brake light AUDI A8 2021 Owner's Manual

4N0012721BF
Driver assistance

— The system cannot react to stationary objects,
such as vehicles at the end of a traffic jam, es-
pecially when traveling at high speeds.
— The system has a limited ability to detect
vehicles that are a short distance ahead, off to
the side of your vehicle, or moving into your
lane.
— Objects that are difficult to detect, such as mo-
torcycles, vehicles with high ground clearance,
or vehicles with an overhanging load, may be
detected late or not detected at all.
— The system does not respond to people, ani-
mals, or objects that are crossing or approach-
ing from the opposite direction.

ZA\ WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.


Display overview
Applies to: vehicles with adaptive cruise assist
RAZ-0205,

Fig. 119 Instrument cluster: driver assistance display
Indicator lights and messages in the speedome-
ter @ - @ inform you about the driving situation
and the settings. In the Driver assistance display
@ - @, you can find more detailed information
about the system. The displays depend on the
country and equipment.
Display in the speedometer
The display in the speedometer is not available in
all layouts*.
@ Marking for the set speed
@ Current vehicle speed
@® Available speed range for adaptive cruise as-
sist (example)
Image in the Driver assistance display
The display only appears when the Driver assis-
tance display is open in the on-board computer
=> page 16.
Messages and settings
Your vehicle
Detected vehicle driving ahead
Messages and settings
Set target distance
If you fall below the set distance, the dis-
tance bars turn red from the bottom upward.
Lane departure warning availability
O®
©O©QOOO®
Availability of lane guidance for adaptive
cruise assist
Indicator lights
Ba - The speed/distance control is active. No
vehicles were detected ahead. The stored speed
is maintained.
aA - The speed/distance control is active. A vehi-
cle was detected ahead. The system controls the
speed and distance from the vehicle driving
ahead, and accelerates and brakes automatically.
A - The speed/distance control is active but the
vehicle is not ready to drive. A vehicle was de-
tected ahead. Your vehicle is stationary and will
not start driving automatically.
B - The speed/distance control is active but the
vehicle is not ready to drive. No vehicles were de-
tected ahead. Your vehicle is stationary and will
not start driving automatically.
B.- The automatic braking is not enough to
maintain a sufficient distance from a vehicle driv-
ing ahead. You must intervene > page 174, Driv-
er intervention request.
w- Lane guidance is active.
167

Driver assistance

Dp 4 — Lane guidance is switched on but not active.
> 4 - The limits of the system have been reached.
Take over steering.
A / en) - The indicator light turns on if the
steering intervention request is providing a warn-
ing. Always keep your hands on the steering
wheel so you can be ready to steer at any time
=>page 170.

Z\ WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
Using adaptive cruise assist
Applies to: vehicles with adaptive cruise assist


RAZ-0096


Fig. 120 Lever: using adaptive cruise assist

B4M-0232


2
zt
5
©
Fig. 121 Operating lever: changing the speed
Switching on
> To switch on the adaptive cruise assist, 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:
168

> Press the [SET] button @). The set speed is indi-
cated with a marking in the speedometer (@)
= page 167, fig. 118 and shown in the instru-
ment cluster > /\.
> To save the speed while the vehicle is station-
ary, also hold the brake pedal down.

You can set any speed between 15 mph
(20 km/h) and the maximum possible speed
range @) > page 167, fig. 118.
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 A 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 () 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 G) or () until the mark-
ing in the speedometer @) > page 167, fig. 118
has reached the desired speed.
Preselecting a speed
You can also preselect the speed when adaptive
cruise assist 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.

4N0012721BF
Driver assistance

— The system can only react to speed limits that
are 15 mph (20 km/h) or higher.
Display in the speedometer
The display depends on vehicle equipment and is
not available in all layouts”.
@ The marking shows the set speed (regulated
speed that was set by the driver or by predic-
tive control).
@ The red band shows the difference between
the speed limit and the set speed that is set.
@® The gray band shows if the vehicle speed is
planned to drop below the set speed due to
the road layout.
Overriding control
The driver can override the predictive control at
any time by pressing the accelerator or brake
pedal. If the system changes the vehicle speed to
adapt to speed limits, you can change the speed
using the lever > page 168, fig. 121.
Messages
If and a message with Adaptive cruise assist:
Predictive control is displayed when there is a
malfunction, the efficiency assist functions are
unavailable or limited.
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 152 and try to turn the system on
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.

switched on. The driver is always responsible
for assessing the traffic situation.
— The system does not consider “right of way”
rules and does not respond to traffic lights,
so lack of driver attention in these situations
can increase the risk of an accident.
— The speed when driving through curves may
be different from what you as a driver would
do or may not be suitable for the weather
and road conditions. If necessary, apply the
brakes and reduce the selected speed to be
maintained in the Adjustment to curves
along route setting to reduce the risk of an

accident.


