check engine AUDI A5 CABRIOLET 2010 User Guide

Check engine oil 1o
Please top off with ma x. ll of o il. You can keep dri ving.
If the ~ symbo l lights up displaying t his drive r message, t hen ad d a
maximum of
1 liter at your earliest opportunity~ page 285. •
Engine oil level i!:r..,
Please check oil level
When the symbol i lluminates, check the engine oi l level as soo n as
poss ible ~
page 284. Top off the oil at your earliest o pportunity
~ page 285. •
Engine oil sensor defective
" Oil level! Sensor defective
If the symbo l illumina tes, contact your author ized A udi dealer and
have the o il sensor inspected. Until you have this done, check the oil
level each tim e yo u refue l ju st to be on the s afe side ~
page 28 4. •
A pplies t o veh icl es: with eng ine s peed lim itat io n
Engine speed limitation 71
Do not e xceed ma x. engine speed of XXXX rpm
Th e ~ symbo l ill uminates whe n there is an engi ne con trol malfunc­
t ion . The ind icator light
Er"" in the instr ument cluster also i llum inates .
Th e engine speed is limited to the s peed disp laye d in the driver info r­
mation system . Keep in m ind that the engine speed will not exceed
the value disp layed in the driver information system, for examp le
w hen downshifti ng.
Please go to a n author ized Audi dealer or other qualified workshop to
h ave the mal func tion rep aired .•
Controls and equip ­
ment Safety first
Driver information display
• Headlight range control defective
)
Headlight range control defective !
If the sym bo l ~ ill um ina tes, the dynam ic he adl ight range con tro l is
no lo nger work ing properly . H ave t he system checked and repa ired at
your authorize d Aud i dea ler. •
App lies to ve hicle s: wit h ad apti ve light
Adaptive light defective f:.J
adaptive light defective
When this symbol Ji.., ill uminates, it means that adaptive light is
defective. Go to an author ized Audi dealer to h ave the headlig hts o r
the contro l unit for the adaptive lig ht repa ire d.•
Ignition lock malfunction ..c,
~ Ignit ion lock defective
If the sym bol i n the displ ay comes on, t here is a mal func tion in t he
elect ronic ignit ion lock . Please go to an authorized Audi dealer or
o th er qu alified w orkshop to have the mal func tio n re pa ir ed .•
A pp lies to ve hicl es: w it h Aud i d ri ve sele ct
Adaptive dampers~
Adaptive dampers: system malfunction
If the symbol in the dis pl ay comes on , there is a malfunction in the
adaptive dampers . P lease go to an au thorized Aud i dea le r or other
qualifie d wo rks hop to have t he malfunct io n repaire d.•
Vehicle care Technical data

Opening and closing
Opening the windows
- Press the switch to t he first stop and hold i t until t he
window reac hes th e desir ed posi tion.
- P ress the switc h briefly to the
second stop to automati­
cally open the window .
Closing the windows
-Pull t he sw itch to th e first stop and ho ld it until t he
w indow reac hes t he desired posi tion .
- P ull the sw itc h brie fly to t he
second stop to a uto matica lly
cl os e th e win dow.
Power window switches
© Drive r's door
© Passenger's doo r
© Left r ear door
@ Right re ar d oo r
You can open or close all the windows w it h the switch=> page
47,
fig . 40.
& WARNING
• Do not leave children unattended in the vehicle, especially with
access to vehicle keys . Unsupe rvised use of the keys can result in
starting of the engine and u se of vehicle sy stem s such as power
windows , etc. which could result in serious injury.
• Remember -you can still open or clo se the power windows for
about ten minutes after the ignition is switched off . Only when
either of the doors are opened are the power windows switched
off .
• Be careful when clo sing the windows . Check to see that no one
is in the way, or serious injury could result!
& WARNING (c on tinued )
• Always remove the ignition key whenever you leave your
vehicle.
• If y ou lo ck your vehicle from the outside, no one, e specially
children, should remain in the vehicle.
• Do not stick anything on the window s or the windshield that
may interfere with the dr iver's field of vision.
[I) Tips
• When you open the doors, the windows automatically lower about
1 0mm.
