steering wheel AUDI TT ROADSTER 2014 Owner's Manual

182 Tire s and wheel s
-Never mount used tires on yo ur vehicle if
yo u are not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden t ire failure
and loss of vehicle control.
- If you notice unusual vibration or if the
vehicle pulls to one side when driving, al­
ways stop as soon as it is safe to do so
and check the wheels and tires for dam­
age.
(D Note
Please note that summer and wi nte r tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight
means t he comb ined we ight (in excess of
those sta ndard items which may be rep laced)
of au toma tic tra nsmission, power s teer ing,
power brakes, power windows, power seats,
ra dio, and heater, to the extent that th ese
items are availab le as factory -installed equip­
ment (whether installed or not) .
Aspect ratio
means t he ratio of the he ight to the w idth of
the tire in percent . Numbers of 55 or lower in ­
dicate a low sidewall for improve d steering re­
sponse and better overall handling on dry pavement .
Bead
means the part of the ti re that is made of
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the rim.
Bead separation
means a b reakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire . typ
ica l in those seasons . Aud i recommends
using winter tires during the winter
months . Low temperatures signif icant ly
decrease the e lasticity of summer tires,
which affects tract ion a nd brak ing ability.
If summer tires are used in very co ld tem­
peratures, cracks ca n form on the tread
bars, res ulting in permanent tire damage
that can cause loud driving no ise and un­
balan ced t ires. Audi i s not responsible for
th is type of damage .
Cold tire inflation pressure
means the tire p ress ure recommended by t he
vehicle manufacture r fo r a tire of a des igna ted
s iz e t hat has not bee n driven for more than a
coup le of miles (k ilometers) at low speeds in
t h e three hour period before the tire pressure
is measured or adjusted.
Curb weight
mea ns the we ight of a motor ve hicle with
standard equipment in clu din g the max imum
capacity of fuel, oil, and coolant, air condi ­
tioning and additional weight of optiona l
equipment.
Extra load tire
me ans a tire designed to ope rate a t higher
loads and at highe r inflation p ress ures than
the corresponding standard tire. Extra load
tires my be identified as "XL", "xl", "EXTRA
LOAD", or "RF" on the sidewall.
Gross Axle Weight Rating ("GAWR ")
me ans the lo ad -c a rry ing c apac ity of a s ingle
axle system , measured a t the tire-ground in­
terfaces.
Gross Vehicle Weight Rating ("GVWR ")
mea ns the max imum total loaded we ight of
t h e ve hicl e. .,.

Tire service life
The service life of tires depends on a lot of
different things including proper installation
and balancing, correct tire pressure and driv­
ing style.
F ig. 14 0 Tire tread: tread wea r ind ica tors (TWI)
f ~----~
~ ------- .../
Fig. 141 Rotat ing t ires fo r m ore even wea r
Tread Wear Indicator (TWI)
The origina l tires on your veh icle have
1/16 in ch (1.6 mm) high "wear ind icators"
c::> fig . 140 run ning across the tread. Depend ­
ing on the make, there will be six to eight of
them evenly p laced around the t ire . Marks on
the t ire s idewall (for example "TWI" or other
symbols) indicate the positions of the tread
wear ind icators . Worn t ires must be replaced.
Different fig ures may apply in other countries
c::> & .
Tir e pressure
Incorrect tire pressure causes premat ure wear
and can cause sudden tire blow-out . For th is
reason, tire pressure must be checked at least
once a month
c::> page 18 7.
Dri ving sty le
Driving fast around curves , heavy acceleration
and hard braking increase tire wear.
Tires and wheels 191
Rotating tires for more even wear
For all four tires on your ve hicl e to have the
same service life, we recomme nd that the
front and rear tires are rotated according to
the tire manufacturer 's suggested tire rota­
tion inte rvals. Please remember the follow ­
ing :
- Tire rotation intervals may differ from the
veh icle service inte rva ls o utlined in your
Warranty & Maintenance Booklet.
- The longer one tire is used in one location
on the vehicle, the more it wears at certain
points ; therefore, we recommend that you
follow the tire manufactu rer 's suggested
tire rotation intervals .
- Vehicles w ith front-wheel dr ive exper ience
more tread wear on the front wheels com­
pared to all -wheel d rive (quattro) .
