2018 AUDI A4 cruise control

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

a co .... N ,....
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(!) side assist displays, warning abo ut
exiting the vehicle ..... ... .. .. .
@ Door handle
@ Cent ral locking switch ....... .. .
@ Memory buttons ........... .. .
® Vent
® Thumbwhee l for vent
(J) Lever for:
- T urn signals and h igh beams
- High beam assistant ........ .
- Active lane assist .. ..... ... . .
- Traffic jam assist ....... .. .. .
@ Mul tifunction steer ing wheel with:
- Horn
- Driver's airbag . ..... ... .. .. .
- Drive r information system con -
t rols .. .. ............. .. .. .
- Audio/v ideo, telephone, nav iga­
t ion and voice recognition con-
trols . ... .... .. .... ... .. .. .
- ~ button/stee ring wheel heating
- Sh ift paddles .............. .
® Instrument cluster .... ... .. .. .
@
@
@
@
~
@
Reset trip odometer ........ .. .
W indshie ld washer system lever
Emergency flashers .... ... .. .. .
Knee a irbag ........ ..... ... . .
Adjustable steer ing column
Lever for:
- Cruise cont rol system ..... .. .
- Adaptive cruise cont rol .. ... . .
@ Instrument i llum ination ... .. .. .
@ Data link connector for On Board
Diagnostic System (OBD II) .. .. .
@ H ood release . ........... .. .. .
@ Button for switching the head-up
d isplay on/off, adjust ing the
height .. .. ............... .. .
@ Lig ht switch ............... .. .
@ Buttons for :
- All -weather lights
- Rear fog lights ........... .. .
@ Sw itch for luggage compartment
lid .. .. .. .. ............. .. .. .
128
41
67
55
55
125
116
275
13, 16
15, 16
15
94
10
12
60
56
287 82
10 2
108
58
24
324
24
54
54
54
43
Coc kpit o ve rv iew
@ Power exterior m irror adjustment
@ Power windows .............. .
@ Child safety lock . ............ .
@ Infotainment system display . .. .
@ Lockable glove compartment . .. .
@) Drives for CD, DVD, SI M cards .. .
@ Front passenger's airbag ...... .
@ Valet Park ing funct ion ... .. ... .
@ Climate contro l system . ..... .. .
@ Depend ing on equ ipment, buttons
for:
- drive select .. .. ............ .
- Start/Stop system .......... .
- Elect ronic Stabilization Control
(ESC) . .... .. .............. .
- Park ing aid .. .. ............ .
- Hill descent ass ist .. . ..... .. .
- Switching the Infota inment sys-
tem disp lay on/off .......... .
@ Socke t ..... .. .............. .
@ Cup holder . .. ... .... . ..... .. .
@ Infotai nment system on/off
button ....... .. ............ .
@ Center armrest with sto rage com­
partment . Depending on vehicle
equipment, it may have:
- Aud i m usic interface .. ..... . .
@ Sta rt ing t he engine when there is a
malfunction ... .. .... . ..... .. .
@ E lectromechanical parking brake
@) Depend ing o n eq uipment:
- Selector leve r (a utomatic trans -
m iss ion) .. .. .. ............ .
- Gearshift lever (manua l transmis-
sion)
58
48
48
156
69
228
275
51
76
133
85
14 7
136
148
156
68
69
155
234
85
88
91
@ In fotai nment unit . . . . . . . . . . . . . 155
@ I STAR T ENGINE ST OP I button 83
(D Tips
Some the equipment listed he re is only instal­
l e d in certa in models or is available as an op ­
tion.
9

