2018 AUDI TT ROADSTER sensor

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with deployed side airbags. Remember too, side
airbags wi ll deploy on ly once and on ly in certain
kinds of acc idents -your safety be lts are always
there to offer protection.
Vehicle damage, repair costs or even the lack of
ve hicle damage are not necessarily an indication
of over-sensitive or failed airbag act ivation. In
some collisions, both front and side a irbags may
inflate. Remember too, that airbags will deploy
only once and only in ce rtain kinds of coll is ions
-
your safety belts are always there to offer protec­
tion in those acc idents in which airbags are not
supposed to deploy or when they have already
deployed.
The side airbag system will not deploy:
-when the ign ition is switched off
-in side collisions when the acceleration meas-
ured by the sensor is too low
-in front-end collisions
-in rear-end collisions
-in rollovers.
I n some types of accidents the front airbags and
side airbags may be triggered together.
_& WARNING
-Safety belts and the airbag system will only
provide protection when occupants are in
the proper seating position¢
page 214.
-If the airbag indicator light q page 14
comes when the vehicle is being used, have
the system inspected immed iate ly by your
authorized Audi dealer. It is possible that
the a irbag will inflate when it is not sup­
posed to, or will not inflate when it should.
Airbag system
How supplemental side airbags work
Side airbags deploy instantly and can help re­
duce the risk of upper torso injuries for occu­
pants who are properly restrained.
Fig. 168 Inflated side airbag on left side of vehicle
When the system is triggered, the airbag is filled
with propellant gas and breaks through a seam in
the seat surface area marked "AIRBAG". It ex­
pands between the side trim panel and the pas­
senger . In order to help provide this addit ional
protect ion, the side airbag must inflate w ith in a
fraction of a second at very high speed and with
great force. The supplemental sid e a irbag could
injure you if you r seating position is not proper or
u pr ight or if items are located in the area where
the supp lemental side airbag expands . This ap­
plies especially to children
¢ page 216, Child
safety.
Supplementa l side airbags inflate be ­
tween the occupant and the door panel on the
s ide of the vehicle that is struck in certain side
collision ¢
fig. 168.
Although they are not a soft pillow, they can
"cushion" the impact and in this way they can
help to reduce the risk of injury to the upper part
of the body .
A fine dust may develop when the airbag deploys.
This is normal and does not mean there is a fire
in the veh icle.
213

Airbag syste m
Important safety instructions on the side
airbag system
Airbags are only supplemental restraints. Always
p roperly wear safety belts and ride in a proper
seating position.
There is a lot that you and your passengers must
know and act accord ingly to help t he safety be lts
and a irbags do the ir job to provide supplemental
protection.
A WARNING
An inflating side airbag can cause serious or
fatal injury . Improperly wearing safety belts
and improper seating positions increase the
r isk of serious personal injury and death
whenever a vehicle is being used .
- In order to reduce the risk of injury when
the supplemental s ide airbag inflates:
- Always sit in an up right posit ion and never
lean ag ainst the area where the s upple­
mental side airbag is located.
-
- Never let a chi ld or anyone else rest the ir
head agains t the side t rim p anel in the
area whe re the supp lemental s ide a irbag
inflates.
- Always make sure that safety belts are
worn correctly,
- Do not let anyone sitting in the fron t seat
put their hand or any other parts o f the ir
body out of the window .
- Always make sure tha t the side airbag can
inflate without inter ference.
- Never install seat covers or rep lacement
upho lstery over the front seatbacks that
have not been specifically approved by
Aud i.
- Never use add itiona l seat cushions that
cover the areas where the s ide airbags de­
ploy .
- Damage to the origina l seat covers or to
the seam in the area of the side airbag
mod ule m ust always be repaired immed i­
ately by an authorized Audi dealer.
- Objects between you and the airbag can in­
cr ease t he risk of inju ry in an accident by in­
te rfe ring w ith the way the airb ag unfo lds or
214 by being pushed
into you as the airbag in­
flates .
- Never place or attach accessor ies or other
ob jects (s uch as cup ho lde rs, telephone
bracke ts, or even l arge, b ulk y objec ts) on
the doors, over or near the area mar ke d
"A IRBAG" on the seat backrests .
