2021 AUDI TT heating

Warm and cold

@) Note
To reduce the risk of damage to the seat heat-
ing elements, do not kneel on the seats or
place heavy pressure on one area of the seat.
@) Tips
— The setting for the seat heating on the driv-
er's side is assigned to the key that is in use.
— If the front passenger's seat heating is
turned on, it will not turn on again automat-
ically if more than 10 minutes have passed
between switching the ignition off and
switching it on again.
Neck heating
Applies to: vehicles with neck heating

BFV-0177


BFV-0178

Fig. 82 Cockpit: neck heating
The neck heating has three levels. If you turn the
knob to the right, the neck heating switches on
=> fig. 82. The LEDs above the seat symbol indi-
cate the ventilation level. Turn the knob to the
left to reduce ventilation. To switch off the neck
heating, keep turning the knob to the left until
no LEDs are turned on.
72

When the power top is closed, the neck heating
will switch automatically from setting 3 to set-
ting 2 after approximately six minutes.

ZA WARNING
— Individuals with reduced sensitivity to pain
or temperature could develop burns when
using the neck heating. To reduce the risk of
injury, these individuals should not use neck
heating.
— The output from the neck heating may be-
come very hot temporarily if the air vents in
the seats > fig. 87 are covered by clothing
or similar objects when the system is switch-
ed on. This can cause burns on unprotected
skin exposed directly to the vents.
@ Tips
— The fan speed is always lower when the
power top is closed than when it is open.

— Energy management > page 109 may re-
duce the heat output if the battery voltage
is too low.
Fluids in the A/C system
Refrigerant in the A/C system
The sticker in the motor compartment provides
information about the type and amount of refrig-
erant used in the vehicle’s A/C system. The stick-
er is located in the front section of the motor
compartment or at the front or back of the hood.

Symbol
A
ss
ott
Meaning

Warning: the A/C system must only
be serviced by qualified technicians.

Refrigerant type

Lubricant type

Refer to the service information
(only available for authorized Audi
dealers or authorized Audi Service
Facilities)
e The A/C system must only be serv-
Ri} iced by qualified technicians. >

Driving

Driving
General information
Breaking in
A new vehicle must be broken in within the first
1,000 miles (1,500 km) so that all moving parts
work smoothly together, which helps to increase
the service life of the engine and other drive com-
ponents.
Do not drive higher than two-thirds of the maxi-
mum permitted engine RPM during the first 600
miles (1,000 km) and do not use full accelera-
tion. The engine can be increased RPM gradually
during the next 300 miles (S00 km).
Trailer mode
® Note
Your Audi is not designed for towing a trailer.
Damage caused by towing a trailer is not cov-
ered by the warranty.
Reducing the risk of vehicle damage
@) Note
When driving on poor roads, over curbs, and
on steep ramps, make sure that components
that hang below the vehicle, such as the spoil-
er and exhaust system, are not struck because
they could be damaged. This especially ap-
plies
to vehicles with low ground clearance
and vehicles that are heavily loaded.
Driving through water
If you must drive through water, follow these in-
structions:
— Check the stability of the ground, the current,
and the water depth. If the ground is unstable,
there is a strong current, or there are waves,
the water must only reach up to the lower edge
of the body at the most.
— Deactivate the Start/Stop system*.
— Drive carefully and no faster than at walking
speeds to prevent the front of the vehicle from
creating waves, because they could splash
above the lower edge of the body. Oncoming
vehicles could also create waves.
— Do not stop the vehicle while in the water.
— Drive in reverse.
— Do not turn the engine off.

ZA WARNING
After driving through water, press the brake
pedal carefully to dry the brakes so that the
full braking effect will be restored.
@) Note
Vehicle components such as the motor, drive
system, suspension, or electrical system can
be severely damaged by driving through wa-
ter
Gi) Tips
If possible, avoid driving through salt water
because it increases the risk of corrosion. Use
fresh water to clean any vehicle components
that come into contact with salt water.
Efficient and environmentally-friendly
driving
The amount of fuel consumption, the environ-
mental impact, and the wear to the engine,
brakes, and tires depends mostly on your driving
style. Note the following information for efficient
and environmentally-conscious driving:

— Turn off electrical equipment that is not need-
ed, for example seat heating*.
— Anticipate upcoming traffic situations while
driving to avoid unnecessary acceleration and
braking.
— Avoid driving at high speeds.
— Avoid adding extra weight to the vehicle if pos-
sible, for example by not leaving roof racks or
bike racks installed when they are not needed.
— Make sure the tire pressure is correct.
— Have maintenance performed regularly on the
vehicle.
— Do not let the engine run while the vehicle
parked.

