2020 AUDI E-TRON ECU

High-voltage system

Using the charging equipment
Pay attention to the following information for
safe handling of the charging equipment:
— Secure the charging equipment against any
strain, such as being run over, falling, pulling,
bending, and crushing.
— Do not submerge the charging equipment in
water and do not cover it with snow or ice.
— When you remove the charging cable from the
vehicle and from the power supply, only pull at
the connectors and not at the cable.
— Put the cap on after using the charging cable.
— Only operate the Audi charging system ina
power supply system with a frequency of
50 Hz/60 Hz.
— Only operate or store the Audi charging system
at a humidity level between 5% and 95% (no
condensation).
— The Audi charging system is protected against
dust and splashing water (IP55 (USA: Enclosure
3).
Depending on the country, different warnings
may be on the charging equipment.

Symbol Meaning

Do not operate the Audi charging
system in power networks that are
not grounded (for example, IT net-
works). Only operate the Audi
charging system in grounded power
networks.

Surfaces can become very hot when
in direct sunlight.


Incorrect use increases the risk of
electric shock.


Pay attention to the applicable own-
er's manual, particularly the safety
precautions.


Pay attention to all applicable dis-
posal regulations when disposing.

Do not use any extensions cords or
cable reels.

Symbol Meaning

Operate or store the Audi charging
iS system at a temperature range of
-22 °F (-30 °C) to +122 °F (+50 °C).
Do not use any travel adapters.

Do not use any power strips.

Operate or store the Audi charging
system at a temperature range of
-22 °F (-30 °C) to +122 °F (+50 °C).
ii Do not use any charging cables with
oo, damage to the electronics or the
connecting wires.

Operate or store the Audi charging
system at a maximum elevation of
13,000 ft (4,000 m) above sea lev-
el.
LA
Operate the Audi charging system

in single-phase power supplies.


Operate or store the Audi charging
system at a maximum elevation of
16,400 ft (5,000 m) above sea lev-
el.
=a000m
=5000m Li

The Audi charging system is equip-
ped with a ground conductor that is
not connected.
©



The Audi charging system is equip-
ped with a connected ground con-
ductor.

116
Grounding instructions
Audi charging systems must be grounded. If it
should malfunction or break down, grounding
provides a path of least resistance for electric
current to reduce the risk of electric shock. Audi
charging systems are equipped with a cord hav-
ing an equipment grounding conductor and a
grounding plug. The plug must be plugged into
an appropriate outlet that is properly installed
and grounded in accordance with all local codes
and ordinances.

4KE012721BE
High-voltage system


ZA WARNING
Improper connection of the equipment-
grounding conductor is able to result in a risk
of electric shock. Check with a qualified elec-
trician or serviceman if you are in doubt as to
whether the product is properly grounded. Do
not modify the plug provided with the product
- if it will not fit the outlet, have a proper out-

let installed by a qualified electrician.
Always store the charging equipment securely
before transporting.

> Open the hood = page 241.
> Open the front storage compartment
=> page 76.
>» Stow the charging equipment in the front stor-
age compartment.
> Close the front storage compartment and the
hood.

Z\ WARNING
If the charging equipment is not secured or
positioned correctly, it can slide out of place
and endanger vehicle occupants when brak-
ing, when changing directions, or in a colli-
sion.
— Only transport the charging equipment in
the front storage compartment and never
unsecured or in the passenger compart-
ment.

(@) Note
Always lift or carry the Audi charging system
as one unit and never by the cables.
Audi e-tron compact charging system
Applies to: vehicles with Audi e-tron compact charging system

a o>:

RAZ-0726|



Fig. 90 Audi e-tron compact charging system: components
(example)
You can use the Audi e-tron compact charging
system to charge at a household or industrial
socket. Depending on the country and the vehicle
equipment, the following accessories may be
available:
@ Control unit
@ Vehicle cable with vehicle charging connector
@ Power cable with power plug for household
sockets
Power cable wit power plu for industrial 9g
sockets
Fig. 91 Audi e-tron compact charging system: control unit
The vehicle cable is securely connected to the
control unit. The power cable is plugged into the
upper end of the control unit and can be switched
=> page 122.
117
>

