2018 AUDI A4 electronic brake

Table of contents
About this Owner's Manual . .. .. .
Cockpit ... .. ............... .... .. .
Cockpit overview ................ .
Controls at a glance ... .......... .. .. .
Instrument cluster .. .......... .. .. .. .
Multifunction steering wheel plus ... .. .
Multifunction steering wheel ......... .
Driver information system ...... .. .. .. .
H ead-up display .... .. .. ..... ... .. .. .
On-Board Diagnostic System (OBD) .. .. .
I ndicator lights .................... . 6
8
8
8
10
13
16
17
24
24
25
Starting and driving . . . . . . . . . . . . . 37
Opening and closing . . . . . . . . . . . . . 3 7
Central locking . . . . . . . . . . . . . . . . . . . . . . 3 7
L uggage compartment lid . . . . . . . . . . . . .
43
Child safety lock . . . . . . . . . . . . . . . . . . . . . 48
Power windows . . . . . . . . . . . . . . . . . . . . . 48
Sliding/tilting sunroof . . . . . . . . . . . . . . . . 49
Panorama glass roof . . . . . . . . . . . . . . . . . SO
Valet parking function . . . . . . . . . . . . . . . .
51
Garage door opener (Homelink) . . . . . . . . 52
L ights and Vision . . . . . . . . . . . . . . . . . 54
Exterior lighting . . . . . . . . . . . . . . . . . . . . . 54
Interior lighting . . . . . . . . . . . . . . . . . . . . . 57
V1s1on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Windshield wipers . . . . . . . . . . . . . . . . . . .
60
Digital compass . . . . . . . . . . . . . . . . . . . . . 63
Seats and storage . . . . . . . . . . . . . . . . 65
General information . . . . . . . . . . . . . . . . . 65
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 65
H ead restraints . . . . . . . . . . . . . . . . . . . . . 66
Memory function . . . . . . . . . . . . . . . . . . . .
67
Sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Luggage compartment ........ .... .. .
Roof rack .. .. ... ............ .... .. .
Warm and cold ................ .. .
Climate control system .............. .
3 zone deluxe automatic climate control .
Steer ing wheel heating .. ........ .. .. .
2
70
74
76
76
77
79
Driving ... .. .. .. .. .. ... .......... . .
General information . ... ........... . .
Steering .......... .. .. . .......... . .
Start ing and stopping the eng ine ..... . .
Start/Stop system .. .. ............. . .
E le ctromechanical parking brake ...... .
Start ing to drive .. .. .. ........ ..... . .
D rivi ng offroad . .. ... ...... ....... .. .
Automatic transmission
Trailer towing ..... .............. .
Driving with a trailer .. ............. . .
8 0
80
82
83
85
88
89
90
91
99
99
T raile r towing information . . . . . . . . . . . . 100
Driver assistance . . . . . . . . . . . . . . . . . 102
Assistance systems . . . . . . . . . . . . . . 102
Electronic speed limiter. . . . . . . . . . . . . . . 102
Speed warning system . . . . . . . . . . . . . . . . 102
Cruise control system . . . . . . . . . . . . . . . . 102
Camera-based traffic sign recognition . . . 104
Lap timer . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Pred ictive efficiency assist. . . . . . . . . . . . . 107
Audi adaptive cruise contro l . . . . . . . . . . . 108
Pred ictive control (eff ic ie ncy assist) . . . . . 115
Traffic jam assist . . . . . . . . . . . . . . . . . . . . 116
Distance indicat or and distance warnin g 118
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Audi pre sense . . . . . . . . . . . . . . . . . . . . . . 120
Audi pre sense basic . . . . . . . . . . . . . . . . . . 120
Audi pre sense front . . . . . . . . . . . . . . . . . 121
Audi pre sense rea r . . . . . . . . . . . . . . . . . . 122
Audi pre sense city . . . . . . . . . . . . . . . . . . . 123
Settings in the Infotainment system . . . . 124
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Audi active lane assist . . . . . . . . . . . . . . . . 125
Audi s ide assist . . . . . . . . . . . . . . . . . . . . . 128
Audi drive select . . . . . . . . . . . . . . . . . . . . . 133
Parking systems
General information .. ... .......... . .
