2021 AUDI A8 climate control

Warm and cold

Warm and cold
Climate control system
One of the following options may be available,
depending on vehicle equipment:
— A deluxe automatic climate control system with
3 zones where the temperature, air distribu-
tion, and air supply can be set separately on the
left front side, the right front side, and in the
rear
— A deluxe automatic climate control system with
4 zones to individually adjust the temperature,
air distribution, and amount of ventilation at all
of the seats
The climate control system warms, cools, dehu-
midifies, and filters the air in the vehicle interior.
It is the most effective when the windows and
panoramic glass roof* are closed. If there is a
build-up of heat inside the vehicle, ventilation
can help to speed up the cooling process.
The deluxe climate control system automatically
maintains a temperature once it has been set. In
all heating mode functions except defrost, the
blower only switches to a higher speed once the
coolant has reached a certain temperature.
Pollutant filter
The pollutant filter removes pollutants such as
dust and pollen from the air.
@ For the sake of the environment
Energy can be saved by switching off the A/C
mode.
@ Tips
— To prevent interference with the heating or
cooling output and to prevent the windows
from fogging over, the air intake in front of
the windshield must be free of ice, snow,
and leaves.
— Condensation from the cooling system can
drip and form a puddle of water under the
vehicle. This is normal and does not mean
there is a leak.
100

— The energy management system may tem-
porarily switch off certain functions, such as
the seat heating” or rear window defogger.
These systems are available again as soon as
the energy supply has been restored.
[RAZ-0638


Fig. 89 Center console: lower display and switch panel
The settings can be adjusted using both displays,
the switch panel in the center console, the con-
trol panel in the rear*, or the Rear Seat Remote*
display. For information on how to operate the
touch displays, see > page 18, Touch displays.
You can adjust all climate control system settings
in the front; only certain functions are available
in the rear.
Lower display
The lower display has two sections with controls:
You can regulate the blower and the air distribu-
tion automatically using AUTO in area @). You can
also apply individual settings here.
In area Q), you can switch individual climate con-
trol system functions on and off.
Switch panel in the center console
Both the & and & buttons to defog windows as
quickly as possible are located in area @).
Upper display
In the upper display, you can switch additional
functions on and off, display them, and adjust
settings.
> Applies to: MMI: Select on the home screen:
VEHICLE > Air conditioning, or
> Press +++ on the lower display.

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Warm and cold

Rear Seat Remote*
Using the Rear Seat Remote, you can also control
certain climate control system functions from
the rear.
Control panel in rear
You can operate certain climate control functions
in the rear using the control panel.
Customizing
A climate control function from the upper display
can be assigned to each button to the left and
right of +++ in area @).
> Press and hold the symbol for the desired func-
tion on the upper display for at least three sec-
onds. A menu that consists of two sections ap-
pears.
> If you pull the symbol toward the left section,
the button to the left of «++ will be assigned.
> If you pull the symbol toward the right section,
the button to the right of -+- will be assigned.
Press the buttons to turn the functions on or off.
One bar in the button or the LED in the button
will light up when the function is switched on.
Some buttons can have several functions as-
signed to them. The various functions can be ac-
tivated by pressing the button multiple times.
AUTO Automatic mode
The automatic mode regulates the amount of air
and air distribution automatically, so that the set
temperature is reached is quickly as possible.
REAR Rear climate control system
To enable operation of the climate control sys-
tem from the rear of the vehicle, press REAR.
To exit this mode again, press REAR or
REAR MODE EXIT.
SYNC Synchronization
When synchronization is switched on, the tem-
perature, air distribution, and blower strength on
the
driver's side is applied to all seat positions.
You can also control the synchronization directly
using a gesture. Pull two fingers together on the
lower display > page 18.
OFF Switching off
The climate control system is switched off. Air
supply from the outside is blocked. If you press
OFF in the front, the front and rear climate con-
trol system will switch off. If you press OFF in the
rear, the rear climate control system will switch
off. To switch the climate control system back on,
press on any button in the respective display.
A/C / ME Cooling mode
The cooling mode only functions with the blower
turned on. The air is not cooled and humidity is
not reduced when cooling mode is switched off.
This can cause fog on the windows. The cooling
mode switches off automatically at low outside
temperatures.
If you activate the A/C, the cooling mode will be
automatically regulated.
If you activate A/C, the cooling mode will run with
maximum cooling output and maximum blower
speed. To reduce unnecessary energy usage, only
use this function briefly.
+ /- Temperature
Temperatures between 60 °F (+16 °C) and 84 °F
(+28 °C) can be set. If outside of this range, LOW
or HIGH will appear in the display. In both set-
tings, the climate control runs constantly at the
maximum cooling or heating level. The tempera-
ture is not regulated.
§8 Blower
With  /_A, you can manually adjust the vol-
ume of air generated by the blower to your pref-
erences. The blower should always run at a low
setting to prevent the windows from fogging and
to ensure a continuous exchange of air inside the
vehicle. To have the blower regulated automati-
cally, press AUTO.
2 Air distribution
With °/<>/%, you can select the vents from
which the air will flow. To have the air distribu-
tion controlled automatically, press the AUTO
101
>

