2012 AUDI A5 COUPE radiator cap

-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.

238 Check ing and filling
- Apply the parking brake.
- Move selector lever of automatic trans- mission to "P" (Park); put manual trans­
mission in Neutral.
- Always let the engine coo l down . Hot
components will burn skin on contact.
- To reduce the risk o f being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment. Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood.
- Keep children away from the engine com­
partment .
- Never spill flu ids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxili­
ary electr ic fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap when the eng ine is still warm. The cool­
ant system is pressur ized and hot coo l­
ant could spray out .
-Protect your face, hands and arm from
steam or hot eng ine coolant by placing a
thick rag over the cap when you open the coolant reservoir .
-If work on the fuel system or the electri­
cal system is necessary :
- A lways disconnect the battery.
- Never smo ke or work near heaters or
open flames . Fluids in the engine com ­
partment co uld start a fire.
- Keep an approved fire ext inguisher im­
mediately available.
- T o avoid ele ctrical shock and persona l in ­
jury while the engine is running or being
started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repa ir
with the engine running:
- Fi rst, fully apply the parking bra ke,
move se lec to r l ever o f automat ic trans- mission to
"P" (Park); put manua l
transmission in Neutra l.
- Always use extreme caution to p revent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­ ing hot parts. Tie back hair before
starting, and do not wea r clothing that
will hang o r droop into the engine.
- M inim ize exposure to em iss ion and
chemical hazards
~ &, .
A WARNING
=
Ca lifo rnia Proposition 65 Warning:
- Engine exhaust, some of its const ituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cance r and birt h de­
fects and reproductive harm. In addition,
certain fl uids contained in veh icles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and
b irth defects or other reproductive harm.
- Battery posts, terminals and related ac­
cessories conta in lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
(D Note
When adding flu ids, always make sure that
they are poured into the proper conta iner
or fil ler opening, otherwise serious dam­
age to vehicle systems w ill occur.
@) For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regular ly. If
you see spots from oil or o ther ve hicle flu­
i ds, have your vehicle insp ected by a n au­
thorized Audi dealer.

When the engine is warm, the level may be
slightly above the
"MAX" marking.
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration ¢ page 239.
To obtain an accurate reading, the engine must be switched
off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System ¢page
31 will
blink until you add coolant and the level has
been restored to normal. Even though there is
an electric coolant level sensor, we still rec­
ommend you check the coolant level from
time to time.
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cool­
ing system should be inspected immediately
by your authorized Audi dealer.
It is not
enough merely to add coolant.
In a
sealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheating.
& WARNING
The cooling system is under pressure and
can get very hot. Reduce the risk of scald­
ing from hot coolant by following these
steps.
- Turn
off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag.
- Turn the cap slowly and very carefully in
a counter-clockwise direction while ap­
plying light, downward pressure on the
top of the cap.
- To avoid being burned, do not spill anti­ freeze or coolant on the exhaust system or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­
ant can catch fire.
Checking and filling 245
@ Note
Do not add any type of radiator leak seal­
ant to your vehicle's engine coolant. Add­
ing radiator repair fluid may adversely af­
fect the function and performance of your
cooling system and could result in damage not covered by your New Vehicle limited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS ¢ & in Working in the engine compart ­
ment on page 23
7.
.,. Turn off the engine .
.,. let the engine cool down.
.,. Place a thick rag over the coolant expansion
tank ¢ page
244, fig . 206 and carefully turn
the cap counter-clockwise ¢
&_.
.,. Add coolant.
.. Twist the cap on again tightly.
Replacement engine coolant must conform to
exact specifications ¢ page
244, Coolant.
Even in an emergency, if coolant addi-
tive G12++, G12+ or G12 is
not available, do
not use a different additive. Use plain water
instead until you can get the correct additive
and can restore the correct ratio. This should
be done as soon as possible.
If you have lost a considerable amount of
coolant , then you should add cold antifreeze
and cold water only when the engine is cold.
Always use new engine coolant when refilling.
Do not fill coolant above the "MAX" mark. Ex­
cess coolant will be forced out through the pressure relief valve in the cap when the en­
gine becomes hot.
A WARNING
- The cooling system is under pressure and
can get very hot. Reduce the risk of ...,
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246 Checking and filling
sca lding from hot coolant by following
these steps .
- Turn off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping flu id and steam by cover ing
the cap with a large, thick rag.
- Turn the cap slowly and very carefully
in a counter-clockwise direction while
applying lig ht, downwa rd pressure on
the top of the cap.
- To avo id being burned, do not spill an­
tifreeze or coolant on the exhaust sys­
tem or hot engine parts . Under certain
conditions, the ethylene glyco l in en­
gine coolant can catch f ire.
- Antifreeze is poisonous . Always store an­
tifreeze in its or iginal container and we ll
out of the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a proper con­
tainer clear ly marked "poison".
@ Note
- Coolant pollutes the environment and
could cause an engine fire . Excess coo l­
ant will be forced out through the pres­
sure relief valve in the cap when the en­
gine becomes hot.
- If, in an emergency, only water can be
added, the correct ratio between water
and antifreeze
c::> page 244 must be re­
stored as soon as possible .
@ For the sake of the environment
Drained coolant should not be reused. Al­
ways dispose of used coolant while observ­
ing all environmental regulations .
Radiator fan
The radiator fan switches on automatically by
itself
T he radiator fan is driven by the engine via the
V-belt . The viscous clutch regulates the speed
of the fan according to the temperature of the
coolant. An auxiliary electric
radiator fan* switches on
and off depend ing on coolant temperature
and other vehicle operat ing condit ions .
After yo u sw itch the engine off, the auxiliary
f an can continue running for up to 10 minutes
- even with the ignit ion off. It can even switch
on again later by itself
c::> &., if
- the temperature of the engine coolant rises
due to the heat build-up from the engine in
the engine compartment, or
- the engine compa rtment heats up because
the vehicle is parked in i ntense sunlight.
_& WARNING
- To reduce the risk of personal injury nev­
er touch the radiator fan.
- The auxiliary electric fan is temperature
controlled and can sw itch on suddenly
even when the engine is not running.
- The auxiliary radiator fan switches on au­
tomatically when the engine coo lant
reaches a certain temperature and will
continue to run until the coolant temper­
ature drops .
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
Fig. 207 E ngin e compart men t: B rak e fluid rese rvoir
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS c::> A in Working in the engine compart-
ment on p~e 237.
~