- Such objec ts and accessories can become
dange ro us projecti les and cause injury
when the supplemental side airbag de­ ploys.
- Never carry any objects or pets in the de ­
ployment space between them and the
airbags or allow children or other passen­
gers to trave l in this position .
- Always prevent the side airbags from being
damaged by heavy objects knocking against
or hitting the sides of the seatbacks.
- The a irbag system can only be triggered
once . If the airbag has been triggered, the
system must be replaced by an authorized
Aud i dealership.
- Damage (cracks, deep scratches etc.) to the
or iginal seat covers or to the seam in the
area of the side airbag module must always
be repaired immediately by an authorized
Aud i dea le r.
- If ch ildren are seated imprope rly, thei r risk
of injury increases in the case of an accident
~ page 216, Child safety .
-Never attempt to mod ify any components of
the airbag system in any way.
- In a side collision, side airbags will not func­
tion properly if sensors cannot correctly measure increasing air press ure inside the
doors when a ir e scapes th rough large r, un­
closed openings in the door p anel.
- Never dr ive with interior door t rim panels
removed.
- Never dr ive when parts have been re­
moved from the inside door panel and the
openings they leave have not been proper­
ly closed .
- Never dr ive when loudspeakers in the
doors have been removed unless the
speaker holes have been properly closed .

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Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's re­
sponsibility to maintain correct tire pressure,
even if under-inflation has not reached the level
to trigger illumination of the TPMS low tire pres­
sure telltale .
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the sys­
tem is not operating properly. The TPMS mal­
function indicator is combined with the low tire pressure telltale. When the system detects a
malfunction, the telltale will flash for approxi­
mately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the mal­
function exists.
When the malfunction indicator is illuminated,
the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly . Always check the
TPMS malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure
that the replacement or alternate tires and
wheels allow the TPMS to continue to function
properly.
Description
Applies to: vehicles with tire pressure monitor ing system
The tire pressure monitoring system monitors
the pressure in the four tires when driving.
T he system uses sensors that measure the tem ­
perature and pressure in the tires . The data is
sent from these sensors to the control module by radio frequency.
T he tire pressure monitoring system shows the
current pressures and temperatures of the tires
in the Infotainment system while driving
¢ page 264. It also compares the current tire
pressures with the stored tire pressures and
gives a warning if the tire pressure is different
from what is stored
¢ page 264 .
Wheels
The system does not detect if the stored tire
pressures match the recommended tire pres­
sures. You must store the tire pressures again
¢ page 264:
- every time the tire pressures change, for exam­
ple when the load in the vehicle changes,
- after replacing a tire, or
- if wheels with new wheel sensors are used.
_& WARNING
- The tire pressure monitoring system assists
the driver in monitoring tire pressures. The
driver is responsible for having the tires in­
flated to the correct pressure.
- Do not change the tire pressure when the
temperature of the tire is extremely high.
This could result in serious damage to the
tire and even cause the tire to burst, in­
creasing the risk of an accident.
- A tire with low pressure flexes more. This heats the tire up too much. This could cause
the tread to separate and even cause the
tire to burst, increasing the risk of an acci­
dent.
- The tire pressure monitoring system does not warn about damage or defects in the
tire construction that could cause the tire to
burst, for example. Inspect your tires regu­
larly.
(D Tips
- If tires are replaced, the sensors/valves do
not need to be removed or replaced . Just re­
placed the valve stem and, if necessary, the
valve and the wheel electronics. If you have questions, see an authorized Audi dealer or
authorized Audi Service Facility.
- An incorrect display or a malfunction in the
tire pressure monitoring system can occur
after using the tire mobility kit. Have the
sensors replaced by an authorized Audi
dealer or authori zed Audi Service Facility.
- For an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada regulations, see
¢ page 293.
263

Wheels
Displaying tire pressures/temperatures
Applies to: vehicles with tire pressure monitoring system
Requirement: you must be d rivi ng the veh icle .
"'Se lect in the Infotainment system: IMENU I but­
ton
> Service & checks > Tire pre ssur e monitor­
ing > Di splay tire pressure.
- Green:
the current tire pressure and the speci­
fied t ire pressure are approximately the same .
