warning AUDI A5 COUPE 2012 Repair Manual

92 On the road
On the road
Steering
Manually adjustable steering wheel
The height and reach of the steering wheel
can be adjusted .
Fig. 104 Lever under the s tee ring colum n
First, adjust the driver's seat correctly .
• Pull the lever
o fig . 104 -Arrow -o &_.
-
" a, a,
• Move the steering whee l to the desired po­
s it ion.
• Push the lever aga inst the steering column
u ntil it locks.
There must be at least 10 inches (25 cm) be­ tween your chest and the center of the steer­
ing wheel. If you cannot si t more than 10 in­
ches (25 cm) from the steering whee l, see if
adaptive equipment is available to help you
reach the pedals and increase the distance
from the steering whee l.
F or detai led information on how to adjust the
driver's seat, see
o page 63.
The steering wheel can be adjusted even when
the ign ition is turned off. For vehicles wi th
seat memory, the individual positions for the
steering wheel can be stored a long with the
seat position .
A WARNING
Improper use of steering wheel adjust­
ment and improper seating position can
cause serious personal injury .
-Adjust the steer ing whee l co lumn on ly
when the vehicle is not moving to pre­
vent loss of veh icle control.
-
- Adjust the driver's seat or steering whee l
so that there is a m inimum of 10 inches
(25 cm) between your chest and the
steer ing whee l
r::;,page 145, fig . 162 . If
you cannot maintain th is m inimum dis­
tance, the a irbag system cannot protect
you properly.
- If physical limitations prevent you from
sitting 10 inches (25 cm) or more from
the steering wheel, check with your au­
thorized Audi dealer to see if adaptive equ ipment is ava ilable .
- If the steer ing whee l is aligned with your
face, the supplementa l dr iver's a irbag
cannot provide as much protection in an
accident. Always make sure that the
steer ing whee l is aligned with your
chest .
- Always hold the steering wheel with your
hands at the 9 o'clock and 3 o'clock posi­
tions to reduce the risk of persona l injury
if the driver's airbag deploys.
- Never hold the steering wheel at the 12 o'clock position or with your hands inside
the steeri ng wheel rim or on the steering
wheel hub. Holding the steer ing wheel
the wrong way can cause serious injuries
to the hands, arms and head if the driv­
er's airbag deploys.
Ignition lock and ignition switch
Starting engine with the key
The igni tion is switched on and the engine
started with the ignition key .
Fig. 105 Ig nitio n key

~ Insert the key into the ignition lock .
~ Manual transmission: Fully depress the
clutch peda l and move the sh ift lever to the
neutral position.
~ Automa tic transmission*: Step on the brake
pedal and move the selector lever to the
P
or N position .
~ Press the key~ fig. 105 -the eng ine will
sta rt.
By pressing the key
without stepp ing on the
clutch or the brake, the ig nition is switched o n
and off. With the ignit io n on, t he steer ing
wheel is un locked.
You can only remove the key w ith the ignition
sw itched off . T o do this, you have to p ress on
the key aga in. Wi th an a utomat ic transm is­
sion, the se lecto r lever must be in the
P posi­
tion .
When starting the engine, ma jor e lectr ica l
l oads are switched off tempo ra rily .
After start ing a cold engine, there may be a
brief period of increased no ise because the oi l
p ressu re must fi rst build up in the hydraulic
va lve adjusters. This is normal and not a cause
fo r concern.
If the engine should not start immediately,
the starting p rocess is automatically stopped
after a sho rt time . Repeat sta rting p rocedu re.
Driver me ssage in the in strument cluster
display
Press brake pedal to start engine
This message appea rs if you do not step on
the brake pedal to sta rt the eng ine on a veh i­
cle with an automat ic transm iss ion.
Press clutch pedal to start engine
This message appears if you do not step on
the clutch peda l to start the engine on a ve hi­
cle with a manua l transm ission .
Engage Nor P to start engine
T his message appears when attempting to
start the engine if the se lector lever for the
automatic transmission is not in the
P or N
On th e ro ad 93
posit ion . The engine can only be started wi th
the se lecto r in these positions .
