2021 AUDI Q2 battery

Driving

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Starting the engine after
a malfunction

Applies
to: vehicles with convenience key
If the remote control key battery is exhausted or
if radio interference
or
a system malfunction oc­
curs, extra steps may be necessary in order to
start the engine.

Fig.
71 Steering column/remote control key: Starting the

engine
after a malfunction
If the message
D
Key not recognised. See
own­

er's manual or
|3
Remote control key: hold
back of key against marked area. See owner's
manual is displayed, you can still start the en­
gine manually.

•
Manual gearbox: Press the clutch
pedal

• Automatic gearbox: Press the brake pedal.

•
Hold the remote control key against the symbol

fJ)
^>Fig.
71, as shown in the illustration.
• Press the ISTART ENGINE
STOPl
button
^ A in

Starting the engine on page 76. The engine
shouLd start.

•
Drive to a qualified workshop soon and have the
fault rectified.
Note
You can call up the driver message again by
pressing the ISTART ENGINE STOP| button.
Start/stop system
Description

Applies
to: vehicles with start/stop system
The start/stop system can help to save fuel and
reduce
CO2
emissions.

1)
May vary in different countries
In start/stop mode, the engine is switched off
automatically when the vehicle stops, e.g. at
traffic lights. The ignition remains on during this
stop phase. The engine is automatically started
on demand.
The start/stop system is automatically activated
each
time
you switch on the ignition.
Basic conditions for start/stop mode
- The driver's door must be closed.
- The driver's seat belt must be buckled.
- The bonnet must be closed.
- The vehicle must have been moving at over 3
km/h since the Last stop.
CAUTION
Always switch off the start/stop system

^>page
81 before driving through water.
©
The engine is switched
off1)
shortly before the
vehicle comes to a stop. However, the brake
servo and power steering remain fully opera­

tional.

Stopping/starting the engine

Applies
to: vehicles with start/stop system

START
(M
STOP

S

Fig.
72 Instrument cluster: Engine switched off (stop

phase)

Applies
to: vehicles with manual gearbox

•
When the vehicle stops, put the gear Lever in
neutral and
take your
foot
off
the clutch pedal.
The engine will switch off. An indicator lamp

I
will light up in the instrument cluster •
79

Driving
display.
The rev
counter needle will also move

to
the
READY position.

•
The engine will start again automatically when
you press
the
clutch pedal.
The
indicator lamp
will
go out.

Applies to: vehicles with automatic gearbox

•
Brake
the
vehicle
to a
stop.
The
engine will
be

switched
off
shortly before
the
vehicle comes
to
a
standstill
or
when
the
vehicle
is
station-

aryx).
Keep your foot
on the
brake pedal.
The

indicator
lamp
@/
@
will appear
on the
dis­
play.
The rev
counter needle will also move
to

the READY position.

•
The engine will start again automatically when
you take your foot
off
the brake pedal.
If the

parking brake
is
applied
or
hold assist*
is

switched on,
the
engine will only restart when
you press
the
accelerator pedal1).
The
indicator
lamp
will
go out.

Further information
for
automatic gearboxes
The engine will stop
if
the selector lever
is in po­

sition
P, N or D.

The engine will start again
if
you move
the
selec­
tor lever
to
R during
a
stop phase.
If you
do not
want
the
engine
to
start when mov­
ing
the
selector Lever through
R,
move
the
lever
to P quickly.
You
can
control whether
or not the
engine
is

switched
off by
varying
the
amount
of
pressure
on
the
brake pedal.
For
instance,
if
you brake
gently
in
stop-and-go traffic
or
before turning
off

at a junction,
the
engine will remain
on
while
the

vehicle
is at
a standstill.
As
soon as you press
the

brake pedal harder,
the
engine will
be
switched

off.

be switched
off. The rev
counter needle will
move
to the
OFF position.
- Keep your foot
on the
brake pedal during
a

stop phase
to
prevent
the
vehicle from mov­

ing.