Warm and cold

Steering wheel heating
Switching on and off
Applies to: vehicles with steering wheel heating
> Press @ to switch steering wheel heating on or
off.
You can also operate the steering wheel heating
using the multifunction steering wheel
=> page 37.
Messages
Applies to: vehicles with steering wheel heating
@ Steering wheel heating: on / Steering wheel
heating: off
This message appears if you have switched the
steering wheel heating on or off.
Steering wheel heating: malfunction! See own-
er's manual
If this message appears, there is a malfunction.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
Auxiliary climate control
Applies to: vehicles with auxiliary climate control
The auxiliary climate control system warms or
cools the vehicle interior. The vehicle will turn on
the auxiliary climate control system if needed,
depending on the last temperature that was set
with the climate control system controls. This
function can be used when the drive system is
switched off.
You can turn the auxiliary climate control system
on and off immediately in the MMI or set a timer.
Requirement: the charge level of the high-volt-
age battery must be sufficient.
G) Tips
— Using the auxiliary climate control while
charging can also reduce the charge level of
the high-voltage battery.
104
— Starting or stopping the vehicle will not
switch off the auxiliary climate control auto-
matically.
Applies to: vehicles with auxiliary climate control
Applies to: MMI: Select on the home screen: VE-
HICLE > Air conditioning > f.
Immediate start
You can immediately switch the auxiliary climate
control on and off using the — button. When this
function is switched on, a colored bar lights up
over the button and the remaining time is dis-
played.
The auxiliary climate control will run for a maxi-
mum of 30 minutes after the immediate start.
When charging with sufficient charging power,
the auxiliary climate control can run for up to 60
minutes.
Timer programming
You can set up and activate up to two timers for
the departure time.
> Select one timer.
> Set the date and press Next.
> Set the time (departure time) and press OK.
The timer will be activated automatically once
itis set.
> Set the second timer, if necessary.
By setting the departure time, you determine
when your vehicle should reach the desired tem-
perature. The departure time can be a maximum
of six days in the future. The auxiliary climate
control will continue to run approximately ten
minutes after the departure time is reached.
After switching off the ignition
Information about the active timer(s) will appear
on the upper display after switching off the igni-
tion. You can start the set climate control set-
tings immediately with the F button, or go to the
auxiliary climate control menu with the > button. >

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Warm and cold

@) Tips
— Make sure the time and date match in the
system settings so that the timer can func-
tion correctly > page 263.
— The auxiliary climate control can also be
switched on and off immediately when a
timer is set.
— You can operate the climate control in the
vehicle interior when the high-voltage bat-
tery is charging using the charging timer
= page 136. The climate control output de-
pends on the power supply capacity.
Additional settings
Applies to: vehicles with auxiliary climate control
> Applies to MMI: Select on the home screen: VE-
HICLE > Air conditioning > F > <2.
Start A/C after unlocking
If this function is activated, the climate control
will continue to run for five minutes after the ve-
hicle has been unlocked.
Comfort aux. A/C
Applies to: vehicles with comfort auxiliary climate control
You can set if the steering wheel heating* and
seat heating” or seat ventilation* should also be
automatically activated with auxiliary climate
control. You can select the respective zones.
Window and mirror heating*
Applies to: vehicles with comfort auxiliary climate control
You can set if the rear window and mirrors should
also be heated during auxiliary climate control.
Messages
Applies to: vehicles with auxiliary climate control
2— There is a malfunction in the auxiliary air
conditioning.
If this message appears, there is a system mal-
function. Drive immediately to an authorized
Audi dealer or authorized Audi Service Facility to
have the malfunction repaired.
Fluids in the A/C system
Refrigerant in the A/C system
The sticker in the engine compartment provides
information about the type and amount of refrig-
erant used in the vehicle’s A/C system. The stick-
er is located in the front section of the engine
compartment or at the front or back of the hood.