Shift to P, otherwise vehicle can roll away.
Doors do not lock if lever is not in P .
This message appears for safety reasons
along with a warn ing signal.
It a ppears if the
se lector lever for the automatic transmission
is not in the
P position after the ignition is
switched off . Move the selector lever to the
P
pos ition, ot herwise the vehicle is not secured
against ro lling away . You also cannot lock the
vehicle us ing the locking b utton o n the doo r
hand le o r us ing the remo te key .
.8, WARNING
-Always take the key w ith you whe never
you leave your ve hicle. O therw ise, the
en gine cou ld be sta rted o r ele ct rical
eq uip me nt s uch as the power windows
could be operated. This can lead to seri­
ous injury.
- Never leave children or persons re quiring
assistance unattended in the ve hicle. The
doors can be locked using the remote
transmitter, preventing people from es­ caping from t he veh icle on t heir own in
the ev ent of an e merge ncy. D epe nding
on t he time of yea r, peop le inside the ve­
hicle can be expo sed to very high o r very
low tempe ra tur es.
- Never re mo ve the ign ition key from the
ig nition lo ok while the veh icle i s m oving .
O the rwise, the s teering lock could su d­
d enly en gage and yo u wo uld not be a ble
to steer the vehicle .
@ Note
- In th e even t of a m alf un ct io n in the ele c­
t ronic ignit io n loc k a symbol in the in­
strument cl uste r flashes with the mes ­
sage
Ignition lock defective .
-Avo id hi gh engine spee ds, fas t a ccelera ­
tion or heavy engine loa ds while the en­
gine is still cold . This could damage the
eng ine.

94 On the road
@ For the sake of the environment
To avoid unnecessary engine wear and to reduce exhaust emissions, do not let your
veh icle stand and warm up. Be ready to
drive off immediately after start ing your
veh icle. Maintain moderate speed until the
engine is comp letely warm. Remember,
the engine performs best at operating
temperature.
@ Tips
- If the key cannot be removed from the
ignition lock, you have to pull the me­
chanical key out of the master key in or­
der to be ab le to loc k the vehicle The ve­
hicle can be locked with the mechanica l
key
~page 39.
-If you open the driver's door wi th the ig­
nit ion switched on, a buzzer sounds and
the message
Ignition i s on appears in
the instr ument cluster disp lay . Switch
the ignition off.
Stopping the engine
> Bring the vehicle to a full stop.
> Automatic transmission*: Move the selec ­
tor lever to the
P or N position .
> Press on the ignition key. The engine is
turned off.
Emergency off
If it is necessary in unusual circumstances, the
engine can be switched off wh ile the vehicle is
mov ing . The engine will be switched off if you
p ress on the key for an extended period .
_& WARNING
-Never turn off the eng ine unti l the vehi­
cle has come to a complete stop.
- T he brake booster and se rvotronic only
work when the engine is running. With
the ignition turned off, you have to apply
more force when steering or braking .
Since you cannot steer and stop norma l­
ly, this can lead to accidents and serious
injuries. -
The radiator fan can continue to run for
up to 10 minutes even after you have
turned off the engine and removed the
ignit ion key. The radiator fan can also
turn on again if the engine coolant heats
up because of intense sunlight or heat
bu ild-up in the engine compa rtment.
(D Note
Do not stop the engine immediately after
hard or extended driving . Keep the engine
runn ing for approximate ly two minutes to
prevent excess ive heat bu ild-up .
Starting and stopping
the engine with
convenience key
St t· th ng ·n ith the
button
Applies to vehicles: wit h co nvenience key
This button switches on the ignition and
starts the engine.
Fig. 106 Conven ience key: STAR T ENGINE STOP button
> Manual transmission: Fully depress the
clutch pedal and move the shift lever to the
neutral posit ion.
> Automatic transmission*: Step on the brake
pedal and move the selector leve r to
P or N
~ .&. -
> Pr ess on the !START ENGINE STOPI b utton
~ fig. 106 -the engine will start.
By pressing the
! START ENGINE STOPI button
without depressing the clut ch or the brake
peal, the ignition is switched on and switched
off by pressing it again.
