2015 AUDI A4 brake

'"" N
0 ::.,: co ,...., \!) 1.1"1 ,...., 1.1"1 ,....,
Instrument s and warnin g/indic ator ligh ts 19
A WARNING ,~ ~
If the ~ (USA models)/ . (Canada
models) brake system indicator light turns
on together with the ABS and ESC indica­
tor lights, the ABS/ESC regulating function
may have failed. Functions that stabilize
t he vehicle are no longer avai lab le. This
cou ld cause the vehicle to swerve and in­
crease the risk of sliding . Drive caref ully to
the nearest a uthorized Audi dea ler and
have the malfunction corrected.
(D Tips
For addit ional information on ESC and
ABS, refer to
c::> page 185 .
ABS/(@!) Anti-lock braking system (ABS)
This warning/indicator light monitors the ABS
and the electronic differential lock (EDL).
The warning/indicator light rII:1 (USA mod ­
els)/ [I] (Ca nada models) w ill come o n for a
few seconds when the ignition is switched on.
The light will go out after an a utomatic chec k
sequence is completed.
There is a malfunction in the ABS when :
- The warning/ indicator lig ht does not illumi ­
na te when you swi tc h t he ignition on.
- T he warning/i ndicator lig ht does not go out
after a few seconds .
- T he warn ing/ind icator lig ht illuminates
wh ile driving.
T he ESC indicator light also illuminates if
there is a malfunction in the ABS . The mes­
sage
Stabilization contro l (ESC) : Fault! See
owner 's manual
also appears in the inst ru­
men t clus ter display and a war ning tone
sounds.
Th e brake sy ste m will still respond even
without th e assi stan ce of the ABS sy ste m .
See y our authoriz ed Audi dealer a s soon a s
po ssibl e to re store full braking performan ce .
For more informat ion regarding the ABS
c::> page 185.
Malfunction in the brake system
If the brake war ning l igh t c::> page 15 and the
ABS wa rning illuminate
together there may be
a malfunct ion in the ABS , and there may a lso
be a malfunction in the brake system itself
c::> A . The AB S will not wo rk and you w ill no ­
tice a change in b raking response and per ­
formance .
In the event of a malfunction in the brake
s y stem
the warning/indicator light~
(USA mode ls)/ . (Can ada models) in the in­
strument cluster flas hes
c::> page 15.
Malfunction in th e electronic diff erential
lock (EDL)
The EDL works together w ith the ABS. The
ABS warning light will come on if there is a malfunction in the EDL system
c::> page 185 .
See your author ized Audi dealer as soon as
poss ible.
A WARNING
- I f the trm (USA mode ls)/ [I] (Canad a
models) warning light does not go ou t,
-
or if it comes on while dr iving, the ABS
system is not wor king p roperly. The vehi­
cle can then be stopped only w it h the
standard brakes (without ABS). You w ill
not have the protect ion ABS prov ides.
Contact your authorized Audi dealer as
soon as possible .
-USA models: If the ~ warning light
a nd the
trm warning light come on to­
gethe r, the rear wheels could lock up
f ir st under hard bra king. R ear wh eel lock­
up can ca use loss of vehicle control and
a n ac cident . H ave yo ur vehicle repaire d
immed iate ly by yo ur authorize d Aud i
dea le r o r qualified works hop. Drive slow­
ly and avo id sudden, hard brake applica­
tions.
- Canada models: If the brake warning
light . and the ABS warning light
[I]
come on together, the rear wheels could
lock up first under hard braking. Rear
wheel lock-up can cause loss of vehicle
con tro l and an accident. Have your

20 Instruments and warning /indicator lights
vehicle repaired immediately by your au­
thorized Audi dealer or qualified work­
shop. Drive slowly and avo id sudden,
hard brake applications.
~ J!f Safety systems
The
II (USA models)/ m (Canada models) in­
d icator light monitors the safety systems (e .g .
a ir bags, pretensioners) and illuminates for a
few seconds each time you switch the ignition
on.