High-voltage system

— If your Audi e-tron compact charging sys-
tem has a fixed connection, meaning can be
connected directly to the power supply
without a power cable, contact a qualified
electrician or an authorized Audi dealer or
authorized Audi Service Facility.
nging or attaching the cable
Applies to: vehicles with Audi charging system

B4G-0681




Fig. 92 Control unit: removing and attaching the cable
Requirements:
> The charging process for the high-voltage bat-
tery must be ended > page 111.
> The vehicle charging connector must be re-
moved from the vehicle charging port.
> The power cable must be removed from the
socket.
Loosening the cable
> If necessary, loosen the screw (8) using the
screwdriver provided.
> Lift the lever @ all the way up.
> Pull the connector (2) out just until you feel re-
sistance.
> Close the lever @ until it is resting on the con-
nector Q).
> Remove the connector (2) completely.
Attaching the cable
> Lift the lever @ up slightly.
> Insert the connector @) into the control unit
just until you feel resistance.
> Lift the lever @) all the way up.
> Insert the connector (2) all the way into the
control unit.
> Close the lever @).
122
> Tighten the screw @) using the screwdriver pro-
vided.

ZA WARNING
— Note the warnings for charging > A\ in
Charging on page 112.
— Before switching a cable, always unplug the
power cable from the socket.
— Only change cables in a dry environment.
— The Audi charging system may only be used
as a complete unit consisting of the power
cables, the control unit, and the vehicle ca-
ble. Depending on the country, the total
length of the power cable, control panel and
vehicle cable may be restricted, for example
to 24.6 ft (7.5 m) in the USA. We recom-


mend using only cables approved by Audi.
G) Tips
The power cable with the power connector for
industrial sockets and the Audi charging sys-
tem control unit are designed to work togeth-
er. Changing the power cable to another con-
nector type may reduce the available charging
power of the entire system. Limitations on
the ability to transfer power (current capacity)
depending on the phase and the number of
available phases may affect the available
charging power.
Wall mount clip
Applies to: vehicles with wall mount cli


[RAZ-0638]


Fig. 93 Wall mount clip: securing the Audi charging system
Securing the Audi charging system
> First insert the control unit in the bottom tabs
on the wall mount clip and then into the upper
tabs.

Trailer towing

Trailer towing
Driving with a trailer
er else)
Your vehicle is primarily intended for transport-
ing people and luggage. However, if you drive
with a trailer, follow the technical requirements,
the operation and driving tips, and the legal reg-
ulations.
Driving with a trailer affects the vehicle's energy
usage, performance, and wear. It also requires
higher concentration from the driver.

Z\ WARNING
Do not transport any people in a trailer due to
the risk of fatal injury.
Technical requirements
Trailer hitch

Only use a trailer hitch with a removable ball
hitch mount and ball hitch. The trailer hitch must
be permitted for the vehicle, the trailer and the
permitted total weight of the trailer being
pulled. Above all, it must be securely and safely
attached to the vehicle trailer.
Never mount a trailer hitch on the bumper. The
trailer hitch must be mounted in a way that does
not impair the function of the bumper. Do not
make any changes to the exhaust system and the
brake system.
Check regularly if the trailer hitch is securely
mounted. Always follow the instructions given by
the trailer hitch manufacturer.
Trailer brakes
If the trailer has its own brake system, then fol-
low the manufacturer specifications. However,
the brake system on the trailer must never be
connected to the vehicle brake system.

Z\ WARNING
— Never mount a "weight-distributing" or
"load-balancing" trailer coupler as the trailer
hitch. The vehicle was not designed for

124

these types of trailer hitches. The trailer
hitch can malfunction and the trailer can
break off from the vehicle.
— If the trailer is equipped with electronic
brakes, these brakes cannot be activated by
a factory-installed control system, which in-
creases the risk of an accident.
—To reduce the risk of injury, always remove
the ball hitch mount if no trailer is mount-
ed.
Operating instructions
Towing capacity

The permitted towing capacity must not be ex-
ceeded under any circumstances > page 298.
You can drive up larger inclines if you are not us-
ing the maximum towing capacity.
Tongue weight
The maximum permitted tongue weight of the
trailer drawbar on the trailer hitch ball head must
not be exceeded.
For driving safety, always using the maximum
permitted tongue weight is recommended, but
not exceed it. Distributing the cargo in the trailer
correctly will help to achieve this weight. Having
the tongue weight too low affects the vehicle's
handling.
You can determine the tongue weight using a
tongue weight scale, a bathroom scale, or a pub-
lic weigh station, for example.
The permitted tongue weight of your vehicle can
be found in the vehicle documentation or in
=> page 298.
Load distribution
Poor cargo load and distribution can negatively
impact vehicle handling. Load the trailer based
on the following criteria as much as possible:
— Store objects in the vehicle luggage compart-
ment, if possible. The vehicle should always
carry the heaviest possible load and the trailer
should have the lightest possible load.

