2021 AUDI A8 parking brake

Parking and maneuvering

Activating or deactivating maneuver assist
Applies to: vehicles with maneuver assist
Requirements
> Maneuver assist must be switched on in the
parking system settings in the MMI.
> The speed must not be higher than approxi-
mately 6 mph (10 km/h).
Automatic activation
Maneuver assist activates automatically when re-
verse gear is engaged while the engine is run-
ning. A brief tone will sound.
Deactivating temporarily
If you do not want to use maneuver assist during
a parking cycle, you can deactivate it temporarily.
If maneuver assist is deactivated temporarily, it
will be activated again automatically the next
time park assist is activated.
> To deactivate maneuver assist temporarily,
press % @) > page 207, fig. 152 in the upper
display. The “% symbol will appear.
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.
Activating manually
You can activate maneuver assist in various ways
depending on the situation:
> To activate maneuver assist manually (such as
when driving forward), press the % button in
the center console.
> To reactivate maneuver assist after it has been
deactivated temporarily, press 74 @,
=> page 207, fig. 152 in the upper display. The
® symbol will appear.
Switching on or off permanently
» Applies to MMI: Select on the home screen: VE-
HICLE > Parking aid > Maneuver assist. Or
> Select [| > Maneuver assist in the upper dis-
play when the parking aid is active.


If maneuver assist is switched off permanently,
there will be no symbol in the center of the vehi-
cle graphic @) > page 207, fig. 152.
208

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

if or fg is displayed when there is a malfunc-
tion, the maneuver 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 and cameras > 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.

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.

4N0012721BF
Checking and Filling


— Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
— Due to the risk of electric shock, never touch
the ignition cable or other components in
the electronic high-voltage ignition system
when the engine is running or is starting.
— If a gear is engaged while the vehicle is sta-
tionary and the engine is running, do not
press the accelerator pedal inadvertently.
Pressing the accelerator pedal will cause the
vehicle to move, and this could result in an
accident.
— If inspections or repairs must be performed
while the engine is running, moving compo-
nents (such as the ribbed belt, generator,
and radiator fan) pose an additional risk.
— Set the parking brake first and select the
“P” (Park) selector lever position.
— Always make sure that no parts of the
body, jewelry, ties, loose clothing, and
long hair can be caught in moving engine
components. Before any work, always re-
move any jewelry and/or ties, tie back long
hair, and make sure all clothing fits close
to the body to reduce the risk of anything
becoming caught in engine components.
— Pay attention to the following warnings list-
ed when work on the fuel system or on the
electrical equipment is required.
— Do not smoke.
— Never work near open flames.
— Always have a working fire extinguisher
nearby.
— All work on the battery or electrical system
in your vehicle can result in injuries, chemi-
cal burns, accidents, or burns. Because of
this, all work must be performed only by an
authorized Audi dealer or authorized Audi
Service Facility.
— Limit your exposure to exhaust and chemi-
cals to as short a time as possible.

emit chemicals known to the State of Cali-
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu-
ids contained in vehicles and certain prod-
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
— Battery posts, terminals and related acces-
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.



ZA WARNING
California Proposition 65 Warning:
— Engine exhaust, some of its constituents,
and certain vehicle components contain or

@) Note
When filling fluids, be sure not to add any flu-
ids to the wrong reservoirs. Otherwise severe
malfunctions and engine damage will occur.
@) For the sake of the environment
You should regularly check the ground under
your vehicle in order to detect leaks quickly. If
there are visible spots from oil or other fluids,
bring your vehicle to an authorized Audi deal-
er or authorized Audi Service Facility to be
checked.
275

4N0012721BF
Emergency assistance

Emergency assistance
General information
> Park the vehicle as far as possible from moving
traffic in the event of a breakdown. In the event
of a flat tire, park the vehicle ona level surface.
If you are ona steep hill, be especially careful.
> Set the parking brake.
> Switch the emergency flashers on.
> Have the passengers exit the vehicle. They
should move to a safe place, for example be-
hind a guard rail.

zs

, WARNING
Follow the steps given above. This is for your
protection and the for the safety of others on
the road.

Equipment
Vehicle tool
vehicle jack
Applies to: vehicles with the vehicle tool kit, tire mobility kit,
and vehicle jack




Applies to: vehicles with conventional drive system
Fig. 191 Luggage compartment: cargo floor cover





Applies to: vehicles with plug-in hybrid drive
Fig. 192 Luggage compartment: cover

