2015 AUDI S4 length

24 Driver information d isplay
Trip computer
Introduction
Applies to vehicles: wit h trip computer
The trip computer gives you information on
current and average fuel mileage, average
speed, fuel range and driving time .
Fig. 9 Tri p comp uter d isp lay: Ave rage fuel mileage
The follow ing informat ion is continuously
evaluated by the trip computer and can be dis­
p layed sequentially in the instrument cluster
display:
Fuel range
The estimated cruising range in miles (km)
appears in the display. This tells you how far
your vehicle wi ll be able to t ravel on the cur ­
rent tank of fue l and with the same driving
style. The display changes in increments of
5 miles (10 km).
The cruising range is calculated based on the
fuel consumption for the last 18 miles
(30 km). If you drive conservatively, the cruis­
ing range will increase.
Average fuel mileage
The average fuel economy in MPG (l/100 km)
since you last cleared the memory appears in
this display. You can use this disp lay to adjust
your driving technique to achieve a desired mileage .
Current fuel mileage
The instantaneous fuel consumption in miles
per gallon (l/100 km) is shown in this display .
You can use this display to adjust your driving
technique to achieve a desired mileage. Fuel
consumption is recalcu lated at intervals
of 33 yards (30 meters). This disp lay switches
to gallons/hour (liters/hour) when the vehicle is not moving.
Average speed
The average speed in mph (km/h) s ince you
last reset the memory appears in the display.
Elapsed time
The length of time that you have been driving
s ince you last reset the memory appears in
th is disp lay.
Distance
The distance that has been covered since the
last t ime the memory was cleared appears in
the display.
(0 Tips
- Fuel consumptions (average and cur ­
rent), range and speed are displayed in
metric units on Canadian models.
- All stored values will be lost if the vehi­
cle battery is disconnected .
Memories
Applies to veh icles: w ith t rip co mputer
The trip computer is equipped with two fully
automatic memories as well as an efficiency
program* .
Fig. 10 Trip computer d isp lay : memory leve l 1
You can switch between the trip computer 1
and 2 and the efficiency program* by pressing
the
I RESET ! button@<=:> page 25 , fig . 11.
You can tell which memory leve l is cu rrently
active by the number o r the sign in the display
IJ,-

50 Clear vis ion
@ Tips
- The light sensor* for headlight control is
located in the rear view m irror mount.
You should therefore not apply any st ick­
ers to the windsh ield in this area in order
to prevent malfunctions or failures.
- Some exterior lighting functions can be
adjusted
c> page 50.
- When you remove your key from the igni­
tion while the vehicle's lights are turned
on, a buzzer sounds as long as the driv­
er's door is open .
- In cool or damp weather, the ins ide of
the headlights, turn signals and tail lights can fog over due to the tempera­
ture difference between the inside and
outside. They will clea r shor tly after
switching them on. This does not affect
the service life of the lighting.
- In the even t of a light sensor malfunc­
tion, the driver is no tified in the instru­
ment cluster disp lay¢
page 22.
Turn signals and high beam lever
The lever operates the turn signals, the high
beams and the headlight flasher .
Fig. 44 Tu rn s ig na l and hig h beam lever
Turn sign als ¢i ¢
The turn signals activate when you move the
l ever into a turn s ignal pos ition when the ign i­
tion is switched on.
(D -right turn signal
@-left tur n signa l
The turn s ignal blinks three times if you just
tap the lever .
High be ams and headlight flasher [D
Move the lever to the correspon ding posit io n:
@ -high beams on
@ -high beams off or headlight flasher
The indicator light
ii in the instrument cl us­
te r turns on .
Notes on thes e features
-The turn signals on ly wor k w ith the ignition
t ur ned on. The indicator ligh ts
Ct or a in
the instrument cluster also blink.
- After you have turned a co rner, the turn s ig ­
na l switches off au toma tically .
- The
high beam works on ly w hen the head­
lights a re on. The ind icator ligh t
II in the
instrument cluster illuminates when the
high beams are on .
- The
headlight flasher works o nly as long as
you ho ld the lever -even if there a re no
lights switched on . The indicator light
II in
the instrument cluster illuminates when you
use the headlight flasher.
A WARNING
--
Do not use the h igh beam or headlight
flasher if you know that these could blind
oncom ing traffic.
Adjusting exterior lighting
The functions ore selected in the radio or
MMI" .
.,. Select: !CARI function button> Exte rior
light ing .
Or
.,. Select: !CARI function button > Car systems *
control button > Vehicle s etting s> Exterior
lighting .
Coming home (light when leav ing car }*,
Leav ing home (light when unlocking car )*
The coming home function illuminates the
area around the vehicle when the ignition is
switched off and th e dr ive r's door is open ed.
Depend ing on veh icle equ ipment, the function
can be switched on and off or the length of
time the lig hts remain on* can be ad justed . ..,.

