2018 AUDI A8 engine

Opening and clo sin g
Unlocking and locking with the remote
control
F ig. 23 Remote cont ro l key: button programm ing
• T o unlock the veh icle, press them b utton
~ fig. 23.
• To lock the vehicle, press the ~ button one
time '*& .
• To unlock the luggage compartment lid, press
the
-c::5 button briefly.
• To trigger the alarm, press the I PANIC I button.
The vehicle horn and emergency flashers are activated.
• To turn the alarm off, press the red I PANIC I
button aga in .
If the vehicle is unlocked and none of the doors,
the rear lid or hood are opened within 60 sec­
onds, the vehicle locks aga in automatically . This
feature prevents the vehicle from be ing acciden­
tally left unlocked over a long per iod of t ime.
The settings in the Infotainment system deter­ m ine if the ent ire vehicle or only one of the doors
is unlocked when unlocking the vehicle
¢ page 32.
_& WARNING
Read and heed a ll WARNINGS¢ A in Descrip­
tion on page
27.
(D Tips
- Only use the remote control key when you
a re w ithin view of the vehicle.
- The vehicle can only be locked when these­
l ector lever is in the P posit ion.
- Do not use the remote control when you are
i nside the vehicle. Otherwise, you could un­
i ntent io nally lock the vehicle. If you then
30
tried to start t he engine or o pen a door, the
alarm would be triggered. If this happens,
press
the m unlock button.
-Only use the pan ic function in an emergen­
cy .
Unlocking and locking with the
convenience key
Applies to: vehicles with convenience key
The doors and luggage compartment lid can be
unlocked/locked without using the remote con­
trol key.
F ig . 2 4 Door hand le: locki ng w ith t he convenie nce key
Unlocking the vehicle
• Gr ip the door hand le. The door un locks auto-
matically .
• Pull the door hand le to open the door .
Locking the vehicle
Requirement: the se lector lever must be in P.
~ N 0 ± ., m
• To lock the vehicle, close the door and touch
the sensor in the door handle
once ¢ fig. 24,
'* &_. Do not hold the door handle while doing
this.
You can unlock/lock the ve hicle at every door .
The remote control key cannot be more than ap­ prox imately 4 feet (1.5 meters) away from the
door handle or the luggage compartment. It
makes no d ifference whether the master key is in
yo ur j ack et poc ket o r in yo ur brief case, for exam ­
ple.
The door cannot be opened for a brief period d i­
r ectly after lock ing it. Th is way you have the op­
po rtuni ty to chec k if the doors lo cked cor rect ly.
ll>

lL t:0 ....
"" ......
"" .... 0 0 :c ' driver's door@¢ fig. 35. The indicator light in
the button turns on/blinks.
.,. To activate/deactivate the child safety lock on
both sides, you must press
the [±] buttons one
after the other.
Vehicles with ~ button
.,. To deactivate/activate the power window
switch in the rear doors, press the [@button in
the driver's
door @ c;, fig. 35. The indicator
light in the button turns on/blinks .
.,. To also deactivate/activate the inner door han­
dle, open the respective rear door and turn the
key switch w ith the mechanical key in the direc­
t ion of the arrow or opposite the d irection of
the arrow
¢fig. 36.
The follow ing funct ions are also turned off when
the child safety lock is act ivated :
- The buttons for the sunshade* in the rear win­
dow .
- The buttons for the power sunshades* in the
side windows.
- The button for the front passenger seat ad just­
ment* (for vehicles with
the[±] button when the
child safety lock is activated for the rear door
on the passenger's side).
.&_ WARNING
Always take the veh icle key with you when
leaving the vehicle, even for a short period of
time. This applies particularly when children
remain in the vehicle. Otherwise children
could start the engine or operate electrical
equipment (such as power windows), which
increases the risk of an accident.
-
Opening and closing
Power window
Controls
The driver can control all power windows.
Fig. 37 Section of driver 's doo r: controls
All power window switches are equipped with a
two -stage function:
Opening and closing the windows
CD N M 0
::> CD m
.,. To open or close the window completely, press
the switch down or pull the switch up brief ly to
the second level. The ope rat ion will stop if the
sw itch is pressed/pulled again.
.,. To select a position in between opened and
closed, press/p ull the switch to the first level
until the des ired window position is reached .