-
If you press the
ISTART ENGINE STOP|
but­

ton*
during
a
stop phase,
the
ignition will
Note
Applies to: vehicles with manual gearbox
If the engine stalls, you
can
start
it
again
di­

rectly
by
pressing
the
clutch pedal immedi­
ately.
General notes
Applies to: vehicles with start/stop system
Engine does
not
switch
off

The system checks that certain conditions
are

met before
and
during each stop phase.
If
the
in­

dicator lamp
Ey
appears
on the
instrument clus­
ter display,
the
engine will
not be
switched
off in

the following situations:
- The engine
has
not
yet
reached
the
minimum
temperature required
for
start/stop mode.
- The interior temperature selected
on the air

conditioner*
has
not
yet
been reached.
- The exterior temperature
is
very high/low.
- The windscreen
is
being defrosted
W.

-The parking
aid*
is
switched
on.

- The vehicle battery charge
is too low.

- The steering wheel
is
close
to
full lock
or the

vehicle
is
being steered.
- Reverse gear has just been selected.
- The vehicle
is on a
steep gradient.
-At high altitudes.
Engine cuts
in
again automatically
The stop phase
is
interrupted
in the
following sit­
uations,
for
example.
The
engine cuts
in
auto­
matically without intervention from
the
driver.
- The vehicle starts
to
roll (e.g.
on a
hiLl).

- The interior temperature deviates from
the air

conditioner setting.
- The windscreen
is
being defrosted
*$?.

- The brake pedal
is
pressed several times
in
suc­

cession.

- The vehicle battery charge drops
to an
insuffi­
cient level.

1'
May vary in different countries
80

Driving
- The power consumption is
high.

The engine switches off again when the condi­
tions for start/stop mode are once again
fulfil­

led1).

Ignition is switched off automatically
To prevent the vehicle battery from being dis­

charged,
the ignition will be switched off auto­
matically if certain conditions are met. For in­
stance:
- The start/stop system has switched off the en­

gine.

- The vehicle is stationary.
- The driver has left the vehicle.
If the dipped beam headlights are switched on in
this case, the side lights will be turned on in­

stead.
After approx. 30 minutes, or when you
lock the vehicle, the side Lights will be switched

off.

If the start/stop system has not stopped the en­
gine or if
you
have switched off the start/stop
system manually, the engine will continue
run­

ning and the ignition will not be switched off au­
tomatically
^A-

A WARNING
Never run the engine in confined spaces. The
exhaust gases are toxic - risk of poisoning!
© Note
If
you
select
D
or
N
after selecting reverse
gear on a vehicle with automatic gearbox, the
car must have been moving at over 10 km/h
before the system can switch off the engine

again.

Switching the start/stop system on/off
manually
Applies to: vehicles with start/stop system

You
can switch the system off manually if you
don't want to use it.
_.

rA^OFF

un
S
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>
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Fig.
73 Centre console: Switch for start/stop system

•
To switch the start/stop system off or on
man­

ually, press the
\OE1
button. The LED in the but­
ton will light up when the system is switched

off.

© Note
If
you
switch off the system during a stop

phase,
the engine will start again automati­
cally.
Driver messages in the instrument cluster
display
Applies to: vehicles with start/stop system

H
Automatic
start/stop
deactivated: Please re­
start engine manually
This message appears if certain conditions have
not been met during the stop phase and the
start/stop system cannot start the engine again
automatically. In this case, the engine must be
started manually.

2]
Automatic
start/stop:
system fault! Func­
tion unavailable
There is a malfunction in the start/stop system.
Drive to a workshop soon and have the fault
recti­

fied.

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1)
May vary in different countries
81

Driver assist systems

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-The automatic brake application with in­
creasing brake force can be cancelled by ap­
plying the brakes yourself or by pressing the
accelerator firmly.
- In certain situations, a warning may be giv­
en by the rear cross-traffic assist even if
there is no traffic in the critical zone, for in­
stance when parking or manoeuvring the ve­
hicle in reverse.
- The rear cross-traffic assist is deactivated
automatically if you deactivate the
ESC.

