engine AUDI A4 2013 User Guide

18 Instrum ent s and w arn ing /indic ato r light s
...L Engine cooling system
A malfunction in the engine cooling system
must be repaired as soon as possible .
• Turn off engine and chec k coolant le vel
If the indicator light t urns on and the mes ­
sage appears, the coo lant temperature is too
high or the coo lant level is too low.
> Pu ll off the road.
> Stop the vehicle .
> Turn off the engine.
> Check coolant level c:> page 226.
> Add coolant if necessary c:> page 22 7 .
> Continue driving only after the eng ine cool­
ant warn ing/ indicator light goes out .
> Contact your authorized Audi dealer for as-
s istance if necessary .
If the engine coolant level is correct, then the radiator fan may be the cause of the malfunc­
tion .
• Coolan t tempe rature! Let engine run w ith
v eh icl e s tationary
If the indicator light turns on and the mes ­
sage appears in trailer mode*, let the engine
run at idle for a few m inutes to cool down.
A WARNING
- If your veh icle should break down for
mechanical or other reasons, park at a
safe distance from moving traffic, turn
off the engine and turn on the hazard
wa rning lights ¢
page 49, Emergency
flashers.
-
- Never open the hood if you see or hea r
steam or coolant escap ing from the en­
gine compartment - you risk being scald ­
ed. Wait until you can no longer see or
hear steam or coo lant escaping .
- The engine compartment of any vehicle
is a dangerous area. Before you perform
any work in the engine compartment,
turn of the eng ine and allow it to cool.
Follow the warning stickers¢
page 213,
Engine compartment .
(D Note
Do not continue driving if the . symbol
ill um inates . There is a malfunction in the
engine cooling system -you could damage
your engine.
@ -Steering column lock
• Stee ring d efec tive ! Do not dri ve vehicle!
If the indicator light turns on and the mes­
sage appears, there is an electronic steering
column lock malfunct ion. You cannot switch
the ignit ion on .
Do
not tow yo ur vehicle because it cannot be
steered . Seek professional assista nee.
l!J:I Steering lock : Cont act de ale r!
If the indicator light turns on and the mes­
sage appears, there is an e lectronic stee ring
co lumn lock malfunct ion .
Drive to your authori zed A udi dealer immedi­
ately to have the ma lfunction corrected .
A WARNING
-
Your vehicle must not be towed in the
event of a malfunction in the elect ronic
steering co lumn lock beca use it cannot be
steered due to the loc ked steering . If it is
towed with the steering locked, there is
the r isk of an accident.
© -Ignition lock
• Ignit ion lo ck defecti ve . Contact dealer!
If the indicator light turns on and the mes­
sage appears, do
n ot switch the ignit ion off
because you may not be ab le to sw itch it on
again.
Drive to your authorized A udi dealer immedi ­
ately to have the malfunction corrected .
On vehicles with convenience key*, the engine
shou ld not be switched
off using the
I S TAR T ENGINE ST OPI button beca use the en­
gine cannot be started again after the ignition
has been switched
off. ..,.

