2015 AUDI A4 ESP

6 About this Owner's Manual
This owner's manua l contains important infor­
mation, tips, suggestions, and warnings for
the use of your veh icle.
Make sure that this owner's manua l is always
located in the vehicle. This is especia lly impor­
tant if you allow other people to drive the ve­
h icle, or if you sell it.
This owner's manua l descr ibes the
equipment
range
specified for this mode l at the editoria l
deadline date. Some of the equipment descri­
bed here will on ly be available at a later date,
or only in specific markets.
Some sections in this owner's manua l do not
apply to a ll vehicles . In that case, the
range of
applicability
is g iven at the beginn ing of the
section, e.g., "Applies to vehicles: with ad­
vanced parking system". In addition, optional
or vehicle -specific equipment is indicated by
a n aster isk
" *" .
Illustrations may be different from those in
your vehicle, and are intended to be viewed as
a basic guide .
You will find a
table of contents at the begin­
n ing of this book, which disp lays all topics de­
scribed in this manual in order of appearance.
You will find an alphabetical
index at the end
of this book .
All
directions , such as "left", "right", "front",
''back", are relative to the direct ion of travel.
* Optional or vehicle-specific equipment
.,.. This section continues on the next page.
~ .&. Cross-reference to a "WARNING!" with­
in a sect ion. For ind ication w ith a page num­
ber, the corresponding "WARNING!" can be
found outside of the section .
A WARNING
Text with this symbol contains important
information on safety and how to reduce
the risk of personal injury or death.
(D Note
Text with this symbo l draws your attention
to potentia l sources of damage to your ve­
hicle.
@) For the sake of the environment
Text with this symbo l contains information
abo ut the environment and how you can
help protect it.
{!) Tips
Text with this symbo l contains specia l tips
and other information about gett ing the
most out of your vehicle and its features.

16 Instrum ent s and w arn ing /indic ato r light s
swerve and increase the risk of sliding .
Drive carefully to the nearest authorized
Audi dealer or other qualified workshop and have the malfunction corrected.
- If the brake warning/indicator light does
not go out after a few seconds and the
park ing brake is released, or lights up
wh ile you are driving, the fluid level in
the brake fluid reservoir is too low.
If you
believe that it is safe to do so, proceed
immediately at low speed to the nearest
au thorized Audi dealer or qualified work ­
shop and have the brake system inspect­
ed.
-Always keep in m ind that afte r several
brake applications, yo u will need greater
pressure on the brake peda l to stop your
vehicle. Do not re ly on stra ined brakes to
respond w ith maximum stopp ing power
in critical situations. You must a llow for
increased brak ing dista nces. The extra
distance used up by fad ing brakes could
lead to an acc ident.
:fil.J{®) Electromechanical park ing b rake
The warning/indicator light monitors the
electromechanical parking brake .
If the indicator light. (USA models)/ .
(Canada models) turns on, the park ing brake
was set .
The warning/indicator light will go out when
the park ing brake is released.
• (USA model s) ;a (Canada model s) Cau­
tion: Vehicle pa rked too steep
If the in dica tor light blinks and the message
appears, there is not eno ugh braking power to
keep the vehicle from ro lling . The brakes have
overheated . The vehicle could ro ll away even
on a small incline.
Pre ss brake pedal to rele ase parking br ake
To release the parking bra ke, press t he b ra ke
pedal and press the button<®> or start driving
with s tart ing ass ist at the same time
¢ page 88.
Plea se relea se parking brake
T o re lease the par king brake manually, p ress
t h e b rake pedal and press the button<®> at
the same time. The parking brake on ly re leas­
es automatically if the driver's safety be lt is
fastened.
Ill Parking brak e!
If the Ill ind icator light turns o n and this
message appears, there is a parking b rake
malfu nction . D rive to your author ized Audi
dealer or qualified workshop immediately to
have the malfunct ion corrected.
.ft Safety belts
This warning/indicator light reminds you to
put on your safety belt.
The . war ning/ indicato r light illum inates
whe n the ignition is switched on to remind
t h e d river and (o n USA models on ly) any front
passenge r to p ut on the s afety be lt. Ad dit ion­
ally, an acoustic warning (gong) will also
sound .
