2017 AUDI A8 brake

0 co .... N ,..._
N .... 0 0 :c ' the risk that the vehicle will slide. Drive care­
fully to the nearest authorized Audi dea ler or
authorized Audi Service Fac il ity and have the
malfunction corrected.
(D Tips
For addit ional information on ESC and ABS,
refer to¢
page 126.
ffl;/ !f Safety systems
The II (USA models)/ m (Canada mode ls) indi­
cator light monitors the safety systems.
If the
II (USA mode ls)/ m (Canada models) in­
d ic ator light turns on or blinks, there is a mal­
function in a safety system such as the airbag or belt tensioner system .
Drive to an authorized Aud i dea ler or a uthori zed
Aud i Service Facility immedia tely to have the
malfunct ion corrected.
A WARNING
Have the malf unct ion in the safety systems
inspected immediately. Otherwise, the re is a
r is k th at the systems may not activate du ring
a co llision, which increases the risk of serio us
injury or death.
& Brake booste r
II Brake servo : limited functionality . You can
continue driving. Contact workshop
-
There is a malfunction in the brake boos ter. The
b ra ke booster is availab le, bu t its effec tiveness is
r educed. Braking behavior may be diffe rent from
h ow it no rmally functions and t he brake peda l
may vibrate.
D rive to an aut ho rize d Aud i dea le r o r au thorized
Aud i Service Facility immediately to have t he
malfunct ion corrected.
(0) Brake pads
llJ Brake pads!
T he br ake pads are wo rn. Cockpit o
verview
Drive to an authori zed A udi dealer or au thorized
Audi Service Facility immediate ly to have the
brake pads checked.
Applies to USA models
T he llJ indica tor light turns on togethe r wi th the
1111 indicator light
EPC Engine control (gasoline engine)
~ Engine start system fault . Please contact
deale r
The re is an eng ine contro l ma lf u nction.
Immed iate ly dr ive s low ly to an author ized A udi
dealer or au thor ized A udi Se rvice Fa cility to have
t h e mal func tion corre cted.
a Malfunction indicator lamp (MIL)
The ma lf u nction indicator lamp ( MIL) is part of
the On Board Diagnostic system (OBD II). The
¢4 c;ymbol turns on when the ignition is sw itched
on and turns off aga in once the engine is started
and ru nning at a steady idle speed . This indicates
t h at the MIL is f unct ion ing cor rectly .
The ind icator light turns on if there is a malfunc­
t ion in the engine electronics . See an authorized
Audi dealer or authorized A udi Service Fac ility to
have t he mal funct ion cor rected . Fo r additional
informa tion, see
¢ page 25 .
The ind icator light can a lso turn o n if the fuel fill­
er cap is not closed correctly¢
page 269.
!?' Engine speed limitation
Applies to : vehicles with engine speed limitatio n
~ Maximum engine speed XXXX RPM
The eng ine speed is automatically limited to the
RPM shown in the instrument cluster d isplay.
This protects the engi ne from overheat ing .
The eng ine speed limitation deactivates once the
engine is no longe r in the critical temperatu re
range and you have re leased the accelerator ped­
al once .
If the engine speed limitation was activated by
an engine cont rol malfunction, the~ indicator ..,.
23

0 co .... N ,..... N .... 0 0 :c ' Driving
General information
Breaking in
A new vehicle must be broken in, and the break­
in distance should be 1,000 mi les ( 1,500 km). Do
not drive at speeds that w ill exceed
2/3 of the
maximum permitted engine speed
(RPM) for the
first 600 miles (1,000 km) , and avoid full accel­
eration 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
higher internal friction than later on when all
moving parts have settled into place with each
other.
How the vehicle is driven during the first 1,000
miles (1,500 km) also affects the engine quality.
Drive at moderate engine speeds after the initial
break-in per iod, part icularly when running a cold
engine . This will reduce engine wear and improve
the mileage .
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 tires, drive pa r­
ticularly careful for the first 350 miles (500 kilo­
meters) after fitting .
.&_ WARNING
-
New tires tend to be slippery and must also
be "broken-in". Be sure to remember this dur­
ing the first 350 miles (500 kilometers).
Brake gently . Avo id following closely behind
other vehicles or other situations that might
require sudden, hard brak ing.
Avoid damaging the vehicle
When you are driving on poor roads, or over
curbs, steep ramps, etc., make certain that low-
Driving
lying parts such as spoilers and exhaust system
parts do not bottom out and get damaged .
