engine AUDI S4 2021 Owner's Guide

Trailer towing

you are operating the vehicle. Contact an author-
ized Audi dealer or authorized Audi Service Facili-
ty for more information.
Before you start driving, check all lighting equip-
ment on the trailer while it is hitched to the vehi-
cle.
The headlight range control automatically ad-
justs the light range of the headlights.
Safety chains
Make sure the safety chains are correctly applied
when pulling a trailer. The chains should hang
enough so that the trailer can drive around
curves. However, they must not touch the
ground.
@) Note
Attachments retrofitted on the vehicle may
cause damage, especially on the trailer hitch
ball head. In cases of damage, have the func-
tion checked by an authorized Audi dealer or
authorized Audi Service Facility.
@ Tips
— Block the wheels with chocks when parking
on inclines if the trailer is loaded.
— Audi recommends having the vehicle in-
spected between the inspection intervals if
you tow a trailer frequently.
— Avoid driving with a trailer during the vehi-
cle break-in period.
Driving with a trailer
Driving with a trailer requires extra caution.
Speed
Adhere to the legal speed limits. Follow the legal
regulations that are applicable in the country
where you are operating the vehicle.
As the speed increases, the driving stability of
the trailer decreases. Therefore you should not
exceed the maximum legal speed limit when
there are unfavorable road, weather, and/or wind
conditions. This especially applies when driving
downhill.
116
Hill
When you start driving uphill or downhill, trailers
may tilt or sway sooner than when driving ona
level surface. If small swaying movements have
already occurred, you can stabilize the trailer by
firmly braking immediately. Never attempt to
“straighten out” the trailer by accelerating.
Downshift before driving on hills to utilize the en-
gine braking effect > A\.
Brakes
When using a trailer with overrun brakes, first
brake gently then quickly. This reduces the risk of
jerking while braking if the trailer wheels lock up.
Engine coolant temperature
Pay attention specifically to the coolant tempera-
ture display when there are high outside temper-
atures, and when driving on long inclines
=> page 14. Shift to a higher gear in a timely man-
ner.

Z\ WARNING
Constant braking causes the brakes to over-
heat and can substantially reduce braking per-
formance, increase braking distance, or cause
complete failure of the brake system.

8W1012721BC
Driver assistance

Driver assistance
Cruise control system
Applies to: vehicles with cruise control system
The cruise control system assists the driver in
maintaining a constant speed above approxi-
mately 15 mph (20 km/h). The system maintains
the desired speed by braking and accelerating.

ZA WARNING
— Always pay attention to the traffic around
your vehicle when the cruise control system
is in operation. As the driver, you are always
responsible for controlling your vehicle
speed and the distance between your vehicle
and
other vehicles.
— For safety reasons, cruise control should not
be used in the city, in stop-and-go traffic, on
winding roads, and when road conditions are
poor (such as ice, fog, gravel, heavy rain,
and conditions that could lead to hydroplan-
ing), because this increases the risk of an ac-
cident.
— Switch the cruise control off temporarily
when driving in turning lanes, highway exits,
or in construction zones.
—To reduce the risk of an accident, you should
only resume the stored speed if it is suitable
for the current traffic conditions.

() Note
Before driving downhill a long distance ona
steep hill, decrease your speed and select a
lower gear. This makes use of the engine brak-
ing effect and reduces the load placed on the
brakes.
@ Tips
The brake lights turn on when the brakes are
applied automatically.
Switching the system on
Applies to: vehicles with cruise control system

BFV-0220



Fig. 105 Operating lever: switching the system on
Requirement: the ignition must be switched on.
> To switch the system on, pull the lever toward
you to position ©.
The Gia or i$) indicator light and the corre-
sponding message will appear in the instrument
cluster.

ZA\ WARNING
If the brakes are malfunctioning (for example,
overheating) while the cruise control system
is switched on, the regulating functions may
shut off automatically.



estate Rem lad lite: Rag ena)
speed
Applies to: vehicles with cruise control system
When the vehicle is stationary, you can preselect
the cruise control speed or activate the speed
while driving.
Requirement: the system must be switched on.
> To preselect a cruise control speed when the ve-
hicle is stationary, tap the lever toward @)/G)
=> page 127, fig. 105.
> To activate the cruise control speed, pull the
lever
toward position @ while driving.
> To set the current driving speed as the cruise
control speed, press the button @) on the lever.
The active cruise control speed is indicated with
the Gg or kl indicator light in the instrument
cluster. >
127

