2020 AUDI A3 overheating

8V2012721BK
Instrument cluster


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— Audi drive select mode ......... 91
ZA WARNING
Applies to: vehicles with Audi virtual cockpit
If there is a severe malfunction in the instru-
ment cluster, the display may turn off. The wa
indicator light may also turn on. Stop the ve-
hicle safely. See an authorized Audi dealer or

authorized Audi Service Facility for assistance.

@ Tips
— The following pages will primarily show il-
lustrations of the multi-color analog instru-
ment cluster*. The display and/or position
of the element shown may vary in mono-
chrome instrument clusters or in the Audi
virtual cockpit*.
— You can select the units used for tempera-
ture, speed, and other measurements in the
Infotainment system > page 230.
— Speeds are displayed in mph (miles per
hour) or km/h (kilometers per hour).
— If there is a malfunction in the instrument
cluster, DEF will appear in the trip odometer
display. Have the malfunction corrected as
soon as possible.
— Depending on vehicle equipment, the in-
strument illumination (needles and gauges)
may turn on when the lights are off and the
ignition is switched on. The illumination for
the gauges reduces automatically and even-
tually turns off as brightness outside in-
creases. This function reminds the driver to
turn the low beams on at the appropriate
time.
Coolant temperature
display
Applies to: vehicles with a coolant temperature indicator
The coolant temperature display @) > page 14
only functions when the ignition is switched on.
To reduce the risk of engine damage, please ob-
serve the following notes about the temperature
ranges.
Cold range
If only the LEDs at the bottom of the gauge turn
on, the engine has not reached operating tem-
perature yet. Avoid high engine speeds, full accel-
erating and heavy engine loads.
Normal range
The engine has reached its operating tempera-
ture once the LEDs up to the center of the gauge
turn on. If the || indicator light in the instru-
ment cluster display turns on, the coolant tem-
perature is too high > page 311.
@) Note
— Auxiliary headlights and other accessories in
front of the air intake impair the cooling ef-
fect of the coolant. This increases the risk of
the engine overheating during high outside
temperatures and heavy engine load.
—The front spoiler also helps to distribute
cooling air correctly while driving. If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the engine over-
heating will increase. See an authorized
Audi dealer or authorized Audi Service Fa-
cility for assistance.
Tachometer
The tachometer (2) > page 14 displays the engine
speed in revolutions per minute (RPM). The be-
ginning of the red zone in the tachometer indi-
cates the maximum permissible engine speed for
all gears once the engine has been broken in and
when it is warm. Before reaching the red zone,
you should shift into the next higher gear, choose
the "D" or "S" selector lever position, or remove
your foot from the accelerator pedal.
Displaying the tachometer
Applies to: vehicles with plug-in hybrid drive
> Open the first vehicle functions tab using the
<1/D button on the multifunction steering
wheel.
> Applies to: vehicles with analog instrument
cluster: Turn the left thumbwheel on the multi-
function steering wheel until the Tachometer
appears in the instrument cluster.
15
>

Instrument cluster

» Applies to: vehicles with Audi virtual cockpit:
Select on the multifunction steering wheel:
right control button > Left dial > Tachometer or
Combination view.
Engine speed limitation
Applies to: vehicles with engine speed limitation
If the BA indicator light turns on, the engine will
be automatically limited to the RPM displayed in
the instrument cluster. This will protect the en-
gine components, for example during a cold start
or from overheating.
The engine speed limitation deactivates once the
engine is no longer in the critical temperature
range and you have released the accelerator ped-
al once.
If the engine speed limitation was activated by
an engine control malfunction, the B or EPC | in-
dicator light also turns on. Make sure the engine
speed does not go above the speed displayed, for
example when downshifting. Drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.
@ Note
The needle in the tachometer (2) may only be
in the red area of the gauge for a short period
of time before there is a risk of damaging the
engine. The location where the red zone be-
gins varies depending on the engine.
Power meter
Applies to: vehicles with plug-in hybrid drive

RAZ-0709





Applies to: vehicles with analog instrument cluster
Fig. 5 Instrument cluster: power meter
16


[RAZ-0575]





Applies to: vehicles with Audi virtual cockpit
Fig. 6 Instrument cluster: power meter
Displaying the power meter
Applies to: vehicles with Audi virtual cockpit
> Open the first vehicle functions tab using the
<1/D button on the multifunction steering
wheel.
> Select on the multifunction steering wheel:
right control button > Left dial > Power meter
or Combination view.
The power meter (2) > page 14 gives feedback
about the usage capacity of the drive system. The
power meter needle displays the current usage
capacity.
Applies to: vehicles with Audi virtual cockpit: A
colored border indicates how much the drive sys-
tem can be currently utilized. The colored bor-
ders may vary depending on the selected driving
program and the electric power currently availa-
ble.
Depending on the vehicle equipment, the power
meter displays the following driving statuses:
Drive system switched off
Vehicle recovering electrical energy
Drive system switched on
Vehicle is driving with the electric
motor (green)
©
©0800
Vehicle is driving with the electric
motor, the combustion engine can
switch on automatically (green
dash)
Vehicle is driving with the combus-
tion engine (orange)
© © Vehicle is driving with maximum
power from the electric motor and

