2011 AUDI A5 CABRIOLET heating

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- Press the [@I button again, or press th e [AUT O I button to
tur n it off .
Temperatu re is cont rolled a utomat ic a lly. The max imum amount of
air f lows ma inly from the vents below the windsh ie ld.
Pressing the
I@ ] button switches off reci rculation mode. •
Applies to vehicles: w ith deluxe automatic climate control plus
Rear window defogger [GiP ]
The rear win dow defogger clears the rear window of
condensation.
- Press th e [llW] button to turn t he rea r window defogger on
and off.
Th e re ar window defogge r wo rks only w hen the engine is running. The
indicator light in the button i llum inates when the rear window
defogger is on.
T he rear w indow defogger is sw itched off automatically after 10 to
20 min utes, depending o n the outsi de temperature .
T he rear win dow defogger can be tu rned on permanen tly by pressing
the
ICiW] button for more than two seconds. This rema ins stored until
t he igni tion is sw itched off. A re ar window defogger that was
switched on also remains stored for 15 minutes after the ignition is
switched off.
If the e ng ine is restarted within these 15 minutes, the rear window
defogger is activated for 10 to 20 minutes, depending on outside
t emperature. When a vehicle is par ked fo r a short time, the rear
window defogger does not need to be man ua lly activated again.
W For the sake of the environment
As soon as t he rear w indow is clear, yo u should switch the rear
window defogger off. The reduced power cons umption has a benefi­
c ial effect on fue l co nsu mption. •
Applies to veh icles: with deluxe automatic cl ima te cont rol plus
AC mode [AC]
Turning AC off
- Press t he !AC ] button.
Turning AC on
-Press th e !AC] butto n aga in .
T he coo ling system is tu rned on in AC mode. The heating and ve ntil a ­
tion system is contro lled automatically.
[ i ] Tips
If the LED in the switch does not illum inate after AC mode has been
t urne d on (= tu rning the AC o ff), there is a fau lt in an a ir -condit ioning
component. Please consult a authorized dealership if there is an
operat ing p roblem. •

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Applies to veh icles : wi th d eluxe automat ic clim ate cont rol pl us
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. •
Applies to vehicles: with deluxe automatic climate cont rol plus
Deluxe automatic climate control plus -
basic settings
The basic climate control settings can be adjusted in the
radio or MM!*.
-Select: Function button (CAR]> Climate control switch.
Automatic recirculation
An air quality sensor detects increased concentrations of pollutants
in the outside air and automatically switches to recirculation mode. We recommend that you always keep automatic
recirculation ON to
prevent polluted outside air 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 that the windows fog up during automatic recirculation,
press the
l@I button immediately.
Under certain operating conditions, automatic recirculation is
switched off automatically. When outside temperatures are below
about 50
°F ( + 10 °(), automatic recirculation is limited to
30 seconds. When outside temperatures are below about 30
°F (-
1 °C), automatic recirculation is limited to 15 seconds .
Synchronization
After Synchronization is set to on, all of the subsequent climate
control settings (except for seat heating*) for the driver are trans­
ferred to the front passenger .
Synchronization is canceled when settings are adjusted on the front
passenger's side .•

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Seat heating
Ap plies to vehicles: w it h fr ont se at heat in g
Front seat heating ~
The seat cushion and the seatback of the front seats can
be heated electrically.
- Press the (g button.
s ci: ., m
Fig. 105 Seat heati ng
button and r egul ator
- Rotate the regulator to the des ired setting .
In position 0, seat heating is turned off . The contro l range is from 1
t o 6.
The seat heating only works when the seat detects body weight on it .
Do no t swi tc h s eat he ating on when the re is no one in the front se ats.
0 Note
To avoid damage to t he heat ing e lements in the seats, do not kneel
on t he seats o r place heavy loads on a small area of the seat .
[I) Tips
Remember that objects placed on the seats may be detected . The
we ight of the objects may be enough to switch the seat heating on •
Contro ls a nd e quip ­
m en t Vehicle
OP-eration
Applies to ve hicles : w ith rea r sea t heat ing
Seat heating for the rear seats
T he seat cushion and the seatback of the two outer rear
seats c an be heated electrically.
- Turn the left thumbwheel (on t he center conso le) to
switch o n and reg ulate seating heat ing fo r the left rear
seat.
Turn t he right t humbwhee l (on the center co nsole) to
switch on and regulate seat ing heating for the r ight rear
seat.
If the thumbwhee l is i n position 0, seat heating is switched off . The
control range is from 1 to 6.
Rear sea t heating only funct ions when the seats are loaded with body
we igh t. If a pe rson is no t sitting on t he rear sea ts, sea t heat ing
should be sw itched off to preve nt unintentional heating of the seat
surfaces.
0 Note
T o avoid damage to the heatin g elements in the seats, do not kneel
on the sea ts or p lace heavy loads on a small area of the seat .•
Vehicle care Do-it-yourselt service iTechnical data

