2011 AUDI TT ROADSTER sensor

automatic dimming of the o uts ide m ir­
r or s will likewise be di sabled .
-Check to make sure there are no objects
preventing light from reaching the inside
mirror.
- Do not attach any sticke rs to the wind ­
shield in front of the two light sensors,
as this would interfere with both the au­
tomatic operation of the headlights and
the automatic dimming of the inside mir ror(s).
Outside mirrors
The outside mirrors ore electrically adjusted.
Fig. 67 Forward section of drive r's armrest: power mir ­
ror contro ls
Adju sting th e outside mirror s
• Turn the adjusting knob to posit ion ©
Q fig. 67 to adjust the o utside mirror on the
driver's side .
• Turn the adjusting knob to position ® to ad­
just the outside mirror on the passenger
side.
• Press the knob in the appropriate direction
to move the mirror surface so that you have
a good view to the rear.
Heated mirro rs
• Turn the knob to posit ion @.
Depending on the outside temperature, the
mirror surfaces are heated until the ignition is
switched off -even if the knob is no longer in
position @. You are well-advised to fold the
outs ide mirrors in when maneuvering in tight
spaces or when leaving the car parked close to
other veh icles.
Clear vi sion 59
(D Note
- Curved ( i.e. convex) mirror s urfaces in­
crease yo ur field of view. Remember that
vehicles or other objects will appear
smaller and farther away than when
seen in a flat m irror . If you use this mir­
ror to estimate distances of following ve­
hicles when chang ing lanes, you could
es timate incorrectly and cause an ac ci­
dent.
- If the mirror housing is moved uninten­
tionally (for examp le, w hile pa rking your
vehicle), then yo u must first fold the m ir­
ror elect rically . Do not rea djust the mir ­
ror housing man ually . You cou ld damage
the motor which controls the mirror .
(D Tips
If there sho uld be a ma lf u nction in the
e lectrica l system, yo u can sti ll adjust the
outside m irrors by pressing the edge of
the m irror.
Automatic dimming for outside mirrors
Applies to vehicles: wit h automatic dimm ing for outside
mirro rs
The outs ide mirrors are dimmed together with
the automatic dimming of the inside mirror .
When the ignition is sw itched on, the mirrors
darken automatically depending on the light
striking them (e .g. headlights from the rear) .
When the interior lighting is switched on and
when reverse gear is engaged, the mirrors are
switched back to the ir original br ightness (not
dimmed) .
A WARNING
Broken glass of automat ic dimming mirror
can cause electrolyte flu id leakage. El ec­
trolyte f lu id can ir rit a te skin, eyes, a nd res­
p ira to ry system.
- Repeated or prolonged exposu re to e lec­
trolyte can cause irritation to the respira­
tory sys tem, espe cially among people
wit h asthma or other resp irato ry co ndi -
tions . Get fresh air immediately by
~

come back a while later and drive off, the rain
sensor will reactivate itself after the vehicle
speed has exceeded 4 mph (6 km/h).
The rain sensor* is only activated with the
wiper lever set to position(!). When it starts
to rain, the rain sensor will automatically acti­
vate the intermittent wiping mode.
To reduce the sensitivity of the sensor, move
switch @ down. To increase the sensitivity,
move the switch up. The higher you adjust the
sensitivity, the faster the sensor will react
when it senses moisture on the windshield. The pauses between wiper turns depend not
only on the sensitivity setting, but on the ve­
hicle speed as well.
During brief stops, e.g . at a red light, wiper
motion will automatically be reduced to the
next lower speed . Wipers already turning at
low speed. change to intermittent wiping.
When the ignition is turned on, the washer
jets are heated .
A WARNING
-Wiper blades are crucial for safe driving!
Only when they are in good condition are
they able to clear the windows properly
to provide uncompromising visibility.
Worn or damaged wiper blades are a
safety hazard ¢
page 63, Replacing
windshield wiper blades!
- The light/rain sensor* is only designed to
assist and support the driver.
