2015 AUDI A8 brake light

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Instruments and warning/indicator lights 19
If the fl indicator light turns on, ESC was re­
stricted using the
[fil button¢ page 197.
Stabilization control (ESC/ABS): Fault! See
owner's manual
If the: G1 indicator light and the ABS indicator
light
tll1 (USA models) I ii] (Canada models)
turn on and the message appears, the ABS or
e lectronic differential lock is ma lf u nction ing.
This a lso causes the ESC to malfunction . The
brakes sti ll function with their normal power,
but ABS is not act ive .
Drive to your authorized Aud i dea ler or quali ­
fied workshop immediately to have the mal ­
function corrected.
A WARNING
If the . (USA models) . (Canada mod­
els) brake system indicator light turns on
together with the ABS and ESC indicator
lights, the ABS/ESC regulating function
may have failed. Functions that stabilize
the vehicle are no longer avai lab le. This
could cause the vehicle to swerve and in­
crease the risk of sliding. Drive carefully to
the nearest authorized Audi dealer or oth­
er qualified workshop and have the mal ­
function corrected .
(D Tips
For additional information on ESC and
ABS, refer to¢
page 197.
ABS!( @)) Anti-lock braking system (ABS)
This warning/indicator light monitors the ABS
and the electronic differential lock (EDL).
The warning/ind icator light tll1 (USA mod-
e ls)
;tlJ (Canada models) will come on for a
few seconds when the ignition is switched on.
The light will go out after an automatic check
sequence is completed.
There is a malfunction in the ABS when:
- T he warning/indicator light does not illumi­
nate when you switch the ignition on. -
The warning/indicator light does not go out
after a few seconds .
- The warning/indicator light il luminates
while driving.
T he ESC indicator lig ht also illuminates if
there is a malfunction in the ABS. The mes­
sage
Stabilization control (ESC/ABS) Fault!
See owner's manual
also appears in the in­
strument cluster display and a warning tone
sounds.
The brake system will still respond even
without the assistance of the ABS system.
See your authorized Audi dealer as soon as
possible to restore full braking performance.
For more information regarding the ABS
¢pag e 197.
Malfunction in the brake system
If the brake warning light¢ page 14 and the
ABS warning illuminate
together there may be
a malfunction in the ABS, and there may a lso
be a malfunct ion in the brake system itself
¢.&. .The ABS will not work and you will no­
tice a change in braking response and per­
formance.
In the event of a malfunction in the brake
system
the warning/indicator light . (USA
models) . (Canada models) in the instru­
ment cluster flashes ¢
page 14.
Malfunction in the electronic differential
lock (EDL)
The EDL works together with the ABS. The
ABS warning light will come on if there is a
malfu nction in the EDL system ¢
page 197.
See your authorized Audi dealer as soon as
poss ible.
A WARNING
-
-If the tll1 (USA models) ;tl] (Canada
models) warning light does not go out,
or if it comes on while dr iving, the ABS
system is not working properly. The vehi­
cle can then be stopped only w ith the
standard brakes (without ABS). You w ill
not have the protect ion ABS provides. ..,.

20 Instrum ent s a nd w arn in g/i ndic ato r light s
Contact your Audi dealer as soon as pos­
sible.
-USA models: If the . war ning light, the
DJ warn ing light and the fi1 warning
light come on together, the rear wheels
could lock up first under hard braking.
Rear wheel lock-up can cause loss of ve­
hicle control and an accident. Have your
vehicle repaired immediately by your au­
thorized Aud i deale r or a qua lified wor k­
shop. Drive slowly and avo id sudden,
hard brake applications .
-Canada models: If the brake warn ing
light ., the
Ji) warning light and the
ABS warning light
[ill come on together,
the rear wheels could lock up first unde r
hard braking. Rear wheel lock-up can
cause loss of vehicle control and an acci­
dent. Have your vehicle repaired immed i­
ately by your authorized Audi dealer or a
qualified wo rkshop. Dr ive slowly and
avo id sudden, hard brake applicat ions.
(0) Worn brake pads
Ei'I Brak e pa ds!
If the warn ing light illum inates, immediately
contact your authorized Audi dealer or quali­
fied workshop to have all brake pads inspect­
ed. O n USA models the wa rning light
Ei'I
comes on together with t he warn ing light •.
Both sets of b ra ke pads on an axle must a l­
ways be rep laced at the same time.
A WARNING
Dr iv ing with bad brakes can cause a colli­
sion and serious personal injury.
