AUDI A5 COUPE 2011 Owner's Guide

On-Board Diagnostic system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) in the instrument cluster
~ page 14, fig. 7 is part of the On-Board Diagnostic (OBD II) system.
The warn ing/ind icator light illuminates when the ignition is switched
on and goes out after the engine starts and the idle has stabilized.
This indicat es that the MIL is working properly.
If the light does not go out after the engine is started, or illuminates
while you are driving, a malfunction may exist in the engine system.
If the light illuminates, the catalytic co nverter could be damaged.
Continue driving
with reduced power (avoiding sustained high
speeds and/or rapid accelerations) and have the condition corrected.
Contact your authorized Audi dealer .
If the light illuminates, the electronic speed limiter may also be
malfunctioning. For more information~
page 29, "Electronic speed
limiter".
An improperly closed fuel filler cap may also cause the MIL light to
illuminate ~
page 271. •
On-Board Diagnostics
Contro ls a nd e quip ­
m en t
Fig. 22 Location of
Data Link Connector (DLC)
Vehicle OP-eration
Driver information display
On-Board Diagnostics monitors the components of your emission
control system . Each monitored component in your engine system
has been assigned a code. In case of a malfunction, the component
will be identified and the fault stored as a code in the control module
memory .
The MIL light may also illuminate if there is a leak in the on-board fue l
vapor recovery system. If the light illuminates after a refueling, stop
the vehicle and make sure the fuel filler cap is properly closed
=;, page 271 .
In order to make an accurate diagnosis, the stored data can only be
displayed using specia l diagnostic equipment (generic scan too l for
OBD).
In order to connect the special diagnostic equipment, push the plug
into the Data Link Connector (DLC). The DLC is located to the right of
the hood release=;, fig. 22.
Your authorized Aud i dealer or qualified workshop can interpret the
code and perform the necessary repair. •
Electronic speed limiter
Your vehicle may be factory equ ipped with tires that are rated for a
maximum speed of 130 mph (210 km/h). This is less than the
maximum speed of your vehicle. To reduce the risk of sudden tire
failure and loss of contro l if the vehicle is operated at excessive
speeds, your vehicle also has an electronic speed limite r. The elec­
tronic speed limiter prevents your vehicle from going faster than the
tire speed rating . For more information =;,
page 303.
If the engine control unit receives faulty vehicle road speed signals,
the Malfunction Indicator Lamp (MIL) will illuminate . If this
occurs, contact the nearest authorized Audi dealer for ass istance. .,,_
Vehicle care Do-it-yourselt service iTechnical data

Driver information display
& WARNING
Alwa ys observe the posted speed limits and adjust your speed to
suit pre vailing road, traffi c and weather condition s. Never drive
your vehicle fa ster than the maximum speed rating of the tires
installed .•
Speed warning system
Overview
Th e speed war ning syst em helps you to keep your d riv ing
speed below a set speed limit.
Th e speed warning system warns if the dr iver exceeds a prev iously
sto red ma ximum speed. A warning tone will sound as soon as the
vehicle speed exceeds the set speed by about 3 mph (3 km/h). At the
same time, a warning symbol appears in t he di sp lay. The symbo l's
appea rance might be different in some models .
T he speed warn ing system has two warnin g thresho lds th at f unctio n
independently of eac h oth er and that have somewhat diffe rent
purposes:
Speed warning 1
Yo u ca n use speed war ning 1 to set the maximum speed wh ile you a re
driving. This setting will remain in effect until you turn off t he igni­
tion , assuming t hat you have not changed or reset t he setting .
T he speed w arnin g symbo l
0 (USA mo dels) /8 (Canada mode ls) in
the warning 1 display appears when you exceed the maximum speed .
It goes out whe n the speed falls be low the stored max imum s peed.
T he speed warning symbo l will a lso go out if the speed
exceeds the
stored maximum s peed by more than about 2 5 mph ( 40 km/h) fo r at
least 10 seconds . The stored maximum speed is deleted.
Speed warning 2
Storing warn ing 2 is recommended if you always want to be reminded
of a ce rta in speed, fo r example when yo u are traveling in a country
that has a general maxim um speed limit, or if you do not want to
exceed a specified speed for win ter tires .
The speed warn ing 2 symbol,
8. ( U SA models)/ 8. (Canada models)
appea rs in the d isp lay w hen you exceed the store d speed limi t. U nlike
warning 1, it will not go o ut until the vehicle speed drops be low the
sto red speed limi t.
Sett ing speed warn ing 2
=;, page 31 .
[I] Tips
Even thoug h your vehicle is eq uipped with a speed warning system,
you should st ill watch the speedometer to make sure you are not
dr iv ing fast er th an the speed lim it. •
Speed warning 1: setting a speed limit
Wa rnin g thresho ld 1 is set by the [ SE T] button.
Storing the maximum speed
- Drive at the desire d max imum speed .
Fig. 23 SET butt on in
the in strument clu ste r