54 Clear vision
-If electrolyte gets into the eyes, flush
them thoroughly with large amounts of
clean water for at least 15 minutes;
medical attention is recommended.
- If electrolyte contacts skin, flush affect­
ed area with clean water for at least 15
minutes and then wash affected area
with soap and water; medical attention
is recommended. Thoroughly wash af­
fected clothing and shoes before reuse.
-If swallowed and person is conscious,
rinse mouth with water for at least 15
minutes. Do not induce vomiting unless
instructed to do so by medical professio­
nal. Get medical attention immediately.
Liquid electrolyte leaking from broken mir­
ror glass will damage any plastic surfaces
it comes in contact with. Clean up spilled
electrolyte immediately with clean water
and a sponge.
(D} Tips
- Switch ing off the dimming function of
the inside rear view mirror also deacti­
vates the automatic dimming function of
the exterior mirrors.
- Automatic dimming for the mirror only
operates properly if the sun shade* for
the rear window is not in use or the light
strik ing the inside mirror is not hinde red
by other objects.
- The automatic dimming mirrors do not
dim when the interior lighting is turned
on or the reverse gear is selected .
, Sun visors
Fig. 51 Drive r's side; sun visor
The sun visors for the driver and passenger
can be pulled out of their brackets in the cen­
ter of the vehicle and turned towards the
doors @. After the sun visor has been turned
to the door, it can be extended lengthw ise.
The mirror light switches on when the cover
over the vanity mirror @opens.
Rear door sun shade
Applies to vehicles: with rear door sun shade
Fig. 52 Raised rear door sun shad e
.,. Pull the shade out and hang it in the bracket
on the upper door frame~
fig. 52.

M N
~ co
rl I.O
"' rl
"' rl
close to this position as possible
c:>page 63.
A WARNING
Never place any objects in the driver's foot­
well. An object could get into the pedal
area and interfere with pedal function. In
case of sudden braking or an accident, you
would not be able to brake or accelerate .
Front passenger's seat
Always move the front passenger seat into
the rearmost position .
To avoid contact with the airbag while it is de­
ploying, do not sit any closer to the instru­
ment panel than necessary and always wear
the three-point safety belt provided adjusted
correctly . We recommend that you adjust the
passenger's seat in the following manner:
.,. Bring the backrest up to an (almost) upright
position.
Do not ride with the seat reclined .
"" Applies to vehicles with adjustable head re­
stra ints: Adjust the head restraint so the up­
per edge is as even as possible with the top
of your head. If that is not possible, try to
adjust the head restraint so that it is as
close to this position as possible
c:> page 63.
.,. Place your feet on the floor in front of the
passenger's seat .
Front seats
Manual seat adjustment
Appl ies to vehicles: with manu ally a djustable seats
Fig. 61 Fr ont seats: manual seat adjustment
Seats and storage 61
Controls
@-Moving the seat forward/back: pull the
lever and slide the seat
c:> A.
@ -Lengthening/shortening the upper thigh
support*: lift the handle. A spring moves the
support forward
c:> ,& .
@ -Adjust ing the angle* of the seat surface:
pull/press the lever
c:> ,& .
@) -Adjusting the lumbar support*: press the
button in the corresponding position
c:> ,& .
®-Moving the seat up/down: pull/press the
lever
c:> .&. .
@ -Adjusting the backrest angle : turn the ad­
justing wheel
c:> .&..
A WARNING ,--
-Never adjust the driver's or front pas­
senger's seat while the vehicle is moving.
If you do this while the veh icle is moving,
you will be out of position. Always adjust
the dr iver's or front passenger's seat
when the vehicle is not mov ing.
- Be careful when adjusting the seat
he ight. Check to see that no one is in the
way, or ser ious injury could result!
- To reduce the risk of injury in the case of
sudden braking or accident, front pas­
sengers must never rid e in a moving ve­
hicle with the backrest reclined. Safety
be lts and the airbag system on ly offer
maximum protection when the backrest
is upright and the safety belts are prop ­
erly positioned on the body. The more
the backrest is reclined, the greater the
risk of personal injury from an incorrect
seating position and improperly posi­
tioned safety belts.

