lane assist AUDI S4 2015 Owners Manual

2 Table of contents Vehicle literature .. .. .. .. .. ... .
5
About this Owner's Manual . . . 6
Controls and equipment .. ... .
Ins truments and controls .. . .
General illus tration .... ... .. .. ... .
Instruments and warning /
indicator lights ........ .. .. .. . .
Ins truments . .. .. ..... ... .. .. ... .
War ning/ indi cator lights ... .. ... .. .
Driver information d isplay .. . .
Introduct ion . .. .. ..... ... .. .. ... .
Trip computer .. .. ..... ... .. .. ... .
Gearshift Indicator ........ .. .. ... .
Efficiency program ........ .. .. .. . .
Service interval d isp lay .. .. .. .. .. . .
On -Board Diagnostic system (OBD) .. .
Opening and closing .... .. .. . .
Power locking system .. ... .. .. .. . .
R ear lid .. .. ................ ... . .
C hil d safety locks ......... .. .. ... .
P ower wi ndows ........ .. .. .. .. . .
Sun roof .. .. ............. .. .. .. . .
Va let par king .. .. ..... ... .. .. ... .
Garage door opener (HomeL in k) ... . .
Clear vision .. . ...... ... .. .. ... .
Lights ...... .. .. ..... ... .. .. ... .
Inter ior lights .. .. ..... ... .. .. ... .
V1s1on . .. .. .. . .......... .. .. ... .
W iper and washer system ...... .. . .
Dig ita l compass .......... .. .. ... .
Seats and storage ....... .. ... .
General recommendat ions . .. .. ... .
F ront seats ... .. ...... .... ... .. . .
H ead restraints .............. .. . .
Seat memo ry .. .... ...... .. .. .. . .
As htray .... ... .......... .. .. .. . .
C igare tte lig hte r .......... .... ... .
12-vo lt socket . .. ..... ... .. .. ... .
Sto rage .... ... .. ..... ... .. .. ... .
Roof rac k ... .. .. ..... ... .. .. ... . 8
8
8
10
1 0
1 3
23
23
24
26
26
28
29
31
31
38
41
42
43
45
45
4 9
4 9
52
52
55
58
60
60
61
63
64
65
65
66
6 6
69
Luggage compartment . . . . . . . . . . . . 70
Warm and cold ... .. ..... .... . .
Climate co ntrols . ... ... ..... ... .. . 78
78
On the road . . . . . . . . . . . . . . . . . . . 8 2
Stee ring . . . . . . . . . . . . . . . . . . . . . . . . 82
Ign it io n lock . . . . . . . . . . . . . . . . . . . . . 82
Convenience key . . . . . . . . . . . . . . . . . . 85
Driver messages . . . . . . . . . . . . . . . . . . 86
E lectromechanical parking brake . . . . 87
Speed warning system . . . . . . . . . . . . . 89
Cru ise cont ro l . . . . . . . . . . . . . . . . . . . . 91
Transmission . . . . . . . . . . . . . . . . . . 93
Manua l transm ission . . . . . . . . . . . . . . 93
mult it ron ic, S tronic, tiptron ic . . . . . . . 93
Audi adaptive cruise control
and braking guard . . . . . . . . . . . .
101
I n troduc tio n . . . . . . . . . . . . . . . . . . . . . 101
Genera l inform ation . . . . . . . . . . . . . . 1 01
A udi adaptive cruise cont ro l . . . . . . . . 103
Audi braking gua rd . . . . . . . . . . . . . . . 107
Messages . . . . . . . . . . . . . . . . . . . . . . . 109
Audi side assist . . . . . . . . . . . . . . . 111
Lane change assistant . . . . . . . . . . . . . 111
Audi drive select . . . . . . . . . . . . . . 11S
Driving settings . ... ... ..... ... .. . 115
Park assist . . . . . . . . . . . . . . . . . . . . . 118
Pa rking system . . . . . . . . . . . . . . . . . . . 118
Pa rking system (rear) . . . . . . . . . . . . . . 118
Pa rking system (rear, with rear view
camera) . . . . . . . . . . . . . . . . . . . . . . . . 120
Safety first . . . . . . . . . . . . . . . . . . . . 126
Driving Safely . . . . . . . . . . . . . . . . . 126
General notes . . . . . . . . . . . . . . . . . . . . 126
Proper occupant seating positions . . . 127
Pedal a rea . . . . . . . . . . . . . . . . . . . . . . . 131
Stow ing luggag e . . . . . . . . . . . . . . . . . 132
Repo rting Safety Defects. . . . . . . . . . . 134
Safety belts . . . . . . . . . . . . . . . . . . . 136
Genera l notes . . . . . . . . . . . . . . . . . . . . 136
Why sa fe ty belt s? . . . . . . . . . . . . . . . . 13 7

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Audi adaptive cruise control and braking guard 101
Audi adaptive cruise
control and braking
guard
Introduction
App lies to vehicles: with Audi adaptive cruise control
The adaptive cruise control system assists the
driver by regu lating vehicle speed and helping
to maintain a set distance to the vehicle
ahead, within the limits of the system . If the
system detects a moving vehicle up ahead,
adaptive cruise control can brake and then ac­
celerate your vehicle . This he lps to make driv­
ing more comfortable on long highway
stretches.