IJi,,

If the engine does not start immediately, stop
trying after 10 seconds and then try to restart
the eng ine about 30 seconds later .
After a cold engine is star ted, there may be a
brief period of increased noise because oil
pressure must first bui ld up in the hydraulic
va lve adjusters. This is normal and not a cause
for concern.
Driv er m essa ge in th e in strument clu ster
disp lay
No ke y ident ified
This message appears when the
I S TAR T ENGINE STOP ! button is pressed if
there is no master key inside the vehicle or if
the system does no t recogni ze it. For exam­
ple, the master key cannot be recognized if it
is covered by an object (e .g . aluminum brief
case) which
screens the radio signal. Electron­
i c devices such as ce ll phones can also inter­
fere wi th the radio signal.
Press brake ped al to start engine
This message appears if you press the
I STAR T ENGIN E ST OP ! button to start the en­
g ine and do not depress the b rake pedal. The
engine can on ly be sta rted if the brake pedal
is depressed.
Press clutch ped al to start engin e
This message appears with a manual trans ­
miss ion when you press the
I S TAR T ENGIN E ST OP ! button to start the en­
g ine and do not depress the clu tch pedal. The
engine can on ly be started when the clutch
pedal is dep ressed .
Engage Nor P to st art engine
This message appears when attempting to
start the engine if the selector lever fo r the
automatic t ransmission is not in the
P or N
position . Th e engine can on ly be started w ith
the selector in these posit ions.
!II Key not in vehicle
This message appears along with the II! sym­
bo l if t he maste r key is removed from the ve­
h icle w ith the engine r unning. It is intended
On th e ro ad 95
to remind you (e .g. when changing dr ive rs)
not to continue the journey without the mas­
ter key.
If t he mas ter key is no longer in the ve hicle,
you cannot switch on the ignition after stop ­
ping the engine and you also cannot start the
engine aga in. Moreover, you cannot lock the
vehicle from the outside with the key.
Shift to P, oth erwise vehicle can roll away.
D oors do not lock if le ver i s not in P .
This message app ears for safety reasons
a long with a warn ing signal. It appears if the
selector leve r for the automa tic transmission
is not in the
P position when sw itching off the
ignition with the
I STAR T ENGIN E ST OP ! but­
ton . Move the se lector lever to the
P position,
othe rwise the veh icle is not se cured against
ro lling away. You also cannot lock the veh icle
u sing the lock ing b utton on the door hand le
or using the remote key.
Convenience key defective ! Use ignition
lock
T his message appears if the vehicle has to be
started not w ith the
I S T AR T ENGINE ST OPI
button but with the ig nition key.
A WARNING
- Never a llow the engine to run in confined
spaces - danger of asphyx iation.
- Never turn off t he engine until the vehi­
cle has come to a complete stop.
- The brake booster and servotron ic only
work when the engine is runn ing . With
the ignition turned off, you have to apply
more force when steering or brak ing.
Since you can not steer and stop normal ­
ly, th is can lead to acc idents and serious
in ju ries .
(D Note
-Avo id h igh engine rpm, full thrott le and
heavy engine loads until the eng ine has
reached operating temperature - other-
w ise you risk engine damag e.
- T he engine cannot be started by pushing
o r towing the vehicle.
Ill-

96 On the road
-If the engine has been under heavy load
for an extended period, heat builds up in
the engine compartment after the en­
gine is switched off -there is a risk of
damaging the engine. Allow the engine
to run at idle for about 2 m inutes befo re
switching it off .
@ Tips
If you open the driver's door with the igni­
tion switched on, a buzzer sounds and the
message
Ignition i s on appears in the in­
strument cluster display . Switch the igni­
tion off.
Switching engine off with the button
Applies to vehicles: w it h conve nience key
.,. Bring your vehicle to a complete stop.
.,. Automatic transmission* : Move the selector
lever to the
P or N pos ition.
> Pre ss the I STAR T ENGINE STOP I button
c::>page 94, fig. 106 .
Emerg enc y OFF function
If necessary, the engine can be switched off
with the selector lever in the
R , D or S* posi­
tions. To do so, step on the brake pedal and press and hold the
I START ENGINE S T OP I but­
ton (veh icle speed must be less than 6 mph/
10 km/h.