Cockpit overv iew
Head-up display
Applies to: vehicles with head-up display
Fig. 21 Instrument panel: knob for the head-up display
The head-up display projects certa in warnings or
selected information from the ass ist systems* or
nav igation* on the w indshield. The d isplay ap­
pears within the drive r's fie ld of vision .
Switching on /off
• To switch the head-up display on or off, press
the
knob~ ~ fig. 21.
Adjust ing th e height
The height of the display can be adjusted to the
individual driver.
• Make sure you are seated correctly
qpage255.
• Turn the knob~ to adjust the display .
Setting s in th e Infotainm ent sy ste m
• Se lect in the Infotainment system: I MENU I but­
ton
> Vehi cle > left contro l button > Dri ver as­
s ist ance
> H ea d-up di spl ay .
D is play content
In the Infotainment system, you can specify
which information should be displayed: For ex­
ample, this can include navigation information*,
adaptive cruise control* or camera-based traffic
sign recognition *.
The display of certa in information and some of
the red indicator lights cannot be hidden in the
Infotainment system.
Brightness
You can adjust the display brightness in the Info­
tainment system. The d isplay brightness decreas -
24
es automatically as the amount of light decreas ­
es . The background brightness is adjusted with
the instrument
illumination ~ page 58.
Picture rotation
You can rotate the picture in the Infotainment
system clockwise or counter clockwise.
(D Note
To p revent sc ratches on the glass covering the
head-up display, do no t place any objec ts in
the pro jection opening .
@ Tips
-Sunglasses with po larization filte rs and un­
favorable light ing cond itions can have a
negative effect on the disp lay .
- An optimum disp lay depends on the seat
posit ion and the height ad justment of the
head -up disp lay.
- A spec ial windshie ld is needed for the head ­
up display funct ion .
- For information on clean ing,
see~ table In­
terior cleaning on page 356.
On-Board Diagnostic
System (OBD)
Malfunction indicator lamp (MIL)
The ma lf u nction indicator lamp (MIL) ¢;# in the
i nstrumen t cluster is part of the On-Board Diag­
nostic System (OBD II).
The indicator light turns on when the ignition is
switched on and turns off once the engine is
star ted and is r unning in idle at a stable speed.
This indicates that the MI L is fu nctioning correct­
l y .
If th e light do es n ot turn off aft er start ing the
e ngin e
or turns on while driving, this may indi­
cate there is a malfunction in the engine .
If the
i ndicator turns on, the cata lytic converter may be
damaged.
Drive
with reduc ed eng in e perf orman ce (avoid
high speeds for extended periods of time and/o r
IJJ,-

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'
-Yli-, I '
Malfunct ion Indicato r Lamp (MIL)
,/
¢page 33
Diese l part icu late filter*
¢page33
Eng ine speed limitat ion
¢page34
Eng ine oil level (MIN)
¢ page 31
Eng ine oil level ( MAX)
¢ page 327
Eng ine oi l sensor
¢ page34
Eng ine warm-up request
¢ page34
Battery charge
¢page 30
Tank system
¢page34
Washer fluid level
¢page34
W indshield w ipers
¢page34
Remote control key
¢ page83
Driver's door
¢page35
Battery in remote cont rol key
¢ page39
Bulb failure ind icator
¢ page 35
Headlight range control system
¢ page 35
Adapt ive light*
¢ page35
Light/rain sensor
¢page35
Active lane ass ist*
¢page 126
Audi side assist*
¢ pag e 133
AdBlue0
0
Coc kpit o ve rv iew
Audi pre s ense *
¢page 124
Parking aid*
¢page 144
Transmission (automatic transmis­
s ion)
¢ page 96,
Clutch (manual transmission)
¢page 32
Steering lock
¢ page 31
Engine sta rt system
¢page 31
Electrome chanical steering
¢ page 150
Suspension control*
¢page 35
All wheel drive/sport differential*
¢page35
Emergency call funct ion*
¢ page 203
Ad Blue *
¢page 319
Ad B lue*
¢ page 319
Other indicator light s
--------------
Turn signals
¢ page 36
USA models :
Cruise cont rol sys tem*
¢ page 102
Canad a model s:
Cru ise control system*
¢ page 102
Adaptive c ruise contro l*
¢ page 110
Adaptive c ruise contro l*
¢ page 110
Adaptive c ruise contro l*
¢ page 110
Ad aptive c ruise contro l*
¢ page 110
27