20 Instruments and warning /indicator lights
Contact your authorized Audi dealer as
soon as possible.
-USA models: If the la warning light
and the
E 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. Dr ive
slowly and avoid sudden, hard brake ap­
plications.
- Canada models: If the brake warning
light . and the ABS warning light
li]
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 vehi­
cle repaired immediately by your author­
ized Audi dea ler or a qualified workshop.
Drive slowly and avo id sudden, hard
brake applicat ions.
I I !f Safety systems
The fl (USA models),£,1 (Canada models) in­
dicator light monitors the safety systems (e.g.
airbags, pretensioners) and ill uminates for a
few seconds each time you switch the ignition
on.
If the fl (USA models)/ fll (Canada mode ls)
indicator light does not go out, or if it illumi­
nates while 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 illuminate
when you switch the ignition on, this also
means there is a malfunction.
& WARNING
If you have a malfunction in the safety sys­
tems, contact your author ized Audi dealer
immediate ly. Otherw ise the safety sys­
t ems may not work properly in an acci­
dent.
l ) - : USA mod els only
(0) Worn brake pads
EiJ Brake pads!
If the warning light illuminates, immediately
contact your authorized Audi dealer or quali­
fied workshop to have all brake pads inspect­ ed . On USA models the warn ing light
EiJ
comes on together with the warning light
la-Both sets of brake pads on an ax le
must a lways be rep laced at the same time.
A WARNING
Driving with bad brakes can cause a colli­
sion and serious personal injury.
- If the warning light
EiJ and the warning
light
la1 l with the message Brake
pads! comes on in the instrument cluster
d isplay, immediately contact your au­
thor ized 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.
The ~ warning/indicator light (Electronic
Power Control) illuminates when you switch
the ignition on as a function check.
(D Tips
If this warning/ indicator light illuminates
while you are driving, then there is a mal­
funct ion in the engine electronics. Have
the malfunction corrected as soon as pos­
s ib le by your authorized Audi dealer or
qualified repa ir facility.
Ci Malfunction Indicator Lamp (MIL)
T he Malfunction Indicator Lamp (MIL) is par t
of the On-Board Diagnostic (OBD II) system.
-
The symbo l ¢4' lights up when the ignition is
switched on and will turn off after the engine
has started and has settled at a constant idle
IJ>,

Instruments and warning/indicator lights 21
speed. This ind icates that the MIL is working
properly.
The warning light illuminates when there is a
mal funct ion in the engine e lectronic system.
Contact your authorized Audi dealer and have
the ma lfunction corrected .
An improperly closed fuel filler cap may also
cause the MIL light to illum inate
r::!,> page 217.
For more informat ion r:!,> page 30 .
!?) Engine speed limitation
App lies to vehicles: wit h eng ine speed lim itat ion
(II Do not exceed max. engine speed of
XXXX rpm
The (I! symbol illuminates when there is an
engine control malfunction. Th e~ indicator
l ight in the instrument cluster also illumi­
nates. The engine speed is lim ited to the
speed displayed in the driver information sys ­
tem . Keep in mind that the engine speed will
not exceed the va lue displayed in the driver in­
formation system, for example when down­
shifting.
Drive to your authorized Audi dea ler immedi­
ately to have the malfunction corrected .
~ .. Engine oil level
1111 Add oil , max XXXX l. You may cont. driv.
When the symbo l l!I and driver message ap­
pear , add the amount of oil appearing in the
disp lay at the next opportunity
r:!,> page 224.
~;.., Engine oil sensor
II Oil level! Sensor defective
If the symbol illuminates, contact your au­
thor ized Audi dealer and have the o il sensor
inspected. Until you have this done, check the
oil level each time you refuel just to be on the
safe side
r:!,> page 224 .
Bu Tank system
liJl 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
r:!,> page 216.
Ii] Fuel tank system malfunction! Contact
dealer
If the indicator light turns on and this mes­
sage appears, there is a malf unct ion in the
tank system.
Drive to your authorized Audi dealer immed i­
ate ly to have the malfunction corrected.
<:::> Windshield washer fluid level
- Please refill washer fluid
If the symbol illum inates, add w indshie ld
washe r fluid to the washer system and also to
the headlight washer system*
r:!,> page 233.
'1:> Windshield wipers
El'J Windshield wiper defective
The re is a malfunction with the windshield
wipers.
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected .
~/ }D 10 $ Defective light bulb warning
If the Fl indicator light turns on, a bulb has
failed. The message ind icates the location of
the bulb.
- If the
IIJ indicato r light also turns on, then
a fog light has fai led. The position of the in­
dicator ligh t corresponds wi th the locatio n
on the vehicle .
- If the
ftD indicator light also turns on, then
a rear fog* light has fai led. The position of
the indicator light cor responds wi th the lo­
cation on the vehicle .
T his wa rning can also occu r if the light switch
is in an unengaged posi tion between two sym­
bols .
Vehicle lights: System fault!

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 *
~page253
Trip computer*
Efficiency program*
Service interval display
c::>page25
c::> page 27
c::> page 29
--·-
Gearshift selector positions
Automatic transmission
Adaptive cruise control*
Auto Check Control
<::>page 87
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 .

