2011 AUDI S8 fuel consumption

24 Instruments and warning /indicator lights
to ice on the ro ad ¢ & . If the vehicle is
stationary, o r if you are dr iving at a very
l ow speed, the tempe rat ure shown in the
display might be slightly higher t han the
actua l outside temperature. This is
ca used by the heat being rad iated from
t h e eng ine.
- You can se lect the un its used for temper ­
atu re, speed and other measurements in
the MMI.
- Fo r information on the audio/video and
nav iga tion* functions, refer to the sepa­
r ate MMI owner's manual.
Operation
The driver information system is operated us­
ing the buttons on the multifunction steering
wheel.
ffi
------,±.
~
Fig. 6 Multifunct ion steer ing wheel: ope rat ing the driv­
e r info rmation system
Fi g. 7 Driver infor mat ion syste m: opening t he veh icle
functio ns me nu
Operating concept
.. Swi tch the ign itio n on.
.. To switch between the tabs, press the ro cker
swi tch @ to the left o r right¢
fig. 6.
.. To access additional in format io n be low or
above, rotate the thumbw heel @ dow n or
up. ..
To confirm a selec tion, press the thumb ­
wheel @.
Accessing Vehicle functions
.. Sele ct the first tab with the ro cke r swit ch
@.
.. Press the button 1::::L Th e Vehicle function s
menu appears¢ fig . 7.
.. To select a menu item, turn and press t he
thumbwhee l@ .
Resetting values to zero
.. Sele ct the on-board computer / Efficiency
program
menu item in the Vehicle func­
tions
men u.
.. You can now select between the long-term
memory and short-term memory.
.. To reset the values in a memory, press and
hold the thumbw heel @ for one second.
The last function selected d isp lays when you
switch the ignition on .
On-board computer
You can ca ll up the followi ng i nformation in
the on -board computer:
- Date
- Dr iv ing t ime (h) from the short-term memo-
ry
- Average consumption in MPG ( l/100 km)
from the short-te rm memory
- Average speed i n mph (km/h) from the
short-te rm memory
- Distance driven in miles (km) from the
short-term memory
- Current fuel consumption in MPG ( l/100
km)
- Short-term memory overview
- Long-te rm memory ove rview
T he short-te rm memory collects dr iv ing in for­
mation from the time the ignition is switched
on unti l it is switched off. If you continue driv­
ing within two ho urs after switch ing the ign i­
tion off, the new values are incl uded when cal­
cu lating the cu rrent trip information .
Unli ke the short-term memory, the long-term
memo ry is not erased automatically. Yo u can .,..

Instruments and warning/indicator lights 25
select the time period for evaluating trip in­
formation yourself.
For some vehicle functions, you can access the
trip information from the temporary memory
in the line(D¢page23,
fig. 5.
Efficiency program*
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 sh ift recommendat ions. ¢
page 25. Fuel
economy messages ¢
page 25 provide tips
for efficient driving . The efficiency program
uses distance and consumption data from trip
computer 1 .
To display the efficiency program, call up
Ve­
hicle functions and select the menu option
Efficiency program. If the data are deleted in
the efficiency program , those values are also
reset in trip computer .
@ Tips
-All stored values will be lost if the vehi­
cle battery is disconnected.
- Fuel consumptions (average and cur­ rent), range and speed are displayed in
metric units on Canadian models.
Other equipment
Applies to vehicles: with efficiency program
Fig. 8 Tri p comp uter: other equ ipment
Requirement : The efficiency program must be
displayed
¢ page 25 .
.,. Turn the thumbwheel until the other equip­
ment appears in the display. Other equipment that is currently affecting
fuel consumption is listed in the efficiency program. The display shows up to three other
items of equipment @. The equipment using
the most fuel is listed first . If more than three
items using fuel are switched on, the equip ­
ment that is currently using the most fuel is
displayed .
A scale @also shows the current total con­
sumption of all other equipment.
Fuel economy messages
App lies to vehicles: with efficiency program
Fig. 9 Display : example o f a fu el econo my m essa ge
Fuel economy messages are displayed when
fuel consumption is increased by certain con­
ditions. If you follow these fuel economy mes­
sages, you can reduce your vehicle's consump­
tion of fuel. The messages appear automati ­
cally and are only displayed in the efficiency
program. The fuel economy messages turn off
automatically after a certain period of time .
.,. To turn an economy message off immediate ­
ly after it appears, press any button on the
multifunction steering wheel.
@ Tips
- Once you have turned a fuel economy
message off, it will only appear again af­
ter you turn the ignition on again.
- The fuel economy messages are not dis­
played in every instance, but rather in in­
tervals
over a period of time.