- Press the [S ETI button in the instrument panel display
~ page 30, fig. 23 for 1 second.
Resetting the maximum speed
- Drive the veh icle at a speed of at least 3 mph (5 km/ h)
- Press the
[S ET ] button for more than 2 seconds .
The speed warning symbo l E, (USA models)/8 (Canada models) will
appear b riefly in the display when yo u release the
I SETI button to
indicate that the maximum speed has been stored s uccessfully.
T he maxim um speed rema ins sto red until it is changed by p ressing
the
[ SET I button again briefly or until it is de leted by a lengthy push
on the button. •
Speed warning 2: setting a speed limit
The radio or MM I* contro l unit is us ed to set, change or
delete warning threshold 2.
- Select: Funct ion button [CAR I> Instrument cluster >
Speed warning .
Warning thresho ld 2 can be set in the speed range starting from 20
mph to lS0 mph (30 km/h to 240 km/h) . Settings can each be
adjusted in interva ls of 6 mph (10 km/h). •
Auto Check Control
Introduction
The Auto-Check control monitors the function of certain vehicle
features and components . It simp ly makes su re these features and
components are work ing properly. The Auto-Check control works as
long as the ignition is on, as we ll as whenever the vehicle is driven.
Controls and equip ­
ment Safety first
Dri
ver information display
If a component is malfunctioning or if the need for an urgent repair
has bee n de tected, t his will appea r in t he inst rument clus ter display.
You will also hear an audible warn ing tone. The d isp lays are color
co ded in either red or yellow depending on their level of priority.
A red symbol means Danger, a yellow symbo l ind icates Warning . In
certain situations, information message for the driver appear in addi­
ti on to t he red and ye llow symbo ls .
Function test: automatic transmission*
T he Auto-Check Contro l w ill a utomat ically perfo rm a test each time
you switch on the ignit ion. W ith the selector lever in
P or N , the
following message appears in t he d isp lay:
When stationary apply foot brak e while selecting gear .
When you a select a different gear (for example:
R , D , etc.), the
message w ill disappea r and the Auto-Check function is d isplayed .
If there is a ma lfunction, then the malfunct ion message will appear
abou t 15 seconds a fter you st art the vehicle. At the s ame time you
will hear a warning tone. •
Driver information messages
Driv e r information messa ges are sho wn in the instru­
ment cluster display in addition to symb ols.
Fig. 24 In strum ent
clu ster: SET button
~
Vehicle care Technical data

Driver information display
For example, if the transmission selector lever is not in the P position
when the engine is turned off, the following message appears:
Shift to P, otherwise vehicle can roll away. Doors do not lock if
lever is not in P.
The ignition key can only be removed with the selector in this posi­
tion. This and other messages are brought up if a function cannot be
carried out.
Driver messages and red symbols
If a red symbol appears in the display, a driver message is also
displayed automatically.
For example, the symbol for a problem with engine oil pressure
appears in the display . The message:
Switch off engine and check oil level
The driver message in the display goes out after about 5 seconds. The
driver message can be displayed again by briefly pressing the
[ SET]
button ;;;:> page 31, fig. 24.
Driver messages and yellow symbols
If a yellow symbol appears in the display, a driver message is also
displayed automatically.
For example, the symbol appears in the display, indicating low
windshield washer fluid level. The following message also appears :
Please top up washer fluid
The driver message disappears after a few seconds. The driver
message can be displayed again by briefly pressing the
[SETj
button. •
Red symbols
A red symbol means DANCER.
Fig. 25 Display:
Danger symbol
- Pull off the road.
- Stop the vehicle.
- Turn off the engine .
- Check the malfunctioning system. Contact your autho-
rized Audi dealer or a qualified workshop for assistance.
Red symbols indicate a priority 1 malfunction -Danger!
With a priority 1 malfunction, a red symbol appears in the upper
center area of the display~ fig. 25. A driver message appears as well
to explain the malfunction in more detail. When this symbol appears,
three warning tones sound in succession. The symbol continues to
flash until the fault has been corrected.
If
several priority 1 malfunctions are present, the symbols appear in
succession and remain for about 2 seconds.
The driver warning goes out after about 5 seconds, but it can be
brought up again at anytime by pressing the
[SET ] button.=> page 31 .,_