8V2012721BK
High-voltage system

> Remove the cap from the charging cable.
> Connect the cable to the vehicle charging port.
> If a charging timer is not set, the charging proc-
ess will start automatically depending on the
charging station > page 106.
> The vehicle operating status is indicated by the
status LED > page 107.
> Also read the information found in > page 106,
After charging.
@) Tips
Only charge your vehicle at charging stations
that conform to the following standards, de-
pending on the country:
— GB/T 18487.1 and GB/T 20234 (China)
— IEC 61851 and IEC 62196 (Europe)
— SAE J1772 (North America, Japan)
G) Tips
— It is not possible to charge using the charg-
ing timer at some charging stations.
— You can use your Audi charging system if
there is a household or industrial* connec-
tion available at the charging station.
Charging the battery
with the Audi charging
system
CET Ute Ret LAC hi
Applies to: vehicles with plug-in hybrid drive



Fig. 96 Audi charging system overview (example)
@ Power cable
@ Power plug (for industrial sockets)*
@®) Power plug (for household sockets)
@ Control unit

© Vehicle charging connector (connector for the
vehicle)
© Vehicle cable
The power cable (@) is plugged into the upper end
of the control unit and the vehicle cable ©) is
plugged into the lower end of the control unit @).
@ Tips
— Using the control unit while operating the
charging dock* > page 102 or charging clip*
=> page 103 is recommended. When this is
not possible, always position Audi charging
systems on a secure surface during the
charging process.
—To reduce the risk of overheating during op-
eration, do not place the Audi charging sys-
tem in direct sunlight for long periods of
time. If the control unit is overheated, the
charging process is automatically paused
until the temperature has lowered back
within the normal range.
Changing and attaching the power/vehicle
cable
Applies to: vehicles with plug-in hybrid drive
PI @

B4G-0681

Fig. 97 Control unit: removing and attaching the cable
Depending on the vehicle equipment, you may
not be able to change the vehicle cable.
Requirements:
> The charging process for the high-voltage bat-
tery must be ended.
> The vehicle charging connector must be re-
moved from the vehicle charging port.
> The power cable must be removed from the
socket.
101

High-voltage system

Setting the charging timer
You can delay the charging time with the charg-
ing timer in the Infotainment system )). You can
set two different timers.
> If a timer has been set, press the button @)
=> page 105, fig. 105. The LED in the button
will turn on.
> To set a charging timer, select: [MENU] button >
Vehicle > left control button > Charge > right
control button > Program timer.
> Select Individual timer or Repeat timer.
> Set the departure time, the date or day of the
week.
> You can specify a preferred charging time with
the charging timer, for example if you would
like to use the off-peak rate.
> You can activate the auxiliary air conditioning
with the charging timer while charging by se-
lecting Air conditioning with the control knob.
AV appears in the box. This activation is sepa-
rate from the Infotainment system settings in
the climate control menu > page 68.
> Press the [BACK] button.
> To activate the desired timer, confirm the set-
ting with the control knob. A ¥ appears in the
box.
@ Tips
— Auxiliary climate control is powered electri-
cally if you select climate control using the
charging timer. This may also be used in
confined spaces such as garages.
— Using the auxiliary climate control while
charging can also reduce the charge level of
the high-voltage battery.
—The charging process can be interrupted at
any time. Press the active button on the ve-
hicle to do this > page 105, fig. 105.
— The climate control output while charging
depends on the capacity of the electrical
connection. Additional information on cli-
mate control can be found under > page 68.





D_ Not available in all Infotainment systems.
106
Setting the charging power level
Applies to: vehicles with plug-in hybrid drive
The control unit automatically recognizes the
voltage and the available current strength. You
can set whether you would like to charge with full
or reduced charging power. The last setting that
was selected will be saved and used again the
next time the vehicle is charged. If multiple
items are connected to the power circuit, the
charging current may be reduced when charging
at a power outlet. This can help to prevent the
electrical equipment from overheating.
Before charging, always check if the charging
power setting that was selected last is still suita-
ble.
> To set the charging power level, press and hold
the @ button @ > page 105, fig. 104 for at
least two seconds.
After the charging power level is set, the status
LEDs ©, iand {) will flash green one time. The
selected value (50% or 100%) is displayed on the
left or right side of the ® button.
Name lee ale]
Applies to: vehicles with plug-in hybrid drive
After
completing the charging or climate control
process, the vehicle enters a sleep mode. No dis-
plays are visible on the charging unit during this
period. Always remove the vehicle charging con-
nector first after charging.
The vehicle charging connector is locked during
and after charging. You must unlock the connec-
tor to remove it.
Unlocking the vehicle charging connector
when the vehicle is locked
> Unlock the vehicle. The connector will unlock
for 30 seconds.
> Remove the connector.
> If the connector is not removed within 30 sec-
onds, it will lock again automatically.

