2012 AUDI A5 COUPE coolant

10 Instruments and warning/indicator lights
Instruments and warning/indicator Lights
Instruments
Instrument cluster and controls
The instrument cluster is your central source of information.
Fig. 3 Overv iew of the inst rument cluster
CD Coolant temperature gauge .. .
@ Tachometer ............... .
@ Warning/indicator lights .. .. .
© IS ETlbutton ............ .. . .
® Display
- Driver information system .. .
- Time and date d isplay .. .. .. .
- Odometer ............. .. .
@ Reset button for trip odometer
(z) Speedometer
@ Fuel gauge . ......... .. .. .. .
@ Tips
10
11
13
11
19
12
12
12
12
- When switching the ignition on, the nee­
dles in the instrument cluster swing up­
ward briefly.
- The illumination for the instrument clus­
ter lights up whenever you switch on the
i gnition with the
vehicle headlights off .
As the daylight fades, the instrument
cluster illumination likewise dims auto­
matically a nd will go out completely
when the outside light is
very low. This
feature is meant to remind you to switch
on the headlights when outside light
conditions become poor.
Engine coolant temperature gauge
The engine coolant gauge q page 10, fig. 3 CD
only works when the ignition is on . To prevent
damage to your engine, please note the fol­
lowing important points:
Engine cold
If the needle is at or close to the bottom of
the gauge, the engine has not yet reached its
operating temperature. Avoid high engine
speeds, heavy engine loads, and heavy throt ­
tle app lications.
Normal temperature
When the engine has reached its operating
temperature, the needle will
move to the mid­
dle of the gauge and remain there . If the en­
gine is working hard at high outs ide tempera­
tures, the needle may
move higher on the
gauge. This is not a cause for concern as long
as the . warning light in the instrument
cluster display does not illuminate. .,..

Instrument s and warning /indicator lights 11
Warning light in the instrument cluster
display
If the. warning light in the instrument clus ­
ter disp lay flashes, this can mean one of two
things: either the coolant
t empera ture is too
high, or the coolant
level is too low
¢ page 31.
If the needle is well in the upper area of the
gauge, the coolant temperature is too high.
Stop the vehicle, switch the engine off, and
allow it to cool.
If the warni ng light comes on
again after driving a short distance, contact
an author ized Audi dealer or other qualif ied
workshop.
_& WARNING
- Always observe the warning in
¢ page 230, Engine compartment, be­
fore opening the hood and checking the engine coolant level.
- Never open the engine hood if you see or hear steam, or if you see engine coolant
dripping from the engine compartment.
You could burn yourself . Let the engine
cool off first so that you cannot hear or
see any steam or e ngine coolant .
CD Note
-Mounting additional lights or accessories
in front of the a ir inlets reduces the cool­
ing effect of the rad iator. At high outside
temperatures or high engine load, the
engine could overheat .
- The front spo iler has been designed to
properly distribute the cooling air when
the veh icle is moving. If the spoiler is
damaged, this could reduce the cooling
effect and the engine co uld then over­
heat. Ask you r aut horized Aud i dealer for
assistance.
Tachometer (engine rev counter )
The tachometer indicates the engine RPM
(revolutions per minutes).
If engine RPM drops be low 1,500, you should
downshift to the next lower gear . Th e red area at
the end of the scale indicates maximum
perm issible eng ine RPM after the break-in pe­
riod. Before reaching this area, move these­
lector lever to position
D (Drive) or ease your
foot off the accelerator pedal.
CD Note
The tachometer needle @ ¢ page 10,
fig. 3
should on ly briefly be in the red
zone: you cou ld damage your eng ine! The
beginn ing of the red zone var ies depend-
i ng on the engine.
@) For the sake of the environment
Upshifting early saves fuel and reduces en­
gine noise .
~button
You can perform different func tions with this
button.
Fig . 4 SET but ton in t he in strumen t cl uster
T he !S ET ! button performs the following func ­
tions :
Switching on time, date, temperature
display, and odometer
The display appea rs fo r approximately 30 sec­
onds when you press the
! S ET ! button¢ fig . 4
with the ignit ion off.
Starting the Auto -Check sequence
The Auto-Check system ¢ page 28 constant-
ly mon itors certa in individua l functions and
components of the vehicle when the ignition
is turned on and when the vehicle is moving.
