2021 AUDI TT catalytic converter

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.

Driving

P - Park
You can only shift into Park when the vehicle is
stationary > A.
To shift in and out of the P selector lever position,
press the interlock button in the selector lever
while pressing the brake pedal.
R - Reverse
Only shift into reverse gear when the vehicle is
stationary and the engine is running at idle
speed >A.
To select the R selector lever position, press the
interlock button while pressing the brake pedal.
The back-up lights switch on in the R position if
the ignition is switched on.
N - Neutral (idle)
The transmission is in idle in this position.
D/S - Normal position for driving forward
In the D/S selector lever position, the transmis-
sion can be operated either in the normal D mode
or in the S sport mode. To select the S sport
mode, pull the selector lever back briefly. Pulling
the lever back again will select the normal D
mode. The selected driving mode is shown in the
Infotainment display.
In the normal mode "D", the transmission auto-
matically selects the correct gear. It depends on
engine load, vehicle speed and driving style.
Select the sport mode "S" for sporty driving. The
vehicle makes full use of the engine's power.
Shifting may become noticeable when accelerat-
ing.
To move from selector lever position "N" to "D",
you must press the brake pedal and the vehicle
must be traveling less than 1 mph (2 km/h) or be
stationary > A.


— Never select "R" or "P" while driving, be-
cause this increases the risk of an accident.
— Power is still transmitted to the wheels
when the engine is running at idle. To pre-
vent the vehicle from “creeping”, you must
keep your foot on the brake in all selector
lever positions (except “P”) when the engine
is running. Otherwise, this increases the risk
of an accident.
— Do not inadvertently press the accelerator
pedal when the vehicle is stopped if a gear is
engaged. Otherwise the vehicle will start to
move immediately, even if the parking brake
is set. This could result in a crash.
— Do not press the accelerator pedal when
changing the selector lever position while
the vehicle is stationary and the engine is
running.
— Never leave your vehicle with the engine
running while in gear. If you must leave your
vehicle when the engine is running, set the
parking brake and move the selector lever to
the "P" position.
— To decrease the risk of an accident, the se-
lector lever must be in the P position and
the parking brake must be set before open-
ing the hood and working ona running en-
gine. Always read and follow the applicable
warnings > page 200, General information.


Z\ WARNING
Read and follow all WARNINGS.
— Before starting to drive, check if the desired
selector lever position is displayed next to
the selector lever.
— The vehicle can roll even if the ignition is

switched off.

82
@) Note
Never let the vehicle roll downhill with engine
off and the selector lever in the "N" position,
because this could damage the automatic
transmission and catalytic converter.
(i) Tips
— Drive select: sporty shifting characteristics
can be selected using the Dynamic driving
mode. The Infotainment display shows “S”
as the selector lever position instead of “D”.
— If you accidentally select "N" while driving,
take your foot off the accelerator pedal im-
mediately and wait for the engine to slow
down to idle before selecting "D" or "S".
— If there is a power failure, the selector lever
will not move out of the "P" position. The >

