2015 AUDI A4 reset

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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). .,.

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@ Tips
For safety reasons, the par king brake is re­
leased au tomatically only when the dr iv­
er 's safety belt is engage d in the buckle.
Starting off with a trailer
To prevent rolling back unintentionally on an
incline , do the following:
~ Keep the switch @¢ page 87, fig . 101
pulled and depress the accelerator. The
park ing brake stays app lied and prevents
the vehicle from rolling backward.
~ You can release the switch @once you are
sure that you are develop ing enough dr iv ing
force at the wheels by depress ing the accel­
erator .
Depending on the weight of the r ig (vehicle
and trailer) and the severity of the incl ine, you
may roll backwards as you start . You can pre­
ve nt rolling backwards by holding the parking
b rake sw itch @pulled out and accelerating -
jus t as you would whe n starting on a hill with
a conventional hand brake.
Emergency braking
In the event that the conventional brake sys ­
tem fails or locks.
~ I n an eme rgency, pull the sw itch @
¢page 87, fig. 101 and continue to p ull it
to s low your vehi cle down wi th the pa rk ing
brake .
~ As soon as you release the switch @ or ac-
ce lerate, the braking process stops.
I f you pull the switch @and ho ld it above a
speed of about 5 mph (8 km/h), the emergen ­
cy braking function is initiated . The vehicle is
braked at a ll four wheels by activating the hy­
draulic brake system. T he brake performance
is similar to making an emergency stop ¢
&. .
In order not to activate the emergency brak ­
ing by m istake, an a udible warning tone (buz­
zer) sounds when the switch @is pulled. As
soon as the switch @ is released, or the accel-
On th e ro ad 89
erator peda l is depressed, eme rgency braking
stops.
A WARNING
Emergency braking should only be used in
an emergency, when the norma l foot brake
has fa iled or the brake pedal is obstructed.
Using the parking brake to perform emer­
gency b rak ing will slow your vehicle down
as if you had made a full bra ke application .
T he laws of physics cannot be suspended
even with ESC and its asso ciated compo­
nents (ABS, ASR , EDS) . In corners and
when road or weathe r conditions are bad,
a full brake application can ca use the vehi­
cle to sk id or the rear end to break away -
risking an accident.
Speed warning system
Overv iew
The speed warning system helps you to keep
your driving speed below a set speed limit.
The speed warn ing system warns if the driver
exceeds a previous ly stored max imum speed.
A war ning tone w ill so und as soon as the vehi­
cle speed exceeds the set speed by about 3 mph (3 km/h). At the same time, a warn ing
symbol appears in the display. The symbo l's
appearance might be different in some mod ­
els.
T he speed wa rn ing system has one or two*
warning thresholds that func tion independ ­
en tly of each othe r and that have somewhat
different purposes:
Speed warning 1
You can use speed warn ing 1 to set the maxi­
mum speed while you are d riving. This se tting
will re ma in in effec t unti l yo u t urn
off the ig ni­
tion, assuming that yo u have no t changed or
reset the setting.
T he . (USA models)/ . (Canada models)
speed wa rning sym bol in the warn ing 1 dis-
play appears w hen you exceed the maximum ..,.

90 On the road
speed. It goes out when t he speed fa lls below
the stored maximum speed .
The speed warning symbo l w ill also go out if
the speed
exceeds the s to red m ax imum speed
by more than about 25 mph ( 40 km/h) for at
least 10 seconds. The stored maximum speed
is deleted.
Sett ing speed wa rning 1
~ page 90.
Speed warning 2*
Storing warning 2 is recommended if you al­
ways
want to be reminded of a certa in speed,
for examp le when you a re traveling in a coun­
try that has a general maximum speed limit,
or if you do not want to ex ceed a spec ified
speed for winter tires.
The . (USA models) /. (Canada mode ls)
speed warning 2 symbo l appears in the dis­
p lay when you exceed the stored speed limit .
Unlike warning 1, it will not go out until t he
vehicle speed drops below the stored speed
limit.
