2011 AUDI A5 COUPE coolant level

Warning light in the instrument cluster display-1-
If the _L warning light in the i nstrument clus ter display flashes, this
can mean one of two things: either the coo lant
temperature is too
high, or the coolant
level is too low ~ page 34 .
If the needle is well in the uppe r area of the gauge, the coo lant
temperature is too high.
Stop the vehicle, switch the engine off, and
allow it to cool.
If th e war ning light comes o n ag ain af ter driv ing a
short distance, contact an author ized Aud i dea ler or othe r qualified
wor ksh o p.
& WARNING
• Alway s observe the warn ing in :::} page 267, "Engine compart·
ment ", before opening the hood and checking the engine coolant
level.
• Never open the engine hood if you see or hear steam, or if you
s ee engin e 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
• Mounting add ition al lights o r accesso ries in fron t of the a ir inlets
reduces the cooling effect of the radiator . At high outside tempera ­
tur es o r high engine load, the eng ine could ove rhe at.
• The front spo iler has been designed to properly d istribute the
c oo lin g air when the vehicle is moving. If the sp oi ler is d amaged, this
co uld reduce the cooling eff ect and the eng ine could then overheat .
Ask your au thor ized A udi dealer for assis tance .•
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
Instruments and warning /indicator lights
Tachometer (engine rev counter)
The tachomete r in dic ates t he engine RPM (revoluti ons
pe r mi nutes) .
If engine RPM drops below 1,500, you shou ld downsh ift to the next
lower ge ar. T he red area at the end of the s cale i ndi cates max imum
permissible engine RPM after the brea k-in per iod. Before reaching
t his area, move the sele ctor l eve r to pos ition
D (Dr ive) or ease your
foot off t he accelerator pedal.
0 Note
T he tac hometer needle@~ page 10, fig. 2 s hou ld only briefly be in
t he red zone: yo u co uld damage your eng ine! T he beg inning of the red
zone varies depe nd ing o n the eng ine.
~ For the sake of the environment
Upshifting early saves fuel and redu ces engine noise .•
[S ET] button
You c an per form d iffere nt fu nctions with t his but ton.
Fig . 3 SET butto n in
the instrume nt clu ste r
Th e !SE TI bu tto n performs the fo llow ing f unct io ns:
Vehicle care Do-it-yourselt service iTechnical data

0 Alternator failure => page 33
BRAKE
USA models: =:>page 33
Brake system malfunction

Canada models: =:>page 33
Brake system malfunction
- -
4-
Engine coolant level too =:>page 34
low/engine coolant temperature
too high
~ Engine oil pressure too low =:>page 35
~ II Refill engine oil now =:>page 35
@-e Steering malfunction =:> page 36
©-1 Ignition lock malfunction ::::>poge36
-
Alternator malfunction 0
If the O symbol in the instrument panel display flashes, then there
is a malfunction in the alternator or the vehicle electron ics . A warning
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
!SETI
button again.
Usua lly, you can sti ll drive to the next dea lership. Turn off all but the
most necessary e lectr ica l consumers, s ince these dra in the vehicle's
battery.
0 Note
If the the _ f_ warning symbol (coolant system malfunction) a lso
lights up on the instr ument panel during the trip =>
page 34, then
Controls and equip ­
ment Safety first
•
Driver information display
you
have to stop immediately and turn off the engine . The coolant
pump is not work ing 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/indicator light BRAKE (USA models)/((D )
(Canada models) in the instrument cluster flashes, there is a
brake system malfunction . 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.
Stop the Vehicle and Check the Brake Fluid
-Stop the vehicle .
- Check the brake fluid level=>
page 284.
-Seek professional assistance if necessary .
Warning ! Fault in brake system. Contact
workshop
- Drive carefully to the nearest authorized Audi dealer or
other qualified workshop and have the malfunction
corrected =>
&.
Vehicle care Technical data

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 267, "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 (Q)} 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 _L
A malfunction in the engine cooling system must be
repaired as soon as possible.
If the _ r_ 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 282.
-Add coolant if necessary==> page 283.
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 leve l is correct, then the radiator fan may be the
cause of the malfunction. ...