& WARNING
- Never turn off the eng ine unti l the vehi­
cle has come to a comple te stop.
- The brake booste r and se rvotronic only
work when t he engine
is running. With
the ignition turned off, yo u have to apply
more force when steering or braki ng .
Since you cannot steer and stop norma l­
ly, this can lead to accidents and serious
injuries.
- For safety reasons, you should always
park your vehicle with the se lector lever
in P. Otherwise, the veh icle could inad­
vertently roll away. -
After the engine has been switched off,
the radiator fan can cont inue to run for
up to 10 minutes -even with the ignition
switched off. It can also sw itch on again
after some t ime if the coolant tempera­
ture rises as the result of a heat bu ildup
or if the engine is hot and the engine
compartment is additionally heated by
the s un's rays .
Q;) Note
If the engine has been under heavy load
fo r an extended period, heat bu ilds up in
the engine compartment after the engine i s switched off -there is a r isk of damag ing
the engine. Allow the engine to run at id le
for abo ut 2 minutes before switching it
off .
Electromechanical
parking brake
Operation
The ele ctromechanical parking brake replaces
the hand brake.
Fig . 107 Center console: Parking b rake
> Pull on the switch @ c::> fig. 107 to apply the
parking brake. The indicator light in the
sw itch illuminates .
.,. Step on the brake pedal or the accelerator
pedal and press the switch at the same t ime
to re lease the park ing brake. The indicator
light in the sw itch goes out .
Your vehicle is equipped with an electrome­ chanical parking brake . The parking brake is
designed to p revent the veh icle from rolling
u nintentionally and replaces the hand b rake. .,..

In addition to the norma l functions of a tradi­
tional hand brake, the electromechanica l
parking brake provides various convenience
and safety functions.
When start ing f rom re st
- T he integ ral starting assist helps you when
driving by automatically releasing the park ­
ing brake ¢
page 98, Starting from rest.
-When starting on inclines, the starting as­
sist prevents the vehicle from unintentional­
l y rolling back. The braking force of the
parking brake is not released until sufficient
driv ing force has been built up at the
wheels .
Emergenc y bra ke function
An emergency brake ensures that the vehicle
can be slowed down even if the
normal brakes
fa il¢
page 98, Emergency braking .
Indicator light s
-If the parking brake is closed w ith the igni­
tion
s witch ed on the . (USA models) /
• (Canada models) indicator lights come
on in the instrument cluster and the switch.
-If the parking brake is closed with the igni­
tion
s witched off the . (USA models) I
• (Canada models) indicator lights come
on in the instrument cluster and the switch
for about 20 seconds.
A WARNING
If a gear or a drive range (automat ic trans­
m ission) is engaged with the vehicle sta­
tionary and the engine run ning, you must
in no inst ance accelerate o r release the
cl utch carelessly. Otherwise the veh icle
wi ll start to move immediately -risk of an
accident.
CJ) Note
If the . symbol in the disp lay o r the
- (USA
models) ;II (Canada mode ls)
ind icator light in the instr ument cluster
flashes, there is a ma lfunction in the brake
system. By pressing the
! SETI button, you
can br ing up a driver message which ex-
On th e ro ad 97
plains the ma lf u nction in more detail. If
the driver message
P ark ing brake! ap­
pears, the re is an operating malfunct ion in
the parking brake which you should have
repaired immed iate ly by an authorized Au­
di dealer or other qualified workshop
¢page 30.
(D Tips
-You can apply the parking brake at any
time -even with the ign ition turned off.
The ignit ion must be turned on in order
to release the par king b rake .
- Occasional noises when the parking
brake is applied and released are normal
and are not a cause fo r conce rn.
- When the vehicle is parked, the park ing
brake goes throug h a self-test cycle at
regu lar inte rva ls. Any associated noises
are normal.
Parking
Various rules apply to prevent the parked ve­
hicle from rolling away accidentally.
Parking
"' Stop the vehicle with t he foot brake .
"' Pull the switch to apply the parking brake.
