2017 AUDI TT COUPE heater

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control unit "decides" whether to fire the front
airbags based on the information received from
the crash sensors. The control unit also "de­
cides" whether the safety be lt pretensioners
shou ld be activated.
- An Advanced Airbag with gas generator for the
driver inside the steering wheel hub.
- An Advanced Airbag with gas generator inside
the instrument panel for the front passenger.
- A capacitive passenger detection system under­
neath the front passenger seat cover. This sys­
tem measures the electrical capacitance of the
person in the seat. The information registered
is sent continuously to the electronic control
unit to regulate deployment of the front Ad­
vanced Airbag on the passenger side.
- An airbag monitoring system and indicator
light
El in the instrument cluster.
- A sensor in each front seat registers the dis­
tance between the respective seat and the
steering wheel or instrument panel. The infor­
mation registered is sent continuously to the
electronic control unit to regulate deployment
of the front Adv a need Airbags.
- The
PASSENGER AIR BAG OFF~; light comes
on and stays on in the headliner¢
page 209,
fig. 163 and tells you when the front Advanced
Airbag on the passenger side has been turned
off.
-A sensor in the safety belt latch for the driver
and for the front seat passenger that senses
whether that safety belt is latched or not and
transm its this information to the electronic
contro l unit.
A WARNING
Damage to the front passenger seat can pre­
vent the front airbag from working properly.
- Improper repair or disassembly of the front
passenger and driver seat will prevent the
Advanced Airbag System from functioning properly.
- Repairs to the front passenger seat must be
performed by qualified and properly trained
workshop personnel.
- Never remove the front passenger or driver
seat from the vehicle.
Airbag system
-Never remove the upholstery from the front
passenger seat.
- Never disassemble or remove parts from the
seat or disconnect wires from it.
- Never carry sharp objects in your pockets or
put them on the seat. The capacitive pas­
senger detection mat in the front passenger
seat will not function properly if it is punc­
tured.
- Never carry things on your lap or carry ob­
jects on the front passenger seat. Such ob­
jects can influence the capacitance regis­
tered by the capacitive passenger detection
system, so that incorrect information is pro­
vided to the airbag control unit.
- Never store items under the front passenger
seat. Parts of the Advanced Airbag System
under the passenger seat could be dam­
aged , preventing them and the airbag sys­
tem from working properly.
- Never place seat covers or replacement up­
holstery that have not been specifically ap­
proved by Audi on the front seats.
- Seat covers can prevent the Advanced Air­
bag System from recognizing child re­
straints or occupants on the front passenger
seat and prevent the side airbag in the seat
backrest from deploying properly.
- If a seat heater has been retrofitted or oth­
erwise added to the front passenger seat,
never install any child restraint system on
this seat.
- Never use cushions, pillows, blankets, or
similar items on the front passenger seat.
The additional layers prevent the capacitive
passenger detection system from accurately
measuring the capacitance of the child safe­
ty seat and/or the person on the seat and
thus keep the Advanced Airbag System from
working properly.
- Never place or use any electrical device
(such as a laptop, CD player, electronic
games device, power inverter or seat heater
for child seats) on the front passenger seat
if the device is connected to the 12-volt
socket or the cigarette lighter socket. Such
devices can influence the capacitance regis­
tered by the capacitive passenger detection
205

Airbag syste m
front seat p assenge r's frontal Advanced Airbag.
Th e PAS SENGER AIR BAG OFF~; light:
-will come o n if the front pa ssenger seat is not
occupied;
- will come on if the e lectr ica l capacitance meas­
u red by the c apac itive passenger detec tion sys ­
tem for the front passenger seat equals the
combined capacitance of an infant up to about
one year of age and one of the rearward-facing
or forward-facing child rest raints listed in Fed­
eral Motor Vehicle Safety Standard 208 with
which the Advanced Ai rbag System in your veh i­
cle was certif ied; Fo r a listing of the child re­
straints that were used to cert ify your vehicle's
compliance with the U .S. Safety Standard
¢ page 223.
-will go out if the front passenger seat is occu­
pied by an adult as reg istered by the capacitive
passenger detection system.
- T he
PAS SENG ER AIR BAG OFF~; light must
come on and s tay o n if the ignition is on and . ..
- a car bed has been insta lled on the front pas­
senger seat, o r
-a rearward-fac ing ch ild restrai nt has been in­
stalled on the front passenger seat , or
- a forward-facing child restra int has bee n in stal ­
led on the front passenger seat,
- and if the e lectrical capacitance registered on
the front passenger seat is equa l to or less than
the comb ined capac itance of a typical 1 year­
o ld infant and one of the rearward-fac ing o r
fo rward -fa cing chi ld restrain ts lis ted in Federal
Motor Veh icle Safety Standard 208 with w hich
the Advanced Airbag System in yo ur vehicle was
certified .