It remains
entirely the driver's responsibility to
monitor outside weather conditions and
to manually activate the wipers as soon
as rain or drizzle reduces visibility
through the windshield.
- The windshield must not be treated with
water-repellent materials. They can in­
crease glare under poor visibility condi­
tions such as wetness, darkness, or when
the sun is low on the horizon. In addi­
tion, they can cause the windshield wip­
ers to chatter.
Clear vision 61
@ Note
In freezing or near freezing conditions:
- Always check that the wiper blades are
not frozen to the glass before you turn
the wipers on. Loosen a wiper blade
which is frozen in place before operating
the wipers to prevent damage to the
wiper blade or the wiper motor.
- Do not use the wipers to clear a frosted
window. Using the wipers as a conven­ ient ice scraper will destroy the wiper
blades .
- Before you take your vehicle to an auto­
matic car wash, make sure you have the
windshield wiper system switched off (lever in position
0), otherwise the wind­
shield wiper system could get damaged
in the car wash if it should suddenly
come on.
@ Tips
-The windshield wipers are switched off
when the ignition is turned off. Activate
the windshield wipers after the ignition
is switched back on by moving the wind­
shield wiper lever to any position.
- Worn or dirty windshield wiper blades
cause smearing, which can affect the op­
eration of the light/rain sensor*. Check
the condition of your windshield wiper
blades regularly.
-The rain sensor is part of the interval
wiping system. Turning off the ignition
will also deactivate the rain sensor. To re­
activate the sensor, switch off the inter­
val wiping function, then switch it back
on again.
-Applies to vehicles with light/rain sen­
sor: When the wipers are switched on
manually and in rain conditions, the au­
tomatic headlights* turn on¢
page 53,
Switching the headlights on and off
or
off during the day when the wipers are
no longer operating. The automatic
headlights* function is available in this
case only when the light switch is in the
"AUTO" position¢
page 53, fig. 57.

(D Note
Only after the vehi cle has come to com­
plete stop, should you f irm ly set the park­
ing brake and either move the selector lev­
er into "P".
Parking
To prevent a parked vehicle from rolling
away, there are a few things you should do.
When you park your vehicle, do the following:
.,. Stop the vehicle using the brake pedal.
... Set the parking b ra ke firmly .
... Switch
off the engine.
... Move the selector lever into the P position
¢ A .
... Remove the ign it ion key from the ignit ion
lock.
What else you should do when pa rking
your vehicle on an incline or decline
Turn the steering wheel so that if the vehicle
should start to roll, it will roll into the curb.
If you are parking on a decl ine (the front of
your vehicle facing downhill), turn the front
wheels to the right so that they point
toward
the curb.
If you are parking on an incline (the font of
your vehicle facing uph ill), turn the front
wheels to the left so that they po int
away
from the curb.
A WARNING
Th is is how you can reduce the risk of in­
jury when leaving your veh icle.
- Never park the vehicle where it can come
in contact with d ry grass, sp illed fuel or
any othe r flammable mater ials .
- Never allow anyone -especially small
children -to remain in the vehicle whe n
it is locked . Locked doors ma ke it more
difficult for rescuers to access the pas­
senge r compartmen t in the event of an
eme rgency. Danger to life!
- Never leave c hildren unsupervised in the
vehicle. Children co uld re lease the par k-
-
On th e ro ad 83
ing brake or move the gearsh ift leve r out
of gear. The vehicle could start to ro ll
away and cause an acc ident.
- No matter what the season is, the tem­
perature in a parked ve hicle can reach
dangerous leve ls.
Acoustic parking
system
' Rear acoustic park assist
Applies to vehicles: with 4-channel acoust ic park assist
Acoustic park assist gives a warning about
obstacles behind the vehicle .
Description
The rea r acoustic pa rk ass ist (4-channel
a coustic park ass ist) de termines the dista nce
of the vehicle from an obstacle using ult ra ­
son ic sensors. The sensors are in the rear
bumper. The volume and the pitch of the
c hi mes can be adjusted throug h the men u dis­
play¢
page 21.