Driving through water
on roads
Note the following to avoid vehicle damage
when driving through water, for example on
flooded roads:
- The water must not be any higher than the
bottom of the vehicle body.
- Do not drive faster than wa lking speed.
A WARNING
After driving through water, mud, slush,
etc., the brakes may be slow to take effect
because of wet brake rotors and pads. Dry
the brakes first by braking carefully to re­
store the full b raking effect.
([) Note
Vehicle components such as the engine,
transmiss ion, suspension or electrical sys­
tem can be severely damaged by driving
through water.
- Check the depth of the water before dr iv­
i ng through it.
- Do not stop the veh icle, drive in reverse
or switch the engine off when driving
through water .
- Keep in mind that oncoming vehicles
may create waves that raise the water
level and make it too deep for your vehi­
cle to drive th rough safely.
- Avoid dr iving through sa lt water because
i t can cause corrosion.
Dri vin g and en vironm ent 199
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, environmenta l impact, and
wear on your eng ine, brakes and tires largely
depend on three factors:
- your personal d riving style
- operating conditions
- technical limitat ions
If you ant ic ipate what you need to do next and
drive economically, you can easily cut your
fuel consumpt ion by 10-15 percent . This sec­
tion w ill give you some tips on how you can
help the environment and your pocketbook.
@ Tips
The consumption estimates as published by ENVIRONMENTAL PROTEC TION AGENCY
( E PA) and Tra nspo rt Canada may not corre­
spond to your actual consump tion 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.
.,. Avoid unnecessary accelerating and braking.
Vehicles use the most f uel when they are ac­
ce le rating. If you ant icipate what is going to
happen next, you will need to brake less and,
thus, acce lerate less . Let the vehicle coast
whenever possible - for examp le when you see
that the next traff ic light is red.
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200 Driving and en vi ro nm ent
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage .
"'Try and keep well below your car 's maximum
speed.
Accelerating gently reduces fuel consump­
tion, engine wear, and does not disturb the
environment. F ue l consumption, exhaust em issions and en ­
gine noise increase disproportionately at high
speeds. If you drive at approximately three
quarters of top speed, fue l consumption will
be reduced by one half. Never drive faster
than the posted speed limit and weather con­
d itions permit .
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel.
"'Shut the engine off when you are not driving
the vehicle .
"'Do not warm up the veh icle by letting the
engine run at idle .
It makes sense to shut
off the e ngine in traff ic
jams, when waiting for trains to pass at ra il­
road crossings , or at traff ic lights that have
long wa its on red. Turning the engine
off fo r
just
30-40 seconds saves more fue l than is
burned s tarting the eng ine again .
It takes a long time for the engine to warm up
fully when it is running at idle . Howeve r, wear
and noxious 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 .
([) Note
Do not leave engine idling unattended af ­
ter starting . If warning lights should 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 ve hicle serviced at reg ular inter -
vals.
By having your veh icle regu larly serviced by an
Audi dealer he lps to ensure that it runs p rop­
erly and economically. The condition of your
vehicle not only affects its sa fety and ability to
hold its value, it also affects
fuel c onsump­
tion .
Check your oil e ach time you fill your t ank .
The amount of oil used is related to engine
load and speed .
It is normal for the oil consumption of a new
engine to reach its lowest value after a certa in
mileage has been driven.
You must drive your veh icle about 3,000 m iles
(5,000 kilometers) before you can properly
assess oil consumpt ion.
This also app lies to fue l consumption and en­
gine output.
(D Note
- Have your vehicle maintained proper ly
and in accordance with the service rec ­
ommendations in your Warranty
& Main­
tenance booklet. Lack of proper ma inte­
nance as well as improper use of the ve­
hicle will impair the function of the
em iss ion contro l system and cou ld lead
to damage.
- Do not alter or remove any component of
the Emission Control Sys tem unless ap­
proved by the manufacture r.
- Do not alte r or remove any device, such
as heat sh ie lds, switches, ign it ion w ires,
valves, which are designed to protec t
your vehicle's Emission Control System
and other impo rtant vehicle compo­
nents .

Fewer short trips
Fuel consumption will always be relatively
high on short trips.
11-Try to avoid driving short distances with a
cold eng ine.
The engine and catalyt ic converte r have to
reac h their optimal
operating temperature to
reduce fuel consumption and noxi ous emis­
sions effective ly .
Just afte r starting, a cold engine in a mid-size
car only achieves a f uel econ omy of 6-8 miles
per gallo n (30-40 l/100 km). Afte r about a
ha lf a m ile, fuel economy climbs to 12 mpg
(20 l/100 km). Afte r abo ut
2 .5 m iles ( 4 km),
the eng ine is a t its proper ope rat ing temp era­
ture a nd fue l economy has rea ched a no rm al
l eve l. So you can see th at you sho uld a void
short tr ips w heneve r possib le .