Sett ing speed wa rning 2
~ page 90.
@ Tips
Even tho ugh your vehicle is equipped wi th
a speed wa rni ng sys tem, you s hou ld s till
watch the speedometer to make sure you
are not drivi ng faster than the speed limit.
Speed warning 1 : setting a speed limit
Warning threshold 1 is set by the I SET ! but­
ton .
Fig. 102 SET button in the inst rum en t cluste r
Storing the ma ximum speed
.,. Dr ive at the desired maximum speed .
.,. Press the
ISETI button in the instrument
panel display ~
fig. 102 for 1 second.
Resett ing the maximum speed
.,. Dr ive the veh icle at a speed of at least
3 mph (5 km/h)
.,. Press the
I SET I but ton for more than 2 sec-
onds.
T he . (USA models)/ . (Canada models)
speed w arning symbo l w ill appe ar briefly in
the d isplay when you release the
ISETI button
to indicate t hat the maximum speed has been
stored successfully .
T he maxim um speed remai ns stored un til it is
changed by pressing the
! SE T! button again
briefly or until it is deleted by a lengthy push
on the button .
Speed warning 2: setting a speed limit
Applies to veh icles: w it h trip co mputer
The radio or MMI* control unit is used to set,
change or delete warning threshold 2.
.,. Sele ct: !CAR I func tion button > Instrument
cl uster > Speed warnin g.
Or
.,. Select:
!CARI function button > Car system s*
contro l button > Dri ver a ssist > Speed warn­
ing .
Warning threshold 2 can be set in the speed
range starting from 20 mph to 150 mph (30
km/h to 240 km/h) . Settings can each be ad­
justed in intervals of 6 mph (10 km/h).

92 On the road
If, however, you exceed your saved speed by
6 mph (10 km/h) for longer than 5 minutes,
the cruise contro l will be turned off tempora­
rily. The green symbol in the display turns
white. The saved speed remains the same.
Presetting your speed
You can preset your desired speed while the
vehicle is not moving .
.. Switch on the ignition .
.. Pull lever into position @¢
page 91,
fig. 103 .
.. Press the lever in the 0 or 0 direction to
increase or decrease your speed .
.. Release the lever to save that speed .
This funct ion makes it possible, for example,
to save the speed you want befo re driving on
the hig hway . Once on the hig hway, activate
the cruise cont ro l by pull ing the lever towa rd
@ .
Switching off
Temporary deactivation
• Press the bra ke peda l, or
• Manual transmission : Keep the clutch ped al
pressed down
longer , or
.. Press the lever into position @ (not clicked
into p lace)
c:> page 91, fig . 103, or
.. Drive for longer than 5 minutes at more
t h an 6 mph (10 km/h) above the stored
speed.
Switching off completely
.. Press leve r into position @(clicked into
place), o r
.. Switch the ign ition off.
The speed yo u saved w ill be re tained if the
cr uise control has bee n switched off tempora ­
rily. To resume the saved speed, let up on the
brake or cl utch peda l and pull the lever to po­
si tion @.
Switching the ignition off erases the saved
speed.
A WARNING
You shou ld only return to the saved speed
i f it is not too fast for the current traffic
conditions - r isk of an accident!

104 Audi adaptive cruise control and braking guard
Switching on and off
Applies to vehicles: with Audi adaptive cruise control
Fig. 117 Se lec tor lever: switching on/off
Fig. 118 Instrument clus te r: A udi adap tive c ru ise co n·
trol
You can set any speed between 20 mph and
95 mph (30 and 150 km/h).
Indicator lamps and messages in the instru·
ment cluster display inform you about the cur·
rent system status and settings.
Switching Audi adaptive cruise control on
• Pull the lever toward you into position (D
¢fig. 117. ACC standby appears in the in ·
strument cluster display.
Setting the speed and activating
regulation
.. To set the current speed , press the !SE T! but·
ton
¢ page 11, fig . 4. The set speed is shown in
the tachometer @and is also
shown briefly in the display@¢
fig. 118.
