ECU AUDI E-TRON 2021 Service Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2021, Model line: E-TRON, Model: AUDI E-TRON 2021Pages: 308, PDF Size: 83.91 MB
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High-voltage system
Depending on the selected view > page 12, the
following information about the charging process
is displayed in the instrument cluster:
— Gv: range
—&: remaining charging time until the charging
process is complete
— 2): current battery charge level
—Q: date and time of when the charging process
was completed
—&: charging speed (additional range per hour)
—4: charging power (depends on the selected
power source)
To access the charging process information at a
later time, select in the instrument cluster: Vehi-
cle functions tab > EE] button > Charging.
Ending the charging process
You can interrupt the charging process at any
time.
— Unlock the vehicle. In vehicles with a conven-
ience key*, the convenience key only needs to
be near the charging port door.
— Press the center of the button @.
— Remove the charging connector. If the charging
connector is not removed within 30 seconds, it
will automatically relock and the charging proc-
ess may continue.
— After removing the charging connector, the
charging port door will close automatically;
otherwise, press on the center of the button @
to close the charging port door.
— Disconnect the charging cable from the power
supply if necessary or return it securely to the
charging station.
— Install the protective caps on the charging ca-
ble again.
—If you are transporting the charging cable in
the vehicle, store it securely > page 119.
If the charging connector cannot be disconnected
from the vehicle, perform the following steps in
the order listed and try again to disconnect the
charging connector:
— Switch the ignition on/off.
— Lock/unlock the vehicle.
— Make sure the auxiliary air conditioning is not
activated > page 87.
If the charging connector still cannot be discon-
nected, you must unlock it manually > page 116.
If you cannot disconnect the charging connector
from the charging station, authenticate yourself
again at the charging station and then try again
to disconnect the charging connector. If you still
cannot disconnect the charging connector from
the charging station, contact the charging sta-
tion operator.
Z\ WARNING
—When closing the charging port door, make
sure the area where the door is closing is
clear to reduce the risk of injury.
— Do not disconnect the charging cable from
the socket or the vehicle charging port while
the vehicle is charging. End the charging
process before removing the charging cable
from the socket in order to reduce the risk of
damaging the connector contacts from
sparks.
— Never drive with the charging port door
open. An open charging port door could hit
other road users, which increases the risk of
injury.
— Ifa charging unit is damaged, the vehicle
must not be charged at the damaged charg-
ing port or at the charging port on the other
side* to reduce the risk of injury.
— If the charging unit is damaged or the
charging port door cannot close or is miss-
ing, drive immediately to an authorized Audi
dealer or authorized Audi Service Facility
and have the malfunction corrected to re-
duce the risk of injury.
@) Note
— If you drive with the charging unit open,
both the charging port door and the elec-
tronics installed behind it could be dam-
aged. Check each time after charging if the
port door is locked before you start driving
the vehicle.
— Applies to: vehicles with charging ports on
the driver and front passenger’s side: Never
attempt to charge the vehicle using both
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High-voltage system
charging ports at the same time, because — Remove ice and snow in the charging unit
this could damage the charging equipment. using a hand brush and solvent-free deicing
Gy Tips
spray.
— The vehicle radio and TV systems may have
— If the parking brake is set, it could create limited reception when charging the vehicle.
noises when the charging connector is con-
nected.
Charging display
The charging display is an LED light on the charg- informs you about the various displays. The fol-
ing unit @) that indicates the charging status. A lowing table explains the displays.
label on the charging unit @) > page 112, fig. 84
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.
White Pulsing
Connection between the power source and the vehicle is being
established.
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 119. 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 120. 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.
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High-voltage system
Setting the timer
Introduction
By setting a timer, you determine when your vehi-
cle should reach the desired charging target.
When the timer is activated, it will be run regu-
larly at the set time. In addition to the charging
target, 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. The active timer is indi-
cated by the respective number in © in the upper
section of the display.
» Applies to: MMI: Select on the home screen:
VEHICLE > Charging & Efficiency > Charging.
> When the charging target is displayed, swipe
your finger on the display toward the left.
Configuring the timer
> To set a timer, select > in the line for the de-
sired timer.