The
outside temperature is also critical in this
r egard. Your car co nsum es more fuel in the
w in ter th an in the summer.
Driving and environment 201
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226 Check ing and filling
temperatures stay below freezing point for
long periods.
Detergent add it ives in the o il 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.
Dam age or ma lf u ncti ons du e to lack of
m ainten ance
It
is essential that you change your oil at the
recommended in tervals using only engine o il
that complies with Audi oi l standard
VW 502 00. You r 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 book let . 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 maintenance
was performed in a t imely 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, a ll in­
ternal comb ustion eng ines consume a certa in
amount of oil. O il consumption varies from
engine to engine and may change significantly
over the life of the engine. Typica lly, engines
with a specif ied break-in period (see
¢
page 197) consume more oil during the
break-in period than they consume after oil
consumption has stabilized.
Under norma l conditions, the rate of oil con­
sumpt ion depends on the quality and viscosity
of the oil, the RPM (revolutions per m inute) 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 ox ida­
tion level of the oi l. 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 a ll 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
in the instrument cluster
m lights up, yo u
shou ld check the oil leve l as soon as possib le
¢
page 22 7. Top off the oil at your earliest
convenience ¢
page 22 7.
A WARNING '"---
Before you check anything in the engine
compartment, always read and heed all
WARNINGS¢
A in Working in the engine
comportment on page 222.
(D Note
Driving w ith an insufficient o il level is like­
ly to cause severe damage to the engine .
(D Tips
-The oil pressu re warn ing display. is
not an indicator of the oil le vel. Do not
r el y on it . In ste ad, ch eck the oil lev el in
y our engin e at regular inter vals , pref ­
erably ea ch time you r efu el, and alway s
before going on a long trip .
-If you have t he impression yo ur engine
cons umes ex cessive amoun ts of o il, we
recommend that you consu lt your Aud i
dea ler to have the cause of your concern
properly diagnosed. Keep in mind that
the accurate meas urement of oi l con­
sumption requ ires great care and may
take some t ime. Your Audi dea ler has in­
structions about how to measure oil con­
sumption accurately.
-

246 Tires and wheels
valve stem caps on all wheels are secure ly
mounted on the valve .
@ For the sake of the environment
Underinflated tires will also increase the
fue l consumption.
Tires and vehicle load limits
There are limits to the amount of load or
weight that any vehicle and any tire can carry.
A vehicle that is overloaded will not handle
well and is more difficult 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 failure, in­
cluding a blowout and sudden deflation that
can cause the vehicle to crash.
Your safety and that of your passengers also
depends on making sure that load limits are
not exceeded. Vehicle load includes everybody
and everyth ing in and on the vehicle. These
l oad limits are techn ica lly referred to as the
vehicle's
Gross Vehicle Weight Rating
("GVWR").
The "GVWR" includes the we ight of the basic
vehicle, all factory installed accessories, a full
tank of fuel , oil, coo lant and other fluids plus
maximum load. The maximum load includes
the number of passengers that the vehicle is
intended to carry ("seating capacity") with an
assumed weight of 150 lbs (68 kg) for each
passenger at a des ignated seat ing pos ition
and the tota l we ight of any luggage in the ve­
hicle. If you tow a trailer, the weight of the
trailer hitch and the tongue weight of the
l oaded trailer must be included as part of the
vehicle load.
The
Gross Axle Weight Rating ("GAWR") is
the maximum load that can be applied at each
of the vehicle's two axles.
The G ross Vehicle Weight Rating and the
Gross Axle Weight Rating are listed on the
safety compliance sticker labe l located on the
driver's side B-p illar. You r A udi has 5 seat ing
positions, 2 in the front and 3 in the rear for
total seating capacity of 5. Vehicles with pow- er individual rear seats* have
4 seating posi ­
tions,
2 in the front and 2 in the rear for total
seat ing capac ity of
4. Each seating position
has a safety belt¢
page 137, Safety belts.
The fact that there is an upper limit to your
vehicle's Gross Vehicle Weight Rating means
that the total weight of whatever is being car­
ried in the vehicle (including the weight of a
trailer hitch and the tongue weight of the
loaded trailer) is lim ited . The more passen­
gers in the vehicle or passengers who are
heavier than the standard we ights assumed
mean that less we ight can be carried as lug­
gage.
The tire pressure label on your Audi also lists
the max imum combined weight of a ll of the
occupants and luggage or other cargo that
the vehicle can carry. For the location of the
label¢
page 242, fig. 184.
A WARNING ,___
Overloading a vehicle can cause loss of ve­
h icl e contro l, a crash or other accident, se­
rious personal injury, and even death.
