service indicator AUDI A5 CABRIOLET 2010 Owners Manual

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 29.
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 ­
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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

0 Note
Never run the tank completely d ry! An irregular supply of f uel can
cause engine misfiring and fuel could enter into the exhaust system .
T he ca talyt ic conver ter could then overhea t and be damaged .•
Odometer
The odometer indicates the distance driven.
Fi g. 5 Ins tru m ent
cl uster : odome ter
Fig . 6 Instrume nt
cl uster : reset button
The d isp lay of distance driven is s hown in kilometers "km" or i n
"miles" .
• USA models - Miles
• Canada models -Kilomete rs
Con tro ls a nd e quip ­
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OP-eration
Instruments and warning /indicator lights
The un its of measure (k ilomete rs/miles) can be changed in the MMI
or us ing the [
CAR] button on the r adio con trol.
Odometer /trip odometer
T he odomete r sh ows the tot al number of kilomete rs or mile s tha t
have been driven on the vehicle.
Th e tr ip odomete r shows the distance dr iven si nce it was last reset.
It
can be used to measure short d istances . T he last d ig it shows
distances of 100 meters or 1/10 of a m ile.
Th e trip odome te r c an be reset to zero by pressi ng the reset bu tton
[O.O )~ fig. 6.
Malfunction message
If there is a ma lf u nction somewhere in the instrument cluster, dEF
will appear in th e trip odomet er and w ill stay on. Conta ct you r au tho­
rized Aud i dea le r to have the p roblem corrected.
Immobilizer
Whe n the ign ition is switched o n, the data on the ignition key are
scanned automati cally.
If an unauthorized key was used,
SAFE is display ed pe rmanently in
t he o dome ter display field . The vehicle ca nnot be o per ated
~ page 37.
[ i ] Tips
• T he date, t ime, and distance continue to show for about 30
seconds after the igni tion is switched off .
• The odometer turns on for about 30 seconds w hen the driver 's
door is opened .
• The odometer can be turned on for approximately 30 seconds
with the igni tion of f by pres sing the [S ET] button ~
page 9, fig. 3 . •
Vehicle care Do-it-yourselt service iTechnical data

ignition. Additionally, a warning tone sounds. After about S seconds
the display switches back to normal.
Calling up the service schedules
If or when an oil change or inspection is due, can be shown in the
radio or MMI* display by selecting the service interval display in the
car menu. Select
I CAR]> Service interval display .
Resetting the service interval display
Your authorized Audi dealer will reset the corresponding service
schedule after performing the appropriate service on your vehicle.
You also have the possibility to reset the oil change schedule after
having performed an oil change according to Audi specifications .
Select
I CAR]> Service interval display > Reset oil change interval.
0 Note
If you disconnect the battery termina ls, no calculat ions can be made
for the serv ice interval display dur ing this time and no service
reminder will appear. Remember that observing the proper service
intervals is vitally important to extending the life of your veh icle,
particularly the engine, and maintaining its value . Even if the mileage
dr iven is low, the maximum period of one year from one service to the
next must not be exceeded.
[ i J Tips
• Do not reset the display between oil changes, otherwise the
display will be incorrect.
• The information in the Service Reminder remains stored even
when the vehicle battery is disconnected .•
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
Driver information display
On-Board Diagnostic system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunct ion Indicator Lamp (MIL) in the instrument cluster
=>
page 12, fig. 7 is part of the On-Board Diagnostic (OBD II) system.
Th e warning/indicator light illuminates when the ignition is switched
on and goes out after the engine starts and the idle has stabilized.
This indicates that the MIL is working properly.
If the light does not go out after the engine is started, or illuminates
whi le you are driving, a malfunction may exist in the engine system.
If the light illuminates, the catalytic converter could be damaged.
Continue driving
with reduced power (avoiding sustained high
speeds and/or rapid accelerat ions) and have the condition corrected.
Contact your authorized Aud i dealer .
If the light illuminates, the electronic speed limiter may also be
malfunction ing. For more information=>
page 22, "Electronic speed
limiter".
An improperly closed fuel filler cap may also cause the MIL light to
illuminate
=> page 2 76. •
On-Board Diagnostics
Fig. 14 Location of
Data Link Connector
(DLC)
tJ,,,
Vehicle care Do-it-yourselt service iTechnical data

