2013 AUDI A5 CABRIOLET check engine light

20 Instrum ent s a nd w arn in g/i ndic ato r light s
system is not working properly. The vehi­
cle can then be stopped only with the
standard brakes (without ABS). You will not have the protection ABS provides .
Contact your authorized Aud i dealer as
soon as poss ible.
- USA models: If the
11111 warning light
and the
m!S warn ing light come on to­
gether, the rear wheels could lock up
first under hard braking. Rear wheel lock­ up can cause loss of vehicle control and
an acc ident. Have your vehicle repaired
immediately by your authorized Audi
dealer or a qualified workshop . Drive
slowly and avoid sudden, hard brake ap­
plications.
- Canada models: If the brake warn ing
light . and the ABS warning light
tiJ
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 acc ident. Have your vehi­
cl e repaired immediately by you r author­
ized Audi dea ler or a qua lified workshop.
Drive slowly and avo id sudden, hard
brake applications.
~ I !f Safety systems
The fl (USA models) ;fll (Canada models) in­
d icator light monitors the safety systems (e.g .
a irbags, pretensioners) and ill uminates for a
few seconds each time you switch the ignition
on .
If the
fl (USA models)/ E,I (Canada mode ls)
indicator light does not go out, or if it illumi­
nates wh ile you are driv ing, or if it starts to
blink, then there is a ma lfunction somewhere
in the system . If the light does not illum inate
when you switch the ignition on, this also
means the re is a ma lfunction.
_&. WARNING
If you have a malfunc tion in the safety sys­
tems, contact your author ized Audi dealer
l ) - : USA mod els only
immediately . Otherwise the safety sys­
tems may not work properly in an acc i­
dent.
(0) Worn brake pads
IIJ Brak e pad s!
lfthe warning light illuminates, immediate ly
contact your authorized Audi dealer or qua li­
fied workshop to have all brake pads inspect­ ed. On USA models the warn ing light
IIJ
comes on together w ith the warning light
11111 . Both sets of brake pads on an axle
must a lways be replaced at the same time .
_&. WARNING
Driving w ith bad b rakes can cause a colli­
sion and ser ious perso nal in jury.
- If the warn ing light rlJ and the warn ing
light
111111 ) with the message Brak e
pads!
comes on in the inst rument cluste r
disp lay, immediately contact your au­
thorized Audi dealer or qualified work­
shop to have all brake pads checked or replaced if necessary.
EPC Electronic power control
This warning/indicator light monitors the
electronic power control.
T he ~ warning/indicator light (Elect ronic
Power Control) illuminates when you sw itch
t h e ignit ion on as a function check .
(D Tips
If this warning/ indicator ligh t illuminates
while yo u are driving, then there is a mal ­
funct ion in the engine electronics . Have
the malfunct ion corrected as soon as pos­
s ible by your authorized Audi dealer or
qualified repa ir facility.
-

Instruments and warning/indicator lights 21
o Malfunction Indicator Lamp (MIL)
The Malfunction Ind icator Lamp (M IL) is part
of the On-Board Diagnostic (OBD II) system.
The symbol
¢'4 lights up when the ignition is
switched on and wi ll turn off after the engine
has started and has sett led at a constant idle
speed. This ind icates that the MIL is working
properly .
The warning light illuminates when there is a
malfunction in the engine e lectronic system .
Contact your author ized Audi dealer and have
the ma lfunction corrected .
An improperly closed fue l fi ller cap may also
cause the MIL light to illuminate ¢
page 210.
For more informat ion ¢ page 29.
!?) Engine speed limitation
Applies to vehicles: wit h en gin e speed l im it at ion
(II Do not exceed max. engine speed of
XXXX rpm
The Ill symbo l illuminates when there is an
engine control malfunction . Th e~ indicator
light in the instrument cluster also illumi­
nates. The engine speed is limited to the
speed displayed in the driver information sys­
tem. Keep in mind that the eng ine speed will
not exceed the value displayed in the driver in­
formation system, for example when down­
shifting.
Drive to your authorized Aud i dea ler immedi­
ately to have the malfunction corrected.
~ . Engine oil level
II Add oil, max XXXX l. You may cont. driv.
When the symbo l II and driver message ap­
pear, add the amount of o il appearing i n the
d isplay at the next opportunity¢
page 217.
Ill Oil level! Sensor defective
If the symbol illuminates, contact your au­
thorized Audi dealer and have the o il sensor inspected.
