cooling AUDI A5 CABRIOLET 2011 Owners Manual

Reporting Safety Defects . . . . . . . 185
Active rollover protection system 186
Safety belts . . . . . . . . . . . . . . . . . . . 189
General notes ............ ..... 189
Why safety belts? ............. 190
Safety belts ........... ....... 193
Safety be lt pretensioners ....... 197
Airbag system ........ ........ 199
Important things to know ...... 199
F ron t airbags . . . . . . . . . . . . . . . . . 203
Mon itoring the Advanced Airbag
Sys tem .................. ... .
Knee airbags ................. .
S ide airbags . .. .............. .
Child Safety .. .. .......... .... .
Important things to know ..... .
Child safety seats ............ .
Installing a child safety seat ... .
LATCH Lowe r anchorages and
tethers for children ........... .
Additional Information 210
215
218
221
221
227
231
234
238
Vehicle operation
...... 240
Intelligent technology ........ 240
Notice abou t data recorded by
vehicle control modules . . . . . . . . 240
E lectronic Stab ilizat ion Program
(ESP) ................... ..... 240
Braking . . . . . . . . . . . . . . . . . . . . . . 24 3
Servotronic ® -advanced power
steer ing system .......... ..... 24 6
Driving with your quattro ® . . . . . . 246
En ergy management .......... . 24 7
Driving and environment ...... 250
The first 1,000 miles (1,50 0 km)
and afterwards ............... 250
Avoid damaging the vehicle ..... 251
Controls and equip­
ment Safety first
Driving through w.ater
on roads . 251
Catalytic converter . . . . . . . . . . . . 251
Operate your vehicle economica lly
a nd minimize pollut ion . . . . . . . . 252
Trailer tow ing 255
Driving with a trailer . . . . . . . . . . . 255
T railer tow ing t ips ... .......... 257
Vehicle care ...... ........ 260
Cleaning and protect ion ...... 260
General information . . . . . . . . . . . 260
Care of exterior . . . . . . . . . . . . . . . 260
Care of interior . . . . . . . . . . . . . . . 268
Fuel supply and filling your fuel
tank ... ... ................ ....
274
Gasoline . ................ .... 274
Fu el tank .............. ....... 275
Checking and filling . . . . . . . . . . . 279
E ngine hood . . . . . . . . . . . . . . . . . . 279
Engin e oil . . . . . . . . . . . . . . . . . . . . 282
Engine cooling system . . . . . . . . . 286
Brake fl uid . . . . . . . . . . . . . . . . . . . 289
Bat tery . . . . . . . . . . . . . . . . . . . . . . 290
Windshield/headl ight washer
conta iner . . . . . . . . . . . . . . . . . . . . 295
Tire s and wheels ......... ..... 296
Ti res
296
Ti re pressure monitoring system 314
Do-it-yourself service . 318
What do I do now? 318
T runk escape handle ........... 318
Vehicle tool kit ............. ... 318
Space-saving spare tire (compact
spare tire) .................... 319
Changing a wheel . . . . . . . . . . . . . 320
Table of contents
Fuses and bulbs ............ . .
Electrica l fuses .............. .
Bul bs ..................... . .
Emergency situations ....... .
General ............ ......... .
Starting by pushing or towing ..
St arting with jumper cables ... .
Use of jumper cab les ....... .. .
Emergency tow ing w ith
commercial tow truck ........ .
Lift ing vehicle .... ........... .
Technical data
General informat ion
Explanation of technical data .. .
Vehicle identification ......... .
Weights .................... .
Dimensions ................. .
Data .......... ............... .
211 hp, 2.0 lit er 4 -cyl. e ngi ne .. .
Consum er Information ...... .
Warranty coverages .......... .
Operating your vehicle outside the
U.S.A. or Canada .......... ... .
Aud i Service Repair Manua ls and
Literature ......... .......... .
Maintenance ............... . .
Additional accessories ,
modif ications and parts
replacement ............... . .
Declaration of Compliance,
Telecommun ications and
E lectroni c Systems ........... .
Alphabetical index ....
328
328
332
333
333
333
333
334
336
338
340
3 40
3 40
340
341
341
342
342
343
343
343
343
343
345
3 46
3 48
Vehicle operation Vehicle care Do-it-yourself service Technical data