Power window switches
CD Left front door
@ Right front door
® Left rear door
@ Right rear door
.&_ WARNING ~
-Always take the vehicle key with you when
leaving the vehicle, even for a short period
of time. This applies particularly when chil­
dren remain in the vehicle. Otherwise the
children could start the engine or operate
electrical equipment such as power win­
dows, which increases the risk of injury. The
power windows continue to function until
the driver's door or front passenger's door
has been opened.
- Pay careful attention when closing the win­
dows. Pinching could cause serious inj uries .
37

lL t:0 .-,
"' ......
"' .-, 0 0 :c " Lights and Vision
Exterior Lighting
Switching the headlights on and off
F ig . 44 Instrument panel: l ig ht switc h w ith all -weather
l ig hts
The headlights only wo rk when the ignition is
switched on. While sta rting the engine or when
switch ing off the ign ition, the headlights will go
off and only the side marker lig hts will be on .
I f the sys tem is not operating p roperly, a w arning
symbol in the dr ive r informa tion d isplay is dis­
p layed .::>
page 24.
Light switch --r;_-
T u rn the switch .::> fig. 44 to the co rresponding
position . When the lights are switched on, the
:o o:
sym bol turn s on .
0 - The lights a re off or the daytime runni ng
lights are on :
-USA models: The daytime running lig hts will
come on automatically when the ignition is on
and the light sw itch .::>
fig. 44 is in the O posi­
t ion or the
AUTO position (only i n day light con­
di tions). The
Daytime running lights function
c an be turned o n and off i n the MM I
¢ page 45, i=> &..
-Canada model s: The dayt ime runn ing lights
will come on au toma tic ally when the igni tion is
on and the light swi tch .::>
fig. 44 is in the O po ­
s ition, the
:oo: pos ition or the AUTO position
(o nly in daylig ht
conditions) .::>&. .
AUTO -Automat ic head lig hts sw itch on and off
depend ing on br ightness, for example in tw ilight,
d uring rain or in
tunne ls ¢ &. .
Lights and V ision
:oo: -Side marker ligh ts
io -Low beam head lights
~ -All-weather lig hts
lw -Rear fog lights*. When the rear fog lights are
on, the symbol
0$ on the sw itch will i lluminate.
All-weather lights
The front lights are adjus ted au toma tica lly so
that you are less likely to see g lare from your ow n
head lig hts, for example when driving on a wet
road.
Automatic dynamic headlight range control*
Yo ur vehicle is equ ipped with a headlight r ange
contro l system so tha t the head lig hts do not
blind oncoming t raffic if the vehicle load
changes . T he hea dlight range also adj usts auto­
matically when brak ing and acce lerating .
Light functions
The following light funct io ns are available de ­
pending on veh icle equipment and o nly fu nction
whe n the light switc h is in t he AUTO position.
You can deactivate these functions in the MMI
under
Audi adaptive light ¢ page 45.
Static cornering light* -the corne ring light
switches on automatically when the steering
wheel is turned at a certai n angle at s peeds up to
approximately 44 mph (70 km/h) and when the
turn s ignal is activated at speeds up to approxi­
mately 25 mp h (40 km/h) . The area to t he side of
t h e ve hicle is illuminated better w hen turning.
Dynamic curve light * -the curve light adapts it­
self to the curves in the road .
Highway l ight function* -this function adapts
t h e lig hting for highway driving based on vehicle
speed .
A WARNING ~ --Automatic headlights are only intended to
assist the driver. They do no t relieve the
driver of his responsib ility to check the
headligh ts and to turn them on manually
ac co rding to t he cur rent light a nd vis ib ili ty
conditions . Fo r example, fog cannot be
43

u. co .... N
" N .... 0 0 :c ' Warm and cold Deluxe automatic
climate control
Description
The climate control system warms, cools and re ­
moves humidity from the air in the vehicle interi­
or. It is the most effective when the windows and
sunroof* are closed. If there is a build-up of heat inside the vehicle, ventilation can help to speed
up the cooling process .
In all heating mode functions, except for defrost,
the blower only switches to a higher speed once
the engine coolant has reached a sufficient tem­
perature .
Pollut ant filt er
The po llutant filter removes pollutants such as
dust and pollen from the air.
Ke y r eco gnition
The climate control settings are a utomatically
stored and assigned to the remote control key
that is in use .
A WARNING
Poor visibility can lead to accidents.
- For safer driving, keep all windows free of
ice, snow and fog .