Convenience opening feature
-Use the emergency key or pull the mechanical key out of
the master key~
page 39.
- Insert the key into the lock of the driver's door.
- Turn the key to position~
page 48, fig. 41 @until all the
windows have reached the desired position.
Convenience closing feature
- Use the emergency key or pull the mechanical key out of
the master key~
page 39.
- Turn the key in the lock of the driver's door to the lock
position @ until the windows are closed~&.
& WARNING
• Never close the windows inattentively and without checking -
there is risk of injury.
• You must always watch when the windows are being raised so
that no one can be trapped. If you release the key, the closing
action is immediately canceled.
• Always read and heed WARNING~
& in "General description"
on
page 41. •
Correcting window regulator malfunction
After disconnecting the vehicle battery, the one-touch up
and down feature must be activated again.
- Pull and hold the power window switch until the window is
completely closed.
- Release the switch.
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
Opening and closing
-Pull the switch again for one second. The automatic
closing/opening is now reactivated. •
Valet parking
Through the "valet parking" feature the luggage
compartment of your vehicle is secured from unautho­
rized access during the valet parking service .
Fig. 42 Valet parking
button
- Take the mechanical key out of the master key~ page 39.
- Open the glove box~
page 87 and activate~ fig. 42 the
"valet parking" feature by pressing the
[V ALET ) button.
The indicator light in the switch illuminates.
- Close the glove box and lock it with the mechanical key.
- Leave the master key with the service personnel for
parking and keep the mechanical key with you.
When the "valet parking" feature is activated:
• the button
~ on the master key is inactive
• the opening handle in the rear lid is inactive.
The vehicle can be driven and locked and unlocked with the master
key. Access to the luggage compartment is blocked .•
Vehicle care Do-it-yourselt service iTechnical data

HomeLink® -_______________ __.
Applies to veh icles : w ith Home link® un iversa l remote cont rol
Programming the Homelink ® transmitter
The transmitter is programmed in two phases . For rolling
code transmitters, a third phase is also necessary .
Fig. 175 Overhead
console: Homelink ®
k eypa d
Fig. 176 Radiator
grille
Phase 1: programming the overhead keypad
1. Make sure your vehicle is within operating range of the
remote controlled garage door opener .
2. Set the parking brake=>
& in "General information" on
page 172 .
3. Turn the ignition on . Do not start the engine!
Con tro ls a nd e quip ­
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OP-eration
4. Press and hold the two outside Homelink ® buttons G)and
@ for approximately 20 seconds until indicator light@
=> fig. 175 begins to flash . Then release both buttons. Do
not hold the buttons for longer than
30 seconds .
- This procedure only needs to be performed
once. It erases
the factory-set default codes and does not have to be
repeated to program additional remote controls.
5. Press and hold the Homelink ® button G), @ or@ until
the indicator light @starts flashing
slowly . Release the
button.
- The system will remain in programming mode for 5
minutes. Co to the front of the vehicle and proceed with
phase
2.
Phase 2: at the radiator grille
6. Point the original remote control to the m iddle of the
radiator grille of your vehicle=> fig.
176.
7. Hold the original remote control at a distance between O­
S in. (0-13 cm) (use the shortest distance possible) .
8 . Press and hold the activation button on the remote
control.
- May be different in Canada . If so, press and re-press
(cycle) the activation button on your remote control every
two seconds.
9. The emergency flashers will flash
three times (after about
15-60 seconds) when the programming is successful.
Release the button on the remote control.
- To program more devices , repeat steps 4 to 9.
Vehicle care Do-it-yourselt service iTechnical data