& WARNING
• If your vehicle should break down for mechan ical or oth er
rea sons , park at a safe di stan ce fr om moving traffi c, turn off the
e ngine and turn on the hazard warning lights=>
page 62, "Emer­
gency flashers A".
• Never open the hood if you s ee or hear steam or coolant
esc aping from the engine compartment -you ri sk being scalded.
Wa it until you can no longer see or hear steam or coolant
escaping.
• The engine compartment of any vehicle is a dangerou s area .
Before you perform any work in the engine compartment, turn of
the engine and allow it to cool. Follow the warning sti ckers
=> page 267 , "Engine compartment ".
0 Note
Do not cont in ue dr iving if the J_ symbol ill uminates. There is a
ma lfunct io n in the engine coo ling system -yo u could damage your
engine .•
Engine oil pressure malfunction ~
The red e ngi ne oil pressure warni ng symbol requires
immediate servic e or repair. Driving with a low oil pres ­
sur e indication is likely to caus e severe engine damage.
If the ~ symbol on t he disp lay flashes , the engi ne oil pres­
s u re is too low . A dr iver message appears as we ll to explain
t h e ma lfun ction in mo re detail. The driver wa rning goes out
a fte r about 5 seco nds, but it can be brought up at any tim e by
press ing t he
[SET] but ton aga in .
Switch off engine ! Oil pressure too low
- Sto p the veh icle .
Controls and equip ­
ment Safety first
Driver information display
- Tu rn the engine off .
- Check t he eng ine oi l level=>
page 279 .
-Contact your authorized Aud i dea ler if necessa ry.
Engine oil level too low
If the eng ine oil leve l is too low, add e ngine oil=> page 2 79.
Engine oil level correct
If the symbo l~ flashes even though the engi ne oil level is cor rect,
please seek professional assistance. Do not continue driv ing. Do not
leave t he eng ine runn ing
idle, either .
[I) Tips
• The engine oil pres sure symbol ~ is not an indi cator 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
s ure warning ~ starts to flash before you re spond to the low oil
level warning . By then, your engine may already have suffered
serious damage. •
Fill engine oil now~
~-Plea se replenish oil now
If the ~ .. symbo l lights up, then t he oil has to be replen is hed right
now =>
page 279. •
Vehicle care Technical data

Warm and cold
Deluxe automatic climate control
Applies to vehicles : wit h deluxe automat ic climat e 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 ventila­
tion system as well a cooling system responsible for dehumidifying
and cooling the air inside the vehicle.
Th e automatic climate control system 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 a lso auto­
matically adjusted. The system also takes into account strong
sunlight so that manual adjustment is not necessary . So in almost all
cases,
automatic mode offers the best conditions for the comfort of
the occupants at all times of the year=>
page 97.
Please note the following :
The cooling mode lowers the humid ity level inside the vehicle. This
prevents fogging up of the windows.
In the case of high outside humidity and temperatures,
condensation
can drip from the air conditioning system evaporator and form a pool
under the vehicle . This is normal and not an indication of leaks!
At low outside temperatures, the fan automatically switches to a
higher speed when the coo lant reaches a sufficient temperature
except in the defroster position .
When starting with fu ll thrott le, the compressor of the automatic
climate control system is temporarily switched off to achieve full
eng ine power .
T o ensure engine cooling when the engine is under an extreme load,
the compressor is switched off at high coolant temperatures.
Controls and equip ­
ment Safety first
Warm and cold
Pollutant filter
The pollutant fi
lter (particle filter) ensures that impurities in the
outs ide air (e.g. dust, pollen) and odors are significantly reduced or
stopped . The air is also filtered in recirculation mode.
T he pollutant filter e lement must be changed at the intervals speci­
fied in the service plan so that the performance of the automatic
climate contro l system is not impaired.
If the effectiveness of the filter dec reases prematurely due to opera­
tion of the vehicle in areas with significant pollution, the filter
element must be changed between the specified service dates.
Key recognition
Th e cur rent automatic clima te control settings are automatically
stored and assigned to the master key.
Energy management
To prevent the battery from being discharged and to restore the
balance of energy, components which require large amounts of
energy are temporarily cut back or switched off=>
page 243. Heating
systems in particular require a great deal of energy. If you notice , for
example, that the rear window heater is not heating, then it has been
temporarily reduced or switched off by
energy management . These
systems are available again as soon as the energy balance has been
restored.
& WARNING
Traffic safety requires all window s to be clear of ic e, snow, and
condensation. Only then can good visibility be ensured . Famil­
iarize yourself with the correct operation of the automatic climate
control system as well as the proper procedure for defog-
ging/defrosting the windows. _,.
Vehicle care Technical data

