2021 AUDI E-TRON Booster

Driving

Driving
Starting the vehicle
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Fig. 79 Center console: switching on the drive system
Your vehicle is powered by electricity. Similar to a
vehicle with a combustion engine, the ignition
and drive system can be switched on separately.
When only the ignition is switched on, electronic
systems such as the MMI are available. However,
the vehicle is not ready to drive. Electric power is
able to move the vehicle once the drive system is
switched on and becomes active.
Requirement: the key must be in the vehicle.
Switching the drive system on
> Press and hold the brake pedal.
> Press the [START STOP] button. The drive sys-
tem switches on.


It is indicated in the power meter whether the
drive system is switched on > page 13.
Switching the drive system off
> Bring the vehicle to a full stop.
> Press the [START STOP] button. The drive sys-
tem switches off.


The steering is locked when you switch off the
drive
system in “P” and open the driver's door.
The steering lock helps prevent vehicle theft.
Switching the drive system off in an
emergency
If necessary in an emergency, the drive system
can also be switched off while driving using the
emergency off function*.
90

> Press the [START STOP] button twice in a row or
press and hold it one time.

Switching on and off
If you would like to switch the ignition on or off
without switching on the drive system, follow
these steps:

> Press the [START STOP] button without pressing
the brake pedal.

Switching the ignition off automatically
To prevent the vehicle battery from draining, the
ignition and possibly the exterior lighting may
switch off automatically.
Requirements:
— You must have driven the vehicle.
— You must have left the vehicle for longer than
30 seconds.
— The ignition must be switched on.
Among other indicators, the system detects that
you have left the vehicle based on the following
factors:
— The driver's door has been opened.
— The driver's safety belt has been unbuckled.
— The brake pedal is not being pressed.
— The driver's seat is not occupied.
The ignition will also be switched off after 30 mi-
nutes or if you lock the vehicle from the outside.

ZA WARNING
— Never switch off the drive system before the
vehicle has come to a complete stop.
Switching it off before the vehicle has stop-
ped may impair the function of the brake
booster and power steering. You would then
need to use more force to steer and brake
the vehicle. The fact that you cannot steer
and brake as usual may increase the risk of
accidents and serious injuries.
— Secure the vehicle against rolling before ex-
iting the vehicle > page 91. >

Driving

the brake booster is not working, you have to use
much more force when braking the vehicle.
Do not continue driving. See an authorized Audi
dealer or authorized Audi Service Facility for as-
sistance. Read and follow the other safety pre-
cautions > A\.
Ga / @ Brake pads: wear limit reached. You
can continue driving. Please contact Service
The brake pads are worn. Drive to an authorized
Audi dealer or authorized Audi Service Facility as
soon as possible to have the malfunction correct-
ed.
Brake booster: limited functionality. You can
continue driving. Please contact Service
There is a brake booster malfunction. The brake
booster is available, but its effectiveness is re-
duced. The braking performance may be different
compared to the usual performance. Drive to an
authorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
Other indicator lights
When you switch the ignition on, the BRING / @)
indicator light turns on briefly to check the func-
tion. If the indicator light does not turn on, there
is a system malfunction.
1f RG / @ stays on, there is a malfunction in
the brake system.
- Ahigh load was placed on the brakes from
driving downhill for a long period of time. Follow
the instructions in the message to utilize the en-
gine braking effect and to relieve the brakes.

Z\ WARNING
If a malfunction occurs in the ABS, ESC, and
braking distribution, interventions that stabi-
lize the vehicle will no longer be available.
This could cause the vehicle to swerve, which
increases the risk that the vehicle will slide.
Do not continue driving. See an authorized
Audi dealer or authorized Audi Service Facility

for assistance.

98
Electromechanical
parking brake
Operating the parking brake
The electromechanical parking brake is used to
secure the vehicle from rolling away unintention-
ally.
The @) switch is located under the selector lever
in the center console. It turns on when the park-
ing brake is set. You can release the parking brake
manually or automatically when you start to
drive.
Setting and releasing the parking brake
> Setting: pull the ©) switch.
> 1f i ii ® appears, the parking brake is hold-
ing the vehicle. You can remove your foot from
the brake pedal.
> Releasing: when the ignition is switched on,
press and hold the brake pedal and press the
button.
If the red indicator light flashes, the braking
force has not built up enough or it has decreased.
You can also secure the vehicle by selecting the
“P” gear or pressing the brake pedal. Make sure
the indicator light is off before you start driving.
Automatically releasing the parking brake
when starting to drive
Requirement: the driver's door must be closed
and the driver’s safety belt must be fastened.
> Press the accelerator pedal to start to drive.

