2021 AUDI TT battery

8S1012721BE
Checking and Filling


Always keep children away from battery
@) acid and the battery.


@/ | Always follow the instructions in the oper-
fQ | ating manual.


@) For the sake of the environment

“2 % Lead-acid batteries must be disposed of
using methods that will not harm the environ-
ment. Do not dispose of them in household
trash. They contain harmful substances, such
as sulfuric acid and lead, and also recyclable
raw materials. Contact an authorized Audi
dealer or authorized Audi Service Facility for
more information.
Other battery types
Explanation of warnings:

Fire, sparks, open flame, and smoking are
& forbidden.

Always keep children away from battery
@) acid and the battery.

@/ | Always follow the instructions in the oper-
fQ | ating manual.

ZA WARNING
All work on the batteries must only be per-
formed by an authorized Audi dealer or au-
thorized Audi Service Facility.
— Gases that escape from these different bat-
tery types can be poisonous or flammable.
— The contents of these battery types can be
corrosive. If any battery contents come into
contact with the skin, flush the affected
area for at least 15 minutes with clean wa-
ter. Then wash the affected area with soap.
Have the affected area examined by a medi-

cal professional.

() Note
Components must not be connected to the
battery terminals and wires on these battery
types because this increases the risk of dam-
age, for example due to overvoltage.
(@) For the sake of the environment
These types of batteries must be dis-
posed of using methods that will not harm
the environment. Do not dispose of them in
household trash. They contain harmful sub-
stances and recyclable raw materials. Contact
an authorized Audi dealer or authorized Audi
Service Facility for more information.
arging the battery

Fig. 173 Engine compartment: connectors for a charger or
jump start cables
Observe the safety precautions > page 200, Gen-
eral information, > A\ in Battery general infor-
mation on page 210 and > A\.
Requirement: only use chargers with a maximum
charging current of 14.8 volts. The battery ca-
bles remain connected.
The charging cable connections are located in the
motor compartment. The ground point ©) is al-
ways located on the vehicle body.
> Switch off the ignition and all electrical equip-
ment.
> Open the hood > page 202.
> Open the cover on the positive terminal
> fig. 173.
> Clamp the terminal clamps on the charger cor-
rectly onto the positive terminal @) and the
ground point ©).
> Insert the power cable for the charging device
into the socket and switch the device on.
> At the end of the charging process, switch the
charger off and pull the power cable out of the
socket.
> Remove the charging device terminal clamps.
> Close the cover on the positive terminal.
211
>

Checking and Filling

> Close the hood > page 202.

Z\ WARNING
— Never connect the charging cable directly to
your vehicle battery. Only use the connec-
tions in the engine compartment
=>page 211.
— Ahighly explosive mixture of gases can form
when charging batteries. Only charge the
battery in well-ventilated areas.
— A drained battery can freeze at tempera-
tures around 32 °F (0 °C). Do not charge or
use a frozen or thawed battery. If ice forms,
the battery housing can crack and battery
electrolyte can leak out, which increases the
risk of an explosion and chemical burns.
Contact an authorized Audi dealer or author-
ized Audi Service Facility for more informa-
tion.
— Do not connect or disconnect the charging
cable while charging because this increases
the risk of an explosion.

@) Tips
Read all of the manufacturer's instructions
for the charger before charging the battery.
Windshield washer
system

B4M-0135|

Fig. 174 Motor compartment: washer fluid reservoir cap
Observe the safety precautions > page 200, Gen-
eral information.
The windshield washer reservoir <> contains the
cleaning solution for the windshield and the
headlight washer system*=> page 203, fig. 168.
212
The reservoir capacity can be found in
=> page 264.
To reduce the risk of lime scale deposits on the
spray nozzles, use clean water with low amounts
of calcium. Always add window cleaner to the wa-
ter. When the outside temperatures are cold, an
anti-freezing agent should be added to the water
so that it does not freeze.
Message
3 Please add washer fluid
Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched off.
C) Note
— The concentration of anti-freezing agent
must be adjusted to the vehicle operating
conditions and the climate. A concentration
that is too high can lead to vehicle damage.
— Never add radiator anti-freeze or other addi-
tives to the washer fluid.
— Do not use a glass cleaner that contains
paint solvents, because this could damage
the paint.
Service interval display
The service interval display detects when your ve-
hicle is due for service.
The service interval display works in two stages:
— Inspection or oil change reminder: after a cer-
tain distance driven, a message appears in the
Infotainment system display each time the igni-
tion is switched on or off. The remaining dis-
tance or time is displayed briefly.
— Inspection or oil change due: if your vehicle
has reached an inspection or oil change interval
or both intervals at the same time, the mes-
sage Inspection due! or Oil change due! or Oil
change and inspection due! appears briefly af-
ter switching the ignition on or off.
Checking service intervals
You can check the remaining distance or time un-
til the next oil change or next inspection in the
Infotainment system. Select in the Infotainment >