Driver assistance


ZA\ WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
Operating Audi adaptive cruise control
Applies to: vehicles with Audi adaptive cruise control


RAZ-0096

B4M-0232



Fig. 110 Operating lever: changing the speed
Switching on
> To switch on the adaptive cruise control, pull
the lever up to position @ until it engages.
Storing the speed and activating regulation
If you have switched the system on, you can set
the current speed as the “regulated speed” and
activate regulation:

> Press the [SET] button (2). The set speed is indi-
cated with a marking in the speedometer (@)
=> page 131, fig. 107 and shown in the instru-
ment cluster > A\.
> To save the speed while the vehicle is station-
ary, also hold the brake pedal down.


D_ Analog instrument cluster: 20 mph (30 km/h)
2) Depends on the country and engine
132
You can set any speed between 15 mph
(20 km/h)» and the maximum possible speed
range @)?) > page 131, fig. 107.
Pausing cruise control
The control can be stopped at any time:
> While driving or when the vehicle is stationary:
Press the lever away from you in the direction
of the arrow. Or
» While driving: Press the brake pedal.
The Ba indicator light turns off.
Resuming regulation
The previously set speed can be resumed at any
time after a pause.
> To resume cruise control while driving, pull the
lever toward you in the direction of the arrow.
> To resume cruise control when stationary, pull
the lever toward you in the direction of the ar-
row while pressing the brake pedal.
Changing the speed
> To increase or decrease the set speed in smaller
increments, briefly tap the lever toward G) or
© to the first level.
> To increase or decrease the set speed in larger
increments, briefly tap the lever toward () or
© to the second level.
> To increase or decrease the set speed quickly,
hold the lever toward @) or () until the mark-
ing in the speedometer @) page 131, fig. 107
has reached the desired speed.
Applies to: vehicles with efficiency assist: Predic-
tive control can automatically adjust the set
speed based on traffic and road condi-
tions > page 133.
Preselecting a speed
You can also preselect the speed when adaptive
cruise control is not active by moving the lever in
the desired direction @)/@). Activate the previ-
ously selected speed by pulling the lever toward
you in the direction of the arrow.

Driver assistance

Requirement: adaptive cruise control must be
switched on.
Overriding control
You can completely override the control, for ex-
ample when passing or if you would like to accel-
erate more quickly.
> To accelerate manually, pull the lever toward
you in the direction of the arrow and hold it
there, or press the accelerator pedal.
> To resume the usual cruise control, release the
lever or remove your foot from the accelerator
pedal.
When you are in the Driver assistance display,
the message Overridden will appear.
Decreasing the distance
The function decreases the set distance and pro-
vides assistance, for example when merging
when a lane is ending.
> To further reduce the distance to the vehicle
ahead temporarily, pull the lever toward your-
self in the direction of the arrow and hold it in
that position.
> To resume the system control, release the lever.
The adaptive cruise control reduces the distance
and, if necessary, accelerates the vehicle above
the set speed. When you are in the Driver assis-
tance display, the message Overridden will ap-
pear.

ZX WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
— Resting your foot on the accelerator pedal
could override the cruise control. Braking in-
terventions and corrective actions by the
system may not occur.


)) Depending on the engine
136
Driving in stop-and-go traffi
Applies to: vehicles with Audi adaptive cruise control

Applies to: vehicles with safe start monitor
Fig. 113 Instrument cluster: safe start monitor
Stopping with adaptive cruise control
The adaptive cruise control system also assists
you in stop-and-go traffic!). Within the limits of
the system, your vehicle may brake and remain at
a stop if a vehicle driving ahead stops.
Starting to drive with adaptive cruise control
As long as the message a ready to drive and A
is displayed, your vehicle will begin driving when
the vehicle ahead starts to move > /\.
If you are stopped for several seconds, your vehi-
cle will no longer drive autonomously for safety
reasons, and the message will turn off.
> To extend B ready to drive mode for several
seconds or reactivate, pull the lever briefly to-
wards you in the direction of the arrow
=> page 135, fig. 112.
> To resume manual control of the vehicle, tap
the accelerator pedal.
Safe start monitor
Applies to: vehicles with safe start monitor
The vehicle can still start to drive even if certain
obstacles are detected when starting to drive
=> /\. If the surrounding area detection detects
an obstacle, you will be alerted to the danger by
the A indicator light.
If you are in the Driver assistance display, the
display @ © fig. 113 and the message Warning!
will also appear. An audio signal will also sound.
Your vehicle will drive more slowly when starting. >

