2016 AUDI A8 fuel consumption

Instruments and indicator lights
- For information on the audio/video and nav­
igation* functions, refer to the separate
MMI owner's manual.
Operation
The driver informotion system is operated using
the buttons on the multifunction steering wheel.
::ii
------ -,~
F ig. 6 Multifunction steering wheel: operating the dr iver
infor mation system
Fig. 7 Instrument cluster: opening the vehicle functions
menu
Operating
.,. Switch on the ignition.
.,. To switch between the tabs, press the rocker
switch @to the left or r ight
c:::> fig. 6.
.,. To access additional information below or
above, turn the thumbwheel@ down or up.
.,. To confirm a selection, press the thumbwheel
®·
Opening the Vehicle functions
.,. Se lect the first tab with the rocker switch@.
.,. Press the
l== I button. The Vehicle functions
menu is displayed c:::> fig. 7.
.,. To se lect a menu item, turn and press the
thumbwheel @.
24
~
Resetting values to zero
.,. In the Vehicle functions menu, select On­
board computer
or Efficien cy program .
.,. You can now select between the long-term
memory and short-term memory .
.,. To reset the values in a memory, press and hold
the thumbwheel @for one second.
The last function selected displays when you
switch the ignition on.
@ Tips
Disconnecting the battery causes all the
memory data to be erased.
On-board computer
Fig. 8 Instrument cluster: fuel consumption display
You can call up the following informat ion in the
on-boa rd computer:
- Date
- Dr iving t ime from the short-term memory
- Average consumption from the short-term
memory
- Average speed from the short-term memory
- Distance driven from the short-term memory
- Current fuel consumption
- Short-term memory overview
- Long-te rm memory
overv iew
The short-term memory collects driving informa­
tion from the time the ignition is switched on un­
ti l it is switched off. If you continue driving with­
i n two hours after switching the ignition off, the
new values are included when calculating the cur-
rent trip information.
II>

Unlike the short-term memory, the long-term
memory is not erased automatically. You can se­
lect the time period for evaluat ing trip informa­
tion yourself.
F or some vehicle functions, you can access driv­
ing information from the short-term memory
consecutively in the line ©~
page 23, fig. 5 by
turning the thumbwheel @.
Fuel consumption
The cu rrent fue l consumption can be shown us­
ing a bar graph¢
fig. 8. The average consump­
tion stored in the short-term memory is also dis­
p layed. If the bar is green, your vehicle is saving
fuel through one of the following functions:
- Recuperation : electrical energy can be stored in
the battery when the vehicle is coasting or driv­
ing downh ill. The bar will move toward 0.
-Cylinder on demand system*: the engine auto­
matically switches four cylinders
(4.0L TFS!) or
six cylinders (6.3L FSI) off when lower power
output is required and other conditions are met . This change is not noticeable to the pas­
sengers. The cylinders will switch on again
when higher power output is needed.
Efficiency program
Applies to: vehicles with efficiency program
Fig. 9 T rip computer: o ther equ ipment
Instruments and indicator lights
Fig. 10 Display: example of a fuel economy message
The efficiency program can help you to use less
fuel.
It shows other equipment influenci ng con­
sumption and fuel economy messages provide
tips for efficient driving. The efficiency program
uses distance and consumption data from trip
computer
1.
To display the efficiency program, call up Vehicle
functions
and select the menu option Efficiency
program.
Other equipment
Other equipment that is current ly affecting fuel
consumption is listed in the view
Consumer. The
display shows up to three other items of equ ip­
ment @¢
fig. 9. The equipment using the most
fuel is listed first. If more than three items using
fuel are switched on, the equipment t hat is cur­
rently using the most fuel is displayed.
A scale @also shows the current total consump­
tion of all other equipment .
Fuel economy messages
Fuel economy messages a re displayed when fuel
consumption is increased by certain conditions
~ fig. 10. If yo u follow these fuel economy mes­
sages, you can reduce your vehicle's consumption
of fuel. The messages appear automatically and are only displayed in the effic iency program. The
fuel economy messages turn off automatically
after a certain period of time.
To turn an economy message off immediately af­
ter it appears, press any button on the multifunc -
tion steering wheel. ..,_
25