T h is is espec ially true for veh icles with low-s lung
chass is (sports chassis)* and fully loaded
vehicles .
Driving through water on roads
Note the following to reduce the risk of 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 faste r than walk ing speed.
.&_ WARNING
=
After driving through water or m ud, the effec-
tiveness of the brakes may be reduced due to moisture on the brake rotors and brake pads.
A few careful brake applications should dry
off the brakes .
(D Note
-Vehicle components such as the engine,
transmission, suspension or electrical sys­
tem can be severely damaged by driving
through water.
- Always switch off the Start/Stop system
when driving through water r::;,page
78.
{i) Tips
- Determine the depth before driving through
water.
- Do not stop the vehicle, drive in reverse or
switch the engine off when driving through
water.
- Keep in mind that oncom ing vehicles may
create waves that raise the water level and
make it too deep for your vehicle to drive
through safely.
- Avoid dr iving through salt water, because
this can cause corrosion .
73

Driving
Economical and environmentally-friendly
driving
The amount of fue l consumption, the environ ­
mental impact and the wear to the engine,
brak es and tir es d epends mostly on your driving
style. W ith an anticipatory and economic driv ing
style, fuel consumption can be reduced by ap­ proximately 10-15% . The following tips will help
you conserve the environment and your money at the same time .
Anticip atory d riving
A vehicle uses the most fuel when acce lerating.
When you drive with ant ic ipat ion , you do not
need to brake as often and so you accelerate less .
When possible, let your ve hicle coast w ith a
g ear
e ngag ed ,
for example , when you notice that the
next traffic light is red. This produ ces a n eng ine
b raking effect, which helps to protect the brakes
and tires and reduces the emissions and fuel con­
sumption to zero (f uel shut-off during decelera ­
tion).
Shift effici ently
An effective way to save f uel is to upshift earlie r.
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 acceleration
You sho uld rare ly t ravel at the maximum vehicle
speed. High speeds cause a disp roportiona tely
h igh increase in fuel consumption, emissions and
traffic noise . Slower driving saves fuel.
Reduce idling time
The Start-Stop system * helps to reduce the id ling
time automatically . In vehicles witho ut the Start­
S top sys tem* , it is efficient to switch the eng ine
off when stopped at ra ilroad cross ings a nd long
red lights . Stopping t he engine for 30 -40 sec ­
onds already saves more fuel than the amount of
extra fuel needed to restart the eng ine .
It takes a very long time in idle to wa rm the en­
gine up to operating temperature . Wea r and
emissions are especially high in the warm -up
phase. Therefore, yo u should begin driving im-
74
mediate ly after s tarting the engine . Avoid high
RPMs whi le doing this.
Have maintenance performed regularly
By having maintenance pe rformed regu la rly on
you r vehicle, you can help to reduce fuel con ­
s u mption before you even sta rt to drive. The
maintenance condition of your vehicle not on ly
affects traffic safety and long-term value but al ­
so impacts fuel consumption. A poorly main­
ta ined engine can lead to fuel consumption that
i s 10% higher than normal.
Avo id short trip s
The engine and exha ust cleaning system must
reach their optima l operating temperature to ef­
fect ive ly reduce consumpt ion and emissions.
A cold engine uses a d isproportionately high
amount of fue l. The engine reaches operating
temperat ure and cons umption no rmalizes on ly
after approximate ly four kilometers.
Check the tire pre ssure
To save fuel, ma ke sure the tires are always in­
flated to t he corre ct pressure
¢ page 291 . The
fuel consumption can increase by 5% if the pres­
sure is only 0 .5 bar too low. Due to the increased
roll ing resistance, low tire pressures w ill also
lead to greater tire wear and will affect driving
behavior.
D rive with summer tires when possib le because
th is can increase fue l economy by up to 10%.
Eliminate unnecessary we ight
Since eve ry po und of extra weight increases f uel
consump tion, it pays to remove any unnecessa ry
weight .
A roof rac k increases the w ind resis tan ce on the
vehicle and shou ld be removed when it is not
needed . You will save approximately 12% o f you r
fuel when at speeds from 62-75 mph (100-120 km/h) .
Save energy
The eng ine d rives the genera tor , which gene rates
e lectric ity; the fuel consumpt ion also increases
with t he demand for e lec tricity . T he refore, switch ..,_

Driving
-If physical limitations prevent you from sit­
ting 10 in (25 cm) or more from the steer­
ing wheel, check with your authorized Audi
dealer to see if adaptive equipment is avail­
able .