-The rear cross-traffic assist is switched on/
off via the parking aid
^>page
134.
-The system is not available in towing mode.
Driver messages
Applies to: vehicles with Audi side assist
Should the side assist be deactivated automati­
cally, a driver message will appear in the instru­
ment cluster display.

O
Audi side assist: system fault!
The system cannot detect vehicles reliably and
will be deactivated. The sensors are out of align­
ment or defective. Have the system checked by a
qualified workshop soon.

O
Audi side assist: currently unavailable. No
sensor vision

O
Audi side assist: currently unavailable.
Sen­

sor view restricted due to surroundings. See
owner's manual
The radar sensors are blocked. The area in front
of the sensors must not be obstructed by bicycle

racks,
stickers, deposits or any other substances.
If necessary, clean the area in front of the
sen­

sors
^>page
128, Fig. 120.

O
Audi side assist: currently unavailable
The side assist is temporarily inoperative and
cannot be switched on (for instance if the battery
is not sufficiently charged).

O
Audi side assist: unavailable in towing mode

2
Audi side assist: unavailable in towing mode
The side assist function will be switched off auto­
matically after a short time when the electrical
connector for the trailer socket is plugged in on
vehicles with a factory-fitted towing bracket. If
the towing bracket is not factory-fitted the side
assist function may not be switched off automat­
ically. The side assist must not be used when
towing a trailer.

O Rear
parking aid: obstacle detection limited
The rear cross-traffic assist is not available. Ei­
ther the ESC is switched off or the radar sensors
may be obstructed by a bicycle rack, stickers,
leaves, snow or similar objects. Switch on the ESC
or, if necessary, clean the area in front of the
sen­

sors
<3page
128, Fig. 120. If this message re­
mains displayed, drive to a qualified workshop
soon and have the fault rectified.
Audi drive select
Introduction
Applies to: vehicles with Audi drive select
Audi drive select alLows you to use different set­
ups on your vehicle. The modes efficiency*, com­
fort, auto and dynamic allow the driver, for ex­

ample,
to change from a sporty mode to a more
comfortable one via the
&&
button in the centre
console or via the infotainment system. In
addi­

tion,
the individual* mode allows you to adapt
the vehicle set-up to
suit
your personal driving

style.
For example, you might choose to combine
a more dynamic engine set-up with a lighter
steering response.
Description
Applies to: vehicles with Audi drive select
The possible vehicle set-up in each mode de­
pends on which equipment is installed on your
vehicle. The engine and steering are basic parts
of your vehicle which are always included in the

set-up.

Engine and automatic gearbox*
The response of the engine and automatic
gear­

box* to accelerator pedal movements will be
more spontaneous or balanced, depending on
131

Intelligent technology
the standard tyres. Nevertheless, we still recom­
mend that winter tyres or all-season tyres should
be fitted on all four wheels when winter road
conditions are expected, mainly because this will
give a better braking response.
Snow chains
On roads where snow chains are mandatory, this
also applies to cars with four-wheel drive

Opcrge
309, Snow chains.
Replacing tyres
On vehicles with four-wheel drive, all four tyres
must have the same rolling circumference. Also
avoid using tyres with varying tread depths

tapage
305,
New wheels or tyres.
Off-roader?
Some models do not have enough ground clear­
ance to be used on rough tracks and uneven ter­

rain,
so it is best to avoid off-road driving.
A WARNING
- Even with four-wheel drive, you should al­
ways adjust your speed to suit the condi­

tions.
Do not let the extra safety provided
tempt you into taking any risks when driving
- this can cause accidents.
- The braking ability of your car is limited by
the grip of the tyres. In this respect, your
car is no different from a car without four-
wheel drive. So do not be tempted to drive
too fast on icy or slippery roads just because
the car still has good acceleration in these
conditions - risk of accident!
- On wet roads bear in mind that the front
wheels may start to "aquaplane" and lose
contact with the road if the car is driven too
fast. If this should happen, there will be no
sudden increase in engine speed to warn the
driver, as with a front-wheel drive car. So do
not drive too fast in the wet: adjust your
speed to suit the conditions (accident risk).