With the ign ition turned on, you can start the
"Auto-Check sequence" by pressing the
i S ET i liJJ,,

30 Driver in formation d isplay
Canada m odel s:
Bra ke system malfunction
c:>page30
Engine coolant level too low/en­
gine coolant temperature too
high
c:>page 31
Engine oi l pressure too low
c:>page 31
Refill engine oil now
c:>page32
Steering malfunction
c:>page 32
Ignition lock malfunction
c:>page32
0 Alternator malfunction
If the . symbol in the instrument panel dis­
p lay flashes, the n there is a malfunc tion in the
a lt ernator or the vehicle electron ics. A warn­
ing to the driver will appear, too. The driver
warning goes out after about 5 seconds, but it
can be brought up at any time by pressing the
ISETI button again.
Usually, you can still drive to the next dea ler­
ship. T urn off all b ut the most necessary elec­
tr ica l cons umers, since these dra in the veh i­
cle's battery.
(J;) Note
If the . war ning symbol (coolant system
malfunction) also lights up on the instru­
ment panel during the trip
c:> page 31,
then you have to stop immediately and
turn off the eng ine. The coolant pump is
not working anymore--danger of damage
to the eng ine!
BRAKE/ Brake system malfunction
A malfunction in the brake system must be
repaired as soon as possible .
If the warn ing /indicator light-(USA
models)/ . (Canada models) in the instru- me
nt cluster flashes, there is a brake system
malfunction. A driver message appears as
we ll to exp la in the ma lfunction in more de ­
ta il. The dr iver warning goes out after about S
seconds, but it can be brought up at any time by press ing the
ISE TI button again .
Stop the Vehicle and Check the Brake
Fluid
.,. Stop the vehicle .
.,. Check t he brake fluid level
c:> page 246 .
.,. Seek professional assistance if necessary .
Warning ! Fault in br ake system . Contact
workshop
.,. Drive ca refully to the nearest authorized
Aud i dea le r or other q ualified workshop and
have the malfu nction corrected
c:> &_ .
Parking b ra ke Plea se get to a repair shop
.,. If this symbol appears when the vehicle is
stat ionary or after the ignition is t urned on,
check to see if the par king brake can be re­
leased. Dr ive to a n author ized Audi dealer or
other qualified workshop as soon as possi­
b le and have the malfunc tion cor re ct ed. If
t he par king b rake cannot be opened, t hen
take it to an expe rt at an authorized A udi
dea ler .
.,. If the symbo l appea rs whi le yo u are d riving,
it is possible that the traction contro l or the
emergency brake has malfunctioned. It is
possible that the parking brake cannot be
app lied. It is also possible that the parking
brake cannot be released after it has been
app lied. Drive to an autho rized Aud i deale r
or other qualified workshop to have t he mal­
fu nction corrected.
If the ABS system malfu nctions, the ABS
warning/indicator light illuminates togethe r
with the brake system ma lfunction w arning/
i ndica to r li ght
c:> .&..
A WARNING
-A lways observe t he warn ings in
c:> page 230, Engine compartment, be­
fore open ing the hood and check ing the
brake fluid.

-Driving wi th low brake fluid is a safe ty
haza rd. S to p the car and get professional
assistance.
- USA models: If the - warning light
and
the m warning light come on to­
gether, the rear wheels could lock up
first under hard braking. Rear wheel lock­
up can cause loss of vehicle control and
an acc ident. Have your vehicle repaired
immediately by your authorized Audi
dealer or a qualified workshop. Dr ive
slowly and avoid sudden, ha rd b rake ap­
plications.
- Canada models: If the brake warn ing
ligh t. and the ABS warning light
[i]
come on together, the rear wheels could
lock up first under hard brak ing. Rear
wheel lock- up can cause loss of veh icle
control and an accident. Have your vehi­
cle repaired immediately by your author­
ized Aud i dealer or a qualified workshop .
Drive slowly and avo id sudden, hard
brake applicat io ns.
-L Engine cooling system malfunction
A malfunction in the engine cooling system
must be repaired as soon as possible .
If the . symbol flashes in the display , e ither
the eng ine coolant
temperature is too h igh or
the eng ine coolant
level is too low. A dr iver
message appears as we ll to explain the mal­
f u nction in more detail. The drive r warning
goes o ut after abo ut S seconds, but it c an be
b rought up at any time by press ing the
!SE Tl
button again.
Sw itch off engin e and check coolant lev el
.,. Pu ll off the road .
... Stop the veh icle .
.,. Turn off the engine .