• After the ignition has been switc hed off, the w indows can still be
opene d or closed fo r ab out 1 0 min utes. The w indow reg ula tors are
not switched until t he d river's or passe nger's door is opened .•
Convenience opening/closing
The wind ows can be ope ned and closed with the mechan­
i c al key or the emergenc y key .
Fig. 41 K ey turn s for
o pe nin g an d cl osin g .._

Clear vision
when outside light is very low . This is to r emind you , the driver , to
s witch on the headlight s before it get s too dark.
• Canada models : inst rument p anel illumin ation will stay br ight
regardles s of the inten sity of ambient light. Alw ay s be aware of
changes in outs ide light conditions wh ile you are driving. Respond
in time to fading daylight by turning the light switch to po sition
io
(or "AUTO" if your car is equipped with this feat ure) to turn on your
headlights .•
A ppli es to ve hicles : wit h xe non h eadlights
Xenon headlights
After starting the engine, the xenon head lights are automat ically
adjusted to the load and ang le of t he vehicle (for e xamp le, dur ing
acce leration and brak ing) . This prevents oncom ing traffic from expe ­
r ienc ing unnecessary headlight glare from yo ur xenon head lights.
If the sy ste m is not opera ting p roperly, a warning symbol in t he Auto ­
Check Control is displayed~
page 35. •
App lies to vehicles : w ith adapti ve lig ht
Adaptive Light
Wh en driving around bends, the relevant ar ea of the road
is better illuminated .
Fig . 68 Adaptive lig ht
w hen driving
The benefit of adaptive light is that the curve and the edge of the road
are better illum inate d~ fig. 68. Dyn am ic a daptive light is con trolled
automatically, depend ing on ve hicle speed and steering whee l angle .
When driving around bends, the headlights are contro lled accord ing
t o s teer ing whee l angle . So t hat there is no bla ck ho le ahea d of the
vehicle , the two ma in beams pivot at d ifferent angles.
[I] Tips
The system works above a speed of about 6 mph (10 km/h) .•
Emergency flashers A
T h e eme rgency flash ers m akes ot her mot ori st s a ware
that you or y our vehicle a re in an eme rgency situation.
Fig. 69 Eme rgenc y
fla she r sw itch
Pr ess the swi tch~ => fig. 69 to tu rn the eme rgenc y
flash ers on or of f.
When the e merge ncy flashers are on, all fou r turn sig nals blink at the
same t ime. The turn signal indicator lights¢¢ in the i nstr ument
cl uste r, as well as the ligh t in the eme rge ncy flasher switch ~ blink
likewise . The emergency flashers also wo rk when the ignition is
t urned off. .,_

____________________________________________________ T_r_a _ n_ s_m_ i_ s _s_ i_ o _ n __ _
The selector lever must be in Nor P . If one o f the dr iv in g positions is
e n gag ed a saf ety s witch will preven t the engin e from b eing sta rt e d.
S ee also=>
page 106.
Be fore you move t he se lecto r lever from t he P position, yo u m ust
a lw ay s a ppl y the b rake pedal before and while depr ess ing the bu tton
in t he handle of the selector lever.
_& WARNING
• Unintended vehicle movement can cause serious injury.
- When the selector lever is
in a driving position, the vehicle
may creep, even at idle speed. Therefore do not release the
parking brake
or foot brake until you are ready to move,
because power is transmitted to the wheels as soon as a driving
position is engaged.
- Do not accelerate while selecting a driving position . At this
time the engine must be at idle speed so that undue stress is
not placed on the clutches in the transmission.
- Remember : · even when stopped briefly with the automatic
transmission
in " D", "S" or "R", engine power is being trans­
mitted to the wheels. Your vehicle could "creep " forward or
backward. When stopped, keep the brake pedal fully
depressed and use the parking brake if necessary to keep the
vehicle from rolling .
• If the selector lever is unintentionally moved into N while you
are driving, take your foot off the accelerator pedal and wait for
the engine to return to idle speed before selecting a driving posi­
tion.
• Never shift into "R" or "P " when the vehicle is in motion .
• Never get out of the d river's seat when the engine is running.
• If you must get out of the vehicle , move the selector lever
securely into the P position and apply the parking brake firmly .
