check engine AUDI A5 COUPE 2011 User Guide

When a yellow warning symbol appears, one warning tone sounds. A
driver message appea rs as well to expla in the ma lf u nction in more
detail. The driver warning goes out after about 5 second s, but it can
be brought up at any time by pressing the
! SETI button again.
Check t he function displayed as soon as possible . T he yellow symbol
wi ll not go out again until the reason for the malfunct ion has been
corrected.
I f several priority 2 malfunctions are present , the symbols appear in
succession and remain for about 2 seconds .
Dynamic steering*
=:> page37
Worn brake pads =>page 38
Battery voltage =>page39
IIDefective light bulb* =>page39
Check engine oil level => page 40 or
=> page40
Engine oil sensor malfunction =>page40
Low f uel level => page 39
I
-
Controls and equip ­
ment
jl Windshield washer fluid
level low
Convenience key*
Key not in vehicle
Light/rain sensor* defective
Dynamic headlight range
control defective
Safety first
=> page 39
=> page 38
=>page 38
=>page40
Dri ver information display
II Battery in remote control key =>page43
-
Electromechanical => page 118
parking brake
-Engine speed limitation* =>page40
adaptive light* defective =>page40
Ignition lock malfunction =>page40
Adaptive dampers* =>page40
"Windshield wiper defective => page 41
-
Significant loss of a ir pressure* => page 311
Tire pressure monitoring sys-=> page 311
tern * (malfunction)
W Tips
The speed warn ings warning threshold 1 and warn ing threshold 2
r are also yellow symbols in some models. The warning is a lways
shown as a small symbol in the upper area of the d isplay
=> page 30. •
App lies to ve hicle s: wit h Aud i d ri ve sele ct
Dynamic steering'"'
Dynamic ste ering: S ystem mal fu ncti on
This d river message and the symbol appear when a system
ma lfunction occurs dur ing travel. You can continue to drive ca refu lly
at a reduced speed to a qualified workshop. Steering can be more _,.
Vehicle care Technical data

Driver information display
difficult or sensitive than usual. The steering wheel can also be at an
angle when driving straight.
Dynamic steering: initialization
If this driver message appears and the indicator light is flashing on
the instrument panel, dynamic steering is being reinitialized. Once
you start the engine after this is finished, the steering wheel will be
easy to move. Re-initialization might be necessary if the steering
wheel was moved hard to the left and right while the vehicle was not
moving. The display goes out as soon as initialization is complete.
& WARNING
Have the dynamic steering system malfunction repaired as soon
as possible by an authorized Audi dealer or any qualified workshop
- risk of accident!
rn Tips
The dynamic steering stability systems are not available in the event
of a system malfunction. •
Applies to vehic les: with con ven ie nce ke y
Key not in vehicle
Key not in vehicle
This reminder appears along with the 7 symbol if the master key is
removed from the vehicle with the engine running. It is intended to
remind you (e.g. when chang ing drive rs) not to continue the journey
without the master key.
If the master key is no longer in the vehicle, you cannot switch off the
ignition after stopping the engine and you also cannot start the
engine again. You also cannot lock the vehicle from the outside. •
App lies to veh icles : with light/ra in senso r
Light/rain sensor defective )
...i-Automatic headlights/automatic wipers defective
If the symbol illuminates, the light sensor has failed . For safety
reasons the low beams are turned on permanently with the switch in
AUTO. However, you can continue to turn the lights on and off using
the light switch. In the case of a defect in the rain sensor, the wind­
shield wiper lever functions are still available. Have the light/ rain
sensor checked as soon as possible by an authorized Audi dea ler. •
Worn brake pads J
Brake pads!
If the warning light illum inates, immediately contact your authorized
Audi dealer or qualified workshop to have all brake pads inspected .
On USA models the warning light comes on together with the
warning light
BRAKE . Both sets of brake pads on an axle must always
be replaced at the same time.
& WARNING
Driving with bad brakes can cause a collision and serious personal
injury.
• If the warning light and the warning light
BRAKE1> with the
message Brake pads! comes on in the instrument cluster display,
immediately contact your authorized Audi dealer or qualified
workshop to have all brake pads checked or replaced if
necessary. •
l) BRAK£: USA mode ls only