.,. Check coolant level¢
page 244.
.,. Add coolan t if necessa ry ¢ page 245 .
.,. Contin ue driving only after the eng ine cool ­
ant war ning/indicato r light goes o ut.
... Contact your a uthorized Audi dea ler for as ­
s istance if necessary .
Driver information di spla y 31
If the engine coo lant level is correct, then the
radiator fan may be the ca use of the malfunc­
t ion .
_& WARNING
-If your vehicle should brea k down for
mechanical or other reasons, park at a
safe distance from moving traffic, turn
off the eng ine and tu rn on the haza rd
warn ing lights
~ page 52, Em ergency
flashers.
-
- Never ope n the hood if you se e or hear
steam or coo la nt escaping from the en­
gine com partmen t -yo u ris k being scald ­
e d . Wai t until yo u ca n no longer see o r
hea r steam o r coolan t escap ing.
- Th e engine compa rtme nt o f any vehicle
is a dangerous area. Be fore you perform
any wo rk in the engine compartmen t,
tur n of the engine and allow it to coo l.
Follow the warn ing stickers ¢
page 230,
Engine compartment .
(D Note
Do not continue driv ing if the . symbo l
ill uminates . There is a malfunction in the
engine cooling system -you could damage
your engine.
"t::7: Engine oil pressure malfunction
The red engine oil pressure warning symbol
requires immediate service or repair. Driving
with a low oil pressure indication is likely to
cause severe engine damage.
If the . symbo l on the d isplay flashes, the
engine oil pressure is too low. A driver mes­
sage appears as well to exp la in the malfunc­
tion in more detail. The driver warning goes
o ut after about 5 seconds, b ut i t can be
brought up at any t ime by pressing the
~ IS- ET~ I
bu tton aga in .
Switch off eng ine ! Oil pr essure too low
... Stop the vehicle .
.,. Turn the engine off.
.,. Check the engine oi l level ¢
page 242.

Warm and cold Deluxe automatic
climate control
Description
Appl ies to vehicles: with deluxe automatic cl imate contro l
The climate control system can be u sed to set
a comfortable temperature inside the vehicle.
The climate control system is a comb inat ion
of a heating and ventilation system as well a
coo ling system respons ible for dehum idifying
and cool ing the a ir inside the vehicle.
The automat ic climate co ntrol system auto­
mat ica lly ma inta ins a temperature once it has
been set. The temperature of t he a ir from the
ve nts, fan speed (ai r volume) and air dis trib u­
tion are also au toma tic ally adjusted . The sys ­
tem a lso takes into account strong sun light so
that manua l adjustment is not necessary . So
in almost a ll cases,
automatic mode offers
the best cond itions for the comfort of the oc­
cupa nts at all t imes of the year
c;, page 81 .
Please note the following:
The cooling mode lowers the hum idi ty leve l
ins ide the veh icle. This p reven ts fogging up of
the windows .
I n t he case of high outside humidity and tem­
pe rat ures,
condensation c an drip from the air
conditioning sys tem evaporator and form a
pool under the vehicle. This is normal and not
an indication of leaks!
A t l ow ou ts ide temper atures, the f an au to­
mat ica lly switches to a higher speed when the
coolant reac hes a sufficient temperature ex ­
cept in the defroster pos ition.
W hen sta rting with full thro ttle, the compres­
sor of the automatic clima te con trol sys tem is
temporari ly switched off to achieve f ull en­
g ine power.
To ensure eng ine cooling when the eng ine is
under an extreme load, the compressor is
switched off at high coolant temperatures .
Warm and cold 79
Pollutant filter
The poll uta nt fi lter ( part icle fi lter) ensures
that imp urities in t he outside air (e .g. dust,
po llen) and odors are significantly reduced or
stopped . The air is also fi ltered in recircu lation
mode.
T he poll utant fi lter element m ust be changed
at the intervals specified in the service p lan so
that the perfo rmance of the a utomatic cli­
mate control system is not impaired.
If the effectiveness of the filter decreases pre ­
maturely due to operation of the vehicle in
areas with significant poll ution, the filter e le­
ment must be changed between the specified
serv ice dates.
Key recognition
T he c urrent automatic climate contro l set ­
tings are automatically stored and assigned to
the maste r key .