T he range at wh ich the sensors start to meas ­
u re is
about :
To the side
Activation
2 feet (0.60 m)
5 feet (1.60 m)
T he park ing ass ist is activated when
rever se
g ear
is engaged. A br ief tone confirms th at
the sys tem is activated .
Backing up
Distance warning whe n backing up sta rts
whe n an obstacle is detected in the range of
t he pa rk ass ist system. As the distance de­
c reases, the t ime inte rva l between the audible
tones becomes shorte r.
When the distance is less than 1 foot (0.30
m), the tone becomes continuous. At this
po in t you sho uld s top bac king up .
Please note that low objects already signalled
by a war ning ca n disappear from the system's
de te ction range and will not continue to be
s ignalled . .,._

84 On the road
Potenti al malfunction s
If a warn ing buzzer sounds for a few seconds
when the ignition is switched on, there is a
system malf unction with the acoustic park as­
sist. If the malfunction persists until the igni­
tion is switched off, there will be no acoustic
warning at the next attempt to activate the
system. Have the problem corrected.
There is no confirmation tone when reverse
gear is engaged if there is a system malfunc­
tion.
For the parking assist to operate, the sensors
must be kept clean and free of ice .
A WARNING
-Sensors have blind spots in which objects
cannot be detected. Pay special attention
to sma ll children and animals. They can­
not always be detected by the sensors -
danger of an accident!
- The parking assist cannot replace the dr iver's attention. The d river alone is re­
sponsible for parking and s imilar driving
maneuvers. A lways watc h where you a re
dr iv ing.
(D Note
Low obstacles al ready signalled by a warn­
ing can disappear from the system's det ec­
t ion range as they are approached and will
no t continue to be sign alled. Objects such
as barrier cha ins, trailer draw ba rs, thin
pa inted vertical poles, or fences may not
be detected by the system -risk of dam­
age .
For the parking ass ist to operate, the sen­
sors must be kept clea n and free of snow
and ice.
Cruise control
Switching the system on
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph
(30kmlh).
®-
Fig . 9 2 Contro l lever wit h set button
93.3
. ®' ~.+31, ~F; ,
II .~~ .. . • , -,.::.._-.--~.I-~-
CRUISE 45 MPH
iR 340m i
Fig. 9 3 Display: Selected speed
.,. Pull the lever to position (D c::> fig. 92 to
sw itch the system on.
.,. Drive at the speed you wish to set.
.,. Press button @ to set that speed.
T he disp lay
c::> fig . 93 will show the se t speed.
T he disp lay may vary depend ing on the type of
display in your ve hicle. The indicator light
te;(Q~i~ (US model) /. (Canadian model) will
also light up in the instrument cluster.
A WARNING
--Always pay attention to traffic even whe n
the cruise contro l is switched on. You are
always respons ib le for your speed and
the distance between your veh icle and
other ve hicles.
- For safety reasons, the cru ise cont ro l
should not be used in the city, in stop­
an d-go t raffic, on twis ting road s and
when road cond itio ns are poor (such as

The front airbag on the passenger side may
not dep loy (the PA SSENGER AIR BAG OFF
light does not illuminate and stay lit) if:
- a small adu lt or teenager is on the fron t pas ­
senger seat
- a passenger who is not sitt ing upright w ith
their back against a non-reclined backrest
with their feet on the vehicle floor in front
of the seat is on the front passenger seat .
I f the front passenger airbag deploys, the
F ederal Standard requires the a irbag to meet
the " low risk" deployment criteria to help re­
duce the risk of injury through interaction
with the airbag. "Low risk" deployment occurs in those crashes that take place at lower de­
celerations as defined in the electronic co ntrol
un it
o page 125 .
Alway s rem ember : Please be sure to read the
important information in the sections that
follow and be sure to heed all of the WARN­
INGS.
8, WARNING
To reduce the risk of injury when an airbag
inflates, a lways wear safety belts prope rly.