-When not in use, to reduce fuel consumption,
wind noise and to guard against th eft.
A WARNING
- Use of an unapproved roof rack or incorrect
mounting of an approved roof rack can
cause the roof rack or the items attached to
it to fall off the roof onto the road.
- Objects falling from the roof of a vehicle can
cause a crash and personal injury.
- Only mount the roof rack on the designated
locations on the roof
c::> fig . 77.
- The roof rack system must be installed ex­
actly according to the instructions provided.
- When driving with a roof rack system,
changes to the center of gravity and wind
resistance can change the vehicle handling
and lead to a collision . Always adapt your
driving and your speed to the current condi­
tions.
@ Note
- Your vehicle warranty does not cover any
damages to the vehicle caused by using roof
racks or mounting structures not approved
by Audi for your vehicle. The same applies to
damage resulting from incorrect roof rack installation .
-Always check the roof rack mountings and
hardware before each trip and during a trip
to make sure everything is securely tight­
ened. If necessary, retighten the mountings
and check the entire system from time to
time.
- After mounting a roof rack system, or when
you transport objects on the roof of your ve­ hicle, the height of the vehicle is naturally
increased. Be careful when driving under
low bridges or in parking garages for exam­
ple. This could cause damage to the load
and even the vehicle itself .
- Make sure the open rear lid and the sun­
roof* do not come into contact with the roof
rack .
Seats and storage
Loading the roof rack
Always distribute loads evenly. Make sure any­
thing on the roof rack is securely tied down .
.,. Always dist ribute the loads on the roof rack
evenly.
.,. Always attach items to the roof rack securely
before you drive off .
The maximum permissible roof weight is
220 lb
(100
kg) . The roof weight is the total of the
weight of the roof rack, the attachments and the
cargo you are carrying . You must also not exceed
the maximum load weight for the roof rack you
are using.
When using a roof rack system which has a lower
load carrying capacity, you must not use up the
total maximum permissible load carrying capaci­
ty specified above. Instead, you should load the
roof rack system only to the maximum capacity
specified by the manufacturer of the roof rack
system.
.&_ WARNING
=
Weak, damaged or improper straps used to
secure items to the roof rack can fail during
hard braking or in a collision and cause seri­
ous personal injury .
- Make sure the roof rack is installed exactly
as specified above
c::> page 70 .
-Always use suitable mounting straps for se­
curing items to the roof rack to help prevent
items from shifting or flying forward.
- Items on the roof rack must always be se­
curely mounted.
- The use of a roof rack can negatively affect
the way a vehicle handles . Cargo that is
large, heavy, bulky, long or flat will have a
greater negative influence on the vehicle's
aerodynamics, center of gravity and overall handling. Always drive slowly, avoid sudden
braking and maneuvers when transporting
cargo on the roof of your vehicle.
- Never exceed the maximum permissible
load carrying capacity of the roof of your ve­
hicle, the permissible axle weights and the
permissible total weight of your vehicle
-
c::> page 277, Weights. ~
71

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 bot­
tom 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 brak ing carefully to restore the full
brak ing effect.
([) Note
-Vehicle components such as the engine,
transm ission, suspension or electrical sys ­
tem can be severely damaged by driving
th rough water.
- Always switch off the Sta rt-Stop-System*
whe n driving through water¢
page 85 .
(D Tips
-Check the depth of the water before driving
through it.
- Do not stop the veh icle, dr ive in reverse or
switch the eng ine off when dr iving through
wa ter .
- Keep in mind that oncoming ve hicles may
create waves that raise the water level and
make it too deep for your vehicle to drive
th rough safely.
- Avo id driving through salt water because it
can cause corrosion.
Driving and the envir onment
Economical and environ­
mentally-friendly driving
General
Your personal style of driving will determine the
economy of your vehicle, as well as exhaust and
nois e levels .
Fuel economy, e nv ir onmental impact, and wear
o n your eng ine, brakes and tires large ly depend
on three factors:
- your personal driving style
- operat ing cond itions
- technical limitations
If you anticipate what you need to do next and
drive economically, you can easily cut your fuel
consumption by 10-15 percent. Th is section will
give you some tips on how you can help the envi­
ronment and your pocketbook .
(D Tips
The consumption estimates as published by
ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the
r oad, which w ill vary depending upon vehicle
l oad and speed, road and weather conditions,
trip length , etc.
Drive smoothly and keep a lookout ahead
Vehicles use the most fuel when they are acceler­
ating.
.,. Avoid unnecessary accelerat ing and braking .
Vehicles use the most fuel when they are acceler­ at ing . If you anticipate what is going to happen
next, you w ill need to brake less and, thus, accel­
erate less. Let the vehicle coast whenever possi­
ble - for example when you see that the next traf­
fic lig ht is red.
199

