2021 AUDI S4 ESP

8W1012721BC
Sitting correctly and safely



injury during a sudden braking maneuver or
accident. This especially applies to children
in the front passenger's seat or children who
have their head near the side airbag deploy-
ment area, if the airbag system is deployed
during an accident. This incorrect seating
position can cause severe or even fatal inju-
ries.
Make sure there is enough space in front of
the child in the child safety seat. If necessa-
ry, adjust the angle and position of the seat
in front of the child safety seat.
The rear side of a forward-facing child safety
seat should be positioned as close as possi-
ble to the backrest on the vehicle seat. If the
head restraints make it difficult to install a
child safety seat, adjust or remove them if
necessary > page 67. Reinstall the head re-
straints immediately once the child safety
seat has been removed.
Always make sure that the backrest on the
seat where the child safety seat is installed
is securely locked in place and cannot move
forward. Otherwise, the backrest where the
child safety seat is secured could move for-
ward in the event of an accident or other
emergency situation.
NEVER use a rear-facing child safety seat on
a seat with an ACTIVATED FRONT AIRBAG;
this could cause DEATH or SERIOUS INJU-
RIES to a CHILD.
— Always secure child safety seats on the
rear seats. If exceptional circumstances re-
quire the child safety seat to be placed on
the front passenger's seat, then the front
passenger's airbag must be deactivated.
Always make sure that
PASSENGER AIR BAG OFF %; stays on
while driving. If
PASSENGER AIR BAG OFF %; does not
turn on, remove the child safety seat and
install it again according to the child safe-
ty seat manufacturer instructions. If
PASSENGER AIR BAG OFF 4%; still
does not turn on, the front passenger's
seat must not be used. Drive to an author-
ized Audi dealer or authorized Audi Service

Facility and have the airbag system in-
spected.
— If you must use a forward-facing child safety
seat on the front passenger's seat, move the
seat as far back as possible so that it is as
far as possible from the front passenger's
airbag. While doing this, make sure the seat
can be adjusted all the way. A child in a child
safety seat on the front passenger's seat can
receive a severe impact if the front passeng-
er's airbag deploys, which increases the risk
of serious or fatal injury.
— Replace the child safety seat after an acci-
dent because there could be damage that is
not visible.
— Even if a child is not sitting in the child safe-
ty seat, the child safety seat must be se-
cured. An unsecured child safety seat may
be thrown through the vehicle interior dur-
ing sudden braking maneuvers or an acci-
dent.
(ee aca em Letitia m imate)
Always secure children in a child safety seat de-
signed for the body size, weight, and age of the
child.

You can secure child safety seats in your vehicle
using the lower LATCH anchors or the safety
belts. You can also secure child safety seats to
the top tether anchor. Depending on the child
safety seat, it may also be necessary to secure it
to the top tether anchor. In Canada, securing for-
ward-facing child safety seats to the top tether
anchors is required by law.
Always transport children in the rear seats
Accident statistics show that children that are se-
cured correctly in the rear seats are safer than in
front seats. Always transport children in suitable
child safety seats secured on the rear seats.
In exceptional circumstances: transporting
children in the front passenger's seat
If exceptional circumstances require the child
safety seat to be placed on the front passenger's
seat, then the front passenger's airbag must be
deactivated. Please note the important
77
>

8W1012721BC
Sitting correctly and safely

> Pull on the child safety seat to check if both
sides are engaged correctly in the LATCH an-
chors.
> If possible, also secure the child safety seat to
the respective top tether anchor in the vehicle
=> page 80.

Z\ WARNING
The LATCH anchors in the vehicle are only de-
signed for child safety seats with the LATCH
system. To reduce the risk of serious or fatal
injury, never secure other child restraint sys-
tems, belts, or objects to the anchors.