"' Automatic transmission*: Move the selector
lever to
P .
"' Tur n the engine off¢_&.
"' Ma nual transmiss ion: Shift into 1s t gear.
In addition on inclines and grades
"' Turn the steering wheel so that your vehicle
w ill roll aga inst the curb in case it shou ld
start to move.
A WARNING
- When you leave you r vehicle -even i f on­
ly briefly -always remove t he ignition
key. This app lies pa rticularly when chil­
dren remain in the vehicle. Otherwise t he
children could start the eng ine, release
the park ing brake or operate electrical
equ ipme nt (e.g. power windows). There
is the risk of an acc ident.

98 On the road
-When the vehicle is locked, no one - par­
t icu larly not ch ildren should remain in
the vehicle. Locked doors make it more
difficult for emergency workers to get in­
to the vehicle - putt ing lives at risk.
Starting from rest
The starting assist function ensures that the
parking brake is released automatically upon
starting .
Stopping and applying parking brake
.. Pu ll the switch to apply the parking brake.
Starting and automatically releasing the
parking brake
.. When you start to drive as usua l, the park­
ing brake is automatically re leased and your
vehicle begins to move.
When stopping at a traffic signal or stopping
in city traffic on vehicles with an automatic
transmission, the park ing brake can be ap­
plied. The veh icle does not have to be held
with the footbrake. The park ing brake elimi­
nates the tendency to creep with a drive range
engaged. As soon as you dr ive off as usual,
the park ing brake is released automatically
and the veh icle sta rts to move.
Starting on slopes
When starting on inclines, the start ing ass ist
prevents the vehicle from unintentionally roll­
i ng back . The braking force of the parking
brake is not released until sufficient dr iving
fo rce has been built up at the whee ls.
(D Tips
For safety reasons, the park ing brake is re­
leased automatically only when the dr iv­
er 's safety belt is engaged in the buck le.
Starting off with a trailer
To prevent rolling back unintentionally on an
incline, do the following:
• Keep the switch pulled and depress the ac­
celerator . The parking brake stays applied
and prevents the vehicle from roll ing back ­
ward .
• You can re lease the switch once you a re sure
that you are developing enough driving
force at the wheels by depressing the accel­
erator.
Depending on the weight of the rig (vehicle
and t railer) and the severity of the incline, yo u
may roll backwa rds as you start . You can pre­
vent rolling backwards by holding the parking
brake switch pulled out and accelerating -just
as you would when starting on a hill with a
convent ional hand brake.
Emergency braking
In the event that the conventional brake sys­
tem fails or locks.
.. In an emergency, pull the switch and con­
tinue to pull it to slow your vehicle down
w ith the park ing brake.
• As soon as you release the switch or acceler-
ate, the brak ing process stops.
If you pull the switch and hold it above a
speed of about 5 mph (8 km/h), the emergen­ cy brak ing funct ion is initiated . The vehicle is
braked at all four wheels by activating the hy­
draulic brake system . The brake performance
i s sim ilar to making an emergency stop~& .
In order not to act ivate the emergency brak­
i ng by mistake, an audib le warning tone (buz­
zer) sounds when the switch is pulled. As soon
as the switch is re leased, or the accelerator
pedal is depressed, emergency braking stops.
A WARNING
Emergency braking should only be used in
an emergency, when the norma l foot brake
has failed or the brake pedal is obstructed. .,..

Using the parking brake to perform emer­
gency braking will slow your vehicle down
as if you had made a full brake application.
The laws of physics cannot be suspended
even w ith ESP and its associated compo­
nents (ABS, ASR, EDS). In corne rs and
when road or weather conditions a re bad,
a full brak e application can cause the vehi­
cle to skid or the rear end to break away -
r isking an accident.
Driver messages in the instrument
cluster
Caution: Vehicle parked too steep
This message appears when the park ing brake
is applied on an incline that exceeds about
30%.
In this case the braking power of the parking
brake may
not be adequate to prevent the ve­
hicle from rolling unintentionally .
