2021 AUDI A4 mirror

Lights and Vision
Calibrating the compass
Applies to: vehicles with digital compass
If the display is incorrect or inaccurate, the com-
pass must be recalibrated.
> Press and hold the button @ until aC
=> page 61, fig. 54 appears in the rearview mir-
ror.
> Drive in a circle at about 6 mph (10 km/h) until
a direction is displayed in the rearview mirror.

To reduce the risk to yourself and other driv-
ers, calibrate the compass in an area where
there is no traffic.

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8W1012721BC
Sitting correctly and safely

Sitting correctly and
safely
Correct passenger
seating position
General information
As the driver, you are responsible for making sure
every passenger is sitting correctly in their seat
and maintaining this seating position while driv-
ing. Make sure that:
— Every passenger in the vehicle has adjusted his
or her seat correctly > page 63
— The steering wheel is adjusted correctly
=> page 66
— The mirrors are adjusted so that there is a suffi-
cient view of the area around the vehicle
=>page 55
— Every passenger in the vehicle has his or her
head restraint adjusted correctly > page 67
— Every passenger in the vehicle has his or her
safety belt fastened correctly > page 68
— The activation status of the front passenger's
airbag is suitable for the passenger in the front
passenger's seat > page 74
— Children are secured in suitable child safety
seats that are secured to appropriate vehicle
seats > page 76. Read and observe the impor-
tant safety information pertaining to the use of
child safety seats on the front passenger's seat
=> A\ in General information on page 76.
Examples of incorrect seating positions
Safety belts can only provide its optimal protec-
tion when they are routed correctly. Incorrect
seating positions significantly reduce the protec-
tive functions of the safety belts and increase the
risk of injury due to incorrect belt routing.
The following list includes examples of seating
positions that could be dangerous for all vehicle
occupants. This is not a complete list. The pur-
pose is to provide examples to increase your
awareness of the topic. The following points ap-
ply when the vehicle is in motion:
— Never stand inside the vehicle.
— Never stand on the seats.
— Never kneel on the seats.
— Never tilt your backrest too far back.
— Never lean against the instrument panel.
— Never lie down on the rear bench seat.
— Never sit only on the front section of the seat.
— Never sit sideways on the seat.
— Never lean against the window.
— Never place your feet out of the window.
— Never place your feet on the instrument panel.
— Never place your feet on the seat cushion.
— Never ride in the footwell.
— Never sit on the armrests.
— Never drive or ride in a seat without fastening
your safety belt.
— Never ride in the luggage compartment.

ZA WARNING
Incorrect seating positions, failure to wear a
safety belt, or being too close to an airbag in-
crease the risk of serious or fatal injury to ve-
hicle occupants, especially if the airbags de-
ploy and come into contact with occupants
who are not seated correctly. Note the impor-
tant information and warnings in the chapters
for the topics given above.
Gi) Tips
If you or other vehicle passengers have physi-
cal limitations that prevent sitting in a correct
position, modifications to the vehicle may be
necessary. For more information, contact an
authorized Audi dealer or authorized Audi
Service Facility, or call Audi customer support
at 1-800-822-2834.


Front seats
General information
Make sure that:
— You can press the pedals down completely
while your legs are slightly bent
— The distance between your upper body and the
steering wheel or instrument panel is at least
10 inches (25 cm)
— The distance between your knees and the in-
strument panel is at least 4 inches (10 cm)
63
>

8W1012721BC
Sitting correctly and safely

Safety belt retractor
The safety belts are equipped with an automatic
belt retractor. This automatic retractor allows the
safety belt to be pulled all the way out when the
belt is pulled slowly. However, the automatic re-
tractor locks during sudden braking maneuvers.
It also locks the belts when accelerating, driving
uphill, and driving around curves.
Belt force limiter
Safety belts with belt force limiters reduce the
force placed on the body by the safety belts dur-
ing a collision.
Safety belt pretensioners
In certain driving situations, safety belts may be
tightened with reversible belt tensioners when
you start driving. If the safety belt is too loose, it
will be tightened so that the belt will rest closer
to the body.
In some collisions, pyrotechnic belt tensioners
may secure the safety belts so that they cannot
loosen. This reduces forward movement by the
vehicle passengers.
Depending on vehicle equipment, some settings
such as the driver’s seat and exterior mirror posi-
tion can be stored.
Storing and recalling a seat profile
Applies to: vehicles with memory function
The memory function buttons are located in the
door trim panel.
Storing a seat profile

> Press the [SET] button. If the LED in the button
turns on, a seat profile can be stored.
> Push one of the numbered memory buttons. A
tone confirms that the settings were stored.