If the
ffl (USA models)/ EI (Canada models)
indicator light does not go out, or if it illumi­
nates whil e you are driv ing, or if it sta rts to
b link , then there is a malf unction somewhere
in the system. If the light does not illuminate
when you switch the ignition on, this also
means there is a ma lfunction.
A WARNING
If you have a malfunction in the safety sys­
tems, contact your authorized Audi dealer
immediately . Otherwise the safety sys­
tems may not work properly in an acci­
dent .
(0) Worn brake pads
Ell Brake pads!
If the warning light illumina tes, immediately
contact your authorized Audi dealer or quali ­
fied workshop to have all brake pads inspect­
ed. On USA models the warning light
Ei'I
comes on together with the warn ing light
1111 -Both sets of b rake pads on an axle
must always be replaced at the same time .
A WARNING
Driving with bad brakes can cause a colli­
sion and serious personal injury.
- If the warning light
Ell and the warning
light
11111 ) with the message Brake
pads! comes on in the instrument cluster
l) - : USA mod els only
-
display, immediately contact your au­
thorized Audi dealer or qualified work­
shop to have all brake pads checked or replaced if necessary.
EPC Electronic power control
This warning/indicator light monitors the
electronic power control.
The ~ warning/indicator light (Electronic
Power Control) illuminates when you switch
the ignition on as a function check.
(D Tips
If this warning/indicator light illuminates
while you are driving, then there is a mal­
function in the engine electronics. Have
the malfunct ion corrected as soon as pos­
sible by your authorized Audi dealer or a
qualified repair facility.
0 Malfunction Indicator Lamp (MIL)
Th e Ma lfunction Indicator Lamp (MIL) is part
of the On-Board Diagnostic (OBD II) system.
T he symbo l¢• lights up when the ignition is
switched on and will turn off after the engine
has started and has settled at a constant idle
speed. This indicates that the MIL is working
properly.
T he warning light illuminates when there is a
malfunction in the engine electronic system .
Contact your authorized Audi dea ler and have
the malfunction corrected.
An improperly closed fuel filler cap may a lso
cause the MIL light to illuminate
~ page 210.
For more information ~page 29.
!?; Engine speed limitation
Applies to vehicles: with engine speed limitation
(II Do not exceed max. engine speed of
XX.XX rpm

M N
~ co
rl I.O
"' rl
"' rl
close to this position as possible
c:>page 63.
A WARNING
Never place any objects in the driver's foot­
well. An object could get into the pedal
area and interfere with pedal function. In
case of sudden braking or an accident, you
would not be able to brake or accelerate .
Front passenger's seat
Always move the front passenger seat into
the rearmost position .
To avoid contact with the airbag while it is de­
ploying, do not sit any closer to the instru­
ment panel than necessary and always wear
the three-point safety belt provided adjusted
correctly . We recommend that you adjust the
passenger's seat in the following manner:
.,. Bring the backrest up to an (almost) upright
position.
Do not ride with the seat reclined .
"" Applies to vehicles with adjustable head re­
stra ints: Adjust the head restraint so the up­
per edge is as even as possible with the top
of your head. If that is not possible, try to
adjust the head restraint so that it is as
close to this position as possible
c:> page 63.
.,. Place your feet on the floor in front of the
passenger's seat .
Front seats
Manual seat adjustment
Appl ies to vehicles: with manu ally a djustable seats
Fig. 61 Fr ont seats: manual seat adjustment
Seats and storage 61
Controls
@-Moving the seat forward/back: pull the
lever and slide the seat
c:> A.
@ -Lengthening/shortening the upper thigh
support*: lift the handle. A spring moves the
support forward
c:> ,& .
@ -Adjust ing the angle* of the seat surface:
pull/press the lever
c:> ,& .
@) -Adjusting the lumbar support*: press the
button in the corresponding position
c:> ,& .