- Carrying more weight than your vehicle
was designed to carry will prevent the
vehicle from handling properly and in­
crease the risk of the loss of vehicle con­
trol.
- The brakes on a vehicle that has been
overloaded may not be able to stop the
veh icle with in a safe distance.
- Tires on a vehicle that has been overload­
ed can fail suddenly, including a blowout
and sudden deflation, causing loss of
control and a crash.
- Always make sure that the total load be­
ing transported -including the weight of
a trailer hitch and the tongue we ight of a
loaded trailer -does not make the vehi­
cle heavier than the vehicle's G ross Vehi­
cle Weight Rating.

How do I properly install a child safety
seat in my vehicle? .............. .. . 172
Infant seats . . . . . . . . . . . . . . . . . . . . . . 17 4
Installing .. ............. .... .. ... 178
Installing a child restraint us in g the
LATCH system ..................... 184
LATCH system .... .. ... ... .. .. .. .. . 184
Lower anchorages ............... .. 182
Mounting and releasing the anchorage
hook .... .. ................. .. ... 184
Safety instructions ............ .. .. . 172
Clean ing and protection ......... .. .. . 206
A lcantara (synthet ic suede) .......... 215
Cooler ... .. ................. .. ... 216
Engine compartment ............... 216
Exhaust tail pipes ............ ... .. . 212
Fabrics and fabric coverings . ... .. .. . 212
Instrument panel ............ ... .. . 213
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Leather . . . . . . . . . . . . . . . . . . . . . . . . . . 214
MMI display/controls ............... 212
Plastic and vinyl ................. .. 210
Plastic parts ..... .. ... ... .. .. .. .. . 213
Safety belts . . . . . . . . . . . . . . . . . . . . . . 216
tr im strips . ............. .. .. .. .. . 210
Trim strips . ............. .... .. ... 209
Climate controls . . . . . . . . . . . . . . . . . . . . . 7 4
Clock ....... .. ................ ..... 26
Closing Panoramic sunroof ........ .. .. .. .. .. 41
Sliding/tilting sunroof ............... 40
Sun shade (panoramic sunroof) ... .. .. 42
Cold tire inflation pressure ... .. .. .. .. . 242
Coming home ............. .... .. .. .. 45
Compact spare tire .................. 261
Compartments .... .. ... ... .. .. .. .. .. 70
Compass in the mirror ......... ... .. .. 52
Compliance .. .. ........... .. .. .. ... 286
Consumer Information . . . . . . . . . . 135, 283
Consumption (fuel) . . . . . . . . . . . . . . . . . . 24
Contacting NHTSA .................. 135
Convenience key .............. ... .... 33
Starting the engine ................. 79
Stopping the engine (START ENGINE
STOP button) . . . . . . . . . . . . . . . . . . . . . . 80
Switching the ignition on ............ 79
Unlocking and locking vehicle ........ . 33
Index 289
Convertib le child safety seats
Convertible locking retractor 17S
Activating . .. .. .. ................. 180
Deact ivating . .. .. .... ........... .. 181
Using to secure a child safety seat 1.78, 180
Coolant
refer to Engine coolant ............. 229
Cooler ....... .. .. .... ............. . 72
Cleaning .. .. .. .. .. ............... 216
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 72
Cooling mode (automatic climate control) 75
Cornering light ........... .......... 106
Cruise control Changing speed .. .................. 84
Presetting your speed ............... 85
Switching off .. .. .. . .. ... .... ..... . 85
Switching on . . . . . . . . . . . . . . . . . . . . . . . 84
Warning/ind icator lights ............ . 22
(upholder .. .. .. .. ................. . 70
D
Data .............................. 282
Data recorder . .. .. .. .. ........... .. 190
Date display .. .. .. ... ... ...... ..... . 26
Daytime running lights .............. .. 43
Declaration of compliance Adaptive cruise control ............. 286
Audi s ide ass ist .. ............. .... 286
Cell phone package . . . . . . . . . . . . . . . . 286
Convenience key .. .. .............. . 286
Electronic immobilizer .............. 286
Homelink ® universal remote control .. 286
Remote control key ... ......... .. .. 286
Tire pressure monitoring system ..... 286
DEF What does this mean when it appears in
the trip odometer display? ........... 26
Defective light bulb warning ........... 21
Defrosting (windows) .. .. ... .... ..... . 76
Deluxe automatic climate control ..... .. 75
Determining correct load limit ........ 247
Digital compass . . . . . . . . . . . . . . . . . . . . . 52
Dimensions ....... .. . .............. 280
Dimming the rearview mirror .......... 51
Distance ....... .... ................ 24
Door/rear lid warning ... ............. . 23
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