Driving and th e en vironm ent
Avoid full throttle
Driving at moderate speeds saves fuel and im­
proves your mileage .
.,. Try and keep well below your car's maximum
speed .
Accelerating gent ly reduces fue l consumption,
engine wear, and does not disturb the environ­ ment.
Fue l consumption, exhaust emissions and engine
noise increase d isproportionately 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 limit and weather conditions permit.
Reducing unnecessary idling
Even when your car is just idling it burns up fuel.
.,. Shut the engine off when you are not driv ing
the vehicle.
.,. Do not warm up the vehicle by letting the en-
gine run at idle .
The idling phase is automatically reduced for
veh icles with the Start-Stop-System*. It is effi­
cient to switch off the eng ine in vehicles without
the Start -Stop -System when stopped at ra ilroad
crossings and long red lights . Turning the engine
off for just 30-40 seconds saves more fuel than is bu rned by starting the engine aga in.
It takes a long t ime for the engine to warm up
fu lly when it is running at idle . However, wear
and noxio us em iss ions are espec ially high when
the engine is wa rm ing up. So you sho uld drive
away as soon as you start the engine a nd avoid
running at high rpms while the engine is still
warming up.
(D Note
Do not leave engine idling unattended a fter
starting . If warn ing lights should come on to
indicate improper operation, they wou ld go
unheeded. Extended idling a lso produces
heat, wh ich co uld result in overheat ing or
200
other damage to the vehicle or othe r proper ­
ty.
Regular maintenance
A badly tuned engine unnecessarily wastes a lot of fuel.
.,. Have you r veh icle serviced at regula r interva ls.
By hav ing your veh icle regularly serv iced by an
Audi dealer he lps to ensure that it runs p roperly
and e conomi cally. The cond ition of you r vehicle
not only affects its safety and ab ility to hold its
val ue, it also affects
fuel con sumption .
Check your oil each t ime you fill your tank .
The amount of oi l used is related to engine load
and speed .
It is normal for the oil consumption of a new en­
gine to reach its lowest value after a certain mile­
age has been driven .
You must drive your vehicle about 3,000 mi les
(5,000 kilometers) before you can properly as­
sess oil consumpt ion.
This also app lies to fue l consumption and engine
output .
(D Note
-Have your ve hicle ma intained properly and
in accordance with the se rvice recommenda ­
tions in your Warranty
& M aintenance book­
let. Lack of proper maintenance as we ll as
improper use of the veh icle w ill impair the
function of the em ission control system and
cou ld lead to damage .
- Do not alter or remove any component of
the Emission Contro l System u nless ap­
proved by the man ufacturer.
- Do not alter or remove any device, such as
heat shields, switches, ign ition w ires,
valves, which are designed to protect your
vehicle's Emission Contro l System and other
impo rtant ve hicle compone nts.

Fewer short trips
Fuel consumption will always be relatively high
on short trips.
11-Try to avoid driving short distances with a cold
engine.
The engine and catalyt ic converter have to reach
their optimal
op erating tempe ratur e to reduce
fuel consumption and noxious emissions effec­ tively .
Just after starting, a co ld eng ine in a mid-s ize car
only achieves a fuel economy of 6-8 miles 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), the engine is
at its proper operating temperature and fuel
economy has reac hed a norma l level. So you can
see tha t you should avo id short t rips w henever
possib le.
The
outside temperature is also cr itical in this re­
g ar d. Yo ur car consumes mo re fuel in the w in ter
tha n in the s umme r.
Driving and the envir onment
201