_______________________________________________ A_ ir_ b_ a_,,,g '--- s.:.y _s _t_ e _ m ___ lJ'II
& WARNING (co ntinued )
• The inflating airbag will hit the child safety seat or infant
carrier with great force and will smash the child safety seat and
c hild against the backrest, center arm rest , door, or roof .
• Always install rearwa rd-facing child restraints in the back seat.
• If you must install a rearward facing child safety seat on the
front passenger seat because of except ional circumstances and
the PASSENGER AIR BAG OFF light does not come on and stay on ,
immediately install the rear-facing child safety seat in a rear
seating position and have the airbag system inspected by your
authorized Audi dealer.
& WARNING
If, in except ional circumstances, you must install a forward-facing
child re straint on the front pa ssenger's seat:
• Always make sure the forward-facing seat has been designed
and certified by its manufacturer for us e on a front seat with a
passenger front and s ide airbag.
• Never put the forward-facing child restraint up again st or very
near the instrument panel.
• Always move the passenger seat into its rearmost position
in
the seat's fore and aft adjustment range, as far away from the
airbag a s po ssible, before installing the forward-facing child
restraint. The backrest must be adjusted to an upr ight position.
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the time whenever the ignition is switched on .•
Advanced Airbag System components
Th e front passenger seat i n your ve hicle has a lot of very im portant
parts o f th e Ad van ced A irbag System in it. These parts include t he
we ight-sens ing mat, sensors, wir ing, brackets, and mo re . The func-
Controls and equip­
ment Safety first Vehicle operation
tion of the system
in the front passenger seat is checked by the elec­
t ronic contro l unit whe n t he ignit io n is on. The con tro l u nit mon itors
t he Advanced A irbag System and tu rns th e airbag indicator light on
when a malfunction in the system components is detected. The func­
tion of the a irbag indicator light is descr ibed in greater deta il below.
Beca use the front passen ger seat contains importa nt parts of the
Advance d Ai rbag System, you mus t take care to p revent i t fro m be ing
dama ged. Damage to the seat may prevent t he Advance d Airbag for
t he front p assenge r seat fro m d oin g its job in a cra sh.
The front Advanced Airbag System consists of the
following:
• Cras h sensors in the front of the vehicle t hat measure vehicle
acc ele ra tio n/d ecele ration to prov ide info rmat io n t o the Adva nced
Airbag System about t he severity of the crash.
• An elec tron ic con tro l unit, w it h i nteg rated crash senso rs fo r front
and side impacts . The contro l unit " dec ides" w het her to fire the front
a irbag s base d on th e informa tion re ceived from t he cr ash sensors.
The control unit also "decides" whether the safety be lt pretens ioners
s ho uld b e activa ted.
• An Advanced Airbag with gas generator and cont rol va lve for the
dr ive r inside t he st eer ing whee l hub .
• An Advanced Air ba g with gas gene rator and control valve inside
t he inst rume nt pan el for the front pass enger.
• A weig ht-sensing mat unde r the upholste ry paddin g of the front
passenger seat c ushi on that measures the tota l weigh t on the seat .
T he information registe red is se nt co ntin u ously to the electronic
cont rol uni t t o reg ulate deployment of t he front Advanc ed A irbag o n
the passenger side .
• An a irbag mon itoring system and ind icator light in the inst rume nt
cluster =>
page 211.
• A sensor in each fro nt seat reg isters the distance between t he
res pective seat and the s teer ing whee l o r i nst rume nt pane l. The
information reg iste red is sent co ntin uously to the e lectro nic cont rol
uni t to reg ulate dep loyment o f the front Advanced Airbags . .,_
Vehicle care Do-it-yourself service Technical data

Airbag system -----------------=--=---
& WARNING (co ntinued )
airbag during braking or in a sudden maneuver. Objects near the
airbags can b ecome projectiles and cause injury , particularly when
the seat is reclined.
& WARNING
The fine dust created when airbags deploy can c ause breathing
problems
for people with a history of asthma or other breathing
conditions.
• To
reduce the risk of breathing probl ems, those with asthma or
other respiratory conditions should get fresh air right away by
getting out of the vehicle or opening windows or doors.
• If you are in a colli sion in which airbags deploy, wash your
hands and face with
mild soap and water before eating .
• Be careful
not to get the dust into your eyes, or into any cuts or
scratches.
• If the residue should get into your eyes, flush them with
water. •
Monitoring the Advanced Airbag
System
Airbag monitoring indicator Light~~
Two sep ara te i ndic a to rs mo nit o r the func tio n of the
A dvan ced Ai rb ag Sy stem: th e airbag mo nito ring i ndic ator
lig ht and th e
PASSENGER AIR BAG OFF light.
The A dvanced A irbag System ( includ ing the elect ronic contro l unit,
senso r circu it s and system wir ing) is mon it or ed co ntinuous ly to make
sure that it is function ing p roperly whenever the ignition is on. Eac h
tim e you turn on the igni tion, the airba g mo nitoring indicat or ligh t
t:.
will come o n for a few seconds (se lf diagnostics) .
Controls and equip­
ment Safety first Vehicle operation
The system must be inspected when the indicator
light ~:
• does not come o n when the ignit io n i s switched on,
• does not go o ut a few se conds a fter you h ave switche d on t he ig ni­
tion, or
• co mes on whil e dr iving.
If a n airbag system malfunction is detected, the ind icator light will
fi rst start flashing to catc h the dr iver 's attention and t hen stay on
cont inuo usly to s erve as a constan t rem inder to have the system
inspected immediately .
If a ma lf u ncti on oc curs that tur ns th e fron t air bag on the passe nger
side off, the
PASSENGER AIR BAG OFF light will come on and stay on
w henever the ignition is on.
& WARNING
An airbag system that is not functioning properly cannot provide
supplemental p rotect ion in a frontal crash .
• If the airbag indicator light comes on, it means that there may
be something wrong with the Advanced Airbag System. It is
possible that the airbag will inflate when it is not supposed to, or
will not inflate when it should .
• Have the airbag system inspected immediately by your autho­
rized Audi dealer. •
Vehicle care Do-it-yourself service Technical data