G) Tips
The LATCH anchors are designed for a total
weight (child and child safety seat combined)
up to 65 lbs (29 kg). If the total weight is
greater than this, the child safety seat must
be secured with the vehicle safety belt.
Tae Ma CRNA LR LCL a
th
Observe the safety precautions > page 76. The
front passenger’s seat is a dangerous location for
a child, even with an advanced airbag system. If
exceptional circumstances require the child safe-
ty seat to be placed on the front passenger's
seat, then the front passenger's airbag must be
deactivated. Please note the important informa-
tion for this > page 77, Correct positioning for
children and > page 74, Advanced airbag sys-
tem.
Securing child safety seats
> Activate the child safety lock > page 44.
> If you secure a child safety seat to the rear seat,
secure any unused safety belts that are within
reach of the child > A\, > page 81.
> If you secure a child safety seat to the front
passenger's seat, adjust the front passenger's
seat to the highest position.
> Secure the child safety seat according to the
child safety seat manufacturer instructions.
> If necessary, activate the belt retractor lock
=>page 79.
> If the child safety seat is secured on the front
passenger's seat, adjust the front passenger's
seat backrest until it rests flat against the child
safety seat. Also make sure that the upper safe-
ty belt fixture is behind the child safety seat.
> If you secure a child safety seat on the rear
seat, also secure it to the correct top tether an-
chor if possible > page 80.
Activating the belt retractor lock
If you secure a child safety seat using the vehicle
safety belt, you must activate the belt retractor
lock. Follow the child safety seat manufacturer
instructions.
The belt retractor lock prevents the safety belt
from becoming loose while driving, which could
result in the child safety seat no longer being ad-
equately secured.
> Secure the child safety seat according to the
child safety seat manufacturer instructions.
While doing so, pull out the safety belt. Insert
the safety belt into the belt latch that belongs
to that seat until it audibly locks.
> Pull the upper belt out completely and then al-
low it to retract. You will hear a clicking sound
while the belt is retracting. It will not be possi-
ble to pull the safety belt out any farther.
> Push the child safety seat into the seat and al-
low the belt to retract more.
> Make sure that the child safety seat cannot
move more than 1 inch (2.5 cm).
Deactivating the belt retractor lock
> Unbuckle the safety belt from the belt latch.
> Remove the child safety seat according to the
manufacturer instructions.
> Allow the safety belt to retract completely. The
belt retractor lock is deactivated.

ZA WARNING
— A safety belt that is not locked by the belt
retractor lock or a locking device cannot se-
cure a child safety seat while driving or in
the event of an accident, which increases the


risk of fatal injury. Always make sure the >

79

Sitting correctly and safely


belt retractor lock on the safety belt is acti-
vated if the child safety seat manufacturer
instructions require it.
— Due to the risk of fatal injury, never place a
rear-facing child safety seat on the front
passenger's seat when the front passenger's
airbag is switched on.
— For the child safety seat to offer the maxi-
mum protection, it is especially important
to route the vehicle safety belt correctly. Al-
ways follow the instructions from the child
safety seat manufacturer for routing the
safety belt correctly. Incorrectly fastened
safety belts can cause injuries, even during
minor accidents.

lly securing a child safety seat to
the top tether a


RAZ-0325
Fig. 71 Version @ rear shelf / Version @) rear backrest: top
tether anchors for securing a child safety seat with an up-
per strap
80
RAZ-0093


Fig. 72 Version @ rear shelf / Version @ rear backrest: se-
curing the upper strap on the top tether anchor
Observe the safety precautions > page 76.
There is a top tether anchor behind every seat in
the rear bench seat to additionally secure a child
safety seat with an upper belt.
> Move the head restraint behind the child safety
seat upward.
> Applies to: version 1: Fold the cover for the top
tether anchor upward.
> Guide the upper belt on the child safety seat
under the head restraint or along both sides of
it and toward the rear (depending on the child
safety seat model).
> Fasten the belt to the top tether anchor
=> fig. 72. While doing this, make sure the belt
is not twisted and is not running over any sharp
edges.
> Secure the child safety seat according to the
child safety seat manufacturer instructions.
> Pull the belt tightly so that the child safety seat
rests at the top of the seat backrest.
> If necessary, move the head restraint behind
the child safety seat downward.