ZA WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
— Pay attention to traffic and the area around
your vehicle when predictive control is


D In certain countries.
Gi) Tips
— Predictive control can exceed or drop below
the maximum permitted speed. The driver
is responsible for adhering to the permitted
speed limit.
— The traffic signs on the road always take pri-
ority over the display. The driver is always
responsible for adhering to the regulations
applicable in the country where the vehicle
is being operated.
— Ifa speed limit is detected, the marking @
of the set speed Limit will be adjusted even
if the adaptive cruise assist is not actively
regulating.
— Control by the system depends on which
adaptive cruise assist driving program is set
or on the selected Audi drive select* mode.
— After switching on the ignition and first
driving onto a freeway or similar road with-
out a speed limit, the system will regulate
the speed to 80 mph (130 km/h)). Then
the system adjusts to the last speed set by
the driver.
— There is no adaptation to speed limits when
driving through highway interchanges and
when driving on or off the expressway.
— The system can fail to provide control or the
control may be faulty if the values from the
camera-based traffic sign recognition* are
171
>

Driver assistance

incorrect or the navigation system map data
is outdated.
— When route guidance is switched on, the
system adapts to the route provided by the
navigation system. Driving without route
guidance or leaving a route can result in
faulty control.
Setting the distance
Applies to: vehicles with adaptive cruise assist

B4M-0234


Fig. 124 Operating lever: setting the distance
If you adjust the speed, you must also change the
time gap to the vehicle driving ahead. The higher
the speed, the greater the distance that is need-
ed.
> Tap the rocker switch to display the distance
that is currently set.
> To increase or decrease the distance in incre-
ments, tap the switch again toward @) or ().
The newly-set distance will be shown briefly, for
example with the indicator light. In the Driv-
er assistance display, a graphic display is shown
instead of the indicator lights > page 167,
fig. 119. The display matches the functions of
the indicator lights.

When approaching a vehicle driving ahead, the
adaptive cruise assist brakes to the set speed and
then maintains the set distance. If the vehicle
driving ahead accelerates, then the adaptive
cruise assist will also accelerate up to the speed
that you have set.
The following distances can be set:
172

Meaning

The time between is approximately 1
second. This setting corresponds to a
distance of approximately 92 feet
(100 m) when traveling at 62 mph
(28 m/h).
The time between is approximately 1.3
seconds. This setting corresponds toa
distance of approximately 118 feet
(100 m) when traveling at 62 mph
(36 m/h).
The time between is approximately 1.8
seconds. This setting meets the general
recommendation of “half the speed
shown on the speedometer”. This cor-
responds to a distance of approximate-
ly 164 feet (50 m) when traveling at
62 mph (100 km/h).
The time between is approximately 2.4
seconds. This setting corresponds toa
distance of approximately 219 feet
(100 m) when traveling at 62 mph
(67 m/h).
The time between is approximately 3.6
seconds. This setting corresponds toa
distance of approximately 328 feet
(100 m) when traveling at 62 mph
(100 m/h).
1D
D



Z\ WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.

G) Tips
— When setting the distance, the driver is re-
sponsible for adhering to any applicable le-
gal regulations.
— Depending on the selected driving program
and distance, driving behavior when acceler-
ating may vary from moderate to sporty
=> page 174, Adjusting the adaptive cruise
assist.
—The distances provided are specified values.
Depending on the driving situation and how
the vehicle ahead is driving, the actual >

Driver assistance

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 aA indicator light.
If you are in the Driver assistance display, the
display @ © fig. 126 and the message Warning!
will also appear. An audio signal will also sound.
Your vehicle will drive more slowly when starting.
This may also occur in some situations when
there is no apparent obstacle.
> Press the brake pedal to slow your vehicle
down.

ZA\ WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras © page 150.
— If the message ready to drive!) appears,
your vehicle will start driving even if there is
an obstacle between your vehicle and the ve-
hicle ahead. To reduce the risk of an acci-
dent, always make sure there are no obsta-
cles between your vehicle and the vehicle
driving ahead.