- If you are unrestrained, lean ing forward,
sitting sideways or out of position in any
way, your risk of injury is much higher.
- You w ill also receive serio us injuries and
cou ld even be killed if you are up against
the a irbag or too close to it when it in­
fla tes - even with an Advanced Airbag
opage 115 .
A WARNING ,~
A child in a rearward -facing child sa fety
seat insta lled on the front passenger seat
wi ll be seriously injured and can be ki lled if
the front a irbag inflates - even with an Ad­
vanced Airbag System.
- Although the Advanced Airbag System in
yo ur vehicle is designed to turn
off the
front a irbag when a rearward-fac ing
child restraint has been installed on the
front passenger seat, nobody can abso­ lute ly guarantee that deployment is im-
A irbag system 12 1
possible in all conceivable situations that
may happen dur ing the usefu l life of your
veh icle.
- The inflating airbag will h it the ch ild
safety seat or infant carrier with great
force and will smash the child safety seat and child against the backrest, door, or roof.
- If you must install a rearward fac ing
child safety seat on the front passenger
seat because of exceptional c ircumstan­
ces and t he
PASSENGER AIR BAG OFF
light does not come on and s tay on, im­
media tely ins ta ll the rear-fac ing ch ild
safety seat in a rear seating position and
have the airbag system inspected by your
Aud i dea le r.
A WARNING
If, in except iona l circumstances, you must
install a forward-facing child restraint on
the front passenger's seat:
- Always make sure the forward-facing seat has been designed and certified
by
its manufacturer fo r use on a front seat
wit h a passenger front and s ide a irbag.
- Never put the forward-facing child re­
straint up against or very near the instru­
ment panel.
- Always move the passenger seat into its
rearmost pos ition in the seat's fore and
aft ad justment range, as fa r away from
the airbag as possible, before install ing
the forwa rd-fa cing ch ild restra int. The
bac krest mus t be adju sted to a n up right
posi tion.
- Ma ke su re that the
PASSENGER AIR BAG
OFF
li ght comes on and stays on all the
time whenever the ignition is switched on.
Advanced Airbag System components
T he front passenger seat in yo ur vehicle has a
lot of very important parts of the Advanced
Airbag System in it. These parts include the
weight-sensing mat, sensors, w iri ng, brack-
ets, and more . The funct ion of the system in ..,.
•
•

122 Airbag sys te m
the front passenger seat is checked by t he
e lectronic control unit when the i gnition is on .
The control unit mon itors the Advanced Air ­
bag System and turns the airbag indicator
light on when a malfunction in the system
components is detected. The function of the
a irbag ind icator light is described in greater
deta il be low. Because the front passenger
seat conta ins impo rtant parts of t he Ad­
v a nce d Airb ag System, you m ust ta ke ca re to
prevent it from be ing damaged. Damage to
the seat may prevent the Advanced Airbag for
the front passenger seat from doing its job in
a crash.
The f ront Advanced Airbag System
consi sts o f th e following :
-Crash sensors in the front of the veh icle that
measure veh icle acceleration/dece leration
to provide information to the Advanced Air­
bag System about the severity of the crash.
- An electronic contro l unit, with integrated
crash sensors for front and side impacts.
The contro l unit "decides" whether to fire
the front airbags based on the information received from the crash sensors. The contro l
unit a lso "dec ides" w hethe r th e safety be lt
pretensioners should be a ctivated.
- An Advanced Airbag with gas generator for
th e d river ins ide the steer ing whee l hub.
- An Advanced Airbag with gas generator in­
s ide the instrument pane l for the front pas­
senger.
- A weig ht-sens ing mat under the upholste ry
padd ing of the front passenger seat cush io n
t h at meas ure s the tot al we igh t on the seat.
T he information registered is sen t con tinu­
o usly to the electron ic cont ro l u nit to regu­
l ate dep loyment of the front A dvanced Air­
bag on the passenger side.
- An airbag monito ring system and indicator
li ght in the instrument cluster
¢ page 125.