- If the wa rning light
Ei'I and the warning
light
. ll with the message Brake pads!
comes on in the instrument cluster dis­
play, immediately contact your author­
ized Audi dea ler or qualified workshop to
have all brake pads checked or rep laced if
necessary.
l ) . : USA mode ls on ly
EPC Electronic power control
Applies to veh icles: w ith gasoline engine
This warning/indicator light monitors the
electronic power control .
The Di warning/ indicator light (Electron ic
Power Control) illuminates when you sw itch
the ignit ion on as a function check.
(D Tips
If this warning/ indicator light illum inates
while you are driving, then there is a mal­
funct ion in the engine electronics. Have
the malfunct ion corrected as soon as pos­
s ible by your authorized Audi dealer or
qualified workshop.
W Glow plug system
Applies to veh icles: w ith diesel engine
The control light illuminates when the glow
plug system is active.
If the II ind icator light illuminates, the glow
plug system is act ive. You should start the en­
gine immediately after the ind icator light
swi tches off. The ind icator lig ht only illum i­
na tes for approximate ly 1 second if the en­
gine is warm or if the outs ide temperature is
above 46 QF (8 QC).
(D Tips
-If the glow plug indicator l ight i llum i­
nates while dr iving, there is an eng ine
cont ro l ma lfunction. The engine should
be checked immed iate ly .
- If the ind icator light does not illuminate
at a ll when switch ing the ignit ion on,
there may be a malfunction in the glow
plug system. The engine should be
checked.
' o Malfunction Indicator Lamp (MIL)
The Ma lfunction Indicator Lamp ( MIL) is part
of the On-Board Diagnost ic (080 II) system.
T he symbo l¢..,, lights up whe n the ignition is ...

76 Seats and storage
become a hazard for vehicle occupants in
the event of sudden braking or a crash.
- Always remove objects from the instru­
ment panel. Any items not stored could
slide around inside the vehicle while driv­
ing or when accelerating or when apply­
ing the brakes or when driving around a
corner.
- When you are driving make sure that
anything you may have placed in the cen­
ter console or other storage locations cannot fall out into the footwells. In case
of sudden braking you would not be able
to brake or accelerate.
- Any articles of clothing that you have
hung up must not interfere with the driv­
er's view. The coat hooks are designed
only for lightweight clothing. Never hang
any clothing with hard, pointed or heavy
objects in the pockets on the coat hooks.
During sudden braking or in an accident -
especially if the airbag is deployed -
these objects could injure any passen­ gers inside the vehicle .
- To reduce the risk of personal injury in an
accident or sudden stop, always keep the
glove compartment closed while driving .
- Read and follow all WARNINGS
¢ page 170, Important safety instruc­
tions on the side airbag system.
- Hang clothes in such a way that they do
not impair the driver's vision.
- The coat hooks must only be used for lightweight clothing . Do not leave any
heavy or sharp edged objects in the pock­
ets which may interfere with the side cur­
tain airbag deployment and can cause
personal injury in a crash.
- Do not use coat hangers for hanging
clothing on the coat hooks as this can in­
terfere with proper deployment of the
side curtain airbags in an accident.
- Do not hang heavy objects on the coat
hooks, as they could cause personal in­
jury in a sudden stop.
(D Note
Objects located on the rear shelf that rub
against the rear window could damage the
heating wires for the rear window defog­
ger.
@ Tips
- A vent slot is located between the shelf
and the rear window. Do not block the
vent with any items you may place on the
rear window shelf.
- Do not place bulky items on the rear win­
dow shelf as they could restrict or block
the driver's vision in the rear view mirror.
Cooler
Introduction
Applies to vehicles: wi th coo ler
Please clean the cooler before using it for the
first time ¢
table on page 216.
You can only switch on the cooler if
- the temperature in the luggage compart­
ment is below 131 °F (55 °C). The cooler
switches off automatically if the tempera­
ture in the luggage compartment exceeds
131 °F (55 °C). Once the temperature falls
below 131 °F (55 °C) again, the cooler
switches on again automatically.
- the battery is adequately charged. The cool­
er switches off automatically if the vehicle
battery voltage falls below a minimum lev­
el. This prevents the battery from discharg­ ing. The cooler switches back on again auto­
matically when the battery voltage increases
again (e .g. after starting the engine).
The cooler cools to 42.8 °F
(+ 6 °C) and the
freezer cools to 21.2 °F (-6 °C) in optimum
cooling conditions. The cooling performance
is affected by the temperature in the luggage
compartment . The temperature inside the
cooler will be higher if the luggage compart-
ment is hot. .,.