30 Driver information display
Resetting the service interval display
Your authorized Audi dealer will reset the cor­
responding service schedule after performing
the appropriate service on yo ur 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 ICARI
function button> Car systems* control but­
ton
> Servicing & checks > Reset oil change
interval.
(D Note
If you disconnect the battery terminals, no
calculations can be made for the serv ice
interval display during this time and no
service rem inder wi ll appear. Remember
that observing the proper service intervals
is vitally important to extend ing the life of
your vehicle, particu larly the eng ine, and
maintaining its value. Even if the mileage
driven is low, the maximum period of one
yea r from one service to the next must not
be exceeded .
@ Tips
-Do not reset the display between oil
changes, otherwise the display will be in­
correct.
- The information in the Service Reminder
r ema ins stored even when the vehicle
battery is disconnected.
On-Board Diagnostic
system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) (4 i n
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 working proper­
ly.
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 eng ine sys­
tem . If the light illuminates, the catalytic con­
verter could be damaged .
Continue driving
with reduced power (avoid­
ing sustained 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
limiter may also be malfunct ioning. For more
information
c:> page 31 , Electronic speed
limiter.
An improperly closed fuel filler cap may also
cause the
MIL light to illuminate
c:>page 217.
On-Board Diagnostics
Fig. 18 Locat io n of Data Link Con nector (D LC)
On-Board Diagnostics monitors the compo­
nents of your emission control 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 memory.
The MIL light may also illuminate if there is a leak in the on-board fuel vapor recovery sys­
tem. If the light illuminates after a refueling,
stop the vehicle and make sure the fuel filler
cap is properly closed
c:> page 217.
In order to make an accurate diagnosis, the
stored data can on ly be displayed using spe­
c ial diagnostic equipment (generic scan tool
furOBD) .
~

In o rder 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. 18.
Your authorized A udi dealer or qualified work­
shop can interpret the code and perform the necessary repa ir.
A WARNING
Do not use the diagnostic connector for
personal use. Incorrect usage can cause
malfunctions, which can increase the risk
of a coll is ion!
Electronic speed limiter
-
Your veh icle may be factory equipped with
tires that are rated for a maximum speed of 130 mph (210 km/ h). Thi s is may be less than
the maximum speed of your ve hicle. To red uce
the risk of sudden ti re failure and loss of con ­
trol if the vehicle is operated at excessive
speeds, your vehicle has an e lectronic speed
limiter. The electronic speed limiter prevents
your veh icle from going faster than the t ire
speed rat ing . For more informat ion
¢ page 246 .
If the engine control unit rece ives fa ulty vehi ­
cle roadspeed signa ls, the Ma lfunction Indica­
tor Light (MIL)
¢..ij w ill illuminate . If this oc­
curs, contact the nearest authorized Audi
deale r for assistance.
A WARNING
-
Always observe the posted speed limits
and ad just yo ur speed to suit p revail ing
road, t raff ic and weather conditions . Never
drive your vehicle faster than the maxi ­
mum speed rating of the tires insta lled .
Dri ver information di spla y 31