Energy management
To p reven t the bat tery from being discharged
and to res to re the ba lance o f energy, compo ­
nents which require large amo unts o f energy
are temporarily cut bac k or switched off
¢ page 211. Heating systems in particular re ­
quire a great deal of energy. If yo u notice, for
example, that the rear window heater is not
heating, then it has been temporarily reduced
o r switched off by
energy management.
T hese systems a re available again as soon as
the ene rgy balance has been res to red.
.8, WARNING
T raff ic safety re quires all windows to be
clear of i ce, snow, and con densa tion . Only
the n can good v is ib ility be ensured . Famili­
a rize yourself w ith the correct operation of
the automatic climate contro l system as
well as the proper procedure for defog­
g ing/defrosting the windows .
@ Note
-If you s usp ect that the automatic cli ­
mate contro l system has been damaged,
-
sw itch t he system off to avoid further .,_

84 Warm and cold
With this setting, you attain maximum com­
fort in the least amo unt of time. Change this
setting, as des ired, to meet yo ur persona l
needs.
The climate controls are a combination of heating, venti lation and cooling systems,
which automatica lly reduce hum idity and cool
the air inside your vehicle.
The climate control automatically maintains a
temperature once it has been set . The tem­
perature of the air from the vents, fan speed
(air volume) and air distribution are also auto­
mat ically adjusted . The system also takes into
account strong sunshine so that manual ad­
justment is not necessary . So in almost all
cases,
autom atic mo de offers the best cond i­
tions for the comfo rt of the occupants at all
times of the year¢
page 86.
Please note the following :
Turn on the air cond itioner to reduce hum idity
in the vehicle . Th is also prevents the w indows
from fogging up.
When the outside temperature is high and the
a ir is very hum id,
conden sation from the
evaporator may drip under the vehicle. This is normal and does not indicate a leak .
If the outside temperature is low, the fan nor­
mally only switches to a h igher speed once
the eng ine coolant has warmed up sufficient­
ly .
The air conditioner temporarily switches off
when you drive off from a standstill using full
thrott le to save engine power.
The compressor also switches off if the cool­
ant temperature is too high, so that the en ­
g ine can be adequately coo led under extreme
loads.
Du st and pollen filter
The dust and pollen filter (a combined particle
fi lter and activated charcoal filter) reduces or
prevents outside air pollut ion (dust, or po llen)
from entering the vehicle . T
he dust and po llen fi lter must be changed at
the interva ls specified in your Mai ntenance
booklet , so that the air conditioner can prop­
erly work.
If you drive your vehicle in an area with a high
degree of air pollution, the filter may need to
be changed more frequently than specif ied in
your Audi Warranty
& Maintenance book let. If
in doubt, ask your authorized Audi Service Ad­
visor fo r advice .
Key recognition
The current climate contro l settings are auto ­
matically stored and assigned to the remote
key
Energy management
T o prevent the battery from being discharged
and to resto re the ba lance of energy, compo ­
nents which require large amo unts of energy
are temporarily cut back or switched off
¢ page 211. Heat ing systems in particular re­
quire a great deal of energy. If you notice, for
example, that the rear w indow heater is not
heating, then it has bee n tempora rily cut back
o r switched off by
energy managemen t.
These sys tems are available again as soon as
the energy balance has been resto red.
.&_ WARNING ~
Reduced visibi lity is dangerous and can
cause accidents .
-
- For safe d riving it is very impor tant that
all windows be free of ice, snow and con ­
densation .
- Comp lete ly fam iliari ze yourse lf with the
proper use and function of the heating
and venti lation system and especially
how to defog and defrost the w indows.
- Never use the windshield wipe r/washer
system in freez ing weather unt il you
have warmed the windshie ld first, using
the heating and ventilation system. The
washer sol ution may freeze on the w ind-
shie ld and red uce visib ility.
~

94 On the road
@ For the sake of the environment
To avoid unnecessary engine wear and to reduce exhaust emissions, do not let your
veh icle stand and warm up. Be ready to
drive off immediately after start ing your
veh icle. Maintain moderate speed until the
engine is comp letely warm. Remember,
the engine performs best at operating
temperature.
@ Tips
- If the key cannot be removed from the
ignition lock, you have to pull the me­
chanical key out of the master key in or­
der to be ab le to loc k the vehicle The ve­
hicle can be locked with the mechanica l
key
~page 39.
-If you open the driver's door wi th the ig­
nit ion switched on, a buzzer sounds and
the message
Ignition i s on appears in
the instr ument cluster disp lay . Switch
the ignition off.