the stored position as soon as you switch on
the ignition.
Starting and stopping
the engine
Starting the engine
This button switches on the ignition and
starts the engine .
Fig. 88 Cente r console: S TART ENGINE S TOP b utto n
Swi tc hin g the i gni tion on/off
• To switch the ignition on/off, press the
I START ENGINE STOPI button . Do not press
the brake pedal while doing this . D iesel
vehicles are preheated wh ile the ignition is
switched on.
St art in g the engine
• Press the brake pedal~,&. .
• Press the
!START E NGINE STOPI button
~ fig . 88 . The engine will start.
• It is possible that there w ill be a slight delay
when start ing the engine for diesel vehicles
in colder temperatures. Therefore, you must
hold the brake peda l down until the eng ine
starts. The indicator lamp
II illuminates
when the engine is preheated.
If the engine does not start immediately , the
starting process is automatica lly stopped af ­
ter a short time . Repeat starting procedure.
Start -Stop -System *:
Note the information on ¢ page 87, Start­
Stop-System.
On th e road 83
A WARNING
- Never allow the engine to run in confined
spaces -danger of asphyxiat ion.
- Never turn off the engine until the vehi­
cle has come to a complete stop.
- The brake booster and power steering
only work when the engine is running. If
the engine is off, you have to use more
force when steering or braking . Because
you cannot steer and brake as you usual­ ly would, this could lead to crashes and
serious injuries.
(D Note
- Avo id h igh engine rpm, full throttle and
heavy engine loads until the eng ine has
reached operating temperature -other­
w ise you risk engine damage .
- T he engine cannot be started by pushing
or towing the vehicle.
(0 Tips
- After a co ld eng ine is started, there may
be a brief period of inc reased no ise be­
cause oil pressure must first build up i n
the hydraulic valve adjusters. This is nor­
ma l and not a cause for conce rn.
- If you leave the veh icle with the ignition
switched on , the ign ition w ill switch off
after a certain period of time . Please
note that electrical equ ipment such as
exterior lights will sw itch off as well
when that happens.
Stopping the engine
• Bring your vehicle to a complete stop.
• Move the selector lever to the P or
N posi ­
tion.
• Pr ess the I START ENGINE STO P I button
¢ page 83 , fig. 88.
Steerin g lock
The steering locks when you turn the engine
off using the
I START ENGINE STOP I button
and open the d river's door. The locked steer-
ing helps prevent vehicle theft.
11-

84 On th e road
Emerg ency off
If necessary, the engine can be sw itched off
with the selector lever in the R, Dor S posi ­
tions . The engine stops if you press the
I START ENGINE STOP ! button at speeds below
6 mph (10 km/h).
A WARNING
- Never turn off the eng ine before the ve­
hicle has come to a complete stop . The
full function of the brake booster and the
power steering is not quaranteed. You
must use more force to turn or brake if
necessary. Because you cannot steer and
brake as you usual ly would, this could
lead to crashes and serious injur ies.
- For safety reasons, you should always
park your vehicle with the se lector lever
in P. Otherwise, the vehicle co uld inad­
vertent ly roll away .
- After the engine has been switched off, the radiator fan can continue to run for
up to 10 min utes - even with the ign it ion
switched off. It can a lso switch on aga in
after some time if the coolant tempera­
ture rises as the result of a heat buildup or if the engine is hot and the engine
compartment is addit ionally heated by
the sun's rays.
(D Note
Do not stop the engine immed iate ly afte r
ha rd or extended dr iving. Keep the engine
r u nning for approx imately two m inutes to
prevent excessive heat build-up.
Driver message in the instrument
cluster display
T urn off ignition before le aving car
This message appears and a war ning tone
sounds if you open the driver's door when the
ignitio n is switched on.
Pr ess brake p edal t o start engin e
This message appears if you press the
I STAR T ENGINE S TOP ! button to start the en- gine and do not depress the brake pedal.
The
engine can only be started if the brake pedal
is depressed.
Ill I s key in th e vehi cle?
If the indicato r light turns on and the mes­
sage appears, the remote control key was re­
moved from the vehicle whi le the engine was
runn ing .
If the igni tion key is not in the veh i­
cle you will not be able to switch on the igni­
tion or restart the engine after it has been switched off. You will a lso not be able to lock
the vehicle from the outs ide.
Shift to P, othe rwi se vehicle can roll away.
Door s do not lock if lever i s not in P.
