engine AUDI S4 SEDAN 2013 Service Manual

92 Transmi ssion
• Wait a moment until the transm ission
shifts . You wi ll notice a slight movement
when the gear engages.
• Re lease the brake pedal and press the accel­
erator pedal
c::> .&, .
Stopping t empora ril y
• Press the brake peda l to prevent the vehicle
from moving, for example at traffic lights .
• Do not press the accelerator pedal when do -
ing this.
P a rk ing
If the selector lever is not in the P position
when you open the driver's door, the vehicle
could ro ll. The message
T ran smi ssio n: Car
m ay roll! Shift to p ark!
appears.
• Press and ho ld the brake pedal
c::> .&, .
• Activate the parking brake .
• Hold t he interlock button down, place the
selector lever in the
P position and release
the interlock button.
Stopping on an inclin e
• Always press the b rake peda l to hold the ve ­
hicle in p lace and prevent it from "rolling
back" c::>
.&,. Do not try to prevent the ve hicle
from "ro lling back" when a gear is engaged
by increasing the engine speed
c::> (D.
Starting on an incline
• Activate the parking brake .
• With the driving gear se lected, press the ac­
celerator pedal carefully. The parking brake
will release automat ically if your seat be lt is
fastened.
Dr ivin g on an incline: Under certain circum­
stances, such as driving in the mountains, it may be useful to sw itch temporarily to the
manual shift program in order to adjust the
gears to the driving conditions by hand
c::> & .
On slopes, activate the parking brake first and
then move the selector lever to the P posit ion.
This prevents the lock ing mechanism from be­
ing loaded too heav ily and w ill make it easier
to move the selector leve r out of P .
A WARNING
-Never leave your vehicle with the engine
running while in gear. If you must leave
your veh icle when the engine is running,
activate the pa rking brake and move the
selecto r lever to P .
- Powe r is still transmitted to the w heels
when the engine is runn ing at idle. To
p revent the vehicle from "c reeping", you
m ust keep your foot on the brake when
the engine is running and the selector
lever is in D/S or R or "t iptronic" mode is
selected.
- Do not press the accelerator pedal when changing the se lector lever position
while the veh icle is stationary and the
engine is running.
- Never sh ift into R or
P while driving .
- Before driving down a steep s lope, re-
duce your speed and shift into a lower
gear with "tiptronic".
- Do not ride the brakes o r press the bra ke
pedal too often or too long. Constant
brak ing ca uses the brakes to overheat
and substantially reduces braking per­
formance, increases braking d istance or
causes complete failure of the brake sys­
tem.
- To preve nt the vehicle from ro lling back
when stopp ing on inclines, always hold it
in place with the b rake pedal or parking
b rake.
- Never hold the vehicle on an incline with
a slipping clutc h. T he clutch opens auto­
mat ica lly when it becomes too hot from
the overload. An indica tor l amp
mJ ill u­
minates and a driver message appears
c::>
page 95 when the clutc h is overload­
ed .
(D Note
-When s topping on an incl ine, do no t try
to hold t he vehicle in place by pressing
the acce lerator pedal while a driving gear
is se lected. This can cause the S t ron ic
transm ission to overheat and can dam­
age it. Activate t he parking brake or

94 Transmi ssion
When acce lerating, the transmiss ion will au­
tomatically shift into the next gear before the
engine reaches its maximum RPM.
I f you apply a ligh t throttle when accelerat­
ing, tiptronic will automatically shift from 1st
to 2nd gear to save fuel. If you app ly a heavy
thrott le, the transmission will stay in 1st gear
unti l near maximum RPM is reached, or unt il
the dr iver shifts into 2nd gear.
If you take your foot off the accelerator peda l
when dr iving down a steep incline, tiptronic
will downshift from the selected gear into the next lower gear until it reaches 1st gear,
based on road speed and eng ine RPM . Auto ­
mat ic downshifti ng is interrupted as soon as
you apply the th rottle aga in .
(D} Tips
- When you sh ift into the next lower gear,
the transmiss ion will downshift only
when there is no possibility of over-rev­
v ing the engine.