Assist systems

Switching the system on
Applies to: vehicles with cruise control system

@ #
©
f°
Fig. 107 Lever: switching on the cruise control system

Requirement: the ignition must be switched on.
> To switch the system on, pull the lever toward
you to position @).
The (a or 8] 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, it may shut off automatically.
Preselecting or activating a cruise control
Cy ey-t-te)
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 116, fig. 107.
> To activate the cruise control speed, pull the
lever toward position @ while driving, or
> 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 ICRUISE| or i=} indicator light in the instrument
cluster.
116
Changing the cruise control speed
Applies to: vehicles with cruise control system
> To increase or decrease the cruise control speed
in increments, tap the lever toward @)/G)
=> page 116, fig. 107.
> To increase or decrease the cruise control speed
continuously, press and hold the lever to-
ward @/@).
Overriding or deactivating the cruise
control speed
Applies to: vehicles with cruise control system
You can override or deactivate the cruise control
system. When you deactivate the system, your
cruise control speed will be stored and you can
resume that speed.
Requirement: the system must be switched on
and activated.
Overriding
> To temporarily override the cruise control
speed, press the accelerator pedal.
> Once you release the accelerator pedal, the sys-
tem will adjust back to the stored cruise control
speed.
If you override the cruise control system for a
long period of time, the cruise control system
will be deactivated. The ICRUISE| or indicator
light will be displayed and the cruise control
speed will be saved.
Deactivating
> To deactivate the cruise control speed, press
the lever toward (2) (not locked into place)
=> page 116, fig. 107.
> Press the brake pedal.

ZA WARNING
Resting your foot on the accelerator pedal
could override the cruise control. This will pre-

vent braking interventions by the system.

8V2012721BK
Assist systems

Switching the system off
Applies to: vehicles with cruise control system
When you switch the system off completely, the
cruise control speed will be deleted.
Requirement: the system must be switched on.
> To switch the system off, press the lever toward
@ (locked into place) > page 116, fig. 107, or
> Switch the ignition off.
Applies to: vehicles with cruise control system
ICRUISE| / 3) Speed control system: currently un-
available. See owner's manual
If the indicator light turns on and this message
appears, the cruise control system has been deac-
tivated. There is a temporary malfunction, for ex-
ample the brakes are overheating. Switch the
cruise control system on again later.
Lap timer
Applies to: vehicles with lap timer
You can measure and analyze lap times with the
lap timer in the display.
Opening the lap timer
> Open the first Vehicle tab (trip computer) using
the |<>] button on the multifunction steering
wheel.


> Applies to: vehicles with analog instrument
cluster: Press the [=] button on the multifunc-
tion steering wheel and select Lap timer in the
menu.
> Applies to: vehicles with Audi virtual cockpit:
On the multifunction steering wheel, select:
left control button > Lap times.
Operating the lap timer
> On the multifunction steering wheel, turn the
left thumbwheel @) > page 17 or @ > page 20
until the desired menu item is displayed in the
instrument cluster.
> Press the left thumbwheel to confirm the selec-
tion.

ZX WARNING
Your focus should always be on driving your
vehicle safely. As the driver, you have com-
plete responsibility for safety in traffic. Only
use the functions such as the lap timer in such
a way that you always maintain complete con-
trol over your vehicle in all traffic situations.
(i) Tips
You can retrieve information from the trip
computer while the lap timer stopwatch is
running.
times and timing
Applies to: vehicles with lap timer

Requirement: the lap timer must be open
=> page 117.
Timing laps
> To start timing, select Lap 1 - press OK or Start
lap 1 in the menu.
> Applies to: vehicles with Audi virtual cockpit: To
start timing automatically when you start driv-
ing, select Start lap 1 by driving off or Start by
driving off in the menu.
> To measure the lap time, select New lap - press
OK or New lap in the menu. This starts timing
the next lap at the same time.
After completing, the difference between the last
lap and the previous best lap time will be indicat-
ed witha “—"@ or “"/.
Pausing timing and displaying a split time
> To insert a pause i select Pause in the menu.
> To continue timing, select Press OK to resume
or Resume in the menu.
> To display a split time, select Split time in the
menu. The split time {@] appears for approxi-
mately 10 seconds in the instrument cluster.
The timing of the current lap continues.
Resetting timing
> Using the multifunction steering wheel, select
Reset or Reset times in the menu. >
117