Switching Audi adaptive cruise control off
• Push the lever away from you into position
@ until it clicks into place. The message
ACC off appears.
@ Indicator lights
11 · Adaptive cruise control is sw itched on.
No vehicles are detected up ahead. The stored
speed is maintained.
• · A moving vehicle is detected up ahead .
T he adaptive cru ise control system regulates
the speed and distance to the moving vehicle
ahead and accelerates/brakes automatically .
• · When automatic braking is not able to
keep enough distance to a previously detected
moving veh icle up ahead, you must take con·
trol and brake
¢ page 107, Request for driver
intervention.
© Display
If adapt ive cru ise control is not shown in the
display, you can call it up w ith the
I RESET I
button ¢ page 2 3 .
Based on the symbols in the display, you can
determine if the system is maintain ing a d is ·
tance to the vehicle ahead and what that dis­
tance is.
No vehicle· No vehicle ahead was detected .
White vehicle -A vehicle ahead was detected .
Red vehicle -Prompt for the driver to take ac­
tion
,=;, page 107.
Both arrows on the scale © indicate the dis·
tance to the vehicle ahead. No arrow appears
when the vehicle is on an open road and there
is no object ahead. If an object is detected
ahead, the arrow moves on the scale .
T he green zone on the scale shows the stored
distance. For information on changing the
stored distance, refer tor=;,
page 106 . If the
distance se lected is too close or may soon be·
come too close , the arrows move into the red
zone on the sca le. .,.

258 Tires and wheels
Accordingly, when the low tire pressure tell­
tale illuminates, you should stop and check
your tires as soon as possible, and inf late
them to the proper pressure. Driving on a sig­ nificantly under-inflated tire causes the tire to
overheat and can lead to tire failure. Under-in­
flation also reduces fuel efficiency and tire
tread life, and may affect the vehicle's han­
dling and stopp ing ability.
Please note that the TPMS is not a subst itute
for proper tire maintenance, and it is the driv­
er's responsib ility to ma inta in correct tire
pressu re, even if under- inflation has not
reached the level to trigger illumination of the
TPMS low tire pressure telltale.
Your veh icle has also been equ ipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale . When the sys­
tem detects a malfunction, the te lltale will
f lash for approximately one minute and then
remain cont inuous ly illuminated. This se­
quence will continue upon subsequent vehicle
start-ups as long as the ma lfunction ex ists .
When the malfunct ion indicator is illuminat­
ed, the system may not be able to detect or
signal low t ire pressure as intended. TPMS
malfunctions may occur for a variety of rea­
sons, includ ing the installat ion of replace­
ment or a lternate tires or whee ls on the veh i­
cle that prevent the TPMS from functioning
p rop erly. Always check the TPM S malf unct ion
tellta le after replacing one o r more t ires or
wheels on your vehicle to ensure that the re­ p lacement or a lternate tires and wheels allow
the TPMS to continue to function properly. Tire pressure indicator appears
App lies to vehicles : wi th tire p ress ure mo nito rin g system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction .
Fig. 194 Display: u nde rinfla tion warning
Using the ABS sensors, the tire pressure moni­
toring system compares the tire tread circum­
ference and vibration characteristics of the in­
dividua l tires.
If the pressure decreases in one
or more t ires, this is indicated in the instru­
ment cluster with a
RI] war ning symbol and a
message¢
fig . 194 . The driver message in the
display goes out afte r 5 seconds . The driver
message can be displayed again by pressing
the
ISETI button. If o nly one tire is affec ted,
the display will ind icate its position.
The tire pressure monitoring system must be
reset via rad io or MMI* each time the pres­
sures are adjusted (e.g. when switching be­
tween partial and full load pressure) or after
changing or replacing a tire on your ve hicle
¢
page 259. The TPMS indicator only moni ­
tors the tire pressure that you have previous ly
stored. You can find the recommended tire
pressures for your vehicle on the label on driv­
er's side 8-pillar ¢
page 234.
