2020 AUDI A4 Drive belt

8W1012721BB
Sitting correctly and safely


ZA\ WARNING
Have the malfunction in the safety systems in-
spected immediately. Otherwise, there is a

Pye foyaCoy a)

risk that the systems may not activate during
an accident, which increases the risk of seri-
ous or fatal injury.



Fig. 68 Airbag overview image (enlarged section: deployed airbags)
The locations of the airbags are labeled with
“AIRBAG”. The following airbags are installed in
your vehicle:
Driver's airbag
Front passenger's airbag
Front side airbags and rear, if applicable
Head curtain airbag with ejection mitigation
OOOO Knee airbags
Airbags offer the best possible protection in your
vehicle during an accident when they are used to-
gether with safety belts that are fastened cor-
rectly, and when passengers are sitting in the cor-
rect seating position. Airbags are a supplementa-
ry restraint system and do not replace safety
belts.

RAZ-0239

Airbags may deploy during front-impact, side-im-
pact, or rollover accidents.
The deployment area for the airbag system can-
not be defined for every situation, since the cir-
cumstances surrounding accidents can vary wide-
ly. Factors that play an important role include the
condition of the object that the vehicle hits (hard
or soft), the angle of impact, vehicle speed, etc.
The deciding factor for the deployment of the air-
bag system is the deceleration that occurs during
an accident. Sensors in the vehicle are designed
to detect the severity of an accident in conjunc-
tion with the control module, and to provide a
targeted and timely deployment of the restraint
system. If the vehicle deceleration that is meas-
ured during an accident is below the specified
reference values in the control module, then the
airbags will not deploy, even though the vehicle >
69

8W1012721BB
Sitting correctly and safely

occupant detection sensor measures the electri-
cal capacity on the front passenger’s seat. The
passenger's airbag is activated or deactivated de-
pending on the electrical capacity that is meas-
ured.
The passenger's airbag is activated if:
— The electrical capacity is higher than the
threshold stored in the control module
— The electrical capacity is the same as or greater
than the electrical capacity of a typical adult
The passenger's airbag is deactivated if:
— The electrical capacity is lower than the thresh-
old stored in the control module
— The electrical capacity is the same as or less
than the electrical capacity of a typical one-
year-old child in a child safety seat that has
been used for certification in accordance with
FMVSS 208
If the front passenger's airbag is activated, the
PASSENGER AIR BAG ON @ indicator light
will turn on. If the front passenger's airbag is de-
activated, the PASSENGER AIR BAG OFF #;
indicator light will turn on.
The deployment force of the front airbags adapts
based on whether or not the safety belt is used
and the distance between the seat and the steer-
ing wheel/instrument panel. For example, if a
person is too close to the front airbag, the front
airbag will deploy with less force to help reduce
the risk of injury.
Meaning of PASSENGER AIR BAG OFF 3; ON
® indicator light
When the ignition is switched on, the system de-
tects whether the front passenger's seat is occu-
pied. PASSENGER AIR BAG OFF #;, ON @
will turn on for several seconds during this proc-
ess. Then it will indicate whether the front pas-
senger's airbag is activated or deactivated.
— PASSENGER AIR BAG OFF 8¥;: the front
passenger's airbag is deactivated and will not
deploy in the event of an accident.
— PASSENGER AIR BAG ON @®: the front pas-
senger's airbag is activated and could deploy in
the event of an accident.
If a change to the occupancy status of the front
passenger's seat is detected,
PASSENGER AIR BAG OFF #, ON @ will
flash for several seconds and will then display the
status of the front passenger's airbag.
Always make sure the indicator light corresponds
to the occupancy of the front passenger's seat.
— An adult or individual of similar size in the
front passenger's seat: the front passenger's
airbag must be activated, so
PASSENGER AIR BAG ON ® must remain
on.
— An individual of smaller size (for example, an
adolescent or small adult) in the front pas-
senger's seat: the front passenger's airbag
must be activated, so
PASSENGER AIR BAG ON @ must remain
on.
— Child in a child safety seat on the front pas-
senger's seat: the front passenger's airbag
must be deactivated, so
PASSENGER AIR BAG OFF #%; must remain
on.
— Front passenger's seat not occupied: the front
passenger's airbag must be deactivated, so
PASSENGER AIR BAG OFF ®, must remain
on.