8V2012721BK
Checking and Filling

The fuel tank is almost empty. You must antici-
pate a significant power loss. Drive immediately
to a gas station.
Ey Beet Warning! Limited performance
The gasoline engine is no longer available be-
cause there is not enough fuel. Drive immediately
to agas station.
Fuel filler door emergency release
Applies to: vehicles with plug-in hybrid drive
You must use the emergency release to open the
fuel filler door when there is a malfunction
=> page 301.
The tank is not vented. You can only fill a small
amount of fuel in the tank.
> Fill only until the automatic fuel pump nozzle
turns off for the first time when it is operated
correctly.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
@ Tips.
Pressure can escape if you open the tank cap
after using the emergency release. This can
create noises.
Emissions control
system
(ee eileen)
ZX WARNING
The temperature of the exhaust system is
high, both when driving and after stopping
the engine.
— Never touch the exhaust tail pipes once they
have become hot. This could result in burns.

— Do not park your vehicle over flammable
materials such as grass or leaves because
the high temperature of the emissions sys-
tem could start a fire.

— Do not apply underbody protectant in the
exhaust system area, because this increases
the risk of fire.
(el e-] Nad (mcl akg
Follow the safety precautions > page 303, Gener-
al information.


The vehicle may only be driven with unleaded
gasoline, or the catalytic converter will be de-
stroyed.
Never drive until the tank is completely empty.
The irregular supply of fuel that results from that
can cause engine misfires. Uncombusted fuel
could enter the exhaust system, which could
cause overheating and damage to the catalytic
converter.
On Board Diagnostic System (OBD)
The On Board Diagnostic System monitors the
engine and transmission components that influ-
ence emissions.


Fig. 245 Footwell on left side of the vehicle: connection
port for the On Board Diagnostic System (OBD)
On Board Diagnostic System
Engine data can be read out at the On Board Di-
agnostic System connection port using a special
testing device > fig. 245.
Indicator light
If the S indicator light blinks or turns on, there
is a malfunction that is causing poor emissions
quality and that could damage the catalytic con-
verter. Drive slowly to an authorized Audi dealer >
303

8V2012721BK
Checking and Filling

> Check the coolant level in the coolant expan-
sion tank > page 307, fig. 248 using the outer
markings (2) > fig. 252. The coolant level must
be between the markings (2) when the engine is
cold. When the engine is warm it can be slight-
ly above the upper marking.
Adding coolant
Applies to: vehicles with plug-in hybrid drive:
Your vehicle has two coolant expansion tanks
that are separate from each other. The smaller of
the two expansion tanks must not be opened
= page 312. Read and follow the important safe-
ty precautions > A\ in Coolant on page 312.
Requirement: there must be a residual amount of
coolant in the expansion tank >@).
If you must add coolant, use a mixture of water
and coolant additive. Mixing the coolant additive
with distilled water is recommended.
> Allow the engine to cool.
> Place a large, thick towel on the coolant expan-
sion tank cover.
> Remove the cover (@) © fig. 252 carefully to the
left > AX.
» Add the correct mixture ratio of coolant
> page 311 up to the upper marking @
> fig. 252.
> Make sure that the fluid level remains stable.
Add more coolant if necessary.
> Close the cap securely.
Coolant loss usually indicates that there is a leak.
Immediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, coolant loss can re-
sult from the coolant boiling due overheating
and then being forced out of the cooling system.

— Never open the hood if you can see or hear
steam or coolant escaping from the engine
compartment. This increases the risk of
burns. The cooling system is under pressure.
When you no longer see or hear steam or
coolant escaping, you may open the engine
compartment with caution.
—When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
— Coolant additive and coolant can be danger-
ous to your health. For this reason, store the
coolant in the original container and away

from children. There is a risk of poisoning.

@) Note
Do not add coolant if the expansion tank is
empty. Air could enter the cooling system and
damage the engine. If this is the case, do not
continue driving. See an authorized Audi deal-
er or authorized Audi Service Facility for assis-
tance.
Brake fluid

BFV-0229)



Z\ WARNING
— The engine compartment in any vehicle can
be a dangerous area. Stop the engine and al-
low it to cool before working in the engine
compartment. Always follow the informa-
tion found in > page 304, General informa-
tion.


Fig. 253 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions > page 304, Gen-
eral information.
Checking the brake fluid level
Read the brake fluid level on the brake fluid res-
ervoir > page 307, fig. 248. The brake fluid level
must be between the MIN and MAX markings
>A.
The brake fluid level is monitored automatically. >
313