- When the kick-down comes on, the
transmission will sh ift down to a lower
gear, depending on vehicle and engine
speeds.
- Tiptronic is inope rat ive when the t rans­
mission is in the fail-sa fe mode.
Kick-down
A pp lies to vehicles: with S tro nic tr ansmiss ion
Kick-down enables maximum acceleration.
When you press the acce lerator pedal down
beyond the resistance po int, the automatic
transmission downshifts into a lower gear, de­
pending on vehicle speed and engine RP M.
It
shifts up into the next h igher ge ar once the
max imum specified engine RPM is reached.
& WARNING
Please note that the wheels could spin on
slick or slippery roads when kick-down is
active.
Launch Control Program
App lies to vehicles : wit h S tronic tra nsmi ssio n
The Launch Control Program provides the
best acceleration possible when starting from
a stop .
Requirement: The engine must be at operat­
ing temperature and the steering wheel must
not be t urned .
.. Press the
I~ OF F! button c::;, page 186 while
the engine is running. The
fl ind icator light
illuminates in the instrument cluster and
Traction control (ASR ): Off . Warning! Re­
stricted stability
appea rs in the driver infor­
mat io n system display .
.. Move the se lector lever to the D/S posit ion
or select the
d ynamic dr iv ing mode in Audi
drive select*
c::;, page 112 .
.. Press the brake peda l strongly with your left
foot and ho ld it down for at least one sec­
ond.
.. At the same time, press the accelerator
pedal down complete ly w ith your r ight foot
until t he e ngine reaches and mainta ins a
h igh RP M.
.. Remove yo ur foot from the brake pedal
w ith in S seconds
c::;, A, .
& WARNING
-Always adapt your driving to the traffic
f low .
- On ly use the Launch Cont ro l Program
when road and traffic conditions a llow it
and other drivers w ill not be endangered
or annoyed by your driving and the vehi­
cle's acceleration.
- Please note that the d riving wheels can
spin and the vehicle can break away
when ASR is switched off , especially
when the road is slippery .
- Once you have accelerated, you shou ld
sw itch the ASR back on by pressing the
lfl O FF ! button . .__ _____________ _J ...

Audi adaptive cruise control and braking guard 105
-If you switch the ASR/ESC off or the off­
road mode on (allroad), Audi braking
guard switches off automatically
<=> page 186.
-Switch Audi braking guard off when you
are loading the vehicle onto a vehicle car­
rier, train, ship or other type of transpor­
tation. This can prevent undesired warn­ ings from the braking guard system .
Messages
Applies to vehicles: with Audi adaptive cruise co ntrol
Braking guard: Off
This driver message appears if the system is
turned off via the radio/MM I*. Otherwise, if
the system is turned off, the information ap­
pears every time shortly after the start of the
trip.
Braking guard: Activated
This driver message appears if sharp brake
pressure was applied due to an acute warning.
•••
Three white dots appear if a setting cannot be
selected with the operating lever. For exam­
ple, this happens if you want to raise/lower
the speed even though there was no previous­
ly saved speed .
ACC: Deactivation
The driver message appears in vehicles with
manual transmission . If the clutch pedal was
pressed down for too long, the adaptive cruise
control turns off. A chime sounds as a remind­
er.
ACC: Sensor blocked
This message appears if the sensor view is ob­
structed, for example by leaves, snow, heavy
spray or dirt. Clean the sensor
<=>page 97,
fig. 96.
ACC: not available
The driver message appears if there is a mal­
function. The adaptive cruise control turns off.
A chime sounds as a reminder. Have the sys- tern checked by an authorized Audi dealer or
authorized Audi Service
Facility.
ACC: unavailable
The driver message appears if, for example,
the brake temperature is too high . The adap­
tive cruise control is temporarily unavailable.
A chime sounds as a reminder.
Engine speed!
This driver message appears in vehicles with
manual transmission if the driver had not up­
shifted or downshifted in time while using
adaptive cruise control braking or accelerat­ ing, causing the vehicle to exceed or not reach
the permitted limit speed. The adaptive cruise
control turns off. A chime sounds as a remind­
er .
Shift lever position!