®-Moving the seat up/down: pull/press the
lever
c:> .&. .
@ -Adjusting the backrest angle : turn the ad­
justing wheel
c:> .&..
A WARNING ,--
-Never adjust the driver's or front pas­
senger's seat while the vehicle is moving.
If you do this while the veh icle is moving,
you will be out of position. Always adjust
the dr iver's or front passenger's seat
when the vehicle is not mov ing.
- Be careful when adjusting the seat
he ight. Check to see that no one is in the
way, or ser ious injury could result!
- To reduce the risk of injury in the case of
sudden braking or accident, front pas­
sengers must never rid e in a moving ve­
hicle with the backrest reclined. Safety
be lts and the airbag system on ly offer
maximum protection when the backrest
is upright and the safety belts are prop ­
erly positioned on the body. The more
the backrest is reclined, the greater the
risk of personal injury from an incorrect
seating position and improperly posi­
tioned safety belts.

66 Seats and st o rage
12-volt socket
Appl ies to vehicles: wit h 12-volt socket
Electrical accessories can be connected to the
12-volt socket.
Fig. 70 allroad Luggage compartment s ide trim: sock·
et
Fig . 71 Center conso le: socket
.,. Open the socket cover~ fig. 71 .
.,. Insert the plug of the e lectrical device into
the socket.
The 12-volt socket can be used for electrical
accessories. The power input must not exceed
120 watts.
There is an additional 12-vo lt socket in the
center console .
Before you purchase any accessories, always
read and fo llow the information in
~ page 285, Additional accessories and parts
replacement .
.&_ WARNING
The socket and the electrica l accessories
connected to it operate only when the igni­
tion is switched on. Incorrect usage can
lead to serious injuries or burns. For this
reason, children should never be left unat-
-
tended in the veh icle because this increas­
es the risk of in jury.
(D Note
- Never connect equipment that generates
electrical current, such as a solar pane l
or battery charger, to the 12-vo lt socket.
Th is could damage the vehicle's electri­
cal system.
- To avoid damaging the socket, only use
plugs that fit properly.
(D Tips
When the engine is off and accessories are
still plugged in and are on, the vehicle bat­
tery can still be drained.
Storage
General overview
.&_ WARNING
-
- Always remove objects from the instru-
ment panel. Any items not put away
could slide around ins ide the veh icle
while driving or when accele rat ing or
when applying the brakes or when dr iv­
ing arou nd a corne r.
- When you are dr iving make su re that
anyth ing you may have placed in the cen­
ter conso le or other sto rage locations
can not fall out i nto the footwe lls. In c ase
of sudden braking you would not be able
to brake, dep ress the clutch o r acce ler ­
ate.
- Any pieces o f clothing that you have
hung up m ust not interfere with the driv­
er's view. The coat hooks are des igned
only for lightweight cloth ing. Never hang
any clothing with hard, pointed or heavy
objects in the pockets on the coat hooks .
During sudden braking or in an accident -
especia lly if the a irbag is d eployed -
these objec ts co uld inju re any passen­
gers inside the ve hicl e.
-

68 Seats and stor age
Addit ional storage
There are a variety of storage compartments
and fasteners in var ious places in the vehicle.
- In the roof headliner above the rearview
mirror .
- On the back of the front seat . The com pa rt­
ment can hold a maximum weight of 1 kg.
- On the left and right of the luggage com­
partment, behind the side trim.
- Garment hooks on the pillars in the rear of
the vehicle .
A WARNING
-When driving, do not leave any hard ob­
jects on the rear window shelf or allow your pet to s it on the shelf. They could
become a hazard for ve hicle occupants in
the event of sudden braking or a crash.
- Always remove objects from the instru­
ment pane l. 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 v iew. 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
i=> page 161, 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
cloth ing on the coat hooks as th is can in­
terfere with proper deployment of the
side curtain air bags in an accident.
- Do not hang heavy objects on the coat
hooks, as they could cause personal in­
jury in a sudden stop.