- The PASSENGER AIR BAG OFF light comes
on and stays on in the center of the instru­
ment pane l¢
page 126, fig. 122 and tells
yo u when the front Advanced A irbag on the
passenger s ide has been turned off. -
A sensor below the safety be lt latch for the
front seat passenger to measure the tension on the safety belt . The tension on the safety
be lt and the weight registered by the
weight-sensing mat he lp the control unit
"decide" whether the front airbag for the
front passenge r seat should be turned off or
not
¢ page 116, Child restraints on the
front seat -some important things to
know.
- A senso r in the safety belt latch fo r th e d riv­
er and fo r the fro nt sea t passenger tha t
senses whet her t hat safety bel t is latche d or
not and transmi ts this information to t he
electronic control unit.
A WARNING
Damage to the front passenger seat can
p revent the front airbag from work ing
properly.
- Improper repair or d isassembly of the
front passenge r and dr iver seat will pre­
vent the Advanced Airbag System from
fu nctioning properly.
- Repairs to the front passenge r seat must
be pe rformed by qualified and p roperly
trained workshop personnel.
- Never rem ove t he front passenger or
driver seat from t he vehicle.
- Never
remove th e upho lstery from the
front passenge r seat.
- Never d isassemble or remove parts from
the seat or disconnect wires from it.
- Never carry sharp objects in yo ur poc kets
or place them on the seat. If the weight­
sensing mat in the passenge r seat is
punctured it cannot work properly .
- Never carry things on you r lap or carry
objects on the passenger seat. Such items can increase the weight registered
by the weight-sensing mat and send the
wrong in formation to the airbag co ntrol
un it.
- Never store items under the front pas­
senger sea t. Parts of the Advan ced Air­
b ag Sys tem unde r the p assenger se at
-
could be damaged, p reven ting t hem and ~

the airbag system from working proper­ly.
- Never place seat covers or replacement
upholstery that have not been specifical­
ly approved by Audi on the front seats.
- Seat covers can prevent the Advanced
Airbag System from recognizing child re­
straints or occupants on the front pas­
senger seat and prevent the side airbag
in the seat backrest from deploying prop ­
erly .
- Never use cushions, pillows, blankets or similar items on the front passenger
seat. The additional padding will prevent
the weight-sensing mat in the seat from
accurately registering the child restraint
or person on the seat and prevent the
Advanced Airbag System from function ­
ing properly.
- If you must use a child restraint on the
front passenger seat and the child re­
straint manufacturer's instructions re­
quire the use of a towel, foam cushion or
something else to properly position the
child restraint, make certain that the
PASSENGER AIR BAG OFF light comes
on and stays on whenever the child re­
straint is installed on the front passen­
ger seat .
- If the
PASSENGER AIR BAG OFF light
does not come on and stay on, have the
airbag system inspected by your Audi
dealer.
How the Advanced Airbag System
components work together
The front Advanced Airbag System and the
side airbags supplement the protection of­
fered by the front three-point safety belts
with pretensioners and load limiters and the adjustable head restraints to help reduce the
risk of injury in a wide range of accident and
crash situations . Be sure to read the impor­
tant information about safety and heed the
WARNINGS in this chapter.
Deployment of the Advanced Airbag System
and the activation of the safety belt preten-
Airbag system 123
sioners depend on the deceleration measured
by the crash sensors and registered by the
electronic control unit. Crash severity depends
on speed and deceleration as well as the mass
and stiffness of the vehicle or object involved
in the crash .
When the electronic control unit registers a
low severity crash and the safety belt is being
used, the airbag will not deploy. I f the safety
belt is not being used, the first stage deploys,
followed by the second stage after a much lat­
er time in the crash sequence.
If the electronic control unit registers a crash
of medium severity , the first stage of the air ­
bag deploys followed by the second stage at a
much later time in the crash sequence -re­
gardless of whether the safety belt is being
used or not . In higher severity crashes as reg­
istered by the electronic control unit, both the
first and second stages deploy almost at the
same time.