Recalling a seat profile
> When the a door is open and the ignition is
switched off, press the memory button once
briefly. The seat will be fully adjusted to the
settings in the seat profile.
> If the door is closed or the ignition is switched
on, press and hold the memory button until the
seat is fully adjusted to the settings in the seat
profile.

ZA\ WARNING
The pyrotechnic system can only provide pro-
tection during one collision. If the pyrotechnic
belt tensioners deploy, the pretensioning sys-
tem must be replaced by an authorized Audi

dealer or authorized Audi Service Facility.

@) Tips
Smoke may be released when pyrotechnic belt
tensioners deploy. This is not a sign of a vehi-
cle fire.
Memory function
General information
Applies to: vehicles with memory function
With the memory function, you can save and call
up seat profiles using the memory buttons in the
door trim panel.
Z\ WARNING
—To reduce the risk of an accident, the seat
setting can only be recalled when the vehicle
is stationary.
— In an emergency, the recall process can be
canceled by pressing the seat adjustment
button on that seat.

Airbag system
Z\ WARNING
— If you have not fastened your safety belt,
you are in an incorrect seating position, or
you are too close to the airbag system, the
airbag system will not be able to protect
you. This increases the risk of serious or fa-
tal
injuries. Make sure that every vehicle
passenger has their safety belt correctly fas-
tened and is sitting in a correct seating posi-
tion > page 63. This is necessary regardless |>


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8W1012721BC
Trailer towing

Trailer towing
Driving with a trailer
eT e e eeu)
Your vehicle is primarily intended for transport-
ing people and luggage. However, if you drive
with a trailer, follow the technical requirements,
the operation and driving tips, and the legal reg-
ulations.
Driving with a trailer affects the vehicle's energy
usage, performance, and wear. It also requires
higher concentration from the driver.

Z\ WARNING
Do not transport any people in a trailer due to
the risk of fatal injury.
Technical requirements
Trailer hitch

Only use a trailer hitch with a removable ball
hitch mount and ball hitch. The trailer hitch must
be permitted for the vehicle, the trailer and the
permitted total weight of the trailer being
pulled. Above all, it must be securely and safely
attached to the vehicle trailer.
Never mount a trailer hitch on the bumper. The
trailer hitch must be mounted in a way that does
not impair the function of the bumper. Do not
make any changes to the exhaust system and the
brake system.
Check regularly if the trailer hitch is securely
mounted. Always follow the instructions given by
the trailer hitch manufacturer.
Trailer brakes
If the trailer has its own brake system, then fol-
low the manufacturer specifications. However,
the brake system on the trailer must never be
connected to the vehicle brake system.
Engine cooling system
Driving with a trailer means a higher load on the
engine and the cooling system. The cooling sys-
tem must be designed for additional load and
contain enough coolant > @®.
CG) Note
Longer inclines cannot be driven without a
suitable cooling system, especially if the out-
side temperatures are high. Otherwise, this
increases the risk of engine damage.
Operating instructions
Towing capacity
Your vehicle can only be operated with class 1 or
class 2 trailers.
Load distribution
Poor cargo load and distribution can negatively
impact vehicle handling. Load the trailer based
on the following criteria as much as possible:
— Store objects in the vehicle luggage compart-
ment, if possible. The vehicle should always
carry the heaviest possible load and the trailer
should have the lightest possible load.
— Distribute the load in the trailer so that the
heavy objects are as close to the axle as possi-
ble.
— Secure objects so that they do not slide.
— Utilize the maximum permitted tongue weight
if possible.
Tires
Set the tire pressure on your vehicle for a “full
load”; see the tire pressure sticker > page 245. If
necessary, also adjust the tire pressure on the
trailer according to the manufacturer's specifica-
tions.
The trailer and the vehicle should be equipped
with winter tires when driving in winter tempera-
tures.
Outside mirrors
If you cannot see the traffic behind the trailer
with the standard exterior mirrors, then you
must attach additional exterior mirrors. Adjust
them so you have a sufficient visibility behind
you.
Exterior lighting
Follow the legal regulations for lighting on your
trailer that are applicable in the country where
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>

8W1012721BC
Assist systems



surroundings directly and do not become dis-
tracted.