- If the steering wheel is aligned with your
face, the supplemental driver's airbag can ­
not prov ide as much protection in an acci­
dent. Always make sure that the steering
wheel is aligned with your chest.
-Always hold the steering wheel with your
hands at the 9 o'clock and 3 o'clock posi­
tions to reduce the risk of personal injury if
the driver's airbag deploys.
- Never hold the steer ing wheel at the 12
o'clock position or with your hands inside
the steering wheel rim or on the steering
wheel hub . Holding the steering wheel the
wrong way can cause serious injuries to the hands, arms and head if the driver's airbag
deploys.
Entry assistance
Easy seat entry makes it easier to enter and exit the vehicle by adjusting the steering column au­
tomatically.
• In the Infotainment system, select the !CAR I
function button > Car systems control button >
Vehicle settings> Seats> Driver's seat> Easy
seat entry> On.
When easy seat entry is switched on, the steering
column goes back up into the park position when
the ignition is switched off. After entering the ve­
hicle, the steering column returns to the stored position once the ignition is switched on .
76
Starting and stopping
the engine
Starting the engine
The ! S TAR T ENGINE S T OPI button switches the
ignition on and starts the engine .
Fig. 90 Cente r conso le: START ENGINE STOP but ton
Switching the ignition on/off
• To switch the ignit ion on or off, press the
!START ENGINE STOPI button . Do not press the
brake pedal while doing this.
Starting the engine
• Press the brake pedal¢.&_.
• Press the
I START ENGINE STOP I button
¢
fig . 90 . The engine will start .
If the engine does not start immediately, the
starting procedure stops automatically after a
short time . Repeat the starting process .
Start/Stop system
Read the information in¢ page 78 , Start/Stop
system.
A WARNING
To reduce the risk of poisoning, never allow
the engine to run in confined spaces .
(D Note
Avoid high engine speed, full throttle, and
heavy engine load if the engine has not
reached operating temperature yet. You could
-
damage the engine. .,..

0 co .... N ,..._
N .... 0 0 :c ' @ Tips
-Some noise after starting the engine is nor­
mal and is no cause for concern.
- If you leave the vehicle with the ignition
switched on, the ignition will switch off af­
ter a certain amount of time. Make sure that
electrical equipment such as the exterior
lights are switched off.
Stopping the engine
"'Bring the vehicle to a full stop.
"'Select the P or N selector lever position.
"'Press the
I START ENGINE STOPI button
r::?v page 76, fig. 90.
Steering lock
The steering locks when you turn the engine off
using the
I START ENGINE STOPI button and
open the driver's door. The locked steering helps
prevent vehicle theft.
Emergency off function
If it is absolutely necessary, the engine can also
be turned off while driving in the R, Dor S selec­
tor lever position at speeds below 6 mph (10 km/
h). To stop the engine, press and hold the
I START ENGINE STOPI button and also press the
brake pedal.
& WARNING
-Never turn off the engine before the vehicle
has come to a complete stop. The full func­
tion of the brake booster and the power
steering is not guaranteed. You must use
more force to turn or brake. Because you
cannot steer and brake as you usually
would, this could lead to accidents and seri­
ous injuries .
- Always take the key with you whenever you
leave your vehicle. Otherwise, the engine
could be started or electrical equipment
such as the power windows could be operat­
ed. This can lead to serious injury.
- For safety reasons, always park the vehicle
with the selector lever in the P position.
Driving
Otherwise, there is the risk that the vehicle
could roll unintentionally.
@ Note
If the engine has been under heavy load for
an extended period of time, heat builds up in
the engine compartment after the engine is
switched off and there is a risk of damaging
the engine. For this reason, let the engine run
at idle for approximately two minutes before
shutting it off.
(D Tips
After the engine has been switched off, the
radiator fan can continue to run for up to 10
minutes -even with the ignition switched off .
It can also switch on again after some time if
the coolant temperature rises as the result of
heat buildup or if the engine is already warm
and the engine compartment is also heated
by the sun's rays.
Messages in the instrument cluster display
Turn off ignition before leaving car
This message appears and a warning tone sounds
if you open the driver's door when the ignition is
switched on.
Press brake pedal to start engine
This message appears when you press the
I START ENGIN E STOP ! button to start the engine
and do not press the brake pedal while doing so .