Rear parking system .. .. ........... . .
Parking aid plus .. .. .. ............. . .
Rearview camera ... .. .. ........... . .
Periphera l cameras ... ... .......... . .
Adjusting th e parking aid . ........... .
136
136
137
137
138
140
143

Cockpit over view
Red indicator ligh ts
26
--------------
Central indicator light
¢page 25,
Aud i pre sense*
¢ page 120
USA model s:
Brake system ./
¢page28
Cana da m od els:
Brake system ./
¢ page28
USA models :
Electromechan ical parking brake
¢ page29
Canada models:
Electromechan ica l parking brake
¢page29
Cooling system
¢ page30
Engine oil pressure
¢ page 31
E ngine oil level
¢ page 31
Alter nator
¢ page30
Safety belt
¢page30
Electromechan ica l steering ./
¢page 150
Steering lock
¢ page 31
Engine start system
¢ page 31
Transmiss ion (automatic t ransm is ­
sion)
¢ page 96,
Clutch (manual transmission)
¢page32
Hood
¢ page32
Adapt ive cr uise control*./
¢ page 110
Traffic jam assist*
¢ page 116 Ad B
lue*
¢ page 319
Ad Bl ue*
¢ pag e 319
Yellow indi cator lights
--------------
Central indicator light
¢ page25
Electronic Stabi lization Control
( E SC)
¢ page32
Elec tronic Stab il izat io n Contro l
(ESC)
./
¢ page32
Electronic Stab ilizat ion Control
(ESC)
¢ page 147
Brake system
¢ page 33
USA models:
Ant i- lock braking system (ABS)./
¢ page32
Canad a model s:
Ant i-lock b raking system (ABS) ./
¢ page32
Safety systems ./
¢page32
USA mode ls:
Brake pads
¢ page33
Ca nad a model s:
Brake pads
¢ page 33
E lec tromechanical parking brake
¢ page29
Tire p ressure
¢ page352
Tire pressure
¢page 352
Engine contro l
¢page 33
Engine contro l (diesel engine)
¢ page 33

a co .... N ,....
N .... 0 0
3 co
C© ) Brake system
rm Brakes overheating . Please shift to D
rm Brakes overheating. Please select a gear and
follow gear recommendation
There was a heavy load on the brakes. Engage a
suitable gear (manual transm ission) or place the
selector lever in the D/S position (automat ic
transmission) to use the eng ine braking effect
and reduce the load on the brakes.
~·
:t:J /(0 : Brake pads
II (USA models)/£i1 (Canada models) Brake
pads: wear limit reached. You can continue driv­
ing. Please contact Service
The brake pads are worn.
Drive to an authorized Aud i dealer or authorized
Aud i Service Facility as soon as possible to have
the malfunct ion corrected .
c:l:::, Engine control
II Drive system: malfunction! Please contact
Service
There is an engine control malfunction .
Drive slow ly to an author iz ed Audi dealer or au­
thor ized Audi Service Facility to have the eng ine
checked .
W Engine control (diesel engine )
Applies to: vehicles with diesel engines
The engine is preheating if the II indicato r light
turns on when the ignition is switched o n.
I f the indicator light does not turn on or b links
while driving , there is an eng ine control malfunc ­
tion .
Immediately drive slowly to an authori zed Aud i
dealer or authorized Aud i Serv ice Facility to have
the malfunction co rrected .
o Malfunction indicator lamp (MIL)
The malfunction indicato r lamp (MIL) is part of
the On -Board Diagnostic System (OBD II). The Cockpit overview
('4 ,;ymbol turns on when the
ignition is switched
on and turns off again once the engine is started
and running at a steady idle speed. This indicates
that the MIL is function ing correctly.
T he indicator light turns on if there is a malfunc­
tion in the engine electronics. See an authorized
Audi dealer or authorized Audi Service Fac ility to
have the malfunction corrected . For additional
information, see
c:::> page 24.