() Note
— Obstacles may disappear from the measure-
ment range when approaching them, even if
they were already detected.
—Insome situations, the ability of the sen-
sors and cameras to detect and display cer-
tain objects may be limited.
— Objects located above the coverage area,
such as bumpers on parked cars, garage
doors that are partially open, or objects
that are hanging
— Low obstacles
— Narrow objects, such as barrier chains, fo-
liage, poles, or fences
— Projecting objects, such as trailer draw
bars
— Objects with certain surfaces and struc-
tures,
such as fabric
@) Tips
— The sensors and cameras and the areas
around them must not be obstructed be-
cause this can impair the function of the
systems that depend on them. Make sure
that the sensors and cameras are free of
snow, ice, and other deposits. Do not use
any accessories, stickers, or other objects
that extend into the range of the sensors
and cameras.
— On vehicles that have factory-installed li-
cense plate brackets on the front of the ve-
hicle, the brackets may only be replaced
with ones that are the same size and made
of the same material. Do not install any li-
cense plate brackets on the front of vehicles
that do not have factory-installed brackets.
Otherwise, the function of the system could
be impaired.
— The function of the sensors and cameras
may be limited when light and visibility con-
ditions are poor, for example when driving
into
a tunnel, when there is glare, or when
there are reflective objects.
— External ultrasonic sensors, such as those in
other vehicles, can interfere with the sen-
sors.
— The coverage areas of the sensors > fig. 99
and cameras > fig. 100 are diagrams and do
not represent a true-to-scale image of the
sensor ranges.
— The system complies with United States FCC
regulations and ISED regulations
=> page 284.
Locations of the sensors and cameras


[RAZ-0820

Fig. 101 Front area: sensors and cameras





Fig. 102 Rear area: sensors and cameras
Front area
Depending on the vehicle equipment, the follow-
ing sensors and cameras may be installed:
— Camera behind the windshield
— Peripheral cameras on the exterior mirrors
— Front peripheral camera in the radiator grille
— Front and side ultrasonic sensors
— Front radar sensors at the corners of the bump-
er >
119

8W1012721BC
Driving information

> To start timing a new lap after driving a lap, se-
lect New lap in the menu. This starts timing
the next lap at the same time.
After completing a lap, the difference between
the last lap and the previous best lap time will be
won an indicated with a “~” or “+”.
Pausing timing and displaying a split time
> To insert a pause @ select Pause in the menu.
> To resume timing, select Resume in the menu.
> To display a split time, select Split time in the
menu. The split time appears for approxi-
mately ten seconds in the instrument cluster.
The current lap timing will continue running.
Canceling lap timing
The timing of the current lap will stop. The lap
time will be erased and will not be included in the
statistics.
> Select Cancel lap in the menu.
Resetting the time
> Select Reset lap times in the menu.
G) Tips
— A maximum of 99 lap times can be meas-
ured.
— If timing is paused, you can continue it later
even if you switch the ignition off.
— Saved lap times cannot be individually de-
leted from the total results.
— The saved lap timer values will remain after
switching the ignition off.
yo e-) a(t)
Applies to: vehicles with lap timer
Displaying lap statistics