G) Tips
For safety reasons, adaptive cruise assist is
only active if:
— The driver's safety belt is fastened
— All doors and the hood are closed
— Your vehicle is not stopped for a long period
of time

D_ This is not available in some countries.
174
Driver intervention request
Applies to: vehicles with adaptive cruise assist
Fig. 127 Instrument cluster: request for driver interven-
tion
The request for driver intervention instructs you
to resume manual control of the vehicle if the
adaptive cruise assist braking function is not able
to maintain a sufficient distance to the vehicle
ahead. The system will warn you of the hazard
with the A indicator light and the message Dis-
tance!. An audio signal will also sound.
The display @ only appears when the Driver as-
sistance display is open in the on-board comput-
er > page 16.

ZA\ WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
Adjusting the adaptive cruise assist
Applies to: vehicles with adaptive cruise assist

You can adjust the adaptive cruise assist to your
own preferences. The settings depend on the ve-
hicle equipment.
> Applies to MMI: Select on the home screen: VE-
HICLE > Driver assistance > (<3) > Adaptive
cruise assist.
Possible settings:
Lane guidance - If lane guidance is also active
when adaptive cruise assist control is active, you
can switch it on or off.
Driving program - Depending on the driving pro-
gram and the distance that are set, the vehicle

>

4N0012721BF
Driver assistance

Audi pre sense preemptive safety measures
Applies to: vehicles with Audi pre sense
Depending on the vehicle speed and the vehicle
equipment, the following functions may be initi-
ated in certain situations:
— Visual and audio warnings
— Reversible tensioning of safety belts
— Closing the windows and panoramic glass roof
— Adjusting the seats
— Other preemptive safety measures by individual
systems

ZA WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
@ Tips
— Depending on the risk situation that is de-
tected and the selected Audi drive select*
mode, not all preemptive safety measures
may be initiated under certain circumstan-
ces. Certain functions can be adjusted or
skipped if necessary.
— Audi pre sense may be restricted or unavail-
able under certain circumstances, for exam-
ple if:

— There are passengers with unfastened
safety belts
— After turning on the ignition, as long as
the 8 indicator light is on.
— When driving in reverse.
— There is an airbag control module mal-
function
— System functions may not be available if
the ESC is limited or switched off, or if
there is a malfunction.
PAU eed
Applies to: vehicles with Audi pre sense basic
Audi pre sense basic is automatically active at
speeds of approximately 20 mph (30 km/h) and
higher. Audi pre sense basic can trigger preemp-
tive safety measures during emergency braking
and dangerous braking maneuvers as well as in
unstable driving situations, such as oversteering
or understeering > page 179, Audi pre sense pre-
emptive safety measures.
The message Audi pre sense © will warn you
about the danger.

ZX WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
Audi pre sense front
Applies to: vehicles with Audi pre sense front


Within the limits of the system, Audi pre sense
front can warn about an impending front end col-
lision and brake the vehicle strongly, if necessary.
The system uses the camera behind the wind-
shield and is available at speeds above approxi-
mately 6 mph (10 km/h).
Driving situations
The situations to which the system reacts de-
pends on the vehicle speed.
Up to speeds of approximately 50 mph
(85 km/h), the system may react to the following
situations:
— Pedestrians and cyclists in your lane
Up to speeds of approximately 155 mph
(250 km/h), the system may react to the follow-
ing situations:
—Avehicle driving ahead clearly applies the
brakes
— When approaching a vehicle ahead that is clear-
ly traveling more slowly
— When approaching a stationary vehicle
Prewarning
To warn about detected dangers, Audi pre
sense [@ will appear in the instrument cluster
and an audio signal will sound.
A brief application of the brakes
If a collision is imminent, there may be an acute
warning using a brief application of the brakes.
You
will also be warned about the danger by an
indicator in the instrument cluster display. You >
179

Driver assistance


as well as the vehicle's surroundings with di-
rect eye contact.
— The system may not react if vehicles are ap-
Proaching very fast.
@ Tips
— The coverage areas of the sensors > fig. 135
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 341.

