
Vehicle care Technical data

________________________________________________ T_ i_ re _ s_ a_ n_d_ w_ h_ e_ e_l _s _ ........
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS) that ill uminates a low tire pres­
sure telltale when one or more of your tires is signif icantly under­
inflated . Accordingly, when the low tire pressure telltale illuminates,
you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under-inflated
ti re causes the tire to overheat and can lead to tire fa ilure. Unde r­
inf lation also reduces fuel efficiency and tire tread life, and may
affect the vehicle's handling and stopping ability.
Please note that the TPMS is not a substitute for proper tire mainte­
nance, and it is the driver's responsibility to maintain correct tire
pressure, even if under -inflation has not reached the level to trigger
illumination of the TPMS low tire pressure te lltale.
Your vehicle has also been equipped with a TPMS malfunction ind i­
cator to indicate when the system is not operating properly. The
TPMS malfunction indicator is combined w ith the low tire pressure
telltale . When the system detects a malfunction, the telltale will
flash for approximate ly one minute and then remain continuously
illuminated. This sequence will continue upon subsequent vehicle
start -ups as long as the malfunction exists.
When the ma lfunction indicator is illum inated, the system may not
be able to detect or signa l low tire pressure as intended. TPMS
ma lfunctions may occur for a var iety of reaso ns, includ ing the instal­
lation of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS from functioning properly. Always check the TPMS
malfunction telltale after replacing one or more tires or wheels on
yo ur vehicle to ensure that the replacement or alternate tires and
wheels allow t he TPMS to continue to funct io n properly .•
Vehicle OP-eration
App lies to vehicl es: wi th t ire p ress ure m onit ori ng syst em
Tire pressure indicator appears
The tire pressure indicator in the instrument cluster
informs you if the tire pressure is too low or if there is a
system malfunction.
Fig. 176 Display:
under inflation
warning
Fig . 17 7 Display:
System malfunction
Using the ABS sensors, the tire pressure monitoring system compares
the tire tread circumference and vibration characteristics of the indi­
vidual tires.
If the pressure decreases in one or more tires, this is indi-
cated in the instrument cluster with a warning symbol and a
message ~ fig. 176 . The driver message in the display goes out after
5 seconds . The driver message can be displayed again by pressing the
I CHECK) button©~ page 8, fig. 2. If on ly one tire is affected, the
display will i ndicate its pos it ion. ._
Vehicle care Do-it-yourselt service iTechnical data

-~_T_ ir_e_ s_ a_ n_ d_ w_ h_e_ e_ ls _______________________________________________ _
The ti re pr essure mon itor ing must be reset in the m enu display each
t im e th e pre ssur es a re adjust ed (e .g . w hen sw itching b etwee n parti al
and full load press ure) o r afte r ch angi ng or r eplac ing a tir e on yo ur
vehicle => page
26 7. You ca n find t he recommen ded tire pr essures
for your veh icle o n th e labe l o n the dr ive r's door pillar=> page
249 .
Tire tread circ umference and vibrat ion characterist ics ca n change and
c a us e a tir e pre ssure w arni ng if:
• t he tire pressure in one o r more tires is to o low,
• t he tire has st ru ctu ral damag e,
• the ti re press ure was changed , wh eels ro tate d or r ep laced but the
TPM S was not re set=> page
267 .
Warning symbols
1..1' Loss of p ress ure in at least on e tir e => & . Check th e tir e or tir es
and rep lace or re pair i f necessary. T he in dicator lig ht (• in th e ins tru­
men t cluster al so illu mina tes=> page
11. Che ck/co rrect the pre s­
sures of a ll four tires an d reset TP MS in t he menu display.
rr :; (T ire Pre ss ure M on itor ing Syst em) Tire pressure! System
malfunction.
I f T ,.;> ap pears a fter swi tc hi ng t he ignition o n or w hile
dr iv ing => page
265 , fig. 177 a nd t he in dic ator lig ht 'in th e i nstr u­
m en t clus ter bli nks fo r ap prox ima tely one minute and th en stays o n,
t h ere is a system ma lf u nct io n. S ee your authorized Audi dealer as
soon as poss ible.
& WARNING
• If the tire pressure indicator appears in the instrument cluster
display, one or more of your tires is significantly under-inflated. Reduce your speed immediately and avoid any hard steering or
braking maneuvers. Stop as soon as possible and check the tires
and their pressures . Inflate the tire pressure to the proper pres­
sure as indicated on the vehicle's tire pressure label=>
page 249.
Driving on a significantly under-inflated tire causes the tire to
overheat and can lead to tire failure. Under-inflation also is likely
to impair the vehicle's handling and stopping ability.
& WARNING (co ntinued )
• The driver is responsible for maintaining the correct tire pres­
sures . You must check the tire pressures regularly .
• Under certain conditions (such as a sporty driving style, winter
conditions or unpaved roads), the pressure monitor indicator may
be delayed.
• Ask your authorized Audi dealer if run-flat tires may be used on
your vehicle. Your vehicle registration becomes invalid if you use
these tires when not permitted. Damage to your vehicle or acci­ dents could also result.
[ i ] Tips
• Th e tire pressu re monito ring system stops wor king when the re is
a n E SP/ABS malfu nct io n.
• U sin g s now c hains may res ult in a system ma lf u n ct io n.
• Tire s with t he ident ification "AO" or "RO" have been specially
m atched w ith yo ur Audi. We recommend usin g onl y these t ires
b ecause they mee t the hig hest standards regard ing safe ty a nd
dr iving charac ter is ti cs when used cor rec tly . Yo ur au thori ze d Audi
dea ler will g lad ly provi de you wi th mor e info rmation. •

llffll.,___F_ u_ s_e _ s_ a_n_ d_ b_u _ l_ b_ s _______________________________________________ _
-Remove the fuse using the clamp a nd replace t he blown
fuse w ith an identical new one .
- Push the two slides to t he rear=>
page 281, fig. 19 4.
Install the f use cov er ca ref ully to prevent wa ter from
enterin g.
The vario us electrical c irc uits are p rotect ed by fus es . The fuses are
clustered in a centralized unit . The unit is located behind the face
pane l at the end of the inst rument pane l. The crank for operat ing the
sunroof in case of a power failure is also stored behind the face panel
=1 page 53.
Two spare fuses and a st icker identify ing the fuses are located on the
inside of the fuse box cover.
You a re well advised to keep a supp ly of spa re fuses in your vehicle .
Fuses with the proper ampere ratings are avai lab le at your authorized
Audi dealer.
& WARNING
Do not repair fu ses and never replace a blown fuse with one that
has a higher amp rating . Th is can cause damage to the electric al
s y stem and a fire .
0 Note
If a new fuse burns o ut agai n af ter shortly h ave yo u have insta lled it ,
have the electrical system checked by your authorized Audi dealer.
[ i J Tips
• The following tab le does not list fuse locations that are not used.
• Some of the eq uipmen t items listed are option al or only available
on certain model configurations .
• Th e crank in the cover is used for eme rgency operation of the
powe r roo f*.•
Fuse Location, Instrument Panel left
Fuses which can be replaced.
Fig.1 95 C ockpi td ri ve r's
side: fuse pan el lay out
Note that the following table i s accurate at the time of going to
pres s and is subject t o change. In the event of discrepancies, the
label on the inside of the cover alway s takes pre cedence.
The power sea ts are p ro te cte d by circuit break ers, whi ch automa ti­
cally reset after a few seconds after the over load has been remedied . ..,_