2010 AUDI A5 COUPE engine coolant

Instruments and warning /indicator lights
Instruments and warning/indicator lights
Instruments
Instrument cluster and controls
The instrument cluster is your central source of informa­
tion .
Fig . 2 Overview of the instrument cluster
CD Coolant temperature gauge .................... . .
0 Tachometer .............. ... ........ .... ..... .
G) Warning/indicator lights .. ... .... ... ... ...... .. .
© [ SET ] button .. .... ... ........ .... .. ...... .... . .
© Disp lay
- Driver information system ............. ... .... .
- Time and date display ..... ........ .... .... .. .
- Odom eter .. ............ ... ........ ......... .
8
9
12
9
18
10
11
©
G)
©
Reset button for trip odometer
Speedometer
Fuel gauge ... .... ... ..... .... .... ... .... ... .• .
[ i ] Tips
11
10
• When swi tching the ignition on, the needles in the instrument
cluster swing upward briefly.
• The illumination for the instrument cluster lights up wh en ever
you switch on the ignition with the
vehicle headlights off. As the
dayligh t fades , the instrument cluster illumina tion likewise dims
automatically and wil l go out completely when the outside light is
very low. This feature is meant to remind you to switch on the head ­
lights when outside light conditions become poor.•
Engine coolant temperature gauge
The engine coolant gauge=> fig . 2 CD only works when the ignition
is on . To prevent damage to your engine , please note the following
important points:
Engine cold
If th e needle is at or close to the bot tom of the gauge, the engine
has not yet reached its operating temperature. Avoid high engine
speeds, heavy engine loads, and heavy throttle app lications.
Normal temperature
When the engine has reached its operating temperature, the needle
will move to the middle o f the gauge and remain ther e. I f t he engine
is working hard at high outside temperatures , the needle may move
higher on the gauge. This is not a cause for concern as long as the
.J L warning light in the instrument cluster display does not illumi -
nate. .,

Warning light in the instrument cluster display -L
If the _L wa rn ing l ight in the ins trument cluste r display flashes, this
can mean one of two things : either the coolant temperature is too
h igh, or the coolan t level is too low ~ page 30.
If t he needle is we ll in the upper area of the gauge, the coolant
temperature is too high.
Stop the vehicle , swit ch the engine off , and
allow it to cool.
If the war ning light comes on again a fter d riv ing a
short distance, contact an authorized Audi dea ler or other qualified
w orksh op.
& WARNING
• Alway s observe the warning in ~ page 263 , "Engine compart­
ment ", before open ing the hood and che cking the engine coolant
level.
• Never open the engine hood if you see or hear steam , or if you
s ee 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 engine coolant .
0 Note
• Mo unting add itiona l lights or accesso rie s in front o f the ai r inlets
reduces the cooling effect of the radiator . At high outside tempera ­
t ures or high engi ne load, the engine coul d overheat .
• T he front spoiler has been designed to properly distribute the
cooling air wh en the vehic le is m oving. If the spoi ler is dam age d,
this could reduce the coo ling effect and the engine could then over­
heat . Ask your a uth oriz e d Audi deale r for assis tance .•
Con tro ls and eq uip­
ment
Instruments and warning /indicator lights
Tachometer (engine rev counter)
T h e ta chometer in dicat es th e engine RPM (r e vo lutio ns per
m in ute s).
If engine RPM drops be low 1,500, you should downshift to the next
low er g ear. The red area at t he end o f the scale indicates ma xim um
permissible engine RPM after the break -in period. Before reaching
this ar ea, move the se lecto r lever to pos ition
D (Drive) or ease y our
foot off the acce lerator peda l.
0 Note
The tachometer needle@~ page 8, fig. 2 should only briefly be in
t he red zone : you c oul d da mage y our engine! The beginning of the
red zone varies depending on the engine .
~ For the sake of the environment
Upshiftin g ear ly saves fu el and reduces engine noise .•
[ S ET ) button
Y o u c an pe rform diffe re n t fu nctio ns w ith this but ton.
Fig . 3 SET button in
the in strument clu ster
The [S ET ] b utto n perfor ms the fo llowi ng fu nc tio ns:
Vehicle care I I irechnical data