Conventional drive system: The vehicle tool kit,
vehicle jack*, tire mobility kit*, and compressor*
are stored in the luggage compartment under
the cargo floor cover > fig. 191.
Plug-in hybrid drive: The vehicle tool kit, tire mo-
bility kit, and compressor are located on the rear
side
of the cover and in the compartment under-
neath > fig. 192.
Conventional drive system
> Lift the cargo floor by the plastic handle
> fig. 191.
> Hook the handle into the luggage compart-
ment weather strip.
> Applies to: vehicles with spare tire: Turn the
handle counter-clockwise and remove the spare
tire.
> Unhook the cargo floor cover before closing the
luggage compartment lid.
Plug-in hybrid drive
> Open the cover using the handle > fig. 192.
Conventional drive system: Depending on the
equipment, the vehicle tool kit and the tire mobi-
lity kit* may be located under the spare tire*, un-
der another cover, or in the tool box.
Tips
— The vehicle jack* does not require any main-
tenance.
— Plug-in hybrid drive: The vehicle must not
be operated without a tire mobility kit.
Tire mobility kit
Applies to: vehicles with tire mobility kit
> Read and follow the important safety precau-
tions > page 317.
> Set the parking brake.
> Select the “P” position.
> Check if a repair with the tire mobility kit is pos-
sible > page 318.
317

Emergency assistance

> Set the parking brake.
> Select the “P” position.
>» When towing a trailer: disconnect the trailer
from your vehicle.
> Lay out the vehicle tool kit > page 317 and the
spare tire > page 323.
» Applies to MMI: Select on the home screen: VE-
HICLE > Settings & Service > Air suspension:
wheel change.
> Switch the ignition off.

ZA\ WARNING
The vehicle must also be secured to prevent it
from rolling when using the vehicle jack”. Use
suitable objects to block the front and back of
the wheel that is diagonal from the wheel
with the flat tire.

Removing the caps


nb oD i)
ail z a

Ve

ae)


é
Fig. 196 Wheel: wheel bolts with caps
> Slide the plastic clip from the vehicle tool kit
onto the cap until it engages > fig. 196.
> Remove the cap with the plastic clip.
320

Tada more) bed
Applies to: vehicles with anti-theft wheel bolts



B4H-0470

Fig. 197 Anti-theft wheel bolt with cap and adapter
You need a special adapter in the vehicle tool kit
to remove the anti-theft wheel bolts.
> Remove the cap @).
> Slide the adapter @) all the way onto the anti-
theft wheel bolt @.
> Slide the wheel wrench* from the vehicle tool
kit all the way onto the adapter @).
> Loosen the wheel bolt > page 320.
@ Tips
Note the code number for the wheel bolt
adapter and store it in a safe place separate
from the vehicle. If you need a replacement
adapter, contact an authorized Audi dealer or
authorized Audi Service Facility and give them
the code number.
Loosening the wheel bolts

B4S-0221

Fig. 198 Wheel: loosening the wheel bolts

Emergency assistance

bar is not available. Use a towing cable made of
synthetic elastic cable similar elastic material.

ZA WARNING
— Towing highly increases the risk of an acci-
dent, for example from colliding with the
towing vehicle.
— To reduce the risk of an accident, do not al-
low anyone to remain inside the vehicle
when it is being transported by a tow truck
or a special transporter.
@) Note
— If normal towing is not possible, for exam-
ple if the transmission is faulty or if the
towing distance is greater than 30 miles
(50 km), then transport the vehicle on a
special carrier.
— If the vehicle is towed by a tow truck at the
axle that is not permitted, this can cause se-
vere damage to the transmission.
— The vehicle must not be tow started for
technical reasons.
@) Tips
— If the power supply is interrupted, then it
will not be possible to move the selector
lever out of the "P" position. The parking
lock must be released using the emergency
release before towing the vehicle
=> page 112.
— Switch Audi pre sense* off > page 181 when
loading the vehicle onto a vehicle carrier,
train, ship, or other type of transportation,
or when towing the vehicle. This can prevent
an undesired intervention from the pre
sense* system.
— Follow the local legal regulations for tow-
ing.
Read and follow the important information under
=> page 325.


326
Preparations
> Only secure the towing cable or tow bar at the
designated towing loops > page 327,
=> page 327.
> Make sure the towing cable is not twisted. Oth-
erwise it could disconnect from the towing loop
while towing.
> Switch the emergency flashers on in both
vehicles > page 61. However, do not do this if it
prohibited by law.
Towing vehicle (front)
> Only start to drive when the towing cable is
taut.
> Press the brake pedal very carefully.
> Avoid sudden braking or driving maneuvers.
Vehicle being towed (rear)
> Make sure the ignition is switched on so that
the steering wheel is not locked and so that you
can use the turn signals, the horn, and the
windshield wipers if needed > A\.
> Switching it off before the vehicle has stopped
may impair the function of the brake booster
and power steering. You would then need to
use more force to steer and brake the vehicle.
> Release the parking brake > page 121.
> Select the “N” selector lever position.
> Make sure the towing cable is always taut.

ZA\ WARNING
— Never tow a vehicle using a tow bar or tow-
ing cable if the vehicle does not have electri-
cal power.
— If the vehicle runs out of power while it is
being towed, stop towing the vehicle imme-
diately and consult an authorized Audi deal-
er or qualified repair facility.