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Power management
This system helps to ensure reliable
starting

The
power management controls the distribu­
tion of electrical energy and thus helps to ensure
that there is always enough power available to
start the engine.
If
a
vehicle with a conventional electrical system
is left parked for
a
long time, the vehicle battery
will gradually lose its charge because certain
electrical equipment (such as the immobiliser)
continues to draw current even when the ignition
is off. In some cases there may not be enough
power available to start the engine.
Your vehicLe is equipped with an intelligent pow­
er management system to control the distribu­
tion of electrical energy. This significantly im­
proves reliability when starting the engine, and
also prolongs the life of the vehicle battery.
The main functions incorporated in the power
management system are battery diagnosis, re­
sidual current management and dynamic power
management.
Battery diagnosis
The battery diagnosis function constantly regis­
ters the condition of the vehicle battery. Sensors
detect the battery voltage, battery current and
battery temperature. This enables the system to
calculate the current power level and charge
con­

dition of the vehicle battery.
Residual current management
The residual current management reduces power
consumption while the vehicle is parked. It
con­

trols the supply of power to the various electrical
components while the ignition is switched off.
The system takes the battery diagnosis data into
consideration.
Depending on the power Level of the vehicle bat­
tery, the individual electrical components are
switched off one after the other to prevent the
vehicle battery from losing too much charge and
to ensure that the engine can be started reliably. •
149

Intelligent technology
Dynamic power management
While the vehicle is moving, this function distrib­
utes the available power to the various electrical
components and systems according to their re­
quirements. It ensures that on-board systems do
not consume more electrical power than is being

generated,
and thus maintains the maximum
possible vehicle battery power level.
® Note
- The power management system is not able
to overcome the given physical limits.
Please remember that the power and life of
the vehicle battery are limited.
- If the indicator lamp
|3 ^page
31 appears,
the starting ability may be impaired.
Starting ability has first priority.
Short trips, city traffic and low temperatures all
place a heavy load on the vehicLe battery. In
these conditions a large amount of power is
con­

sumed,
but only
a
small amount is supplied. The
situation is also critical if electrical equipment is
in use when the engine is not running. In this
case power is consumed when none is being
gen­

erated.

In these situations you will be aware that the
power management system is intervening to
con­

trol the distribution of electrical power.
When the vehicle is parked for long periods
If
you
do not drive your vehicle for a period of
several days or weeks, the power management
will gradually shut off the on-board systems one
by one, or reduce the amount of current they are

using.
This limits the amount of power consumed
and helps to ensure reliable starting even after a
long period. Certain convenience features, such
as remote controL unlocking, may not be availa­

ble.
These functions will be restored when you
switch on the ignition and start the engine.
150
With the engine switched off
If
you
listen to the radio or use the other info­
tainment functions when the engine is not
run­

ning,
this will discharge the vehicle battery.
The infotainment display will show a warning
message before the battery power drops to a Lev­
el where the starting ability is impaired. This
message warns you that the system you are using
will soon be switched off automatically. You
should therefore start the engine if
you
wish to
continue using the system.
When the engine is running
Although the alternator generates electrical
power, the vehicle battery can still become dis­
charged while the vehicle is being driven. This can
occur when a lot of power is being consumed but
only
a
small amount supplied, especially if the
vehicle battery is not fully charged initially.
To restore the necessary energy balance, the sys­
tem
will
then temporarily shut off the electrical
components that are using a lot of power, or re­
duce the current they are consuming. Heating
systems in particular use a Large amount of elec­
trical power. If
you
notice, for instance, that the
seat heating* or the rear window heater is not

working,
they may have been temporarily switch­
ed off or regulated to a lower heat output. These
systems will be available again as soon as
suffi­

cient electrical power is available.
You may also notice that the engine runs at a
slightly faster idling speed. This is quite normal,
and no cause for concern. The increased idling
speed allows the alternator to meet the greater
power requirement and charge the vehicLe bat­
tery at the same time.
Information saved in the
control units
The vehicle is fitted in the factory with electronic
control units that, among other things, control
the engine and the gearbox. The controL units al­
so monitor the exhaust system and the airbags.
The control units continually analyse data rele­
vant to the vehicLe while you are driving. In the •

Multi Media Interface
emergency vehicles) clearly - failure to do so
could result in an accident.