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Trailer towing

— Distribute the load in the trailer so that the
heavy objects are as close to the axle as possi-
ble.
— Secure objects so that they do not slide.
— Utilize the maximum permitted tongue weight
if possible.
Tires
Set the tire pressure on your vehicle for a “full
load”; see the tire pressure sticker > page 258. If
necessary, also adjust the tire pressure on the
trailer according to the manufacturer's specifica-
tions.
The trailer and the vehicle should be equipped
with winter tires when driving in winter tempera-
tures.
Outside mirrors
If you cannot see the traffic behind the trailer
with the standard exterior mirrors, then you
must attach additional exterior mirrors. Adjust
them so you have a sufficient visibility behind
you.
Exterior lighting
Follow the legal regulations for lighting on your
trailer that are applicable in the country where
you are operating the vehicle. Contact an author-
ized Audi dealer or authorized Audi Service Facili-
ty for more information.
Before you start driving, check all lighting equip-
ment on the trailer while it is hitched to the vehi-
cle.
The headlight range control automatically ad-
justs the light range of the headlights.
Safety chains
Make sure the safety chains are correctly applied
when pulling a trailer. The chains should hang
enough so that the trailer can drive around
curves. However, they must not touch the
ground.
Air suspension
Applies to: vehicles with air suspension
The Audi drive select* comfort mode > page 101
must be selected before you adjust the tongue
weight on the trailer and hitch the trailer >@,
=> page 102.
The air suspension trailer mode must be switched
on.
Applies to: MMI: Select on the home screen: VE-
HICLE > Settings & Service > Air suspension:
trailer.
Switch it off again when you are no longer towing
a trailer.
For vehicles with a factory-installed trailer hitch,
the air suspension trailer mode will automatically
switch on if you connect the trailer cable to the
socket.
When using carrier systems that are mounted di-
rectly on the trailer hitch ball head, you can also
switch trailer mode off manually.
If you must drive on roads that are in poor condi-
tion, you can raise the vehicle again after hitching
the trailer or after adjusting the tongue weight
=> page 102.
You can also increase ground clearance by select-
ing the Audi drive select* offroad or allroad
modes > page 101.
Vehicle levels below the values set in the comfort
level will no longer be available, even if you are
lowering the vehicle manually.

ZA WARNING
— Never turn off trailer mode while driving
when a trailer is hitched, because then the
restrictions for controlling the vehicle level
will be turned off.
— Driving with a trailer on unpaved roads when
the vehicle is raised may change the vehicle
handling. Adapt your speed.
— Note that the vehicle will lower automatical-
ly at certain speeds if you have lifted the ve-
hicle manually.

CG) Note
— Applies to: vehicles with air suspension: Se-
lect the Audi drive select* comfort mode.
Otherwise, the tongue load specified for
your vehicle will no longer be applicable.
125
>

Trailer towing

— Attachments retrofitted on the vehicle may
cause damage, especially on the trailer
hitch ball head. In cases of damage, have
the function checked by an authorized Audi
dealer or authorized Audi Service Facility.
G) Tips
— Block the wheels with chocks when parking
on inclines if the trailer is loaded.
— Having the vehicle inspected between the
inspection intervals is recommended if you
tow a trailer frequently.
Driving with a trailer
Driving with a trailer requires extra caution.
Speed
Adhere to the legal speed limits. Follow the legal
regulations that are applicable in the country
where you are operating the vehicle.
As the speed increases, the driving stability of
the trailer decreases. Therefore you should not
exceed the maximum legal speed limit when
there are unfavorable road, weather, and/or wind
conditions. This especially applies when driving
downhill.
Hill
When you start driving uphill or downhill, trailers
may tilt or sway sooner than when driving ona
level surface. If small swaying movements have
already occurred, you can stabilize the trailer by
firmly braking immediately. Never attempt to
“straighten out” the trailer by accelerating.
Reduce the speed and use the recuperation brak-
ing effect > page 92 to relieve the brakes > A\.
Brakes
When using a trailer with overrun brakes, first
brake gently then quickly. This reduces the risk of
jerking while braking if the trailer wheels Lock up.