With a priority 1 malfunction, a red symbol appears in the upper
center area of the display=:>
page 28, fig. 26. A driver message
appears as well to explain the ma lfunction in more detail. When this
symbo l appears,
three warning tones sound in succession. The
symbol continues to flash until the fault has been corrected.
If
several priority 1 malfunctions are present, the symbols appear in
succession and remain for about 2 seconds .
T he driver warning goes out after about 5 seconds, but it can be
brought up again at any time by pressing the
I SE T]
button.=:>
page 28
LJ Alternator failure =:> page 29
BRAKE
USA model s: =:> page 29
Brake system malfunctio n
--

Ca nad a mod els: =:> page 29
Brake system malfunction
- F-Engine coolant level too =:> page 30
-low/engine coolant temperature
too high
~ Engine oil pressure too low =:> page 31
~,. Refill engin e oil now =:> page 31
~-e Steering ma lfunction =:> page 32
--
©-e Ignition lock malfunction
=:> page 32
Alternator malfunction 0
If the O symbol in the instrument pane l disp lay flashes, then there
is a malfunction in the alternator or the vehicle electronics. A
warning to the driver will appear, too . The driver warning goes out
Controls and equip ­
ment
•
Dr ive r informat ion di spl ay
after about 5 seconds, but it can be brought up at any time by
pressing the
ISETj button again .
Usually, you can still drive to the next dea lership . Turn off all but the
most necessary electrical consumers, since these drain the vehicle's
battery .
0 Note
If the the .JL warning symbol (coolant system ma lfunction) also
lights up on the instrument pane l during the trip=:>
page 30, then
you have to stop immediately and turn off the engine . The coolan t
pump is not working anymore --danger of damage to the engine! •
Brake system malfunction
A malfunction in the brake system must be repaired as
soon as possible.
If the warning /indi cator light BRAKE (USA models)/ (©)
(Canada models) in the i nstrument cluster flashes, there is
a brake sys tem mal funct ion . A driver message appears as
well to explain the malfunction i n more detail. T he driver
warning goes o ut after about 5 seco nds, but it ca n be
br ought up a t any time by p ressing the !SET] button aga in .
S top th e Vehi cle and Che ck the Brak e Fluid
- Stop the vehicle.
- Check the brake fluid level=> page
280 .
-Seek professional assistance if necessary .
Cauti on! Brake m alfun ction (ABS ) G et it s ervi ced
- Drive carefully to the nearest authorized Aud i dealer or
other qualified workshop and have the malfunction
corrected =>
&. .,_
I • •

Driver information display
Parking brake Please get to a repair shop
-If this symbol appears when the vehicle is stationary or
after the ignition is turned on, check to see if the parking
brake can be released. Drive to an authorized Audi dealer
or other qualified workshop as soon as possible and have
the malfunction corrected. If the parking brake cannot be opened, then take it to an expert at an authorized Audi
dealer.
- If the symbol appears while you are driving, it is possible
that the traction control or the emergency brake has
malfunctioned. It is possible that the parking brake
cannot be applied. It is also possible that the parking
brake cannot be released after it has been applied. Drive
to an authorized Audi dealer or other qualified workshop
to have the malfunction corrected.
If the ABS system malfunctions, the ABS warning/indicator light illu ­
minates together with the brake system malfunction warning/indi­
cator light=>& .
& WARNING
• Always observe the warnings in => page 263, "Engine compart­
ment ", before opening the hood and checking the brake fluid.
• Driving with low brake fluid is a safety hazard. Stop the car and
get professional assistance.
• USA models: If the
BRAKE warning light and the warning
light come on together, the rear wheels could lock up first under
hard braking . Rear wheel lock-up can cause loss of vehicle control
and an accident. Have your vehicle repaired immediately by your
authorized Audi dealer or a qualified workshop. Drive slowly and
avoid sudden, hard brake applications.
• Canada models: If the brake warning light (Ci] and the ABS
warning light come on together, the rear wheels could lock up
& WARNING (continued)
first under hard braking. Rear wheel lock-up can cause loss of
vehicle control and an accident. Have your vehicle repaired imme­
diately by your authorized Audi dealer or a qualified workshop.
Drive slowly and avoid sudden, hard brake applications. •
Engine cooling system malfunction _}_
A malfunction in the engine cooling system must be
repaired as soon as possible.
If the _p_ symbol flashes in the display, either the engine
coolant
temperature is too high or the engine coolant level
is too low. A driver message appears as well to explain the
malfunction in more detail. The driver warning goes out
after about 5 seconds, but it can be brought up at any time
by pressing the [ SET] button again.
Switch off engine and check coolant level
- Pull off the road.
- Stop the vehicle.
- Turn off the engine.
- Check coolant level~
page 278.
- Add coolant if necessary ~ page 279.
Continue driving only after the engine coolant
warning/indicator light goes out.
- Contact your authorized Audi dealer for assistance if
necessary.
If the engine coolant level is correct, then the radiator fan may be
the cause of the malfunction. ...

