2020 AUDI E-TRON wheel size

Voice recognition system

Voice recognition system
General information
Applies to: vehicles with voice recognition system
You can operate many functions in the vehicle
easily using voice commands.
Using the voice recognition system optimally
> Speak clearly and distinctly at a normal volume.
Speak louder when driving faster.
> Emphasize the words in the commands evenly
and do not leave long pauses.
> Close the doors, the windows, and the sunroof*
to reduce background noise. Make sure that
passengers are not speaking when you are giv-
ing a voice command.
> Do not direct the vents toward the hands-free
microphone, which is in the roof headliner near
the front interior lights.
> Only the driver should speak to the system, be-
cause the handsfree microphone is aimed to-
ward this seating position.

ZA\ WARNING
— Direct your full attention to driving. As the
driver, you have complete responsibility for
safety in traffic. Only use the functions in
such a way that you always maintain com-
plete control over your vehicle in all traffic
situations.
— Do not use the voice recognition system in
emergencies because your voice may change
in stressful situations. The system may take
longer to dial the number or may not be
able to dial it at all. Dial the emergency
number manually.

G) Tips
There are no voice guidance* prompts when a
dialog is active.
24
Operating
Applies to: vehicles with voice recognition system
See
Dat)
Where is a
Connect
Diala
coy
Es
ea
cog

Fig. 19 Upper display: voice recognition system
Switching the voice recognition system on or
off
Requirement: the ignition and the MMI must be
switched on. A system language supported by
the voice recognition system must be set. There
must be no phone calls in progress and the park-
ing aid must not be active.
> To switch the voice recognition system on,
briefly press the «€ button on the multifunction
steering wheel, or depending on the context,
press wt in the upper display.
> To switch the voice recognition system off,
press and hold the « button on the multifunc-
tion steering wheel, or say or press Cancel (4).
Using the voice recognition system
In the voice recognition system menu, possible
commands or help settings are displayed for the
current dialog @).
> Say the desired command after the signal tone.
> To receive additional help for the current dia-
log, say or press Help (2).
> To pause voice recognition, say or press Pause
@. To reactivate voice recognition, press ()
again or briefly press the «€ button on the mul-
tifunction steering wheel.
> Applies to: MMI: Select on the home screen:
SETTINGS > General > (Speech dialog system)
> Allow commands during voice output. If the
function is switched on, you can simply say a
new command during a prompt.
Activating the online recognizer
Applies to: vehicles with online recognizer
You can activate the online recognizer for addi-
tional functions and to improve the results of >

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Driving dynamic

Selective wheel torque control
Selective wheel torque control is used when driv-
ing on curves. Braking is targeted toward the
wheels on the inside of the curve as needed. This
allows more precise driving in curves.
Power steering
The ESC can also support vehicle stability
through steering.

ZA WARNING
—The ESC and its integrated systems cannot
overcome the limits imposed by natural
physical laws. This is especially important on
slippery or wet roads. If the systems begin
acting to stabilize your vehicle, you should
immediately alter your speed to match the
road and traffic conditions. Do not let the in-
creased safety provided tempt you into tak-
ing risks. This could increase your risk of a
collision.
— Please note the risk of a collision increases
when driving fast, especially through curves
and on slippery or wet roads, and when driv-
ing too close to objects ahead. There is still
a risk of accidents because the ESC and its
integrated systems cannot always prevent
collisions.
— Accelerate carefully when driving on
smooth, slippery surfaces such as ice and
snow. The drive wheels can spin even when
these control systems are installed and this
can affect driving stability and increase the
risk of a collision.
— As the vehicle load increases, especially the
roof load, the vehicle's center of gravity also
increases along with the risk of the vehicle
tipping. To reduce the risk of an accident, al-
ways adapt your driving style to the current
conditions and avoid sudden driving maneu-
vers.

@) Tips
— The ABS and ASR only function correctly
when all four wheels have a similar wear
condition. Different tire sizes can lead toa
reduction in motor power.
— You may hear noises when the systems de-
scribed are working.
The 0 button for controlling the ESC is located
in the center console, in front of the selector lev-
er. The ESC is automatically switched on when
the ignition is switched on.
Limiting ESC
In some situations, it may make sense to limit
the stabilizing function of the ESC so that the
wheels can spin, for example to rock a vehicle to
free it when it is stuck or to drive with snow
chains. The ESC can also be limited to provide
more sporty driving characteristics with fewer
stabilizing corrective actions.
—To limit the ESC, press the So button briefly.
The B indicator light turns on.
— To completely reactivate the ESC stabilization
function, press the button again. The indicator
light turns off.
Depending on the Audi drive select mode that is
selected, one of the following ESC modes will be
selected automatically:
— sport - this mode is designed for driving ona
level surface. It is used in all Audi drive select
modes except offroad.
— offroad - this mode is suited for driving offroad
and is designed for uneven terrain or loose
ground. If you select the offroad Audi drive se-
lect mode, the offroad ESC mode will be auto-
matically used.
Switching off ESC
For a more active control of the vehicle where the
stabilizing functions of the ESC cannot intervene,
the ESC can be switched off.
—To switch off the ESC, press and hold the Sor
button for more than three seconds. The B
and aa indicator lights turn on.
— To completely reactivate the ESC stabilization
function, press the button again. The indicator
lights turn off.
105
>