Vehicles with an automatic transmission: the
driver message appears if the selector lever is
shifted to the N position . The adaptive cruise
control is not available while in this position .
Vehicles with manual transmission: the driver message appears for vehicles with manual
transmission if there is no forward gear en­
gaged, meaning if the reverse gear or the 1st
gear is engaged or if the selector lever is in
the neutral position. The adaptive cruise con­
trol is not available while in this position.
Stabilization control (ESC)
This message appears if the electronic stabili­
zation control (ESC) is taking action to stabi­
lize the vehicle. The adaptive cruise control
turns off . A chime sounds as a reminder.
Speed too low
This message appears if the current speed is
too low
to set or to maintain the desired
speed .
The speed being saved must be at least
20 mph (30 km/h). The cruise control is
turned off for speeds lower than 12 mph
(20 km/h). The adaptive cruise control re­
mains turned on for speeds above 95 mph
(150 km/h) (override).
It will stabilize again at.,..

Audi drive select Driving settings
Introduction
App lies to vehicles: w it h drive se lect
Audi drive select provides the possibility to ex­
perience different types of veh icle sett ings in
one vehicle. For instance, using the three
Comfort, Auto and Dynamic modes, the driv­
er can switch from a sporty to a comfortab le
driving mode with the press of a button.
Addit ionally, in vehicles with MM I*, the vehi ­
cle setup for
Individual* mode can be cus­
tomized by you. This makes it possib le to
combine settings such as a sporty engine tun­
ing with comfortable steering.
A WARNING
Improper use of the Audi drive select can
cause collisions, other acc idents and seri­
ous personal injury.
Description
Ap plies to vehicles: w it h drive se lect
The vehicle setup in each mode depends on
the vehicle's features. However, the engine,
automatic t ransmission* and steering are al­
ways involved.
.
Engine and automatic transmission*
Depending on the mode, the engine and the
automatic transmission respond quicker or in
a more ba lanced manner to acce lerator pedal
movements. In the sporty dynamic mode, the
automatic transmission shifts at higher R PMs.
Steering
The steering adapts in terms of steering effort
and steering ratios . Indirect steer ing that
moves easily, like the stee ring in comfort
mode, is best su ited to long dr ives on a high­
way. In contrast, dynamic mode prov ides
sporty, di rect steering .
The follow ing applies to vehicles with dynam ic
steer ing*: the stee ring ratio changes based on
ve hicl e speed in order to maintain optimum
Audi drive select 111
steering effort for the driver at all times. This
sets the steering to be less sensitive at higher
speeds in order to provide improved vehicle
control. At reduced speeds, however, steer ing
is more direct in order to keep the steering ef­
fort as minimal as possible when the driver is
maneuveri ng the vehicle . At low and average
speeds, dynamic steering addit iona lly pro­
vides more responsive steering pe rformance.
Adaptive dampers*
The adaptive dampers* use sensors to record
i nformation regarding steering movements,
braking and acceleration operations by the
drive r, road surface, driving speed, and load.
T his makes it possible to adapt damp ing to
the driving situation virtually i n rea l time.
Audi drive select also makes it possible to sat­
isfy the desire for sporty s uspension (Dynam­
ic) and comfortable suspension (Comfort)
without giv ing up balanced tuning (Auto).
Sport differential*
As a component of the all whee l dr ive system
(quattro ®)
q page 189, the sport differential*
distributes the driving power to the rear axle
depending on the situation . The distribution
of power var ies depending on the mode se­
lected. The goal is a high level of agility and
ability to accelerate on curves . The ve hicle is
very respons ive to steering .
Adaptive cruise control*
The behavior when accelerating can be adjust­
ed from comfortab le to sporty, depending on
the drive select mode. Adaptive cru ise control
also responds to the driving behavior of the
vehicle ahead in a more conservative or sporty
manner .
Engine sound*
The sound of the eng ine is adapted to the se­
lected mode and ranges from subtle to sporty.
0) Tips
-In some models, the maximum vehicle
speed can only be reached in the
Auto
and Dynamic modes.

112 Audi drive select
-For vehicles with an automatic transmis ­
sio n*, se lecting the
Dynamic mode re­
su lts in sporty shifting characteristics .