• If the engine must remain running, never have any driving
position engaged when checking under the hood. Make sure the
selector lever has securely engaged and is locked in "P " with the
Controls and equip ­
ment Safety first
& WARNING (
cont inued)
parking brake firmly set=> page 272, "Engine compartment ".
Otherwise, any increase in engine speed may set the vehicle in
motion, even with the parking brake applied. •
App lies to vehicles : w it h auto mat ic t ransmiss ion
Selector lever positions
T his s ection d escrib es the s ele ct or l eve r posi tions and
drivin g ran ges.
Fig. 152 Di splay in
the instrum ent cluster:
selector lever In posi ­
tio n P
Th e sele ctor lever posi tion engaged appe ars ne xt to the se le ct or lever
as well as in the instr umen t cluster display .
P -Park
In this selector lev er position the transmiss ion is mecha nica lly
l oc ked. Engage
P only when the vehi cle is comple tely sto pp ed=> &
in " Driving t he automatic transmiss io n" on page 148.
T o sh ift in o r o ut of position P , yo u must first press an d hold the brake
peda l
and th en press t he r elease b utton in t he se lec to r l eve r hand le
wh ile moving the selector lever to or from
P. Yo u can s hif t out of thi s
posit ion on ly with t he ignit ion on . .,,
Vehicle care Technical data

1111....__T_ r_a _n_ s_m _ i_s _s _ i_o _n ___________________________________________________ _
Stopping
- Press a nd hold the brake pedal un til the vehicle has come
to a com plet e stop.
- Keep the brake pedal depressed so that the vehicle cannot
roll forward or backward w hile it is idli ng => & .
- Once sto pped,
do not depress t he accelerator pedal to rev
up the engine=> &.
Parking
- Press a nd hold th e br ake pedal u ntil th e v ehicle has com e
to a comp lete stop .
- S et the parki ng brakefir mly=>page
111, "Pa rking".
- Press an d hold the re lease button i n th e selector lever
handle, move the selector lever into
P and then let go of
the re lease button ~ & .
Your vehicle is equipped with a starting assist that a llows for eas ier
s t arting on in clines. The sys tem is activa ted w hen the brake ped al is
depressed for a
few seconds . After releasing the brake pedal, the
bra ke powe r is he ld for a moment to prevent the vehicle from ro lli ng
back when starting .
T he selector lever must be in Nor
P. If one of the driving positions is
engaged a safety switch will p reven t the eng ine from be ing started .
See also =>
page 106.
Before you move the selecto r lever from t he P posi tio n, yo u m ust
always app ly the brake peda l befo re and whi le depressing the button
in the handle of the selecto r lever .
& WARNING
• Unintended vehicle movement can cau se serious injury.
& WARNING (c on tinued )
-When the selecto r lever is in a dri ving pos ition, the vehicle
may creep , even at idle speed. Therefore do not relea se the
parking brake or foot brake until you are ready to move ,
becau se power is transmitted to the wheels a s soon as a driving
position i s engaged.
- Do not a ccelerate while selecting a driving p osition. At this
time the engine must be at idle sp eed so that undue stress is
not placed on the clutche s in the transmi ssion.
- Remembe r: • even when stopped briefly with the automatic
transmi ssion in "D ", "S " or "R ", engine power i s being trans·
mitted to the wheels . Your vehicle could "creep " forward or
backward . When stopped, keep the brake pedal fully
depressed and use the parking brake if necessary to keep the
vehicle from rolling .
- If the selector le ver is unintentionally moved into N while
y ou are driving , take your foot off the accelerator pedal and
wait for the engine to return to idle sp eed before selecting a
driving position.
- Never shift into "R " or "P " when the vehicle i s in motion .
- Never get out of the driver 's seat when the engine i s running .
- If you must get out of the vehicle , move the selector le ver
s ecurely into the P position and apply the parking brake firmly.
- If the engine must remain running , never have any driving
position engag ed when checking under the hood. Make sure
the selector lever has securely eng aged and is locked in "P"
with the parking brake firmly set=>
page 272, "Engin e
compartment ". Otherwise, any increase in engine speed may
s et the vehicle in motion, even with the parking brake
applied. •

Intelligent technology
--------------------------------------------------' "---.L==--
The system operates across the entire speed range in combination
with the ABS system. If the Anti-Lock Brake System (ABS) malfunc­
tions, the ESP will also shut down.