Until you have this done, check the
oi l level each time you refue l just to be on the
safe sid e¢
page 217 .
Bu Tank system
flm Please refuel
If the indicator light turns on for the first
time and the message appears, there are
about 2.1 -2.4 gallons (7 -9 liters) of fuel left
in the tank . T ime to refuel ¢
page 209.
Ii] Fuel tank system malfunction! Contact
dealer
If the indicator light turns on and this mes­
sage appears, there is a malfunction in the
tank system.
Drive to your authorized Audi dealer immed i­
ate ly to have the malfunction corrected.
(-.) .>Lease refill washer fluid
If the symbol illuminates, add w indshie ld
washe r fluid to the washer system and also to
the headlight washer system * ¢
page 226.
~ Windshield wipers
£!I Windshield wiper defective
The re is a malfunction with the windshie ld
wipe rs.
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected .
~/ }0 10 $ Defective light bulb warning
If the
l':;:'1 indicator light turns on, a bulb has
failed. The message indicates the location of
the bu lb.
- If the
II indicato r light also turns on, then
a fog light has failed. The position of the in­
dicator light corresponds with the location
on the vehicle .
- If the
[tD indicator light also turns on, then
a rear fog* light has failed. The position of ..,_

24 Driver information d isplay
Driver information
display
Introduction
The Driver information display inside the in ­
strument cluster provides you, the driver ,
with important information.
Fig. 7 Ins trum en t cl uster : ce nter display
Fig. 8 W iper lev er: con trols fo r th e menu disp lay
Center display
W ith the ignition on, the display in the Dr iver
I nformation System shows the following in­
formation :
- CD* inserted or Radio* station set
- Outside temperature* : At temperatures be-
low 41 °F (+5 °C), a snowflake symbol ap­
pears in front of the temperature display
c::> .&_.
-Warning if one of the doors, front lid or en-
gine compartment lid is not closed .
Additional functions
You can open the following functions in the
Driver Information System display by pressing
the
! RESET I button c::> fig. 8 one or more times:
Digital speedometer*
Tire pressure monitoring *
~page245
Trip computer
Efficiency program*
Service interval display
c::>page25
c::> page 27
c::> page 28
--·-
Gearshift selector positions
Automatic transmission
Adaptive cruise control*
Auto Check Control
<::>page 82
Some functions and vehicle components are
scanned for their operating status when you
switch the ignition on and whi le you are driv­
ing. Malfunctions or required service proce­
dures are signaled audibly and indicated by
red and yellow illuminated symbols and re­
minders in the d isplay.
A WARNING
--- Never rely exclusively on the outside
temperature display to determine if a
road surface is icy or not. Keep in mind
that road surfaces, especially br idges
and overpasses, could be ice covered and
slippery even at an outside temperature
above 41 °F (+5 °C).
- Always remember, even if the "snow­
flake" symbol (ice warning) does not ap­
pear in the disp lay, black ice cou ld be on
the road.
- Always reduce your speed and drive with
specia l care in cold weather cond itions
when the chance of encountering icy
road surfaces increases.
¢j) Tips
If the vehicle is stationary, or if you are
driving at a very low speed, the tempera­
ture shown in the display might be s light ly
higher than the actual outs ide tempera­
ture. This i.s caused by the heat being radi­
ated from the engine .

keys. Unguarded access to the keys pro­
vides children the opportunity to start
the engine and/or activate veh icle sys­
tems such as the power windows etc. Un­ supervised operation of any vehicle sys­
tem by ch ildren can result in serious in­
jury.
- Do not remove the key from the ignition
lock until the vehicle has come to a com­
plete stop. Otherw ise the steering col­
umn lock cou ld suddenly engage -caus­
ing the risk of an accident.
(D Tips
- The operation of the remote contro l key
can be temporarily disrupted by interfer­
ence from transmit ters in the vici nity of
the vehicle working in the same frequen ­
cy range (e .g . a ce ll phone, radio equip­
ment).
- Fo r security reasons, replacement keys
are on ly available from Audi dea lers .
- For Decla rat ion of Compliance to United
States FCC and Industry Canada regula­
tions
~page 272.
Removing the mechanical key
0 ....
9 r
. ~
•
Fi g. 18 Remote master key: remov ing the mechanical
key
.,. Press the release button@r=:>fig. 18.
.,. Pull the mechan ical key ® out of the mas­
ter key.
Using the mechan ical key, you can:
- lock and unlock* the glove compartment on
t h e passenger's sider::;,
page 67.