The indicator light can a lso turn on if the fuel fill­
er cap is not closed correctly
c:::> page 317.
,m,,
Diesel particulate filter
Applies to : vehicles wit h diesel eng ine a nd diesel particulate
filter
II Particulate filter : malfunction! See owner's
manual
T he diese l particulate filter requires regenera­
tion . To support the filter 's self-cleaning func­
tion:
Drive for approximately 15 minutes at a mini ­
mum of 37 mph (60 km/h) in 4th or 5th gear
(manua l transmission) or in the S selector lever
position (automatic transmission). Keep the en­
gine speed at approximately 2,000 RPM . The
temperature increase that will result from th is
can burn off the soot in the filter . The ind icator
light will turn off when the cleaning has complet­
ed successfully .
If the indicator light does not turn off, drive im­
med iate ly to an authori zed Audi dealer or author­
ized Audi Service Facility to have the malfunct ion
corrected .
A WARNING "---
Always adapt your speed to the current
weather, road and traffic conditions. You
should never disobey traffic laws in order to
follow driving recommendations .
@ Tips
For additional informat ion on the diesel par­
ticulate filter, see
c:::> page 322 .
33

Ass is tance sy stems
Assistance systems
Electronic speed Limiter
Your vehicle may be factory equipped with tires
that are rated for a maximum speed of 130 mph (210 km/h). This is less than the maximum speed
of your vehicle. To reduce the risk of sudden tire
failure and loss of control if the vehicle is operat­
ed at excessive speeds, your vehicle also has an
electronic speed limiter. The electronic speed
lim iter prevents your vehicle from going faster
than the t ire speed rating. For mo re information
<=>page 334.
If the engine control unit receives faulty vehicle
road speed signals, the Malfunction Indicator
L amp (MIL)
¢..ffi will illumina te. If this occurs,
con tact the nearest au thorized A ud i dealer for
assistance.
_& WARNING
Always observe the posted speed limits and
adjust you r speed to suit prevailing road, traf­
fic and weather conditions. Never drive your
vehicle faster than the maximum speed rating
of the tires installed.
Speed warning system
Introduction
Applies to: vehicles with speed warning system
The speed warning system helps you to stay be­
low a specified maximum speed that can be set,
changed or deleted in the Infotainment system.
-
The speed warning system warns you if you are
exceeding the maximum speed that you have set .
A wa rning tone will sound as soon as you r speed
ex ceeds the s tored v alue s light ly. Th e indicato r
light also turns on in the instrument cluster dis­
p lay
ct] (USA models)/ [SJ (Canada models) and
a message . The indicator light
(CJ / [SJ and the
message turn off if the speed falls back be low
the stored maximum speed.
Se tting a threshold is recommended if you would
like to be reminded when yo u reach a certain
maximum speed. Situations where you may want
to do so include driving in a country with a gener-
102
al speed limit or if there is a spec ified maximum
speed for winter tires.
Setting the warning threshold
Se lect in the Infotainment system: I ME NU I but­
ton
> Vehicle > left co ntro l bu tton > Driver as sis­
tance
> Speed warning > Manu al.
(D Tips
Regard less of the speed warning sys tem, you
shou ld alw ays mo nitor your speed using the
speedometer a nd make sure yo u are fo llow ing
the lega l speed limit.
Cruise control system
Switching on
Applies to: vehicles with cruise control system
The cruise control system makes it possible to
drive at a constant speed starting at
15 mph
(20kmlh).
0
f
~
0
Fig . 103 Operat ing lever: c ru ise control system
.,. To switch the system on, pu ll the lever into po -
sition@<=> fig. 103 .
.. Drive at the speed to be mai ntained.
.. To store the speed, press the button @.
The stored speed and the
ftji(l)~14 (USA models) I
l'I (Cana da models) indicator light appear in the
instrument cluster display. An additional indica­
tor appears in the head-up display *.
The speed is maintained by modifying engine
power or through an active brake intervention.
A WARNING
-Always pay attention to the traffic around
you when the cruise control system is in
-

Assistance systems
Switching off completely
.. Press the leve r into posit ion @ (clicked into
place), or
.. Switch the ignition off.