-If the power lock ing system should ma l­
function, you can lock the driver's door
using the mechanical key~
page 38.
-If the power locking system should fail,
you can still open the fue l tank flap in an
emergency <=>
page 218.
-You are well advised not to keep valua­
bles inside an unattended vehicle, visible
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 about 30
seconds after the vehicle is locked, there
i s a malfunction in the power locking or
the anti-theft warning system. Have the
malfunction corrected by an author ized
Audi dealersh ip or qua lified repair fac ili­
ty.
Key set
Fig. 19 Key set
@ Remote cont rol k ey with me chanical
ke y
You can centrally lock and unlock your vehicle
and start the engine with the master key with
remote control. A mechanical key is integrat ­
ed i n the master key
<=> page 34 .
@ Emerg ency key
The emergency key is not intended for con­
stant use.
It should on ly be used in an emer­
gency, for example, in place of the ign ition key
<=> page 82. Keep it in a safe p lace and do
not carry it on your key ring .
Openin g an d clos ing 33
Ke y re plac ement
If you lose a key, contact your author ized Audi
dealer immediate 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
you r vehicle <=>
page 11. This allows you to
make sure you have re ceived all of the keys
when you purchase a used vehicle.
Data in th e mast er ke y
During driving, service and maintenance-rele­
vant data is continuously stored on your mas­
ter key. Your Audi service adviser can read out
this data and tell you abo ut the work yo ur ve­
hicle needs . This applies also to vehicles with
convenience key*.
Person al comf ort settings
If two people use one vehicle, it is recom­
mended that each person always uses "their
own'' master key. When the ignition is turned
off or when the vehicle is locked, pe rsonal
convenience settings for the following sys ­
tems are stored and assigned to the remote
master key.
- Climate control
- Powe r locking system
- Seat memory*
- Parking system*
- Adaptive cruise control*
- Side assist*
- Drive select*
T he sto red settings are automatically recalled
when you unlock the vehicle, when you open
the doors or when you turn on the ignition .
A WARNING
--
-Do not leave your vehicle unattended
with the key in the ignition lock . Entry by
unauthorized persons could endanger
you or result in theft or damage the vehi­
cle .
- Do not leave ch ildren unattended in t he
veh icle, especially with access to vehicle

34 Openin g and clo sing
keys. Unguarded access to the keys pro­
vides children the opportunity to start the engine and/or act ivate vehicle sys­
tems such as the power w indows etc . Un­
supervised operation of any veh icle sys­
tem by ch ildren can res ult in serious in­
Jury.
- Do not remove the key from the ignition
lock until the vehicle has come to a com­
plete stop. Otherwise the steering col ­
um n loc k co uld suddenly e ngage -caus­
ing the risk of an accident.
@ Tips
- The operation of the remote contro l key
c a n be tempo rarily disrupted by in terfer­
ence from tran smi tters in t he v ici nity of
the veh icle work ing in the same frequen­
cy ra nge (e.g . a ce ll phone, radio equip­
ment).
- Fo r security reasons, replacement keys
are on ly available from Aud i dea le rs .
- Fo r De clarat ion o f Compliance to United
States FCC and Industry Canada regu la ­
tions
¢ page 283.
Removing the mechanical key
Fig . 20 Remot e ma ste r key: re mov ing the mec hanic al
key
.. Press the release button @¢ fig. 20.
.. Pu ll the mecha nical key @ out of the mas­
te r key .
Using the mechan ica l key, you can :
- l ock and unlock* the glove compartmen t on
the passenger's s ide
¢ page 65 .
-lock and unlock t he lockable* rear bench
seat and pass-through* ¢
page 69. -
activate the child sa fety locks on the rear
doors ¢
page 42.
-lock and unlock the vehicle manua lly
~ page 38 if this should not be possible
w ith the master key.
- use t he ignition key emergency release
~ page 35.
Check light and battery in the master
key
Fig. 21 Rem ote mas ter key: re m ov ing th e ba ttery h old ­
e r
Check light in the ma ster key
The check light @¢ fig. 21 in the mas ter key
provides information about different condi­
t ions .
.. The check light turns on br iefly 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 and has to be replaced . In
add it io n, w hen t he battery is dead
the m
indicator light appea rs in the instrument
cl uster display as we ll as the message
Please change key battery .
Master key battery replacement
.,. Remove the m echan ical key ~ page 34.
.,. Press t he release button @~
fig. 21 on the
b attery ho lde r and at the same time pull the
battery holder o ut o f 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 .
.,. Insta ll the mechanical key .