- Become familiar as quickly as possible with
the correct use and function of the climate contro l system, especially with the defrost­
ing and defogging function.
- When the temperature is below freezing,
only use the windshield washer system after
Warm and c old
the windshield has been warmed by the cli­
mate control system. The washer fluid could
freeze on the windshield and impair visibili­
ty .
@ Note
-If you suspect that the climate contro l sys­
tem is damaged, switch the system off to
prevent further damage and have it checked
by an authorized Audi dealer or authorized
Aud i Serv ice Facility.
- Repa irs to the Aud i climate control system
require special technical knowledge and
special tools . See an authorized Aud i dealer
or authorized Audi Serv ice Fac ility .
@ For the s ake of the environment
Reducing the amount of fuel used also re­
duces the amount of pollutants that enter the
a ir .
(D Tips
- To prevent interference with the heat ing
and cooling output and to prevent the win­
dows from fogging over, the a ir intake in
fro nt of t he w indshie ld must be free of ice,
snow or leaves.
- Condensat ion from the coo ling system can
dr ip and form a pudd le of water under the
veh icle . T h is is no rma l and does not mean
there is a leak .
- Th e energy management system may tem­
porarily switch off certain functions, suc h as
the seat heating* or rear window defogger .
T hese systems are avai lable again as soon
as the energy supply has been restored.
69

Adjusting the temperature
Temperatures between 60 °F ( +16 ° C) and 84 °F
(+28 °C) can be set . Outside of this range,
LO or
HI will appear in the climate contro l system dis­
p lay . At both of these settings, the climate con ­
trol system runs continuously at maximum cool­
ing or heating power. There is no temperature
regulation.
~ Adjusting the amount of air
You can adjust the airf low manually to suit your
ne eds . The blower should always run at a low set ­
ting to prevent the windows from fogging and to
ensure a continuous exchange of air ins ide the
vehicle. To have the airflow regulated automat i­
cally, press the
IAUTO I button.
~ Adjusting the air distribution
You can manually se lect the vents where the air
will flow. To have the a ir distribution regu lated
automatically, press the
IAUTO I button.
Ill/ lil* Adjusting seat heating/ventilation*
Pressing the button switches the seat heating/
venti lation on at the highest setting (level 3). The
LEDs indicate the temperature level. To reduce
the temperature, press the button aga in. To
sw itch the seat heating/ventilation off, press the
button repeatedly until the LED turns off.
After 10 minutes, the seat heating/ventilation
automatically switches from level 3 to level 2.
l The windshield and side windows are defrosted
or cleared of condensation as quickly as possible.
The maximum amount of air flows main ly from
the vents below the windshield. Recirculation
mode switches off. The temperature shou ld be
set to approximately 72 °F (22 °().
The
IAUTOI button switches the defroster off .
IQil REAR I Switching the rear window defogger
on and off
The rear window defogger only operates when
~ the engine is running. It switches off automati-....
~ cally after 10 to 20 minutes, depending on the N
~ outside temperature. 0 :c ' Warm and cold
To prevent the rear window defogger from
switching off automatica lly, press and hold the
loo REAR I button for more than three seconds .
This is stored until the ignition is switched off.
I SYNC! Synchronization*
When synchron ization is switched on, the set­
tings for the driver's side are applied to the front
pass enge r's side (except for seat heating/venti la ­
tion*). The rear is also synchronized in vehicles
with the 4-zone deluxe automatic climate control
system*. Synchronization switches off if the set­
t ings are adjusted on the front passenger's side
or in the rear*.
You can synchronize the sett ings in a row by
pressing and holding a knob. For example, to ap­
ply the sett ings for the front passenger's side to
the driver's side, press and hold the knob on the
front passenger 's side.
Vents
You can open or close the center and rear vents in
the cockpit and the vents in the rear center con­
sole and door pillars using the ridged thumb­
wheels. The levers adjust the direction of the air­
flow from the vents.
Residual heat
You can act ivate the residual heat function when
the ignition is switched off by pressing and hold­
ing the
lj) button. The residual heat from the
coolant is used to heat the vehicle interior . T he
r esidua l heat function switches off automatically
after about 30 minutes .
_&. WARNING
-You should not use the recirculation mode
for an extended period of time since no
fresh air is drawn in. With the air-condition ­
ing switched off, the windows can fog up,
which increases the risk of an acc ident.