The speed yo u sto red w ill be mainta ined if the
cru ise control has been switched off tempora rily.
To resume the stored speed, release the brake or
clutch pedal and pu ll the leve r into position
(D.
Sw itching the ign ition off will erase the stored
speed.
A WARNING
You shou ld only resume the stored speed if it
is not too high for existing traffic cond itions.
Otherwise you can increase the r isk of an acci­
dent.
Camera-based traffic
sign recognition
Description
Applies to: veh icles with camera-based traffic sign recogni·
tion
Fig. 104 Inst rumen t cluster: traffic sign recognition
Fig. 105 Windsh ield: camera window fo r tra ffic sign recog ­
nit ion
104
Traffic sign recognition assists you when driving
by displaying detected speed limits or signs pro­
hibiting passing in the instrument cluster display
¢ fig. 104. Within the limits of the system, the
legal speed limits in schoo l zones are detected
and displayed .
General information
Traffic sign recognition can detect standard
speed limit signs that are within the camera's vis­
u al field. With assistance from navigation data,
detected speed limits are evaluated and shown in
the d isplay. The traffic s ign for the current de­
tected speed lim it will blink in the display if you
exceed the warning threshold set in the Infota in­
ment system
¢ page 1 OS.
Th e traffic sign recognition is subject to certa in
system limitat ions and may be unava ilable or on­
l y part ially ava ilab le in the follow ing s ituations:
- when visibility is poor, such as in snow, rain,
fog or heavy spray
- when there is glare, for example from oncom­
ing traffic or the sun
- at high speeds
- if the camera's visual
field¢ fig. 105 is covered,
for examp le by dirt or stickers. For information
on cleaning,
see¢ page 354
- if the traffic signs are completely or partially
covered, for examp le by trees, snow, dirt or
other vehicles
- if speed traffic signs do not conform to the
standards
- if traffic signs are damaged or bent
- if traffic signs are displayed on sign holders
with electronic signs
- if the traffic signs o r the config uration of the
road have changed (navigation data is no lon­
ger up-to-date)
_& WARNING
Pay attention to traffic and the area around
your vehicle when traff ic sign recogn ition is
turned on . The traffic s igns installed on the
road always take precedence over the display .
The drive r is always responsible for assessing
the traffic situation.
-

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Intelligent Technology
Electronic stabilization
control (ESC)
Description
Elect ronic stabilization control (ESC) supports
driver safety.
It red uces the risk of slipping and
improves driving stability. ESC detects crit ica l sit­
uations such as when the vehicle is oversteering
and understeering or the wheels are spinning.
The vehicle is stabilized by applying the brakes or reducing eng ine torq ue. When the ESC engages,
the hJ ind icator light blinks in the instrument
cluste r.
The fo llow ing systems are integrated in the ESC:
Ant i-loc k bra king system (ABS)
ABS prevents the whee ls from locking when brak­
ing. The vehicle can sti ll be steered even during
hard brak ing. Apply steady pressure to the brake
pedal. Do not pump the pedal. A puls ing in the
brake pedal indicates that the system is acting to
stabilize the vehicle .
Brake assist system
The brake assist system can decrease brak ing dis­
tance . It increases braking power when the driver
presses the brake pedal quick ly in emergency sit­
uations . You must press and hold the b rake pedal
until the dangerous situat io n is over . In veh icles
with adapt ive cr uise control*, the bra ke assist
sys tem is more sensitive if the d ista nce detec ted
t o the vehicle dr iv ing ahead is too small.
Anti -Slip Regulation (ASR )
ASR reduces eng ine power when the drive wheels
begin sp inning a nd adapts the force to the road
conditions . This makes it easie r to start, acceler­
a te and dr ive up h ills.
Electron ic differenti al lock (EDL )
The EDL applies the brakes to a wheel that starts
spinning and transfers the drive power to the
other driving wheel or wheels ( if the veh icle is
eq uipped w ith all whee l dr ive*) . T his function is
not available at higher speeds.