- Please rotate tires as shown
c::> fig. 141.
-Extra care must be taken when rotat ing di-
rection-specific tires
c::> page 212.
Wheel balancing
T he wheels on new veh icles are balanced .
However, various situations during everyday
driving can cause them to become unba l­
anced, resulting in vibrat ions you can usually
feel through the steer ing wheel.
Unbalanced wheels must be rebalanced to
avoid excessive wear on steering, s uspension
and t ires. A whee l must also be reba lanced
when a new tire is insta lled.
Inco rrect wheel alignm ent
Incorrect wheel alignment can cause exces­
sive tire wear, impai ring the safety of the vehi­
cle . If tires show excessive wear, have the
whee l alignment checked by an authori zed
Audi dealer or qualified workshop.
all -wheel drive
Vehicles wi th quattro must always have tires
of the same size, construction and tread type. For details see
c::> page 147.

When it i s not po ssibl e to co ntinu e
d riv ing, even with run-fl at ti res?
-If the E lectronic Stabilization Control (ESC)
is not working or keeps coming on.
- If the Tire P ressure Monitoring System does
not work .
- If the tire has been severely damaged, in a
crash, for example. The tread can separate
from a damaged tire as the whee l turns, and
hit parts of the vehicle, such as the fuel tank
filler neck, fuel lines or brake lines.
- Do not continue dr iving if severe vibration
occurs or if the tire starts to smoke because
the tire is runn ing hot .
- Do not continue driving if damage to the
tire, such as cracks in the sidewall, appears.
A WARNING
Improper use of run-flat t ires can cause
vehicle damage that can lead to loss of ve­
hicle control, a crash and serious personal
injury.
- Run-flat tires can only be used with spe­
c ial rims.
- Run-flat tires must always be mon itored
with a properly programmed Tire Pre­
ss ure Mon itor ing System.
- Always inspect a tire that has lost air to
make su re it is safe to drive w ith the t ire
in the run-flat mode.
- Never drive with run-flat tires that have
been damaged in a collision.
- Never drive with run-flat tires if heat
build-up causes the t ire to give off
smoke.
- Never drive with run-flat tires if the vehi­
cle shakes or v ibrates severely.
- Never drive with a run-flat tire that de­
velops sidewall cracks or other damage
wh ile in use .
- If you switch between standard and run­
flat tires, an author ized Audi dealer or
qualified wo rkshop must reprogram the
control module.
Tire s an d wheel s 203
@ Note
Run-f lat ti res have special characteristics
and requirements, that are very different
from convent ional tires. Run-flat tires re­
quire special rims for run-flat use and can­
not be used on conventional whee l rims .
(D Tips
- If you are not able to cont inue driving
w ith run-flat tires, please seek professio­
nal ass istance.
- Please contact your authorized Audi
dealer or Aud i of America, Inc . if you
have questions about t ires and rims.
Driving with run-flat tires
Applies to veh icles: w it h Run -flat t ires
Handling characteristics change when tire
pressure is low.
Driving on tires with low tire pressure changes
the way a veh icle handles, particularly when
corner ing and braking. The handling charac­
teristics of run -flat tires do not seem to
change a lot even when driving on low pres­
sure or in the run-flat mode . Nevertheless you
must still take specia l precautions whe n oper ­
at ing a veh icle on run-flat tires when t ire pres­
s u re is low o r the tire(s) is flat:
" The Electronic Stabilization Contro l (E SC)
must be switched on.
" Never drive fas ter than 50 mph (80 km/h)
q .&_ .
"Plan ahead when driving and anticipate
what you will have to do considering traffic
and road conditions up ahead.
" Accelerate carefully.
" Avo id unnecessary and sudden steering and
braking maneuvers.
" Reduce your speed in plenty of t ime before
intersections, curves and other places where
you may have to react quickly .
Please see:
q page 203, When it is not possi­
ble to continue driving, even with run-flat tires?
•
•
...

230 Index
A
A/C operation . . . . . . . . . . . . . . . . . . . . . . . 71
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 228
Acoustic park assist ........ .. .. .. .. . . 80
Adaptive light . . . . . . . . . . . . . . . . . . . 21, 49
Adding Eng ine coolant .............. ... .. .
