2014 AUDI S4 fuel consumption

Trip computer
Introduction
Applies to vehicles: with trip computer
The trip computer gives you information on
current and average fuel mileage, average
speed, fuel range and driving time .
Fig. 9 Trip comp uter d isp lay : Ave rage fuel mileage
The following information is continuously
eva luated by the trip computer and can be dis­
played sequentia lly in the instrument cluster
disp lay:
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 travel on the cur­
rent tank of fuel and with the same driving
style. The display changes in increments of
5 miles (10 km).
The cruising range is calcu lated 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 disp lay.
You can use this display to adjust your driving
technique to achieve a desired mileage.
Driver information display 25
Fuel consumption is recalculated at intervals
of 33 yards (30 meters). This display switches
to gallons/hour (liters/hour) when the veh icle
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 yo u have been driving
s inc e you last reset the memory appears in
this display.
Distance
The distance that has been covered since the
last time 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
App lies to vehicles: wi th trip computer
The trip computer is equipped with two fully
automatic memories as well as an efficiency
program*.
Fig. 10 T rip comput er dis play: memory lev el 1
You can switch between the trip computer 1
and 2 and the efficiency program* by pressing
the
I RESET I button @c::> page 26, fig. 11 .
You can tell which memory leve l is currently
active by the number or the sign in the display .,..

The values in the single-t rip or the total-trip
memory can a ll be reset to zero at the same
time under
Reset in the menu .
I n addition, you can determine what informa­
tion from the trip computer should be shown
in the instrument cluster display. If one of the
p ieces of driver information is turned
Off , that
driver information w ill not be shown in the
display. The information will continue to be
calculated by the trip computer and can be
turned back
On at any t ime.
(D Tips
- This function is not avai lab le on all
vehicles.
- The driving information in the efficiency
program is also reset to zero with the
s ingle-trip memory.
Gearshift Indicator
A ppl ies to vehicles: with manu al transmis sion a nd gea r·
shi ft indica tor
This indicator con help conserve fuel.
~~~------------~~ ~.;;-
Fig. 12 Display: Gea rs hi ft indicator
m ~ ~ a, a,
In order to become familiar with the gearshift
indictor, at first just drive the way you are
used to.
If the current gear -and the driving
situa tion -is not the best one for conserving
fuel, then the indicator will display the recom­
mended gear. The display shows the current
gear and the gear that is recommended
¢fig. 12.
-Upshifting The display will light up to the
right of the gear currently selected if it is
recommending a higher gear.
Driver information display 2 7
- Downshifting:
The display will light up to
the
left of the gear currently se lected if it is
recommending a lower gear.
Sometimes the indicator will recommend
skipping a gear (3
> 5).
If there is no gearshift recommendation, then
just drive in the appropriate gear for conserv­
ing fuel.
(D Note
This indicator can help you conserve fuel.
This indicator is not meant to show you
which gear you should always be in in all
driving situations . Sometimes, in situa­
tions such as passing, driving thro ugh
mountains or when towing a trailer, there
won't be any gearshift recommendation.
(D Tips
The display does not light up when the
clutch pedal is be ing depressed.
Efficiency program
Description
App lies to vehic les: wi th trip co mp uter with efficiency
prog ram
Fig. 13 Display: efficiency program
.. Press the I RESET I button@¢ page 26,
fig. 11 repeatedly until the efficiency pro­
gram appears in the display.
The efficiency program can help you to use
less fuel. It evaluates driving information in
reference to fuel consumption and shows oth­
er equipment influencing consumption as well
as shift recommendations. Fuel economy ...,

Fuel economy messages
Applies to vehicles: with trip computer w ith efficiency
program
Fig . 16 Display: fuel eco nomy me ssage
F ue l economy messages are disp layed when
fuel consumption is increased by certa in con­
ditions. If you follow th ese fu el economy mes­
sages, you can reduce your vehicle's consump ­
tion of fuel. The messages appear automati­
cally and are only displayed in the eff ic iency
program . The fuel economy messages turn off
automatically after a certain period of time .
• To turn a fuel economy message off immedi­
ately after it appears, pres s the !R ES ETI but­
ton
~ page 26, fig . 11 @ , or
• Press the function selection switch
¢ page 26, fig. 11 @ .
(D Tips
- Once you have turned a fuel economy
message off, it will only appear again af­
te r you turn the ignition on aga in.
- The fuel economy messages are not dis­
played in every instance, but rathe r in in ­
te rva ls over a period of time .