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 31 .
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 272, "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 t he selector lever to po sition "D (Dr ive)" or ease yo ur
foot off t he accelerator pedal.
0 Note
T he tachometer needle @~ page 8, fig. 2 should o nly br iefly 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

& 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 - t-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 287.
- Add coolant if necessary ==> page 288.
- 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.
Controls and equip ­
ment Safety first
Driver information display
& 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 67, "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 2 72, "Engine compartment".
0 Note
Do not continue driving if the-~- symbol illuminates. There is a
malfunction in the engine cooling system -you could damage your
engine. •
Engine oil pressure malfunction 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 'l=:7: 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! Oil pressure too low
-Stop the vehicle.
Vehicle care Technical data

Warm and cold
Warm and cold
Deluxe automatic climate control
Applies 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 ventila­
tion system as well a cooling system respons ible for dehumid ifying
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 90.
Please note 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 humidity and temperatures,
condensation
can drip from the air conditioning system evaporator and form a pool
under the veh icle. This is normal and not an indication of leaks!
At low outs ide temperatures, the fan automatically switches to a
higher speed when the coolant reaches a sufficient temperature
except in the defroster position.
When starting with full throttle, the compressor of the automatic
climate control system is temporarily switched off to achieve full
engine power.
T o ensure engine cooling when the engine is under an extreme load,
the compressor is switched off at h igh coolant temperatures.
Pollutant filter
The pollutant filter (particle filter) ensures that impurities in the
outs ide a ir (e.g. dust, pollen) and odors are significantly reduced or
stopped. The air is also filtered in recirculation mode.
Th e pollutant filter e lement must be changed at the intervals speci­
fied in the service plan so that the performance of the automatic
climate control system is not impaired.
If the effect iveness of the filter decreases premat urely 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
The current climate control settings are automatically stored and
assigned to the key being used. The settings assigned to the key are
restored automatically when the vehicle is started. These settings are
different when the power top is open or closed. Each driver can use
his or her preferred settings witho ut having to man ually adjust them
when using their own key.
If another driver changes the settings while using your key, your
prefer red sett ings will be erased.
Energy management
To prevent the battery from be ing discharged and to restore the
balance of energy, components which require large amounts of
energy are temporarily cut back or switched off=>
page 247. Heating
systems in partic ular require a great dea l of energy. If you notice, for
example, that the rear window heater is not heating , the n 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
Tra ffic safety requires all windows to be clear of ice , snow , and
c ondensation. Only then can good visibilit y be ensured. Famil ­
iarize your self with the correct operation of the automatic climate
c ontrol system as well as the proper p ro cedure for defog­
ging/defro sting the window s.
0 Note
• If you suspect that t he automatic climate cont rol system has bee n
damaged, switch the system off to avoid f urther damage and have it
i n spected by a qualified dealership.
• Repa irs to the Aud i automatic c limate contro l system require
speciali zed knowledg e and spec ial tools. Therefore, contact an autho­
rized dealer in the event of malf unctio ns.
[I) Tips
• To avoid adversely affecting heating and cooling performance and
to preven t condensat ion on the w indows, the air intake in front of the
windshield must be free of ice, snow and leaves.
• Th e air flowing o ut of the ve nts and throug hout the vehicle's
entire interior is discharged at the rear of the vehicle. Make sure that
t he o utlet slo ts a re not covered by clothing, e tc.
• Th e automatic cl imate control system works most effectively if
the w indows are closed . However, if the interior of a pa rked vehicle is
extremely hot from the sun, briefly opening the windows can speed
up t he cooling process. •
Contro ls a nd e quip ­
m en t Vehicle
OP-eration
Warm and cold
App lies to ve hicl es: wit h delux e a utoma tic clim ate cont rol
Controls
This overview is to assist you in familiarizing yourself with
the controls of the automatic climate control system.
Fig . 95 Contro ls of the delu xe au tom atic clim ate c ont rol
Functions are set by ro tating the regu lator or are sw itched on and off
by tapping the buttons . The LE D in the b uttons illuminates when the
fu nction is active .
Button(s) Meaning Page
IOFFJ Switching on and off => page 90
jAUTOJ Automatic operation =>page 90
Regulatora) Tern perature select
ion =>page91
@ Fan => page 91
1~ 1 Re circula tion mod e => page 91
Vehicle care Do-it-yourselt service iTechnical data