8S1012721BE
Wheels

Production options weight
means the combined weight of
those installed regular production
options weighing over 5 lbs.
(2.3 kg) in excess of those stand-
ard items which they replace, not
previously considered in curb
weight or accessory weight, in-
cluding heavy duty brakes, ride
levelers, roof rack, heavy duty
battery, and special trim.
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the
beads are laid at substantially
90 degrees to the centerline of
the tread.
Recommended inflation
pressure
see > page 217, Cold tire infla-
tion pressure.
Reinforced tire
means a tire designed to operate
at higher loads and at higher in-
flation pressures than the corre-
sponding standard tire. Rein-
forced tires may be identified as
“XL”, “xl”, “EXTRA LOAD”, or “RF”
on the sidewall.
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim diameter
means nominal diameter of the
bead seat. If you change your
wheel size, you will have to pur-
chase new tires to match the new
rim diameter.
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between
rim flanges.
Sidewall
means that portion of a tire be-
tween the tread and bead.
Speed rating (letter code)
means the speed at which a tire is
designed to be driven for extend-
ed periods of time. The ratings
range from 93 mph (150 km/h)
to 186 mph (298 km/h) > table
on page 2715. You may not find
this information on all tires be-
cause it is not required by law.
The speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the >
219

Emergency assistance

> Reinstall the caps on the wheel bolts if neces-
sary.
> Store the vehicle tool kit in its designated
place.
> If the removed wheel does not fit in the spare
wheel well, store it securely in the luggage
compartment > page 64.
> Check the tire pressure on the installed wheel
as soon as possible.
> Check the tire pressure and store it in the Info-
tainment system.
> The wheel bolt tightening specification must be
90 ft lbs (120 Nm). Have it checked as soon as
possible with a torque wrench. Drive carefully
until then.
> Have the faulty wheel replaced as quickly as
possible.
Spare tire

General information
Applies to: vehicles with space-saving spare tire (compact
spare tire)

Fig. 191 Luggage compartment: spare tire
The spare tire is intended for short-term use on-
ly. Have the damaged tire checked and replaced if
necessary by an authorized Audi dealer or author-
ized Audi Service Facility as soon as possible.
There are some restrictions on the use of the
compact spare tire. The compact spare tire has
been designed specifically for your type of vehi-
cle. Do not replace it with the spare tire from an-
other type of vehicle.
248
Removing the spare tire
> Turn the handle > fig. 191 @ counter-clock-
wise.
> Remove the spare tire.
Removing the vehicle jack
> Lift up the cover on the right side of the lug-
gage compartment and remove the vehicle
jack.
Snow chains
For technical reasons, the use of snow chains on
the compact spare tire is not permitted.
If you have to drive with snow chains and a front
tire fails, mount the spare tire in place of a rear
tire. Install the snow chains on the rear tire that
you removed, and install that in place of the
front tire that failed.

ZA WARNING
— After installing a spare tire, the tire pressure
must be checked as soon as possible.
— Do not drive faster than 50 mph (80 km/h)
with a compact spare tire. Driving faster
than that increases the risk of an accident.
— To reduce the risk of an accident, avoid hard
acceleration or braking and driving fast
around curves with the compact spare tire.
— To reduce the risk of an accident, never drive
with more than one compact spare tire.
— Normal summer or winter tires must not be
mounted on the compact spare wheel rim.

Jump starting
You should only perform the steps that follow if
you have the necessary tools and technical ex-
pertise.

If the engine does not start because the vehicle
battery is drained, you can jump start your vehi-
cle using another vehicle. Jump start cables are
needed to do this.
Both vehicle batteries must have 12 V nominal
voltage. The voltage capacity (Ah) of the vehicle >

8S1012721BE
Emergency assistance

battery that is giving power must not be less
than the capacity of the drained vehicle battery.
Jump start cable
Only use a jump start cable with a large enough
diameter. Note the manufacturer's specifica-
tions.
Only use a jump start cable with insulated termi-
nal clamps.
Positive cable - usually red.
Negative cable - usually black.

ZA WARNING
— A drained battery can freeze at tempera-
tures around 32 °F (0 °C). If the vehicle bat-
tery is frozen, it must be thawed before con-
necting the jump start cables. If it is not, the
risk of an explosion and chemical burns in-
creases. After jump starting the vehicle,
drive to an authorized Audi dealer or author-
ized Audi Service Facility immediately to
have the vehicle battery checked.
— Read the warnings when working in the en-
gine compartment > page 200.
— Handling the jump start cables incorrectly
may cause the vehicle battery to explode
and lead to serious injuries.

