2021 AUDI E-TRON electrical system

Driving


ZA\ WARNING
Other road users may not be able to defini-
tively hear electric vehicles when they are
driving. This increases the risk of an accident
particularly when driving in areas with little
traffic, when maneuvering, or when driving in
reverse.

ient and environmentally-friendly

i}
Your driving style greatly influences the amount
of fuel and energy consumed, the environmental
impact, and the wear on the motor, brakes, and
tires. Note the following information for efficient
and environmentally-conscious driving:
— Select the Audi drive select* efficiency mode.
— Turn off electrical equipment that is not need-
ed, for example seat heating*.
— Anticipate upcoming traffic situations while
driving to avoid unnecessary acceleration and
braking.
— Avoid driving at high speeds.
— Avoid adding extra weight to the vehicle if pos-
sible, for example by not leaving roof racks or
bike racks installed when they are not needed.
— Make sure the tire pressure is correct.
— Have maintenance performed regularly on the
vehicle.
— Do not drive with winter tires during the summ-
er.
— Brake early and evenly to use recuperation.
Messages
B Drive system: malfunction! Safely stop vehi-
cle
There is a malfunction in the drive system. The
vehicle can no longer be driven. Park the vehicle
in a safe location as soon as possible. Secure the
vehicle against rolling before exiting the vehicle
= page 91. See an authorized Audi dealer or au-
thorized Audi Service Facility for assistance.
B Drive system: malfunction! Please contact
Service
96
There is a malfunction in the drive system. Drive
slowly to an authorized Audi dealer or authorized
Audi Service Facility to have the malfunction cor-
rected.
oO Drive system: warning! Limited performance
The driving power is limited. The high-voltage
battery may not be sufficiently charged or is at
the operating temperature threshold, for exam-
ple, when the outside temperatures are extreme-
ly cold.
BS Vehicle sound: malfunction! Pedestrians
cannot hear vehicle. Please contact Service
There is a malfunction in the vehicle sound func-
tion. Drive extremely carefully, since other road
users may not be able to hear your electric vehi-
cle. Drive to an authorized Audi dealer or author-
ized Audi Service Facility immediately to have the
malfunction corrected.
Brakes
ere el eiy
You can apply the vehicle's brakes using the brake
pedal.
Operating noise
Noises may occur when braking depending on the
speed, braking force, and outside conditions such
as temperature and humidity.
When the vehicle is stationary, the brake system
performs system tests at regular intervals. This
can cause brief noise and haptic feedback effects
on the brake pedal.
Braking effect
The response time from the brakes depends on
the weather and environmental conditions. To
ensure the optimal braking effect, the brake sys-
tem is cleaned at regular intervals. This is done
by applying the brake pads to the brake rotors for
a short period of time when driving at high
speeds when the windshield wipers are switched
on.
If the brake system becomes damp, for example
after driving in heavy rain, the braking effect may >

4KE012721BF
Driving

@ For the sake of the environment
Avoid actions that are damaging to the envi-
ronment. Show respect for the natural envi-
ronment and remain on marked routes.
@ Tips
Clean your vehicle after driving offroad. Dirt
and stones falling off your vehicle can affect
other road users.
Driving through water
If you must drive through water, follow these in-
structions:
— Check the stability of the ground, the current,
and the water depth. If the ground is unstable,
there is a strong current, or there are waves,
the water must only reach up to the lower edge
of the body at the most.
— Drive carefully and no faster than at walking
speeds to prevent the front of the vehicle from
creating waves, because they could splash
above the lower edge of the body. Oncoming
vehicles could also create waves.
— Do not stop the vehicle while in the water.
— Drive in reverse.
— Do not switch off the drive system.

Z\ WARNING
After driving through water, press the brake
pedal carefully to dry the brakes so that the
full braking effect will be restored.
@) Note
Vehicle components such as the motor, drive
system, suspension, or electrical system can
be severely damaged by driving through wa-
tele
@) Tips
If possible, avoid driving through salt water
because it increases the risk of corrosion. Use
fresh water to clean any vehicle components
that come into contact with salt water.

