overheating AUDI TT 2021 Owner´s Manual

8S1012721BE
Instrument cluster

@) 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 10, fig. 3 displays the
engine speed in revolutions per minute (RPM).
The beginning of the red zone in the tachometer
indicates the maximum permissible engine speed
for all gears once the engine has been broken in.
Before reaching the red zone, you should shift in-
to the next higher gear, choose the "D" or "S" se-
lector lever position, or remove your foot from
the accelerator pedal.
Engine speed limitation
Applies to: vehicles with center armrest
If the BB 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§ indicator
light also turns on. Make sure the engine speed
does not go above the speed displayed, for exam-
ple when downshifting. Drive to an authorized
Audi dealer or authorized Audi Service Facility im-
mediately to have the malfunction corrected.
CG) Note
The needle in the tachometer 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.
Odometer
11:30"

Fig. 4 Instrument cluster: odometer and reset button
The trip odometer and odometer are displayed in
the status line ©) > page 10, fig. 3.
The trip odometer shows the distance driven
since it was last reset. It can be used to measure
short distances. The odometer shows the total
distance that the vehicle has been driven.
Resetting the trip odometer

> Press the reset button [0-0] on the instrument
cluster. The trip odometer will be reset to zero.
(i) Tips
Distances are displayed in mi (miles) or km
(kilometers).

Outside temperature
display
The outside temperature is displayed in the sta-
tus line ©) > page 10, fig. 3.
If your vehicle is stationary or if you are driving at
very low speeds, the temperature displayed in
the instrument cluster may be slightly higher
than the actual temperature outside due to heat
radiating from the motor.
11

Instrument cluster
At temperatures below 41 °F (+5 °C), a snowflake
symbol appears in front of the temperature dis-
play > A.
ZA WARNING
Do not assume the roads are free of ice based
on the outside temperature display. Be aware
that there may be ice on roads even when the
outside temperature is around 41 °F (+5 °C)
and that ice can increase the risk of accidents.


Fuel level
The display @ > page 10, fig. 3 only works when
the ignition is switched on. When the display has
reached the reserve mark, a red LED turns on and
the iy indicator light turns on > page 198.
For the tank capacity in your vehicle, refer to the
Technical Data > page 264.
@) Note
Never drive until the tank is completely emp-
ty. The irregular supply of fuel that results
from that can cause engine misfires. Uncom-
busted fuel will then enter the exhaust sys-
tem. This can cause overheating and damage
to the catalytic converter.
Multifunction steering
wheel
87.6 MHz
cS BAL
90.0 MHz
90.5 MHz
91.5 MHz
TRON Lard
Fig. 5 Driver information system display
12

Fig. 6 Left side of multifunction steering wheel
Requirement: the ignition must be switched on.
The driver information system contains multiple
tabs (—) that display various information @).
The following tabs may be available, depending
on vehicle equipment:










First tab Vehicle functions
Second tab | Driver messages (this is only dis-
played if at least one indicator
light/message is being displayed)
=>page 16
Third tab Radio > page 164
Media > page 169
Fourth tab | Telephone > page 128
Fifth tab Navigation > page 148
Map > page 157
Sixth tab Sound> page 189
Audi connect > page 141
Settings > page 189
@|s=] Button

Switching tabs: press the [<>] button repeatedly
until the desired tab is shown (for example, Ra-
dio).


@ MEW] Button
Changing the view > page 13.

© [=] Button
Return to functions at higher levels.
© and [| Control buttons
Open/close the selection menu or options menu
=> page 13.

Assist systems

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

BFV-0220



Fig. 94 Operating lever: switching the system on
Requirement: the ignition must be switched on.
> To switch the system on, pull the lever toward
you to position (4).
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, the regulating functions may
shut off automatically.


Preselecting or activating a cruise co
speed
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 90, fig. 94.
> To activate the cruise control speed, pull the
lever toward position (@) while driving.
> 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 Gs or =) indicator light in the instrument
cluster.
90
Changing the cruise control speed
Applies to: vehicles with cruise control system
Requirement: the system must be switched on.
> To increase or decrease the cruise control speed
in small increments, tap the lever up to the
first level toward @/C) > page 90, fig. 94.
> To increase or decrease the cruise control speed
in larger increments, tap the lever up to the
second level toward @)/C).
> To increase or decrease the cruise control speed
continuously, tap and hold the lever at the first
or second level toward (+)/G).
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 [M4 or RSM 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 90, fig. 94, or
» 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.

