battery AUDI A5 CABRIOLET 2010 User Guide

• A message in the instrument cluster display will alert you if a
protection function was activated or if there is a malfunction
~page 51.
• The power top can also be operated manuall y if there is a malfunc­
tion~
page 56, "Power top emergency operation". Have you autho­
r iz ed A udi dealer correct the cause of the malfunction as soon as
possible.
• If park ing the vehicle with the power top open, remember that the
vehicle interior will not be protected from the weather or from unau­
thorized entry. Closing the power top before leaving the vehicle is
recommended. If you leave items in the vehicle, lock them in the
trunk. •
_ Power top operation
The indicator light monitors the power top.
The 4' indicator light illuminates for approximately 2 seconds when
the ignition switches on to check the function and then goes out
again . The indicator light also:
• illuminates when the powe r top opens or closes.
• blinks if the power top switch is operated but the conditions for
opening or clos ing the powe r top are not met . A wa rning message
also appears in the instrument cluster display~
page 51, "Error
message in the instrument cluster display ".
• if the power top did not open or close completely.
[ i ] Tips
The ind icator light stays on if the power top was opened manually. •
Controls and equip­
ment Safety first
Power top
Error message in the instrument cluster
display
An error message appears if the power top cannot open
or close.
Several conditions must be met for the power top to open or close
automatically.
An error message in the instrument cluster display indicates if one of the conditions is not met or there is a malfunction.
Power top: please close rear lid
The luggage compartment l id must be closed when the power top is
opening or clos ing. This error message appears in the instrument
cluster display if the luggage compartment lid is not closed.
Storage bay not lowered. Please remove
obstruction
The power top storage bay must lower when the power top is
opening. Th is error message appears in the instrument cluster
display if the storage bay is not lowered.
If the storage bay does not
lower automatically because of objects in the lug gage compartment,
remove the objects that are in the way from the storage bay area.
Otherwise, you can operate the power top storage bay manually
~page 54.
Power top: cannot be used
This error message appears if the convertib le cannot open or close
automatically because of safety reasons or if there is a malfunction.
The follow ing causes are poss ible:
• Vehicle speed too high: Power top operat ion is deactivated and an
error message appears if the vehicle speed is too high . Reduce the
vehicle speed and operate the switch again to open or close the power
top.
• Battery voltage too low: The power top cannot be operated if the
battery voltage is too low . This ensures there w ill be enough battery .,,
Vehicle care Technical data

Clear vision
0 Note
Do not use the high beam or headlight flasher in if you know that
these could be blinding oncoming traffic. •
Interior lights
Interior lights
The interior lights include the reading lights for the driver
and the front passenger.
Activat ing door contact circuit
F ig . 71 Sect ion from
head liner: Interio r
lights
- Press the button @. The LED in the button illuminates.
Dea ctiv ating door contact circuit
- Press the button @. The LED in the button goes out.
Front r eading lights ~
- Press one of the switches @ to turn the right or left
reading light on or off.
With the door contact circuit, the interior lights turn on as soon as
you unlock the vehicle or open the doors. The interior lights are also turned on when the
ignition key is removed. The lights turn off about
30 seconds after the doors are closed . When the vehicle is locked or
when the ign ition is turned on, the inter ior lights are turned off.
When a door is open, the interior lights are turned off after about 10
m inutes to prevent battery dra ining.
The brightness of the lights is controlled automatically by a dimmer
when they are sw itched on and off. •
Rear interior lights
There are reading lights in the rear for the passengers.
,...
-0 0
"' 0, a,
Fig. 72 Headliner:
Rea r read ing lights
The reading lights are switched on and off using the buttons ~~-•