The engine can only be started when the brake
pedal is pressed.
= Key not in vehicle?
This indicator light turns on and this message ap­
pears if the ignition key was removed from the
vehicle when the engine was running. If the igni ­
tion key is no longer in the vehicle, you cannot switch on the ignition or start the engine once
you stop it. You also cannot lock the vehicle from
the outside.
Shift to P, otherwise vehicle can roll away.
Doors do not lock if lever is not in P.
77

Driving
This driver message appears for safety reasons if
the transmission has not be en shifted to the P
position when you switch the ign ition off. Move
the selector lever to the P posit ion. Otherwise the
ve hicle is not protected from ro lling and it cannot
be locked .
II Key is not re cognized. Hold ba ck of ke y
aga inst marked area. See owner's manual
If t he indicator light t urns on and this message
appears, there is a malfunction ~
page 78.
Turn off ignition before leaving car
This message appea rs if the dr iver 's door is
opened while the ignition is switched on . A lways
sw itch off the ignition if you are leaving the vehi­
cle.
Shift to P and turn off ignition befor e leaving
car, otherwi se vehicle c an roll away
This message appears if the driver 's door is
ope ned while the ignition is switched on and the
transmission has not been shifted to the P posi­
tion . Sh ift the t ransm iss ion into the P posit io n
a nd turn off the ignition if yo u are leav ing the ve­
h icle. O therwise t he vehi cle co uld rol l.
Starting the engine when there is a
malfunction
It may not be possible to start the engine under
certain circumstances, for example if the battery
in the vehicle key is drained, if interference is af­
fected the key or if there is a system malfunc­
tion.
N
c::==== =~
±
- ------- ~
Fig . 9 1 Cente r conso le/ re m ote cont ro l key: sta rt ing the
eng ine if t here is a malf u nction
Requirement: the message K ey is not recog ­
nized . Hold back of key against marked area.
78
See owner's manual must appear and the II in­
dicator light must tu rn on .
.,. Hold the remote cont rol key vertically in the lo ­
ca tion i ndicated
t1>) ~ fig. 91.
.,. Press the brake pedal.
.,. Press the I S TAR T
ENGINE ST OP I button . The
eng ine will start.
.,. Drive to an authori zed Audi dealer or author ­
ized Aud i Service Facility immediately to have
the malfu nction corrected .
(D Tips
You can view the message aga in by pressing
the lS TAR T
ENGI NE ST OP I button .
Start/Stop system
Description
Applies to: vehicles with Start/Stop system
The S ta rt/Stop sys tem can help increase fue l
eco nomy and reduce CO2 emissions .
In Sta rt/S top mode, the eng ine s huts off auto­
ma tically when the vehicle is stopped, such as a t
a traffic light . The ignition rema ins switched on
duri ng th is stop phase . The engine w ill restart
automat ica lly when needed .
The last Start/S top system setting is restored
when the ignition is sw itched on .
Basic requirements for Start /Stop mode
- Th e driver 's doo r must be closed .
- Th e driver 's seat belt much be fas tened.
- The hood must be closed.
- The vehicle m ust have driven faster than
2.5 mph (4 km/h) since the last t ime it stop­
ped.
- A trailer m ust not be hitched to the vehicle .
A WARNING
-Never turn off the engine before the vehicle
has come to a complete stop. The full func ­
t ion of the bra ke booster and the power
steer ing is not guaranteed. You must use
mo re fo rce to tu rn o r bra ke. Be cause you
canno t stee r and bra ke as y ou usually

C) C0 ....
"' ,....
"' .... 0 0 :r would, this could lead to accidents and
serious injuries.
- To reduce the risk of injuries, make s ure that
the Start/Stop system is turned
off when
working in the eng ine compartment
c:>page80.
(D Note
Always sw itch off the Start/Stop system when
driving through water
c:> page 80.
Starting /stopping the engine
App lies to: ve hicles with Sta rt/Stop system
Fi g. 92 Instrument cluster: eng ine switched off (stop
p h ase)
~ S low the vehicle to a stop us ing the b rake and
keep pressing the brake pedal. The engine w ill
switch off. The
rt] indicator light appears in the
infor mation li ne in the ins trumen t cluster dis­
play.
~ When you take your foot off the b rake peda l,
t h e engine restarts. The ind icator light turns
off.
