AUDI TT ROADSTER 2015 Workshop Manual

light sensor checked as soon as possible at a
dealership.
Adaptive light *
The benefit of adaptive l ight is that the curve
and the edge of the road are better i llum inat­
ed . The adaptive light is contro lled automati­
cally, depending on vehicle speed and steering
wheel angle.
When driving a round bends, the head lights
are contro lled according to steering wheel an­
g le . So that there is no black area ahead of the
ve hic le, the two main beams pivot at different
angles. The system works above a speed of
about 6 mph (10 km/h).
Com ing home /le avi ng home function *
The function is swit ched on when the switch is
in the AUTO* position and the function is
shown as active in the driver information sys­
tem.
The
coming hom e function illuminates the
area around the vehicle when the ign ition is
switched off and the driver's door is ope ned.
The length of time the lights remain on can be
set in the menu display
( Illumination > Exte­
rior lights > coming home ).
The leavi ng home function i lluminates the
area around the vehicle when unlocking it.
A WARNING
- Never use dayt ime running l ights to see
where you are going. They are not bright
enough and w ill not let you see far
enough ahead for safety, especially at
dusk or when it is dar k. Always switch on
the low beams at dusk or when i t is dar k.
- Automatic headlights a re only intended
to assist the dr iver. They do not re lieve
t he driver of his responsibi lity to check
t he headlights and to turn them on man­
ually according to the current light and
visibility conditions. For example, fog
and rain cannot be detected by the light
sensors. So a lways switch on the head­
lights under these weather cond itions
and when driving in the dark
jO .
Clear vis ion 49
- Crashes can happen when you cannot see
the road ahead and when you cannot be
seen by other motorists.
- Always turn on the headlights so that
youcanseeahe adandsothatothe ~
can see your car from the back .
- Please observe legal regulat ions w hen
using the ligh ting systems des cribed.
(D Tips
- T he light sensor for head light control is
located in the rear view mirror mount.
Do not apply any stickers to t he wind­
shield in th is area to preven t malfunc­
tions or fa ilures.
- Some exter io r l ighting funct ions can be
adjusted in t he driver i nformat ion sys­
t em
~page 24.
- I f you remove the igni tion from t he igni ­
t ion lock while the headligh ts are s till
on, a buzzer wi ll sound as long as the
driver's door is o pen to remind yo u to
t u rn off the lights.
- Always observe the specific local regula ­
tions for your area as to when to use your
lights.
- With automatic headlights, the high­
beam f unction is also available, but w ith
one restrict ion: If you have not sw itched
the high beams back to low beams dur­
ing automatic headlight operation (for
example, after d riving throug h a tunnel),
only the low beams come on the next
t ime au tomati c headlights a re swi tched
on. To use the high beams , you firs t have
t o pull the hig h beam lever back and
then push the lever fo rward again .
- In coo l or damp weather, the inside of
the headlights, turn signals an d tail
lights can fog over due to the tempera­
t u re difference between the inside and
outside. They w ill clear shortly after
switching them on. This does not affect
the se rv ice life of the lighting.

50 Clear vis ion
Front fog lights
F ig. 5 4 Fog light act ivation: light switch pos itio n on
veh icles WITHOUT sensor light
Switching on the front fog lights iO
.,. Do not turn the light switch ·'t/-· ¢ fig. 54 to-
ward the fog light symbol
}D.
.,. Turn the light switch to :o o: or to io .
.,. Pull the ligh t switch to the first stop @.
When the front fog lights are on, the symbol
}D next to the light switch will i llum ina te.
@ Tips
With the switch in AUTO front fog lights
cannot be turned on in addit ion.
Turn signals and high beam lever
The lever on the left side of the steering col­
umn is used to operate the turn signals and
the high beam as well as the headlight flash­
er .
Fig . 55 Tu rn signa l and high beam lever
The turn signal and high beam lever has the
following functions:
Turn signals ¢ Q ©@
.,. Push the lever up as fa r as it ca n go to t urn
on the right turn s ignal or down to tu rn on
the left turn signal ¢
fig. 55 .
.,. Move the lever briefly unti l you meet res ist­
ance and release it to flash three times .
.,. Move the lever (up or down) until you meet
resistance and hold it there to determine
the flashing time for the turn signals .
High be am gD @
.,. Push the lever forward to switch on the high
beam.
.,. Pull the lever back towards you to switch off
the high beam.
Headlight fla sh er gD @
.,. Pull the lever toward the steering whee l to
use the headlight flasher.
Not es on thes e features
- The turn signals on ly work wi th the ignition
sw itched on. The indicator lights
B or iPJ
in the instrument cluster~ page 12 a lso
blink.
- After you have tu rned a corner, the turn sig­
na l switches off automatically .
- The
high beam wo rks on ly when the head­
lights are on . The indicator light
Iii in the
instrument cluster illuminates when the
high beams are on.
- The
headlight flasher works only as lo ng as
you ho ld the lever -even if there a re no
lights turned on. The indicator light
Iii in
the instrument cluster illuminates when you
use t he headlight flasher.
A WARNING
Do not use the h igh beam or head light
flasher if yo u know that these could b lind
oncom ing traffic.
-