146 In extreme cases,
ED L automat ically switches off
to keep the brake on the braked wheel from over­ heating. The veh icle is still working correct ly. ED L
will switch on again automatically when condi­
tions have returned to normal.
Steering r ecommendat ion
The ESC he lps to stabilize the vehicle by changing
the steering torque.
In veh icles with dynamic s teer ing*, ESC a lso
helps to stab ilize the steering in cr it ica l situa ­
tions.
Selective wheel torque control
Se lective whee l torque cont rol is used when d riv­
i ng on curves. The front whee l on the inside of
t h e curve or both whee ls on the i nside of the
curve are braked se lectively as needed. This al­
l ows more precise driving in curves.
Automatic post -collision b raking system
The "automat ic post-collis io n braking system"
can help to reduce the risk of sliding and of addi­
tiona l collisions after an acc ident. If the a irbag
contro l modu le detects a collision, the ve hicle is
braked by the ESC.
The veh icle does not bra ke automatically if:
-the dr iver presses the accelerator pedal, or
-the ESC, the brake system or the veh icle electri-
cal system are not functioning.
&_ WARNING
-The ESC and its integrated systems cannot overcome the lim its imposed by natura l
phys ica l laws. This is espec ially important
on sl ippery or wet roads. If the systems be­
gin acting to stabilize your vehicle, you
should immediately alter your speed to match the road and traffic conditions. Do
not let the increased safety provided tempt
you into taking risks. This could increase
your r isk of a coll is ion.
-Please note the r isk of a coll is ion increases
when dr iv ing fast, especially through curves
and on slippery or wet roads, and when dr iv­
ing too close to objects ahead . The ESC and
its integrated systems cannot always

Intelligent Technology
& WARNING
- Only apply the brakes for the purpose of
cleaning the brake system whe n road and
t raffic conditions perm it . You must not en­
dange r othe r road users . This increases the
risk of an accide nt.
- Never let the vehicle roll while the e ng ine is
stopped because this increases the risk of a n
a cci den t.
([) Note
- Neve r let the brakes " rub" by pressing the
pedal lightly when braki ng is not actually
necessa ry . T his ca uses the bra kes to over­
h ea t an d inc reases br akin g d istance an d
c a uses wear .
- B efo re driv ing downhill a long distance on a
steep hi ll, decre ase your spee d an d se lec t a
l ower gear . This makes use of t he engine
b raking effe ct and re lieves the brakes . If
you nee d to b rake additionally, b rake in in­
tervals and not continuously .
(D Tips
- If the brake booste r is no t working, yo u
must press the brake pedal with much more
fo rce than normal.
- If you retrofit you r vehicle with a front spoil­
er, whee l covers o r similar items, ma ke sure
that the a ir flow to the front whee ls is not
i nte rr u pted. Othe rw ise the brake system
ca n become too hot.
Electromechanical
steering, Dynamic
steering
T h e electromechanical st eering supports the
driver's steering movements.
Power steering adapts electronically based on
the vehicle speed.
Indicator lights and messages
• St ee ring : malfunction! Plea se stop vehicle
150
If this indicato r light turns on and stays on and
this message appears, the power steering may
have failed.
Stop t he vehi cle in a sa fe location as soon as pos­
s ible . Do
not contin ue driving . See an authorized
Audi dealer or authorized A udi Service Facility for
ass istance .
'I- ij Steering: malfun ction! You may continue
driving
I f the indicato r light turns on and the message
a ppears, the steeri ng wheel may be more d iffi­
cu lt to move o r more sensitive than usu al. The
stee ring wheel may also be at a n ang le when
driving straight.
D rive slowly to an auth o rized Audi dea ler or au ­
thorized Aud i Serv ice Facili ty to have t he mal ­
f unct io n corre cted .
t$Jj Dynamic steering: correcting steering wheel
position
If the indicator light turns on and this message
appears , the dynamic steering * is re in it ia liz ing .
The s teer ing whee l will be easy to move afte r
st ar ting t he engine . Reinitializa tio n might be
ne cessary if the stee ring w heel was moved while
t h e engine was switched off. The disp lay t urns
off if the initialization was successfu l.