Engine oil .. ..... ........... ... .. .
Windshield washer fluid ... .. .. .... .
Additional accessories
Addit ives
Engine oil . ...... ......... ... .... .
Adjustab le steer ing column ...... .. ... .
Adjusting front seats ....... .. .. .. .. . . 173
170
180
228
170 73
60
Adj usting steering column ... .... .... .. 73
Adjusting the seats ............... ... . 61
Advanced Airbag System Children 131
Components ............. .. .. .... . 115
Front airbags . ............. .. .... . 113
H ow the components work together . . 117
Monitoring .... ... ... .... .. .. .. .. . 119
Weight -se nsing mat ...... .. .. .. .. . 131
Airbag system . . . . . . . . . . . . . . . . . 109, 128
Care . .. .. .. ............... .. .... . 122
Ch ild restra ints .............. ... .. . 132
Components (front airbags) .. .. .. .. . 115
Danger of fitting a child safety seat on
the front passenger seat . . . . . . . . . . . . 110
Disposal ................ .. .. .... . 122
Fr ont airbags ..................... 113
How do the front airbags work? .. ... . 118
How many airbags does my vehicle
have? ... .. ............. .. .. .. ... 115
Important safety instructions on the knee airbag system ..... .. .. .. .. .. . 126
Important things to know ...... .. .. . 109
Indicator l ight .... ... .... .. .. .. .. . 119
Knee airbags ............. .. .. .. .. . 124
Monitoring ... ............. .. .... . 119
PASSENGER AIR BAG OFF light .. ..... 120
Repairs .... ................ ..... . 122
Side airbags . . . . . . . . . . . . . . . . . . . . . . 126
Warning/indicator lights ............. 15
When must the system be inspected? 119
A lcantara
C leaning ... .. .............. ..... . 158 All-wheel drive
.... ............. .... 147
Winter tires ..... ................ . 196
Alternator .. .... .. ............. .... . 16
Anti-free ze
refer to Eng ine cooling system . .. .. .. 172
Anti -lock brake system . . . . . . . . . . . . . . . 142
Warning/indicator lights ............. 18
Anti-s lip regulation ............. .... 142
Anti-theft systems Anti -theft alarm system ............. 38
Electronic immobilizer .......... .. .. . 33
Ashtray ... ..... .. .. .............. .. 64
Asterisk What does it mean when something is
marked with an asterisk? . . . . . . . . . . . . . . 6
Audi magnet ic r ide . . . . . . . . . . . . . . . 21, 80
Description . . . . . . . . . . . . . . . . . . . . . . . . 80
Indicator light . .. .. ........... .. .. . 21
Audi Service Repair Manuals and Li tera-
ture 226
Automatic be lt retractor ............ . 104
Automat ic convert ible top
closing
. .. .. .. .. ............. .. .. . 43
opening .. .. .. .. ................ .. 43
Automat ic transmission . . . . . . . . . . . . . . . 82
Driving Notes . . . . . . . . . . . . . . . . . . . . . . 84
Emergency program ........... .. .. . 87
Emergency release ............. .. .. . 87
Ignit ion key safety lock ........... .. . 74
Kick-down ..... .. ................ .. 86
Launch Control Program ............. 86
Se lector lever lock . . . . . . . . . . . . . . . . . . 83
Se lector lever positions ......... .. .. . 82
Tiptronic .. .... .. ............. .... . 85
T iptronic controls on the steering wheel 86
Auto Safety Hotline ................ .. 99
Average fuel mileage ............ .... . 23
Average speed . . . . . . . . . . . . . . . . . . . . . . . 23
Avoid damaging the vehicle ........ ... 151
B
Battery ...................... 175,178
Charg ing .. .... .. ............. .... 179
Checking battery acid level .......... 178
Connecting . ..... ................ . 175
Disconnecting 175

238 Index
Safety instructions
Engine compartment . ... .. .. ... ... . 165
for using ch ild safety seats ... .. .... . 133
For using safety belts ..... .. .. .... . 103
Monitoring the Advanced Airbag Sys-
tem ... .. .. ................ ... ... 121