-Yellow: the current tire pressure is too low
compared to the specified tire pressure .
The specified tire press ure is the last tire pres ­
sure that was stored
c> page 264.
Note that t he tire p ressure also de pends on the
temperature of the tire . The tire press ure in­
creases as the engine becomes wa rmer whi le
driving.
A WARNING
Read and follow the important information
and notes
c> page 263.
(D Tips
The tire pressure or temperature is not d is ­
played while the veh icle is stationary and in
adaptation mode. Dashes --.--are shown in
place of the pressu re and temperature.
(D Tire pressure loss
Applies to: vehicles with tire pressure monitoring system
-
If the Rt] indicato r light turns on, the p ressure in
at least one t ire is too low o r new sensors we re
not adapted :
[I] indicator lights turns on after turning the
ignition on
The tire pressure is too low compared to the
specified p ressure.
"' Check and store the t ire pressure(s) the next
time it is poss ible
c> page 264 .
[I] indicator light turns on while dri ving
Wheels with new sensors were not adapted or
the t ire pressure has reached a critical leve l com­
pared to the specified pressure .
264
"'Avoid unnecessary steering and brak ing maneu -
vers .
"'Adapt your dr iving sty le to the s ituation.
"' Stop as soon as possible and check the tire(s).
"'If it is possib le to continue driv ing, see an au-
thorized Audi dealer or authorized Aud i Service
Facility immediately and have your tire(s) re­
pa ired o r rep laced .
A WARNING
Read and fo llow the impo rtant info rmation
and n otes
c>page 263.
Storing new tire pressures
Applies to: vehicles with tire pressure monitoring system
Correctly stored tire pressure specifications are
necessary for reliable tire pressure monitoring.
-
It is always necessary to store the t ire pressures
whe n the t ire pressu res a re modified, fo r exam­
ple d ue to a change in load . o r when new senso rs
a re installed.
"' Before storing the t ire pressures, make su re the
tire pressures of all four t ires meet the spec i­
fied va lues and are adapted to t he load
c::> page 254, fig. 190 . Only correct and store
the pressure in tires whose temperature is ap ­
proximate ly the same as the ambient tempera ­
t u re . If the temperature of the tire is higher
than the ambient air temperature, the tire pressure must be increased approximately
3.0 PSI (0.2 bar) above the value on the st icker.
"' Switch the ignit ion on .
"'Select in the Infotainment system : IMENU! but­
ton
> Service & checks > Tire pressure monitor­
ing > Store tire pre ssure > Ye s, store now .
Af­
ter storing the t ire pressures, the t ire press ure
mon itor ing system measures the c urrent pres ­
sures while driving and stores them as the new
specified pressures .
"'If the changed tire pressures are not displayed
in the Infotainment system, drive the vehicle
for approximately 10 minutes so that the sen­ sor signa l from the wheels is received again .
During this adaptation phase, -- .- - is d isplayed
for the pressure and temperature and the tire pressure monitoring system is on ly partially

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availab le . It only provides a warning if one o r
more tire pressures is be low the minimum per ­
mitted specif ied pressure .
If the
[I] indica to r lig ht turns on and the mes­
sage
Tire pressure: wheel change detected .
Please check all tires and store pressures in
MMI also appears, the system has detected that
the posit ion of the sensors has changed because
of a tire rotation, or that new sensors were in­
stalled . Store the new tire pressures.
A WARNING -
Read and follow the important informa tion
and notes<=;>
page 263.
Malfunctions
App lies to: ve hicles with tire press ure m onitoring system
If t he tire pressure monitoring system is not
available, the
m;i ind icat or light appears in the
in str ument cluster display along with th e mes­
sage
Tire pressure: malfunction! See owner's
manual.
I f the @m in dica tor light appears after switch­
ing the ignition on or while dr iv in g and the
[I] in­
d icator light also blinks for approximate ly one
minute and t hen stays on, there is system ma l­
function. The following are examples of sit ua­
tions that cou ld cause a malfunction:
-If the message appears at the end o f the adap ­
tation phase, the system may not detect one or
severa l of the wheel senso rs necessa ry for pres ­
s ur e monitoring. This may result from one or
more wheels being installed without wheel sen­
sors or with incompatible wheel sensors .