Fo r more In format ion ¢
page 136, Safety
belt warning light.
D Battery
T he . warning/indicator light illuminates
when you switch on the ignition and must go
o ut after the engine has started.
• Alternator fault : Battery is not being
charged
If the indicator l ight turns on and the mes­
sage appears, there is a mal funct ion in the
generator or veh icle electrical system .
D rive to your authori zed A udi dealer or quali­
fied wor kshop immed iate ly. Because the ve hi­
cle b attery is discharg ing, turn
off all unnec­
essa ry e lec trical equipmen t such as the rad io.
Seek professiona l assistance if the battery
charge level is too low.
(•) Low battery : Battery will b e charged
while dri ving ..,.

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Instruments and warning/indicator lights 17
If the indicator light turns on and the mes ­
sage appears, there may be limited starting
abi lity.
If th is message turns
off after a litt le while,
the battery charged enough whi le driving.
If the message does not turn
off, have your
authorized Audi dealer or qua lified workshop
correct the malfunction.
~ Engine oil pressure
The red engine oil pressure warning symbol
requires immediate service or repair. Driving
with a Low-oil-pressure indication is Likely to
inflict severe damage to the engine .
• Turn off engine! Oil pressure too low
If the indicator light turns on and the mes­
sage appears, the oil pressure is too low.
.,. Pull
off the road.
.,. Stop the vehicle .
.,. Turn
off the engine .
.,. Check the engine oil level ¢ page 216 .
.,. If the engine oil level is too low, add engine
oil ¢
page 216 . Make sure that the oil pres­
sure warn ing symbol. appears no longer
in the disp lay before you start driving again.
.,. If the engine oil level is correct and the indi­
cator light st ill turns on, turn the engine
off
and do not continue driving. Seek professio­
nal assistance.
(l) Tips
- The engine oil pressure symbol. is
not an indicator for a low engine oil lev­
el. Do not rely on it. Instead, check the
oil level in your engine at regular inter­
vals, preferably each time you refuel,
and always before going on a long trip.
- The yellow oil level warning indication
II requires oil refill or workshop serv·
ice without delay. Do not wait until the
red oil pressure warning. starts to
flash before you respond to the low oil
level warning
l!I. By then , your engine
may already have suffered serious dam­
age.
~ Engine oil level
• WARNING: Please add oil immediately
If the indicator light and the message appear,
add engine oil immediately¢
page 214.
II Add oil, max XXXX l. You may cont. driv .
When the symbol l!I and driver message ap ­
pear, add the amount of oil appearing in the
display at the next opportunity ¢
page 214.
-L Engine cooling system
A malfunction in the engine cooling system
must be repaired as soon as possible.
• Turn off engine and check coolant level
If the indicator light turns on and the mes­
sage appears, the coolant temperature is too
high or the coolan t leve l is too low .
.,. Pull
off the road .
.,. Stop the vehicle .
.,. Tu rn
off the engine .
... Check coolant level¢
page 218 .
.,. Add coolant if necessary¢ page 219.
.,. Continue driving on ly after the engine cool­
ant warning/indicator light goes out .
.,. Contact your authorized Audi dealer for as-
sistance if necessary.
If the engine coo lant level is correct, then the
radiator fan may be the cause of the malfunc­
tion.
• Coolant temperature! Let engine run
with vehicle stationary
If the indicator light turns on and the mes­
sage appears, let the engine run at id le for a
f ew m inutes to coo l down .
_& WARNING
-If your vehicle should break down for
mechanical or other reasons, park at a
safe distance from moving traffic, turn
off the eng ine and turn on the hazard
warn ing lights
¢page 51, Emergency
flashers.
-

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Instrument s and warnin g/indic ator ligh ts 19
A WARNING ,~ ~
If the ~ (USA models)/ . (Canada
models) brake system indicator light turns
on together with the ABS and ESC indica­
tor lights, the ABS/ESC regulating function
may have failed. Functions that stabilize
t he vehicle are no longer avai lab le. This
cou ld cause the vehicle to swerve and in­
crease the risk of sliding . Drive caref ully to
the nearest a uthorized Audi dea ler and
have the malfunction corrected.
(D Tips
For addit ional information on ESC and
ABS, refer to
c::> page 185 .