Safety lock (Ignition key) . ... .. .. .... . . 74
Seat adjustment Driver's seat . . . . . . . . . . . . . . . . . . . . . . . 60
Fr ont passenger's se at ... .. .. .. .. .. .. 6 1
Fr ont seats . . . . . . . . . . . . . . . . . . . . . . . . 60
Head restraints . . . . . . . . . . . . . . . . . . . . 95
H ead restraints, front seat . . . . . . . . . . . 63
Manual controls .......... .. .. .. .. .. 61
Power seats . . . . . . . . . . . . . . . . . . . . . . . 62
Safety guidelines .............. ..... 60
Seat covers Cleaning ... ... . ...... ... .. .. .... . 158
Seating capacity
Seating position 10
1
Driver ... .. ................ ... .... 93
F ront passenger . . . . . . . . . . . . . . . . . . . . 94
H ow to adjust the front seats . . . . . . . . . 94
I n co rrect seat posi tion . . . . . . . . . . . . . . . 96
Occup ants .. .. . .......... .. .. .. .. .. 93
Seats Number of seats ... ...... .. .. .. .. . 10 1
Selector lever emergency release . . . . . . . 87
Selecto r leve r pos it ions . . . . . . . . . . . . . . . 8 2
Service and disposal
Safety belt pretens ioner ....... .. ... 107
Service interval disp lay . ... .. .. ... ... .. 28
Service pos it ion for w indshie ld w ipers . .. 56
Set menu .. ................. .. .... .. 26
Sett ing
Date display . . . . . . . . . . . . . . . . . . . . . . . 1 1
Dig ita l clock . . . . . . . . . . . . . . . . . . . . . . . 11
Shut ting down veh icle ............... 152
Side airbags
Descr ipt ion . .............. ... .. ... 126
H ow t hey wo rk ..... ...... .. .. .. .. . 128
Side marker lights ................... 48
Ski bag .. .... ... .......... .. .. .. .. .. 63
Snow chai ns .... .... ...... .. .. .. .. . 197
Sockets ..... ... .. ..... ... .. .. .... .. 65
Sound system display . . . . . . . . . . . . . . . . . 2 2 Sources of informa
tion abo ut child re -
stra ints and their use .... ..... ... .. .. 141
Speedometer . . . . . . . . . . . . . . . . . . . . . . . 12
Speed rating letter code .......... .... 193
Speed warning system . .. ..... ... .. .. . 76
S po rt button . . . . . . . . . . . . . . . . . . . . . . . . 80
Sport mode . . . . . . . . . . . . . . . . . . . . 80, 144
Star ting ass ist ance . ............. .. .. 218
Starting on hills
Hill ho ld assist . . . . . . . . . . . . . . . . . . . . . 76
Starting the engine . . . . . . . . . . . . . . 73, 74
What should I do if the engine does not
start? .. .. .. .. .. ............. .. .. . 74
Stee ring
refer to Electro -mechanical power as -
sist . . . . . . . . . . . . . . . . . . . . . . . . . 17, 146
Stee ring co lumn
Adjus ting . .... .. .. ........... .... . 73
L ocking the stee ring . . . . . . . . . . . . . . . . 73
Steps for determin ing cor rect load limit . 190
Stopping the engine . ... ...... ... .. .. . 75
Storage .. .. .. .. .. .. ... ........ .. .. . 66
C ompartmen t in t he front sea ts . . . . . . . 66
C up ho lde r .... .. .. ... ..... ... .. .. . 64
G love compartment . . . . . . . . . . . . . . . . . 66
S t ronic ..... ... .. .. ........ ...... .. 82
Dr iving Note s .. .. ............. .... . 84
Emergen cy prog ram ........... .. .. . 87
E mergency release . .. .. ..... .... . .. . 87
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . . 86
La unch Control Program ..... ... .. .. . 86
Se lector lever lock . . . . . . . . . . . . . . . . . . 83
Se lector lever positions . . . . . . . . . . . . . . 82
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . 85
T iptronic co ntrols o n the steering wheel 86
Sun visors . ..... .. .. ... ..... ... .. .. . 54
Symbols Re d symbo ls in the ce nte r d isplay . .... . 13
Ye llow symbo ls in the cente r display . .. 13
also refer to Warning/Indicator lights .. 12
T
Tacho meter . . . . . . . . . . . . . . . . . . . . . . . . . 10
Tail lights
Cleaning ......... ............... . 156