You can display the number of laps driven
the fastest lap “+”, the slowest lap “-”, and the
average time “®” in the instrument cluster.
> Select in the instrument cluster: Vehicle func-
tions tab > E] button > Lap statistics.
> Turn the thumbwheel down or up to display the
individual lap times.
> To return to the lap timing that was started, se-
lect the [I button > Lap times.
Resetting lap statistics
Requirement: the lap statistics menu must be
displayed.
> To reset the lap statistics, press and hold the
left thumbwheel until the message No lap
times have been recorded yet. appears.
@) Tips
The lap statistics list the lap times for the last
30 laps. The fastest and slowest lap times out
of up to 99 measured laps are also displayed.
Integrated Toll Module
Applies to: vehicles with Integrated Toll Module
Depending on the region, you can pay toll fees in
certain countries using the Integrated Toll Mod-
ule (ITM). It replaces a separate transponder for
detecting toll fees. The system electronics are in-
tegrated in the rearview mirror housing.
To use the ITM in toll zones, you must register
and activate it.
Registration
> Applies to MMI: Select on the home screen: VE-
HICLE > Settings & Service > Vehicle informa-
tion Toll module.
> Note the Integrated Toll Module ID.
> To register the ITM, go to the displayed web ad-
dress and follow the instructions.
Activation
> To activate the ITM, press CD in the MMI.
Entering the number of passengers
Depending on the number of passengers and the
region, a lower toll fee may be charged. You must
either enter the number of passengers or deacti-
vate the ITM based on the laws applicable in the
area where you are driving.
> To enter the number of passengers, select the
appropriate button in the MMI.
> To deactivate the ITM, press @ in the MMI.
125
>

Driving information

@ Tips
— The driver is responsible for specifying the
correct number of passengers and activat-
ing or deactivating the ITM.
— Malfunctions can occur when detecting tolls
if both the ITM and transponder are activat-
ed. Deactivate the system not being used or
remove it as necessary.
— Ifa rearview mirror is replaced, you must
register the new ITM and remove the old
ITM from the account.
— The system complies with United States FCC
regulations and ISED regulations
> page 284.
Display
Applies to: vehicles with Integrated Toll Module
The selected number of passengers is displayed
in the MMI status bar > page 22.
The i symbol in the status bar and a notifica-
tion in the MMI will indicate if there is a faulty
connection between the ITM and the MMI or if
the ITM is faulty. If the connection interference
continues or the ITM is faulty, drive immediately
to an authorized Audi dealer or authorized Audi
Service Facility.
126

8W1012721BC
Driver assistance

Side assist
Description
Applies to: vehicles with side assist

:



Fig. 120 Driving situations and exterior mirror display
General information
Side assist monitors the blind spot and traffic be-
hind your vehicle and provides assistance when
you are changing lanes. If the system detects an
object approaching and classifies it as critical, the
display @ in the exterior mirror on that side of
the vehicle will turn on,
Driving situations
The side assist warning is active at speeds above
approximately 9 mph (15 km/h) and can help in
situations such as the following:
@ Your vehicle is being passed. The faster an-
other vehicle approaches from behind, the
sooner the display in the outside mirror will
turn on.
@® There are vehicles traveling in the same direc-
tion as you in a lane adjacent to yours. The
display in the exterior mirror will turn on
when the detected object is in the “blind
spot”, at the latest.
@® You are slowly passing another vehicle. If the
difference in speed between the two vehicles
is less than 9 mph (15 km/h), the display in
the exterior mirror will turn on.
Information stage
If you do not activate a turn signal, the system
will inform you about objects classified as critical
by turning on the display in the respective exteri-
or mirror. The display remains dim in the infor-
mation stage so that you are not distracted while
looking forward.
Warning stage
Once you activate a turn signal, the system will
inform you about objects classified as critical by
turning on the display in the respective exterior
mirror.
Depending on vehicle equipment, the display
may also provide a warning when the turn signal
is not activated: if driver assist systems detect
that your vehicle is about to leave a lane, the dis-
play will blink to warn you about objects classi-
fied as critical. You can also be warned with cor-
rective steering > page 141, Audi active lane as-
sist/lane departure warning.
System limitations
The system uses the data from the radar sensors
at the rear corners of the vehicle > page 119,
fig. 102. They are designed to detect the left and
right adjacent lanes when the road lanes are the
normal width. In some situations, the system
may react to vehicles in your own lane or lanes
that are not directly adjacent to yours, or to ob-
jects on the side of the road. In this case, the dis-
play will turn on even though there is no vehicle
in the critical area. These situations may include:
— Driving on the edge of your own lane
— Narrow lanes
— Curves
— High barriers on the side of the road

ZA WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117. >

147