& WARNING
• If your vehicle should break down for mechanical or other
reasons, park at a safe distance from moving traffic, turn off the
engine and turn on the hazard warning lights
=> page 57, "Emer­
gency flashers
A".
• Never open the hood if you see or hear steam or coolant
escaping from the engine compartment -you risk being scalded.
Wait until you can no longer see or hear steam or coolant
escaping.
• The engine compartment of any vehicle is a dangerous area .
Before you perform any work in the engine compartment, turn of
the engine and allow it to cool . Follow the warning stickers
=> page 263, "Engine compartment".
0 Note
Do not continue driving if the -F-symbol illuminates. There is a
malfunction in the engine cooling system -you could damage your
engine .•
Engine oil pressure malfunction 9=::7-
The red engine oil pressure warning symbol requires
immediate service or repair. Driving with a low oil pres­
sure indication is likely to cause severe engine damage.
If the ~ symbol on the display flashes, the engine oil pres­
sure is too low. A driver message appears as well to explain
the malfunction in more detail. The driver warning goes out
after about 5 seconds, but it can be brought up at any time
by pressing the [SET] button again.
Switch off engine and check oil level
- Stop the vehicle.
Controls and equip ­
ment
Driver information display
Turn the engine off.
- Check the brake fluid level=>
page 275.
Seek professional assistance if necessary.
Engine oil level too low
If the engine oil level is too low, add engine oil=> page 275.
Engine oil level correct
If the symbol "t::7-flashes even though the engine oil level is correct,
please seek professional assistance. Do not continue driving . Do not
leave the engine running
idle, either.
[ i] Tips
• The engine oil pressure symbol "t::7-is not an indicator for a low
engine oil level. Do not rely on it. Instead, check the oil level in your
engine at regular intervals, preferably each time you refuel, and
always before going on a long trip .
• The yellow oil level warning indication .,... requires oil refill or
workshop service without delay. Do not wait until the red oil pres­
sure warning
"t::7-starts to flash before you respond to the low oil
level warning . By then, your engine may already have suffered
serious damage. •
Fill engine oil now ~ ..
~-Please replenish oil now
If the ~ symbol lights up, then the oil has to be replenished right
now =>
page 275. •
I • •