Checking and Filling

Checking and Filling
Fuel
Types of gasoline
The correct gasoline grade is stated on the inside
of the fuel filler door.
The vehicle is equipped with a catalytic converter
and must only be driven with unleaded gasoline.
Audi recommends using TOP TIER Detergent Gas-
oline. For additional information on TOP TIER De-
tergent Gasoline, visit www.toptiergas.com.
The individual gasoline grades are differentiated
by octane ratings. This value is given with (R
+M)/2 equating to AKI or in RON.
The headings below match the sticker in the fuel
filler door (examples):
UNLEADED FUEL ONLY MIN. (R+M)/2 87
Regular / MIN. RON 91 Regular
Use regular gasoline with minimum 87 AKI /
91 RON >©.
UNLEADED FUEL ONLY PREMIUM MIN. (R
+M)/2 91 / SUPER MIN. RON 95
Using premium gasoline with minimum 91 AKI /
95 RON is recommended.
Applies to: TT and TTS models: If premium gaso-
line is not available, you can also use regular gas-
oline 87 AKI / 91 RON. However this does reduce
the engine power slightly.
Applies to: RS models: To achieve the specified
power and torque, Audi recommends using pre-
mium plus gasoline with at least 93 AKI / 98
RON.
Applies to: RS models: If premium gasoline is not
available, you can also use regular 87 AKI /
91 RON gasoline if absolutely necessary. Howev-
er, you must only drive in the middle of the RPM
range and with low engine load. Refuel your vehi-
cle with premium gasoline as soon as possible.
UNLEADED FUEL ONLY PREMIUM MIN. (R
+M)/2 93 / SUPER PLUS MIN. RON 98
Using premium plus gasoline with at least 93
AKI / 98 RON is recommended.
196
If no premium plus gasoline is available, you can
also use premium gasoline with 91 AKI / 95 RON.
However this does reduce the engine power
slightly.
C) Note
— Filling the tank just one time with leaded
fuel or other metallic additives will cause
permanent deterioration to the catalytic
converter function.
— When gasoline with an octane rating that is
too low is used, high speeds or heavy engine
load can lead to engine damage.
G) Tips
The vehicle may be filled with fuel that has a
higher octane rating than what is required by
the engine.
Gasoline mixture
Gasoline with alcohol or MTBE (Methyl-Tert-
Butyl-Ether)
You can use unleaded gasoline mixed with alco-
hol or MTBE (generally labeled as oxygenated
compounds) as long as the fuel meets the follow-
ing conditions:
Gasoline with methanol content (methyl alco-
hol or methanol)
— Anti-Knock Index is at least 87 AKI
—No more than 3% methanol
— More than 2% solvent
Gasoline with ethanol content (ethyl alcohol or
ethanol)
— Anti-Knock Index is at least 87 AKI
—No more than 15% ethanol
Gasoline with MTBE content
— Anti-Knock Index is at least 87 AKI
—No more than 15% MTBE
Gasoline adapted to the season
Many gasoline fuels are adapted to the seasons.
When the season changes, refueling at high-traf-
fic gas stations is recommended. It is more likely
that the gasoline will be suitable for the season
there.

Checking and Filling

continue fueling, or else the expansion space in
the tank will be filled with fuel.
> After the fuel pump has switched off, wait five
seconds before removing the nozzle to allow
the rest of the fuel to finish dripping into the
fuel tank.
> Close the fuel filler door and then press on the
left side until it latches.
The correct fuel type for your vehicle can be
found ona label located on the inside of the fuel
filler door. For additional information on fuel, see
=> page 196.
For the tank capacity in your vehicle, refer to the
Technical Data > page 264.
Messages
If the Ay indicator light appears with a corre-
sponding message, refuel the vehicle.
1D] Tank system: malfunction! Please contact
Service
There is a malfunction in the fuel tank system.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.

flying sparks. Sparks can start a fire when
refueling.



Z\ WARNING
Improper fueling procedures and improper
handling of fuel can lead to explosions, fires,
severe burns, and other injuries.
— Do not smoke. Keep away from open flames.
— The ignition must be switched off when re-
fueling.
— Mobile devices, radio devices, and other ra-
dio equipment should always be switched
off when refueling. Electromagnetic rays
could cause sparks and start a fire.
— If you do not insert the fuel pump nozzle all
the way into the filler tube, then fuel can
leak out. Spilled fuel can ignite and start a
fire.
— Never get into the vehicle when refueling. If
there is an exceptional situation where you
must enter the vehicle, close the door and
touch a metal surface before touching the
fuel pump nozzle again. This will reduce the
risk of electrostatic discharge that can cause


ZA\ WARNING
Audi does not recommend transporting fuel
containers inside the vehicle. Fuel could leak
out of the container and ignite, especially dur-
ing an accident. This can cause explosions,
fires, and injuries.
— If you must transport fuel in a fuel contain-
er, note the following:
— Always place the fuel container on the
ground before filling. Never fill the fuel
container with fuel while it is inside or on
the vehicle. Electrostatic discharge can oc-
cur while refueling and the fuel vapors
could ignite.
— When using fuel containers made of met-
al, the fuel pump nozzle must always re-
main in contact with the container to re-
duce the risk of static charge.
— Insert the fuel pump nozzle as far as possi-
ble into the filler opening while refueling.
— Follow the applicable legal regulations in
the country where you are driving when
using, storing and transporting fuel con-
tainers.
— Make sure that the fuel container meets
the industry standards, for example ANSI
or ASTM F852-86.