Emergency assist
Applies to: vehicles with emergency assist
General information
Within the limits of the system, emergency assist
can detect inactivity from the driver. In these in-
stances, the system will warn the driver, assume
control of the vehicle if necessary, and bring the
vehicle automatically to a stop in the lane.
Regardless of the speed, the emergency assist is
automatically available when the adaptive cruise
assist* is activated. When the adaptive cruise as-
sist* is deactivated, the system is only available
at speeds above approximately 40 mph
(65 km/h).
Emergency assist functions
Measures may be initiated in stages. The vehicle
can be controlled with the limits of the system.
The measures depend on the dangerous situation
and the vehicle equipment:
— Visual and audio warnings
— Vehicle control
— Reduction of vehicle speed in stages
— Lowers the volume of the Infotainment system
— Tugs on the safety belt
— Activates the brakes
— The emergency flashers are activated

) This function is not available in every market and on all ve-
hicle equipment levels.
186
— Audi pre sense preemptive safety measures are
triggered > page 179
— The brakes are applied until the vehicle is sta-
tionary
As soon as the vehicle comes to a full stop, the
vehicle prepares for the vehicle passengers to be
rescued. The parking brake is set, “P” gear is en-
gaged, the doors are unlocked, and the interior
lighting is activated. The emergency call) will be
started if necessary once the vehicle has been
stationary
for several seconds.
Display
If /3\ is displayed for example, the emergency
assist is active.
Overriding the emergency assist
You can override emergency assist as follows
SA:
— Move the steering wheel. Or
— Press the brake pedal. Or
— Press the accelerator pedal distinctly.
When stationary, you can end the emergency as-
sist by leaving the "P" position or releasing the
parking brake > page 121.
Switching the emergency assist on and off
The system can be switched on and off in the
MMI > page 153.
Messages
rg or Eis displayed when there is a malfunc-
tion, the emergency assist functions may be un-
available or may be limited.
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 152 and try to turn the system on
again later.

4N0012721BF
Parking and maneuvering

Preparing the vehicle
> To enable the selected parking space (2) for re-
mote controlled parking, press E @ on the up-
per display.
> If you have already approached a parking space
in the vehicle, remote controlled parking can be
activated to continue with the rest of the park-
ing process. To enable remote controlled park-
ing, press [J in the upper display.
> Exit the vehicle while the engine is running and
take the vehicle key with you. Always keep both
the vehicle key and the mobile device with you
during the entire remote controlled parking
process.
> Make sure that all doors and the luggage com-
partment lid are closed.
Starting the parking process
> Start the myAudi app soon, or the function will
be canceled.
> Pay attention to the path of the vehicle. If the
traffic situation permits, park your vehicle in
the parking space using the mobile device
> JX. The vehicle key and the mobile device
cannot be more than approximately 20 feet
(6 m) away from the vehicle.
> Pay attention to the path of the vehicle. In un-
clear situations, pause the parking process us-
ing
the mobile device. For example, this may be
necessary if an obstacle appears or the vehicle
comes very close to an obstacle.
> To resume the parking process, start it again on
the mobile device. The rest of the parking proc-
ess will be recalculated based on the vehicle po-
sition.
End of the parking process
If an obstacle appears, stop the parking process
=> page 206.
The parking process will end automatically once
the vehicle has reached the end point in the park-
ing space. Once parking is successfully complet-
ed, the parking lock will be engaged, the parking
brake will be set, and the engine will switch off.
The vehicle will also be locked.

ZA WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
— Failing to pay careful attention to the vehi-
cle's surroundings increases the risk of an
accident. Park your vehicle with the mobile
device only if you are sure that no obstacle is
in the vehicle's path or under the vehicle,
and that no obstacles will move into the ve-
hicle's path.
@ Tips
— If the parking space is located in a garage, it
must be detected correctly by the vehicle.
When the parking space is detected com-
pletely, the edges of the space will be high-
lighted @).
— The parking process can only be started if
the vehicle key is located outside the vehicle
after the vehicle is prepared. Always keep
both the vehicle key and the mobile device
with you during the entire remote control-
led parking process.
— Remote controlled parking may be restrict-
ed or unavailable in situations such as the
following:
—If the ESC is restricted or switched off, or
if there is a malfunction.
—If there is another vehicle key inside the
vehicle or nearby.
— The system can incorrectly interpret parking
space barriers (such as parking curbs). Take
over the parking process > page 206 if the
vehicle is not completely inside the parking
space or if the vehicle tries to drive over the
parking space barrier.


205

4N0012721BF
Parking and maneuvering


and that no obstacles will move into the ve-
hicle's path.
@) Tips
The parking process will be interrupted tem-
porarily if an obstacle is detected.