___ C_h_ e_c _k _i_n -=g :a,__ a_n_ d_ f_ i_ l _li _n _,g;._ __________________________________________ _
0 Note
• Before w inter sets in, have the coolant checked to see if the
coolant additive in your vehicle is sufficient to meet the climate
conditions. This is especially important if yo u live in a region where
the winter is extremely cold.
If necessary, increase the proportion of
coolant additive to 60% .
• When adding coolant additive to your cooling system, remember :
- We recommend using only coolant additive G12++ (check the
label) for your vehicle. This coolant additive is available at autho­
r iz ed Audi dealers. Other types of antifreeze can s ignificantly
reduce corrosion protection. The resulting corrosion can cause a
loss of coolant and serious engine damage.
• Do not add any type of radiator leak sealant to your vehicle 's
engine coolant. Adding radiator repair flu id may adversely affect the
function and performance of your cooling system and cou ld result in
damage not covered by your New Vehicle Limited Warranty .•
Checking the engine coolant Level
The engine coolant level can be checked with a quick
glance.
Fig. 208 Engine
co mpartment : Coolant
expansion tank
Before you check anything in the engine compartment,
always read and heed all WARNINGS~ & in "Working in
the engine compartment" on
page 275.
-Turn off the ignition.
- Read the engine coolant level from the coolant expansion
tank~ fig. 208 . With a cold engine, the coolant level
should be between the "MIN" and "MAX" markings. When
the engine is warm, the level may be slightly above the
"MAX" marking.
The locat io n of the coolant expansion tank can be seen in the engine
compartment illustration~
page 276.
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 34 will blink until you add coolant and the level has
been resto red to normal. Even though there is an electric coolant
level sensor, we still recommend you check the coolant level from
time to time.
Coolant loss
Coolant loss may indicate a leak in the coo ling system. In the event of
coolant loss, the cooling 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
coo lant is exceeded as a result of overheating .
& WARNING
The cooling system is under pressure and can get very hot. Reduce
the risk of scalding from hot coolant by following these steps.
• Turn off the engine and allow it to cool down.

•--=C:.:.h.:.. e=. c=.:..:: k .:.:in ..:. g ~ a::..:..: n~d .:...:.. f:....:il ..:.li :.:.n.;.: g~ ------------------------------------------
0 Note
• Coolant pollutes the environment and could cause an engine fire.
Excess coolant will be forced out through the pressure relief valve in
the cap when the engine becomes hot .
• If, in an emergency, only water can be added, the correct ratio
between water a nd antifreeze ::::>
page 281 must be restored as soon
as possible.
ci> For the sake of the environment
Drained coolant should not be reused. Always dispose of used coolant
wh ile observ ing all environmental regulations.•
Radiator fan
The radiator fan switches on automatically by itself.
The radiator fan is driven by the engine v ia the V-belt. The viscous
clutch regulates the speed of the fan according to the temperature of
t he coo lant.
An auxiliary electr ic radiator fan* sw itches on and off depending on
coolant temperature and other vehicle operating conditions.
After you switch the engine off, the auxiliary fan can cont inue running
for up to 10 minutes- even with the ignition off. It can even switch on
again later by itse lf::::>
/1 , if
• the temperature of the engine coolant rises due to the heat build­
up from the engine in the engine compartment, or
• the engine compartment heats up because the veh icle is parked in
intense sunlight.
& WARNING
• To reduce the risk of personal injury never touch the radiator
fan.
/1 WARNING (continued)
• The auxiliary electric fan is temperature controlled and can
switch on suddenly even when the engine is not running.
• The auxiliary radiator fan switches on automatically when the
engine coolant reaches a certain temperature and will continue to
run until the coolant temperature drops .•
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a quick glance.
Fig . 209 Engine
co mpartm ent : Brake
fluid reservoir
Before you check anything in the engine compartment,
always read and heed all WARNINGS=> & in "Working in
the engine compartment" on
page 275.
-Read the brake fluid level from the brake fluid reservoir
=> fig. 209. The brake fluid level must be between the
"MIN" and "MAX" markings.
The brake fluid reservoir is located at the rear partition of the engine
compartment on the left side=>
page 276. .,