Parking and maneuvering

Parking and
maneuvering
Introduction
Depending on the vehicle equipment, various
parking aids will help you when parking and ma-
neuvering.
Parking aid
The parking aid plus assists you while parking
using audio and visual signals to warn you about
objects detected in front of, behind, and next to*
the vehicle > page 150.
The rearview camera shows the area behind the
vehicle in the center display. The lines in the rear-
view camera image help you to park and maneu-
ver > page 152.
The peripheral cameras are an addition to the
rearview camera and help you to see various
areas around the vehicle while parking and ma-
neuvering > page 152.
The rear cross-traffic assist can warn you of ap-
proaching cross traffic when driving in reverse or
exiting a parking space > page 156.
Assisted parking
Park assist helps you to locate suitable parking
spaces and to park in them and exit them. Park
assist controls the steering movements when
parking in free parking spaces. The driver is still
responsible for accelerating, braking, and shift-
ing gears. The driver must always monitor the
area around the vehicle and supervise the parking
Procedure > page 157.
Settings options
You can adjust parking aid functions individually.
The adjustment options depend on the vehicle
equipment.
— Automatic activation > page 150
— Front and rear volume > page 151
— Entertainment fader > page 151.
— Clean rearview camera > page 153
— View > page 154
— Rear cross-traffic assist > page 156
150


ZA WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
@ Tips
Audi recommends practicing parking in a traf-
fic-free location or parking lot to become fa-
miliar with the systems. Practice parking in
good light and weather conditions.

Parking aid plus
Ne ELS EUR

Applies to: vehicles with parking aid plus
B8W-0164
Fig. 123 Center console: parking aid button
General information
The parking aid assists when parking and maneu-
vering by providing warnings about obstacles. If
the ultrasonic sensors on the vehicle > page 119
detect an obstacle, the system will provide audio
and visual warnings.
Activating and deactivating
Requirement: the vehicle speed must be under
approximately 6 mph (10 km/h).
> Press the P” button in the center console.
When activating, a brief tone will sound and
the LED in the button will turn on.
Automatic activation
> The system activates automatically when re-
verse gear is engaged while the engine is run-
ning. A brief tone will sound.
If Automatic activation is switched on in the
MMI and if the vehicle approaches an obstacle at >

8W1012721BC
Parking and maneuvering


ZA WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and

cameras > page 117.
Activating and deactivating
Applies to: vehicles with rearview camera/peripheral cameras

=
g
gz
= & a

Fig. 126 Center console: parking aid button
Activating and deactivating
> Press the P4 button in the center console.
When activating, a brief tone will sound and
the LED in the button will turn on. Or
> Press CJ in the center display if the visual dis-
tance indicator is shown > page 151, fig. 124.
The system can be activated at low speeds, such
when maneuvering.
Automatic activation
The system activates automatically when reverse
gear is engaged while the engine is running. A
brief tone will sound.
Automatic deactivation
The system will deactivate automatically once
the vehicle exceeds a certain speed while driving
forward.

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


(ead a)
Applies to: vehicles with rearview camera/peripheral cameras
Depending on vehicle equipment, you may be
able to manually initiate rear view camera clean-
ing.
> Move the window wiper lever S7 into the posi-
tion for cleaning the rear window © & page 58.

ZA\ WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
Applies to: vehicles with rearview camera/peripheral cameras


Fig. 127 Center display: aiming at a parking spot
When parking with the rearview camera or pe-
ripheral camera, the parking aid plus audio and
visual warnings* will also assist you > page 151.
Visual orientation lines
@ The orange orientation lines show the vehi-
cle's direction of travel >@. Turn the steer-
ing wheel until the orange orientation lines
align with the parking space.
@ You can use the horizontal blue markings to
help you estimate the distance to an obsta-
cle. Each marking represents approximately 3
feet (1 meter). The blue area represents an
extension of the vehicle's outline by approxi-
mately 16 feet (5 meters) to the rear.
@® You can recognize the rear bumper in the
lower display.
@ You should stop driving in reverse when the
red orientation line touches the edge of an
object, at the latest.
153

Parking and maneuvering

brakes or changing the direction. Park assist au-
tomatically steers the vehicle into the parking
space while the driver presses the pedals.
>» After stopping the vehicle briefly, make sure
the actual direction the vehicle is traveling
matches the direction indicated by the park as-
sist.
> Remove your hands from the steering wheel.
> Pay attention to the path of the vehicle. If the
traffic situation permits, accelerate carefully
> AX. The maximum parking speed is approxi-
mately 4 mph (7 km/h).
> Follow the visual instructions in the center dis-
play and the warning tones until the parking
process has ended.