198
@) Note
— Remove fuel that has overflowed onto any
vehicle components immediately to reduce
the risk of damage to the vehicle.
— Never drive until the fuel tank is completely
empty. The irregular supply of fuel that re-
sults from that can cause engine misfires.
Uncombusted fuel may enter the exhaust
system and increase the risk of damage to
the catalytic converter.
@) For the sake of the environment
— Do not overfill the fuel tank, or fuel could
leak out when the vehicle is warming up.
— Fuel should never enter the sewer system or
come into contact with the ground.

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!

8S1012721BE
Checking and Filling


High voltage! Switch off the engine be-
fore coming into contact with any igni-
tion system components!

The catalytic converter can be damaged
"271i if the oil level is too high!

Always follow the instructions in the op-
aa erating manual.


ZA\ WARNING
— Turn the engine off.
— Switch the ignition off.
— Set the parking brake.
— Select the “P” (Park) selector lever position.
— Allow the engine to cool.
— Keep children away from the motor com-
partment.
— Never spill fluids on a hot engine. These flu-
ids (such as the freeze protection contained
in the coolant) can catch fire.
— Avoid short circuits in the electrical system.
— Never reach into the radiator fan. The fan is
temperature-controlled and can turn on
suddenly, even when the ignition is switched
off.
— Never open the hood when there is steam or
coolant escaping from the motor compart-
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
—The cap on the coolant expansion tank must
never be opened when the coolant is hot.
The cooling system is under pressure. There
is a risk of burns
— To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
thick cloth when opening.
— Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
— Due to the risk of electric shock, never touch
the ignition cable or other components in
the electronic high-voltage ignition system
when the engine is running or is starting.
— If a gear is engaged while the vehicle is sta-
tionary and the engine is running, do not
press the accelerator pedal inadvertently.
Pressing the accelerator pedal will cause the
vehicle to move, and this could result in an
accident.
— If inspections or repairs must be performed
while the engine is running, moving compo-
nents (such as the ribbed belt, generator,
and radiator fan) pose an additional risk.
— Set the parking brake first and select the
“P” (Park) selector lever position.
— Always make sure that no parts of the
body, jewelry, ties, loose clothing, and
long hair can be caught in moving engine
components. Before any work, always re-
move any jewelry and/or ties, tie back long
hair, and make sure all clothing fits close
to the body to reduce the risk of anything
becoming caught in engine components.
— Pay attention to the following warnings list-
ed when work on the fuel system or on the
electrical equipment is required.
— Do not smoke.
— Never work near open flames.
— Always have a working fire extinguisher
nearby.
— All work on the battery or electrical system
in your vehicle can result in injuries, chemi-
cal burns, accidents, or burns. Because of
this, all work must be performed only by an
authorized Audi dealer or authorized Audi
Service Facility.
— Limit your exposure to exhaust and chemi-
cals to as short a time as possible.


Z\ WARNING
California Proposition 65 Warning:
— Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali-
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu-
ids contained in vehicles and certain prod-
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
— Battery posts, terminals and related acces-
sories contain lead and lead compounds,
chemicals known to the State of California