I f the fron t passe nger seat is no t occ upied, the
front ai rbag w ill not dep loy, and the
PASSENGER
AIR BAG OFF~;
light wi ll stay on.
Never i nstall a rearward-facing child rest raint on
t he front passenge r sea t, the safes t place for a
chi ld in any kind of child restraint is at one o f the
seating positions on the rea r seat ¢
page 198,
Child restraints on the front seot -some impor­
tant things to know
and ¢ page 221, Child safe ­
ty .
210
If the PASSENGER AIR BAG OFF~; light
com es on ...
If the PASSENGER AIR BAG OFF~; light comes
on when one of the condit ions listed above is
met, be sure to check the light regularly to make
certain t hat the
PASSENGER AIR BAG OFF~;
light stays on cont inuously whenever the ign ition
i s on . If the
PASSENGER AIR BAG OFF~; light
does not appear on and does not stay on all the
time, stop as soon as it is safe to do so a nd
- reactivate the system by tur ning the ignit ion
off for more than 4 seconds and then tur ning it
on again;
- remove and re install the ch ild restraint. Make
sure that the child restra int is prope rly insta l­
led and that the safety belt for the front pas­
senge r sea t has bee n corre ct ly rou ted th rough
t he child restraint as desc ribed in the ch ild re­
straint man ufact urer's inst ruc tions;
- ma ke sure that the convert ible loc king retr ac­
to r on the safety belt for the front passenge r
seat has been activated and that the safety belt has been pulled tight .
- ma ke sure that no e lectrica l device (s uch as a
laptop , CD p layer , e lectronic games device,
power inverte r or seat heater for chi ld seats) is
placed or used on the front passenger seat if
the device is connected to the 12-volt socket or
the c igarette lighter socket;
- make sure that no seat heater has been retro­
fitted or otherw ise added to the front passen­
ger seat;
- make sure that noth ing can interfere with the
safety belt buckles and that they are not ob­
struc ted;
- make sure that there are no wet objects (such
as a wet towe l) and no water or other liquids on
the front passenger seat cushion .
If the PASSENGER AIR BAG OFF~; light still
does not come on ...
If the PASSENGER AIR BAG OFF~; light st ill
does not come on and does not stay on cont in u­
ous ly (when the ign ition is switched o n),
- take the child restra int off the front passenger
seat and install it properly at one of the rear
ll-

Child safety
A WARNING
Children on the front seat of any car even with
Advanced Airbags can be seriously injured or
even killed when an airbag inflates. A child in
a rearward-facing child safety seat installed
on the front passenger seat will be seriously
injured and can be killed if the front airbag in­
flates.
- The inflating airbag will hit the child safety
seat or infant carrier with great force and
will smash the child safety seat and child
against the backrest, center armrest, or
door.
- Always install rear-facing child safety seats
on the rear seat.
-If you must install a rearward facing child
safety seat on the front passenger seat in
exceptional circumstances and the
PASSEN­
GER AIR BAG OFF~;
light does not come
on and stay on, immediately install the rear­
facing child safety seat in a rear seating po­
sition and have the airbag system inspected
immediately by your Audi dealer.
A WARNING
- Forward-facing child seats installed on the
front passenger seat may interfere with the deployment of the airbag and cause serious
personal injury to the child.
- If exceptional circumstances require the use
of a forward-facing child restraint on the
front passenger's seat, the child's safety and well-being require the following special
precautions to be taken:
- Always make sure that the forward-facing
seat has been designed and certified by its
manufacturer for use on a front passenger
seat with a front and side airbag.
-Always carefully follow the manufacturer's
instructions provided with the child seat
or infant carrier.
- Never install a child restraint without a
properly attached top tether strap if the
child restraint manufacturer's instructions
require the top tether strap to be used.
222
-Never put the forward-facing child re­
straint up against or very near the instru­
ment panel.
- Always move the front passenger seat to
the highest position in the up and down
adjustment range and move it back to the
rearmost position in the seat's fore and
aft adjustment range, as far away from
the airbag as possible, before installing
the forward-facing child restraint.
-Always make sure that the safety belt up­
per anchorage is behind the child restraint
and not next to or in front of the child re­
straint so that the safety belt will be prop­
erly positioned.
- Always make sure that nothing prevents
the front passenger's seat from being
moved to the rearmost position in its fore
and aft adjustment range.