ZA\ WARNING
— An adult or a person with a small stature
(such as a young person or small adult) seat-
ed on the front passenger's seat will not be
protected by the passenger's airbag in the
event of a collision if the passenger's airbag
is deactivated. This increases the risk of in-
jury and death. Always make sure that
PASSENGER AIR BAG ON ® remains on
while driving. If
PASSENGER AIR BAG ON @ does not
turn on, make sure the front passenger is
sitting correctly in the seat > page 59 and
that there are no objects covering the front
passenger's seat (such as blankets or pil-
lows). If PASSENGER AIR BAG ON ®
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

71

Sitting correctly and safely



Facility and have the airbag system inspect-
ed.
—Achild ina child safety seat on the front
passenger's seat - especially in a rear-facing
child safety seat - can receive a severe im-
pact if the front passenger's airbag deploys,
which increases the risk of serious or fatal
injury. Always secure child safety seats on
the rear seats. If special circumstances re-
quire the use of a child safety seat on the
front passenger's seat, always make sure
that PASSENGER AIR BAG OFF 3%; re-
mains on while driving. If
PASSENGER AIR BAG OFF #, does not
turn on, remove the child safety seat and in-
stall it again according to the child safety
seat manufacturer instructions. If
PASSENGER AIR BAG OFF &%; still does
not turn on, the front passenger's seat must
not be used. Drive to an authorized Audi
dealer or authorized Audi Service Facility
and have the airbag system inspected.
Fluids, electronic devices, or mechanical
damage on the front passenger's seat may
cause the front passenger seat occupant de-
tection to malfunction. The system may
then incorrectly detect if the front passeng-
er's seat is occupied. As a result, it could de-
ploy the front passenger’s airbag incorrectly
or fail to deploy it, which increases the risk
of serious or fatal injury. Make sure that no
wet objects (such as a wet hand towel) and
no fluids come into contact with the front
passenger's seat cushion. If the front pas-
senger's seat becomes wet, dry it immedi-
ately. Make sure no electronic devices (such
as a laptop or a retrofitted seat heater) are
on the front passenger's seat. Do not trans-
port any objects on or under the front pas-
senger's seat.
Seat covers or protective covers may prevent
the advanced airbag system from correctly
detecting child safety seats or passengers in
the front passenger's seat. You must not use
seat covers or protective covers on the front
passenger's seat that are not specifically ap-
proved for use on Audi seats with an ad-
vanced airbag system.

72
Child safety seats
General information
When installing and using child safety seats, fol-
low the information in this Owner's Manual, the
applicable state and federal regulations, and the
manufacturer instructions for the child safety
seat.
You can also obtain useful and current informa-
tion from the following sources:
U.S. National Highway Traffic Safety Adminis-
tration
http://www.nhtsa.gov
http://www.safercar.gov
National SAFE KIDS Campaign
http://www.safekids.org
SafetyBeltSafe U.S.A.
http://www.carseat.org
Transport Canada Information Centre
http://www.tc.gc.ca/roadsafety
Audi Customer Experience Center
https://www.audiusa.com/help/contact-us
https://www.audi.ca/ca/web/en/models/layer/
contact.html

ZA WARNING
To reduce the risk of serious or fatal injuries,
children must always be secured in the vehicle
with a child safety seat that is appropriate for
their body size, weight, and age.
— Children ages 12 and under must be trans-
ported using the appropriate child safety
seat. Note differences in regulations be-
tween states and countries.
— Child safety seats secured incorrectly in the
vehicle may cause serious or fatal injuries in
the event of an accident. Always secure the
child safety seat according to the manufac-
turer instructions.
— Children or babies must not under any cir-
cumstances be held on the lap of the driver
or other passengers while driving.
— Do not secure more than one child in a child
safety seat.