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Wheels

Tire designations

B8K-2316


Fig. 161 Tire designations on the side-
wall
@ Tires for passenger vehicles
(if applicable)
“P” indicates a tire for a passen-
ger vehicle. “T” indicates a tire
designated for temporary use.
@ Nominal width
Nominal width of the tire be-
tween the sidewalls in millime-
ters. In general: the larger the
number, the wider the tire.
@) Aspect ratio
Height/width ratio expressed as a
percentage.
@ Tire construction
“R” indicates a radial tire.
©) Rim diameter
Size of the rim diameter in inches.
© Load index and speed rating
The load index indicates the tire's
load-carrying capacity.
The speed rating indicates the
maximum permitted speed. Also
see > A in General information on
page 248.
“EXTRA LOAD”, “xl” or “RF” indi-
cates that the tire is reinforced or
is an Extra Load tire.






Speed rat- /Maximum permitted speed
ing
P up to 93 mph (150 km/h)
Q up to 99 mph (160 km/h)
R up to 106 mph (170 km/h)
S up to 110 mph (180 km/h)
T up to 118 mph (190 km/h)
U up to 124 mph (200 km/h)
H up to 130 mph (210 km/h)
Vv up to 149 mph (240 km/h)?
Zz above 149 mph (240 km/h)?)
w up to 168 mph (270 km/h)?
y up to 186 mph (300 km/h)?

a) For tires above 149 mph (240 km/h),
tire manufacturers sometimes use the
code “ZR”.
249

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Wheels

Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto-
matic transmission, power steer-
ing, power brakes, power win-
dows, power seats, radio, and
heater, to the extent that these
items are available as factory-in-
stalled equipment (whether in-
stalled or not).
Aspect ratio
means the ratio of the height to
the width of the tire in percent.
Numbers of 55 or lower indicate a
low sidewall for improved steer-
ing response and better overall
handling on dry pavement.
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim.
Bead separation
means a breakdown of the bond
between components in the bead.
Cord
means the strands forming the
plies in the tire.
Cold tire inflation pressure
means the tire pressure recom-
mended by the vehicle manufac-
turer for a tire of a designated
size that has not been driven for
more than a couple of miles (kilo-
meters) at low speeds in the three
hour period before the tire pres-
sure is measured or adjusted.
Curb weight
means the weight of a motor ve-
hicle with standard equipment in-
cluding the maximum capacity of
fuel, oil, and coolant, air condi-
tioning and additional weight of
optional equipment.
Extra load tire
means a tire designed to operate
at higher loads and at higher in-
flation pressures than the corre-
sponding standard tire. Extra load
tires may be identified as “XL”,
“xl”, “EXTRA LOAD”, or “RF” on
the sidewall.
251

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Wheels

Production options weight
means the combined weight of
those installed regular production
options weighing over 5 lbs.
(2.3 kg) in excess of those stand-
ard items which they replace, not
previously considered in curb
weight or accessory weight, in-
cluding heavy duty brakes, ride
levelers, roof rack, heavy duty
battery, and special trim.
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the
beads are laid at substantially
90 degrees to the centerline of
the tread.
Recommended inflation
pressure
see > page 251, Cold tire infla-
tion pressure.
Reinforced tire
means a tire designed to operate
at higher loads and at higher in-
flation pressures than the corre-
sponding standard tire. Rein-
forced tires may be identified as
“XL”, “xl”, “EXTRA LOAD”, or “RF”
on the sidewall.
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim diameter
means nominal diameter of the
bead seat. If you change your
wheel size, you will have to pur-
chase new tires to match the new
rim diameter.
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between
rim flanges.
Sidewall
means that portion of a tire be-
tween the tread and bead.
Speed rating (letter code)
means the speed at which a tire is
designed to be driven for extend-
ed periods of time. The ratings
range from 93 mph (150 km/h)
to 186 mph (298 km/h) > table
on page 249. You may not find
this information on all tires be-
cause it is not required by law.
The speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the >
253