Tire tread circumference and vibration charac­
teristics can change and cause a tire pressure
warning if:
- the tire pressure in one or more tires is too
low,
- the tir e has structural damage,
- the tir e pressure was changed, wheels rotat-
ed or rep laced but the TPMS was not reset
¢page 259, ..,_

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-the spa re tire* /inflatable spare tire* is
mounted.
Warning symbols
[IJ Loss of pressure in at least one tire¢,&. .
Check the tire or tires and replace or repair if necessa ry. The indicator light
[IJ in the instru ­
ment cluster also illuminates
¢page 13.
Check/correct the pressures of all four tires
and resetTPMS via radio or MMI*.
mm (T ire Pressure Monitoring System) Ti re
pre ssure: S ystem m alfuncti on!.
1tE appea rs after sw itching the ign it ion on
or while d rivi ng and the ind icator light
[IJ in
the instrument cluster blinks for approxi­ mately one minute and then stays on, there is
a system malfunction. Attempt to store the
correct t ire pressure ¢
page 259. If the indi­
cator light does not turn off or if it turns on
shortly thereafter, immediately drive your ve­
h icle to an authorized Audi dealer or author­
ized repair facility to have the malfunction
corrected.
.&, WARNING
- If the t ire pressure indicator appears in
the instrument cl uster d isplay, one or
more o f your tires is significantly under­
inflated. Reduce your speed immediately
and avoid any hard steering or braking
maneuvers. Stop as soon as possible and
check the t ires and the ir pressures. In­
flate the tire pressure to the proper pres­
sure as indicated on the vehicle 's t ire
pressure label~
page 234 . Driving on a
significantly under-inflated tire ca uses
the tire to overhea t and can lead to tire
failure. Under-inflation also is likely to impair the vehicle 's handling and stop ­
ping ability.
- The driver is responsible for mainta ining
the correct tire pressures. You must check the tire pressures regularly .
- Under certain cond itions (such as a spor ­
ty driving style, winter conditions or un­ paved roads), the pressure monitor indi­
cator may be de layed .
Tire s an d wheel s 259
-Ask your a uthorized Audi dea ler if run­
flat tires may be used on your vehicle.
(D Tips
- The tire pressure mon itoring system may
stop working when there is an ESC ma l­
function.
- Using snow chains may res ult in a system
ma lfunction.
- The tire pressure mon itor ing system on
your Audi was deve loped using tires with
the "AO" or "RO" identification on the
tire s idewall
~ page 248. We recom­
mend us ing these tires.
Reset tire pressure monitoring system
App lies to vehicles: with tire pressure mon itor ing system
If the tire pressure is adjusted, wheels ore ro­
tated or changed, the TPMS must be reset via
radio or MMI*.
... Before storing the new tire pressures, check
that the current pressures on all four tires
correspond to the specified va lues and
adapt the pressures to the current load
¢ page 234.
.,. Switch on the ignition.
.,. Select: the
I CARI funct io n button > Tir e pre s­
s ure mon itoring
> Store now . Or
.,. Select: the
I CARI fu nct ion button > Car sy s­
tem s*
contro l button > S erv icing & che cks >
Tire pres sure mon itor in g > Store tire pre s­
s ures
> Yes, sto re now .
(D Tips
Do not store the tire pressure if there are
snow chains on the tire . Otherwise, a sys­
tem mal function may occur.