App lies to veh icles : w ith d efecti ve ligh t bulb w arn in g
Defective light bulb warning t
The defective light bulb warning monitors the function of
the li ght bulbs in the vehicl e.
Th e defect ive light bulb warn ing monitors t he f unct ion of the l igh t
bulbs. If a defective light bu lb is detected, or if a light bu lb has
burned out, a ye llow symbol appears as well as a no tifica tion t hat
shows which light bulb is defective .
Defective bulb
If this symbol I lights up, a turn signal (front or rear), a headlamp, a
bra ke light, t he back -up light, a fog lamp or a re a r fog lamp h as
fa iled.
& WARNING
• Light bulbs are unde r pressure and can explode when bulbs a re
replaced -risk of injury .
• With gas-discharge lamp s* (xenon headlights ), the high­
voltage component mu st be handled appropriately. Doing other ­
wise poses a ri sk of death!
[ i ] Tips
Have an a uth orized A udi dea ler or other qualified workshop perform
t he rep lacement or the repa ir.•
Windshield washer fluid level too low -..>
Please refill washer flu id
If the symbol illuminates, add windshield washer fluid to the washer
system and a lso to the headlig ht washer system* =>
page 290. •
Controls and equip ­
ment Safety first
Driver information display
Fuel supply too low l
When the symbol
illuminates, this means there are about 2.1
gallons (8 liters) of fue l lef t in t he fuel t ank. T ime to refuel!
:::>page 270 .
If the symbol lig hts up, even when there is ample fue l in the tank, and
the text
TANK SYSTEM MALFUNCTION l CONTACT WORKSHOP
appears in the display , the re is a fault in the system. Contact a quali­
fied wo rkshop to have t he fault rectified. •
Applies to v ehicles : w ith batte ry volt age warni ng
Battery voltage
If battery powe r drops into the range w here it can limit the ability of
t he engine to s tart, th is the symbol -appears in t he instr ument
cluster display with the fo llowing d river message
battery charge low:
Indicates charging by being driven .
While this dr iver not ification is displayed, you have to be prepared for
limited sta rting capability .
Driver message appears and goes out aga in
If this dr ive r mess age appe ars af ter the igni tion is t urned on o r w hile
dr iv ing and it goes out again after a wh ile , the battery has been
adequ ate ly rech arged.
Driver message appears and does not go out again
If this dr iver not ificat ion appears a fter the igni tion is turned o n or
wh ile driving and does no t go out again, the battery 's state of cha rge
is no t in t he opt im al range . St art ing capability is restricte d. H ave t he
batte ry checked at an authorized Aud i dealer or other q ualified work ­
s hop as soon as poss ible. •
Vehicle care Technical data

Driver information display
Check engine oil .....
:... Add oil , max x qt (l). You may continue driv ing
I f t he • " sym bo l lights up displaying this dr ive r mess age, then ad d a
maximum of
l li te r at you r earliest opportunity=> page 279. •
Engine oil level ~:.
Please check oil level
W hen the symbol i lluminates, check the engine oi l level as soon as
poss ible =>
page 2 79. Top off the oil at yo ur earliest o ppor tunity
:::> page 279. •
Engine oil sensor defective ...
,. Oil level! Sensor defective
If th e sym bol ill uminates , con tact your au thor ized A udi d ealer and
have the o il senso r inspected . Until you have this done, check the oil
level e ach t ime you ref ue l just to be o n the s afe side =>
page 2 79. •
Applies to veh icles: w ith eng ine spee d limitation
Engine speed limitation .7
~ Do not e xceed ma x. eng ine speed of XXXX rpm
Th e /! symbo l illu minat es whe n there is an engine con trol malfunc­
tion . The ind icator light in the i nstr ument cluster also illuminates.
T he eng ine speed is limited to the speed disp layed in the driver infor­
mation system . Keep in mi nd that the e ngine s peed will not exceed
the va lue d isp layed in t he d rive r informat ion system, for example
w hen downshifti ng.
Please go to an authorized Audi dealer or other qualified workshop to
have the malfunc tion rep air ed. •
Headlight range control defective ( >
, Headlight range control defective !
If the sym bol i llumin ates, the dyn am ic he ad lig ht r ange contro l is
no longer working pro perly . Have the system checked and repaired at
your aut horize d Au di dea ler. •
Appli es to veh icles : with ada ptive light
Adaptive light defective .. U
adaptive Light defective
When this symbol.., illuminates, it means that adaptive light is
defe ctive. Go to an a uthor ized Audi de ale r t o have the hea dlight s o r
the contro l unit for the a dapt ive light repaired .•
Ignition lock malfunction
Ignition lock defective
If the symbo l i n the d ispl ay c omes on, t he re is a m alfu nction in the
elect ronic ignit ion lock . Please go to an a uth orized Audi dea ler or
o ther qu alifi ed workshop to h ave t he mal fun ction r epair ed. •
App lies to vehicle s: wit h Au di d rive s elect
Adaptive dampers
Adaptive dampers: system malfunction
If the symbo l in the display comes on, the re is a malfunction in the
adapt ive dampers . Please go to a n au thor ized A udi d eale r or ot her
qualifie d workshop to have t he malfunction repai red. •