Hill descent assist
Applies to: vehicles with hill hold assist
The “& button is located in the function bar on
the lower display. It lights up when the system is
turned on.
Hill descent assist can assist you when driving
down hills by maintaining a constant vehicle
speed by automatically braking all four wheels.
You can adjust the speed using the accelerator
and brake pedals. The regulation depends on the
hill and the vehicle speed.
> Switching on: press e
> Switching off: press “ again.
Active regulation
Regulation begins shortly after you start driving
and is possible at speeds up to approximately 19
mph (30 km/h) and on hills that have an approxi-
mately 6-60% grade. If these conditions are met,
regulation will be activated and the indicator
light will turn on.
Ready mode
If one of the requirements for active regulation is
not met, the system will be in ready mode. The
a indicator light will turn on. Once the require-
ments are met again, the system will be able to
provide active regulation again.

ZA\ WARNING
— Be ready to apply the brakes at all times
when using the hill hold assist.
— Always adjust the speed to the visibility,
weather, road, and traffic conditions. The
system cannot replace the driver's atten-
tion.
— The system cannot maintain a constant vehi-
cle speed in all situations, for example when
on smooth or slippery ground. This can in-
crease the risk of an accident.
G) Tips
If you select the Audi drive select* offroad
mode, hill descent assist will switch on.

101

High-voltage system

Charging at household and industrial sockets
or at public charging stations with
alternating current (AC)
The vehicle's high-voltage battery can be charged
with alternating current (AC) via the charging
port () on the driver's side. Depending on the ve-
hicle equipment, there may be a second charging
port © on the front passenger's side. Both
charging ports have the same charging power.
You can use whichever charging port is more con-
venient for your charging setup. When using one
charging port, the opposite charging port is
locked.
Quick charging at public direct current (DC)
charging stations
The vehicle’s high-voltage battery can be charged
at a direct current (DC) charging station via the
charging port on the driver's side (S). There is a
significant decrease in charging time. The charg-
ing cable used may be a maximum of 98 feet (30
m).
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
Important safety precautions

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.
— Never charge with both vehicle charging
ports at the same time.
— Only use the charging equipment provided
by the factory or the charging station cable.



ZA\ WARNING
Short circuiting, electric shock, explosions,
fire, and severe burns can result from charg-

ZA\ WARNING
Applies to: Audi charging systems
Sockets that are installed incorrectly can
cause electric shock or fire when charging the
high-voltage battery using the vehicle charg-
ing connection.
— Read all information and safety precautions
for Audi charging systems before using
them.



110

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High-voltage system



— Monitor the Audi charging system if it is be-
ing used near children.
— Installation and setup of the household con-
nection for Audi charging systems may only
be performed by a qualified electrician. The
qualified electrician is thereby responsible
for adhering to applicable standards and
regulations.
— Make sure that the household socket is
grounded and shielded from water.
— If Audi charging systems do not function ac-
cording to the specifications in the operat-
ing manual, they must not be used. Contact
an authorized Audi dealer or authorized
Audi Service Facility.
— Audi charging systems are intended for use
in private and semi-private areas (for exam-
ple, private property and company parking
lots). Depending on the country where the
vehicle is operated, charging with a mode 2
charging cable (meaning charging with the
Audi charging system) may be prohibited in
public areas. Contact an authorized Audi
dealer or authorized Audi Service Facility for
more information.
— Operate the Audi charging systems in power
networks that are properly grounded. It can-
not be used with non-grounded power net-
works (such as IT networks).
— When charging the high-voltage battery us-
ing household/industrial sockets, the elec-
trical installation can be used at full capaci-
ty. Audi recommends having a qualified elec-
trician regularly inspect the electrical instal-
lations that are used for charging.
— If possible, disconnect Audi charging sys-
tems from the power network during a
thunderstorm.
— Never submerge the Audi charging systems
or the connectors in water.
— Audi charging systems must only be cleaned
when the control unit is completely discon-
nected from the power supply and from the
vehicle. Use a dry towel to clean.
— Audi charging systems are only intended for
use on Audi vehicles and vehicles within the
Volkswagen Group. Using the devices on

vehicles made by another manufacturer is

not authorized.