Z\ WARNING
Constant braking causes the brakes to over-
heat and can substantially reduce braking per-

126


formance, increase braking distance, or cause
complete failure of the brake system.

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Assist systems

Assist systems
General information
Sra eel delay
ZA\ WARNING
— As the driver, you are always completely re-
sponsible for all driving tasks. The assist
systems cannot replace the driver's atten-
tion. Give your full attention to driving the
vehicle, and be ready to intervene in the
traffic situation at all times.
— Activate the assist systems only if the sur-
rounding conditions permit it. Always adapt
your driving style to the current visual,
weather, road, and traffic conditions.
— Loose objects can be thrown around the ve-
hicle interior during sudden driving or brak-
ing maneuvers, which increases the risk of
an accident. Store objects securely while
driving.
— For the assist systems to be able to react
correctly, the function of the sensors and
cameras must not be restricted. Note the in-
formation on sensors and cameras
=> page 128.



@ Tips
— Pay attention to applicable local regulations
relating to driving tasks, leaving space for
emergency vehicles, vehicle distance, speed,
parking location, wheel placement, etc. The
driver is always responsible for following
the laws that are applicable in the location
where the vehicle is being operated.
— You can cancel a steering or braking inter-
vention by the system by braking or acceler-
ating noticeably, steering, or deactivating
the respective assist system.
— Always check the assist systems settings be-
fore driving. The settings could have been
changed, for example, by other drivers or if
another personal profile was used.
System limitations
ZA\ WARNING
—The use of an assist system cannot over-
come the natural laws of physics. A collision
cannot be prevented in certain circumstan-
ces.

— Warnings, messages, or indicator lights may
not be displayed or initiated on time or cor-
rectly, for example, if vehicles are approach-
ing very fast.
— Corrective interventions by the assist sys-
tems, such as steering or braking interven-
tions, may not be sufficient or they may not
occur. Always be ready to intervene.
@) Tips
— Due to the system limitations when detect-
ing the surrounding area, the systems may
warn or intervene unexpectedly or too late
in certain situations. The assist systems may
also interpret a driving maneuver incorrectly
and then warn the driver unexpectedly.


— The systems may not function as expected
in unusual driving situations, such as driving
offroad, on unpaved roads, on loose ground,
on inclines, or on grooves in the road.
— The systems may not function correctly in
unclear traffic situations, such as turning
lanes, exit ramps, construction zones, rises
or dips that obstruct visibility, intersections,
toll stations, or city traffic.
— The detection of the surrounding area can
be limited, for example by vehicles driving
ahead or by rain, snow, heavy spray, or light
shining into the camera.
—In trailer mode, some assist systems may be
limited, may not react as usual, or may be
unavailable. Please refer to the instructions
for trailer towing in > page 124.
— If accessories have been mounted on the
steering wheel, the ability for the steering
systems to react may be limited.
127

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Driver assistance

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

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


() Note
Before driving downhill a long distance ona
steep hill, decrease your speed and use the
braking effect of recuperation > page 92. This
reduces the load on the brakes.
@) Tips
The brake lights turn on when the brakes are
applied automatically.
Switching the system on
Applies to: vehicles with cruise control system

BFV-0220



Fig. 102 Operating lever: Switching the system on
Requirement: the ignition must be switched on.
> To switch the system on, pull the lever toward
you to position ©.
The Gia or i$) indicator light and the corre-
sponding message will appear in the instrument
cluster.

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


estate Rem lad lite: Rag ena)
speed
Applies to: vehicles with cruise control system
When the vehicle is stationary, you can preselect
the cruise control speed or activate the speed
while driving.
Requirement: the system must be switched on.
> To preselect a cruise control speed when the ve-
hicle is stationary, tap the lever toward @)/G)
=> page 139, fig. 102.
> To activate the cruise control speed, pull the
lever
toward position @ while driving.
> To set the current driving speed as the cruise
control speed, press the button @) on the lever.
The active cruise control speed is indicated with
the Gg or kl indicator light in the instrument
cluster. >
139