Op enin g an d clos ing 33
- lock and unlock the vehicle manually
r::;, page 36 if this should not be possible
w ith the master key.
- use the ignition key emergency release
r::;, page 34.
Check light and battery in the master
key
Fig . 1 9 Remote master key: removing the battery hold ­
er
Check li ght in the mast er key
The check light @r=:>
fig. 19 in the master key
provides information about different condi­
tions.
.,. The check light turns on briefly once when a
button is pressed, and during an "inquiry"
by the convenience key system.
.,. If the check light does not come on, the
battery is dead a nd has to be replaced. In
add it ion, when the battery is dead
the m
indicator light appea rs in the instrument
cluste r display as we ll as the message
Please cha nge key batte ry .
Ma ster key battery replacement
.,. Remove the mechanica l key
r::;, page 33 .
.,. Press the release button @ r::;, fig. 19on the
bat tery ho lder and a t the same time pull the
battery ho lder out of the master key in the
direction of the arrow .
.,. Insta ll the new battery CR 2032 with the
" + " sign facing down .
.,. Push the battery holder carefully into the
master key.
.,. Install the mechanical key .

182 Intelligent technology
You can compensate for this slightly reduced
braking power by pushing harder on the brake
pedal. Avoid heavy braking loads d uring the
break-in per iod.
Operating condition s and d riv ing hab it s
The brakes on today 's automob iles are st ill
subject to wear, depending largely on operat ­
ing 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 author­
ized Audi dealer more often than specified in
the
Warra nty & Maint enance booklet . Failure
to have your brake pads inspected can result in red uced b rake pe rformance.
On steep slopes, you should use the brak ing
effect of the engine . Th is way, you prevent un­
necessa ry wear on the brake system. If you
must use yo ur brakes, do not hold the brakes
down continuously . P u mp the brakes at inter ­
va ls.
Operating noise
Noises may occur when braking depending on
the speed, braking fo rce and outside condi­
tions s uch as temperature and humidity .
Effect of w ater and ro ad s alt
In certain situat ions, for example after driving
through water, in heavy ra in, after overn ight
condensat ion or after washing your car, the
b rak ing effect can be reduced by moistu re or
ice on the bra ke roto rs and b rake pads . The
b rakes must be dried fi rst with a few caref ul
b rake app lications .
At higher speeds and with the w indshield w ip­
e rs turned on, the brake pads press agains t
the brake rotors for a short amount of time.
This occurs at regular intervals without the
driver noticing and provides for better brake response time under wet condit ions.
The effectiveness of the brakes can be reduced
when the vehicle is driven on a salt-covered road and the brakes are not used. Likewise,
you clean
off accumulated sa lt coating from brake d
iscs and pads with a few cautio us ap­
plications of the brake
Q ,&. .
Corrosion
The re may be a tendency for dirt to bu ild up
o n the brake pads and corros io n to fo rm on
the d iscs if the car is not driven regu la rly or
only for short trips with litt le use of the
brakes.
If the brakes a re not used frequently, o r if cor­
rosion has formed on the discs, it is advisable
to clean
off the pads and discs by braking
firmly a few times from a moderately high
speed
c> &. .
Faults in the brak e syst em
If you shou ld no tice a sudden increase in
brake pedal trave l, then one of the two brake
ci rcuits may have fai led
c> &. .
Lo w brake fluid lev el
Malfunctions can occu r in the bra ke system if
the b rake fluid level is too low. The brake f lu id
level is monitored electronically.
Brake booster
The brake booster increases the pressure that
yo u generate with the brake peda l. It works
o n ly when the engine is running .¢
&
Brake lining we ar status
Brake lining wear may be checked by visual in­
spect ion of the condition of the brake pads
through the open ings in the wheel. If neces­
sary, the wheel may be removed for th is i n­
spect io n ¢
page 249, Changing a wheel.
_&. WARNING
- New brake pads don't have the bes t stop­
p ing power and m ust be "bro ken-in" dur­
ing the initial 100 to 150 miles (150 to
200 kilometers) of normal city driving.
You can compensate for this by pressing
the brake pedal more firmly. Th is also
applies later when new pads are instal­ led.

Trailer towing Driving with a trailer
General information
Your Audi was designed primarily for passen­
ger transportation .
If you plan to tow a tra iler, p lease remember
that the addit ional load will affect durab ility,
economy and performance .
T railer towing not on ly places more stress on
the vehicle, it also calls for more concentra­
tion from the driver.