Seats and storage
- Light your cigarette from the red-hot heating co il of the
cigare tte ligh ter .
- Return the cigarette lighter to its socket .
Using the socket
- Remove the cigarette lighter.
- Insert the plug of the electrical device into the cigarette
ligh ter socke t.
The socket o f the ciga re tte lighter may be used for 12-volt appliances
w ith maximum consumption of up to 100 watts, such as a flash light,
small vacuum cleane r, etc.
Before you purchase any accessor ies, always read and follow the
information in =>
page 345, "Additional accessor ies and parts
replacement" .
& WARNING
• Use care wh en u sing the cigar ette lighter . Inattentive or unsu ­
pervised u se of the cigarette lighter can cause burns -risk of
injury!
• The cigarette lighter work s when the ignition is swit ched off or
w ith the ignition key removed . Children should nev er be left unsu ­
pervised in the vehicle, or there could be risk of fire!
• The po wer outlets and therefore the electrical accesso ries
c onnected to them ope rate only with the ignition on . Improper
use of the outlet s or of electrical acce ssor ies can lead to serious
injurie s or cau se a fire. For this rea son , children should ne ver be
left unatt ended in the veh icle -they could be injured!
0 Note
• To avoid damag ing the socket, only use plugs that fit p roperly . •
Only use the cigarette lighter socket as a power source for elec­
t rical accessories for short du rat ions. Use the socke ts * in the vehi cle
w hen a power sou rce is needed for longer durations .
(I] Tips
When the engine is off and accessories a re st ill p lugged in and are o n,
the vehicle battery can sti ll be drained .•
Storage
General overview
There are numerous places to store i tems in your vehicle.
Glove compartment => page 87
Storage compartments in the front seats
& WARNING
• Alway s re mo ve object s from the instrument panel. Any item s
not put away could slide ar ound in side the vehicle while d riving or
wh en accelerating or when apply ing the brake s or wh en driving
around a co rner .
• When you ar e driving make sure that anything you may have
pla ced in the center console o r othe r st orage lo cation s cannot fall
out into the footwell s. In case of sudden braking you would not be
able to brake, depress the clutch or accelerate. •

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. .,,_

Deluxe automatic climate control
plus
A pplie s to v ehicl es: w ith d elu xe auto matic climate control p lu s
Description
The air conditioner is fully automatic and is designed to
maintain a comfortable and uniform climate inside the
vehicle.
We recommend the following settings:
- Set the temperature to 75
°F (+23 °C).
- Press the [AUTO] button .
With this setting, you attain maximum comfort in the least amount
of time. Change this setting, as desired, to meet your personal needs.
The climate controls are a combination of heating, ventilation and
cooling systems, which automatically reduce humidity and cool the
air inside your vehicle.
The climate control 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 automatically adjusted . The
system also takes into account strong sunshine 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:
Turn on the air conditioner to reduce humidity in the vehicle. This also
prevents the windows from fogging up.
When the outside temperature is high and the air is very humid,
condensation from the evaporator may drip under the vehicle . This is
normal and does not indicate a leak.
Controls and equip ­
ment Safety first
Warm and cold
If the outside temperature is
low, the fan normally only switches to a
higher speed once the engine coolant has warmed up sufficiently .
The air conditioner temporarily switches off when you drive off from
a standstill using full throttle to save engine power.
The compressor also switches off if the coolant temperature is too
high, so that t he engine can be adequately cooled under ex treme
loads.
Pollutant filter
The pollutant filter (particle filter) ensures that impurities in the
outside air (e.g. dust, pollen) and odors are significantly reduced or
stopped . The air is also filtered in recirculation mode.
The pollutant filter element 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 effectiveness of the filter decreases 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
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 without having to manually adjust them
when using their own key.
If another driver changes the settings while using your key, your
preferred settings will be erased.
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 247. 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 cut back or switched off by
energy management. These .,_
Vehicle care Technical data

ffl Warm and cold .._ ____ .....;_____,;,;_ _______________________________ _
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. 105 Driver's seat:
vent for upper cabin
heating
Fig . 106 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. 105 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.•