() Note
— If the vehicle is not being used for long peri-
ods of time, the high-voltage battery must
be charged after four months at the latest
or the vehicle must be continuously con-
nected to a power source (for 50% charging
target > page 115). Otherwise, the high-
voltage battery could become damaged.
— Make sure that you always use the correct
charging equipment for the country in
which it is being used. Contact an author-
ized Audi dealer or authorized Audi Service
Facility for more information.
— On vehicles with only one charging port,
there is a cover on the opposite side of the
vehicle with no charging components instal-
led underneath it. Do not try to open this
cover.
G@) Tips
— Your vehicle can only be charged at charging
stations that meet the requirements in the
respective country and meet the following
standards, at a minimum:
— GB/T 18487.1 and GB/T 20234 (China)
— IEC 61851 and IEC 62196 (Europe)
— SAE J1772 (North America, Japan)
— You can use your Audi charging system if
there is a household or industrial connec-
tion available at the charging station.
(i) Tips
Applies to: Audi charging systems
— For an uninterrupted charging process, Audi
recommends only charging using sockets
that are connected to a separately protected
circuit.
— Audi recommends using Audi charging sys-
tems in the wall mount clip* during opera-
tion. If this is not possible, always position
Audi charging systems on a secure surface
during the charging process > A.
—To reduce the risk of overheating during op-
eration, do not place Audi charging systems
111
>

High-voltage system

Requirement: the correct power plug must be in-
stalled > page 124.
— Insert the plug into the socket.
— Plug the vehicle charging connector into the ve-
hicle charging port.
— The charging process e will start automatically.
— Once the charging process has completed, un-
lock the vehicle and remove the vehicle charg-
ing connector from the vehicle charging port.
Adjusting the charging power level
The control unit automatically recognizes the
voltage and the available current strength. You
can set whether you would like to charge with full
or reduced charging power. The last setting that
was selected will be saved and used again the
next time the vehicle is charged. If multiple
items are connected to the power circuit, the
charging current may be reduced when charging
Control unit: status and malfunction indicators
at a power outlet. This can help to prevent the
electrical equipment from overheating.
The vehicle has a minimum battery charging ca-
pacity of 880 W. Therefore, if the network volt-
age is less than 200 V, charging using a house-
hold socket will only be possible if the charging
power level is set to 100%. Otherwise, the charg-
ing process will not start.
Before charging, always check if the charging
power setting that was selected last is still suita-
ble.
— To set the charging power level, press and hold
the ® button © ® fig. 87 for at least two sec-
onds.
After the charging power level is set, the status
LEDs Q, {and (will flash green one time. The
selected value (50% or 100%) is displayed on the
left or right side of the ® button.

Indicator lights Meaning Solution


O Green The charger is ready to charge, | Starting the charging process
O O Off but is not charging. => page 112.
O & off
O 0 off
9 Off
O Flashing green _| The vehicle is being charged
QO Off with the ground conductor
E off monitor activated.
0 Off
Off

Flashing green
®O®OVSSC|I®OO0O

ance will be reduced.
C Yellow ed. Possible cause of the mal-
a
& oft is being used in single-phase
mode. The charging perform-
Off
The power cable has overheat- | After the cable cools down, the malfunc-
tion will be automatically cleared. Until it
Off function: a multi-phase socket | cools down, charging performance will be
reduced. If the malfunction continues,
have the power supply/household con-
nection checked by a qualified electrician.

120

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Emergency call

Emergency call
Overview
Applies to: vehicles with emergency call function
An emergency call is a combination of data trans-
mission and a phone call. The data transmission
from your vehicle forwards important informa-
tion, such as the vehicle and position data, to the
emergency call center.
Depending on the country and the vehicle equip-
ment, the following functions may be available:
With the emergency call, you can call for help in
dangerous situations as quickly as possible. Use
this function when emergency help is needed
=>page 191.
— Audi connect emergency call (TPS emergency
call). This eCall system uses emergency call
centers operated by third party providers.
With online roadside assistance, you can request
assistance if there is a breakdown or a minor acci-
dent > page 192.

ZA\ WARNING
In areas with poor GPS reception or outside
the coverage range of the respective cell
phone service provider, some functions and/or
services may not be available, it may not be
possible to send or receive data, or functional-
ity may be limited.
@) Tips
To see which data can be transmitted, visit
your Audi country or sales region website at
www.audi.com.

Emergency call
Applies to: vehicles with emergency call function
The services are provided through a SIM card in-
stalled in the vehicle. Services are provided as-
suming that the cell phone network required for
the installed SIM card is functioning and availa-
ble for use. The services made availably by Audi
are only available within the mobile phone net-
work coverage area for the mobile phone service
provider selected by Audi.