ZA WARNING
—To reduce the risk of an accident, always
make sure the vehicle is situated safely
while stationary.
— If the parking brake is set, it can release au-
tomatically when the accelerator pedal is
pressed. To reduce the risk of an accident,
do not inadvertently press the accelerator
pedal and always shift into “P” when the ve-
hicle is stopped.
— If the power supply fails, you cannot set the
parking brake once it is released, or release
it if it is set. Secure the vehicle against >

4KE012721BF
Telephone

Disconnecting a mobile device
Applies to: vehicles with telephone
> To disconnect a Bluetooth device from the MMI,
use the Connected devices menu > page 230.
Using the Audi phone
box
General information
Applies to: vehicles with Audi phone box

3
3 g ie


Fig. 128 Storage compartment in the center console: Audi
phone box with holder and connections
Depending on vehicle equipment, you may be
able to use the following functions with the Audi
phone box:
— Make phone calls using the vehicle’s exterior
antenna
— Charge a mobile device using the USB input
— Charge a mobile device wirelessly
— Reminder signal
Limitations
In some situations, the functions of the Audi
phone box may be limited or temporarily unavail-
able. For example, this may happen if
— There is one more than mobile device in the
Audi phone box
— The mobile device is located in a bag or a pro-
tective case
— There are objects between the Audi phone box
and the mobile device
— The mobile device is not positioned in the cen-
ter of the Audi phone box


maneuvers, which increases the risk of an ac-
cident. Store objects securely while driving.



ZA\ WARNING
Loose objects can be thrown around the vehi-
cle interior during sudden driving or braking

CG) Note
Applicable to U.S.A.
Operation of the Audi phone box is subject to
the following requirements of the Federal
Communications Commission:
— This is a CONSUMER device.
— BEFORE USE, you MUST REGISTER THIS DE-
VICE with your wireless provider and have
your provider’s consent. Most wireless pro-
viders consent to the use of signal boosters.
Some providers may not consent to the use
of this device on their network. If you are
unsure, contact your service provider.
— You MUST operate this device with approved
antennas and cables as specified by the
manufacturer. Antennas MUST be installed
at least 20 cm (8 inches) from any person.
— You MUST cease operating this device im-
mediately if requested by the FCC or a li-
censed wireless service provider.
— WARNING: E911 location information may
not be provided or may be inaccurate for
calls served by using this device.
@) Note
Applicable to Canada
In Canada, operation of a Zone Enhancer,
such as an Audi phone box, is subject to the
following requirements of the Innovation,
Science and Economic Development Canada
(ISED):
— This is a CONSUMER device.
— BEFORE USE, you MUST meet all require-
ments set out in CPC-2-1-05. At the time of
printing this user manual, the CPC-2-1-05
client procedures circular of ISED Canada
was available at the following web page:
http://www.ic.gc.ca/eic/site/smt-gst.
nsf/eng/sf08942.html.
— You MUST operate this device with approved
antennas
and cables as specified by the
manufacturer. Antennas MUST NOT be in-
stalled within 20 cm of any person.
177

4KE012721BF
Emergency assistance

— When the parking lock is engaged, neither
the front nor rear axle may be lowered or
raised more than 10. The driveshafts or
tires could be seriously damaged.
— Towing must not be used to charge the
high-voltage battery (recuperation), be-
cause this could result in major damages to
the tow vehicle or the vehicle being towed.
— The vehicle must not be tow started for
technical reasons.
G) Tips
— Switch Audi pre sense* off > page 160 when
loading the vehicle onto a vehicle carrier,
train, ship, or other type of transportation,
or when towing the vehicle. This can prevent
an undesired intervention from the pre
sense* system.
— Follow the local legal regulations for tow-
ing.
Read and follow the important information under
=> page 274.
Preparations
> Only secure the towing cable or tow bar at the
designated towing loops > page 275,
=> page 276.
> Make sure the towing cable is not twisted. Oth-
erwise it could disconnect from the towing loop
while towing.
> Switch the emergency flashers on in both
vehicles > page 50. However, do not do this if it
prohibited by law.
Towing vehicle (front)
> Only start to drive when the towing cable is
taut.
> Press the brake pedal very carefully.
> Avoid sudden braking or driving maneuvers.
Vehicle being towed (rear)
> Make sure the ignition is switched on so that
the steering wheel is not locked and so that you
can use the turn signals, the horn, and the
windshield wipers if needed > A\.

> Switching it off before the vehicle has stopped
may impair the function of the brake booster
and power steering. You would then need to
use more force to steer and brake the vehicle.
> Release the parking brake > page 98.
> Select the “N” selector lever position.
>» Switch the ESC off to avoid error messages
=> page 106.
> Make sure the towing cable is always taut.

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

t towing loop


Fig. 170 Front bumper: installing the towing loop
The threaded opening for the towing loop is lo-
cated on the right side of the front bumper.
> Remove the towing loop from the vehicle tool
kit > page 267.
> Press the cap inward with brief, strong pressure
=> fig. 170. The cap will loosen from the bump-
er.
> Tighten the towing eye as far as it will go into
the mount. Use a suitable object to tighten the
towing eye completely and securely in the
mount.
» After using, place the towing loop back in the
vehicle tool kit. >
275