The S gear position engages automati­
cally.
- In vehicles that have dynamic steering*,
operating noise is heard when starting or
stopping the eng ine . This does not ind i­
cate a problem .
Selecting the driving mode
Applies to vehicles: w ith drive se lect
You can choose between Comfort, Auto, Dy­
namic
and Individual * modes.
Fig. 112 Center console: Control for Au di dri ve select
Fig. 113 MMI•: Aud i drive select
Adjusting the Individual mode
Applies to vehicles: with MMI a nd drive se lect
.,. To set the mode, press the f:l:-.i button
~ fig. 112 multiple times until the desired
mode is displayed in the instrument cluster .
Or
.,. In the MMI*, select: ICARlfunction button>
Comfort, Auto, Dynamic or Individual *.
In vehicles without the MMI*, the~:/;,~ button
is found underneath the shift/selector lever.
You can change the driving mode when the ve ­
hicle is stationary or wh ile driving . If traffic
permits, after changing modes, br iefly take
your foot off the accelerator pedal so that the recently selected mode is also activated for
the engine and transm ission .
Comfort -provides a comfort-oriented vehicle
setup and is suited for long drives on h igh­
ways .
Auto -provides an overall comfortable yet dy­
namic driving feel and is suited for every day
use.
Dynamic -gives the vehicle a sporty driving
feel and is suited to a sporty driving style.
Individual * -¢page 112.
& WARNING
Pay atte ntion to traffic when operating
Audi drive select to prevent potential risk
of an accident.
You can personally specify the vehicle setup in the MMI* .
.,. Select the ICAR I f unc tion button > Set indi ­
vidual
control button. Once you select the
menu, you will automatically drive in the
in·
dividual
mode.
Systems Comfort
Engine/Transmission
balanced
Steering comfortable T
he equipment in your vehicle will determine
wh ich sett ings you can adjust. The following
table provides an overview of the characteris­
tics of each driving mode .
Auto Dynamic
balanced sporty
balanced sporty

Systems Comfort
Dynamic steering*
comfortable/ind ire ct
Adaptive dampers* comfortable
Sport differential* balanced
Adaptive cruise control* comfortable
Engine sound * subtle
(D) Tips
Your Individual* mode settings are auto­
matically stored and assigned to the re­
mote control key being used.
Audi drive select 113
Auto Dynamic
balanced/direct sporty/direct
balanced sporty
agile sporty
balanced sporty
balanced sporty

Homelink®
Universal remote
control
Description
Appl ies to vehicles: with Horne Link
The Homelink universal remote control can
be programmed with the remo te control for
devices that are already present.
With Home Link, you can control devices such
as the garage door, security systems, house
l ights , etc. comfortab ly from the inside of you
veh icle .
H ome Link ma kes it possible for you to rep lace
three differen t remote controls from dev ices
in your home with one universal remote. This
feature works for most garage door and exte­
rior door motor signals. Programming the in­
dividual remote control for your remote con ­
trol takes p lace near the center of the radiator
grille. There is a control module attached at
this location .
A one-t ime programming of the sensor must
be perfo rmed before you are able to use sys­
t ems w ith Homelink. If the system does not
activate after performing the one-t ime pro­
gramming, check whether the system uses a rolling codec:>
page 124 for veh icles without
the M MI*.
_& WARNING
- Never use the Homelink ® transmi tte r
with any garage door opener that does have not the sa fety stop and reverse fea ­
tu re as req uired by federa l safety stand­
ards. Th is includes any garage door open­
er mode l manufact ured before April 1,
1982.
- A garage door opener which cannot de­
tect an object, signaling the door to stop
and reverse does not meet current feder­
al safety standards . Us ing a ga rage door
opener without these features increases
risk of serious in ju ry or death.
Homelink ® 121
-For safety reasons never re lease the
parking brake or start the engine while
anyone is standing in front of the vehicle.
- A garage door or an estate gate may
sometimes be set in mot ion when the
Homelink ® remote control is being pro­
grammed . If the device is repeatedly ac ­
tivated, th is can overstrain motor and
damage its e lectrical components -an
overhea ted mo to r i s a fire hazard !