8W1012721BB
Sitting correctly and safely



— Never allow a child to sit in a child safety
seat unsupervised.
— Never allow children to ride unsecured in the
vehicle or to stand or kneel on the seats
while driving. In the event of an accident, a
child could be propelled through the vehicle.
This can cause serious or fatal injuries for
the child and passengers.
— If children use an incorrect seating position
while driving, they have a higher risk of in-
jury 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 63. 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 #; remains

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 2; 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.
(eyicram Ledisi mi lmaalicu)
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 thanin D>
73

Driving

Driving
Starting the vehicle
eta
Applies to: vehicles with convenience key



Fig. 98 Center console: starting the engine
Requirement: the key must be in the vehicle.
Starting the engine
> Press and hold the brake pedal.
> Press the [START ENGINE STOP] button. The
engine will start.



Equipment that uses a lot of electricity is switch-
ed off temporarily when you start the engine. If
the engine does not start immediately, the start-
ing procedure stops automatically after a short
time. If this is the case, repeat the starting pro-
cedure after approximately 30 seconds.
Stopping the engine
> Bring the vehicle to a full stop.
> Press the [START ENGINE STOP] button. The
engine will switch off.



Applies to: vehicles with steering lock: The steer-
ing is locked when you turn off the engine and
open the driver's door. The steering lock helps
prevent vehicle theft. “P” must be engaged on
vehicles with an automatic transmission.
Stopping the engine in an emergency
If necessary in an emergency, the engine can also
be stopped while driving using the emergency off
function*.

> Press the [START ENGINE STOP] button twice in
a row or press and hold it one time.

92
Switching on and off
If you would like to switch the ignition on or off
without starting the engine, follow these steps:

> Press the [START ENGINE STOP] button without
pressing the brake pedal.

Switching the ignition off automatically
To prevent the vehicle battery from draining, the
ignition and possibly the exterior lighting may
switch off automatically.
Requirements:
— The Start/Stop system must have stopped the
engine.
— You must have left the vehicle for longer than
30 seconds.
— The ignition must be switched on.
Among other indicators, the system detects that
you have left the vehicle based on the following
factors:
— The driver's door has been opened.
— The driver's safety belt has been unbuckled.
— The brake pedal is not being pressed.
The ignition will also be switched off after 30 mi-
nutes or if you lock the vehicle from the outside.

ZA\ WARNING
—To reduce the risk of asphyxiation, never al-
low the engine to run in confined spaces.
— Never turn off the engine before the vehicle
has come to a complete stop. Switching it
off before the vehicle has stopped may im-
pair the function of the brake booster and
power steering. You would then need to use
more force to steer and brake the vehicle.
The fact that you cannot steer and brake as
usual may increase the risk of accidents and
serious
injuries.
— Always select the “P” selector lever position
when parking the vehicle; otherwise, the ve-
hicle could roll away.

@) Note
— Avoid high engine speed, full throttle, and
heavy engine load if the engine has not

Driving


— 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).

94
Gears and driving programs
@Q—
2)—*

RAZ-0410]|
i


R
t
N
tt.
D/S
Fig. 99 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)
—N (Neutral)
—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.
“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.

Driving

Switching the Start/Stop system off and on
The & button is located above the selector lever
in the center console. The LED in the button turns
on when the function is switched off.
> Press & to switch on or off.
If you switch the system off during a Stop phase,
the engine will start again automatically.
Basic requirements
—The driver's door and hood must be closed.
—"P","N", or "D" must be engaged.
— The steering wheel must not be turned far in ei-
ther direction.
— The vehicle must have driven faster than 2 mph
(3 km/h) since the last time it stopped.
— The vehicle is not in trailer mode.
@) Note
Always switch the Start/Stop system off when
driving through water > page 100.
G) Tips
— Depending on the driving situation, the en-
gine may already stop when coasting before
the vehicle has come to a complete stop )).
— If you select the "D" position after shifting
into reverse, the vehicle must be driven fast-
er than 6 mph (10 km/h) in order for the
Start/Stop system to become active again.
This makes it possible to maneuver without
stopping the engine.
Stopping and starting the engine
Applies to: vehicles with Start/Stop system
> Press and hold the brake pedal until the vehicle
has stopped. The @ indicator light appears in
the instrument cluster once the engine stops
automatically.
> The engine starts again when you remove your
foot from the brake pedal. The indicator light
turns off.