- A wheel sensor o r another component has
failed.
- Using snow cha ins can affect the f unction of
the system because of the shie lding effect of
the cha ins.
- The tire pressure monitor ing system is not
available due to a malfunction.
- Transmitters with the same frequency, such as
headphones or remote-controlled dev ices, may
cause a temporary system malfunction due to
the strong electromagnetic field .
Wheels
The m;i indicator lig ht and the message turn off
once the tire pressure monitoring system is avail ­
able again. If you cannot co rrect the malfunction
and
the m indicator light stays on, drive imme­
diately to an authorized Audi dea ler or author­
ized Audi Se rvice Facility to have the malfunct ion
repaired.
265

Care and cleaning
Care and cleaning
General information
Regular, proper care helps to maintain your vehi­
cle's value. It can also be a requirement when
submitting warranty claims for corrosion damage
and paint defects on the body.
The necessary care products can be obtained
from an authorized Audi dea ler or authorized
Audi Service Facility. Read and follow the instruc ­
tions for use on the packaging.
A WARNING
-Using cleaning and care products incorrectly
can be dangerous to your health.
- Always store clean ing and care products out
of reach of children to reduce the r isk of poi­
sonin g.
@ For the sake of the environment
- Preferab ly purchase environmenta lly-friend­
l y cleaning products.
- Do not dispose of leftover cleaning and care
products with household trash.
Car washes
The longer that deposits remain on the vehicle,
the more the surface may be damaged. High
temperatures such as those caused by sunlight increase the damaging effect .
Before washing, rinse
off heavy deposits with
p lenty of water.
Stubborn deposits such as bird droppings or tree
sap are best removed with plenty of water and a
microfiber cloth.
A lso, wash the underside of yo ur vehicle once
road sa lt stops being used for the season.
Pressure washers
When washing your veh icle w ith a pressure wash­
er, always follow the operating instructions pro­
vided with the press ure washer. This is espec ially
impor tant in r egard to the pressure and spraying
distance. Do not direct th e stream of water di­
rect ly onto seals for the side windows, doors,
266
lug gage compartment lid or hood, or onto the
tires, rubber hoses, insulating material, sensors*
or camera lenses* . Keep a distance of at least 16
i n
(40 cm).
Do not remove snow and ice with a pressure
washer.
Never use cone nozz les or high pressure nozzles.
The water temperature must not be above
140 °F
(60 °() .
Automatic car washes
Spray off the vehicle before washing.
Make sure that the windows are closed and the
winds hield wipers are
off. Follow instructions
from the car wash operator, espec ia lly if there
are accessories attached to your veh icle.
If possible, use car washes that do not have
brushes.
Washing by hand
Clean the vehicl e starting from the top and work­
in g down using a soft sponge or cl eaning br ush.
Use solvent-free cleaning products.
Washing vehicles with matte finish paint by
hand
To avoid damaging the paint when washing, first
remove dust and large part icles from you r vehi ­
cle. Insects, grease spots and fingerprints are
best removed with a special cleaner for matte
finish paint.
Apply t he product using a microfiber cloth. To
avoid damaging th e paint surface, do not use too
much pressure.
R inse the vehicl e thoroughly with wate r. Then
clean using a neutra l shampoo and a soft micro­
f iber cloth .
Rinse the vehicl e thoroughly again and let it air
dry. Remove any water residue using a chamois.
A WARNING
-Only wash the vehicle when the ignition is
off and follow the instructions from the car
-

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wash operator to reduce the risk of acci­
dents.
- To reduce the risk of cuts, protect yourself
from sharp metal components when wash­ ing the underbody or the inside of the wheel
hous ings.
- After wash ing the vehicle, the brak ing effect
may be delayed due to mo isture on the
brake rotors or ice in the w inter . This in­
c reases the risk of an acc ident. The brakes
must be d ried fi rst w it h a few careful b rake
applications.
@ Note
- If you wash the vehicle in an automatic car
wash, you m ust retract the extendable rear
spo ile r* if necessary, and fold the exter ior
mir rors in to red uce the r isk of damage.