Driver inform ation di spl ay 29
Service interval display
The service interval display reminds you when
your next service is due .
Fig. 17 Disp lay: Se rvice i nterval d is pl ay
The schedule for the next oi l change or inspec­
tion is ca lculated automatica lly and disp layed
accord ingly. The d isp lay works in two stages:
Service reminde r
30 days before the next service is due, a serv­
ice reminder appears in the display whe n you
turn on the ignition ¢
fig. 17 .
After about S seconds the display switches
back to normal. The distance and time re­
main ing are updated each time the ignit ion is
tu rned on unt il th e date due for service is
reached.
Service due
When the due da te for service is reached , the
message
Ser vice due! appears in the in stru ­
ment cluster immed iately after you turn on
the ignit ion. Add it iona lly, a warning tone
sou nds . After about S seconds the disp lay
switches bac k to normal.
Calling up the service schedule s
If or when an oil change or inspection is due,
can be shown in the rad io or
MMI* disp lay by
selecting the service interva l display in the car
menu. Select !CAR ! func tion button>
Servic e
interval d ispl ay
o r! CAR ! function button> C ar
sys te m s*
control button > Serv icing &
check s.

-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 225.
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 limitat ions
If you anticipate what you need to do next and
drive economically, you can easily cut your
f u el cons umption by 10-15 percent. This sec-
Driving and environment 197
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
ditions, 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 ant icipate 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 lerat ing gently red uces fue l cons ump­
tion, eng ine wear, and does not disturb the
environment .
Fuel consumption, exhaust emiss ions and en­
gine noise increase disproportionately at high
speeds. If you drive at approximately three quarters of top speed, fuel consumption w ill
be reduced by one half. Never drive faster
than the posted speed l imit and weather con­
ditions permi t.
•
•

198 Driving and en vironm ent
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel .
.,. Shut the engine off when you are not dr iving
the vehicle.
.,. Do not warm up the vehicle by letting the
engine run at idle .
It makes sense to shut
off the engine in traffic
jams, when waiting for trains to pass at ra il­
road crossings, or at traff ic lights that have
l ong wa its on red . Turning the engine
off fo r
just 30-40 seconds saves more fue l than is
burned s tarti ng the eng ine again .
It takes a long time for the engine to warm up
fu lly when it is running at idle . Howeve r, wear
and nox ious em issions are especially high
when the engine is warming up. So you should
drive away as soon as you start the engine and
avoid running at high rpms while the engine is
still warming up .
(D Note
Do not leave engine idling unattended af­
ter starting . If warning lights shou ld come
on to indicate improper operation, they
wou ld go unheeded. Extended idling also
produces heat, which cou ld result in over­
heating or other damage to the vehicle or
other property .
Regular maintenance
A badly tuned engine unnecessarily wastes a
lot of fuel .
... Have your vehicle serviced at regular inter-
vals.
By having your vehicle regularly serviced by an
authorized Audi dealer he lps to ensure that it
runs properly and economically . The condition
of your vehicle not only affects its safety and
ab ility to hold its value, it also affects
fuel
consumpt ion .
Check you r oil ea ch time you fill you r tank.
The amount o f oi l used is re lated to engine
load and speed.
It i s normal fo r the oil consump tion of a new
engine to reach its lowest value after a certa in
mileage has been d riven.
You must drive your veh icle about 3,000 m iles
(S,000 kilometers) before you can properly
assess oil consumpt ion.
T his also app lies to fue l consumption and en­
gine o utput.
(D Note
- Have your veh icle ma inta ined properly
and in acco rdance with the service rec­
ommendations in your Wa rranty
& Main­
t enance boo klet . Lack of p roper ma inte­
nance as well as improper use of the ve­
hicle will impair the function of the
emission contro l system and cou ld lead
to damage.
- Do not alter or remove any component of
the Emission Control System unless ap­
proved by the manufacturer.
-Do not alter or remove any device, such
as heat sh ie lds, switches, ign it ion w ires,
valves, which are designed to protect
your vehicle's Emission Control System and other important vehicle compo­
nents.
Fewer short trips
Fuel consumption will always be relatively
high on short trips .
.,. Try to avoid dr iv ing short distances w ith a
cold engine .
T he engine and cata lytic converter have to
reach their opt imal
operat ing temperature to
reduce fuel consumpt ion and nox ious emis­
s ions effectively .