Stopping the engine
> Bring the vehicle to a full stop.
> Automatic transmission*: Move the selec ­
tor lever to the
P or N position .
> Press on the ignition key. The engine is
turned off.
Emergency off
If it is necessary in unusual circumstances, the
engine can be switched off wh ile the vehicle is
mov ing . The engine will be switched off if you
p ress on the key for an extended period .
_& WARNING
-Never turn off the eng ine unti l the vehi­
cle has come to a complete stop.
- T he brake booster and se rvotronic only
work when the engine is running. With
the ignition turned off, you have to apply
more force when steering or braking .
Since you cannot steer and stop norma l­
ly, this can lead to accidents and serious
injuries. -
The radiator fan can continue to run for
up to 10 minutes even after you have
turned off the engine and removed the
ignit ion key. The radiator fan can also
turn on again if the engine coolant heats
up because of intense sunlight or heat
bu ild-up in the engine compa rtment.
(D Note
Do not stop the engine immediately after
hard or extended driving . Keep the engine
runn ing for approximate ly two minutes to
prevent excess ive heat bu ild-up .
Starting and stopping
the engine with
convenience key
St t· th ng ·n ith the
button
Applies to vehicles: wit h co nvenience key
This button switches on the ignition and
starts the engine.
Fig. 106 Conven ience key: STAR T ENGINE STOP button
> Manual transmission: Fully depress the
clutch pedal and move the shift lever to the
neutral posit ion.
> Automatic transmission*: Step on the brake
pedal and move the selector leve r to
P or N
~ .&. -
> Pr ess on the !START ENGINE STOPI b utton
~ fig. 106 -the engine will start.
By pressing the
! START ENGINE STOPI button
without depressing the clut ch or the brake
peal, the ignition is switched on and switched
off by pressing it again.
IJi,,

96 On the road
-If the engine has been under heavy load
for an extended period, heat builds up in
the engine compartment after the en­
gine is switched off -there is a risk of
damaging the engine. Allow the engine
to run at idle for about 2 m inutes befo re
switching it off .
@ Tips
If you open the driver's door with the igni­
tion switched on, a buzzer sounds and the
message
Ignition i s on appears in the in­
strument cluster display . Switch the igni­
tion off.
Switching engine off with the button
Applies to vehicles: w it h conve nience key
.,. Bring your vehicle to a complete stop.
.,. Automatic transmission* : Move the selector
lever to the
P or N pos ition.
> Pre ss the I STAR T ENGINE STOP I button
c::>page 94, fig. 106 .
Emerg enc y OFF function
If necessary, the engine can be switched off
with the selector lever in the
R , D or S* posi­
tions. To do so, step on the brake pedal and press and hold the
I START ENGINE S T OP I but­
ton (veh icle speed must be less than 6 mph/
10 km/h.
& WARNING
- Never turn off the eng ine unti l the vehi­
cle has come to a comple te stop.
- The brake booste r and se rvotronic only
work when t he engine
is running. With
the ignition turned off, yo u have to apply
more force when steering or braki ng .
Since you cannot steer and stop norma l­
ly, this can lead to accidents and serious
injuries.
- For safety reasons, you should always
park your vehicle with the se lector lever
in P. Otherwise, the veh icle could inad­
vertently roll away. -
After the engine has been switched off,
the radiator fan can cont inue to run for
up to 10 minutes -even with the ignition
switched off. It can also sw itch on again
after some t ime if the coolant tempera­
ture rises as the result of a heat bu ildup
or if the engine is hot and the engine
compartment is additionally heated by
the s un's rays .
Q;) Note
If the engine has been under heavy load
fo r an extended period, heat bu ilds up in
the engine compartment after the engine i s switched off -there is a r isk of damag ing
the engine. Allow the engine to run at id le
for abo ut 2 minutes before switching it
off .
Electromechanical
parking brake
Operation
The ele ctromechanical parking brake replaces
the hand brake.
Fig . 107 Center console: Parking b rake
> Pull on the switch @ c::> fig. 107 to apply the
parking brake. The indicator light in the
sw itch illuminates .
.,. Step on the brake pedal or the accelerator
pedal and press the switch at the same t ime
to re lease the park ing brake. The indicator
light in the sw itch goes out .
Your vehicle is equipped with an electrome­ chanical parking brake . The parking brake is
designed to p revent the veh icle from rolling
u nintentionally and replaces the hand b rake. .,..