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Applie s to veh icles : wi th upp er cabi n heat in g
Upper cabin heating
The upper cabin area of the front seats can be heated at
three levels when the engine is running .
Fig. 106 Driver's seat:
vent for upper cabin
heating
Fig . 107 Driver's seat:
upper cabin heating
button
- Press the [~l button to switch the upper cabin heating on.
The LED illuminates.
- Press the
[ switch the upper cabin heating off.
& WARNING
The output from the upper cabin heating system may be very hot
temporarily if the air vents in the seats
~ fig. 106 are covered by
clothing or other objects when the system is switched on. This can
cause burns on unprotected skin exposed directly to the vents.
[ i ] Tips
• Upper cabin heating a lways switches on at the highest level. You
can reduce the heat output with the
[cg;) button and increase it with
the[~] button as needed.
• Energy management ~
page 247 may reduce the heat output if
the battery voltage is too low.•

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& WARNING (continued)
• Please note that unconsciously "resting" your foot on the
accelerator pedal causes cruise control not to brake. This is due to
the control system being overridden by the driver's acceleration.
• If a brake system malfunction such as overheating occurs when
the cruise control system is switched on, the braking function in
the system may be switched off. The other cruise control functions remain active as long as the indicator light
CRUISE (US model) / (;f
(Canadian model) is on.
(I) Tips
The brake lights illuminate as soon as the brakes apply
automatically. •
Applies to vehicles : w ith cr uise contro l
Changing speed
-Press the lever in the direction of the
0 => page 113,
fig . 112 or in the direction of the Oto increase or
decrease your speed.
- Let go of the lever to save that speed.
Change speed in increments of 1 mph (1 km/h) by lightly press ing the
lever . If you keep the lever pressed down, you will alter your speed in
5 mph (10 km/h) incremen ts.
You can also press the accelerator pedal down to increase your speed,
e .g . if you want to pass someone. The speed you saved earlier will
resume as soon as you let off of the accelerator pedal.
If, howeve r, you exceed your saved speed by 5 mph (10 km/h) for
longer than 5 minutes, the cruise control will be turned off tempo­
rarily. The green symbol in the display turns white, the saved speed is
retai ned .•
A pp lies to veh ic les : wi th cru ise contro l
Pre-selecting speed
You can pre-select your desired speed while the vehicle is
not moving.
- Turn on the ignition.
- Pull lever into position 1
=> page 113, fig. 112.
- Press the lever in the
0 or O direction to increase or
decrease your speed.
- Let go of the lever to save that speed.
This function makes it possible, for example, to save the speed you
want before driving on the highway. Once on the highway, activate
the cruise control by pulling the lever toward
(D . •
App lies to veh icles : w ith c ruise contro l
Switching off
Temporary deactivation
-Step on the brake pedal, or
Press the lever into position @ (not clicked into place)
=> page 113, fig. 112, or
- Drive for longer than S minutes at more than S mph
(10 km/h) above the stored speed.
Switching off completely
-Press lever into position @ (clicked into place), or
- Switch the ignition off.