Just after starting, a co ld eng ine in a mid-s ize
car only achieves a fuel economy of 6-8 m iles
per gallon (30-40 l/100 km). After about a
half a mile, fuel economy cl imbs to 12 mpg
(20 l/100 km) . After about
2 .5 miles (4 km), ll>

210 Fuel supply and filling your fuel tank
Seasonally adjusted gasoline
Many gasoline grades are blended to perform
especially well for winter or summer driving. During seasonal change-over, we suggest that
you fill up at busy gas stations where the sea­
sonal adjustment is more likely to be made in
time.
CD Note
- Fuels containing a high percentage of
ethanol such as ESO and E85 may only be used in vehicles with flexible fuel en­
gines. Using high ethanol fuel in vehicles not equipped with flexible fuel engines
can cause severe engine damage.
- Methanol fuels which do not meet these
requirements may cause corrosion and
damage to plastic and rubber compo­ nents in the fuel system.
- Do not use fuels that fail to meet the
specified criteria in this chapter .
- If you are unable to determine whether
or not a particular fuel blend meets the
specifications, ask your service station or
its fuel supplier.
- Do not use fuel for which the contents
cannot be identified.
- Fuel system damage and performance
problems resulting from the use of fuels
different from those specified are not
the responsibility of Audi and are not
covered under the New Vehicle or the
Emission Control System Warranties.
- If you experience a loss of fuel economy
or driveability and performance prob­
lems due to the use of one of these fuel
blends, we recommend that you switch
to unblended fuel.
Ethanol fuel (Bio -ethanol)
App lies to vehicles: with flexible fuel e ngi ne
You con recognize vehicles with a flexible fuel
engine by looking at the label on the inside of the fuel filler flap.
Vehicles with flexible fuel engines may be op­
erated with bio-ethanol fuels such as E85 (8S% ethanol and
15% gasoline) or with un­
leaded gasoline (91 AKI/ROZ 95). The vehicle
may also be operated with a mixture of these
fuels.
Your fuel consumption will increase when us­
ing bio-ethanol fuels due to the lower amount
of energy contained per unit volume in etha­
nol.
Warming up the flexible fuel engine in low temperatures
Due to the chemical composition of bio-etha­
nol, a certain amount of fuel ends up in the
engine oil when driving short distances in very
low temperatures . This fuel evaporates again
when the engine is warmed up.
II Please warm up engine.
If the driver message appears in the instru­
ment cluster display, drive with a warm en­
gine to reduce the oil level.
CD Note
- Never fill with methanol or with a higher
percentage of bio-ethanol than 85%
(E85). A higher percentage of bio-etha­
nol in the fuel can cause damage to the
engine or to the fuel system.
- If you use only E85, it is recommended
to fill the fuel tank completely with un­
leaded premium grade gasoline every
5,000 miles.
- If you experience starting, rough idle or
hesitation driveability problems, fill the
fuel tank completely with unleaded pre­ mium grade gasoline and drive it nor­
mally until the gasoline is used. See your
authorized Audi dealer if the problem
persists.
- Inform your authorized Audi dealer that
you are operating or have operated the
vehicle with E85.
- Read and follow the information and tips
about gasoline
c::> page 209. .,.

218 Checking and filling
temperatures stay below freezing point for long periods.
Detergent additives in the oil w il l make fresh
oil look dark after the eng ine has been run­
ning for a short time . This is norma l and is not
a reason to change the oi l more often than
recommended.
Damage or malfun ctions due to lack of
maintenance
It is essential that you change your oil at the
recommended intervals using only engine o il
that complies with Audi oi l standard
VW 502 00. Your Limited New Vehicle War­
ranty does not cover damage or malfunctions
due to fail ure to fo llow recommended mainte­
nance and use requ irements as set forth in
the Audi Owner's Manual and Warranty
&
Maintenance booklet . Your dealer will have to
deny warranty coverage unless you present to
the dea ler proof in the form of Service or Re­
pa ir Orders that all scheduled ma intenance
was performed in a timely manner.
Eng ine oil consumption
The engine in your vehicle depends on an ade­
quate amount of oil to lubricate and cool all
of its moving parts.
In order to provide effective lubrication and
cool ing of internal engine components, all in­
ternal combustion eng ines consume a certain
amount of oil. O il consumption varies from
engine to engine and may change significantly
over the life of the engine. Typically, engines
with a specif ied break-in period (see
¢
page 195) consume more oil during the
break-in period than they consume after oil
consumption has stabilized.
Under normal conditions, the rate of oil con­
sumption depends on the quality and viscosity
of the oil, the RPM (revolutions per minute) at
which the engine is operated, the ambient
temperature and road condit ions . Further fac­
tors are the amount of oil d ilution from water
condensat ion or fuel residue and the oxida­
tion level of the oil. As any engine is subject to wear as mi
leage builds up, the oil consump­
tion may increase over time until replacement
of worn components may become necessary.