- To avo id possib le injuries or p roperty
damage, please always make abso lutely
certain that no persons o r ob je cts are lo­
ca ted in the range of mo tion of any
equi pment being ope rated .
(D Tips
- If you would li ke more information on
H ome link ®, where to purchase the
Home link ® compa tib le produc ts, or
would like to purchase the Homelink ®
Home Lighting Package, please call to ll­
free: 1-800-355-3515.
- For Declaration of Compliance to United
States FCC and Ind ustry Canada reg ula­
tions c:>
page 275.

-For security reasons, we recommend that
you clear the programmed buttons be­
fore se lling the vehicle .
Programming the transmitter (version
B)
Applies to vehicles: with Home Link
,,,,, r ,o :O·,) ,,;;~
®
Fig. 124 Hea dli ner: c o n tro ls
Fig. 125 Dis ta n ce betw een th e radiato r gri lle a nd the
hand t rans mitte r
Programming: phase 1 on the control unit
l. Switch on the ignition (do not start the
engine) .
2 . Press and hold both of the outer Home­
Link buttons ¢
fig. 124 unti l the LED @
turns off completely (about 20 seconds).
This procedure clears the standard codes
that were set at the factory and does
not
need to be repeated again to program the
other buttons .
3 . Briefly press the Homelink button that
you would like to program .
4. Wait until the LED @beg ins to blink
quickly . The Homelink module will now
remain in learning mode for 5 minutes.
5 . Now stand in front of your vehicle with
the original hand transmitter for the ga­
rage door opener or for the device that
Homelink ® 123
you wou ld like to allocate to the Home­
Link button .
Programming: phase 2 on the radiator
grille
6. Hold the or iginal hand transmitter some­
what towards the center of your vehicle's radiator grille ¢
fig. 125.
7. Now activate (press) the hand transm it­
ter.
8. Pay attention to the turn sig nals for your
vehicle when activating the hand trans­
mitter .
If the emergency flashers blink
three times, the programm ing was suc­
cessful. If the emergency flasher only
blinks one time, the 5 minute time lim it
for the adaptation has expired or the pro­
gramming was unsuccessful. Repeat the
programming from step 3 on the controls
or se lect another distance from the radia­
tor grille.
9. If the garage door or other devices still
fail to be activated with the Homelink control buttons after programming is
completed, it is possible that these sys­
tems might be working with a roll ing code
instead of the normal fixed code . A
Roll­
ing code programming must be per­
formed ¢
page 124.
Program the remaining two buttons according
to the instructions ment ioned above . Begin
similarly with the 3rd step if the program­
ming connection was successful for the f irst
button .
Remote contro l units for garage door openers
in Canada are set to stop transmitting radio
frequency signa ls after two seconds . This time
may not be sufficient for the Homelink sys­
tem to learn the radio frequency signal. Per­
form all other steps as described above.
Pressing a button
.,. To open the garage door, press the pro­
grammed b utton. The LED @will light up or
flash.
.,. To close the garage door, press the button
aga in.

Why safety belts?
Frontal collisions and the law of physics
Frontal crashes create very strong forces for
people riding in vehicles .
Fig. 130 Unbelted occupant s in a ve hicle heading for a
wall
Fig. 131 The vehicle c ras hes into the wall
The physical principles are simple. Both the
vehicle and the passengers possess energy
which varies with vehicle speed and body
weight . Engineers call this energy "kinetic en­
ergy ."
The higher the speed of the vehicle and the greater the vehicle's weight, the more energy
that has to be "absorbed" in the crash .
Vehicle speed is the most significant factor . If
the speed doubles from 15 to 30 mph (25 to
50 km/h) , the energy increases 4 times!
Because the passengers of this vehicle are not
using safety belts
r::;, fig. 130, they will keep
moving at the same speed the vehicle was
moving just before the crash, until something
stops them -here, the wall
c:> fig . 131 .
The same principles apply to people sitting in
a vehicle that is involved in a frontal collision .
Even at city speeds of 20 to 30 mph (30 to
50 km/h) , the forces acting on the body can Safety belts
13 7
reach one ton (2,000 lbs. or 1,000 kg) or
more . At greater speeds, these forces are
even
higher.