0 Alternator failure => page 33
BRAKE
USA models: =:>page 33
Brake system malfunction

Canada models: =:>page 33
Brake system malfunction
- -
4-
Engine coolant level too =:>page 34
low/engine coolant temperature
too high
~ Engine oil pressure too low =:>page 35
~ II Refill engine oil now =:>page 35
@-e Steering malfunction =:> page 36
©-1 Ignition lock malfunction ::::>poge36
-
Alternator malfunction 0
If the O symbol in the instrument panel display flashes, then there
is a malfunction in the alternator or the vehicle electron ics . A warning
to the driver will appear, too . The driver warning goes out after about
5 seconds, but it can be brought up at any time by pressing the
!SETI
button again.
Usua lly, you can sti ll drive to the next dea lership. Turn off all but the
most necessary e lectr ica l consumers, s ince these dra in the vehicle's
battery.
0 Note
If the the _ f_ warning symbol (coolant system malfunction) a lso
lights up on the instr ument panel during the trip =>
page 34, then
Controls and equip ­
ment Safety first
•
Driver information display
you
have to stop immediately and turn off the engine . The coolant
pump is not work ing anymore--danger of damage to the engine! •
Brake system malfunction
A malfunction in the brake system must be repaired as
soon as possible.
If the warning/indicator light BRAKE (USA models)/((D )
(Canada models) in the instrument cluster flashes, there is a
brake system malfunction . A driver message appears as well
to explain the malfunction in more detail. The driver warning
goes out after about 5 seconds, but it can be brought up at
any time by pressing the
[SET] button again.
Stop the Vehicle and Check the Brake Fluid
-Stop the vehicle .
- Check the brake fluid level=>
page 284.
-Seek professional assistance if necessary .
Warning ! Fault in brake system. Contact
workshop
- Drive carefully to the nearest authorized Audi dealer or
other qualified workshop and have the malfunction
corrected =>
&.
Vehicle care Technical data

Driver information display
Parking brake Please get to a repair shop
-If this symbol appears when the vehicle is stationary or
after the ignition is turned on, check to see if the parking
brake can be released. Drive to an authorized Audi dealer
or other qualified workshop as soon as possible and have
the malfunction corrected. If the parking brake cannot be
opened, then take it to an expert at an authorized Audi
dealer.
- If the symbol appears while you are driving, it is possible
that the traction control or the emergency brake has malfunctioned. It is possible that the parking brake
cannot be applied. It is also possible that the parking
brake cannot be released after it has been applied. Drive
to an authorized Audi dealer or other qualified workshop
to have the malfunction corrected.
If the ABS system malfunctions, the ABS warning/indicator light illu­
minates together with the brake system malfunction warning/indi­
cator light~ & .
& WARNING
• Always observe the warnings in~ page 267, "Engine compart­
ment", before opening the hood and checking the brake fluid.
• Driving with low brake fluid is a safety hazard. Stop the car and
get professional assistance.
• USA models: If the BRAKE warning light and the ' warning
light come on together, the rear wheels could lock up first under
hard braking. Rear wheel lock-up can cause loss of vehicle control
and an accident. Have your vehicle repaired immediately by your
authorized Audi dealer or a qualified workshop. Drive slowly and
avoid sudden, hard brake applications.
• Canada models: If the brake warning light (Q)} and the ABS
warning light come on together, the rear wheels could lock up
& WARNING (continued)
first under hard braking. Rear wheel lock-up can cause loss of
vehicle control and an accident. Have your vehicle repaired imme­
diately by your authorized Audi dealer or a qualified workshop.
Drive slowly and avoid sudden, hard brake applications. •
Engine cooling system malfunction _L
A malfunction in the engine cooling system must be
repaired as soon as possible.
If the _ r_ symbol flashes in the display, either the engine
coolant
temperature is too high or the engine coolant level is
too low. A driver message appears as well to explain the
malfunction in more detail. The driver warning goes out after
about 5 seconds, but it can be brought up at any time by pressing the
(SET) button again .
Switch off engine and check coolant level
- Pull off the road.
- Stop the vehicle.
- Turn off the engine .
- Check coolant level==>
page 282.
-Add coolant if necessary==> page 283.
Continue driving only after the engine coolant
warning/indicator light goes out .
- Contact your authorized Audi dealer for assistance if
necessary .
If the engine coolant leve l is correct, then the radiator fan may be the
cause of the malfunction. ...