Warm and cold
Warm and cold
Deluxe automatic climate control
App lies to vehicles: with deluxe automat ic climate cont ro l
Description
The climate control system can be used to set a comfort­
able temperature inside the vehicle.
The climate control system is a combination of a heating and venti ­
lation system as we ll a cooling system responsible for dehumid i­
fying and cooling the air inside the vehicle.
The au tomatic c limate control system aut omatically mainta ins a
temperature once it has been set. The temperature of the air from
the vents, fan speed (air volume) and ai r distribution are also auto ­
matical ly adjusted . The system also takes into account strong
sun light so that manual adjustment is not necessary. So in almost
a ll cases,
automati c mode offers the best conditions fo r the com fort
of the occupants at all times of the year =>
page 92.
Please n ote the following :
The cooling mode lowers the humidity level inside the vehicle. This
prevents fogging up of the windows.
In the case of high outside humidi ty a nd temperatures,
condensa ­
tio n
can drip from the air conditioning system evaporator and form
a po ol under the vehicle . This is normal and not an indica tion of
leaks!
At low outside temperatures, the fan automatica lly switches to a
higher speed when the coolant reaches a sufficient temperature
except in the defroster position .
When star ting with ful l throttle, the compressor of the au toma tic
climate control system is temporari ly switched off to achieve full
engine power. To ensure engine cooling when the engine is under an extreme
load,
the compressor is switched off at high coo lant temperatures.
Pollutant filter
The pollutant filter (pa rticle fi lter) ensu res that impurit ies in the
outside air (e .g . dust, pollen) and odors are significant ly reduced or
stopped. The air is also fi ltered in recirculation mode .
The pol lutant fi lter e leme nt m ust be changed at the i nterva ls spec i­
fied in the service plan so that the performance of the automatic
cli mate con trol syste m is not impaired.
If the effectiveness of the filter decreases prematurely due to oper ­
ation of the vehicle in areas with significant pollution, the f ilter
e lement must be changed between the speci fied s ervice dates.
K ey recognition
The current automatic climate contro l settings are automatica lly
stored and assigned to the mas ter key .
Energy managem ent
To p revent t he ba ttery from being discharged and t o res to re the
balance of energy, components which require large amounts of
ene rgy are temporarily cut back or switched off=>
page 241.
Heating systems in particu lar require a great deal of energy. If you
notice, for examp le, that the rear window heater is not heating, then
it has been temporarily reduced or switched o ff by
energy manage ­
ment .
These systems are available again as soon as the energy
balance has been restored .
& WARNING
Traffic safety require s all windo ws to be clear of ice , sn ow, and
condensation . Only then c an good visibility be ensured . Famil-
ia rize yourself with the co rre ct operation of the automatic climate
~

The climate controls are a combination of heating, ventilation and
cooling sys tems, which automa tica lly reduce humidity and cool the
air inside your vehic le .
The climate contro l automatically maintains a temperature once it
has been set. The temperature of the air from the vents, fan speed
(air volume) and air distribution are also automatica lly adjusted. The
system also takes into account strong sunsh ine so that manual
adjustment is not necessary . So in almost all cases,
a ut oma tic mode
offers the best co nditions for the comfort of the occupants at all
times of the year~
page 99.
Please note the following :
Turn on the air conditioner to reduce hum idity in the veh ic le. This
a lso prevents the windows from fogging up.
When the outside temperature is high and the air is very humid,
c onden sation from the evaporator may drip under the vehicle . T his
is normal and does no t indicate a leak.
If the outside temperature is low, the fan norma lly on ly switches to
a higher speed once the engine coo lant has warmed up sufficiently .
The air conditioner temporarily switches off when you drive off from a standstill using fu ll throttle to save engine power .
The compressor also switches off if the coolant temperature is too high, so that the engine can be adequately cooled under extreme
loads.
Du st and poll en filte r
The dust and pollen filter (a combined particle filter and activated
cha rcoal fi lter) reduces or prevents outside air pol lut ion (dust, or
pollen) from entering the vehic le .
The dust and pollen filter must be changed at the intervals specified
in your Maintenance booklet, so that the air conditioner can prop­
erly work .
I f you drive your vehicle in an area with a high degree of a ir pollu­
tion, the filter may need to be changed more frequent ly than speci-
Controls and equip ­
ment
W arm and cold
fied in your Audi Warranty & Maintenance book let. If in doubt, ask
your authori zed Aud i Service Advisor for advice .
Key recognition
The cu rrent climate contro l settings are automatically stored and
assigned to the remote key
Energ y mana gement
To prevent the battery from being discharged and to restore the
balance of energy, components which require large amounts o f
energy are temporarily cut back or switched off~
page 241.
Hea tin g systems in particu lar req uire a great dea l of energy. I f you
notice, for examp le, that the rear window heater is not heating, then
it has been temp orarily cut back or switched off by
energy manage ­
ment .
These systems are available again as soon as the energy
balance has bee n res tored .
& WARNING
Redu ced vi sibilit y is dangerou s and c an cau se a ccidents .
• For safe driving it is very important th at all windows be free of
ice , snow and conden sation .
• Completely familiari ze yourself with the proper use and fun c­
tion of the heating and ventilation sy stem and e speci ally how to
defog and defrost the windo ws.
• Never use the wind shield wiper /w asher sy stem in freezing
w ea ther until you have warmed the wind shield first , using the
heating and ventil ation sy stem . The wa sher solution m ay fre eze
on the w ind shield and r edu ce v isibilit y.
0 Note
• If you suspect that the climate contro l system has been
damaged, switc h the system off to avoid fur ther damages, and have
it inspected by a qualified dealership. .,_
I • •