_& WARNING
Always take the key with you when you
leave the ve hicle. The key can disarm the
electronic engine immobilizer and perm it
an unauthor ized person to start the engine
and enable ope rat ion of t he vehicle sys­
t ems such as power window or power sun­
roof leading to ser ious personal injury.
(D Tips
- The vehicle cannot be started if an unau­
thorized key is used . T he vehi cle may not
star t if another radio device such as a key
for another vehicle or a transponder is
l ocated on the key ring.
- For De clarat ion of Compliance to United
States FCC and Industry Canada regula­
tions
¢page 283.
Rear lid
Opening/closing rear lid
F ig . 27 Rear lid: hand le
F ig. 28 Seda n drive r's door : remote rear lid release *
Opening the rear lid
.. Press the button e::5 on the remote contro l
master key for at least one second. The rear
li d unlocks and opens slightly . Or
Op enin g an d clos ing
.. Press the handle on the rear lid ¢ fig. 2 7. Or
.. Sedan: Pull the release button
e::5 in the
driver's door¢
fig. 28
Closin g the re a r lid
.. Pull the rear lid down at the grip on the in­
side and allow it to drop gently to close it
¢ _&. .
_& WARNING
-
-After closing the rear lid, always p ull up
on it to make sure that it is properly
closed. Otherwise it could open suddenly
when the vehicle is moving.
- To help prevent poisonous exhaust gas
from being drawn into the vehicle, al­
ways keep the rear lid closed whi le driv­
ing. Never transport objects larger than
those which fit complete ly into the lug­
gage a rea, because then the rear lid can­
not be f ully closed.
- N ever leave your vehicle unattended es­
pecia lly with the rear lid left open.
A
child cou ld craw l in to the car thro ugh the
luggage compartment and pull the lid
shut, becoming trapped and unable to
get out. To reduce the risk of personal in­
jury, never let children play in or around
your vehicle. Always keep the rear lid as
well as the ve hicle doors closed when not
in use .
- Always ensure that no one is within
range of the rear lid when it is moving, in
particular close to the hinges -fingers or
hands can be pinched.
(D Tips
When the vehicle is locked, the rear lid can
be opened separately by pressing the but­
ton
e::5 on the master key. When you close
the rea r lid aga in, it locks automat ica lly.
39

Opening th e windows
"' Press the switch to the firs t stop and hold it
until the window reaches the desi red posi ­
tion.
"' Press the switch briefly to the se cond stop
to automatically open the window .
Cl os ing th e windows
"' Pull the swi tch to the first sto p and hold it
until the window reaches the desi red posi ­
tion .
"' Pu ll the switch brief ly to the sec on d st op to
automatica lly close the window.
P ow er w ind ow switch es
@ Driver's door
@ Passenger's door
© Left rea r door
@ R ight rear door
® Safety button
Child safety loc ks
When the safety button® is pressed
c::> fig. 35, the ~ symbol in the button lights
up . The power w indow switches in the rear
doors are switched off.
A WARNING
- When you leave your veh icle - even if on­
ly briefly - always remove the ign ition
key. This applies part icularly when chil­
dren remain in the vehicle. Otherw ise the
children cou ld s tart the engine or oper­
ate e lectr ica l equipment (e.g . power win­
dows). The power windows a re f unction ­
al until the driver's door or passenger's
door has been opened.
- Pay close attention when closing the win­
dows to prevent pinching of hands or
limbs.
- When locking the vehicle from outside,
the vehicle must be unoccupied s ince the
windows can no longer be opened in an
emergency.
Opening and clo sin g 43
(D Tips
After the ignition has been switched off,
the w indows can still be opened or closed
for about 10 minutes. The power windows
are not switched off until the driver's door
or passenger's door has been opened .
Convenience opening/closing
The windows and the power sunroof can be
opened and closed with the mechanical key or the emergency key.
Fig. 36 Key turns for opening and clos ing
Convenience opening feature
"' -0 0 t!, ., a,
"' Use the emergency key or pull the mechani­
cal key out of the maste r key
c:? page 34.
"' Insert the key into the lock of the dr iver's
door.
"' Turn the key to position ¢
fig. 36 @until all
the windows have reached the desired posi­
tion and the power sunroof is open.
Convenience closing f eature
"' Use the emergency key or pull the mechani ­
cal key out of the maste r key ¢
page 34.
"' Turn the key in the lock of the driver's door
to the lock position @ unt il the windows
and the power sunroof are closed¢
A.
A WARNING
- Never close the w indows and the power
sunroof inattentively and without check­ ing - the re is r isk of injury.
- You must always watch when the win­
dows are be ing raised so that no one can
be trapped. If you re lease the key, the
clos ing action is immediately canceled.