- Never place objects on the seat (such as a
laptop, CD player, electronic games de­
vice, power inverter or seat heater for
child seats). These may influence the elec­
trical capacitance measured by the capaci­
tive passenger detection system and can
also fly around in an accident and cause
serious personal injury.
- Never place or use any electrical device
(such as a laptop, CD player, electronic
games device, power inverter or seat heat­
er for child seats) on the front passenger
seat if the device is connected to the 12-
volt socket or the cigarette lighter socket.
-If a seat heater has been retrofitted or
otherwise added to the front passenger
seat, never install any child restraint sys­
tem on this seat.
- Make sure that there are no wet objects
(such as a wet towel) and no water or oth­
er liquids on the front passenger seat
cushion.
- Always make sure that the
PASSENGER
AIR BAG OFF~;
light comes on and stays
on all the time whenever the ignition is
switched on.
- If the PASSENGER AIR BAG OFF,;; light
does not come on and stay on, immediate- ly install the forward-facing child seat in a
~

Child safety
-The inflating airbag will hit the child safety
seat or infant carrier with great force and
will smash the child safety seat and child
against the backrest, center armrest, door
or roof .
- Always install rear-facing child safety seats
or infant carriers on the rear seat .
- Make sure there is enough space in front of
the child in the child seat . If necessary, ad­
just the angle and position of the seat in front of the child seat.
- Forward -facing child safety seats installed
on the front passenger's seat can interfere
with the airbag when it inflates and cause serious injury to the child . Always install for­
ward-facing child safety seats on the rear
seat.
- If exceptional circumstances require the use
of a forward-facing child restraint on the
front passenger's seat, the child's safety and well-being require that the following
special precautions be taken:
- Make sure the forward-facing seat has
been designed and certified by its manu­
facturer for use on a front seat with a pas­ senger front and side airbag .
- Always carefully follow the manufacturer's
instructions provided with the child safety
seat or carrier .
- Always move the front passenger seat into
the rearmost position of the passenger
seat's fore and aft adjustment range, and
as far away from the airbag as possible be­
fore installing the child restraint.
- Always make sure that nothing prevents
the front passenger's seat from being
moved to the rearmost position in its fore
and aft adjustment range .
- Always make sure that the backrest is in
the upright position .
- Never place or use any electrical device
(such as a laptop, CD player, electronic
games device, power inverter or seat heat­
er for child seats) on the front passenger
seat if the device is connected to the 12-
volt socket or the cigarette lighter socket.
- If a seat heater has been retrofitted or
otherwise added to the front passenger
226
seat, never install any child restraint sys­
tem on this seat.
- Make sure that there are no wet objects
(such as a wet towel) and no water or oth­
er liquids on the front passenger seat
cushion.
- Never place objects on the seat (such as a
laptop, CD player, electronic games de­
vice, power inverter or seat heater for
child seats) . These may influence the elec­
trical capacitance measured by the capaci­
tive passenger detection system and can
also fly around in an accident and cause
serious personal injury.
- Always buckle the child safety seat firmly in
place even if a child is not sitting in it. A
loose child safety seat can fly around during
a sudden stop or in a collision .
-Always read and heed all WARNINGS when­
ever using a child restrained in a vehicle is
being used
c::!;> page 189, Safety belts,
c::!;> page 197, Airbag system and
c::!;> page 221, Child safety .
A WARNING
To reduce the risk of serious injury, make sure
that the
PASSENGER AIR BAG OFF '-i; light
comes on and stays on whenever a child re ­
straint is installed on the front passenger seat
and the ignition is switched on.
-Take the child restraint off the front passen­
ger seat and install it properly at one of the
rear seat positions if the
PASSENGER AIR
BAG OFF
'-i; light does not stay on .
- Have the airbag system inspected by your
authorized Audi dealer immediately.

Child safety
_& WARNING
Not using a child safety seat, using the wrong
child safety seat or improperly install ing a
child restra int increases the risk of serious
personal injury and death in a crash.
- Never install rear-facing child safety seats or infant carr iers on the front passenger
seat -
even with an Advanced Airbag System.
A chi ld will be seriously injured and can be
k illed when the inflating airbag hits the
child safety seat or infant carrier with great
force and smashes the child safety seat and
child against the backrest, center armrest,
door or roof
c::> page 198, Child restraints on
the front seat -some important things to
know.
- Always install rear-facing child safety seats
or infant carr iers on the rear seat.
- Never install a rear-facing child restraint in
the forward-facing direction. Such restraints
are designed for the spec ial needs of infants
and
very small children and cannot protect
them properly if the seat is forward-facing.