Index 303
-----------------------------------.......
Unleaded fuel ..................... 232
What should I do with an old battery? . 251
Environmental note
Rear window defogger . . . . . . . . . . . 83, 88
Roof rack .. .. ........... .. .. .. .... 74
EPC
refer to Electronic power control .... .. 15
E SP
refer to Electronic stabili zation program
(ESP) .... .. ................. .. .... 15
Event Data Recorder (EDR) ............ 204
Exhaust tail pipes Cleaning . .. ............. .. .. .. .. . 226
Expansion tank ............ .... .. ... 244
Exterior mirrors
Adjusting . ................. ... .... 57
Dimming ... ................ ... .... 58
Heating .. .. ............. .... .. .. .. 57
Eyeglasses compartment .... .. .. .. .. .. 77
F
Fan
Deluxe automatic climate control .. .. .. 81
Deluxe automatic climate control plus . . 87
Radiator ... .. .............. ... ... 246
Fastening Booster seats ............ .. .. .. .. . 194
Convertible child safety seats . .. .. .. . 192
I nfant seats ............. .... .. .. . 191
Flat tire Changing .. .. ........ ... .. .. .. .. . 274
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . 149
F og lights . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . 149
For the sake of the environment
Gasoline fumes and the environment .. 234
Reducing engine noise by early upshift-
ing .. .. .. .. .. .. ........... .. .. .... 11
Refueling .. .. ........ ... .. .. .. .. . 234
Saving fuel by early upshifting .. . ... .. 11
Front airbags
Description . .. ........... .. .. .. ... 166
Howtheywork .................... 171
Fr ontal collisions and the laws of physics 155
Front ashtray ............... ... ... ... 75 Front seats
. . . . . . . . . . . . . . . . . . . . . . . . . 61
Adjusting ..... .... ............... 146
Child restraints in the front seat .... .. 163
Convenience side view . . . . . . . . . . . . . . . 66
Symmetrical seat positions . . . . . . . . . . . 66
Fuel Additives ... ..... .. ............... 232
Blended gasoline ... .............. . 232
Consumption .. .. .... ......... .. .. . 22
Filler neck . .. .. .. .. . .............. 233
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Gasoline .. .. .. .. .. . .. .... ........ 232
Gasoline additives .. .............. . 233
Octane rating .. .. ................. 232
Recommendation . .... ......... .. .. 232
Refuelling ..... .. .. ............... 234
Reserve ....... .... ................ 12
Tank capacity .................... . 292
Unlocking the fuel filler flap by hand .. 235
Fuel economy messages (efficiency pro-
gram) .... .. .. .. .. .. . .............. . 26
Fuel filler flap Unlocking the fuel filler flap by hand .. 235
Fuel supply too low ................. . 35
Fuses Assignment . . . . . . . . . . . . . 280, 281, 282
Replacing ........................ 280
G
Garage door opener (Homelink ®) .. .. .. 140
Gas discharge lamps .. ..... .......... 283
Gauges Engine coolant temperature . . . . . . . . . . 10
Fuel gauge .. .. .. ............... .. . 12
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 11
Gear recommendation .............. .. 25
Gearshift indicator . .. ... ....... ...... 20
Gearshift lever 6-speed manual transmission ...... .. 126
General illustration Instruments and controls .......... ... 8
Glossary of tire and loading terminology 253
Glove compartment . . . . . . . . . . . . . . . . . . 77
Gross Vehicle Weight Rating (GVWR) . .. 290
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