ZX WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
— The park assist is an assist system. The driv-
er is still responsible for monitoring the ve-
hicle's surroundings and preventing colli-
sions when using the system.
— When using park assist to drive into or out
of a parking space, the steering wheel turns
quickly on its own. Reaching into the steer-
ing wheel spokes while this is happening can
result in injury.

tomatically steers the vehicle out of the parking
space while the driver presses the pedals.
> Start the engine.
> Press the Pe button in the center console.
> Wait until a message appears in the center dis-
play that specifies the direction of travel re-
quired to exit the parking space.
> Activate the turn signal on the desired side or,
depending on vehicle equipment, press that
side next to the vehicle in the center display.
» Make sure the actual direction the vehicle is
traveling matches the direction indicated by the
park assist.
> Remove your hands from the steering wheel.
> Pay attention to the path of the vehicle. If the
traffic situation permits, accelerate carefully
> AX. The maximum speed for exiting a parking
space is 3 mph (5 km/h).
> Follow the visual instructions in the display and
the warning tones until the vehicle has finished
exiting the parking space.
>» The process of exiting the parking space has
ended if additional corrective movements are
no longer necessary and the specified steering
wheel angle is sufficient to drive out of the
parking space. Resume control of the steering
wheel >@).


G) Tips
You can also cancel the driving direction set
by the system by shifting between a forward
gear and reverse gear. Based on the position
of the vehicle, the system then calculates the
additional steering and driving directions for
maneuvering.

Exiting parking spaces with park assist
Applies to: vehicles with park assist
If you parked the vehicle in a parallel parking
space, park assist can help you drive out of it.
In the center display, arrows and symbols on the
vehicle roof @) > page 158, fig. 133 indicate
what action is needed, such as applying the
brakes or changing the direction. Park assist au-
160
ZA WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
— The park assist is an assist system. The driv-
er is still responsible for monitoring the ve-
hicle's surroundings and preventing colli-
sions when using the system.
— When using park assist to drive into or out
of a parking space, the steering wheel turns
quickly on its own. Reaching into the steer-
ing wheel spokes while this is happening can
result in injury.

@) Note
Resume steering immediately after the last
corrective movement and the takeover
prompt, so that the specified steering wheel
angle is not recentered.

8W1012721BC
Parking and maneuvering

Interrupting the park assists
Applies to: vehicles with park assist
Park assist will be canceled automatically in the
following scenarios:
— You switch the system off.
— You start steering.
— The speed is too high.
— The time limit is exceeded.
— An obstacle is detected.
— ESC intervenes.
Resume control of the vehicle, end the parking
process manually, or:
—
You can resume the parking process in some sit-
uations. Press the Pe button in the center con-
sole.
— To continue exiting the parking space, switch
the engine off and on. Press the Pe button.

ZX WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
Messages
Applies to: vehicles with park assist
If the Be oe] or fd indicator light turns on, the
park assist is not available or was interrupted.

A message that indicates the cause and possible
solution may appear with some displays. The
weather conditions may be too poor or a sensor
may be covered. Clean the area in front of the
sensors > page 119 and try to turn on the sys-
tems again later.
If the malfunction remains, drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.
161

Telephone

Telephone
Introduction
Applies to: vehicles with telephone
You can operate various telephone functions easi-
ly through the MMI in your vehicle.
Depending on the country and the vehicle equip-
ment, the following options may be available:
— Connecting a cell phone with Bluetooth
— Using two telephones
— Using the Audi phone box

ZX WARNING
— Medical experts warn that mobile devices
can interfere with the function of pacemak-
ers. Always maintain a minimum distance of
about 7.9 inches (20 cm) between the mo-
bile device antennas and the pacemaker.
— Do not carry the mobile device in a pocket
directly over the pacemaker when the
phone is switched on.
— Switch the mobile device off immediately
if you suspect it may be interfering with
the pacemaker.
— Do not use the voice recognition system*
=> page 26 in emergencies because your
voice may change in stressful situations. The
system may take longer to dial the number
or may not be able to dial it at all. Dial the
emergency number manually.
— Switch your mobile device off in areas where
there is a risk of an explosion. These loca-
tions are not always clearly marked. This
may include gas stations, fuel and chemical
storage facilities or transport vehicles, or lo-
cations where fuel vapors (such as propane
or gasoline vapor in vehicles or buildings),
chemicals or large quantities of dust parti-
cles (such as flour, sawdust or metal) may
be present in the air. This also applies to all
other locations where you would normally
turn your vehicle engine off.
— The demands of traffic require your full at-
tention. Always read the chapter > page 19,
Traffic safety information.