The braking guard system can warn you about
an impending collision and initiate braking
maneuvers
c::;, page 107.
Adaptive cruise control and braking guard
have technical limitations that you must
know, so please read this section carefully, un­
derstand how the system works and use them properly at all times.
General information
General information
Applies to vehicles: with Audi adaptive cruise control
Fig. 113 Front of the vehicle: Position of radar sensor
The area that contains the radar sensor
c::;, fig. 113 must never be covered by stickers
or other objects or obstructed with dirt, in­
sects, snow or ice that will interfere with the
adaptive cruise control system and braking
guard. For information on cleaning, refer to
c::;, page 202. The same applies for any modifi­
cations made in the front area . The
function of the adaptive cruise control
system and braking guard is limited under
some cond itions:
- Objects can only be detected when they are
within sensor range
.:!>page 103 , fig. 116.
-The system has a limited ability to detect
objects that are a short distance ahead, off
to the side of your vehicle or moving into
your lane.
- Some kinds of vehicles are hard to detect;
for examp le motorcycles, vehicles with high
ground clearance or overhanging loads may
be detected when it is too late or they may
not be detected at all.
- When driving through curves
c::;, page 102.
-Stationary objects c::;, page 102.
A WARNING
-Always pay attention to traffic when adap-
tive cruise control is switched on and brak­ ing guard is active. As the dr iver, you are
still respons ible for start ing and for main­
tain ing speed and distance to other ob­
jects. Braking guard is used to assist you.
The driver must always take action to avoid
a collision. The driver is always responsible
for braking at the correct time.
- Improper use of adaptive cruise con trol
can cause collisions, other accidents and
serious personal injury .
- Never let the comfort and convenience
that adaptive cruise control and braking
guard offer d istract you from the need to
be alert to traffic conditions and the
need to remain in fullcontrolofyourve­
hicle at all times,
- Always remember that the adaptive
cru ise contro l and braking guard have
limits -they will not slow the vehicle
down or maintain the set distance when
you drive towards an obstacle or some­
thing on or near the road that is not
moving, such as vehicles stopped in a
traffic jam, a stalled or disabled vehicle.
If registered by the radar sensor, vehicles
or obstacles that are not moving can
trigger a collision warning and if .,.

Audi side assist Lane change assistant
Description
Applies to vehicles: with Audi side assist
Fig . 124 Sensor dete ction ra n ge
Fig . 12 5 Disp la y on th e e xterio r mirro r
Side assist he lps you mon itor yo ur blind spot
and traffic behind you r veh icle. W ith in the
limits of the system, it warns you about
vehicles that are coming closer or tha t are
traveling w ith you within sensor ra nge
(D
c::, fig . 124 : if a lane change is class ified as crit­
ical, the display @ in the exterior mirror
c::> fig. 125 turns on.
The display in the left exterior mirror provides
assistance when making a lane cha nge to t he
l eft, while the display in the right exter ior mir­
r or p rov ides assistance when making a lane
change to t he right .
Information stage
As long as you do not activate the turn signal,
side assist
informs you about vehicles that are
detected and class ified as crit ica l. The display
M N in the respec tive mirro r turns o n, but is d im .
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Aud i side assist 111
The display remains d im intentionally in the
information stage so that your view toward
the front is not disturbed .
Warning st age
If you activate the turn signal, s ide assist
warns you about veh icles that are detected
and classified as critical. The display in the re ­
spective mirror blinks brightly . If this hap­
pens, check traff ic by glanc ing in the rearview
mirror and over your shoulder¢
A in General
information on page 112 .