Storage and convenience


— Applies to: vehicles with luggage compart-
ment cover: The luggage compartment cov-
er must always be securely fastened when in
use to reduce the risk of an accident.
— Loose objects can be thrown around the ve-
hicle interior during sudden driving or brak-
ing maneuvers, which increases the risk of
an accident. Always stow objects securely in
the luggage compartment and secure them
at the tie-downs. Use straps suitable for
heavy objects.
— If pieces of luggage or objects are secured
to the tie-downs with unsuitable or dam-
aged straps, this can increase the risk of in-
jury during braking maneuvers or accidents.
— When transporting heavy objects, the vehi-
cle characteristics will change due to the
shift in the center of gravity, which increases
the risk of an accident. You may need to
adapt your driving style and speed to the
current conditions.
— The cargo net* is only strong enough to se-
cure light objects. Heavy objects are not ade-
quately secured. Attempting to secure heavy
objects increases the risk of injury.
— Never exceed the permitted axle and load
and vehicle weight > page 287.
— Never secure a child safety seat to the tie-
downs.
— Never leave your vehicle unattended, espe-
cially if the luggage compartment lid is
open. Children could enter the luggage com-
partment and close the luggage compart-
ment lid from the inside. This creates the
risk of fatal injury, since the children would
be locked in and may not be able to escape
by themselves.
— Do not allow children to play in or on the ve-
hicle. Close and lock the luggage compart-
ment lid as well as all other doors when you
leave
the vehicle.
— Never transport passengers in the luggage
compartment. Every passenger must be cor-
rectly secured with the safety belts in the
vehicle > page 68.
— Be careful when releasing the backrest and
folding
it forward. To reduce the risk of be-


ing pinched, pay attention and check when
folding backrests forward.
— The backrest must be securely latched so
objects cannot slide forward out of the lug-
gage compartment during sudden braking.
— The backrest must be latched securely to en-
sure that the safety belt is protecting the
center seating position.
— Always pull forward on the backrest to make
sure it is check if it is correctly locked in
place.


84
() Note
—To reduce the risk of damage, move the rear
head restraints down > page 67 before fold-
ing the rear backrests forward.
— When folding the backrest forward, make
sure the outer safety belts are in the belt
guide recess so that they do not get pinched
in the backrest lock and damaged. Other ob-
jects should be removed from the rear
bench seat to protect the backrest from
damage.
— To reduce the risk of damaging the front
seats, make sure there is enough space be-
tween the front seat and the rear seat
equipment when folding the center backrest
forward.
— If you move the front seat back when the
rear seat backrest is folded forward, you
could damage the head restraints on the
rear seat.
— Make sure that the heating grid strips for
the rear window defogger are not damaged
by abrasive objects.
— Applies to: vehicles with manual luggage
compartment cover: Let the luggage com-
partment cover roll up slowly to reduce the
risk of damage.
— Applies to: vehicles with partition net: Let
the partition net roll up slowly to reduce the
risk of damage.
(i) Tips
— The tire pressure must be adapted to the
load > page 245.
— You can purchase straps at specialty stores.

8W1012721BC
Warm and cold

3-zone deluxe automatic climate control
Applies to: vehicles with 3-zone deluxe automatic climate control system

B8W-0137



Fig. 91 3-zone deluxe automatic climate control system: cockpit controls

B8W-0138


Fig. 92 3-zone deluxe automatic climate control system: rear controls
Press the knobs, buttons or rocker switches to Observe the safety precautions > A\ in Descrip-
turn the functions on or off. When the function is tion on page 90.
switched on, the LED in the respective button or
knob turns on.

OFF] Climate control system

The [OFF] button switches the climate control
system on or off. It also switches on when you
press another button or a knob. Airflow from out-
side is blocked when the climate control system
is switched off.