ABS/(@!) Anti-lock braking system (ABS)
This warning/indicator light monitors the ABS
and the electronic differential lock (EDL).
The warning/indicator light rII:1 (USA mod ­
els)/ [I] (Ca nada models) w ill come o n for a
few seconds when the ignition is switched on.
The light will go out after an a utomatic chec k
sequence is completed.
There is a malfunction in the ABS when :
- The warning/ indicator lig ht does not illumi ­
na te when you swi tc h t he ignition on.
- T he warning/i ndicator lig ht does not go out
after a few seconds .
- T he warn ing/ind icator lig ht illuminates
wh ile driving.
T he ESC indicator light also illuminates if
there is a malfunction in the ABS . The mes­
sage
Stabilization contro l (ESC) : Fault! See
owner 's manual
also appears in the inst ru­
men t clus ter display and a war ning tone
sounds.
Th e brake sy ste m will still respond even
without th e assi stan ce of the ABS sy ste m .
See y our authoriz ed Audi dealer a s soon a s
po ssibl e to re store full braking performan ce .
For more informat ion regarding the ABS
c::> page 185.
Malfunction in the brake system
If the brake war ning l igh t c::> page 15 and the
ABS wa rning illuminate
together there may be
a malfunct ion in the ABS , and there may a lso
be a malfunction in the brake system itself
c::> A . The AB S will not wo rk and you w ill no ­
tice a change in b raking response and per ­
formance .
In the event of a malfunction in the brake
s y stem
the warning/indicator light~
(USA mode ls)/ . (Can ada models) in the in­
strument cluster flas hes
c::> page 15.
Malfunction in th e electronic diff erential
lock (EDL)
The EDL works together w ith the ABS. The
ABS warning light will come on if there is a malfunction in the EDL system
c::> page 185 .
See your author ized Audi dealer as soon as
poss ible.
A WARNING
- I f the trm (USA mode ls)/ [I] (Canad a
models) warning light does not go ou t,
-
or if it comes on while dr iving, the ABS
system is not wor king p roperly. The vehi­
cle can then be stopped only w it h the
standard brakes (without ABS). You w ill
not have the protect ion ABS prov ides.
Contact your authorized Audi dealer as
soon as possible .
-USA models: If the ~ warning light
a nd the
trm warning light come on to­
gethe r, the rear wheels could lock up
f ir st under hard bra king. R ear wh eel lock­
up can ca use loss of vehicle control and
a n ac cident . H ave yo ur vehicle repaire d
immed iate ly by yo ur authorize d Aud i
dea le r o r qualified works hop. Drive slow­
ly and avo id sudden, hard brake applica­
tions.
- Canada models: If the brake warning
light . and the ABS warning light
[I]
come on together, the rear wheels could
lock up first under hard braking. Rear
wheel lock-up can cause loss of vehicle
con tro l and an accident. Have your

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,...., ..,., ,....,
Instruments and warning/indicator lights 21
The IJI symbol illuminates when there is an
engine control malfunction. The
[3i indicator
light in the instrument cluster also illumi­
nates . The engine speed is limited to the
speed d isplayed in the driver information sys­
tem . Keep in mind that the eng ine speed will
not exceed the value displayed in the drive r in­
formation system , for example when down­
shifting.
Drive to your authorized Aud i dealer immedi ­
ately to have the malfunct ion corrected.
'l=cr .., Engine oil sensor
• Oil level! Sen sor defective
If the symbol illuminates, contact your au­
thor ized Audi dealer and have the o il sensor
i nspected . Until you have th is done, check the
oil level each time you refuel just to be on the
safe side
c::> page 216.
Bil Tank system
mJ 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. Time to refuel
c::> page 209 .
DD Fuel tank system malfunction! Contact
dealer
If the indicator light turns on and th is mes ­
sage appears, there is a malfunction in the
tank system .
Drive to your authori zed Aud i dealer immedi­
ately to have the malfunction corrected.
<:o Windshield washer fluid level
B Please refill washer fluid
If the symbol illumina tes, add windshield
washer fluid to the washer system and also to the headlight washer system *
c::> page 225.
~ Windshield wipers
m Windshield wiper defective
There is a malfunction with the windshie ld
wipers .