@ Tips
-You can adjust the brightness of the dis­
play @¢
page 113 .
-Please refer to the instructions fo r tow­
ing a trailer located in
¢ page 112.

112 Audi side assist
General information
App lies to vehicles: with Audi side assist
®
©
Fig. 126 Driving s it u at ions
AU Dr- l
• •
Fig . 12 7 Rea r of th e ve hicle: pos it io n of t he se nso rs
Side assis t fu nctions at speeds above ap prox i­
ma tely 19 mph (30 km/h).
@ V ehicles that are approaching
In certain cases, a vehicle will be classified as
cr itical for a lane change
even if it is still
somewhat far away. The fas ter a vehicle ap­
p ro aches, the sooner the disp lay in the exteri­
or m irror will t urn on.
@ Vehicles traveling with you
Vehicles traveling w ith you are indicated in the
exterior m irror if they are classified as cr it ical
for a lane change. All vehicles detec ted by
side assis t are in dicated by the time they en­
ter your "blind spot", at the latest.
© Vehicles left behind
If you s low ly pass a ve hicl e tha t sid e ass ist has
dete cted ( the difference in s peed between the
vehicle and you r vehicle is less than 9 mph
(15 km/h)), the display in the exter io r mirro r
turns on as soon as the vehicle enters your blind spot.
The disp lay wi ll not t urn on if you quickly pass
a vehicle that s ide assist has detected (t he d if ­
f erence in speed between the ve hicle and your
vehicle is greater than 9 mph (15 km/h)).
Functional limitations
T he radar senso rs are des igned to detect the
left and right adjacent lanes whe n the road
l anes a re the normal width. In certain situa­
t ions, the d isp lay in the exterior mirror may
turn on
even though there is no ve hicle locat­
ed in the area that is cr itical fo r a lane cha nge.
For example:
- if the lanes are narrow or if your are driving on the edge of your lane. If this is the case,
the system may have detected the vehicle in
another la ne that is
not adjacent to your
cur rent lane .
- if you a re driving through a c urve . Side assis t
may react to a vehicle that is one lane ove r
from the ad jacent lane .
- if side assist reacts to other objects (such as
high or d isp laced gua rd rails) .
- In poor weather conditions. The side assist fu nctions are limited .
Do not
cover the radar sensors c:;, fig. 127 with
stickers, depos its, bicycle wheels or other ob­
jects , because this will affect the funct ion. Do
not use s ide ass ist when tow ing a trail er. For
information on cleaning, refe r to
c:;, page 202 .
&_ WARNING
-Always pay a tten tion t o traffic and to the
ar ea around your ve hicl e. Side a ssist can ­
no t repla ce a driver's attention. The driv ­
er a lone is always respons ible fo r lane
cha nges a nd similar driving mane uvers.

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-Improper reliance on the side assist sys­
tem can cause collisions and serious
personal injury:
- Never rely only on side assist when
ch anging lanes.
- Always check rear view mirrors to make
sure that it is safe to change lanes.
- Side ass ist cannot detect a ll vehicles un­
der all cond itions- dange r of accident!
- Please note that side assist indicates
ther e ar e approaching vehicles, o r
vehicles in your bli nd spot, o nly afte r
yo ur vehicle has r eached a driving speed
o f at least 19 mph (30 km/h).
- In certain s ituati ons, the system may not
f unc tion or its funct io n may be lim ited.
For example:
- if veh icles are approaching or be ing left
behind very quick ly. The display may
not turn on in time.
- in poor weather condit ions such as
heavy ra in, snow or heavy m ist .
- on very wide lanes, i n tight curves or if
there is a rise in the road surface .
Vehicles in the adjacent lane may not
be detec ted becaus e they are outside
of t he senso r range.
(D Note
The sensors can be displaced by impacts o r
damage to the bumper, whee l housing and
unde rbody. This can affect the system .
Have your author ized Audi dealer or au­
t hori zed A udi Service Fa cility check the ir
function.
(D Tips
- If the window g lass in t he d river's doo r
or front passe nger's door h as bee n tint­
ed, the disp lay in the exterior m irror may
be misinterpre ted.
- Fo r De clarat ion of Compliance to Uni ted
Sta tes FCC and Indus try Canada regula­
tions~
page 286.
Aud i side assist 113
Activating and deactivating
A pp lies to vehicles : wi th Aud i side ass ist
F ig. 128 D river 's doo r: Side ass is t button
.,. Press the b utton ~ A in General informa ­
tion on page 112
to switch the system on/
off . The LED in the button turns on when
side assist is switched on.