T h is dr iver message appears for safety rea­
sons if the transmission has not been shifted
to the P position when you switch the ignition
off. Move the selector lever to the P position.
Otherwise the vehicle is not protected from
ro lling and cannot be locked.
II Key i s not recognized . Hold b ack of key
again st m arked are a. See ow ner' s m anual.
If the indicator l ight turns on and this mes­
sage appe ars, there is a ma lfunct ion
¢ page 85.
Tu rn off i gnition before leaving car. Ba ttery
i s di sc harging
Th is message appears if the driver's door is
opened wh ile the ignition is switched on. Al­
ways switch off the ign it ion if you a re leav ing
the vehi cle. See also
¢page 89 .
Shift to P and turn off ignition before l eav­
ing car, otherwi se vehicle c an roll away
This message appears if the driver's door is
opened wh ile the ignition is switched on and
the selecto r lever is not in the P position. Shift
the selector lever into the P pos ition and
switch off the ignit ion when you exit the vehi­
cl e. Otherw ise the vehicle cou ld rol l. See also
¢page 89.

Starting the engine if there is a
malfunction
It may not be possible to start the engine un­
der certain circumstances , for example if the
battery in the vehicle key is drained , if inter ­
ference hos affected the key or if there is a
system malfunction.
i :c _ ____ ;&
Fig. 89 Center console/master key : starting the engine
if th ere is a m alfunction
Requirement : The message Key not re cog­
nized. Hold b ack of key against marked area.
See owner's manual.
must appear and the in­
dicator light
II must switch on .
"' Hold the master key vert ica lly in the loca­
tion indicated
y >>) c::> fig. 89.
"' Press the brake pedal i=:> A in Starting the
engine on page 83 .
"'Press the j ~s_T_A_R_T_E_N_G _I_N _E_ S_T_O_P~I button . The
engine will start .
"' Drive to your au thor ized Audi dealer imme­
diately to have the malfunct ion corrected .
(D Tips
You can view the message again by press­
ing the
! START ENGINE STOP I button.
On the road 85
Electromechanical
parking brake
Operation
The electromechanical parking broke replaces
the hand broke.
Fig. 90 Center co nsole: Parking b rake
"' Pull on the switch © i=:> fig. 90 ® to apply
the parking brake. The indicator lights in the
switch and. (USA models)/ . (Cana-
da models) in the instrument cluster illumi­
nate .
"' With the ignition switched on, step on the
brake peda l or the accelerator pedal and
press the switch <®lat the same time to re­
lease the parking brake . The indicator lights
in the switch and. (USA mode ls)/ . (Can­
ada models) in the instrument cluster go
out .
Your vehicle is equipped with an electrome­
chanical parking brake. The parking brake is
designed to prevent the vehicle from rolling unintentionally and replaces the hand brake.
In addit ion to the normal functions of a tradi­
tiona l hand brake, the electromechanical
parking brake provides vario us convenience
and safety functions .
When starting from rest
-The integral start ing assist helps you when
driving by automatically re leasing the park­
i ng brake
i=:> page 86, Starting from rest.
- When start ing on inclines , the starting as-
sist prevents the vehicle from unintentiona l-
ly rolling back. The braking force of the
parking brake is not re leased until sufficient
111>

86 On the road
driving force has been built up at the
wheels.
E mergency brake function
An emergency brake ensures t hat the vehicle
can be slowed down even if the
normal brakes
fail
c::> page 87, Emergency braking .
&_ WARNING
Do not press the accelerator peda l inadver ­
tently if the vehicle is stationary but the
engine is running and a gear is selected.
Otherw ise the vehicle will start to move
immediately and could result in a crash.
- If the parking brake is applied with the
ignition switched off, the indicator lights
in the sw itch and . (USA models) .
(Canada models) in the instrument clus­
ter will go out after a certain per iod of
time.
- Occas iona l noises when the park ing
brake is applied and released are normal
and are not a cause for concern.
- When the vehicle is parked, the parking brake goes through a self-test cycle at
regular intervals. Any assoc iated noises
are no rma l.
Parking
.. Press the bra ke peda l to stop the vehicle .
.. Pull the switch© to set the parking brake .
.. Se lect the P selector lever position
c::> page 114.
.. Turn the eng ine off c::> ,& .
.. When on incl ines or declines, turn the steer­
ing wheel so that your vehicle will roll into
the curb if it begins to move.
&_ WARNING
- When you leave your veh icle - even if on­
ly b riefly - always take the ignition key
with you. This applies par tic u larly when
children remain in the veh icle . Otherw ise
the chi ldren could start the engine, re-
'
lease the parking brake or operate elec­
tr ica l equipment (e.g. power windows).