- Individuals with reduced sensitivity to pain
or temperature could develop burns when
using the seat heating function. To reduce
the r isk of injury, these individua ls should
not use seat heating .
71

u. co .... N
" N .... 0 0 :c ' Driving
General information
Breaking in
A new veh icle must be broken in for the first
1,000 m iles ( 1,500 km). Do not dr ive at speeds
that will ex ceed 2/3 of the max imum perm itted
engine speed (RPM) for the first 600 miles
(1,000 km), and avoid full acceleration during
this period . You may gradually start increasing
the RPM and the speed between 600 miles (1,000 km) and 1,000 miles (1,500 km) .
During the first hours of use, the engine has a
h igher internal friction than later on when all
moving parts have settled into p lace with each
other.
How the vehicle is driven d uring the first 1,000
miles (1 ,500 km) also affects t he engine quality .
Drive at moderate engine speeds after the initial
break-in per iod, part icu larly when running a cold
engine . Th is will reduce eng ine wear and improve
the m ileage .
Do not drive at too
low of an engine speed (RPM).
Shift down if the engine stops running "smooth­ ly". Extremely high eng ine speeds are automati­
cally reduced .
New tires
If your vehicle is running on new t ires, dr ive pa r­
ticularly ca refu l for the first 350 miles (500 kilo­
mete rs) after fi tting .
A WARNING
New tires tend to be s lippery and must also
be "broken -in" . Be sure to remember this dur­
ing the first 350 miles (500 ki lometers).
Brake gently . Avo id following closely behind
other vehicles or other situations that might
require sudden, hard brak ing .
-
Driving
Reducing the risk of vehicle damage
(UJ) Note
When dr iv ing o n poor roads, by curbs and on
steep ramps, make sure that low -hanging
components such as the spoiler and exhaust
system do not come into contact with these
or they co uld be damaged. This espec ia lly ap­
plies to vehicles w ith low ground clearance
and vehicles that are heav ily loaded.
Driving through water on roads
Note the following to reduce the risk of veh icle
damage when dr iving through wate r, fo r example
o n flooded roads:
- The water must not be any higher than the bot­
tom of the veh icle body .
- Do not dr ive faster than walk ing speed .
A WARNING
-
After driv ing through water or mud, the effec ­
tiveness of the b rakes may be reduced due to
moisture o n the brake rotors and brake pads.
A few ca refu l bra ke app lications sho uld d ry
off the brakes and restore the fu ll braki ng ef ­
fect.
(UJ) Note
- Vehicle components such as t he e ng ine,
t ra nsmission, suspe nsion or elect rical sys­
t em can be seve re ly damaged by driv ing
throug h water .
- Alw ays sw itch the Start/Stop system off
w hen driv ing th ro ugh water
q poge 78.
(D Tips
- Determine the depth before d riving throug h
wate r.
- Do not stop the vehicle, drive in reverse or
sw itch t he e ngine off when d riving through
wate r.
- Keep in mind that o ncom ing vehicles may
cr eate waves that raise the wa ter level and
m ak e it too deep for yo ur vehicle to drive
throug h safe ly.
73

Drivin g
-Avoid driving through sa lt water, because
this can cause corrosion .
Economical and environmentally-friendly
driving
The amount of fuel consumption, the env iron­
mental impact and the wear to the engine,
brakes and t ires depends mostly on your dr iv ing
style. W it h an anticipatory and economic dr iv ing
style , fu el consumption can be reduced by ap ­
p roximate ly 10 -15% . The following tips wi ll help
you conserve the environment and your money at the same time .
Anticipatory driving
A veh icle uses the most fuel when acce le rating.
When you dr ive with ant ic ipat io n, you do no t
need to brake as often and so you accelerate less .
When possib le, let your vehicle coast with a
gear
eng aged ,
for example, when you notice that the
next traffic light is red. This produces an engine
braking effect, which helps to protect the brakes
and tires and reduces the emissions and fuel con­
sumpt ion to zero (fuel shut -off during decelera­
tion) .
Shift efficientl y
Upshifting earlier is an effective way to save fuel.
Staying in a gear too long uses fue l unnecessari­
ly . Press down on the accelerator pedal slowly
and avoid "k ick-down" .
Avoid full accel eration
You shou ld rare ly trave l at the maximum vehicle
speed. High speeds cause a disproportionately h igh increase in fuel consumption, emissions and
traffic no ise . Slower driving saves fuel.