F or this reason, a lways fo llow the operating
and driving instructions provided and use
common sense.
Technical requirements
Traile r hitch
Use a weight-carrying hitch conforming to the
gross trailer we ight. The hitch must be suita­
b le for your veh icle and trailer and must be
mounted secure ly on t he veh icle's chassis at a
technically sound location . Use only a t railer
h itch w ith a removab le ball moun t. A lways
check with the tr ailer hitch man ufac tur er to
make sure that you are using the correct
hitch.
Do not use a bumper hitch.
T he hitc h must be installed in such a way that
it does not inte rfe re with the impac t-absorb­
i ng b umper syst em. No modifica tions should
be made to the vehicle exhaus t and b rake sys­
tems . From t ime to time, check that a ll hitch
mo unt ing bolt s remain securely fas tened.
W hen you are not tow ing a trailer, remove the
trai le r hi tch ball moun t. T h is prevents the
hi tch from causing damage sho uld your ve hi­
cle be str uck from be hind
¢ &. .
Trailer brakes
If yo ur tra iler is equ ipped w it h a braking sys­
tem, check to be su re that it conforms to a ll
r eg ulat io ns.
Trailer towin g 191
The trailer hyd ra ulic bra ke system must not be
direct ly connected to the vehicle's hydraulic
brake system
¢ &. .
Safety chains
Alw ays use s afety chains between your ve hicle
and t he tra ile r.
Trailer lights
Tra ile r lights m ust meet all reg ulations . Be
su re to check w ith your authorized Audi dealer
fo r c orrec t w iri ng, sw itches, and relays.
Mirrors
If you a re unable to see the traffic behind you
u sing the regula r outside m irrors, then you
must insta ll ext ended mir ro rs. It is important
t h at you
always have clea r vis io n to the rear .
.8, WARNING
- If a trailer has elec trica l br ake s plea se
no te th at t hese bra kes are not activat ed
by the fa ctory -fit ted control unit -risk of
accident!
- After removing the t railer hi tch, do no t
s to re it in yo ur vehicle . In case of sudden
brak ing, the hitch could fly fo rward and
in ju re you or yo ur passenge rs .
Operating instructions
Maximum traile r we ight
-
A trai ler for your vehicle is limited to a typical
class 1 or class 2 tra iler.
Trailer load distribution
Be sure the lo ad in the traile r is h eld secure ly
i n p lace to p reven t it from shifting fo rward,
backward or sideways.
Never allow a passenger to ride in a trailer
¢ &. in Driving instru ctions on page 19 2.
Engine cooling system
Towing a t railer ma kes t he engine wor k hard ­
er . It is impo rta nt that the cooling system's
perfo rman ce is up to the additional load.
Make sure tha t the coo ling sys tem h as enough
f lu id . .,..
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•

192 Trailer towing
Tire pre ss ure
When towing a trai le r, inflate the t ires of your
vehicle to the co ld tire pressure listed under
"Full load" on the label located on the driver 's
side B-pillar (visible when the door is open).
Inflate trailer tires to trailer and tire manufac ­
turers' specifications.
Light s
The headlight settings should be checked with
the trailer attached before dr iving off. Check
to make sure both vehicle and tra iler lights
are working properly.
Saf ety chains
Be sure tra iler sa fe ty cha ins a re p roperly con­
nected from the trailer to the hitch on the ve ­
hicle. Leave eno ugh slack in the chains to per ­
mit turning corners. When you install safety
cha ins, make sure they w ill not drag on the
road when you are driving.
The chains shou ld cross under the trai ler
tongue to prevent it from dropping in case of
separation from the hitch.
Driving instructions
Driving with a trailer always requires extra
care and consideration.
To obtain the best possible handling o f vehicle
and trai ler, p lease note the following:
.,. Do not tow a loaded tra iler whe n your car it ­
self is no t loaded .
.,. Be especia lly careful when passing other
vehicles .
.,. Observe speed limits .
.,. Do not drive at the maximum permissible
speed.
.,. Always apply brakes early .
.,. Monitor the temperature gauge.
Weigh t di stribution
Towing a loaded trai ler with an empty car re­
sults in a highly unstable distribution of
weight . If this cannot be avo ided, drive at very
low speeds only to avoid the risk of losing
steer ing control. A "ba
lanced' ' rig is easier to operate and con­
trol. This means that the tow vehicle should be loaded to the extent possible and permissi­
ble, while keep ing the trai ler as light as possi­
ble under the c ircumstances. Whenever poss i­
ble, transfer some cargo to the luggage com ­
partment of the tow veh icle while obse rving
tongue load requ irements and vehicle load ing
considerations.