How the system works
The Anti-Lock Brake System (ABS), Electronic Differential Lock (EDL)
and the Anti-Slip Regulation System (ASR) are integ rated in the elec­
tronic stabilization program . In addition to the data provided by
these functions, the ESP control unit requires additional measure­
ment data provided by high performance sensors . The rotational
speed of the vehicle about its vertical axis, vehicle acceleration in the
fore-and-aft and lateral directions, the brake pressure, and the
steering angle are all measured .
Th e direction in which the driver wishes to travel is determined with
the aid of the steering angle and vehicle speed and is con tinually
compared with the actual behavior of the vehicle. If the two do not
match, for example, when the vehicle starts hydroplaning on a wet
road, ESP will automatically brake the appropriate whee l to correct
the problem.
The vehicle is then stabilized by the forces acting on the whee l during
brak ing.
If the vehicle is oversteering (the vehicle turns too sharply
and the rear wheels slide toward the outside of a curve), the brakes
are mainly applied on the wheel that is on the outside of the curve. In
the case of a vehicle that is
understeering (the vehicle does not turn
sharply enough and pushes out of a curve), the brakes are applied as
needed on the wheel that is on the inside of the curve or additionally
on the other wheels. An acoustic signal indicates when ESP brake
application cuts in=> &.
The system operates across the entire speed range in combination
with the ABS system =>
page 245. If the Anti- Lock Brake System
(ABS) malfunctions, the ESP will be out of action as well.
Activating
When you turn on the engine, ESP will automatically be activated and
w ill perform a self-test. As soon as the test is comp leted, the system
is in normal operating mode.
Controls and equip­
ment Safety first Vehicle operation
You can activate a
deactivated ESP or deactivated ESP/ ASR if required
by pressing the =>
page 240, fig. 214 => page 240, fig. 213 button.
When they are activated, the message
ESP/ ASR on appears briefly
in the display.
Deactivating
The ESP should normally be activated all the time. If necessary, you
can deactivate Anti-Slip Regulation (ASR) or the Electron ic Stabiliza ­
tion Program (ESP) by press ing the button =>
page 240, fig. 214 .
• Deactivating ASR: Tap the button . In certain exceptional s itua­
t ions (e.g. driving with tire chains), the Anti-Slip Regu lation (ASR) can
be deact ivated =>
page 242. The message ASR off appears in the
display as we ll.
• Deactivating ESP/ASR Press the button for more than 3 seconds .
With the ESP/ASR deactivated, the ESP check light comes on, see
=>
page 14. The message ESP switched off appea rs in the display as
well.
& WARNING
The Electronic Stabilization Program is nevertheless subject to the
laws of physics. It is particularly important to pay attention to
this fact on wet and slippery roads. It is therefore important that
you always adapt your driving to the condition of the road and
traffic conditions . Do not allow the increased safety provided by
the Electronic Stabilization Program system to lull you into
accepting additional safety risks.
u
Vehicle care Do-it-yourself service Technical data

Intelligent technology
--------------------------------------------------' "---.L==--
The ASR works in conjunction with the ABS. If a malfunction should
occur in the ABS, the ASR w ill also be out of action.
Activating
The ESP is automatically activated when the engine is started and it
performs a self-test. You can activate a deactivated ASR if required by
pressing the=>
page 240, fig. 214 button. When it is activated, the
message
ESP/ASR on appears briefly in the display .
Deactivating
You can deactivate the ASR if required by pressing the button (for less
than 3 seconds) =>
page 240, fig. 214. With the ASR deactivated , the
ESP check light comes on, see=>
page 14 . The message ASR off
appears in the display as well. The ASR can be deactivated at any
speed .
The ASR should normally be activated a ll the time. Only in certain
exceptional situations when some slip is desirable does it make sense
to deactivate the ASR. Examples:
• when driving with tire chains
• when driving in deep snow or on loose ground and
• when rocking the vehicle loose after it has become stuck .
When the abnormal situation is over, you should activate the ASR again.
& WARNING
The increased safety afforded by ASR does not mean that you can
take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
[I] Tips
To ensu re that the ASR works properly, all four whee ls must be fitted
with ident ical t ires. Any differences in rolling radius of the t ires can
cause the system to reduce eng ine power when this is not desired.