@) Note
Jump start cables can cause considerable
damage to the vehicle electrical system if
they are connected incorrectly.
G) Tips
— There must be no contact between the
vehicles, or else voltage could flow when
connecting the positive terminal and drain
the vehicle battery of the vehicle providing
the jump start.
— The drained vehicle battery must be con-
nected correctly to the electrical system.
— Switch off electrical equipment that is not
needed.
arte la alate)

Both jump start cables must be connected in the
correct order.

Fig. 192 Engine compartment: connectors for jump start
cables or a charger




Fig. 193 Connecting the jump start cables
The jump start cable connections are located in
the engine compartment.
Follow the information about the vehicle battery
=> page 210.
Connecting the positive cable (red) to the
positive terminal
> Open the red cover on the positive terminal
> fig. 192.
1. Attach one end of the positive cable (red) to
the jump start connection @ > fig. 193 on
your vehicle.
2. Attach the other end of the positive cable
(red) to the positive terminal @) on the pow-
er source.
Connecting the negative cable (black) to the
negative terminal
3. Attach one end of the negative cable (black)
to the negative terminal @) on the power
source. >
249

Emergency assistance

4. Attach the other end of the negative cable
(black) to the jump start connection @ on
the vehicle.
Starting the engine
> Start the engine in the vehicle giving the charge
and let it run at idle.
> Now start the engine in your vehicle, which has
the
drained battery.
> If the engine does not start, stop the starting
procedure after 10 seconds and then repeat it
after approximately 30 seconds.
> Turn on the rear window defogger in your vehi-
cle in order to reduce any voltage peaks that
may occur when disconnecting the jump start
cables. The headlights must be switched off.
> With the engines running, remove the cables in
reverse order of the way they were installed.
> Close the red cover on the positive terminal.

ZA\ WARNING
— Never connect the jump start cable directly
to your vehicle battery. Only use the connec-
tions in the engine compartment.
— Do not touch the non-insulated parts of the
terminal clamps. The cable must also not
come into contact with vehicle components
that conduct electricity when it is connected
to the positive vehicle battery terminal. This
can cause a short circuit.
— The locking bolts on the battery cells must
be tightened securely.
— Keep ignition sources (open flames, burning
cigarettes, etc.) away from the vehicle bat-
teries to reduce the risk of an explosion.
— Route the jump start cables so they cannot
get caught in the moving parts in the other

vehicle's engine compartment.

C) Note
Please note that the connecting process previ-
ously described for the jump start cables is in-
tended for when your vehicle is being jump
started.
250
G) Tips
Make sure that the connected jump start ca-
bles have sufficient contact with metal.
Towing
General information
You should only perform the steps that follow if
you have the necessary tools and technical ex-
pertise.
Towing requires a certain amount of practice.
Audi recommends contacting a towing company
to have the vehicle transported.
You should only have your vehicle towed by an-
other vehicle when disabled in exceptional cir-
cumstances. Inexperienced drivers should not
tow.
Notes on towing
When the engine is stopped, the transmission
will not be sufficiently lubricated if traveling at
high speeds and long distances:
— The maximum permitted towing speed is 30
mph (50 km/h).
— The maximum permitted towing distance is 30
miles (SO km).
Additional information on towing with a tow
truck
The vehicle may only be towed with the front axle
raised. Do not wrap any chains or cables around
the brake lines.
If the vehicle should be towed with the axle
raised, then the ignition must be switched off to
reduce the risk of damage to the drivetrain.
Tow bar and towing cable
The vehicle can be towed with a tow bar or tow-
ing cable. Both drivers should be familiar with
the special considerations when towing, especial-
ly when using a towing cable.
Always make sure the traction force does not ex-
ceed the permitted level and there are no shock
loading conditions. There is always the risk of the >

8S1012721BE
Fuses and bulbs

Fig. 199 Left side of engine compartment: fuse assign-
ment.

No.


23 Engine start

341 Engine components, fuel injectors

35 Climate control system

36 Left headlight





3 | Drive system control module

Engine components, engine cooling, oil
temperature/oil level sensor

5 | Exhaust temperature sensor

Brake light switch

haust treatment
Engine cooling, oil pressure regulation, ex-

8 | Heated oxygen sensors

9 |Engine components, exhaust door

10 | Fuel pump

13 |Transmission fluid pump

15 |Horn

16 | Engine components

17 |Suppressor

18
garage door opener control module
Diagnostic interface, battery monitoring,

19 | Windshield wipers

20 | Anti-theft alarm system

21 | Automatic transmission control module


22 | Drive system control module, diagnosis

38

Right headlight

Bulbs
Your vehicle is equipped with maintenance-free
headlights and tail lights. However, if a light bulb
needs to be replaced, please contact an author-
ized Audi dealer or authorized Audi Service Facili-
ty.
255

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