•
•

29 0 Index
Child restra ints
D ang er of using child restraints in th e
front seat . . . . . . . . . . . . . . . . . . . . . . . . 145
Where can I get addit ional information
about child restra ints and their use? . . 183
C hild restraint system anchors ..... .. . 179
Ch ild safety .. ................ ... ... 165
Conve rtible locking retracto r .. .. ..... 175
I mportant safety instructions fo r using
ch ild safety seats ....... .. .. .. .. .. . 168
I mportant things to know when driving
with chi ldren .. .. ..... ... .. .. .... . 165
Installing a child restraint us ing the
LATCH system . . . . . . . . . . . . . . . . . . . . . 180
Lower anchorages .......... .. .... . 180
Mount ing and releasing the anchorage
hook .. .... .......... ...... ... .. . 180
Tether anchors ............... .. ... 181
Tether st raps .......... .. .. .. .. .. . 18 1
Ch ild safety locks
Power windows . ..... .... .. .. .. .. .. 42
Rear doors . .............. ... .. .. .. 41
C hild safety seats .. ..... ... .. .. .... . 17 1
Booster se ats . . . . . . . . . . . . . . . . . . . . . 173
Convertible c hild seats .... .. .. .... . 172
Convertible locking retracto r .. .. ..... 175
Danger of us ing c hild restra ints in the
front seat . . . . . . . . . . . . . . . . . . . . . . . . 145
H ow do I proper ly install a child safety
seat in my vehicle? ...... .. .. .. .. .. . 168
I nfant sea ts ............. .. .. .. .. . 17 1
I ns tall ing . . . . . . . . . . . . . . . . . . . . . . . . 17 5
LATCH system .. .. ..... ... .. .. .... . 180
Safety instructions ..... ... .. .. .... . 168
Unused safety belts on the rear seat . . 170
C igare tte lig hte r . . . . . . . . . . . . . . . . . . . . . 65
C leaning .. .. ................ ... .. .
202
Climate controls . . . . . . . . . . . . . . . . . . . . . 78
C lima te con trol system
Automat ic recircula tion .... .. .. .. .. . . 81
Supp lementary hea ter ... .. .. .. .... . . 81
synchronizing .. . ...... ... .. .. .... .. 81
C lock ....... .......... ...... ... .. .. 12
C losing
Power windows .......... .. .. .... .. 42
Sliding/tilting sunroof ...... ..... .. .. 43
Sunshade .. ................ ... ... . 43 Closing/opening
at the lock cylinder . . . . . . . . . . . . . . . . . . 3 7
by remote control . . . . . . . . . . . . . . . . . . 34
with the centra l locking switch ... .... . 3S
with the conven ience key ........ .... . 35
Co ld tire infla tion pressure ..... ... .. .. 234
Coming home . . . . . . . . . . . . . . . . . . . . . . . 50
Compact spare ti re . ............. .... 260
also refer to Spare tire .......... .. .. 260
Compartments . . . . . . . . . . . . . . . . . . . . . . 68
Compass in the m irror ... .. ... ..... .. . 58
Compliance ..... .. .. ... ..... ... .. .. 286
Consumer Informa tio n . . . . . . . . . . 134, 283
Contacting NHTSA . ... .......... .. .. 134
Controls Cleaning . ..... .. .. ... ..... ... .. .. 204
Convenience key Indi cator lights .. ... .......... .. .. . 86
Star ting engine (S TART E NGIN E STOP
button) ... .... .. ... .. ..... ... .. .. . 85
Stopping the engine (START ENGINE
STOP button) . . . . . . . . . . . . . . . . . . . . . . 86
Switching on ignition ........... .... . 85
unlocking/lock ing ............. .... . 35
Convenience opening/clos ing ... .. .. .. . 42
Convertib le child safe ty seats ........ . 172
Convertib le locking retractor
Activating . .. .. .. ............. .. .. 177
Deact ivat ing ... .. ... .... ...... .... 178
U sing to secure a child safety seat 1.75, 177
Coolant system .... .. ... ..... ... .. .. 218
Cooling mode (automat ic climate co ntrol) 79
Cooling System Expansion tank . .. .......... ...... . 218
Cornering light .... .. .... .... ... .. .. . 49
Cru ise cont ro l
Changi ng speed .. ............. .. .. . 91
Presett ing you r speed .......... .... . 92
Switching off .... .. ... ..... ... .. .. . 92
Switching on ..... ... .. ..... ... .. .. . 91
Cruisi ng range ... .. ............. .... . 24
( u pholder .. .... .. ............. .... . 67
D
Data recorder . . . . . . . . . . . . . . . . . . . . . . 184
Date d isp lay .... .. ............. .... . 12