Some rocker switches can be assigned with multi-
ple functions. The various functions can be acti-
vated by pressing on the switch multiple times.
On right-hand drive vehicles*, the functions of
the rocker switches @) and ©) are reversed.
The driver and front passenger settings can be A/C / A/C MAX* Cooling mode
adjusted separately. You can adjust the settings You can switch the respective cooling mode on
for the rear of the vehicle using the controls in and off with the rocker switch @).
the rear > fig. 92.
91

8W1012721BC
Driving


do not inadvertently press the accelerator
pedal and always shift into “P” when the ve-
hicle is stopped.
— If you leave the vehicle, switch the ignition
off and take the key with you. This is espe-
cially important when leaving persons or an-
imals in the vehicle. Otherwise, the vehicle
could start unintentionally, the parking
brake could release, or electronic equipment
could activate, which increases the risk of an
accident.
— No persons or animals should be left in a
locked vehicle. Locked doors make it more
difficult for emergency workers to enter the
vehicle, which puts lives at risk.
— If you do not begin driving immediately af-
ter releasing the brake pedal, your vehicle
may begin to roll backward. Press the brake
pedal
or set the parking brake immediately.
@) Note
If you have to stop on an incline, always press
the brake pedal to hold the vehicle in place to
reduce the risk of the vehicle rolling back-
ward. Do not try to hold the vehicle in place
by pressing and holding the accelerator pedal.
The transmission can overheat, which increas-
es the risk of damage.
Hill hold assist
If you take your foot off of the brake pedal when
driving on hills, the braking force will be held for
several seconds. At that time, you can start driv-
ing without the vehicle rolling backward.

Requirement: the driver's door must be closed,
the engine must be on, and the vehicle must be
traveling uphill.
> To activate hill hold assist, press and hold the
brake pedal for several seconds while the vehi-
cle is stationary.

ZA WARNING
— If you do not begin driving immediately af-
ter releasing the brake pedal, your vehicle
may begin to roll backward. Press the brake

pedal or set the parking brake immediately.

— The hill hold assist cannot hold the vehicle
on inclines in every scenario (for example,
on slippery or icy ground).
Gears and driving programs
(y—
(2—*


RAZ-0410:




R
N
i
D/S
~~ NEI
Fig. 94 Center console: selector lever


The automatic transmission shifts automatically
depending on the selected gear and the current
driving style. When driving with a moderate driv-
ing style, upshifting early and downshifting late
will help to improve fuel economy. When driving
with a sporty driving style, the transmission per-
mits higher RPMs.
The gears are displayed next to the selector lever.
— P (Park)
—R (Reverse): driving in reverse
—N (Neutral): idle
—D (Drive)
Selecting a gear
Requirement: the ignition must be switched on.
— Bring the vehicle to a full stop and press the
brake pedal.
— Press the release button () on the selector lev-
er.
—To select the nearest gear, move the selector
lever forward or back until you feel the first
pressure point.
—To skip a gear (for example, move from “D” to
“R”), move the selector lever past the pressure
point in the desired direction.
—The label next to the selector lever for the se-
lected gear will light up.
97

Driving

“N” (Neutral) gear
In the “N” gear, power is not transmitted to the
driving wheels. Use the “N” gear in a car wash
(with conveyor belts), for example.
If you unintentionally select “N” while driving
(faster than 1 mph (2 km/h)), you can also shift
back to “D” without pressing the brake pedal.
For safety reasons, the vehicle cannot be locked
when the transmission is in the "N” gear.
“Pp” (Park) gear
Requirement: the ignition must be switched on.
The vehicle is secured from rolling away by the
parking lock when in the “P” gear.
— Bring the vehicle to a full stop and press the
brake pedal.
— Press the “P” button @) on the selector lever.
— The “P” next to the selector lever will light up.
“P” engages automatically if you switch the en-
gine off while the “D” or “R” gear is selected. If
you switch the engine off in “N”, “P” will engage
automatically after approximately 30 minutes.
If you want to switch from “P” to “D” or “R”, the
engine must be running.
If you cannot shift out of “P”, for example be-
cause the vehicle has no power, you may need to
use the emergency release for the parking lock
=> page 100.
Selecting a driving program
Various driving programs can be selected when in
the “D” gear. The programs influence when the
transmission shifts and how the accelerator ped-
al responds.
The selected driving program is displayed in the
instrument cluster.
—D (Drive): normal driving mode
— S (Sport): sporty driving mode
If you select the Dynamic mode in Audi drive se-
lect*, the “S” driving program will be activated.
When the ignition is switched off, the driving pro-
gram may be reset to “D”.
98
To switch between the current driving program
and “S”, push the selector lever toward the rear.