Reduce idlin g time
The Start/Stop system* he lps to reduce the idling
time automatically. In vehicles without the Start/
Stop system*, it is efficient to switch the eng ine
off when stopped at ra ilroad crossings and long
red l ights . Stopp ing the engine for 30 -40 sec­
onds already saves more fuel than the amount of
ext ra fuel needed to resta rt the eng ine.
74
It takes a ve ry long time in id le to warm the en­
gine up to operating temperature. Wear and
emissions are especially high in the warm -up
phase. Therefore, you shou ld begin driving im­
med iate ly after starting the engine. Avoid high
RPMs while doing this .
Hav e maintenance perfo rmed regul arly
By having maintenance performed reg ularly on
your vehicle, you can help to reduce fuel con­
sumption before you even start to drive. The maintenance condition of your vehicle not on ly
affects traffic safety and long-term value but al­
so impacts fuel consumpt ion. A poorly main­
ta ined engine can lead to fuel consumpt ion that
i s 10% hig he r th an no rma l.
Avoid short trip s
The engine and exhaust cleaning system must
reach their optimal operat ing temperature to ef­
fect ively reduce consumpt ion and emissions .
A cold engine uses a d isproportionately high
amount of fuel. The engine reaches operat ing
temperature and consumption normalizes only
after approximately 2 .5 m iles (4 km) .
Check the tire pressu re
To save fue l, make sure the t ires are always in­
flated to the correct pressure
¢ page 291. The
fuel consumpt ion can increase by 5% if the pres­
sure is only 0 .5 bar too low . Due to the increased
r oll ing resistance, low tire p ressures w ill also
l ead to greater tire wear and will affe ct driv ing
behav ior.
Drive w ith summer tires when poss ible because
t hi s can increase fue l economy by up to 10% .
Eliminate unnecessary weight
Since every pound of extra weight increases fuel
consumption, it pays to remove any unnecessary
weight.
A roof rack increases the w ind resistance on the
vehicle and shou ld be removed when it is not
needed. You will save approximately 12% of your
fuel when at speeds from 62-75 mph (100-120 km/ h).
.,.

lL t:0 ....
"" ......
"" .... 0 0 :c ' Save en er gy
The engine drives the generator, wh ich generates
electricity; the fue l consumption also increases
with the demand for electricity. Therefore, switch
e lectrical equipment off when you no longer
need it. Examples of equipment that use a lot of
energy are air blowers at a high setting, the rear
window defogger and seat heating*.
CD Note
Do not leave engine idling unattended after
starting. If warning lights should come on to
ind icate improper operation, they would go
unheeded. Extended idling also produces
heat, wh ich could result in overheat ing or
other damage to the vehicle or other p roper-
ty.
CD Note
-Have your vehicle maintained properly and
i n accordance with the service recommenda­
tions in your Warranty
& Ma intenance book­
l et. Lack of proper maintenance as well as
i mproper use of the vehicle will impair the
function of the emission control system and
could 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 shie lds, switches, ignition wires,
valves, which are designed to protect your
vehicle's Emission Control System and other
important vehicle components .
@ 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 vehicle
load and speed, road and weather conditions
trip length, etc.
'
D rivi ng
Steering
Adjusting the steering wheel position
The steering column can be power adjusted up
and down and forward and back.
F ig . 89 Sw itc h for steering colu mn adjustment
Requirement: the driver's seat is set correct ly.
"' To adjust the he ight, press the sw itch up/down .
The steering co lumn will continue movi ng as
long as you are pressing the switch.
"' To move the steering wheel forwa rd or back,
press the switch forward/back. The steering
column will continue moving as long as you are
pressing the switch.
T he steering wheel can a lso be adjusted when the
ignition is switched off .
In veh icles with memory function*, the steering
co lumn settings are s to red toget her w ith the
seat position.
A WARNING
Improper use of steering wheel adjustment
and improper seating position can cause seri­
ous personal injury.
- Adjust the steering wheel column only when
the vehicle is not moving to prevent loss of
veh icle control.
- Ad just the driver's seat or steer ing whee l so
that the re is a m inimum of 10 in (25 cm)
between your chest and the steering wheel
r::;, page 209, fig . 217 . If you cannot main­
tain this minimum distance, the airbag sys-
tem cannot protect you p roperly.
~
75