> Select one ore more days of the week and select
Next.
» Set the desired departure time and select OK.
> To also activate the climate control with a tim-
er, select F.
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.
> To switch on timer charging, select ©. A col-
ored bar will turn on in the button.
If the set departure time for the timer is too
soon, the desired charging target may not be
reached.
G) Tips
It is not possible to charge using the timer at
some charging stations.
Advanced charging settings
With the advanced charging settings, you can de-
fine
addresses (locations) at which certain charg-
ing settings should apply (for example, charging
116
target, minimum charge). If your vehicle is in the
vicinity of a defined address, the advanced charg-
ing settings will be automatically applied. The
charging target that is set will be used both for
immediate charging and timer charging.
Managing the advanced charging settings
> Applies to: MMI: Select on the home screen:
VEHICLE > Charging & Efficiency > Charging >
<2} > Advanced charging settings.
> To define new settings for a certain address, se-
lect +. Follow the instructions in the display.
> To edit existing settings for a certain address,
press the respective button.
> To delete existing settings for a certain ad-
dress, select Z.
Charging with a preferred charging time
A preferred charging time is only used when tim-
er charging is switched on > page 116, Switching
on the timer and timer charging.
Incase of malfunction, you can manually release
the charging port door or the charging connec-
tor.
Fig. 85 Motor compartment: emergency release
Manually releasing the charging port door
> Open the hood = page 234.
> Open the cover in the motor compartment on
the side of the applicable charging port.
> Loosen the red loop @) > fig. 85 from the re-
tainer and then pull on the loop carefully >@.
> If necessary, open the charging port door by
hand.
> After releasing manually, secure the loop on
the retainer and close the cover.
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> Drive to an authorized Audi dealer or author-
ized Audi Service Facility immediately to have
the malfunction corrected.
Manually releasing the charging connector
If you are not able to pull the charging connector
out of the vehicle charging port, there may bea
malfunction. You must use the emergency re-
lease to release the vehicle charging connector.
Requirement: the “P” gear must be selected and
the vehicle must be unlocked.
> End the charging process > page 113.
> Open the hood = page 234.
> Open the cover in the motor compartment on
the side of the applicable charging port.
> Loosen the yellow loop @) fig. 85 from the re-
tainer and then pull on the loop carefully >@.
» Remove the charging connector.
> After releasing manually, secure the loop on
the retainer and close the cover.
> Drive to an authorized Audi dealer or author-
ized Audi Service Facility immediately to have
the malfunction corrected.
If the charging connector still cannot be removed
after using the emergency release, see an author-
ized Audi dealer or authorized Audi Service Facili-
ty for assistance.
@) Note
Only pull on the loop until you feel resistance.
You
will not hear it release. If you continue to
pull, you could damage the emergency re-
lease mechanism.
Messages
If the or BY indicator light turns on, then the
range is low or very low. Charge the high-voltage
battery.
Vehicle charging connection: malfunction!
See owner's manual
This message appears if the charging port door is
open while driving. Stop the vehicle as soon as
possible and try to close the charging port door
using the button @) & page 112, fig. 83 or by
hand. If the charging port door cannot close
and/or the message continues to appear, drive to
an authorized Audi dealer or authorized Audi
Service Facility immediately and have the mal-
function corrected > A\ in Charging on page 113;
=>@© in Charging on page 113.
EB Ac charging system: malfunction! Please
contact Service
B DC charging system: malfunction! Please
contact Service
This message appears if there is a malfunction in
the charging system. Drive to an authorized Audi
dealer or authorized Audi Service Facility immedi-
ately.
Incompatible charging system. Please check
charging system
This message appears when the charging system
is incompatible. Only charge using the Audi
charging system that is designed for your vehicle.
fa Charging system: malfunction
This message appears if there is a malfunction in
the vehicle charging infrastructure or the charg-
ing station. Use a different charging station. If
this message does not turn off, contact an au-
thorized Audi dealer or authorized Audi Service
Facility.
Charging equipment
Introduction
Depending on the vehicle equipment, the Audi e-
tron compact charging system may be available.
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.