Power windows
Controls
The driver can operate the window regulator for the
driver's door with the left switch and the window regu­
lator for the passenger's door with the right switch.
Fig. 44 Driver's door:
power window
switches
If the respective switch is pushed or pulled the window will
open or close. The power window switches have a
two-posi­
tion function:
Opening the windows
- Push the switch to the first stop and hold it there until the
window has lowered to the desired position .
- Push the switch briefly to the
second stop : the window
will automatically open all the way .
Closing the windows
-Pull the switch up to the first stop and hold it there until
the window has risen to the desired position.
- Pull the switch quickly to the
second position: the window
will automatically close all the way.
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
Opening and closing
& WARNING
• Do not leave children unattended in the vehicle, especially with
access to vehicle keys. Unsupervised use of the keys can result in
starting of the engine and use of vehicle systems such as power
windows, etc. which could result in serious injury.
• Remember -you can still open or close 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 closing the windows. Check to see that no one
is in the way, or serious injury could result!
• Always remove the ignition key whenever you leave your
vehicle.
• If you lock your vehicle from the outside, no one, especially
children, should remain in the vehicle.
• Do not stick anything on the windows or the windshield that
may interfere with the driver 's field of vision.
(I) Tips
• When you open the doors, the windows automatically lower about
10mm.
• After the ignition has been switched off, the windows can still be
opened o r closed for about 10 minutes. The window regulato rs are
not switched until the driver's or passenger's door is opened. •
Vehicle care Do-it-yourselt service iTechnical data

Instrument lighting
The basic brightness of the illumination for the instru ­
ments, the center console and the display can be
adjusted.
- Press the knob to release it .
N ~ 0 0
i
"'
Fig. 52 Instrument
lighting
Rotating the knob to the right"+" will increase the basic
brightness when it is dark.
- Rotating the knob to the left"-" will decrease the basic
brightness when it is dark.
- Pressing the knob will prevent unintentional changes.
(I) Tips
The illumination for the instrument cluster lights up whenever you
switch on the ignition with the vehicle headlights off . As the daylight
fades, the instrument cluster illumination likewise dims automati­
cally and will go out completely when the outside light is very low .
This feature is meant to remind you to switch on the headlights when
outside light conditions become poor.•
Contro ls a nd e quip ­
m en t Vehicle
OP-eration
Clear vision
App lies to veh icles : wi th xenon h ead lights
Xenon headlights
After starting the engine, the xenon headlights are automatically
adjusted to the load and angle of the vehicle (for example, during
acceleration and braking) . This prevents oncoming traffic from expe­
riencing unnecessary headlight glare from your xenon headlights .
If the system is not operating properly, a warning symbol in the Auto­
Check Control is displayed~
page 40. •
Ap plies to vehicles : wit h adap tive light
Adaptive light
When driving around bends, the relevant area of the road
is better illuminated.
Fig. 53 Adaptive light
when driving
The benefit of adaptive light is that the curve and the edge of the road
are better illuminated ~ fig. 53. Dynamic adaptive light is controlled
automatically, depending on vehicle speed and steering wheel angle.
When driving around bends, the headlights are controlled according
to steering wheel angle . So that there is no black hole ahead of the
vehicle, the two main beams pivot at different angles. ..,_
Vehicle care Do-it-yourselt service iTechnical data