Airbag system Ill
----------------=--=---
the weight-sensing mat to measure more weight t han is act ua lly on
t he sea t.
If the PASSENGER AIR BAG OFF light still does not come on and
does not stay on cont in uou sly (when the ignition is sw itched on),
• t ake the child re st raint o ff the fr ont pa ssenge r seat and in stall it
prope rly at one of t he rear seat pos itions. Have t he a irbag system
i n sp ec ted by y ou r au thorized A udi dea ler im medi ately.
• move the child to a rear seat posit io n and make sure that the child
i s prop erly re stra ined in a chi ld restr aint t hat is a ppr opr iate for i ts
size and age.
Th e
PASSENGER AIR BAG OFF light sho uld NOT come on when t he
ign ition is on and an adult is si tting in a proper seating pos it io n on the
front passenge r seat. If the
PASSENGER AIR BAG OFF light comes on
and st ays o n or flashes for abou t 5 seco nds w hile drivi ng, under these
circumstances, make sure that:
• t he adult on t he fr on t p asse nger sea t is pro pe rly se ate d on the
center of the seat cushion with his or her back up against the backrest
and the bac kres t is not recli ned => page 178, "Proper occ upant
seating posit ions",
• t he adult is n ot tak ing weig ht off t he se at by h olding on to t he
passenger assist handle above the fro nt passenger doo r or
s up po rting their weight on the armrest,
• the safety belt is be ing properly worn and th at there is not a lot of
s la ck in t he safe ty be lt webb in g,
• accessory seat cove rs or cushions o r othe r th ings that may cause
an in cor rect readin g or i mpress io n o n the weight -sen sing m at under
the upholstery of the seat have been removed from the front
pas senge r sea t,
• a safety be lt extender has not been left in the safety belt latch fo r
t he fr ont p asse n ge r se at.
In addition to the
PASSENGER AIR BAG OFF light in t he center of the
instrument pa nel, the message
PASSENGER AIR BAG OFF or
PASSENGER AIR BAG ON w ill b riefly appear in th e inst rume nt clus ter
Controls and equip­
ment Safety first Vehicle operation
display.
This is to inform the dr iver of the current front passenger
a ir bag s tatus. •
Important safety instructions on
monitoring the Advanced Airbag System
& WARNING
An airbag system that is not functioning properly cannot provide
supplemental protection in a frontal crash.
• If the airbag indicator light comes on, it means that there may
be something wrong with the Advanced Airbag System. It is possible that the airbag will inflate when it is not supposed to, or
will not inflate when it should .
• Have the airbag system inspected immediately by your autho­
rized Audi dealer.
& WARNING
If the front airbag inflates, a child without a child restraint, in a
rearward-facing child safety seat or in a forward-facing child
restraint that has not been properly installed will be seriously
injured and can be killed .
• Even though your vehicle is equipped with an Advanced Airbag
System, make certain that all children, especially 12 years and
younger , always ride on the back seat properly restrained for their
age and size .
• Always install forward or rear-facing child safety seats on the
rear seat -even with an Advanced Airbag System.
• If you must install a rearward-facing child safety seat on the
front passenger seat because of e xceptional circumstances and
the PASSENGER AIR BAG OFF light does not appear and stay on, immediately install the rear-facing child safety seat in a rear ..,
Vehicle care Do-it-yourself service Technical data