Speed
The higher the speed, the more d iff icu lt it be­
comes for the driver to control the rig. Do not
drive at t he maximum permissible speed. Re­
duce your speed even more if load, weather or
wind conditions are unfavorable -pa rtic ularly
whe n going downhill.
Reduce veh icle speed
immediately if the trail­
er shows the slightest s ign of sway ing.
Do n ot
try to sto p th e swaying by acc elerating .
Observe speed limits. In some areas, speeds
fo r vehicles tow ing tra ile rs a re lower than for
regular veh icles .
Always apply brakes early. When driving downh ill, shift into a lower gear to use the en ­
gine braking effect to slow the vehicle . U se of
the brakes alone can cause them to overheat
and fail.
Coolant tempe rature
The coo lant temperature gauge c> page 10
must be observed carefu lly. If the needle
moves close to the upper end of the scale, re­
duce speed immediately and/or turn off the
air conditioner.
If the coolant temperature warning light •
i n t he i nstrument cluster starts flashing, pull
off the road, stop and let the engine
idle for
abo ut two min utes to prevent he at build-up .
_& WARNING
Anyone not proper ly restra ined in a mov ­
i ng vehicle is a t a much greater risk in an
accident . Never let anyone ride in yo ur car
who is not p roperly wea ring the rest raints
prov ided by Audi.
-

(D Note
- Never use chemical solvents (e.g . lighter
flu id, turpentine), waxes, shoe polish or
s imilar products on Alcantara ® surfaces.
- To avoid damage, have stubborn stains
removed by a commercia l cleaning spe­
cialist.
- Do not use brushes, stiff sponges or sim­
ilarly abrasive cleaning aids.
Safety belts
Only well-maintained safety belts work relia­
bly when needed.
.. Keep belts clean .
.. For cleaning, use a mi ld soap and water sol­
ution . Let be lts dry thoroughly and away
from direct sunlight.
.,. Do not allow inertia reel safety belts to re­
tract before they are completely dry.
.,. Check the condition of your safety belts
reg­
ularly .
Heavily soiled safety belts may not retract
properly .
A WARNING
Damaged safety belts can break in a crash.
- Anything that might damage your safety
belts could mean that you and your pas­
sengers wou ld not be adequately pro­
tected in an acc ident.
- Safety belt performance depends on cor­
rect installation. Never remove belts
from the vehicle to clean them.
- Do not use chemical cleaning agents,
bleach o r dyes. They have corros ive prop­
erties whi ch weaken the webbing.
- When cleaning your safety belts, inspect
them for damage.
If you discover dam­
age, see your a uthorized Audi dea ler.
- Always read and heed all WARN INGS and
other information
Qpage 194.
l) Use o nly the correct cleaning sol utions. Neve r use gas­
oline or d iese l fuel.
Cleaning and protec tion
Engine compartment
Be especially careful when cleaning the en­
gine compartment.
A lw ays switch o ff the ign it ion before cle an ­
i ng the eng ine
c> ,& .
Plenum pan el
Remove leaves from the plenum panel in front
of the windshield under the engine hood. This
prevents the water drain holes from becoming
blocked, and it prevents debris from enter ing
the vehicle interior through the heating and
vent ilat ion ducts.
Co rro sio n protect ion
The engine compartment and transmission
have been corrosion-protected at the factory.
Good anti -corrosion treatment is very impor­
tant, partic ularly in the winter.
If the vehicle
is frequently driven on salt treated roads, the
entire engine compartment and p lenum panel
should be thoroughly cleaned at the end of
winter and retreated to prevent salt damage.
At the same time, the underside of the vehicle
shou ld be washed as well.
If the engine compartment is cleaned at any
time with grease remov ing solutions
1> , or if
you have the engine washed, the anti-corro­
s ion treatment is almost always removed as
well.
It i s therefo re essentia l to have a long­
lasti ng cor rosion pro tect ion reapplied to all
surfaces, seams, joints and components in the
engine compartment .
A WARNING
Be aware: The engine compartment of any
motor vehicle is a potentially hazardous
area.
- Before work ing in the engine compart­
ment, be sure to read the information
c> page 212.
- Before reaching into the front plenum
panel, a lways remove the ignit ion key.
205
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