People who do not use safety belts are also
not attached to their vehicle. In a frontal colli­
sion they will also keep moving forward at the
speed their vehicle was travelling just before
the crash. Of course, the laws of physics don't
just apply to frontal collisions, they determine what happens in all kinds of accidents and col ­
lisions .
What happens to occupants not wearing
safety belts?
In crashes unbelted occupants cannot stop
themselves from flying forward and being in­
jured or killed. Always wear your safety belts!
Fig. 132 A driver not wear ing a safety belt is vio lently
thrown forward
Fig. 133 A rear passeng er not wearing a safety belt
w ill fly forward and strike the driver
Unbelted occupants are not able to resist the
tremendous forces of impact by holding tight
or bracing themselves . Without the benefit of
safety restraint systems, the unrestrained oc­
cupant will slam violently into the steer ing
wheel, instrument panel, windshield, or what­
ever else is in the way ¢ fig. 132 . This impact Ill-

138 Safet y belt s
with the vehicle interior has all the energy
they had just before the crash.
Neve r rely on airbags a lone for p rotec tion.
Even when they deploy, airbags provide only
addit io nal p rotection . Airbags are not sup­
posed to deploy in all kinds of accidents. Al­
though your Audi is equipped with a irbags, all
vehicle occupants, including the driver, must
wear safety belts correctly in order to min i­
mize the risk of severe injury or death in a
crash .
Remember too, that airbags wi ll deploy on ly
once and that your safety belts are always
there to offer protection in those accidents in
which airbags are not supposed to deploy or when they have a lready deployed . Unbelted
occupants can also be thrown out of the vehi­
cle whe re even more severe o r fatal in juries
can occu r.
It is also impo rtant for the rear passenge rs to
wear safety belts correctly. Unbelted passen­
gers in the re ar seats end anger no t on ly them­
selves but a lso the d river a nd other passen­
gers ~
fig. 133. In a frontal collision they will
be thrown forward violent ly, where they can
h it and injure the dr iver and/or front seat pas ­
senger.
Safety belts protect
People think it's possible to use the hands to
brace the body in a minor collision. It's simply
not true!
F ig . 13 4 Driver is co rrectly re st ra ined in a s udden b rak ·
i n g m an euve r
Safety belts used properly can make a big dif­
ference . Safety be lts he lp to keep passengers
in their seats, gradually reduce energy levels applied to the body in an accident, and help
prevent the
uncontrolled movement that can
ca use serio us in juries . In addition, safety be lts
reduce the danger of being thrown out of the
vehicle .
Safety be lts attach passengers to the car and
give them the benefit of being slowed down
more gently or "softly" through the "give" in
the safety belts, crush zones and other safety
features engineered into today's vehicles. By
"abso rbing" t he kinetic energy over a longer
per iod of t ime, the safety belts make the
forces o n the body more " tolerable" and less
l ikely to ca u se inju ry.
Although these examples are based on a fron­
ta l co llision, saf ety belts can a lso substantia l­
ly red uce the r isk of injury in other kinds of
cr ashes. So, whether you're on a long t rip o r
j u st going to the corner store, a lways buckle
u p and make sure others do, too. Accident sta ­
tistics show that veh icle occupants properly
wearing safety belts have a lower risk of be ing
injured and a much better chance of surviving
an accident. Properly using safety be lts also
greatly increases the ability of the supplemen ­
tal airbags to do the ir job i n a collision. Fo r
t hi s reason, wea ring a safety belt is legally re­
quired in mos t countr ies includi ng mu ch of
t h e Un ited States and C anada .
Althoug h your Aud i is equipped with a irbags,
you still have to wear the safety be lts prov id­
ed . F ront ai rbags, fo r example , a re ac tivated
o nly in some front al coll isions. The fron t air­
bags are not act ivated in a ll fron tal collis ions,
in side and rear co llisions, in roll overs or in
cases where there is not eno ugh deceleration
through impact to the front o f the veh icle.
The same goes for the other a irbag systems in
your Audi. So, always wear your safety belt and make su re everybody in your veh icle is
properly restrai ned !