(D Tips
- If the . or krfl i ndi cato r ligh t only s tays on
f or a sho rt time, you may cont inue driving .
- Th e dynamic stee ring s tabili ty sys tem s
¢ page 14 6 are not av ailabl e in the event of
a system malfunction .
- For add ition al informa tion o n dynamic
s teering, see
¢ page 133.
ALL-wheel drive (quattro)
App lies to: vehicles wi th all wheel drive
General information
In all whee l dr ive, the dr iv ing power is dis trib ut-
ed between all fo ur whee ls when needed. This
happens automatically depending on your driving
behavior as we ll as the c urrent road conditions.
.,_

a co .... N ,....
N .... 0 0
3 co
Notice about data
recorded by the Event
Data Recorder and
vehicle control modules
Event Data Recorder
This vehicle is equipped with an Event Data Re­
corder (EDR) . The main purpose of an EDR is to
record, in certain crash or near crash-like situa­
tions, such as an airbag deployment or hitting a
road obstacle, data that will assist in understand­
ing how a vehicle's systems performed. The EDR
is designed to record data related to vehicle dy­
namics and safety systems for a short period of
time, typically 30 seconds or less . The EDR in this
veh icle is designed to record such data as :
- How various systems in your vehicle were oper­
at ing;
- Whether or not the driver and passenger safety
belts were buckled/fastened;
- How far (if at all) the driver was depressing the
accelerator and/or brake pedal; and,
- How fast the vehicle was traveling.
These data can he lp prov ide a better understand­
ing of the circumstances in which crashes and in­
juries occur. NOTE: EDR data are recorded by your
vehicle only if a non-trivial crash situation occurs;
no data are recorded by the EDR under normal
driving conditions and no personal data (e .g.,
name, gender, age, and crash location) are re­
corded. Howeve r, other parties, such as law en­
forcement, could combine the EDR data with the
type of personally identifying data routinely ac­
quired during a crash investigation.
To read data recorded by an EDR, specia l equip­
ment is required, and access to the vehicle or the
EDR is needed. In addition to the vehicle manu­
facturer, other parties, such as law enforcement,
that have the specia l equipment, can read the in­
formation if they have access to the vehicle or the
EDR.
Some state laws restrict the retrieval or down­
l oading of data stored by ED Rs insta lled in a vehi ­
cle for the express purpose of retrieving data af­
ter an accident or crash event without the own­ er's consent.
Intelligent Technology
Audi will not access the EDR and/or simi la r data
or give it to others -
- unless the vehicl e owner (or lessee if the vehi­
cle has been leased) agrees; or
- upon the official request by the police; or
- upon the order of a court of law or a govern-
ment agency; or
- for the defense of a lawsuit through the jud ic ial
discovery process.
- Aud i may also use the data for research about
veh icle operation and safety performance or
prov ide the data to a th ird party for research
purposes without ide ntify ing the specific vehi­
cle or information about the identity of its own­
er or lessee and only after the reco rded vehicle
data has been accessed.
Vehicle control modules
Your vehicle is also equipped w ith a number of
electronic control modules for various vehicle
systems, such as engine management, emiss ion
contro l, airbags, and safety be lts.
T hese elect ronic contro l modu les record data
dur ing normal vehicle operation that may be
needed by trained technicians for diagnostic and
repair purposes. The recording capab ility of these
modules is limited to data (no sound is record­
ed). Only a small amount of data is actually re­
corded over a very limited period of time, or stor­
ed when a system fault is detected by a control
module . Some of the data stored may relate to
vehicle speed, direction, or braking, as well as re­
straint system use and performance in the event
of a crash. Stored data can also only be read and
down loaded w it h special equipment that is di­
rectly connected to the vehicle .
(D Tips
Your vehicle may be equipped w ith Aud i con­
nect. Your use of certain Audi connect fea­
tures requires wire less services that are pro­
vided by a third party wireless telecommuni ­
cations provider . For details regarding how in­
formation obtained through Audi connect is
collected, processed, transmitted, used, and
shared, please see your contract with the
wireless telecommunications provider and the
IJJJ,-
153