Adjusting the display brightness
A pp lies to vehicles: wi th Audi side ass ist
The signal brightness can be set in the radio
orMMI* .
.,. Select: !CAR ! function button > Audi side as­
sist .
.,. Select: I CAR I function button > Car systems *
control button > Driv er a ssist > Audi side
as sis t.
The display br ightness adjusts automatically
to the brig htness of the sur roundings, both in
the info rmation and in the warning stage . In
very dark or very bright su rroundings, the dis­
play is already se t to the m inimum or maxi­
mum level by t he autom atic adjus tme nt. I n
s uch cases, you may notice no change when
adjusting t he b rig htness, or the change may
only be noticeable once the s urroundings
change.
Adjus t the brightness to a leve l where the dis­
play i n the information stage w ill not d is rupt
your view forward . If you change the bright­
ness, the display in the exterior mirror will
briefly show the brightness level in the infor­
mation stage. The brightness of the warning
stage is linked to the brightness in the i nfor­
mation stage and is adjusted along with the
i nformation stage adjustment. ..,_

@ Tips
Your vehicle may be equipped with Audi
connect. Your use of certain Aud i connect
features req uires wireless serv ices that are
provided by a third party wireless telecom­
municat ions provider. For details regard­
ing how information obtained through
Aud i connect is collected, processed,
transmitted, used, and shared, please see
your contra ct w ith the wire less telecom ­
municat ions provider and the "About A udi
connect" tab in your vehicle's MMI*:
!MENU ! button> Audi connect > About
Audi con nect .
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of
skidd ing and loss of veh icle control. It works
only when the eng ine is running. ESC detects
certain difficult driv ing situations, including
when the vehicle is beginning to spin (yaw) out of cont ro l and he lps you to get the vehicle
back under control by select ively b rak ing the
wheels, and/or red ucing engine powe r and
p roviding steering assistance to help hold the
ve hicle on the driver's intended course . The in­
dicator light
DJ in the instrument cluster
blinks when ESC is taking action to help you
control the vehicle.
ESC has limitations.
It is important to remem­
ber that ESC cannot overcome the laws of
phys ics. It will not a lways be able to help out
under all conditions you may come up against.
For example, ESC may not always be able to
h elp you master situat ions where there is a
sudden change in the coefficient of fr iction of
the road surface. When there is a sect io n of
d ry road that is s udden ly cove red with water,
slush o r snow, ESC canno t perform the same
way it would on the dry su rface.
If the vehicle
hydroplanes (rides on a c ush ion of wate r in­
stead of the road surface), ESC wi ll not be
ab le to he lp you steer the veh icle because con-
Int ellig ent technolog y 185
tact with the pavement has been interrupted
and the vehicle cannot be braked or steered .
D uring fast corner ing, particular ly on wind ing
roads, ESC cannot always deal as effectively
with difficult dr iv ing s ituations than at lower
speeds. When towing a trailer, ESC is not able
to help you regain control as it would if you
were not tow ing a trailer.
Always adjust your speed and driving style to road, traffic and weather conditions . ESC can­
not override the vehicle's physical lim its, in­
crease the availab le tract ion, or keep a veh icle
o n the road if road departu re is a result of
driver ina ttent io n. Instead , ESC imp roves the
poss ibility of keep ing t he vehicle under con­
trol and on the road during extreme maneu­
vers by using the driver's steering i nputs to
help keep the vehicle go ing in the intended di­
rect ion. If you are traveling at a speed that
causes you to run off the road before ESC can
provide any assistance, you may not experi­
ence the benefits of ESC.
ESC is switched on all the time. In certain sit­
uat ions when you need less traction, you can
switch off ASR by pressing the butto n
[ill
~ page 187, fig. 174 or~ page 187,
fig. 175. Be sure to sw itch ASR on aga in when
you no lo nger need less traction.
The following systems are integrated in the
ESC:
Anti-lock bra king sy stem (ABS )
ABS prevents the whee ls from locking up
when brak ing. T he vehicle can st ill be steered
even dur ing hard braking. App ly steady pres­
su re to the brake peda l. Do not pump the ped­
al. A pulsing in the brake pedal ind icates that
the system is helping you to brake the veh icle .