- Always keep the compartment above the
rea rv iew mirror closed while driving to
red uce the risk of injury in the event of
sudden braking maneuvers or a collision.
(£} Note
Objects located on the rear shelf that rub
against the rear window could damage the
heating wires for the rear window defog"
ger.
(D Tips
-A vent slot is located between the shelf
and the rear windo w. Do not block the
vent with any items you may place on the
rear window she lf.
- 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.

'"" N
0 ::.,: co ,...., \!) ..,.,
,...., ..,., ,....,
~ Automatic transmission: Step on the brake
peda l and move the se lector lever to the P
or N position .
~ Press the key c::> fig. 97 -the eng ine will
start.
Sw itching the i gnition on /off
If you wou ld like to switch the ignition on
without sta rting the engine, follow t hese
steps :
~ Insert the key into the ignition lock .
~ Press the key briefly without pressing the
clutch peda l (for manual transmissions) or
the brake peda l (for automatic transmis­
s ions) .
~ To switch the ignition off, press the key
again .
When starting the engine, major e lectr ica l
loads are switched off temporarily .
You can on ly remove the key with the ignition
switched off.
If the engine sho uld not sta rt immedia tely,
the starting process is automatically stopped
after a short time. Repeat starting proced ure .
A WARNING
-Never allow the engine to run in confined
spaces -danger of asphyxiation.
- Never remove the ign ition key from the
ignition look while the vehicle is moving.
Otherw ise, the steering lock could sud­
denly engage and you would not be able
to steer the vehicle.
- Always take the key with you whenever
you leave your vehicle . Otherwise, the
engine could be started or e lectr ical
equipment such as the power w indows
cou ld be operated. This ca n lead to seri­
o us inj ury.
- Never leave ch ild ren or persons requiring
assistance unattended in the veh icle. The
doors can be loc ked using the remote
transmitter, preventing people from es­ caping from the vehicle on their own in
the event of an emergency. Depend ing
on the time of year, people inside the ve-
On th e ro ad 83
hicle can be exposed to very high or very
low temperatures.
(D Note
Avoid high eng ine rpm, fu ll throttle and
heavy engine loads unti l the engine has
reached operating tempe rat ure -other­
wise you r isk eng ine damage.
@ For the sake of the environment
Do not let the engine run while parked to
warm up. Begin driving immediately. This
reduces unnecessary emissions.
@ Tips
- If the key cannot be removed from the
ignition lock, you have to pull the me­
chanical key out of the master key in or­
der to be able to lock the vehi-
cle <=:>
page 34.
-After starting a cold engine, there may
be a brief period of increased no ise be­
cause the oil pressure must first bu ild up
in the hydraulic valve adjusters. This is
normal and not a cause for concern.
- If you leave the veh icle with the ignition
switched on, the ign it ion w ill switch off
afte r a certa in per iod of t ime . Please
note that ele ctrical equ ipment such as
exterior lights will sw itch off as well
when that happens .

84 On the road
Starting the vehicle with the emergency
key
Applies to vehicles: with ig ni tion lock
You can use the emergency key as an ignition
key in on emergency.
Fi g. 98 Glove compar tme nt: Adapter for emergency
key
Fig. 99 Inse rt emergency key into the adapter
.. Take the adapter for the emerge ncy key out
of the glove compartment
c!> fig . 98 .
.. Push the emergency key c::> fig. 99 fully into
the adap ter . Make sure tha t the Aud i rings
are facing up.
.. Press the emergency key in the adapter
down until it latches audibly .
.. Insert the adapte r with the emergency key
forward into the ignition switch. The engine
can now be started as usual.
Stopping the engine
App lies to vehicles: with ig n ition lock
.. Bring the vehicle to a full stop .
.. Automatic transmission: Move the selector
lever to the P or N pos ition .
.. Press on the ignition key. The engine is
t ur ned off.
.. You can now remove the key.