& WARNING
• If your vehicle should break down for mechan ical or oth er
rea sons , park at a safe di stan ce fr om moving traffi c, turn off the
e ngine and turn on the hazard warning lights=>
page 62, "Emer­
gency flashers A".
• Never open the hood if you s ee or hear steam or coolant
esc aping from the engine compartment -you ri sk being scalded.
Wa it until you can no longer see or hear steam or coolant
escaping.
• The engine compartment of any vehicle is a dangerou s area .
Before you perform any work in the engine compartment, turn of
the engine and allow it to cool. Follow the warning sti ckers
=> page 267 , "Engine compartment ".
0 Note
Do not cont in ue dr iving if the J_ symbol ill uminates. There is a
ma lfunct io n in the engine coo ling system -yo u could damage your
engine .•
Engine oil pressure malfunction ~
The red e ngi ne oil pressure warni ng symbol requires
immediate servic e or repair. Driving with a low oil pres ­
sur e indication is likely to caus e severe engine damage.
If the ~ symbol on t he disp lay flashes , the engi ne oil pres­
s u re is too low . A dr iver message appears as we ll to explain
t h e ma lfun ction in mo re detail. The driver wa rning goes out
a fte r about 5 seco nds, but it can be brought up at any tim e by
press ing t he
[SET] but ton aga in .
Switch off engine ! Oil pressure too low
- Sto p the veh icle .
Controls and equip ­
ment Safety first
Driver information display
- Tu rn the engine off .
- Check t he eng ine oi l level=>
page 279 .
-Contact your authorized Aud i dea ler if necessa ry.
Engine oil level too low
If the eng ine oil leve l is too low, add e ngine oil=> page 2 79.
Engine oil level correct
If the symbo l~ flashes even though the engi ne oil level is cor rect,
please seek professional assistance. Do not continue driv ing. Do not
leave t he eng ine runn ing
idle, either .
[I) Tips
• The engine oil pres sure symbol ~ is not an indi cator for a low
engine oil level. Do not rely on it . Instead , check the oil level in your
engine at regular intervals , preferably each time you refuel, and
always before going on a long trip.
• The yellow oil level warning indication.,.... requires oil refill or
workshop service without delay. Do not wait until the red oil pres­
s ure warning ~ starts to flash before you re spond to the low oil
level warning . By then, your engine may already have suffered
serious damage. •
Fill engine oil now~
~-Plea se replenish oil now
If the ~ .. symbo l lights up, then t he oil has to be replen is hed right
now =>
page 279. •
Vehicle care Technical data

Driver information display
Steering malfunction @-
If there is a malfunction in the electronic steering column
lock, the steering cannot be unlocked.
If the @- symbol in the display blinks, there is a malfunction
in the electronic steering column lock. A driver message
appears as well to explain the malfunction in more detail.
The driver warning goes out after about 5 seconds, but it can
be brought up at any time by pressing the
[SET] button
again.
Stop the vehicle and turn off the engine. Steering
defective
- Obtain professional assistance .
- Do
not tow your vehicle.
& WARNING
Your vehicle must not be towed in the event of a malfunction in
the electronic steering column lock because it cannot be steered
due to the locked steering. If it is towed with the steering locked,
there i s the ri sk of an accident.
W Tips
The symbo l's appearance might be different in some models.•
Ignition Lock malfunction©-
A malfunction in the ignition lock must be repaired imme ­
diately.
If the ©- symbol in the display blinks, there is a malfunction
in the electronic ignit ion lock . A driver message appears as
well to explain the malfunct ion in more detail. The driver warning goes out after about 5 seconds, but
it can be
brought up at any time by pressing the
!SET] button again
Defective ignition switch Get it serviced!
-Do not turn the engine off .
- Drive immed iately to an authorized service facility to have
the malfunction corrected.
If there is a malfunction in the electronic ignition lock, the ignition
cannot be turned off . Drive immediately to an authorized serv ice
facility to have the cause of the ma lfunction corrected.
On vehicles w ith convenience key*, the engine sho uld not be switched
off using the start/stop but ton because the engine cannot be started
again after the ignit ion has been switched off.
[ i ] Tips
Th e symbo l's appearance might be d ifferent in some models. •
Yellow symbols
Ayellow symbol means WARNING.
-en
9 a: gi
Fig. 26 Display:
Yellow warning
symbol
Yellow symbols indicate a priority 2 malfunction -Warning!

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