Press brake pedal to release parking brake
This driver message appears when the switch
to release the parking brake was pressed. The
parking brake can only be released if you step
on the brake pedal and at the same time press
the switch or you automatically release the
parking brake with the start ing ass ist
<=> page 98.
(p] Parking brake m alfunction!
This driver message appears together with
the yellow
IIJ symbo l when there is a parking
brake malfunction.
On the road 99
Cruise control
Switching on
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph (30 km/h) .
Fig. 108 Contro l l ever w ith push-b utton
Fig. 109 D isp lay : Selected speed
.. Pull the lever to position @<=> fig. 108 to
sw itch the system on.
.. Drive at the speed to be controlled.
.. Press button @to set that speed.
a,
~ 0 er a, a,
The stored speed and the green symbol
[ijj(Q~i~ (US model) /. (Canadian model) are
shown in the display<=> fig. 109. The display
may vary, depending on the type of display in
your vehicle. The ind icator light
mJJlm (US model)/ . (Canad ian model) will
also light up in the instrument cluster .
The speed is kept constant by modifying en­
gine power or through an active brake inter­
vention.
A WARNING
- Always pay attention to the traffic
around you when the cruise control is in
operation. You are always responsible for ..,.

A WARNING ,~
You should only resume the saved speed if
it is not too h igh for existing traffic condi ­
tions . Otherw ise you risk an accident.
On the road 101

102 Adapti ve crui se control
Adaptive cruise control
Speed and distance
control system
Description
Applies to vehicles: with Audi adaptive cruise co ntrol
The adaptive cruise control driver assistance
program is a combined speed and distance
control system.
F ig. 110 Front bumper: Positio n of radar sensor
Any speed between about 20 mph (30 km/h)
and about 95 mph (150 km/h) can be set and
held with the adaptive cruise control. The sys­
tem also regulates a pre -set distance from the
vehicle ahead within the limits of the system described.
Driving can be more relaxed, particularly on
long trips on interstates or on other highways
that a re generally straight .
H ow do es it work?
You can operate the adaptive cruise contro l
using the lever on the steering wheel column
c::> page 104, How is the speed stored? and
c::> page 106, How is the distance (time inter ­
val) set? .
Driver inform ation
Important information is brought up in the
speedometer and in the instrument cluster
d isplay as the vehicle is being driven
c:::, page 107, Driver information .
What is imp orta nt fo r you to kn ow
The adaptive cruise control is set with system­
specified limits, that is, as a driver, you will have to adjust the speed and distance to the vehicle ahead in some instances
c:::,
page 111,
Driver intervention prompt
and c::, page 112,
System limitations.
A WARNING
--
Improper use of the adaptive cruise con­
trol can cause collisions, other accidents
and serious personal injury.
- Never drive at speeds that are too high
for traffic, road and weather conditions.
- Never follow the vehicle in front so close­ ly that you cannot stop your veh icle safe­
ly . The adaptive cruise control cannot
brake the vehicle safely when you follow
another vehicle too closely. Always re­
member that the adaptive cruise control
has a braking powe r that is only about
25% of the veh icle's maximum braking
abi lity, the automatic braking function
cannot bring the vehicle to a stop .
- Never use adaptive cruise control on
roads where you cannot drive safely at a
steady speed, including city, stop-and-go
or heavy traffic, on winding roads or
when road cond it ions are poor (for exam­
p le, on ice, gravel, in fog, heavy rain or
on wet roads that increase the risk of hy­
d rop laning) .
- The radar sensor 's
vision can be reduced
by rain, snow and heavy spray. This can
resu lt in veh icles dr iving ahead be ing in­
adequately detected or, in some circum­
stances, not detected at a ll.
If necessary,
t ake action yourself!
- Always turn off adap tive c ruise control
when en ter ing turn la nes, highway exit
lanes and construction zones or similar
situations beca use the vehicle will a uto­
mat ically acce le rate to the stored speed.
- Never rest your foot on the accelerator pedal, especially when t he adaptive
cruise contro l is being used because do­
ing so will override the braking function
and prevent the brakes from being ap­ plied by the system when it detects a sit­
uation when the brakes must be applied.
- Always remember that the adaptive
cru ise contro l has limits -it does not