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Always store the charging equipment securely
before transporting.
> Open the hood > page 234.
> Open the front storage compartment
=>page 79.
> Stow the charging equipment in the front stor-
age compartment.
> Close the front storage compartment and the
hood.
Audi e-tron compact charging system
Applies to: vehicles with Audi e-tron compact charging system
ZA\ 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.
RAZ-0604
o 9 3)
—{4)
[RAZ-0726]
Fig. 86 Audi e-tron compact charging system: components
(example)
Observe the safety precautions > page 110, Im-
portant safety precautions.
The Audi e-tron compact charging system can be
used for charging with 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 with power plug for industrial
sockets
The vehicle cable is securely connected to the
control unit. The power cable is plugged into the
Fig. 87 Audi e-tron compact charging system: control unit
upper end of the control unit and can be switched
=> page 124.
Control unit overview
© __ |On/Off button ®, charging power lev-
el and LED
© __ | Status LED:
a Power supply/household
connection
|Vehicle
0 Control panel
@ © |Reset
Charging
Note the instructions for charging > page 112.
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— 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 feet (7.5 m) in the USA. Audi recom-
mends using only cables approved by Audi.
@) 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 mo clip
Applies to: vehicles with wall mount clip
RAZ-0638,
Fig. 89 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.
> Push the control unit in the direction of the ar-
row toward the rear > fig. 89 and let it lock into
place.
> Wrap the excess length of cable around the
charging connector mount @ when you are not
charging the high-voltage battery.
> Plug the power cable into the socket (2).
> After charging, you can hook the vehicle charg-
ing connector to the charging connector mount
©.
Locking and unlocking the Audi charging
system
> You can lock or unlock the Audi charging sys-
tem using the key provided by turning it to the
lock position @) or the unlock position 6).
Removing the Audi charging system
> Remove the power cable connector from the
socket (2).
> Unwind the cable from the charging connector
mount (@).
> To loosen the control unit from the bracket,
push the locking mechanism @) upward.
ZX WARNING
Observe the safety precautions in the assem-
bly instructions for the wall mount clip.
125
Page 128 of 308
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.
ZA\ 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 modifications to 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.
ZA WARNING
— Never mount a "weight-distributing" or
"load-balancing" trailer coupler as the trailer
hitch. The vehicle was not designed for
these types of trailer hitches. The trailer
126
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 291.
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, Audi recommends always us-
ing
the maximum permitted tongue weight, but
do not exceed this weight. 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 291.
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.
— Distribute the load in the trailer so that the
heavy objects are as close to the axle as possi-
ble.
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Trailer towing
— 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 251. 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
Make sure that you can also observe the traffic
area behind the vehicle using the exterior mir-
rors, and use additional exterior mirrors if neces-
sary. Adjust the additional exterior mirrors so
that you have a sufficient visibility behind the ve-
hicle. Follow the local legal regulations for instal-
ling additional exterior mirrors.
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 102
must be selected before you adjust the tongue
weight on the trailer and hitch the trailer >@,
=> page 103.
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 trailer mode 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 connector to
the socket.
When using rear carrier systems that are mount-
ed directly 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 103.
You can also increase ground clearance by select-
ing the Audi drive select* offroad or allroad
modes > page 102.
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
Applies to: vehicles with air suspension
— 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.
@) Note
— Applies to: vehicles with air suspension: Se-
lect the Audi drive select* comfort mode.
127
Page 130 of 308
Trailer towing
Otherwise, the tongue load specified for
your vehicle will no longer be applicable.
— 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.
@) Tips
— Block the wheels with chocks when parking
on inclines if the trailer is loaded.
— Audi recommends having the vehicle in-
spected between the inspection intervals 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 94 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.
128
AN WARNING
Constant braking causes the brakes to over-
heat and can substantially reduce braking per-
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 130.
@ 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 by
using another user.
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 towing a trailer located in > page 126.
— The steering wheel touch recognition may
be limited when you wear gloves. Steering
intervention requests from the steering as-
sist systems may occur more frequently.
— If accessories have been mounted on the
steering wheel, the steering assist systems
may
be limited. The frequency of steering
129
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