Maneuver assist!)2)
Applies to: vehicles with maneuver assist

Fig. 152 Upper display: maneuver assist
General information
The maneuver assist supports the driver when
maneuvering and parking by monitoring the area
in front of, behind, and beside the vehicle using
sensors. If there is an impending collision with an
object, the system will intervene within its limits
and attempt to prevent the collision by applying
the brakes. The system will detect objects that
are approximately 8 inches (20 cm) high or high-
er.
Display overview
The displays @ - @ indicate the status and avail-
ability of the maneuver assist.
@ The white border indicates the availability in
this area.
The red border indicates an object nearby.
If there is no border, this indicates an inactive
area (partial availability).
®
©®&
Activate/deactivate maneuver assist and sta-
tus displays:

)_ In preparation at the time of printing.
2) System availability may be limited depending on the mar-
ket.
— 4 Maneuver assist activated. The vehicle is
bordered in white. If the sensors are parti-
ally available, the white border will only be
visible in the monitored areas.
— % Maneuver assist is temporarily deacti-
vated.
— (symbol shown in gray) Maneuver assist
is not available.
— No symbol: maneuver assist was switched
off completely in the settings.
Braking intervention
Braking intervention can be initiated if there is an
impending possible collision with a detected sta-
tionary object. If the brakes were applied until
the vehicle stopped, Maneuver assist: vehicle
has been braked. Obstacle detected will appear
in the instrument cluster and you must take over
control of the vehicle.
If you continue driving toward the obstacle after
the
vehicle is braked to a stop, maneuver assist
will automatically be temporarily deactivated un-
til the next maneuvering situation.

Z\ WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
(i) Tips
-If the B indicator light blinks while driving,
ESC will intervene to regulate and maneuver
assist will be canceled.
— System functions may not be available if the
ESC is limited or switched off, or if there is a
malfunction.
— The system will not be available when cer-
tain assist systems are switched on or if
park assist plus is used.


207

Checking and Filling

cause overheating and damage to the catalytic
converter.
Malfunction Indicator Lamp (MIL)
If the S indicator light blinks or turns on, there
is a malfunction that is causing poor emissions
quality and that could damage the catalytic con-
verter. Drive slowly to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction corrected.
The indicator light can also turn on if the fuel fill-
er cap is not closed correctly > page 271).
Engine compartment
General information
Special care is required if you are working in the
engine compartment
For work in the engine compartment, such as
checking and filling fluids, there is a risk of in-
jury, scalding, accidents, and burns. For this
reason, follow all the warnings and general
safety precautions provided in the following in-
formation. The engine compartment is a dan-
gerous area in the vehicle. > A.
Explanation of warnings (sticker in the engine
compartment):
®

Hot engine components!
Rotating parts!

The catalytic converter can be damaged
"127i if the oil level is too high!

Always follow the instructions in the op-
oA erating manual.



The radiator fan can switch on at any
i, time!

High voltage! Switch off the engine be-
5 fore coming into contact with any igni-
tion system components!



Applies to: vehicles with plug-in hybrid
drive: High voltage! The voltage in the
high-voltage system is high enough to
EN cause fatal injuries. Touching a damaged
high-voltage component can result in a
fatal electric shock.


D_ Depending on the engine and country
274

ZA\ WARNING
— Turn the engine off.
— Switch the ignition off.
— Set the parking brake.
— Select the “P” (Park) selector lever position.
— Allow the engine to cool.
— Keep children away from the engine com-
partment.
— Never spill fluids on a hot engine. These flu-
ids (such as the freeze protection contained
in the coolant) can catch fire.
— Avoid short circuits in the electrical system.
— Never reach into the radiator fan. The fan is
temperature-controlled and can turn on
suddenly, even when the ignition is switched
off.
— Never open the hood when there is steam or
coolant escaping from the engine compart-
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
— Plug-in hybrid drive: The coolant expansion
tank cap is equipped with a seal that must
never be removed under any circumstances
= page 277, fig. 181. If the coolant expan-
sion tank for the high-voltage system is not
sealed, please contact an authorized Audi
dealer or authorized Audi Service Facility.
— Plug-in hybrid drive: The sealed cap must
only be opened by an authorized Audi dealer
or authorized Audi Service Facility.
—The cap on the coolant expansion tank must
never be opened when the coolant is hot.
The cooling system is under pressure. There
is a risk of burns
—To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
thick cloth when opening.