are wearing your safety belt and wear ing it properly . This is why you
should always wear your safety belt, not just because the law requires
you to do so::::>
page 190, "General notes".
The safety belt buckle for the driver and front seat passenger have
switches that tell the airbag control module if the safety belt is being
used or not. If the safety belt is being used, the knee airbag will
dep loy at a slightly higher rate of deceleration than if the belt is not
being used. Therefore, in a particular collision, it is poss ible that an
airbag will not deploy at a seating position where the safety belt is
being used but will inflate at the position whe re the safety be lt is not
being used.
Remember too, airbags w ill deploy only once and only in certa in kinds
of accidents -your safety belts are always there to offer protection in
t hose accidents in which airbags are not supposed to deploy or when
they have already deployed, for example when your vehicle strikes or
is struck by another after the first collision.
This is just one of the reasons why an airbag is not a substitute for the
safety belt. The airbag system wo rks most effective ly when used with
the safety belts. Therefore, always wear your safety belts correctly .
It is important to remember that while the supplemental airbag
system is desig ned to reduce the likelihood of serious injuries, other
injuries, for example, swe lling, bruis ing, and minor abrasions can
also be associated with airbags.
The knee airbag system basically consists of:
• Th e electronic control module
• T wo inflatable airbags (airbag and gas generator), one for the
driver and one for the front passenger
• The airbag indicator light in the instrument panel
The knee airbag system will not deploy:
• when the ignition is turned off
• in front-end collis ions when the decelerat ion measured by the
control unit is too low
• in s ide collisions
Safety first Vehicle OP-eration
Airbag system
• in rear-end collisions
• in rollovers
• in the event of a system ma lfunction (warning/indicator light illu­
minated)
=> page 14 .
& WARNING
• Safety belts and the airbag system can only provide protection
when occupants are in the proper seating position =>
page 209.
• If the airbag indicator light comes when the vehicle is being
used, have the system inspected immediately by your authorized
Audi dealer. The airbag may not work properly when the vehicle
acceleration in a side collision is high enough to deploy the airbag.
See also =>
page 14. •
A pp lies to vehi cles: w ith K nee airb ags
How knee airbags work
The risk of injury to the leg area is reduced by fully
deployed knee airbags.
Fig . 202 Inflated
airbags protecting
in a
frontal collision
The knee air bag system has been designed so that the airbags for the
dr iver and front passenger are deployed in certa in but not all frontal
co llisions .
ti-
Vehicle care Do-it-yourselt service iTechnical data

Side airbags
Description of side airbags
The airbag system can provide supplemental protection
to properly restrained occupants.
Fig. 203 Side airbag
location in the driver's
seat
The side airbags are located in the sides of the front seat backrests
=>
page 219, fig. 203. They are identified by the word "AIRBAG" .
The side airbag system basically consists of:
• the electronic control module and external side impact sensors
• the two side airbags located in the sides of the front backrests
• the airbag warning light in the instrument cluster.
The airbag system is monitored electronically to make certain that it
is functioning properly at all times. Each time you turn on the igni­
tion, the airbag system indicator light will come on for a few seconds
(self diagnostics) .
The side airbag system supplements the safety belts and can help to reduce the risk of injury to the driver's and front passenger's upper
torso on the side of the vehicle that is struck in a side collision. The
airbag deploys only in side impacts and only when the vehicle acceler­
ation registered by the control unit is high enough . If this rate is
below the reference value programmed into the control unit, the side
airbags will not be triggered, even though the car may be badly
Safety first Vehicle OP-eration
Airbag system
damaged as a result of the collision. It is not possible to define an
airbag triggering range that will cover every possible angle of impact,
since the circumstances will vary considerably between one collision
and another. Important factors include, for example, the nature
(hard or soft) of the impacting object, the angle of impact, vehicle
speed, etc.
=> page 220, "Important safety instructions on the side
airbag system" .
Aside from their normal safety function, safety belts work to help keep the driver or front passenger in position in the event of a side
collision so that the side airbags can provide protection.
The airbag system is
not a substitute for your safety belt. Rather, it is
part of the overall occupant restraint system in your vehicle. Always
remember that the side airbag system can only help to protect you if
you are wearing your safety belt and wearing it properly. This is
another reason why you should always wear your safety belts, not just
because the law requires you to do so=>
page 190, "General notes".
It is important to remember that while the supplemental side airbag
system is designed to reduce the likelihood of serious injuries, other
injuries, for example, swelling, bruising, and minor abrasions can
also be associated with deployed side airbags. Remember too, side
airbags will deploy only once and only in certain kinds of accidents -
your safety belts are always there to offer protection .
Vehicle damage, repair costs or even the lack of vehicle damage are
not necessarily an indication of over-sensitive or failed airbag activa­
tion. In some collisions, both front and side airbags may inflate.
Remember too, that airbags will deploy only once and only in certain
kinds of collisions -your safety belts are always there to offer protec­
tion in those accidents in which airbags are not supposed to deploy or
when they have already deployed.
The side airbag system will not deploy:
• when the ignition is turned off
• in side collisions when the acceleration measured by the sensor is
too low
• in front-end collisions
~
Vehicle care Do-it-yourselt service iTechnical data