Brake assi st system
The brake ass ist system can decrease braking
distance. It increases brak ing power when the
drive r presses the brake peda l quickly in emer­
gency s ituations. You must press and hold the
brake pedal unti l the s ituation is over. In
vehicles wi th adap tive c rui se control*, the
brake assis t system is more sensitive if the
•
•

294 Index
Important things to do before driving .. 126
Improperly worn safety belts ..... .. ... 142
Indicator lights ............ .. .. .. .. .. 13
Airbag system . . . . . . . . . . . . . . . 154, 155
Dynamic steering ...... ... .. .. .. .. . 190
PASSENGER AIR BAG OFF ........ .. . 155
also refer to Warn ing/ indicator l ights .. 13
Infant seats . . . . . . . . . . . . . . . . . . . . . . . 171
I nflatable spare tir e ...... .. .. .. .. .. . 261
I nflating ........ ......... ... .... . 262
Installing ch ild safety seats
Safety belts .............. ... .. .. . 175
Installing the upper tether strap on the
anchorage . .. ............... .. .... . 182
I nstruments
Adjusting the lighting ........... .. .. 52
I nstruments and controls ... .. .. .. .. . . 10
General illustration ....... .. .. .. .. . .. 8
Interior lights Front .. .. .. ................ ... ... . 52
Rear .. .... .......... ...... ... .. .. 52
Intermittent (windshield wipers) . . . . . . . 55
J
Jump-starting .............. ... .... . 274
Jumper cables ................ ... ... 275
K
Key .... ... .. ................ ... .. .. 32
Battery replacement ...... .. .. .. .. .. 33
Check light ....... ..... .. .. .. .. .. .. 33
E mergency key . . . . . . . . . . . . . . . . . 32, 84
I gnition/engine on/off . . . . . . . . . . . . . . . 82
Key replacement ............. .... .. 32
Mechanical key . . . . . . . . . . . . . . . . . 32, 33
removing . . . . . . . . . . . . . . . . . . . . . . . . . 84
un locking/locking ........ .. . 34, 35, 37
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . . . 98
L
Lane Change Ass istant
refer to side assist ........ .. .. .. .. . 111
LATC H .. .. .. ............. .. .. .. ... 179
Descr ipt ion .... .... ...... .. .. .. .. . 180
Install ing a child restraint ...... .. ... 180 Location
. . . . . . . . . . . . . . . . . . . . . . . . . 179
Mounting and releasing the anchorage
hook ............................ 180
Launch Control Program ......... .. .. . 99
Leather cleaning/protect ion .. .. .. .. .. 205
Leaving home ..... ................ .. 50
Left hand drive . . . . . . . . . . . . . . . . . . . . . . 51
Lifting jack . .... .. ............. .... 265
Lifting vehicle ... .. ............. .... 278
Light adaptive light . . . . . . . . . . . . . . . . . . . . . . 49
Coming/Leav ing home . . . . . . . . . . . . . . . 50
Daytime running lights . . . . . . . . . . 49, 50
Exterior lighting . . . . . . . . . . . . . . . . 49, 50
Fog lights/rear fog light(s) .......... . 49
Interior/reading . . . . . . . . . . . . . . . . . . . . 52
Low beam ..... .. ............. ..... 49
Rear fog lights ... ... .......... .. .. . 49
Side marker lights ............. .... . 49
Travel mode . . . . . . . . . . . . . . . . . . . . . . . 51
Light/rain sensor Headlights . ..... ................ .. 49
I ntermittent (windshield wipers) . .... . 55
Sen sor defe ctive . . . . . . . . . . . . . . . . . . . . 22
Lights
Emergency flashers . . . . . . . . . . . . . . . . . 51
High beam .... .. ................ .. 50
Tu rn signals ... ... ................ . 50
Locking Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Locking/unlocking at the lock cylinder . . . . . . . . . . . . . . . . . . 3 7
by remote control . . . . . . . . . . . . . . . . . . 34
with the centra l locking switch ... .... . 35
with the conven ience key . . . . . . . . . . . . . 35
Low beams ..... .. ..... ........... .. 49
Lower anchorage locator button ....... 180
Lower universal anchorage bars (Canada) 179
Lower universal anchorages (Canada) 179
Luggage Stowing . ..... .. ............. .... 132
Luggage compartment ........... .. .. . 70
Cargo net ... .. .. ............. .. .. . 73
Cover ......... .. ................ .. 71
Enlarging . . . . . . . . . . . . . . . . . . . . . . . . . 71
Floor ......... .. ................ .. 76
Lid ....... .... .. ................. . 38