ffl..__T_ r_a _n_ s_ m_ is_ s_io _ n ___________________________________________________ _
You can continue to drive the vehicle. See an authorized Audi dealer
or other qualified workshop at the next opportunity.
Gearbox malfunction: you can continue driving (limited
functionality)
There is a serious system malfunction:
• The program shifts only into certain gears .
• The engine may stall.
• It is not possible to restart the engine if it has been switched off.
• Continuing to drive could result in subsequent damage .
0 Note
If the transmission switches to fail-safe mode, you should take the
vehicle to an authorized Audi dealership as soon as possible to have
the condition corrected.•
Applies to veh icles: w ith automatic transm ission
Emergency release of the selector lever
If the vehicle's power supply fails, the selector lever can
be released in an emergency.
Fig . 157 Removing
ashtray insert Fig. 158
Emergency
release for selector
lever
The emergency release is located under the insert for the
ashtray.
- Slide open the cover for the ashtray.
- Release the ashtray by pushing the switch©~ fig. 157
to the right.
- Remove the ashtray insert @ .
- Now you can see a small cover in the ashtray holder on the
front of the ashtray recess.
- Release and remove this cover.
- You now have access to a bolt. Using a screwdriver or
similar, press the bolt down and hold it down~ fig. 158.
Now press the interlock and move the selector lever to the
N position.
The selector lever can only be moved from the P position if the igni­
tion key is in the lock and the ignition is turned on. If the vehicle has
to be pushed or towed if the power supply fails (e.g. battery is
discharged), the selector leve r must first be moved to the N position
using the emergency locking device.•

_____________________________________________ A ~i..:_r ,::b :=:a ~g !...:: s'.:!y '..:s~ t~ e ~ m~ --
& WARNING (co ntinued )
• Always make sure that the side airbag can inflate without
interference:
-Never install se at covers or replacement upholstery over the
front seatbacks that have not been specifically approved by
Audi .
- Never use additional seat cushions that cover the areas
where the side airbags inflate .
- Damage to the original seat covers or to the seam in the area
of the side airbag module must always be repaired immedi­
ately by an authorized Audi dealer.
• The airbag sy stem can be activated only once. After an airbag
has inflated, it must be replaced by an authorized Audi dealer or
qualified technician who has the technical information , training
and special equipment necessary.
• The airbag sy st e m can be deployed only onc e. After an airbag
has been deployed, it must be replaced w ith new replacement
parts de signed and approved es pecially for your Audi model
version . Replacement of complete airbag systems or airbag
components must be performed by qualified workshops only.
Make sure that any airbag service action is entered in your Audi
Warranty
& Maintenance booklet under AIRBAG REPLACEMENT
RECORD.
• In accidents when an airbag is deployed, the vehicle battery
separates the alternator and the starter from the vehicle electrical
system for safety reason s with a pyrotechnic circuit interrupter.
- Work on the pyrotechnic circu it interrupter must only be
performed by a qualified dealer -risk of an a ccident!
- If the vehicle or the circu it interrupter is scrapped, all appli­
cable safety precautions must be followed .
Controls and equip­ ment Safety first Vehicle operation
'£' For the sake of the environment
U
ndeployed airbag modules and pretens io ners mig ht be classified as
Perch lorate Material -special handling may app ly, see
www.d ts c. ca.gov/ha za rdouswaste/pe rchlorate . W he n t he vehicle or
parts of the restraint system includi ng a irbag modules safety belts
w ith pretens io ners are s crappe d, all ap plic abl e laws and reg ulat ion s
must be observed. Your author ized Aud i dealer is familiar with these
req uir ements and we recommen d that yo u have yo ur dea le r pe rform
this service for you .•
Other things that can affect Advanced
Airbag performance
Chang ing the ve hicle's suspension system can change the way that
t he Adv anced Airbag System pe rforms in a crash . For example, using
tire-r im combinations not approved by Aud i, lower ing the veh icle,
c hang ing the st iffness o f the suspe nsio n, incl uding the s prings,
s u spension str uts, shoc k absorbe rs etc. can change the forces that
are meas ured by the airb ag sensors and sen t to the ele ctron ic con trol
uni t. Some suspension changes ca n, for examp le, increase the force
levels measu red by t he sensors and ma ke the airbag system dep loy in
crashes in which it wou ld not deploy if the changes had not bee n
made . Other kin ds of changes may re duce the force levels meas ured
by the senso rs and p revent the airbag from dep loyi ng when it should .
The sensors in the safety belt buckle for the d river and front
p assenger se at tell the e le ct ro nic co ntro l mo dule if the sa fe ty belt is
latc hed or not . If the safety be lt is be ing used, the fron t airbag w ill
dep loy at a s ligh tly hig her ra te o f ve hicl e decelerat io n t han if the
safety belt is not be ing used. T he refo re, in a part icular collis io n, it is
poss ible that an a irbag wi ll not deploy at a seating posit ion where the
safety belt is being used but wi ll inflate at the posi tion whe re the
safety belt is not bei ng used. It is important that not hing interfere
w ith the s afe ty be lt bu ckles so t hat th e sensor s can sen d the correct
information about safety belt use to the electronic contro l unit. ..
Vehicle care Do-it-yourself service Technical data