62 Seats and storage
Power seat adjustment
App lies to vehicles: with power adjustable seats
Fig. 62 Front seats: powe r seat adjust men t
Contr ols
@ -Adj usting the lumbar support*: press the
button in the corresponding position ¢.&. .
@ -Moving the seat up/down: press the but­
ton up/down ¢.&. .
@ -Moving the seat forward/back: p ress the
button fo rward/back
¢ & .
©-Adjusting the backrest angle: press the
button fo rward/back
¢ & .
©-Raising/lowering* the head restraints:
press the button up/down ¢ .&. .
@ -Lengthening/shortening the upper thigh
support*: lift the handle. A spring moves the
front seat cushion forward¢& .
A WARNING
- Never adjust the d river's or front pas ­
senger 's seat while the veh icle is moving .
If you do this wh ile the vehicle is movi ng,
yo u will be out of posit ion. Always adjus t
the drive r's or front passenger's seat
when the vehicle is not moving .
- Be care ful when adjus ting the seat
heig ht. Check to see that no one is in the
way, o r serious injury could result!
- B eca use the sea ts can be elec trically ad­
justed with the ignit ion off or with the
ignition key removed, never leave chil­
dren unattended in the vehicle. Unsuper­
vised use of the electric seat adjust­ ments may cause serious injury. -
To reduce the risk of injury in the case of
sudden braking or accident, front pas­
sengers must never r ide in a moving ve­
hicle with the backrest reclined . Safety
be lts and the airbag system only offer
maximum protection when the backrest is upr ight and the safety belts are prop­
e rly po sit ioned on the body. The more
the backres t is reclined, the grea ter the
risk of persona l injury from an incorrect
seating position and imprope rly posi­
tioned safety belts.
Center armrest
The center armrest can be adjusted to several
levels .
Fig . 63 A rm rest betwee n the d rive r's/front passenger's
seats.
Ad ju sting the center armrest
"" To adjus t the ang le, raise the armrest from
the starting position
¢ fig. 63 detent by de­
t en t.
.,. To bring the armrest back into the starting
position, raise it out of the top detent and
fold it back down.
T he armrest can slide forwar d and back .

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).