Check ing and F illing
oil du ring the break -in period than they consume
after oil consumption has stabilized .
Unde r no rmal condi tions, the rate of o il con­
sumpt ion depends on the quality and viscosity of
the oi l, the RPM (revolutions per minute) at
which the engine is operat ed, the ambient tem­
perature and road cond itions . Further factors are
the amount of oil dilut ion from water condensa­
tion or fuel residue and the oxidation level of the
oil. As any eng ine is subject to wear as m ileage
bu ilds up, the oil consumption may increase over
time until rep lacement of worn components may
become necessa ry .
W ith all these variables com ing into play, no
standard rate of oil consumpt ion ca n be estab­
lished or specified . There is no a lternative to reg­
ular and frequent checking of the oil leve l, see
Note .
If the ye llow eng ine oil level war ning symbol in
the instrument cluster
II lights up, you should
check t he oil leve l as soon as possib le
¢
page 224 o r ¢ page 225. Top off the o il at
your ea rliest convenience ¢
page 225.
A WARNING
Before you check anything in the engine com ­
partment, a lways read and heed a ll WARN­
INGS ¢.&
in Working in the engine compart­
ment on page 220.
(D Note
Driving with an insufficient oil level is likely to
cause severe damage to the engine .
@ Tips
-The oil pres sure warning display. i s not
an indicator of the o il level. Do not rely on
i t. Instead , check the oil level in your en­
gine at regular intervals, preferably ea ch
time you refuel , and always befo re going
on a long trip.
- If you have the impression your engine con­
sumes excessive amounts of oil, we recom­
mend that you co nsul t yo ur Audi dealer to
have the cause of your concern p roperly di ­
agnosed . Keep in mind that the acc urat e
224
meas urement of oi l consumption re quires
great care and may take some t ime. Yo ur
Audi dea ler has instructions about how to
meas ure o il consumption acc urately.
Checking the engine oil level
App lies to: vehicles wi th oil level indicato r
Fig. 198 Disp lay : o il leve l ind icato r
.,. Par k your veh icle on a leve l su rface.
.,. Shut the eng ine off when it is warm .
.,. Switch o nly the ignition back on.
.,. Wait approximate ly two minutes.
.,. Select:
!CAR ! function button > Car systems
control button > Servicing & checks > Oil le vel.
.,. Check the oil level in the display c> fig . 198 . Add
eng ine oi l if the ba r of the oil leve l ind icator is
nea r "m in"
¢ page 225 .
Depend ing on the way the vehicle is driven and
the operating cond it ions, oil consumpt io n can be
u p to 1/2 qua rt pe r 600 miles (0 .S liter per
1,000 km). Consumpt ion may be h igher w it hi n
the first 3, 000 mi les (5,00 0 km).
(D Tips
The o il level indicato r in the MMI Display is
o nl y an information display. If t he oi l level is
l ow, a m inimum oil w arn ing appea rs in the in­
str ument clus ter. Ad d oil ¢
page 225. If the
hood has been opened, the curren t oil level is
shown in the instrument cluster the next t ime
the ignition is switched on .

the risk of an accident. Read
and follow the important safe­
ty precautions inc:::>
page 248 ,
Tires and vehicle load limits.
-The tire must flex more if the tire pressure is too low or if
the vehicle speed or load are
too high . This heats the tire up
too much . This increases the
risk of an accident because it
can cause the tire to burst and result in loss of vehicle con­
trol.
- Incorrect tire pressure in ­
creases tire wear and has a negative effect on driving and
Tire pressure table
Please note that the information
contained in the following table
was correct at the time of print­ ing , and the information is sub­
ject to change . If there are differ­
ences between this information
and the tire pressures specified
on the label on the driver's side B­
pillar, always follow the specifica­
tion on the B-pillar label
~ page 246, fig. 207.
Wheels
braking behavior, which in ­
creases the risk of an accident.
Replace lost valve caps to re­
duce the risk of damage to the
tire valves.
Tire pressure that is too low in­ creases fuel consumption.
Audi recommends using the
tire pressure specified for a
normal load c:::>
table on
page 248
or for a full load
when the vehicle is partially
loaded .
Make sure that the tire designa­
tion on your tire matches the des­
ignation on the tire pressure label
and the tire pressure table .
The following table lists recom ­
mended tire pressures in cold
tires according to the load and
the size of the tires installed .
247