- If you must install a rearward fac ing ch ild
safety seat on the front passenger seat be­
cause of exceptional circumstances and the
PAS SENGER AIR BAG OFF~; light does not
come on and stay on, immed iate ly install
the rear-facing child safety seat in a rear
seat ing position and have the airbag system
inspected by your Audi dealer.
- Never place or use any electrical device (such as a laptop, CD player, electronic
games device, power inverter or seat heater
for child seats) on the front passenger seat
if the device is connected to the 12-volt
socket or the cigarette lighter socket.
- If a seat heater has been retrofitted or oth­
erwise added to the front passenger seat,
never install any ch ild restraint system on
th is seat.
- Make sure that there are no wet objects
(such as a wet towel) and no water or other
liquids on the front passenger seat cushion.
- Never place objects on the seat (such as a
laptop, CD player, electronic games dev ice,
power inverter or seat heater for child
228
seats). These may inf luence the electrical
capacitance measured by the capacitive pas­
senger detect ion system and can also fly
around in an accident and cause serious per­
sonal injury.
-Always read and heed all WARNINGS when­
ever using a child restrained in a vehicle is
be ing used
c::> page 189, Safety belts,
c::>page 197, Airbag syste,n
and
c::>page 221, Important information.
Convertible child safety seats
Properly used convertible child safety seats can
help protect toddlers and children over age one who weigh between 20 and 40 lbs (9 and 18 kg)
in a crash.
Fig . 172 Schematic overview: installat ion of the attach­
me nts applicable to a LATCH seat
Fig. 173 Schemat ic overv iew: installation of the seat using
the vehicle's safety belt system
.,. When using the vehicle safety belt to install a
child safety seat, you must first activate the
convertible locking retractor on the safety belt
to prevent the child safety seat from moving
c::>page 232 or install the seat using the LATCH
attachments.
.,. Push the child safety seat down wi th yo ur full
weight to get the safety belt rea lly tight so that
Iii>

Child safety
-If a seat heater has been retrof itted or oth­
erwise added to the front passenger seat,
never install any child restraint system on
this seat .
- Make sure that there are no wet objects
(such as a wet towe l) and no water or other
liquids on the front passenger seat cushion .
- Never place objects on the seat (such as a
laptop, CD player, electronic games device,
power inverter or seat heater for child
seats) . These may influence the e lectr ica l
capacitan ce measured by the capacitive pas­
senger detection system and can also fly
around in an acc ident and ca use serio us pe r­
sonal injury .
- Make s ure tha t the
PASSENGER AIR BAG
OFF ~;
light comes on and stays on a ll the
time whenever the ignition is switched on.
- If the PASSENGER AIR BAG OFF 1i; light
does not come on and stay on, immediate ly
insta ll the forward-facing child seat at a
seating position on the rear seat and have
the a irbag system inspected by your author­
ized Audi dealer.
- Take the ch ild restraint off the front passen­
ger seat and install it properly at one of the
rear seat positions if the
PASSEN GER AIR
BAG OFF ~;
light does not stay on whenever
the ignition is switched on .
Booster seats and safety belts
Properly used booster sea ts can help protect
children weighing between about 40 lbs and
80 lbs (18 kg and 36 kg) who are less than 4 ft 9
in (57 in/1 .45 m) tall.
F ig . 17 4 Rea r seat: chi ld p roper ly restra ined in a booster
seat
230
The vehicle's safety belts alone wi ll not fit most
children until they are at least 4
ft 9 in (57 in/
1.45 m) tall and weigh about 80 lbs (36 kg) .
Booster seats raise these children up so that the
safety be lt will pass properly over the stronger
parts of their bodies and the safety belt can help
protect them in a crash.
.. Do not use the convertib le locking retractor
when us ing the ve hicle's safety belt to restra in
a child on a booster seat .
.., The shoulder belt must lie as close to the cen­
ter of the child's collar bon e as possib le and
must l ie flat and snug on the uppe r body.
It
must never lie across the throat or neck. The
lap belt must lie ac ross the pelvis and never
across t he stomach or abdomen . Make sure the
belt lies flat and snug. Pu ll on the belt to tight­
en if necessary.
.. Secure unused safety belts on the rear seat
¢page 227.
Children up to at least 8 years o ld (over 40 lbs or
18 kg) are best protected in child safety seats de ­
s igned for their age and weight. Experts say that
the skeletal structure, part icu larly the pelvis, of
these children is not fully developed, and they must not use the vehicle safety belts without a
su itab le child restra int.