___________________________________________________ O _n_ t_h _ e_ r_ o _ a_ d __ lfflll
& WA RN IN G ( continu ed )
• Never le ave children or per son s requiring a ssis ta nce unat­
te nded in the veh icle . The do ors can be locked u sing the remote
tr ansmitter, pre venting people from es caping fro m the vehi cle on
their own in t he event of an emergen cy. D epending on the time of
year , people inside the veh icle can be e xpo sed to ver y high or very
low t emperature s.
• Never remove the ignit ion key from t he ig nition loo k while the
v ehic le is moving . Othe rwi se, the steering lock could sudden ly
e ngage and you w ould not be able to steer the ve hicle .
0 Note
• In the event of a malfunction in the electronic ignition lock a
symbol in the ins trument cluster flashes with the message
Ign ition
l ock defe cti ve .
• Avo id high engine speeds, fast acce leration or heavy engine
loads while the engine is sti ll cold. This could damage the engine.
To avoid unnecessary engine wear and to reduce exhaust emis ­
sions, do not let your vehic le stand and war m up. Be ready to drive
off immediate ly after starting your vehicle . Maintain moderate
speed until the engine is completely warm . Remember, the engine
performs best a t operating temperature .
[ i J Tip s
• If the key cannot be removed from the ignition lock, you have to
pul l the mechanica l key out of the master key in orde r to be ab le to
lock the vehic le The vehicle can be locked with the mechanical key
=> page 40.
• I f you open the driver's door with the ignition switched on , a
buzzer sounds and the message
Ignition i s on appears in the instru ­
ment cluster display. Switch the ignition off .•
Controls and equip ­
ment
Stopping the engine
Bring t he vehicle to a full s to p.
- Automatic transmission*: Move t he selector lever to the P
or N posi tion.
Press on the ignition key . The engine is turned off.
Emergen cy off
If it is necessary in unusual circumstances, the engine can be
switched off while the vehic le is moving. The engine will be
switched o ff if you press on the key for an extended pe riod .
& WARNING
• Nev er turn off the engine until the vehicle h as come t o a
c omplete stop.
• The b ra ke boo ster and se rvot ronic onl y work w hen the eng ine
is running . With the ignition turned off , you have to app ly mo re
force when ste ering or br aking . Since you cannot stee r and stop
norm ally, th is c an le ad to a ccidents and serious injurie s.
• The rad iator f an ca n cont inu e to ru n fo r up t o 10 minute s eve n
after you have turned off the engine and remo ved the ign ition ke y.
The r adi ator fan can als o tu rn on ag ain if the engine coolant he ats
up be cau se of inten se sunl ight or heat build-up in the engine
compartment.
0 Note
Do not s top the engine immed iately after hard or extended driving .
Keep the engine running for approxima te ly two minut es to prevent
excessive heat bui ld-up. •
I • •