-Transmission •m ___________________ _
& WARNING (continued)
- Do not accelerate while selecting a driving position . At this
time the engine must be at idle speed so that undue stre ss 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 transmitted 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 mo ved into N while you
are driving, take your foot off the accelerator p edal and wait for
the engine to return to idle speed before selecting a driv ing posi­
tion .
• Never shift into R or P when the vehicle is in motion.
• Never get out of the dr iver's seat when the engine is running.
• If you must get out of the vehicle, move the selector lever
secure ly into the P position and app ly 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 parking brake firmly set=>
page 267, "Engine compartment ".
Otherwi se, any increase in engine speed may set the vehicle in
motion, even with the parking brake applied. •
Applie s to v ehicl es: wi th auto matic tra nsm issi on
Selector Lever positions
This section descri bes the se lector lever positions and
driving r ang es .
Fig. 146 Dis play in
the in strument clu ster :
selecto r leve r
in posi ­
ti on P
Th e sele cto r lever posi tio n engaged appears nex t to the se lec tor lever
as well as in the i nstr ument clus ter disp lay .
P -Park
In this selector lever position th e transmission is mechan ically
lo ck ed. En gage
P only whe n the ve hicl e is completely stopped=> &
in "Driving the automatic t ransm ission" on page 151.
To shift in or o ut o f p osit ion P, yo u must first press and hold the bra ke
peda l
and then press t he release button in t he selecto r leve r handle
w hil e moving the selector lever to or from
P. You can shif t out of this
position on ly w it h t he i gni tion o n.
R -Reverse
Th e transm ission will automa tica lly select the lowest gear ratio when
you sh ift into reverse.
Sele ct
R o nl y when t he ve hicle is at a full stop a nd t he e ng ine is
ru nning at idle speed=>
& in "Driving th e automat ic transm issio n"
on
page 151 . ...

Intelligent technology
--------------------------------------------------' '----'----
pressing the=> page 236, fig. 198 button. When it is activated, the
message
ESP/ASR on appears briefly in the display.
Deactivating
You can deactivate the ASR if req uired by press ing the button (for less
than 3 seconds) =>
page 236, fig. 198. With the ASR deactivated, the
ESP check light comes on, see=>
page 15. The message ASR off
appears in the display as well. The ASR can be deactivated at any
speed.
The ASR should normally be activated all the time . Only in certain
exceptional situations when some slip is desirable does it make sense
to deactivate the ASR. Examp les:
• 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 sho uld 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 ensure that the ASR works properly, all four whee ls must be fitted
with ident ical tir es . Any differences in rolling radius of the tir es can
cause the system to reduce eng ine power when this is not desired .
See also =>
page 303, "New tires and replacing tires and wheels".
Controls and equip­
ment Safety first Vehicle operation
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 b rake 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 b rak 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 (o r 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 Do-it-yourself service 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 3 16,
"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 L ______________________________________ _
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 effor t 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 r ight 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 rig ht 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 2 76 . T he correct fluid leve l in the reservo ir is im port an t fo r
proper functioning of the power steeri ng .•
Dr"ving with your quattro®
With all wheel drive, all four wheels ore driven.
General information
With all wheel d rive, power is d istributed to all four wheels. This
h appens a utomatically depending on your dr iv ing style and t he road
conditions at the time . See also =>
page 238, "Electronic different ial
loc k (ED L)".
T he all whee l dr ive concept is designed for high engine power . Your
veh icle is except ionally powe rf ul and has excellent driving character­
istics both under normal driving condit ions and on snow and ice .
Always read an d fo llow safety precautions =>& .
Winter tires
When driving in the winter, your vehicle with a ll whee l drive has an
adva ntage, even w ith regular t ires . In winter road cond it io ns it may
be advisable to mount winte r tires (or all-seaso n tires) for improved
dr iveability a nd b rak ing: t hese tires mus t be mounted on
all four
wheels . See also => page 307, "Winter ti res" .
Tire chains
Where tire chains are mandatory on certa in roa ds, this norma lly a lso
applies to veh icles with a ll w heel drive =>
page 308, "Snow chains" . Iii-