There is the r isk of an accident.
- When the veh icle is locked, no one - par­
ticularly not children should rema in in
the vehicle. Locked doors make it more difficult for emergency workers to get in­
to the vehicle - putting lives at risk.
Starting from rest
The starting assist function ensures that the
parking brake is released automatically upon
starting.
Stopping and applying par king brake
.. Pull the sw itch<®> to apply the parking
brake.
Sta rting and automaticall y rel easing the
park ing bra ke
.. When you start to drive as usual, the park­
ing brake is automat ically released and your
veh icle beg ins to move.
When stopping at a traffic signal or stopping in city traffic, the parking brake can be ap­
plied . The vehicle does not have to be held
with the footbrake. The parking brake elimi­ nates the tendency to creep w ith a dr ive range
engaged . As soon as you drive off as usual,
t h e pa rking brake is re leased automatically
and the vehicle s tarts to move .
Sta rting on slopes
When starting on inclines, the starting assist
prevents the vehicle from u nintent ionally roll­
i ng back. The braking force of the parki ng
brake is not re leased unti l suffic ient d riving
force has been built up at the w heels.
(D Tips
Fo r safety reasons, the pa rking brake is re­
l eased automatically on ly when the d riv ­
er's safety belt is engaged in the buckle.

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Starting off with a trailer
To prevent rolling back unintentionally on an
incline, do the following:
11-Keep the switch© pulled and depress the
accelerator. The parking brake stays applied
and prevents the vehicle from rolling back­
ward .
11-You can release the switch<®> once you are
su re that you a re develop ing enough for­
ward momentum at the wheels as you de­
press the accelerator.
D epending on the weight of the r ig (vehicle
and tra ile r) and the severi ty of the incl ine, you
may roll backwards as you start. Yo u can pre­
vent rolling backwards by holding the parking brake switch<®) p ulled out and acce lerating -
just as you would when starting on a hill with
a conventional hand brake.
Emergency braking
In the event that the conventional brake sys­
tem fails or locks.
11-In an emergency, pull the switch(®) and
contin ue to p ull it to slow your vehicle down
with the parking brake.
11-As soon as you release the switch (®) or ac-
ce lerate, the braking process stops.
If you pull the switch<®> and hold it above a
speed of about 5 mph (8 km/h), the emergen­
cy braking function is initiated. The vehicle is
braked at all four wheels by activating the hy­
draulic brake system. Th e brake performance
i s similar to making an emergency stop
~ &..
In order not to activate the emergency brak­
ing by m istake, an audible warning tone (buz­
ze r) sou nds when the switch C®> is pulled. As
soon as the switch(®) is released, or the accel­
e rator pedal is dep ressed, emergency b ra ki ng
stops.
_& WARNING
Emergency braking should only be used i n
an emergency, when the normal foot brake
has failed or the brake pedal is obstructed .
On the ro ad 87
Using the parking b rake to pe rform emer­
gency brak ing will slow your vehicle down
as if you had made a full brake application.
The laws of physics cannot be suspended
even with ESC and i ts associated compo­
nents (ABS, ASR, EDL). In corners and
when road o r weathe r cond itions are bad,
a full brake appl ication can ca use the vehi­
cle to sk id or the re ar end to break away -
risking an acciden t.
Start-Stop-System
' Description
Applies to vehicles: wit h Start -Stop-System
The Start-Stop-System can help increase fuel
economy and reduce CO2 emissions .
In the Start-Stop-mode, the engine shuts off
automat ica lly w hen the vehicle is stopped,
such as at a traffic light. The ignition remains
switched on du ring this stop phase. The en­
gine wi ll be automat ica lly restarted when
needed.
The last Start-Stop-System sett ing (on/off us­
ing the button
I O\l ~I) will be restored when the
i gnition is turned on. The L ED in the
1(7() .. 1 but­
ton turns on when the Star t-Stop-System is
swi tched off man ually.
Basic requirements for the Start -Stop
mode
- The d rive r's doo r is closed.
- The d river ' seat belt is latched .
- The hood is closed .
- The vehicle must have been driven faster
than
2.5 mph (4 km/h) since the last stop.
- A trailer is not hitched to the vehicle.
_& WARNING
-Never let the vehicle roll with the eng ine
sw itched off. You cou ld lose control over
the vehicle. Th is can lead to a collision
and serio us in ju ries.
- The brake booster and the steering sup­ port do not work while the engine is