See also=>
page 307, "New tires and replacing tires and wheels". •
Safety first
Braking
General information
What affects braking efficiency?
Operating conditions and driving habits
The brakes on today's automobiles are still subject to wear,
depending la rgely on ope rating conditions and driving habits=>& .
On vehicles that are either driven mostly in stop-and-go city traffic or
are driven hard, the brake pads should be checked by your authorized
Audi dealer more often than specified in the
Warranty & Mainte­
nance booklet.
Failure to have your brake pads inspected can result
in reduced brake performance .
On steep slopes, you should use the braking effect of the engine. This
way, you prevent unnecessary wear on the brake system. If you must
use your brakes, do not hold the brakes down continuously. Pump the
brakes at intervals.
Noises may occur when brak ing depending on the speed, braking
force and outside cond itions such as temperatu re and humid ity.
Moisture or road salt
If you are driving faster than 31 mph (50 km/h) and the windshield
wipers are on, the brake pads will briefly touch the brake discs in
regula r interva ls so as to improve reaction time when braking on wet
surfaces. You, the driver, will not not ice anything.
Under certain condit ions, for example, when driving through water or
very heavy rai n, or even after washing your vehicle, the braking effect
can be reduced due to moisture (or in free zing conditions ice) on the
bra ke pads. A few careful brake applications should dry off the brake
pads or remove any ice coatings.
Th e effectiveness of the brakes can be reduced when the vehicle is
dr iven on a salt-covered road and the brakes are not used. H ere too,
you should clean off accumu lated salt coating from brake discs and
pads with a few careful applications of the brake=>&,.
Vehicle care Technical data

Intelligent technology
'-------------------------------------------------
Corrosion
T he re may be a te ndency fo r d irt to build u p on the bra ke pads and
co rrosion to form on the d iscs if the car is not dr iven reg ularly o r only
for short trips with litt le use of the bra kes .
If the brakes a re not used freq uen tly, or if co rrosion has formed o n
the discs, it is advisable to clean off the pads and discs by braking
fir mly a few times from a mode rat ely h igh spee d~ & .
Faults in the brake system
If yo u sh ou ld noti ce a sudden increase in b rake peda l trave l, then one
of the two brake circu its may have failed~& .
Low brake fluid level
Ma lfunctions can occ ur in t he brake system if the brake fluid level is
t oo low. The bra ke f lu id level is moni tore d elec tron ically.
Brake lin ing wear status
Brake lin ing wear may be checked by v isua l inspect ion of the condi­
tion of the brake pads throu gh the open ings in the whee l.
If neces­
sary, the whe el may be removed fo r thi s insp ection~
page 320,
"Changing a w hee l".
& WARNING
• You should perform braking maneuvers for the purpose of
cleaning the brake system only if road conditions permit. Other
road users must not be put at risk - you may cau se an accident!
• Before descending a steep grade, reduce speed and shift trans­
mission into a lower gear or lower driving range. Do not ride the
brakes or hold the pedal down too long or too often . This could
cause the brakes to get hot and diminish braking efficiency.
• Do not "ride the brakes " by resting your foot on the pedal when
you do not intend to brake . This may cause the brakes to overheat ,
premature wear and increased stopping distance.
• Under certain climatic and operating condition s such as
passing through water , driving in heavy rain or after washing the
& WARNING (co ntinued )
vehicle, the effectiveness of the brakes can be reduced . In winter,
ice can ac cumulate on the brake pads, linings, dis cs and drums.
Carefully apply brakes for a test. Brakes will dry and ice coatings
will be cleaned off after a few careful brake appli cations.
• Driving for an extended period of time on salt-covered roads
without u sing your brakes can also affect braking efficiency . Clean
off accumulated salt coating from b rake discs and pads with a few
careful brake applic ations.
• If you damage the front spoiler, or if you install a different
spoiler, be sure the air flow to the front brakes i s not obstructed .
Otherwise the brake system could overheat reducing the effective­
ness of the entire brake system.
• Failure of one brake circuit will impair the braking capability
resulting in an increased stopping di stance. Avoid driving the
vehicle and have it towed to the nearest authorized Audi dealer or
qualified workshop.
n
Brake booster
The b roke boost er odds extra broking po wer.