On the passenger side, regardless of safety
belt use, the airbag will be turned off if the
weight on the passenger seat is less than the
amount programmed in the electronic control
unit. The front airbag on the passenger side
will also be turned off if one of the child safe­
ty seats that has been certified under Federal
Motor Vehicle Safety Standard 208 has been
recognized on the seat. The
PASSENGER AIR
BAG OFF
light comes on and stays on to tell
you when the front Advanced Airbag on the passenger side has been turned off
¢ page 116, Child r estraints on the front s eat
- some important things to know.
_&, WARNING
To reduce the risk of injury when an airbag
inflates, always wear safety belts properly .
- If you are unrestrained , leaning forward,
sitting sideways or out of position in any
way, your risk of injury is much higher.
- You will also receive serious injuries and
could even be killed if you are up against
the airbag or too close to it when it in­
flates -even with an Advanced Airbag
¢ page 115.
•
•

-The inflating airbag will hit the child
safety seat or infant carrier with great
force and w ill smash the ch ild safety seat
and child against the backrest, center
arm rest, door or roof.
- If you must install a rearward facing
child safety seat on the front passenger
seat because of exceptional circumstan­ ces and the
PASSENGER AIR BAG OFF
light does no t come on and stay on, im­
med iately install the rear-facing child
safety seat in a rear seating position and
have the airbag system inspected by your
Audi dealer .
&_ WARNING
Objects between you and the airbag will
increase the risk of in jury in a crash by in­
terfering with the way the airbag unfolds or by being pushed into you as the a irbag
inflates.
- Never hold th ings in your hands or on
your lap when the vehicle is in use .
- Never transport items on or in the area
of the front passenger seat. Objects
could move into the area of the front air­
bags dur ing braking or other sudden ma­
neuver and become dange rous projec­
t il es that can cause serious personal in­
jury if the airbags inflate.
- Never place o r attach accessories or oth­
er objects (such as cup ho lders, tele­
phone brackets, large, heavy or b ulky ob­
jects) on the doors, over or near the area
marked "AIRBAG" on the steering wheel,
instrument panel, seat backrests or be­
tween those areas and yourself. These
objects could cause injury in a crash, es­
pecially when the airbags inflate.
- Never recline the front passenger's seat
to transport objects. Items can also move into the area of the side airbag or
the front airbag dur ing braking or in a
sudden maneuver. Objects near the air­
bags can be come project iles and cause
injury, part icularly when the seat is re­
cl ined.
-
A irbag sys tem 125
&_ WARNING
The fine dust created when airbags deploy
can cause breathing prob lems fo r people
with a history of as thma or other breath­
ing cond itions.
- To reduce the risk of breath ing problems,
those with asthma o r other respiratory
conditions s hou ld get fresh air r ight
away by getting o ut of the veh icle or
open ing windows or doors.
- If you are in a collision in which airbags
deploy, wash your hands and fa ce with
mild soap and wate r before eating.
- Be ca reful not to get the dust in to your
eyes, o r into any c uts or sc ratches.
- If the residue should get into your eyes,
f lush them w ith wate r.
Monitoring the
Advanced Airbag System
fl~ Airbag monitoring indicator light
Two separate indicators monitor the function
of the Advanced Airbag System: the airbag
monitoring indicator light and the
PASSEN­
GER AIR BAG O FF
light.
T he Advanced A irbag System (includ ing the
electron ic co ntro l unit, sensor circu its and sys­
tem wiring) is monitored continuously to
make sure that it is function ing properly
whenever the ignition is on. Each time you
turn on the ignition, the airbag mon itoring in­
dicator light
I will come on for a few seconds
(self diagnostics).
Th e syste m mu st b e in spected when the
indicator light
I :
- does not come on when the ignition is
sw itched on,
- does not go out a few seconds after you
have switched on the ignit ion, or
- comes on while driving.
If an airbag system malfunction is detected,
the indicator light wi ll first start flashing to
catch the driver's attention and then stay on
llo-
•
•