Drive to your authorized Audi dealer immed i­
ate ly to have the malfunction corrected .
~/ }D 10$ Defective light bulb warning
If the f:I indicator light turns on, a bulb has
failed. Th e message indicates the location of
the bu lb .
- If the
II indicator 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
IJ indicator light also turns on, then
a rear fog* light has failed . The position of
the indicator light corresponds with the lo­
cation on the vehicle.
T his warning can also occ ur if the light switch
is in an unengaged position between two sym­
bols.
Vehicle lights : System fault!
If the message appears, there is a malfunc­
tion in the headlights or light sw itch.
Drive to your au thorized Audi dealer immedi­
ately to have the malfunction corrected .
A WARNING
-Light bulbs a re p ressurized and could ex­
plode wh ile they are being changed caus­
ing serious personal injury.
- Work with due care when hand ling the
high-voltage section of gas discharge
(xenon) lights*. Failure to do so could re­
sult in death or serious injury .
(D Tips
Have the bu lb replaced or the connection
r epaired by your authorized Audi Service
department .
i,0 Headlight range control
Applies to veh icles : w ith headli ght ra nge control
liJ Headlight range control defective !

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Driver information
display
Introduction
The Driver information display inside the in ­
strument cluster provides you, the driver ,
with important information .
Fig. 7 In strum en t cl ust er: center displa y
Fi g. 8 Wi per lever: con trols fo r the menu display
Cent er d ispla y
With the ignition on, the display in the Dr iver
I nforma tion System shows the fo llowing in­
formation :
- CD* inserted or Radio* station set
- Outs ide temperature* : At temperatures be-
low 41 °F (+S
0 (), 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 function s
You can open the following functions in the
Driver Informat ion System display by pressing
the
! R ES ET I button c::> fig . 8 one or more times:
Digital speedometer *
Tire pressure monitoring*
c::> page 257
Dri ver inform ation di spl ay 23
Trip computer* c::> page24
Effi ciency program* c::> page 26
Service in terval display c::> page 28
Speed war ning c::> page 89
Gearshift selector positions <=> page94
Automatic transmission
Adaptive cr uise control *
c::> page 101
Auto Check C ontrol
Some f unctions and vehicle components are
scanned for their operating sta tus when yo u
switch the ign ition on and wh ile you are driv ­
ing . Malfunctions or required s ervice proce­
dures are signaled audib ly and indicated by
red and yellow illuminated symbols and re­
minders in the display .
A WARNING
-
- Never rely exclusively on the outside
temperature display to determine if a
road surface is icy o r not . Keep in m ind
th at r oad surfaces, espec ia lly br idges
and overpasses, co uld be ice covered and
slippery even at an outside tempe ratu re
above 41 ° F (+S °C).
- Always remember , even if the "snow­
f lake" symbo l (ice warning) does not ap­
pear in the d isp lay, black ice cou ld be on
the road .
- Always reduce your speed and drive with
special care in cold weather conditions
when the chance of encountering icy
road surfaces increases.
{I) Tips
If the vehicle is stationary, or if yo u a re
driving at a very lo w speed, the tempera­
ture shown in the display might be s light ly
higher than the actua l outs ide tempera­
ture. This is caused by the heat be ing radi­
ated from the engine .

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Resetting the service interval display
Your authorized Audi dealer w ill rese t the cor­
responding service schedule after performing
the appropriate service on your vehicle. Yo u
also have the possibility to reset the oil
change schedule after having performed an
oil change according to Audi specifications.
Select
I CAR I function button > Service interval
display > Reset oil change interval
or !CARI
function button > Car systems* control but­
ton
> Servicing & checks > Reset oil change
interval.
0 Note
- Only reset the oil change d isplay when
you have completed an oil change.
-If you disconnect the battery terminals,
no calculat ions can be made for the serv­
ic e interval display during this tim e and
no service rem inder will appear. Remem­
ber that observing the proper service in­
terva ls is vitally important to extending
the life of your vehicle, particularly the
engine, and maintaining its va lue. Even if
the mileage dr iven is low, the max imum
period of one year from one serv ice to
the next must not be exceeded .
(D Tips
The informat ion in the Service Reminder
remains stored even when the vehicle bat­
tery is disconnected.