'"" N
0 ::.,: co ,...., \!) 1.1"1 ,...., 1.1"1 ,....,
-Have your vehicle maintained properly
and in accordance with the service rec­
ommendations in your Warranty
&
Maintenance booklet.
- Lack of proper maintenance as well as
improper use of the vehicle will impair
the function of the emission control
system and could lead to damage.
@ For the sake of the environment
Even when the Emission Control System is
operating properly, the exhaust gas can
have a sulfur-like exhaust gas smell under
some operating states. This depends on
the sulfur content of the fuel being used .
Using a different brand of fuel may help,
or filling the tank with lead-free super
grade gaso line.
Shutting down vehicle
If you wou ld like your veh icle to remain inop­
erat ive for a longer period of time, contact an
Aud i or other specialized dealer. They can ad­
vise you on necessary precautions e .g. corro­
sion prevention, maintenance and storage. Pay attention to add itional information con­
cerning the battery. Refer to¢
page 222.
Operate your vehicle
economically and
minimize pollution
General
Your personal style of driving will determine
the economy of your vehicle , as well as ex­
haust and noise levels .
Fuel economy, environmental impact, and
wear on your engine, brakes and tires largely
depend on three factors:
- your persona l driving style
- operating conditions
- technical lim itations
If you anticipate what you need to do next and
drive economically, you can easily cut your
fuel cons umption by 10-15 percent. This sec-
Driving and environment 195
tion wi ll give you some tips on how you can
help the environment and your pocketbook.
(0 Tips
The consumption estimates as published
by ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the
road, which will vary depending upon vehi­
cle load and speed, road and weather con­
dit ions, trip length, etc.
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they are ac­
celerating .
.,. Avo id unnecessary accelerating and brak ing.
Vehicles use the most fue l when they are ac­
ce lerat ing. If you anticipate what is going to
happen next, you will need to brake less and,
thus, accelerate less . Let the vehicle coast
whenever possible -for example when you see
that the next traff ic light is red.
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage .
.,. Try and keep well below your car's maximum
speed.
Acce lerating gently reduces fue l consump­
tion, eng ine wear, and does not disturb the
environment .
Fuel consumption, exhaust emissions and en­
gine noise increase disproportionately at high
speeds. If you drive at approximately three quarters of top speed, fuel consumption will
be reduced by one half. Never drive faster
than the posted speed l imit and weather con­
ditions permit.
•
•

256 Tires and wheels
be fitted over the wheel bolts. These are
available from authorized Audi dealers.
A WARNING
Using the wrong snow chains for your vehi­
cle or installing them incorrectly can in­
crease the risk of loss of control leading to
serious personal injury.
- Snow chains are available in different
sizes. Always make sure to follow the in­
structions provided by the snow chain
manufacturer .
- When driving with snow chains never
drive faster than the speed permitted for
your specific snow chains.
- Always observe local regulations .
- Remove snow chains before driving on
roads not covered with snow to avoid
damaging tires and wearing the snow
chains down unnecessarily .
- Snow chains, which come into direct con­
tact with the wheel rim, can scratch or
damage it . Therefore, make sure that the
snow chains are suitably covered . Check
the position of the snow chains after
driving a few yards and correct if neces­
sary. Follow the instructions from the
snow chain manufacturer when doing so.
(D Tips
Where snow chains are mandatory oncer­
tain roads, this normally also applies to
vehicles with all wheel drive.
Wheel bolts
Wheel bolts must always be tightened to the
corr ect torque.
The design of wheel bolts is matched to the
factory installed rims. If different rims are fit­
ted, the correct wheel bolts with the right
length and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
secu rely and that the b rake system functions
correctly . In certain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same model ¢
page 285.
A WARNING "--
Improperly tightened or maintained wheel
bolts can become loose causing loss of
control, a collision and serious personal in ­
jury .
- Always keep the wheel bolts and the
threads in the wheel hubs clean so the
wheel bolts can turn easily and be prop­ erly tightened.
- Never grease or oil the wheel bolts and
the threads in the wheel hubs. They can become loose while driving if greased or
oiled, even if tightened to the specified
torque.
- Only use wheel bolts that belong to the
rim being installed .
- Never use different wheels bolts on your
vehicle.
- Always maintain the correct tightening
torque for the wheel bolts to reduce the
risk of a wheel loss. If the tightening tor­
que of the wheel bolts is too low, they
can loosen and come out when the vehi­
cle is moving. If the tightening torque is
too high, the wheel bolts and threads
can be damaged and the wheel can be­
come loose.
Q) Note
The specified torque for the wheel bolts is
90 ft lbs. (120 Nm) with a tolerance of
± 7,4 ft lbs. (± 10 Nm). Torque wheel bolts
diagonally . After changing a wheel, the
torque must be checked as soon as possi ­
ble with a torque wrench -preferably by an
authorized Audi dealer or qualified work­
shop .
Low aspect ratio tires
Your Audi is factory-equipped with low aspect
ratio tires. These tires have been thoroughly
tested and been selected specifically for your model for their superb performance, road feel ..,.