Symbol | Meaning

Warning: the A/C system must only
be serviced by qualified technicians. A
Refrigerant type
wt
ot
Lubricant type

Refer to the service information
(only available for authorized Audi
dealers or authorized Audi Service
Facilities)
Y

The A/C system must only be serv-
iced by qualified technicians.

Flammable refrigerant
Se
Be

Make sure all components are dis-
posed of correctly and never install
components in the vehicle that have
been removed from old vehicles or
a


taken from recycling.

Lubricant in the A/C system
The sticker in the engine compartment provides
information about the type and amount of refrig-
erant oil used in the vehicle’s A/C system. For the
refrigerant oil quantity, refer to the Technical Da-
ta > page 344.

ZX WARNING
To ensure secure and safe operation, the A/C
system must only be serviced by qualified
technicians and certified technicians (SAE
standard J2845).


@) Tips
— Never repair the A/C system evaporator with
components from old vehicles or from recy-
cling.
105
>

High-voltage system


Charging method Charging cable

Charge with household and industrial alternat-
ing current (AC) sockets
Audi e-tron compact charging system > page 140

Charge at public alternating current (AC) charg-
ing stations

Charging station cable

Audi recommends using alternating current (AC)
to charge the high-voltage battery at industrial
sockets, charging stations, or a wallbox. This will
allow you to achieve higher efficiency and a con-
siderably shorter charging time when compared
to charging with a household socket.
Only charge at household sockets with the
Audi e-tron compact charging system under spe-
cial circumstances when it is not possible to
charge at an industrial alternating current (AC)
socket or at a public alternating current (AC)
charging station.
High-voltage batteries age over time, which re-
duces the available range. High-voltage batteries
can also age because of how they are used: fre-
quently charging the high-voltage battery com-
pletely accelerates the aging of the battery and
reduces the available range.
Charging time
The duration of the charging process may vary
based on the following factors:
— Sockets being used (household or industrial
sockets)
— Country-specific system voltage, current
strength and number of available phases
— Household connection
— The value set for the charging power level on
the Audi charging system control unit
— Fluctuations in the system voltage
— The temperature outside the vehicle
— The temperature of the high-voltage battery
and the Audi charging system control unit.
— Settings for the climate control inside the vehi-
cle
— Current capacity of the charging connector
— Whether the ignition is on or off
132
Tae ela)
Applies to: vehicles with plug-in hybrid drive

ZA WARNING
Short circuiting, electric shock, explosions,
fire, and severe burns can result from charg-
ing the battery incorrectly (for example by
disregarding general safety precautions, using
unsuitable or damaged sockets and charging
cables, or charging with unsuitable electrical
equipment) and can lead to serious and fatal
injuries.
— Do not charge using sockets/electrical
equipment that is clearly damaged or instal-
led incorrectly.
— Never use charging equipment that is clearly
damaged and/or dirty. Check the charging
equipment for damage before every use.
— Never modify or repair any electrical compo-
nents, especially the high-voltage system.
— Never charge in areas at risk for explosions.
The components in the charging equipment
can trigger sparks, which can cause flamma-
ble or explosive fumes to ignite. To reduce
the risk of explosions, especially in garages,
make sure the Audi e-tron charging system
control unit is at least 19 inches (50 cm)
above the floor when charging.
— Never use the charging equipment with an
extension cord, a cable reel, a power strip,
or an adapter, for example, a travel adapter
or timer.
— Do not touch the contacts on the vehicle
charging port or charging equipment.
— Do not insert any objects in the vehicle
charging port or in the charging equipment.
— Always protect the sockets and connections
from water, moisture and other fluids.
— Only use the charging equipment provided
by the factory or the charging station cable.

High-voltage system


LED on the charging unit Meaning

Off
Vehicle charging system is in sleep mode. A timer may be active,
but charging has not started yet.

Charging process is interrupted.

Pulsing The high-voltage battery is charging.

Green Flashing A timer is active, but charging has not started yet.

On High-voltage battery charging process is completed.

On
Yellow
When using the Audi charging system, make sure the power
plug is inserted in the power socket > page 140. No power sup-
ply was recognized even though the charging cable is plugged
in. Have the power supply or power supply system inspected.
When using the Audi charging system, check the status displays
on the unit > table on page 141. See an authorized Audi dealer
or authorized Audi Service Facility for assistance if necessary.