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©
Note
If the engine is switched off and the vehicle
battery charge level is low, the MMI system
will be switched off automatically.
Infotainment display
Switching on/off
- To switch on/off manually: Press the
^
but­
ton
@ tapage
10, Fig. 2.
You can operate certain functions using the MMI
ON/OFF button with joystick function when the
MMI is switched on but the display is switched
off
o
page 152.
Notes on the illustrations of the displays

The
display type depends on the equipment
fit­

ted in your vehicle.
87.6 MHz

88./
MHz
90.0 MHz
96.6 MHz

Fig.
142 Display
type
A
87.6 MHz
88.7 MHz

ij
90.0 MHz

r
90.5 MHz
91.5 MHz
96.6 MHz

1

©^

1

FM

L 1

3
i
i

Fig.
143 Display type B
Additional content (e.g. album covers, maps)
may be shown on display type
B®
oF/'g.
143. As
the other content is almost identical for both dis­
play types, the illustrations in this Owner's
Man­

ual primarily show display type A, depending on
the topic.
How to use the MMI
Selecting and confirming a function
87.6 MHz
88.7 MHz
90.0 MHz
90.5 MHz
91.5 MHz
96.6 MHz

Fig.
144 How to use the rotary pushbutton
Selecting and confirming a function in a
menu/list
• To select a function: Turn the rotary pushbut­
ton®
^>Fig.
144 to the desired function (e.g.
setting a frequency).

•
To confirm the selection: Press the rotary
pushbutton
(T)
OFig.
144.
Returning to the previous function level

•
Press the
I
BACK
|
button
® *>page
152,
Fig. 140.
Calling up the main menu/menu

^w
J
x,.
•'.w
•^£j: •

V."

.
F

Fig.
145
Illustrât

E/Car

(TM
Sound

^%
\
* VlKadiol •
*
M
J
Q
Mfedia

II
Telephone

on:
Main menu
• •

.

153

Multi Media Interface
©
©

©

©
©
©
©
©
©

@
@

©

©
©
©
©

Symbol/
marking
Signal strength bars for
telephone
Exclamation mark on the
telephone
Signal strength bars for
data connection*
2C/3C/LTE*
Mute function
Roaming
Import procedure
Options menu*

Bluetooth*

Scrolling bar
Entry field
MMI touch*
Rotary control
Checkbox
Selection list
Battery*
Description
Reception strength for the telephone
Indicates missed calls
Reception strength of the active connection, or

PIN:
Enter
the
SIM PIN code
PUK:
Enter
the PUK code

SIM:
Insert
the
SIM card
Network coverage of the active connection
^>page
203

2G:
GSM
network

3G:
UMTS network

LTE*:
LTE network
Audio source muted
^>page
261
Connected mobile
phone/SIM
card inserted in SIM card reader* or
embedded SIM card has left its mobile network
Import/update of contacts in the directory/call list
Select and confirm specific functions for individual menu items and
make changes to settings.
Bluetooth device connected
•=>page 2371'•=>page
173
Signifies a long list.
You can move within lists by turning the rotary pushbutton
Entries that can be changed using the speller for letters/numbers

^page
159 or the MMI touch
pad*
^page
155
Can be used via the MMI touch pad
Settings for the selected function can be made by turning the rotary
pushbutton
You can switch certain functions on
(vf
or off
•
by pressing the ro­
tary pushbutton.
Settings for the selected function that can be called up by pressing
the rotary pushbutton
Battery charge level of the connected mobile phone during wireless
charging
162