ZA WARNING
— Before you start driving, check if the label
for the desired selector lever position next
to the selector lever is lit up.
— Secure the vehicle against rolling before ex-
iting the vehicle > page 96.
— Power is still transmitted to the wheels
when the engine is running at idle. To pre-
vent the vehicle from “creeping”, you must
keep your foot on the brake in all selector
lever positions (except "P" and "N") when
the engine is running.
— To reduce the risk of an accident, do not
press the accelerator pedal when changing
gears if the vehicle is stationary and the en-
gine is running.
— Never select the “R" or "P” gears while driv-
ing. Doing so could cause an accident.
— The vehicle can roll even if the ignition is
switched off.

@) Tips
If you shift between “D” and “R” within one
second, you do not need to press the brake
pedal. This makes it possible to “rock” if it is
stuck, for example.

Driving

ient and environmentally-friendly

9g
Your driving style greatly influences the amount
of fuel and energy consumed, the environmental
impact, and the wear on the engine, brakes, and
tires. Note the following information for efficient
and environmentally-conscious driving:
— Turn off electrical equipment that is not need-
ed, for example seat heating*.
— Anticipate upcoming traffic situations while
driving to avoid unnecessary acceleration and
braking.
— Avoid driving at high speeds.
— Avoid adding extra weight to the vehicle if pos-
sible, for example by not leaving roof racks or
bike racks installed when they are not needed.
— Make sure the tire pressure is correct.
— Have maintenance performed regularly on the
vehicle.
— Do not let the engine run while the vehicle
parked.
— Do not drive with winter tires during the summ-
er.
— Use the Start/Stop system.
— Utilize the engine braking effect.
— Avoid driving short distances when possible.
@® Tips
The amount of noise produced by the vehicle
can increase significantly when driving with a
sporty style. Show respect to others around
you and the environment with the way you op-
erate your vehicle, especially at night.
ME ey
Your vehicle is equipped with an intelligent ener-
gy management system for distributing electrici-
ty. This significantly improves the starting ability
and increases the vehicle battery life.
@) Tips
— If you drive short distances frequently, the
vehicle battery may not charge enough
while driving. As a result, convenience func-
tions for electrical equipment may be tem-
porarily unavailable.
102
— The vehicle battery will gradually drain if
the vehicle is not driven for long periods of
time, or if electrical equipment is used
when the engine is not running. To ensure
that the vehicle can still be started, the
electrical equipment will be limited or
switched off.
I Cr Te (1
B Drive system: malfunction! Safely stop vehi-
cle
There is a malfunction in the drive system. The
brake
booster and the power steering may stop
working. Stop the vehicle immediately or as soon
as possible and do not continue driving. Secure
the vehicle against rolling before exiting the vehi-
cle > page 96. Have the problem corrected by an
authorized Audi dealer or authorized Audi Service
Facility.
B Drive system: malfunction! Please contact
Service
There is a malfunction in the drive system. Drive
slowly to an authorized Audi dealer or authorized
Audi Service Facility to have the malfunction cor-
rected.
Start/Stop system
Applies to: vehicles with Start/Stop system
The Start/Stop system can help increase fuel
economy and reduce CO2 emissions.
In Start/Stop mode, the engine shuts off auto-
matically when stopped, for example at a traffic
light. If certain conditions are met, the engine
may stop before the vehicle has come to a com-
plete stop. If you press the accelerator pedal
when this happens, the engine will start and driv-
ing power will be transmitted.
The ignition and important assist systems such
as the brake booster will remain available during
the Stop phase. The engine will restart automati-
cally when needed.
The Start/Stop system is automatically activated
once the ignition is switched on.