The bra ke boos ter wor ks wi th v acuum pressure whi ch is crea ted o nly
when the eng ine is ru nning~ &.
& WARNING
• Never let the vehicle roll to a stop with the engine shut off.
• If the brake booster is not working, for example when towing
your vehicle , or because the brake booster has somehow been
damaged, the brake pedal mu st be pressed considerably harder to
make up for the lack of booster assistance. •

Intelligent t echnology
'-----------------------------------------------
Servotronic® - advanced power
steering system
The power steering systems uses the power of the
running engine to allow precise steering with little effort .
The advanced Servotronic® power steering system senses the road
speed and ele ct ronically adjusts power assistance to provide
comfortable and safe steering response exactly matched to the
veh icle speed.
Power steering will not work if the engine is off. As a resu lt, the
steeri ng wheel will be hard to turn.
T he power steeri ng fluid level is checked du ring the sched uled main ­
tenance services .
0 Note
If there is an electronic malfunction, servotronic will still function
like a conventional power s teer ing system, provid ing a cons tant
steering support force that is no longer proportionate to the vehicle
speed. This is most noticeable when t urning the s teer ing wheel at low
speeds (for example when park ing), -more effort will be required
than us ua l.
• Be aware of the d ifferent than usual steering response and adjust
your stee ring force accord ingly .
• Have the prob lem checked and set right by an Audi dealer as soon
as possib le.
[ i ] Tips
• When the e ngine is running, neve r hold the stee ring whee l turned
all the way to the right or to the left for longer than 15 seconds. The
powe r steering pump wi ll overheat the hydra ulic fluid if yo u keep
holding the steering wheel turned all the way . This is likely to damage
t he power s teer ing system . •
If the power steering system s hou ld fa il entirely, or if the engine
is no t ru nning (fo r examp le, while be ing towed), you will st ill be able
to steer the vehicle. However,
considerably more effort will be
req uired to do so .
• If the power steering system should have a leak, or is not func­
tioning prope rly, con tact your au thor ized A udi dealer immedia tely.
• The power steer ing system requires a specia lly formulated
hyd raulic fluid. The power steer ing rese rvoir is the one loc ated
farthest to the rear on the left s ide of the eng ine compartme nt
=>
page 281. The correct fluid leve l in the reservo ir is im port an t fo r
proper functioning of the power steeri ng .•
Applies to veh icles: with A ll Whee l D rive
Driving with your quattro ®
With all wheel drive, all four wheels are driven.
CieneraL information
Wi th all wheel drive, power is d istribu ted to all fou r whee ls. This
happens automatically depending on your dr iv ing style and the road
condi tions a t the t ime. See also=>
page 242, "Ele ct ronic differen tial
lock (EDL)".
W inter tires
When driving in the winter, your vehicle with a ll whee l dr ive has an
adv anta ge, eve n w it h regula r tir es. In w inte r road co nditio ns i t may
be advisable to mount winter tires (or all-season tires) for improved
dr iveabili ty and b raking: t hese tires m ust be moun ted on all four
wheels . See also=> page 311, "Winter t ires".
Tire chains
Where tire chains are mandatory on certa in roads, th is normally also
app lies to veh icles with a ll w heel d rive =>
page 312, "Snow chains". ~

Intelligent technology
--------------------------------------------------' '----'----
Driver notification in the instrument
cluster display
If battery power drops into the range where it can limit the ability of
the engine to start, this is shown in the instrument cluster display
with the following driver message:
Lo w b attery charge : batt ery will be charged while driving
Th is notification rem inds you that the starting capability of the
engine may be limited . As soon as you start driving again, the batte ry
w ill be recharged and the notification w ill go out.
Dri ver notification appears and goes out again
If th is dr iver notification appears after the ignition is turned o n or
while driving a nd it goes out again afte r a w hile, the battery has been
adequate ly recharged.
Driver no tification appears and does not go out
again
If th is dr iver notifica tion appears afte r the ignition is turned o n or
while driving and does not go out again, the battery 's state of charge
is not in the optimal range . Starting ability is restricted. Have the
battery checked as soon as poss ible by an au thor ized Aud i dea le r o r
qualified workshop. •
Controls and equip­ ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data