162
@) Note
Read the information about Audi connect, and
be sure to note the connectivity costs section
=> page 173.
@) Tips
— The Bluetooth connection range is limited
to inside the vehicle.
—Aselection of supported Bluetooth devices
can be found in the database for tested mo-
bile devices at www.audi.com/bluetooth.
Setup
Connecting a mobile phone via Bluetooth
Applies to: vehicles with telephone
Requirement: the vehicle must be stationary and
the ignition must be switched on. The Bluetooth
settings must be open on your mobile device dur-
ing the connection setup. The mobile device to be
connected must not be actively connected to any
other Bluetooth device. The MMI must only be
connected to one mobile device.
> Enable the Bluetooth function and visibility on
the MMI = page 213 and the mobile phone.
> Applies to: MMI: Select on the home screen:
PHONE.
> Follow the system instructions. The available
Bluetooth devices will be displayed after sever-
al seconds.
> Press on the desired mobile device in the list of
displayed Bluetooth devices.
> To update the list, press OQ.
A PIN for a secure Bluetooth connection will be
generated.
> Confirm the PIN on your mobile device.
> Follow the system instructions.
> Pay attention to any other system prompts on
the MMI and on your cell phone.
After connecting successfully
The cell phone contacts are automatically loaded
in the MMI. This process can take several mi-
nutes, depending on the number of contacts.
Depending on your cell phone and the connection
type, you can use the following functions:

Navigation

To load destinations in the vehicle automatically,
Audi recommends logging into the vehicle with a
myAudi user > page 30.
myAudi navigation functions:
— You can send destinations and routes from the
myAudi app to the vehicle > page 184.
— Active route guidance in the myAudi app can be
continued in the MMI.
— Depending on the situation, it may be possible
to continue active route guidance from the MMI
in the myAudi app to continue navigating to the
destination after leaving the vehicle.
Entering a destination
Intelligent search for navigation
CEC
Applies to: vehicles with navigation system
Using the intelligent search, you can enter the
data for a navigation destination in any order all
at once (for example, 5th Avenue New York).
Likewise, you can search for points of interest,
contacts, previous destinations, or favorites in or-
der to navigate to the desired destination.
Opening a menu
> Applies to: MMI: Select on the home screen:
NAVIGATION > 2.
Intelligent search
> Enter one or more search terms into the input
field. See > page 23, Text input.
>» Press on the desired destination in the results
list. The Details menu will be displayed.
> Press Start. Route guidance will be activated
and the map will be displayed > page 185,
fig. 142.
Online Points of Interest
> Searching for points of interest: enter the
name of a POI.
> Select: a symbol for a POI category (such as
i >a POI, or

)) Audi provides access to services from third party provid-
ers. Permanent availability cannot be guaranteed, because
that depends on the third party provider.
182
> To display all categories and search for a POI,
select: |---| > a category (such as restaurants) >
a POI.
Change search area
Requirement: route guidance must be active.
>» Applies to: MMI: Select on the home screen:
NAVIGATION > &.
> To change the search area, press (a) / 29 /Pre-
peatedly until the desired search area is select-
ed.
Online search)
Applies to: vehicles with navigation system and online search
You can use the results from a search engine pro-
vider to find a navigation destination.
Requirement: the MMI must be connected to the
Internet > page 173, Audi connect.
> Applies to: MMI: Select on the home screen:
NAVIGATION > © >G.
> Enter one or more search terms into the input
field.
> The search engine provider shows suggestions
£ to narrow down the search.
> Press on suggestions until the desired destina-
tion appears in the results list. If necessary, use
one finger to swipe upward or downward until
the suggestions £ or destinations 9 appear.
> Press on the desired destination 9. The Details
menu will be displayed.
» Press Start.
Route guidance will be activated and the map will
be displayed > page 185, fig. 142.
G) Tips
— The MMI input suggestions depend on the
last navigated destinations.
— The navigation system always searches for
the fastest route. You can have alternative
routes displayed if necessary > page 187.
— If the destination cannot be found, it may
not be stored in the navigation database. >