Steering lock
T he steering locks when yo u remove the igni­
t ion key. The locked steering helps prevent
ve ­
hicle theft .
Emergency off
If it is necessary in unu sual circumstances, the
engine can be switched off while the veh icle is
moving. The engine will be switched off if you
press on the key for an extended period .
A WARNING ~
-Never turn off the engine before the ve­
hicle has come to a comp lete stop. The
fu ll function of the brake booster and the
power steering is not guaranteed. You
must use more force to turn or brake if
necessary. Beca use you cannot steer and
brake as you usually wou ld, this could
lead to crashes and ser ious injuries.
- For safety reasons, you sho uld a lways
park your vehi cle with the selector lever
in P. O therwise, the vehicle could in ad ­
ver ten tly roll away.
- The radiator fan can continue to run fo r
up to 1 0 minu tes
even after you have
turned off the engine and removed the
ignit ion key. The radiator fan can a lso
turn on agai n if the engine coo lant heats
up because of intense sunlight or heat
bu ild-up in the engine compartment.
- Always take the key with you whenever
you leave your vehicle. Otherw ise, the
engine could be started or electrical
equ ipment such as the power windows
could be operated. This can lead to seri­
ous injury.
- Never leave childre n or persons requiring
assistance unattended in t he vehicle . The
doors can be locked using the remote
transm itte r, preven ting people from es­
c a ping from t he ve hicle on the ir own in
the event of a n emergency . Depending
on the time of year, peop le inside the
ve­
hicle can be exposed to very high or very
low temperatures .

M N
~ co
rl I.O
"' rl
"' rl
CD Note
If the engine has been under heavy load
for an extended period, heat builds up in
the engine compartment after the engine
is switched off- there is a risk of damaging
the engine . Allow the engine to run at idle
for about two minutes before switching it
off.
Convenience key
Starting the engine
Applies to vehicles: with convenience key
The I STAR T ENGINE ST OPI button switches
the ignition on and starts the engine.
Fig. 100 Ce nter console: START ENGINE STOP butto n
Starting the engine
.. Manual transmission: Fully depress the
clutch pedal and
move the shift lever to the
neutral position .
.. Automatic transmission: Step on the brake
pedal and
move the selector lever to P or N
~.&. -
.. Press on the I STAR T ENGINE ST OP I button
~fig . 100-the engine will start.
Switching the ignition on/off
If you would like to switch the ignition on
without starting the engine , follow these
steps :
.. Press the
I START ENGINE STOPI button
without pressing the clutch pedal (for man ­
ual transmissions) or the brake pedal (for
automatic transmissions) .
.. To switch the ignition off, press the button
again.
On the road 85
If the engine should not start immediately,
the starting process is automatically stopped
after a short t ime. Repeat starting procedure .
When starting the engine, major electrical
loads are sw itched off temporari ly.
After a cold engine is started, there may be a
brief period of incr eased noise because oil
pressure must first build up in the hydraulic
valve adjusters. This is normal and not a cause
for concern .
A WARNING
-Never allo w the engine to run in confined
spaces - danger of asphyxiation.
- Never turn off the engine until the vehi­
cle has come to a complete stop.
- 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 operated . This can lead to seri­
ous tnJUry .
- Never leave children or persons requiring
assistance unattended in the vehicle. The
doors can be locked using the remote
transmitter, preventing people from es­
caping from the vehicle on their own in
the event of an emergency. Depending
on the time of year, peop le inside the ve­
hicle can be exposed to very high or very
low temperatures .
CD Note
-Avo id high engine rpm, full throttle and
heavy engine loads until the engine has
reached operating temperature - other­
wise you risk engine damage.
@ For the sake of the environment
Do not let the engine run while pa rked to
warm up. Begin driving immediately. This
reduces unnecessary emissions.
(D Tips
-After starting a cold engine, there may
be a brief period of increased noise be-
cause the oil pressure must first bui ld up
II-