8S1012721BE
Assist systems

Seem ea
Applies to: vehicles with cruise control system
When you switch the system off, the cruise con-
trol speed will be erased.
Requirement: the system must be switched on.
> To switch the system off, press the lever toward
@ (locked into place) > page 90, fig. 94, 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 de-
activated. There is a temporary malfunction, for
example the brakes are overheating. Switch the
cruise control system on again later.
Lap timer
Introduction
Applies to: vehicles with lap timer
You can measure and analyze lap times with the
lap timer in the display. The time is measured in
minutes, seconds and 1/10 seconds. With lap
times longer than 60 minutes, the hour is also
shown and the display of 1/10 seconds is re-
moved.
The time measurement on an individual lap ends
after 99 hours 59 minutes and 59 seconds. A new
lap starts automatically after that.
You can control the lap timer using the controls
on the multifunction steering wheel > page 72.

ZA WARNING
Your focus should always be on driving your
vehicle safely. As the driver, you have com-
plete responsibility for safety in traffic. To re-
duce the risk of an accident, only use the lap
timer functions in such a way that you always
maintain complete control over your vehicle in
all traffic situations.


@) Tips
You can retrieve information from the trip
computer while the lap timer stopwatch is
running.
Caer mi ra Opening the lap
Applies to: vehicles with lap timer


Fig. 95 Multifunction steering wheel: controls
[RAH-£493]
@—» 0:07.2——_@
Best lap 0:29.0
0:30.5 ETO)
New Lap
Fig. 96 Instrument cluster: lap timer
Opening the lap timer

> Select in the Infotainment system: [MENU] but-
ton > Vehicle > left control button > Lap times
> Turn the left thumbwheel @) © fig. 95 until
Start lap 1 by driving off or Start by driving
off appears.
> Press the left thumbwheel to confirm the selec-
tion.

Timing laps
> To measure the lap time, press the left thumb-
wheel again to confirm the New lap menu item.
This starts timing the next lap at the same
time. The last time measurement moves up to
the top line @). The current lap time is in the
center line in area @).
As long as the [@J symbol is green during the cur-
rent lap time measurement, the current timeis >
91

Checking and Filling

er door manual release
Applies to: vehicles with fuel filler door manual release
Fuel fi

If the fuel filler door lock is faulty, the fuel filler
door can be unlocked manually.
F5FV.0093|

Fig. 165 Luggage compartment: cover in the right side
trim panel
> Open the luggage compartment lid.
> Lift the cargo floor.
> To unlock the fuel filler door, loosen the loop
from the retainer and then pull on the loop
carefully > fig. 165 >@).
> Press on the left side of the fuel filler door to
open it > page 197, fig. 167.
@ 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.
Emissions control
system
General information
Z\ 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.

200

— Do not apply underbody protectant in the
exhaust system area, because this increases
the risk of fire.
(e-) 1 ad(molae lg
Observe the safety precautions > page 200, Gen-
eral 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.
Malfunction Indicator Lamp (MIL)
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
or authorized Audi Service Facility to have the
malfunction corrected.
Motor compartment
General information
Special care is required if you are working in the
motor compartment
For work in the motor compartment, such as
checking and filling fluids, there is a risk of in-
jury, scalding, accidents, and burns. For this
reason, follow all the warnings and general
safety precautions provided in the following in-
formation. The engine compartment is a dan-
gerous area. > /\.
Explanation of warnings (sticker in the motor
compartment):
@
&

Hot motor components!
Rotating parts!

The radiator fan can switch on at any
time!

Checking and Filling

— Only refill with new coolant.
— Radiator sealant must not be mixed with
the coolant.
— You can continue driving if the permitted
G12evo coolant additive was not added.
However, go to an authorized Audi dealer or
authorized Audi Service Facility immediately
to have the coolant replaced to reduce the
risk of engine damage.
— Due to the risk of engine damage, the cool-
ing system should only be refilled by an au-
thorized Audi dealer or authorized Audi
Service Facility. An authorized Audi dealer or
authorized Audi Service Facility can also pro-
vide
you with important information about
the recommended coolant additive.
Checking coolant

©) = z [RAz-0539]

MIN


Fig. 171 Engine compartment - coolant expansion tank
(diagram): @ cover; @) markings
Observe the safety precautions > page 200, Gen-
eral information.
Checking the coolant level
>» Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood > page 202.
> Check the coolant level in the coolant expan-
sion tank > page 203, fig. 168 using the outer
markings @) > fig. 177. 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
Requirement: there must be a residual amount of
coolant in the expansion tank >@).
208
If you must add coolant, use a mixture of water
and coolant additive. Audi recommends mixing
the coolant additive with distilled water.
> Allow the engine to cool.
> Place a large, thick towel on the coolant expan-
sion tank cap.
> Remove the cover (1) > fig. 777 carefully to the
left > AX.
» Add the correct mixture ratio of coolant
> page 207 up to the upper marking @)
> fig. 177.
» 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.

Z\ WARNING
— The motor compartment in any vehicle is a
potentially dangerous area. Stop the engine
and allow it to cool before working in the
engine compartment. Always follow the in-
formation found in > page 200, General in-
formation.
— Never open the hood if you can see or hear
steam or coolant escaping from the motor
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 motor
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.