___ A_ l_,, p_ h _ a_b_ e_ t_ic _a_ l_ in_ d_e _ x ____________________________________________ _
Cargo area
See Loading the luggage compartment
177
Cargo net .. .. ... ..... .. .. .. .. .. . .. . 84
Catalytic converter .................. 247
Center a rmrest
Adjusting .. .. .................... 82
Sto rage compartment ... ..... ..... 82
Cert ification .. .. .. .. .. .. ... .... .... 343
Changing a flat ti re .. .. .. .. ......... 316
Cha ng ing a wheel ........... .. .. .. .. 316
Chang ing engine oil .. .. ... .......... 280
Chassis Undercoating ... .. .. ...... .... . .. 262
Checking Engine coo lant level ........ .... .. 282
Checking tire pressure ............ ... 297
Child res tra int system anchors ... .. .. . 229
Child restra ints
Dange r of using chi ld restraints in the front
seat ........ ...... ...... .. .. .. 192
Where can I get add itiona l information
a bou t child rest rain ts and t he ir u se? ...
234
Chi ld safety ....... ... ... .. ... ... ... 215
Convertible locking retractor . ... ... 225
Important sa fety instructions for using
child safety seats .... .... ... .. .. 218
Importa nt th ings to know whe n driving
w ith children ................. .. 215
Insta lling a child restraint using the LATCH
system . ... ..... ....... .. .. . .. 231
Lower anchorages . ............. .. 230 Mounting and releas
ing the anchorage Coat hooks ... ... ... .. .. .... ... . ... . 94
hook ........ .. .... ...... ..... 23 1
Cold t ire inflation p ressure .... ... . ... 295
T ethe r anchors .. ... .. .. .. .. .... . 232
T ethe r straps . ....... .. .. ... .. .. . 232 Compact spare tire
........... ....... 314
See also Spare t ire ............... 314
Chi ld safety seats ............ .. .. .. . 221
Booste r se ats .. .. .... .... .. .... . 223
Convert ible chi ld sea ts ......... .. . 222
Convert ib le lock ing retractor . ... ... 225
Dange r of using child restraints in the front
seat .. .. .. .. .. ... ... ... .. ... .. 192 Compass mirror .
.... .. .............. 71
Com pliance . ................. .... .. 343
Consumer Information ... .... ... 179, 340
Contacting N HTSA ....... .. ... .... .. 179
Conven ience closed .. .. .. .. .......... 54
How do I p roperly install a child safety seat Conven
ience key . .. .. .. ............. . 48
in my vehicle? ...... .. .. ... .. .. . 218 START ENGINE STOP button .
.. 114, 115
In fant seats .............. .. ..... 221 Starting engine ..
... ..... .. .. .. .. 114
Insta lling .. .... .. .. .. .. . ... .. ... 225 Switching eng
ine off ...... .. .. .... 115
LATC H system .. ...... ...... ..... 231 Switching on
ignition ........ ... .. 114
Safety instruct ions .. .. .. .. .. .. ... 218 Unlock
ing and lock ing vehi cle ... .... 48
Cigare tte lig hter . ... .... ... . ... .... .. 92 Conven
ience opening . .. .... .......... 54
Cleaning Convert
ible chi ld safety seats .. ... .. .. 2 22
Al canta ra ® (syn the tic sue de) .. .... . 266
Convert ible lock ing retractor
E ngine comp artment ...... .. .. .. . 267
Activat ing .... ........... ... .... 227
E xhaust t ail pipes .... ... . ... .. .. . 263
Deactivating ... ... .... ..... .... . 228
Fabrics an d fabric cove rings ... .... . 263
Using to secu re a child safety seat . . 225,
Instrument panel ..... .. . ... .... . 264 227
Interior .. .. ... .. .. .. .... .. .. .. . 263
Coolant system .. .... .. ............. 28 1
Leathe r ............. .... .. ..... 265
Cooling System
MMI control console ............. . 263
Expansion tank ........... ... ... . 282
M MI display . .. .. ............... . 263
Cornering light .... .. .. .... .......... 61
Plastic and viny l ............... .. 260
Cruise con trol
Plastic parts ........... .. ... ... . 26 4
Safety belts ......... ... .. .. .. .. . 267
Tr im st rips ..... ...... .... .. .. .. . 259
tr im str ips .. .. ........... .. .. .. . 260 Ch
angin g speed .. .. .... ......... 1 20
Prese lect speed ...... .. .. .. .... .. 12 0
Switching off ... .. .. .. .. ... .. .. .. 120
Switching on ... .. .. .. .. ... .. ... . 119
Cleaning and protection ...... .. .. .. . 256
Warning/indicator lights ... .. .. ... . 17
Clo ck ............ ...... ...... .. .. .. 12
Cruis ing range .. ... . .. .... ... ..... .. 24