With all these variab les coming into play, no
standard rate of oil consumption can be es­
tablished or specified. There is no alternative
to regu lar and frequent check ing of the o il lev ­
el, see
Note .
If the yellow engine oil leve l warning symbo l
Ill in the instrument cluster lights up, you
shou ld check the oil leve l as soon as possib le
¢
page 219. Top off the oil at your earliest
convenience ¢
page 219.
A WARNING '"---
Before you check anythi ng in the engine
compartment, always read and heed all
WARNINGS¢
A in Working in the engine
compartment on page 214.
(D Note
Driving w ith an insufficient o il level is like­
ly to cause severe damage to the engine .
(D Tips
-The oil pressure warning display. is
not an indicator of the oil level. Do not
rely on it. Instead, check the oil level in
your engine at regular intervals, pref­ erably each time you refuel, and always
before going on a long trip.
- If you have the impression your engine
consumes excessive amounts of oil, we
recommend that you consult an author­
ized Audi dealer to have the cause of
your concern properly diagnosed. Keep in
m ind that the accurate measurement of
oil consumption requ ires great care and
may take some time. An authorized Aud i
dea ler has instructions about how to
measure oil consumption accurately.
-

238 Tire s and whee ls
- Adjust the tire pressure to the load you are
carrying.
- Reinsta ll the va lve stem cap on the valve .
When should I ch eck the tire pres sur e?
The correct tire pressure is especially impor­
tant at high speeds. The pressure should
therefore be checked at least once a month
and a lways before starting a journey. Do not
forget to check the tire pressure for the spare
wheel.
When should I adj ust the tire p re ss ures?
Adjust the tire pressure to the load you are
carry ing . After changing a wheel
o r replacing
wheels you have to adjust the tire pressures
on all wheels . In addition, you must then initi­
alize the new tire pressures in the tire pres­
sure monitoring system*~
page 249.
A WARNING
Incorrect tire pressures and/or underinf la­
tion can lead sudden tire failure, loss of
control, collision, ser ious personal injury
or even death.
- When the
RI] warning symbol appears in
the instrument cluster, stop and inspect
the tires .
- Incorrect tire pressure and/or underinfla­
t ion can cause increased t ire wear and
can affect the handling of the veh icle and
stopp ing ability.
- Incorrect tire pressures and/or underin­
flation can also lead to sudden tire fa il­
ure, including a blowout and sudden de­
flation, causing loss of vehicle control.
- The driver is responsible for the correct
t ire pressures fo r all tires on the vehicle .
T he applicable p ressure va lues are locat­
ed on a sticker on the driver's side B-pil ­
lar.
- Only when a ll ti res on the vehicle are fi l­
led to the correct pressure, the tire pres­
sure monitoring system* can work cor­
rect ly.
- The use of incorrect tire pressure values
can lead to accidents or other damage.
Therefore it is essential that the driver observe the specified t
ire pressure values
for the tires and the correct pressures for
the function of the ti re pressure monitor­ing system*.
- Always inflate tires to the recommended
and correct t ire pressure before dr iv ing
off.
- Driving with underinflated tires bend
more, letting them get too hot resulting
in tread separation, sudden tire failure
and loss of control.
- Excessive speed and/overloading can
cause heat build-up, sudden tire failure
and loss of cont rol.
- If the tire pressure is too low or too high,
the t ires will wear prematurely and the
veh icle w ill not handle well.
- If the tire is not flat and you do not have
to change a wh eel immediately, drive at
reduced speed to the nearest service sta­
tion to check the t ire p ressure and add
air as required.
Q) Note
D riving without valve stem caps can cause
damage to the tire valves. To prevent this,
a lways make sure tha t factory insta lled
valve stem caps on all whee ls are sec urely
mounted on the valve.
@ For the sake of the environment
U nderinflated tires w ill also incre ase the
fuel consumption .
Tires and vehicle load limits
There are limits to the amount of load or
weight that any veh icle and any tire can carry.
A vehicle that is over loaded will not handle
well and is more d iff icult to stop. Overloading
can not only lead to loss of vehicle control,
but can also damage important parts of the
vehicle and can lead to sudden tire fa ilure, in­
clud ing a b lowout and sudden deflation tha t
can cause the vehicle to crash.
Your safety and that of your passengers also depends on making sure that load limits are .,..