It is usually best to put these children in appro­
pr iate booster seats . Be sure the booster seat
meets a ll applicab le safety standards .
Booster seats raise the seating position of the
c hi ld and reposition both the lap and shoulder
parts of the safety belt so that they pass across
the chi ld's body in the right places . The rou ting of
the be lt over the ch ild's body is very important
fo r the child's protection, whet he r or not a boos ­
ter seat is used. C hildren age 12 and under m ust
a lways ride in the rear seat.
Never use the lap belt port ion of the vehicle's
safety belt alone to restra in any child, regard less
of how b ig the child is. A lways remember that
c hi ldre n do not have the pronounced pe lvic struc ­
ture requ ired for the proper function of lap belt
portion of the vehicle 's three point lap and
shou lder belts. The chi ld's safety absolutely re­
quires that a lap belt port ion of the safety belt be ...,

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able to provide you with more in­
formation .
® Mud and snow capability
"M/5" or "M+S" indicates the tire
has properties making it suitable
to drive in mud or snow .
& indi­
cates a winter tire .
@Composition of the tire cord
and materials
The number of plies indicates the
number of rubberized fabric lay­
ers in the tire. In general: the
more layers, the more weight a
tire can carry . Tire manufacturers
must also specify the materials
used in the tire. These inc lude
steel, nylon, polyester and other
materials.
@ Maximum permitted load
This number indicates the max i­
mum load in kilograms and
pounds that the tire can carry.
@ Uniform tire quality grade
standards for treadwear,
traction and temperature resistance
Tread wear, traction and temper ­
ature ranges
¢ page 271.
@ Running direction
@ Maximum permitted
inflation pressure
Wheels
This numbe r ind icates the maxi­
mum pressure to which a t ire can
be in flated unde r normal operat­
ing conditions.
Glossary of tire and loading
terminology
Accessory weight
means the comb ined we ight (in
excess of those standard items
which may be replaced) of auto­
matic transmission, power steer­
ing , power brakes, power win­
dows, power seats, radio, and heater, to the extent that these
items are available as facto ry- in­
s t alled equipment (whether in ­
stalled or not) .
Aspect ratio
means the ratio of the height to
the w idth of the tire in percen t.
Numbers of 55 or lower indicate a
lo w sidewall for improved stee r­
ing response and better overa ll
handling on dry pavement.
Bead
means the part of the tire that is
made of steel wires , wrapped or .,.
257

Fuses and bulbs
Interior fuse assignment
Fig. 215 Vehicle inter ior: fuse assignme nt
No. Equipment
Fl Power top control modu
le (Roadster)
F2 Power top control module (Roadster)
F3 ESC control module
F4 Central computer processor (MIB-2)
FS Gateway
F6 Anti-theft alarm system Climate control system, selector lever (au-
F7 tomatic transmission), parking heater,
rear window heater relay coil
Diagnos is, electrical parking brake switch,
F8 light swi tch, rain/light sensor, interior
lighting
F9 Steering column switch module
Fl0 Display
F ll Haldex clutch
F12 MMI area
F 13 Adaptive dampers control module
F14 Climate control system blower
FlS Electronic steering co lumn lock
F16 MMI components, safety be
lt microphone
(Roadster)
290
No . Equipment
F17 Instrument cluster
F18 Rearview camera
F19 Convenience key system control module
F20 Power lumbar support adjustment
F22 Front passenger's side neck heating (Road-
ster)
F23 R
ig ht exterior lighting, on-board compute r
(right)
F 25 Driver's s
ide door (for example power win-
dows)
F26 Seat heating
F28 AMI H igh med ia port
F29 On-board computer
F31 Left on-board computer
F32 Driver assistance systems
F33 Airbag
Socket relay, interior sound, back-up light
F34 switch, temperature sensor, oil level sen-
sor
Diagnosis, headlight range control system,
F35 air quality sensor, automatic dimming
rearview mirror
F36 Right cornering light/ r ight LED-h eadlight
F37 Left cornering light/ left LED-headlight
F38 E
ng ine control module, ESC control mod-
ul e
F39 Front passenger's side door (for example
power windows)
F40 Cigarette lighter, sockets
F41 SCR relay and delivery unit
F42 Central locking area
F43 On-board computer
F45 Power adjustable driver's side seat
F46 Driver's side neck heat ing (Roadster)
F49 Starter, clutch sensor
FS0 ESC valves
F53 Rear window defogger
The power seats* are protected v ia
circuit break­
ers
that automatically switch on after a few sec­
onds after the overload has been reduced .