Additional information
The engine w ill swi tch off in the P, D, N and S po­
sitions as we ll as in manu al mode. I n the P pos i­
tion, the engine will also remain o ff if you take
your foot
off the brake pedal. The engine starts
again when you se lect another selector lever po­
sition and take your foot
off the brake pedal.
If yo u select the R pos ition dur ing a Stop phase,
the eng ine will start agai n.
Shift from D to P quickly to p revent t he engine
from sta rting unintentionally whe n shifti ng
through R .
Drivi ng
You can de termine for yourse lf if the engine w ill
stop or not by red ucing or increasing the amount
of force you use to press the brake pedal. For ex ­
amp le, if you only lightly press on the brake ped­
al in stop-and-go traffic or when turning, the en­
gine will not switch off when the vehicle is sta ­
t io nary . As soon as you press the b rake down
harder, the engine w ill switch off.
(0 Tips
-Press the brake pedal during a Stop phase
t o keep the vehicle from rolling.
- The ignit ion w ill tur n
off if you press the
!S T ART ENGINE STOPI button d uring a stop
phase.
General information
Applies to: vehicles w ith Start/Stop system
The standard Start/Stop mode con be canceled
for various system-related reasons.
Eng ine does not sw itch off
Befo re each stop phase, the system checks if cer­
ta in conditions have been met. If the
r,J indica­
tor light appears in the instrument cluster dis­
play, the eng ine will not be stopped, for examp le
i n t he following situat ions :
- The engine has not reached the minim um re­
quired tempe rature for Start/Stop mode .
- The interior temperature selected by the A/C
system has not been reached.
- The outside temperature is extremely high/low.
-The winds hield is being defrosted
c:> poge 71.
-The pa rking sys tem* is be switched on.
- The ve hicl e battery cha rge level is too low.
- The steering wheel is t urned at a sha rp angle or
is moving.
- After engaging the reve rse gear .
- On sharp inclines.
Engine automat ically restarts
T he standard Start/Stop mode wi ll be canceled
during a stop phase in the following sit uat ions .
The engine restarts without any action by the driver .
79

Driving
-The interior temperature differs from the tem­
perature se lected in the A/C system.
- The windshield is being defrosted~
page 71.
-The brake pedal is pressed seve ral t imes in a
row.
- The vehicle ba tte ry charge leve l is too low.
- Power consumption is high .
Ignition is switched off automaticall y
To prevent the veh icle battery from drain ing, the
ignit ion will switch off
automatically under the
following conditions:
- The vehicle must have already been driven.
- The Start/Stop system has stopped the engine.
- T he driver's door must be open .
- T he driver's safety be lt mus t be unb uck led.
- The brake pedal must not be p ressed .
- The vehicle must be stationary .
In this case, the activated low beam is replaced
by the parking light. The parking lights will
sw itch off after app roximately 30 minutes or
when you lock the vehicle .
If the Start/Stop system has not turned off the
engine or if you have sw itched the Start/Stop sys­
tem off manually, the ignition will not be auto­ mat ically switched off and the engine w ill conti n­
ue to ru n ~ & .
A WARNING
To red uce the risk of poisoning, neve r allow
t he engine to r un i n confined s paces.
(D Tips
If you select the D, N or S selector lever posi­
tion after shifting into reverse, the vehicle
m ust be driven faste r than 6 mph (10 km/h)
in orde r fo r the engine to switch off again.
80
-
Manually switching the Start /Stop system
off /on
Appl ies to : vehicles wi th Start/Stop sys te m
If you do not wish to us e th e system, you con
switch i t off manually.
Fig . 93 Ce nte r console: Start/Stop system butto n
.,. To switch the Start/Stop-System off/on man­
ually, press the
l (A) ~I button. The LED in the but­
ton turns on when the system is switched off.
0) Tips
If yo u switch the system off d uring a stop
phase, the engine will start aga in automati­
cally .
Messages in the instrument cluster display
Applies to : vehicles wit h Start/Stop syste m
Start-stop system deactivated: Please restart
engine manually
This message appears w hen spec ific cond itions
are not me t during a stop phase. The S tart/S top
system will
not b e a ble to re sta rt the eng ine. If
the D or R se lector lever positions were engaged,
P will be selected a utomat ically . The eng ine must
be started with the
I START ENGI NE STOPI but­
ton.
Start -stop system: System fault! Currently
unavailable
There is a ma lfunction in the Start/Stop system.
Drive the vehicle to an authorized Audi dealer or
aut horized Serv ice Facility as soon as possible to
have the malfunction corrected .