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Wheels

by the tire manufacturer. This in-
formation is used to contact con-
sumers if a tire defect requires a
recall.
Vehicle capacity weight
means the rated cargo and lug-
gage load plus 150 lbs. (68 kilo-
grams) times the vehicle's desig-
nated seating capacity.
Vehicle maximum load on the
tire
means that load on an individual
tire that is determined by distrib-
uting to each axle its share of the
maximum loaded vehicle weight
and dividing by two.
Vehicle normal load on the tire
means that load on an individual
tire that is determined by distrib-
uting to each axle its share of the
curb weight, accessory weight,
and normal occupant weight (dis-
tributed in accordance with > ta-
ble on page 260) and dividing by
two.
Occupant loading and distri-
bution for vehicle normal load
for various designated seating
capacities
Refer to the tire inflation pressure
label > page 258, fig. 164 for the
number of seating positions. Re-
fer to the table > table on
page 260 for the number of peo-
ple that correspond to the vehicle
normal load.
New tires or wheels
Audi recommends having all work
on tires or wheels performed by
an authorized Audi dealer or au-
thorized Audi Service Facility.
These facilities have the proper
knowledge and are equipped with
the required tools and replace-
ment parts.
>New tires do not yet have the
optimal gripping properties.
Drive carefully and at moderate
speeds for the first 350 miles
(500 km) with new tires.
> Only use tires with the same de-
sign, size (rolling circumfer-
ence), and as close to the same
tread pattern as possible on all
four wheels.
>Do not replace tires individually.
At least replace both tires on the
same axle at the same time.
> Audi recommends that you use
Audi Original Tires. If you would
like to use different tires, please
note that the tires may perform >
255

Wheels

differently even if they are the
same size > A.
>If you would like to equip your
vehicle with a tire and rim com-
bination that is different from
what was installed at the facto-
ry, consult with an authorized
Audi dealer or authorized Audi
Service Facility before making a
purchase > A.
Because the spare tire” is differ-
ent from the regular tires instal-
led on the vehicle (such as winter
tires or wide tires), only use the
spare tire* temporarily in case of
emergency and drive carefully
while it is in use. It should be re-
placed with a regular tire as soon
as possible.
All four wheels must be equipped
with tires that are the same brand
and have the same construction
and tread pattern so that the
drive system is not damaged by
different tire speeds. For this rea-
son, in case of emergency, only
use a Spare tire* that is the same
circumference as the regular tires.


Z\ WARNING
—Do not use steel rims that are
17 inches or larger. Otherwise,

256

damage to the vehicle and an
accident could result.
—Only use tire/rim combina-
tions and suitable wheel bolts
that have been approved by
Audi. Otherwise, damage to
the vehicle and an accident
could result.
—For technical reasons, it is not
possible to use tires from oth-
er vehicles. In some cases, you
cannot even use tires from the
same vehicle model.
—Make sure that the tires you
select have enough clearance
to the vehicle. Replacement
tires should not be chosen
simply based on the nominal
size, because tires with a dif-
ferent construction can differ
greatly even if they are the
same size. If there is not
enough clearance, the tires or
the vehicle can be damaged
and this can reduce driving
safety and increase the risk of
an accident.
—Only use tires that are more
than six years old when abso-
lutely necessary and drive
carefully when doing so.
—Do not use run-flat tires on
your vehicle. Using them when

Wheels

install the tires from the rear axle
on the front axle and vice versa.
This will allow the tires to have
approximately the same length of
service life.
For unidirectional tires, make sure
the tires are installed according to
the running direction indicated on
the tire sidewall > page 279.
Hidden damage
Damage to tires and rims can of-
ten occur in locations that are hid-
den. Unusual vibrations in the ve-
hicle or pulling to one side may
indicate that there is tire damage.
Reduce your speed immediately.
Check the tires for damage. If no
damage is visible from the out-
side, drive slowly and carefully to
the nearest authorized Audi deal-
er or authorized Audi Service Fa-
cility to have the vehicle inspect-
ed.

Z\ WARNING
Tread that has worn too low or
uneven tread depths on the
tires can reduce driving safety.
This can increase the risk of an
accident because it has a nega-
tive effect on handling, driving

through curves, and braking,

258

and because it increases the
risk of hydroplaning when driv-
ing through deep puddles.


Tire pressure


B4H-0664
Fig. 163 Driver's side B-pillar: tire pres-
sure label


B8K-1151
‘SEATING CAPACITY TOTAL fot REAR
JOMBRE DE PLACES TOTAL AVANT ARRIERE
kg OF pm bs. ,
SIZE COLD TIRE PRESSURE
PRESSION DES PNEUS A FROID
a KPA, Ml PSI
a KPA, Ml PSI
Ha KPA, MM PSI
PNEU _| DIMENSIONS FRONT avant |
REAR ARRER |
‘SPARE
pe secours |






Fig. 164 Tire pressure label
The correct tire pressure for tires
installed at the factory is listed on
a label. The label is located on the
B-pillar > fig. 163, > fig. 164.
Use the tire pressure specified for
a normal vehicle load when the
vehicle is partially loaded > table
on page 260. If driving the vehi-
cle when fully loaded, you must
increase the tire pressure to the
maximum specified pressure > /A\. >