Power folding exte rior m irrors* must o nly
be fo lde d in a nd out u sing the power folding
f unct ion .
- To reduce the risk of p ain t d amage, do no t
wash the vehi cle i n di rect sunlig ht.
Care and cleaning
- T o red uce the risk of damage, do not was h
the power top with a pressure washer.
- T o red uce the risk of damage to the s urface,
do not use insect removing sponges, kitchen
sponges or similar items .
- Mat te finish painted veh icle components:
- To reduce the risk of damage to t he sur-
face, do not use po lish ing agents or hard
wax.
- Never use protective wax. It can destroy
the matte finish effect .
- Do not place any stickers or magnetic
signs on vehicle parts painted with matte
finish paint. The paint cou ld be damaged
when the stickers or magnets are re­
moved.
@ For the sake of the environment
Only wash the vehicle in facilities spec ially de­
s igned for that pu rpose . This will reduce the
r isk of di rty wate r contam inated with o il from
ente ring the sewe r sys tem.
Cleaning and care information
When cleani ng and ca ring for individua l vehicle
components, refer to the following tables . The
information contained there is simp ly recom ­
mendations. For questions or for components t
h at are not l isted, cons ult an autho rized Aud i
dealer or authorized A udi Se rvice Fac ility . Also
fo llow the information fo und
in ¢& .
Ext erior cleaning
Component Situation Solution
Windshield wiper
Deposits soft cloth with glass cleaner, ¢ page 43
blades
Headli ghts/
Deposits Soft sponge with a m
ild soap so lutiona )
Tail light s
Se nsors /
Deposits Sensors: soft cloth with solvent-free cleaning solut ion
Cam era len ses Camera lenses: soft cloth w ith alcohol -free cleaning solu -
tion
Snow/ice Hand brush/solvent-free de-icing spray
Wheels Road salt Water
Brake dust Acid-free special clean ing solution
Exhaust tai l pipes Road salt Water, clea ning solution su itab le for stainless stee l, if nee-
essa ry
267

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Interior fuse assignment
Fig. 207 Vehicle interior: fuse assignmen t
No. Equipment
Fl Power top cont
rol module (Roadster)
F2 Power top control module (Roadster)
F4 Central computer processor (MIB
-2)
FS Gateway
F6 Selector lever (automatic transmission)
Climate control system controls, rear w in-
F7 dow defogger relay coil, tire pressure
mon itoring
Switch for the electromechanical parking
F8 brake, light switch, rain/light sensor, inte-
rior lighting, anti -theft alarm system, di -
agnostic connector
F9 Steering column switch module
FlO Display
Fll All whee
l drive clutch
F12 Infotainment components
F13 Control module for suspension control
F14 Climate control system blowe r
FlS Electronic steering column
lock
F16 I
nfotainment system components, safety
be lt microphone (Roadster)
No.
Fl7
F1 8
Fl9
F20
F 22
F24
F 25
F 26
F 27
F28
F2 9
F 31
F3 2
F33
F 34
F 35
F36
F37
F3 8
F39
F40
F41
F 42
F43
F44
F45
F46
F49
F S3
Fuses and bulbs
Equipment
Instrument cluster
Rearview camera
Convenience access control module
Power lumbar support adjustment
Front passenger's side neck heating (Road-
ster)
R ight vehicle electrica l system control
module
Driver's s ide door (for example power w in-
dows)
Seat heating
Vehicle electrical system control module
AMI High media port
Vehicle e lectr ical system control module
Left vehicle electrical system contro l mod-
ule
Driver assistance systems
Airbag
Socket relay, inte rior sound , back-up light
switch, temperature sensor, oil leve l sen -
sor
Diagnosis, headlight range control system,
a ir quality sensor, automatic dimming
rearview mirror
R ight cornering light/ right LED-headlight
L eft cornering light/ left LED-headlight
Engine control module, ESC control mod-
ule
Front passenger's side door (for example
power windows)
C igarette lighter, sockets
SCR relay and delivery unit
Central locking area
On-board computer
A ll wheel d rive clutch control module
Power adjustable driver's side seat
Driver's side neck heating (Roadster)
Starter, clutch sensor
Rear window defogger
281