Intelligent t echnology
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Electronic differential lock (EDL)
The elec tronic differen tial lock monitors the rotational
speed of the drive wheels.
G en era l not es
The electronic differentia l lock (EDL) helps the ca r to sta rt moving,
accelerate and climb a gradient on surfaces provid ing poor or almost
no grip . W ithout ED L, this would be d iff icu lt, if not impossible.
How the sy stem works
The EDL operates automatically. It mo nitors the rota tional speed of
wheels with the help of the ABS sensors=>
page 245. If a not iceab le
slip is detected at the wheels (e.g. on slippery g round on one side),
the spinn ing wheels are braked and power is transferred to the other
wheels . This is done up to a speed of about 60 mph (100 km/h).
No ises from the brake system signal that wheel sp in is being
controlled.
Driv ing off
When d riving off, always be s ure to keep road conditions in mind as
you accelerate. If one drive wheel spins because it is on a surface with
less grip, apply
plenty of throttle until the car starts to move.
O verheating of bra kes
To prevent the disc b rake of the bra ked wheel from ove rhea ting if
subjected to excessive loads on this wheel, the EDL cuts out tempo­
ra rily. The vehicle remains operat io nal and be haves in the same way
as a veh icle without EDL.
As soon as the brake has coo led down, EDL switches on again auto ­
matically.
Electronic limited slip differential
In vehicles w ith front wheel drive *, an e lectron ic lim ited slip d ifferen­
tial engages when driving on curves . The brakes are applied spec ifi­
cally to the front wheel that is on the inside of the curve. T his m ini­
m izes sliding on the front wheels and enables precise and neutral dr
iv ing t hrouge curves. The electronic lim ited slip differentia l does
no t engage whe n driving in we t cond it io ns or snow.
& WARNING
• Wh en acc elerating on slipp ery s urface s, such a s on ice or snow,
always be careful when depre ssing the accele rator pedal. Even
with the EDL and the electroni c limited slip differential working,
the dr ive wh eels can spin and reduce you r ability to control your
c ar . -Ri sk of cra sh!
• The increased safet y afforded b y EDL and the electronic l imited
slip differ ential d oes not mean th at you can take safety risks .
Alw ay s adapt your d riving st yle to the road c onditions and traffi c
si tuation.
[ i ] Tips
If a fa ult occurs in the ABS, the EDL is also not funct ioning. This is
ind icated by the ABS warn ing light=>
page 15 . •
Anti-Slip Regulation System (ASR)
The Anti-Slip Regulation System prevents the driven
wheels from spinning when the car is a ccelerating.
General notes
T he Anti-Slip Regu lation System (ASR) is in tegrated in the electronic
stabilization program (ESP) . When the veh icle starts up and acceler­
a tes, the wheels are preven ted from sp inning by adjust ing the engine
power to match the amount of grip ava ilable from the road surface.
How the system works
ASR performs automatica lly, i.e. without the driver's intervent ion.
With the a id o f the ABS sensors=>
page 245, ASR moni tors the speed
of the driven wheels. If the wheels start to spin, engine torque is
reduced automatically unti l the tires find enough grip to lock onto
the road s urface. The system is active across the entire speed range . .,

Intelligent technology
'-------------------------------------------------
vi dual components. It regulates consumption, so that more electrical
energy is not being used than is being generated and ensures an
optimal state of charge for the battery .
[I] Tips
• But even energy management cannot negate the limits of physics.
Consider that the power and life of a battery are limited.
• If starting ability is threatened, you are informed by a warning
~ page 249, "Driver notification in the instrument cluster display" .•
What you should know
The highest priority is given to maintaining starting capa ­
bility.
Th e battery is severe ly taxed in short-distance driving, in city traffic
and during the cold time of year. Abundant electrical energy is
required, but only a little is generated.
It is also critical if the engine
is not running and electrical components are turned on. In this
instance energy is being consumed but none is being generated.
It is in prec ise ly these sit uations that you will notice energy manage­
ment actively regulating the distribution of energy.
Vehicle stands for an extended period
If you do not drive your vehicle over a period of several days or weeks,
electrical components are gradually cut back or sw itched off. This
reduces energy consumption and maintains starting capability over a
longer period.
Take into consideration that when you unlock your vehicle, some
convenience functions, such as the remo te key or power seat adjust­
ment, may not be available. The convenience functions will be avail­
able again when you turn on the ignition and start the engine.
W ith the engine turned off
If you listen to the radio, for example, with the engine turned off or
use other MMI functions, the battery is being discharged .
If starting capability is jeopardized due to energy consumption, the
following warning appears in the MMI display:
Please start engine, otherwise system will switch off in
3 minutes.
Th e warn ing indicates that the system will be turned off automati­
cally after 3 m inutes. If you wish to continue using the functions, you
have to start the engine.
With the engine running
Although electrica l energy is generated when the vehicle is being
driven, the battery can become discharged. This happens most ly
when little energy is being generated and a great deal consumed and
the battery's state of charge is not optimal.
T o br ing the ene rgy balance back into equilibrium, consumers which
require especially large amounts of energy are temporarily cut back
or switched off. Heating systems in particular require a great deal of
energy .
If you notice, for example, that the heated seats* or the
heated rear window are not heating, they have been temporarily cut
back or switched off. These systems will be ava ilable again as soon as
the energy ba lance has been restored.
You will also notice that engine idle speed has been increased
slightly. This is normal and not a cause for concern. By increasing
eng ine id le speed the additional energy required is generated and the
battery is charged. •