Cockpit over view
28
_J:L
1:1
y>))
Adapt ive cruise control*
¢ page 112, ¢page 115
Adapt ive cruise control*
¢ page 115
Traffic jam assist*
¢page 116
Active lane assist*
¢page 126
Predictive efficiency assist*
¢page 107
USA model s:
Predictive efficiency assist*
¢page 107
Canada mod els:
P redictive efficiency assist*
¢ page 107
Predictive efficiency assist*
¢page 107
Predictive efficiency assist*
¢page 107
Predictive efficiency assist*
E!)page 107
Hill descent assist*
¢page 148
Start/S top system *
¢page85
Start/Stop system*
¢ page 85
Remote cont rol key
¢ page85
Ad B lue *
¢page319
Automatic transm ission*
¢ page96
Dynamic steering"
¢page 150
Adapt ive cr uise control*
¢ page 112,
Traffic jam assist*
¢ page 118
Traffic jam assist *
¢page 118
D AUTO
Audi pre sense *
¢page 124
USA models:
Electromechanical parking brake
¢ page 29
Canad a models:
Electromechanical parking brake
¢ page29
Hill descent assist*
¢page 148
Child safety lock
¢ page48
USA models:
Speed warning system*
¢ page 102
Canada model s:
Speed warning system*
¢ page 102
Active lane assis t*
¢ page 126
Audi s ide assist*
¢ page 133
Camera-based traff ic sign recog ni­
tion*
High beam ass istant*
¢ page 55
High beams
¢ page 55,
High beam ass istant*
¢ page 55
BRAKE /CCD) Brake system
If this indicato r light turns on, t here is a malf unc­
t ion in the b rake system .
1111 (USA model s) /. (Canada model s)
Brakes : stop vehicle and chec k brake fluid level
Stop the vehicle and check the brake flu id leve l.
See an author ized Audi dealer or authorized Audi
Service Facility for assis tance if necessary .
1111 (USA models ) /. (Can ada model s)
Brakes : malfunction! Stop veh icle safely
..,.

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
-

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operation. You are always responsible for
your speed and the distance between your
vehicle and other vehicles.
- For safety reasons, cruise control should not be used in the city, in stop-and-go traffic, on
winding roads and when road conditions are poor (such as ice, fog, gravel, heavy rain and
hydroplaning), because th is increases the
risk of an accident.
- Switch the cruise control off temporar ily
when driving in turn ing lanes, h ighway exits
o r in construction zones.
- Please note that unconsciously "resting"
your foot on the accelerator pedal prevents the cruise control from b raking. This is be­
ca use p ressing the acce le ra to r peda l ove r­
rides the cruise contro l system.
- If a brake system ma lf u nction such as over­
heating occurs when the c ruise contro l sys­
tem is switched on, the braking function in
the system may be switched off . The rest of
the cruise control system functions remain
act ive as long as the
@;\l)M~ (USA models) /
Bl (Canada models) indicator light is on.
Before driving downhill a long distance on a
steep hill, decrease your speed and select a
lower gear. Th is makes use of the eng ine
braking effect and relieves the brakes.
(D} Tips
-Applies to: vehicles with manual transmis­ sion: The set speed can on ly be reached if
the engaged gear permits it so that the en­
gine is not over-rewed and will run smooth­ ly. Therefore, s hift into the higher or lower
gear in a timely manner .
- The brake lights turn on when the brakes are applied automatically.
Changing the speed
Applies to: vehicles with cruise control system
.. To inc rease/decrease the speed in 1 mph ( 1
km/h) increments, br iefly
tap the lever toward
0 10 ¢ page 102, fig. 103 to the first level.
A ss ista nce sys te m s
.. To increase/decrease the speed in 5 mph (10
km/h) increments, briefly
tap the lever toward
0 10 to the second level.
.. To increase or decrease the speed quick ly, hold
the lever toward 0 10 to the first or second
level unt il the desired speed is reached .
Overriding the speed
Applies to : vehicles with cruise control system
You can press the acce lerator pedal to increase
you r speed, fo r example if you want to pass
someone. The speed you set earl ier will resume
as soon as you release the acce lera to r pedal.
However, if you are exceeding the stored speed
by a considerable amount fo r a long time, the
c ruise contro l system will temporarily switch off.
T he
(ij;jl)~i~ (U SA mode ls) !Iii (Canada mode ls) in­
dicator light in the inst rument cluste r turns off
and the stored speed is maintained.
Preselecting a speed
Applies to: vehicles with cruise control system
You can pre-select your desired speed when the
vehicle is stationary .
.. Switch the igni tion on.
.. Pull the lever i nto pos it ion (!) ¢page 102,
fig. 103 .
.. To increase or decrease the speed, tap the lever
toward
0 10 .
This function makes it possible, fo r example, to
save the speed you want before driving on the
highway. Once you are on the expressway, acti­
vate the cruise contro l system by pull ing the lev­
er into
position (!).
Switching off
Applies to : vehicles with cruise control system
Deact iva ting tempor aril y
.. Press the brake pedal, or
.. Press the lever toward @(not locked i nto
place)
¢ page 102, fig. 103 .
103