Intelligent technology
--------------------------------------------------' "---.L=.c=--
Repl acing wheel s/tires
Vehicles wi th all wheel drive must a lways have tires of t he same size.
Also avoid tires with different tread depths. For details see page
=> page 307, "New tires and rep lacing tires and wheels".
Off -Road driving?
Your Audi does not have enough ground clearance to be used as an
off-road veh icle . It is therefore best to avo id ro ugh tracks and uneven
terrain as m uch as possible . Also refer to=>
page 251.
& WARNING
Alway s adju st your driving to road and traffi c conditi ons. Do not
let the ex tra safety afforded by all wheel dr ive tempt you into
taking extra risks.
• Although the all wheel dri ve is ve ry effecti ve, always
remember that braking capacity is limited by tire traction. You
should therefore not dri ve at ex cessive speeds on icy or slippery
road surfaces .
• On wet road surfaces , be careful not to drive too fast because
the front wheel s could begin to slide on top of the water (aqua­
planing ). If th is should occur, you will have no warning from a
sudden increase in engine speed as with a front-wheel drive
vehicle. Always drive at speeds which are suited to the road cond i­
tions -ris k of crash.
n
Controls and equip­
ment Safety first Vehicle operation
Energy management
Starting ability is optimized
E
nergy management contr ols th e distributi on of elec­
tri cal energy and thus optimizes the availabili ty of elec­
tri cal energ y for star ting the engin e.
If a vehicle with a conventiona l energy system is not dr iven for a long
per io d of time, t he battery is di sch arged by idling cur rent consume rs
(e .g. immob il izer) . In certain c ircumstances it can result in there
being insuffic ien t energy av a ilab le to start t he eng ine .
Inte lligent energy management in your ve hicle hand les the d istribu ­
tion of e lectrical energy . Starting ability is ma rkedly improved and
the l if e of the battery is extended.
Bas ically, energy management consists of
battery d iagnos is, idling
current management
a nd dynamic energy management .
Battery diagnosis
Battery d iagnosis con tinuously dete rmines the st ate o f the batte ry.
Sensors determ ine battery vo ltage, battery current and battery
t empe ra ture. This de termine s the cur rent sta te of cha rge and the
power of the battery.
Idling current management
I d ling current management reduces energy consumption wh ile the
vehicle is s tanding. W ith t he igni tion swi tched off, it con trols the
energy supply to the var io us electrical components. Data from
b att ery diag nosis is considered .
Depend ing on the battery 's state of charge, individual consumers a re
gradually t urned off to p revent excessive discha rge of the battery and
thus main tain start ing capab ility.
Dynamic energy management
Whi le the vehicle is being dr iven , dynamic energy management
dis tributes the energy generated a cco rding to the needs o f th e in di-
Vehicle care Do-it-yourself service Technical data

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. •