On-Board Diagnostic
system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) ¢..ift in
the instrument cluster is part of the On-Board
Diagnostic (OBD II) system.
The warning/indicator light illuminates when
the ignition is switched on and goes out after
the engine starts and the idle has stabilized .
This indicates that the MIL is work ing proper­
l y.
Driver information display 29
If the light does not go out after the engine
is started, or illuminates while you are driv­
ing , a malfunction may exist in the engine sys ­
tem.
If the light illuminates, the catalytic con­
verter could be damaged.
Continue d rivin g
with reduced power (avoid­
ing su sta ined high speeds and/or rapid accel ­
erations) and have the cond ition corrected.
Contact your authorized Audi dealer.
If the light illuminates, the electronic speed
li miter may also be malfunct ioning. For more
information
c;,page 30, Electronic speed
limiter.
An improperly closed fuel filler cap may also
cause the MIL light to illuminate
c:;, page 210.
On-Board Diagnostics
Fig. 18 Location of Data Link Connector (D LC)
On-Board Diagnostics monitors the compo­
nents of your emission contro l system . Each
monitored component in your engine system
has been assigned a code. In case of a mal­
function, the component will be identified
and the fault stored as a code in the control
module memo ry .
The MIL light may also illuminate if there is a
leak in the on-board fuel vapor recovery sys­
tem. If the light illumi nates afte r a refueling,
stop the vehicle and make sure the fuel filler
cap is properly closed
¢ page 210.
In order to make an accurate diagnosis, the
stored data can on ly be displayed using spe­
c ial diagnostic equipment (generic scan tool
for 080). .,.

32 Opening and clo sing
- If the power locking system should ma l­
function, you can lock the driver's door us ing the mechanical key
c:> page 3 7.
- If the power locking system should fail,
you can sti ll open the fue l tank flap in an
emergency
c:> page 211.
- You are we ll advised not to keep valua­
bles inside an unattended vehicle, visib le
or not. Even a properly locked vehicle
cannot provide the security of a safe.
- If the LED in the upper edge of the driv­
er's door panel comes on for abo ut 30
seconds after the vehicle is locked, there i s a ma lfunction in the power locki ng or
the anti-theft warning system. Have the
malfunction corrected by an author ized
A udi dealersh ip or qua lified repai r fac ili­
ty.
Key set
F ig . 19 Key set
@ Remote cont rol key with mechanical
key
You can centrally lock and unlock your vehicle
and start the engine with the master key with
remo te con trol. A mec hanical key is integ rat­
ed i n the master key
c:> page 33 .
@ Emergency key
The emergency key is not intended for con­
stant use.
It should on ly be used in an emer­
gen cy, fo r example, in place of the ign ition key
cc> page 84. Keep it in a s afe p lace and do
not ca rry it on your key ring .
Key replacement
If you lose a key, contact you r authorized Audi
dealer immed iate ly to have the
Lost key disa­
bled. Be sure to bring all your keys with you .
Number of keys
You can check the number of assigned keys to
yo ur vehicle
c:> page 11. This allows you to
make su re you have re ceived all of the keys
when you purchase a used vehicle.
Data in the master key
D uring d riving, s ervice and maintenance-rele­
vant data is continuously stored on your mas­
te r k ey. Your Aud i service adviser can read out
t hi s data and tell you abo ut the work yo ur
ve­
hicle needs . This applies also to vehicles with
convenience key*.
Personal comfort settings
If two people use one veh icle, it i s r ecom­
men ded that e ach person alw ays uses "t heir
own" maste r key. When the ignition is tu rne d
off or when the vehicle is locked, personal
convenience setti ngs for the following sys ­
tems are stored and assigned to the remote
master key.
- Climate contro l
- Powe r lock ing system
- Seat memory *
- Parking system*
- Adapt ive cru ise control*
- Side assist*
- Drive se lect*
T he s to red settings are au toma tically recalled
whe n you unlock the vehicle, when yo u open
t h e doors or w hen you t urn on t he ignitio n.
A WARNING
-Do not leave your vehicle unattended
wit h the key in the ignition lock. Entry by
unaut horized persons co uld endanger
you or result in theft or damage the vehi­
cle.
- Do not leave ch ildren unattended in the
veh icle, especially with access to vehicle