a co .... N ,....
N .... 0 0
3 co
Resetting lap statistics
"'On the mult ifunction steering whee l, select:
the right contro l button
> Reset statistics .
(D) Tips
The lap statistics list the lap times for the last
30 laps. The fastest and slowest lap time out
of up to 99 measured laps are also displayed .
Predictive efficiency
assist
Descript ion
Applies to: vehicles with predictive efficiency assist
General information
The pred ictive eff ic iency assist helps the driver to
d rive w ith anticipation and therefore helps to
save fuel. The system accesses predictive trip da­
ta (including speed limits, inclines and the radius
of curves) from the navigation system*. Informa­
tion from the camera-based traff ic sign recogni­
tion* is also applied to recognize traffic signs
r;;:;ipage 104.
The messages displayed depend on the naviga­
tion data* being up-to-date and the correct iden­
tification by the traffic sign recognition*.
When adaptive cruise contro l* is switched off,
the predictive efficiency assist only provides noti­
fications without controlled interventions. When
adaptive cruise control* is switched on, the sys­
tem responds to upcoming situations automati­
cally.
Vehicles with adaptive cruise control*
Refer to predictive control c> page 115.
Indicator in the instrument cluster display
Predictive messages appea r in the instr ument
cluster display to show the driver the appropriate
time to coast when a situation ahead requires
you to drive at a lower speed.
The messages are only shown if the cr uise control
system* or adaptive cruise control* is switched
off .
Assistance systems
An additional indicator appears in the head-up
display* .
Symbol Meaning
Remove your foot from the acceler -
"
ator pedal to slow down, because
there is a situation ahead that re- quires a lower speed.
If you see Driver assistance in the instrument
cluster disp lay, the following symbols will indi­
cate which situation the system is currently re­
acting to.
Symbol Meaning
MPH
USA models:
Speed limit
km/h
Canada models:
speed limiter
_J!L Intersection
1:1
w
Traffic circle
If there are multiple s ituations, then these situa­
tions w ill appear in order in the display.
.&, WARNING ~ -
Pay attention to traffic and the area around
your vehicle when the efficiency assist is
switched on. The driver is always respons ible
for assessing the traffic situation.
(D Tips
- The wording of the message may vary de­
pending on the driving mode set in drive se­
lect* c> page 133 and the current selector
lever position (automatic transmiss ion*).
No messages are displayed when in the S
selector lever position or in
Dynamic mode.
- When a route is planned using the naviga­
tion system*, then the message feed is based on this route. Without route guid­
ance, the system uses an assumed route fo r
the message feed.
- There will not be a message for every s itua­
tion ahead, for example if there is not
enough distance remaining to react to the
situation.
107