201

Index

Balance:(SOund) cisco a cxavore a x assess « ¥ exeane 193
Band
refer to Frequency band............... 164
Bassi(SOUn) « semar » somone oa umes © a name © ee 193
Battery, secvos «x sxumes ow cxrnens w a aumees vo aston vo 210
Charging .... 0.0... cece cence eee eens 211
Winter Operation s « ween s » ewe « e eewe + we 210
Bluetooth
AUGIO player » secu ss mone oo oasna oo inane wo 172
Connecting a mobile phone............ 128
Settings...............00 000020000 192
BoOSt .. 6... eee eee eee 15
Boost pressure indicator................. 15
Brake fluid
Checking the brake fluid level........... 209
Brakes... eee ee 106
Brakeiassist: worn « : mann a ¢ mage se seme a a 104
Brake assist systeM............0--000. 104
Brake fluid... 0.6... cece eee eee 209
Electromechanical parking brake......... 79
Emergency braking function............. 79
New brake pads..............--.00000- 106
Braids. « scwens 1 « sneewes 4 sesuees «0 otoaets 0 6 ssenwen a 195
Break-in security feature..........0e. eee 24
Breaking in
New brake pads..............--00000- 106
Ne@Wtit@Sicic s esses » i ows 2 3 paoes se eer 5 221
Browser
refer to Media center..............44. 178
Bulb replacements: ss ease ss eeu 3 i owes s 255
Buttons
Controlpaneli(MMI):. « . ssssiss 6 a secunes os ames 110
Cc
Cable (USB adapter/AUX connector cable).. 175
California Proposition 65 Warning........ 201
Battery:specificien: 2 = cas 2 onsen = mesa x ex 210
GalLUst + sion os wri oo ewan vo enn e HeeN = 132
CalloptionSees « cams = 4 cape + eee & ¥ eee 139
Capacities
Fueltanks, « sess x x csosein oe mewe woo cone eve 264
Washer fluid reservoir..............--. 264
CAPEK Yeine 5 x cxowens « eaviece a 6 enzsite au use + 1 wens 19
CARWASH. & anasnos c+ wnscwns o esnarne > x camtene H axeee 236
Catalytic converter’. wei 6 ewe ve eww vv oe 200
CD drive (media drives)................. 171
266
Cell phone
refer to Telephone.............00 eee 128
Cell phone compartment
refer to Audi phone box............... 130
Center armrest ....... 00. c cece eee eee es 47
Central locking.................0 ese eeee 18
AUTO LOGK:: » cuoz = wees: = sem 4 s seu 2 mae 18
Conveniencerkey’s sic. zs suvses se sven « stamens 22
Convenience opening and closing......... 27
Mechanically unlocking and locking....... 24
Remote'control keyicssis so issn se aera s 6 oem 21
Setting. ........ 0.0... 23)
Central locking switch..............0.00. 23
Ceramic Drakes :.cvcr: 2 2 sweieue eo wane oo cxivaue a vs 106
Certiticationses «swans x x aveins a x cxmmve a x aeaoans 261
Changing light bulbs................... 255
Charging
refer to Power sourceS..........-0000005 63
Charging the battery (mobile devices). 130, 176
Child safety seats...............-.000065 57
Securing to the top tether anchor........ 62
Securing with a safety belt.............. 60
Securing with LATCH: « « suas: ss gee 2 x seem 60
GlaSSie VieWirs « = sccm & x news © 2 etme cg eee we 13
Cleaning... 2.2.2... eee eee eee eee 236
Cleaning Alcantara.............-..0000. 239
Cleaning artificial leather............... 239
Cleaning carbon components........ 238, 239
Cleaning Controls'. « sieve ee sree oo eevee + 0 we 239
Cleaning decorative parts andtrim... 238, 239
Cleaning exhaust tail pipes.............. 238
Cleaning plastic parts .;. 2s gcse ss qeam = soe 239
Cleaning tail lights................00.-. 237
Cleaning textiles.................0000. 239
Cleaning the wind deflector............. 238
Climate control system............-..0-- 69
Climate control system (automatic)
Drive select............ 0.0002 eee eee 96
Clock... eee eee eee eee eee 189
Closing
COnVENIENCE-ClOSING awe se sere = t means = x ow 27
HOOGs: 2 5 acs 2 2 wie os wena so mez wan 202
Luggage compartment lid............... 25
WINGWS%: 4 = sews 3s Saas 7 a Hees oa ee a Ad 27
Cockpit (overview) .............0000ee eee 6
Color code... . 6. cece eee ee eee eee eee 263