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

Intelligent Technology

Intelligent Technology
Electronic Stabilization
Control (ESC)
Electronic Stabilization Control (ESC) supports
driver safety. It reduces the risk of slipping and
improves driving stability. ESC detects critical sit-
uations such as the vehicle oversteering and un-
dersteering or the wheels are spinning. The
brakes are applied or the motor torque is reduced
in order to stabilize the vehicle. When the ESC
engages, the B indicator light flashes in the in-
strument cluster.
The following systems are integrated in the ESC:
Anti-lock braking system (ABS)
ABS prevents the wheels from locking when brak-
ing. The vehicle can still be steered even during
hard braking. Apply steady pressure to the brake
pedal. Do not pump the pedal. A pulsing in the
brake pedal indicates that the system is acting to
stabilize the vehicle.
Brake assist
The brake assist system can decrease braking dis-
tance. It increases braking power when the driver
presses the brake pedal quickly in emergency sit-
uations. You must press and hold the brake pedal
until the dangerous situation is over.
Anti-Slip Regulation (ASR)
ASR reduces drive power when the wheels begin
spinning and adapts the power to the road condi-
tions. This will increase the driving stability.
Electronic Differential Lock (EDL)
The EDL applies the brakes to wheels that are
slipping and transfers the drive power to the oth-
er wheels. This function is not available at higher
speeds.
In extreme cases, EDL automatically switches off
to keep the brake on the braked wheel from over-
heating. The vehicle is still functioning correctly.
EDL will switch on again automatically when con-
ditions have returned to normal.
104
Power steering
The ESC can also support vehicle stability
through steering.
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.
Automatic post-collision braking system
The automatic post-collision braking system can
help to reduce the risk of sliding and of addition-
al collisions after an accident. If the airbag con-
trol module detects a collision above a certain ve-
hicle speed, the vehicle is braked by the ESC.
The vehicle does not brake automatically if one of
the following occurs:
— The driver presses the accelerator pedal
—The braking force generated by the pressed
brake pedal is greater than the braking force
that would be initiated by the system
— The ESC, the brake system, or the vehicle elec-
trical system is not functioning

Z\ 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

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.

Care and cleaning


ZA\ WARNING
The windshield must not be treated with wa-
ter-repelling windshield coating agents. Un-
der unfavorable conditions, such as wetness,
darkness, and when the sun is low, these coat-
ings can cause increased glare, which increas-
es the risk of an accident. They can also cause
wiper blade chatter.

@) Note
— Headlights and tail lights
— Never clean the headlights or tail lights
with a dry cloth or sponge because the
lights could be damaged.
— Do not use any cleaning products that con-
tain alcohol, because they could cause
cracks to form.
— Wheels
— Never use any paint polish or other abra-
sive materials.
— Damage to the protective layer on the
rims, such as stone chips or scratches,
must be repaired immediately.
— Camera lenses
— Never use warm or hot water to remove
snow or ice from the camera lens. This
could cause the lens to crack.
— Never use abrasive cleaning materials or
alcohol to clean the camera lens. This
could cause scratches and cracks.
— Power top
— Remove bird droppings immediately.
— Never use gasoline, spot remover, ben-
zene, paint thinner or other solvents to re-
move.
— Door windows
— Remove snow and ice on windows and ex-
terior mirrors with a plastic scraper. To re-
duce the risk of scratches, move the scra-
per only in one direction and not back and
forth.
— Never remove snow or ice from door win-
dows and mirrors using warm or hot water
because this could cause cracks to form.
—To reduce the risk of damage to the rear
window defogger, do not apply any stick-
240
ers on the heating wires on the inside of
the window.
— Decorative parts and trim
— Never use chrome care or cleaning prod-
ucts.
— Paint
—To reduce the risk of scratches, the vehicle
must be free of dirt and dust before pol-
ishing or waxing.
— To prevent paint damage, do not polish or
wax the vehicle in direct sunlight.
— To reduce the risk of paint damage, do not
polish away rust spots.
— Remove cosmetics and sunscreen immedi-
ately because they could damage the
paint.
— Decorative decals
—To reduce the risk of damage, do not use
any rough powder or abrasive cleaning
products.
—To reduce the risk of damage, do not pol-
ish decorative decals that have a matte or
printed finish.
— Due to the risk of damage, do not use an
ice scraper to remove snow and ice on win-
dows with decorative decals on them.
— Instrument cluster
— Make sure that the instrument cluster is
switched off and has cooled off before
cleaning it.
—The instrument cluster and the trim sur-
rounding it must not be cleaned with dry
cleaning methods because they could get
scratched.
— Make sure no fluids enter the spaces be-
tween the instrument cluster and the
trim, because that could cause damage.
— Controls
— Make sure that no fluids enter the con-
trols, because this could cause damage.
— Safety belts
— Do not remove the safety belts to clean
them.
— Never clean safety belts or their compo-
nents with chemicals or with corrosive flu-
ids or solvents and never allow sharp ob-
jects to come into contact with the safety >