D_ In certain countries.
100
G) Tips
— Press the brake pedal during a Stop phase
to keep the vehicle from rolling.
— The ignition will turn off if you press the
START ENGINE STOP] button during a Stop
phase.
— If you leave the vehicle briefly during a Stop
phase, the driver's door must be closed and
the safety belt buckled for the engine to be
able to restart.


— You can control if the engine will stop or not
by reducing or increasing the amount of
force you use to press the brake pedal. For
example, if you only lightly press on the
brake pedal in stop-and-go traffic or when
turning, the engine will not switch off when
the vehicle is stationary. If you press the
brake pedal harder, the engine will switch
off.
Starting and stopping the engine automat-
ire] AY
Applies to: vehicles with Start/Stop system
The system checks if certain conditions are met
before and during the Stop phase, and deter-
mines if the engine stops and how long it re-
mains stopped. For example, if power usage is
high, the engine will not be stopped. Along with
other conditions, the following factors influence
the automatic engine start or stop:
— Environmental conditions (slopes, inclines, ele-
vation, temperature)
— Battery (charge status, temperature, power us-
age)
— Engine temperature
— Assist systems
— Driving behavior
Depending on the engine, the indicator light
may appear if the engine is not stopped.
Messages
Applies to: vehicles with Start/Stop system
Drive system: please start the vehicle manually >

8W1012721BB
Driving

manually or automatically when you start to
drive.
Setting and releasing the parking brake
> Setting: pull the ©) switch.
> ris appears, the parking brake is hold-
ing the vehicle. You can remove your foot from
the brake pedal.
> Releasing: when the ignition is switched on,
press and hold the brake pedal and press the ©)
button.
If the red indicator light flashes, the braking
force has not built up enough or it has decreased.
You can also secure the vehicle by selecting the
“P” gear or pressing the brake pedal. Make sure
the indicator light is off before you start driving.
Automatically releasing the parking brake
when starting to drive
Requirement: the driver's door must be closed
and the driver’s safety belt must be fastened.
> Press the accelerator pedal to start to drive.

ZA\ WARNING
—To reduce the risk of an accident, always
make sure the vehicle is situated safely
while stationary.
— If the parking brake is set, it can release au-
tomatically when the accelerator pedal is
pressed. To reduce the risk of an accident,
do not inadvertently press the accelerator
pedal and always shift into “P” when the ve-
hicle is stopped.
— If the power supply fails, you cannot set the
parking brake once it is released, or release
it if it is set. In this case, park the vehicle on
level ground and secure it by engaging the
"P” gear. Contact an authorized Audi dealer
or authorized Audi Service Facility for assis-

tance.

@) Tips
— On steep inclines, especially when in trailer
mode, the vehicle may roll backwards unin-
tentionally when starting to drive. To re-
duces the risk of this happening, pull and
hold the ©) switch while pressing the accel-
erator pedal. If enough drive power has
built up at the wheels and the vehicle does
not roll backwards, then release the switch
to start to drive.
— If you leave the vehicle when “D” or “R” are
engaged, the parking brake will be set auto-
matically.
— Noises when the parking brake is set and re-
leased are normal and are not a cause for
concern.
— The parking brake goes through a self-test
cycle at regular intervals when the vehicle is
stopped. Any noises associated with this are
normal.
Emergency braking function
Emergency braking should only be used in an
emergency, if the standard brake pedal is mal-
functioning or obstructed. When the emergency
braking function is activated, the braking effect is
similar to a heavy braking maneuver.
> Pull and hold the ©) switch while driving.
» An audio warning signal will sound and emer-
gency braking will begin.
> If you press the accelerator pedal, emergency
braking will be canceled.

ZA WARNING
Heavy braking while driving through curves or
in poor road or weather conditions can cause
the vehicle to slide or the rear of the vehicle to
swerve, which increases the risk of an acci-
dent.
Ea / @ Parking brake: malfunction! Safely
stop vehicle. See owner's manual
EG / @ Parking brake: malfunction! Please
release parking brake

If one of the two messages appears, there is a
malfunction in the parking brake. If the message
appears while stationary, check if the parking
brake is released and can be reset. If this is the
case,
switch the ignition off and back on.
103