Flashing
The vehicle is not secured from rolling away. Check if “P” is se-
lected and the parking brake is set. If the LED continues to
flash, see an authorized Audi dealer or authorized Audi Service
Facility for assistance.

Red On

The charging connector may not be able to lock correctly in the
vehicle charging port. Check if the charging connector is insert-
ed correctly. Remove the charging connector and plug it in the
charging port again, or use a different charging station. If the
LED stays turned on, there is a malfunction either in the vehicle
charging system or at the power source. See an authorized Audi
dealer or authorized Audi Service Facility for assistance if neces-
sary.


The outside temperature is too low or too high.

@ Tips
The operation status indicated by the LED on
the charging unit are is displayed in the in-
strument cluster Es.
Setting the timer
Applies to: vehicles with plug-in hybrid drive
Introduction
Configuring the timer
> To set a timer, select > in the line for the de-
sired timer.
> If the timer should be set one time, select Indi-
vidual timer. If the timer should be set to re-
peat, select Repeat timer.
> Set a preferred charging time if desired, for ex-
ample to use off-peak power rates.
> To also activate the climate control with a tim-
er, select CD.

Use a timer to set at what departure time your
vehicle should be fully charged. A timer can ei-
ther be set one time or to repeat at the selected
times. You can also specify if your vehicle should
be heated or cooled to the temperature set in the
climate control system. You can turn on multiple
timers at the same time.
> Applies to: MMI: Select on the home screen:
VEHICLE > Charging & Efficiency > Charging.
136
> Select Next and follow the instructions in the
menu.
Switching on the timer and timer charging
The charging process will only follow the timer
settings if you have switched on the timer and
timer charging.
> To turn ona timer, select CD.

Wheels


ZA\ WARNING
Using incorrect snow chains or installing snow
chains incorrectly can result in loss of vehicle
control, which increases the risk of an acci-
dent.
@) Note
— Snow chains can damage the rims and
wheel covers* if the chains come into direct
contact with them. Remove the wheel cov-
ers* first. Use coated snow chains.

— Do not install and use snow chains if there is
a malfunction in the air suspension, because
the vehicle height will be very low. If you
drive with snow chains anyway, the wheel
housings and other vehicle components can
be severely damaged.
@ Tips
When using snow chains, it may be advisable
to limit the ESC > page 130.
Low-profile tires
Applies to: vehicles with low-profile tires
Compared to other tire/rim combinations, low-
profile tires offer a wider tread surface and a
larger rim diameter with shorter tire sidewalls.
This results in an agile driving style. However, it
may reduce the level of comfort and increase
road noise when driving on roads in poor condi-
tion.
Low-profile tires can become damaged more
quickly than standard tires when driving over
large bumps, potholes, manhole covers, and
curbs. Therefore, it is particularly important to
maintain the correct tire pressure > page 299.
To reduce the risk of damage to the tires and
rims, drive very carefully on poor roads.
Check your wheels regularly every 2,000 mi
(3,000 km) for damage. For example, check for
bulges/cracks on the tires or deformations/cracks
on the rims.
After a heavy impact or damage, have the tires
and rims inspected or replaced immediately by
306
an authorized Audi dealer or authorized Audi
Service Facility.
Low-profile tires can wear out faster than stand-
ard tires.
Uniform tire quality grading
— Tread wear
— Traction AAABC
— Temperature ABC
Quality grades can be found where applicable on
the tire side wall between tread shoulder and
maximum section width > page 290, fig. 187.
For example: Tread wear 200, Traction AA, Tem-
perature A.
All passenger car tires must conform to Federal
Safety Requirements in addition to these grades.
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course.
For example, a tire graded 150 would wear one
and one half (1 1/2) times as well on the govern-
ment course as a tire graded 100.
The relative performance of tires depends upon
the actual conditions of their use, however, and
may depart significantly from the norm due to
variations in driving habits, service practices and
differences in road characteristics and climate.
Traction
The traction grades, from highest to lowest, are
AA,
A, Band C. Those grades represent the tire's
ability to stop on wet pavement as measured un-
der controlled conditions on specified govern-
ment test surfaces of asphalt and concrete. A tire
marked C may have poor traction performance
SA.
Temperature
The temperature grades are A (the highest), B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate >

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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