4N0012721BF
Fuses and bulbs


This can cause damage to the electrical sys-
tem and increases the risk of fire.

Fuse panel (2) (brown)


() Note
If a new fuse burns out again shortly after you
have installed it, have the electrical system
checked as soon as possible by an authorized
Audi dealer or authorized Audi Service Facili-
ty.
@ Tips
— The following table does not list fuse loca-
tions that are not used.
— Some of the equipment listed in the follow-
ing tables applies only to certain model ver-
sions or certain optional equipment.
Fuse assignment - left footwell
Fig. 209 Left footwell: fuse panel with plastic clip

Fuse panel @ (brown)
No. | Equipment

Engine ignition coils

Engine start, electric drive clutch

Windshield wiper control module

Left headlight electronics


Ul
WIN)
eR
Climate control system blower

6 | Instrument panel

Windshield wipers

Zz
8 |High-voltage heating, compressor
9 Panoramic glass roof

Fuse panel (2) (black)
No. | Equipment

1 |Engine mount

N Left rear door control module

Windshield washer system/headlight
washer system




4 |Right headlight electronics
5 | Front seat heating
6 |Right rear door control module
7 |Sockets
8 | Left front door control module
9 |Parking heater
Fuse panel @) (red)

No. | Equipment

Anti-theft alarm system

Engine control module

Horn

Parking brake

Diagnostic interface

Roof electronics control module

WOlLOINI
DI
WIN]
rR
Driver assistance systems control module

10 | Airbag control module

Electronic Stabilization Control (ESC), An-
LL
ti-Lock Braking System (ABS)

Rear climate control unit, diagnostic con-
12
nector, light/rain sensor


Climate control system, vehicle electrical
13
system control module

14 | Right front door control module

Climate control system compressor, vehi-
15
cle electrical system control module

16 | Brake system pressure reservoir

Fuse panel (@) (black)

No. | Equipment


1 |Engine components

329

Data privacy

typically 30 seconds or less. The EDR in this vehi-
cle is designed to record such data as:
— How various systems in your vehicle were oper-
ating;
— Whether or not the driver and passenger safety
belts were buckled/fastened;
— How far (if at all) the driver was depressing the
accelerator and/or brake pedal; and,
— How fast the vehicle was traveling.
These data can help provide a better understand-
ing of the circumstances in which crashes and in-
juries occur. NOTE: EDR data are recorded by your
vehicle only if a non-trivial crash situation occurs;
no data are recorded by the EDR under normal
driving conditions and no personal data (e.g.
name, gender, age, and crash location) are re-
corded. However, other parties, such as law en-
forcement, could combine the EDR data with the
type of personally identifying data routinely ac-
quired during a crash investigation.
To read data recorded by an EDR, special equip-
ment is required, and access to the vehicle or the
EDR is needed. In addition to the vehicle manu-
facturer, other parties, such as law enforcement,
that have the special equipment, can read the in-
formation if they have access to the vehicle or the
EDR.
Assist system monitor
This vehicle is equipped with an Assist System
Monitor (ASM). The ASM collects data that is not
stored by the EDR in the event of an accident. The
main task of the ASM is to make it possible to un-
derstand the role and the behavior of the assist
systems in these accident situations. In addition
to the data that the EDR stores, the ASM records
data related to the assist systems starting sever-
al seconds before the accident or near-accident.
The data collected by ASM depends on the equip-
ment and may include the following information:
status information of the assist systems (for ex-
ample, if they are switched on or off, system
events, etc.), control interventions (for example,

D_ System availability may be limited depending on the mar-
ket.
2) In preparation at the time of printing.
334
by ESC, ABS, Audi pre sense’, etc.), and assist
systems settings (such as speed settings).
Special devices and access to the vehicle or to the
ASM are necessary in order to read the data from
the ASM memory. In addition to the vehicle man-
ufacturer, third parties such as law enforcement
authorities can also read and analyze the stored
data if they have access to the vehicle or to the
ASM.
Data usage
Audi can read out the information stored in the
data memories or similar data, or give this infor-
mation to third parties, especially in the follow-
ing situations:
— If the vehicle owner or lessee agrees
— If there is an official request from the police
— Ifa court or authorities request it
If legally permitted, Audi can also use the data
for analysis of vehicle operation and safety per-
formance or provide this data to third parties for
research purposes.
Data memory for autonomous driving!)
Applies to: vehicles with data memory for autonomous driv-
ing
When park assist plus is active > page 198, data
is stored in a memory in the vehicle. This data is
continuously overwritten by more current data
after a few seconds. The data is erased when the
ignition is switched off.
In certain situations, such as if an airbag has
been triggered or a parking process was ended,
the corresponding technical data may be stored
in the data memory for autonomous driving. The
data memory for autonomous driving is a read-
only memory that has a limited amount of stor-
age space. If the storage space is full, the oldest
data will be overwritten with the newest data. >