—The emergency call function cannot be deac-
tivated in the Infotainment system settings.
— The availability of the TPS emergency call is
limited to certain times.
—The costs for call and data connections for
TPS emergency calls is included in the price
of the services.
Applies to: vehicles with emergency call function
A TPS emergency call can be made manually or
automatically > page 191.
Making an emergency call
Applies to: vehicles with emergency call function

Fig. 131 Front headliner: cover for the emergency call but-
ton
Manual emergency call
Requirement: the ignition must be switched on.
> Tap the cover (@) to open it.
> Press and hold the emergency call button until
the LED () blinks. The emergency call will be
made.
> If the emergency call button is pressed by mis-
take, then press it again immediately and hold
it until the LED stays on. The emergency call
will be canceled.
Automatic emergency call
The vehicle electrical system initiates an auto-
matic emergency call under certain circumstan-
ces, for example if an airbag deploys. The LEDin >
191

Emergency call

the emergency call button () will blink. The
emergency call will be made. The emergency call
cannot be canceled.
LED status
— Green - The emergency call function is availa-
ble.
— Red - There is a malfunction in the emergency
call function. Contact an authorized Audi dealer
or authorized Audi Service Facility. Note the
messages about the availability of the emer-
gency function > page 192.
— Off - The emergency call function is not availa-
ble, perhaps because no network is available.
Warnings
If there is a critical system failure in the emer-
gency call systems, the vehicle occupants will re-
ceive the following warning: see > page 192, LED
status
and > page 192, Messages.
@) Tips
If the emergency call is canceled due toa
poor connection, then the system automati-
cally tries to connect again.
Messages
Applies to: vehicles with emergency call function
508 Emergency call function: malfunction! Lim-
ited availability. Please contact Service
If this indicator light turns on and this message
appears, the emergency call function is restrict-
ed. For example, you cannot call the emergency
call center, but data may still be transmitted un-
der certain circumstances. Drive to an authorized
Audi dealer or authorized Audi Service Facility im-
mediately to have the malfunction corrected.
BS Emergency call function: malfunction! Func-
tion unavailable. Please contact Service
If this indicator light turns on and this message
appears, you cannot make an emergency call.
Drive to an authorized Audi dealer or authorized

) The availability of the services offered depends on the
country and may change in the future.
192
Audi Service Facility immediately to have the
malfunction corrected.
Online roadside
assistance
Applies to: vehicles with online roadside assistance
An online roadside assistance call )) is a combina-
tion of data transmission and a phone call. The
data transmission from your vehicle forwards im-
portant information to the Audi service center,
such as the vehicle and position data.
Calling online roadside assistance
Applies to: vehicles with online roadside assistance

RAZ-0443


Fig. 132 Front headliner: online roadside assistance but-
ton
Calling online roadside assistance
> Press the button @). The LED in the button
turns red. The online roadside assistance call
will be made.
> If you press the button @) by mistake, then
press it again.
Audi incident assistance
A minor accident may be detected by the vehicle
electrical system. You are able to select between
online roadside assistance and an emergency call
in the MMI.

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Checking and Filling

Checking and Filling
Motor compartment
(eT e @eleurlsela)
Special care is required if you are working in the
motor compartment
For work in the motor 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 vehicle's motor compartment is
a dangerous area. > /\.
Explanation of warnings (sticker in the motor
compartment):
©
Bs
Ay
Always follow the instructions in the op-
OA erating manual.

Hot motor components!
Rotating parts!

The radiator fan can switch on at any
time!

High voltage! The voltage in the high-
voltage system is high enough to cause
fatal injuries. Touching a damaged high-
voltage component can result in a fatal
electric shock.



— The coolant expansion tank cap is equipped
with a seal that must never be removed un-
der any circumstances > page 236. If the
coolant expansion tank is not sealed, con-
tact 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.
—To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
thick cloth when opening.
— 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 chemicals to as short
atime as possible.


Z\ WARNING
— Switch the ignition off.
— Set the parking brake.
— Select the “P” (Park) selector lever position.
— Keep children away from the motor com-
partment.
— Never spill operating fluids in the motor
compartment.
— Avoid short circuits in the electrical system.
— Never open the hood when there is steam or
coolant escaping from the motor compart-
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
— The cap on the coolant expansion tank may
only be opened by an authorized Audi dealer

ZA WARNING
The voltage in the high-voltage system is high
enough to cause fatal injuries. Touching a
damaged high-voltage component can result
in a fatal electric shock. The components in
the high-voltage system are marked with a
warning label which warns of the high-volt-
age.
— The voltage level in the high-voltage system
is still dangerous and potentially life-threat-
ening when the ignition is switched off.
— Never perform work on orange high-voltage
cables or on high-voltage components. Only
authorized repair facilities that are certified
may perform work on the high-voltage sys-
tem.


or authorized Audi Service Facility.


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

233