___ C_ h_ e_c _k _i _ n _g ~ a_n _d_ f_il _l_in _ g _________________________________________ _
in. WARNING
To reduce the risk of personal injury if you must change the engin e
oil in your vehicle your self:
• Wear eye protection.
• To reduce the ri sk of burns from hot engine oil, let the engine
cool down to the touch.
• When removing the oil drain plug w ith your finger s, stay as far
away as possible. Always keep you r forearm parallel to the ground
to help prevent hot oil from runn ing down your arm .
• Drain the oil into a containe r designed for this purpo se, one
large enough to hold at lea st the total amount of oil in your
engine.
• Engine oil is poisonous . Keep it well out of the reach of chil­
dren.
• Continuous contact w ith used eng ine oil is harmful to your
skin. Always protect your skin by washing oil off thoroughly with
soap and water.
0 Note
N ever m ix o il add itives w it h your eng ine oi l. These additives can
damage your engine and adverse ly affect your Audi Limited New
Vehicle Warranty .
ffi For the sake of the environment
• Before chang ing yo ur o il, firs t ma ke s ure you know w here yo u can
proper ly dispose of the used oi l.
• Always dispose of used eng ine o il properly . D o not dump it on
garden soi l, wooded areas, into open streams or down sewage drains.
• Recycle used engine o il by taking it to a used eng ine oil collection
facility in your area, or contact a serv ice stat io n. •
Engine cooling system
Coolant
The engine coo lant performs two functions: i t keeps the
en gine fro m overhe ating and i t protects the engine fr om
fre ezing in th e winter .
The cooling system is sea led and genera lly requ ires little attention .
Th e cool ing sy stem h as been filled at the f actory wit h a permanent
coo lant which does not need to be changed . T he coolant cons ists of a
mixt ure of water an d the manufacturer's glycol -basedcoolant ad di­
tive Gl2++ antifreeze w ith anticorros ion addit ives (50% for USA
mode ls; 60% for Canadian models). This mixture both ass ures the
necessary frost protect ion and p rotects meta l components in th e
eng ine's cooling system from co rrosion an d scaling. It also raises the
boiling point of the cool ant.
Do not red uce the concentration of the coolant in the summer by
add ing p la in water. The proportion of coolant additive must be at
least 50 % but not more than 60 %
to maintai n antifreeze protection
and coo ling efficiency. If the coolant frost pro tect io n i s too low, t he
coo lant co uld free ze and damage t he veh icle heating an d eng ine
coo ling system.
For yea r- round drivi ng , antifree ze is added at t he factory for tempe r­
atures dow n to:
• - 31°F(- 35°C)USA
• -40°F ( -40°C) Canada .
You can mi x the Gl2+ + coo lant additive wit h other additives (G12 + or
Gl2) . Always check with you r autho rized Aud i dea ler .
in. WARNING
Before you check anything in the engine compartment , always
read and heed all WARNINGS =>
& in "Working in the engine
compartment " on
page 280.