Warm and cold
Button(s) Meaning Page
@) Air distribution :>page 92
--
~ Defrost :>page 92
~ Rear window defogger :>page 92
[AC]
Turn cooling system :>page 93 on/off
QJ :>page 103
al The regu lator is a lso used to set the fan speed, a ir dist ribut io n and seat
heating.
rn Tips
The grille on the controls=> page 89, fig. 95 must remain unob­
structed and must not be taped over. Measuring sensors are located
beh ind it .•
A pplies to vehicle s: wit h delu xe auto mati c climate co ntro l
Turning the climate control system on and
off
- Briefly press the [ON] button, or press the [AUTO] button
to turn the climate control system
on .
-Press the [ OFF] button to turn the climate control system
off and to block the air supply from the outside .
The climate control system switches back on when a contro l button is
operated. •
App lies to veh icles: with del uxe auto matic climate contro l
Automatic mode !AUTO j
The standard operating mode for all times of the year.
Turning on automatic mode
-Set the temperature between 60°F (+16°() and 84°F
(+28°().
- Press the (AUTO] button.
Automatic mode ensures constant temperatu res in the interior and
dehumidif ies the air inside the vehicle. Air temperature, volume and
distr ibution are controlled automat ical ly to reach or ma intain the
desired interior temperature as quickly as possible . Fluctuations in
exte rior tempe rature and the effects of temperature from the posi­
tion of the sun are compensated for automatically .
This operating mode works only in an adjustable temperature range
of 60°F ( +l6°C) to 84°F (+ 28°C) . If a temperature below 60°F
(+ 16°() is selected, LO appears in the display. At temperatures above
84°F (+28°() , HI is displayed. At both extreme sett ings, climate
control runs continuously at max imum cooling or heating power.
Th ere is no temperature regulation. •

Warm and cold
(I] Tips
If the climate control is running in cooling mode, air flows mainly
from ve nts @ and @. To achieve adequate cooling, you should never
close these vents completely. •
Applies to vehicles: wit h deluxe auto mati c climate c ontro l
Economical use of the climate control
system
Economical use of the climate control system helps save
fuel.
When the climate control system is working in cooling mode,
engine performance is reduced and fuel consumption is
affected. To keep the time the climate control system is on as
short as possible, you should do the following :
- To save fuel, turn off cooling mode by pressing the [AC]
button (indicator light goes out).
- In addition, if you open the window while driving, turn off cooling mode by pressing the
[AC] button (indicator light
goes out).
- If the vehicle is extremely hot due to the heat of the sun,
briefly open doors and windows.
For the sake of the environment
When you save fuel, you reduce emissions from the vehicle. •
App lies to veh ic les: with del uxe automatic climate control
Automatic recirculation
An air quality sensor detects increased concentrations of
pollutants in the outside air and automatically switches
to recirculation mode.
The basic climate control settings can be adjusted in the
radio or
MMI*.
- Select: Function button [CAR]> Climate control switch.
We recommend that you always keep automatic recirculation ON to
prevent polluted outside ai r from entering the vehicle interior.
If the
air quality sensor located in the climate control system detects
polluted outside air, the sensor decides whether the air pollution can
be reduced by the factory-installed pollutant filter or whether it is
necessary to switch to recirculation . With heavy concentrations of
pollutants, the climate control system is switched automatically to
recirculation mode and the supply of outside air is blocked . As soon
as the concentration of pollutants in the outside air drops, fresh air is
supplied to the vehicle interior again.
In the event tha t the windows fog up during au tomatic recircula tion,
press the[@] button immediately.
Under certain operating conditions, automatic recirculation is
switched off automatically. When outside temperatures are below
about SO
°F ( + 10 °(), automatic recirculation is limited to
30 seconds. When outside temperatures are below about 30
°F (-
1 °(), automatic recirculation is limited to 15 seconds .•