Emergency flasher
The emergency flasher makes other motorists
a w are that you or your vehicle are in an emer­
gency situation.
Fi g. 56 Center console: em ergency flasher sw itch
.. Press the switch ~~ fig. 56, to switch the
emergency flasher on or off.
When the emerge ncy flashe r is on, al l four
turn signals blink at the same time. The t urn
signal indicator lights
mlll in the instru­
ment cluster, as well as the light in the emer­
gency f lasher switch ~ blink likewise. The
emergency flashers a lso work when the igni­
tion is turned off.
The emergency flasher will automatica lly
switch on if you are in an acc ident where the
airbag has deployed.
@ Tips
You should switch on the emergency flash­
er when:
- you are the last vehicle sta nding in a traf­
fic jam so that any other vehicles coming can see you, or when
- your vehicle has broken down or yo u are
i n an emergency situation, or when
-you r vehicle is being towed by a tow
truck or if you are towing a nothe r vehicle
behind you. Clear vi
sion 51
Interior lights
Interior lights
The interior lights include the reading lights
for the driver and the front passenger .
Fig. 57 Section fro m headli ner: Interior light s
Activating door contact circuit
.. Press the button @. The L ED in the button
ill um inates.
Deactivating door contact circuit
.. Press the button @. The LED in the button
goes out .
Front read ing lights ~
.. Press one of the switches ® to turn the
r ight or left reading light on or off.
With the door contact ci rcuit, the inter ior
lights turn on as soon as you unlock the vehi­
cle or open the doors. The interior lights are
also turned on when the ignition key is re­
moved. The lights turn off about 30 seconds
after the doors are closed . When the veh icle is
locked or when the ignition is turned on, the
in terior lig hts are tu rned off.
When a door is open, the inte rior lights are
tu rned off after about 10 minutes to preve nt
batte ry dra in ing.
The brightness of the lights is controlled au­
tomat ica lly by a d immer when they are
switched on and off .

52 Clear vis ion
Instrument panel illumination
F ig. 58 Instrument panel ill umination
The illumination of the instruments, displays
and the center console can be adjusted. You
regulate the brightness of the instruments
with the left thumbwheel
CJ:J ~ fig. 58.
Ignition ON, light switch at @ .
With the ignition switched ON, the glow of in­
strument needles can be adjusted to appear
brighter or dimmer.
Ignition ON , light switch at ;oo~ or io .
With the l ights sw itched on, the brightness of
instrument cluster (i.e. needles, gauges and
displays) and center console illumination can
be adjusted.
@ Note
The instrument cl uster and cente r console
illumination (gauges and needles) comes
on when you switch on the ignition and the
vehicle headligh ts ar e off . Be aware of the
following difference between mode ls built
to US or Canadian specifications:
- USA mode ls: illumination of the instru­
ment cluster (gauges and needles), dash
and center consol e around the se lector
l ever is controlled by a light senso r locat­
ed in the instrument panel. The instru­
ment pane l illumination will a utomat i­
cally become dimmer as the daylight
fades away and eventually will go out
complete ly when outside light is very
l ow . Th is is to rem ind you, the driver, to
switch on the headlights before it gets
too dark . -
Canada models: instrument panel illumi­
nation will stay bright regardless of the
intensity of ambient light . Always be
aware of changes in outside light condi­
tions while you are driving. Respond in
time to fading daylight by tur ning the
light switch to position fD (o r "AUTO" if
your car is equipped with this feature) to
t ur n on you r headlights.
Luggage compartment light
The light is located on the right side of the
lu ggage compartme nt. These lights come on
automat ica lly when the rear lid is opened . The
lights turn off automatica lly if the lid is left
open for more then 10 minutes.
Vision
Adjusting the exterior mirrors
Fig. 59 Fo rwa rd section of driver's a rmrest: power mir ­
ror controls
Turn the knob to the desired posit ion:
Q/ P -In this pos ition, you can adjust the
driver's and front passenger's exte rior m irrors
by turning the knob in the desired d irection.
4iil -The mirrors are heated depending on the
outside temperature .
8 -The exterior mirrors fold in*
You are we ll-advised to fold the exterior mir­
rors in when maneuvering in tight spaces or
when leaving the car parked close to other
vehicles. ..,,.

_& WARNING
- Curved (i. e. convex) mirror surfaces in­
crease your field of view. Remember that
vehicles or other objects will appear
smaller and farther away than when seen
in a flat mirror.
If you use this mirror to
estimate distances of following vehicles
when changing lanes, you could estimate
incorrectly and cause an accident.
CD Note
- If the mirror housing is moved uninten­
tionally (for example, while parking your
vehicle), then you must first fold the mir­ ror electrically. Do not readjust the mir­
ror housing manually. You could damage
the motor which controls the mirror .
- If you wash the vehicle in an automatic
car wash, you must fold the exterior mir­
rors in to reduce the risk of damage to
the mirrors . Never fold power folding ex­
terior mirrors* by hand. Only fold them in and out using the power controls .
@ Tips
If there should be a malfunction in the
electrical system, you can still adjust the
exterior mirrors by pressing the edge of
the mirror .
Dimming the mirrors
Fig. 60 Automa tic dimming re arview mirror•
Manual anti-glare adjustment
• Move the small l ever (located on the bottom
edge of the mirror) to the rear.
Clear vision 53
Automatically dimming mirrors*
• To dim the rearview mirror and both exterior
mirrors, press the @button. The diode @
turns on . The rearview and exterior mirrors
dim automatically when light shines on
them, fo r ex ample from headlights on ave­
hicle to the rear .
_& WARNING
Electrolyte fluid can leak from automatic
dimming mirrors if the glass is broken .
Electrolyte fluid can irritate skin, eyes and
respiratory system.
- Repeated or prolonged exposure to elec­
trolyte can cause irritation to the respira­
tory system, especially among people
with asthma or other respiratory condi­
tions. Get fresh air immediately by leav­
ing the vehicle or, if that is not possible,
open windows and doors all the way.
- If electrolyte gets into the eyes, flush
them thoroughly with large amounts of
clean water for at least 15 minutes·
. '
medical attention is recommended.
- If electrolyte contacts skin, flush affect­
ed area with clean water for at least 15 minutes and then wash affected area
with soap and water; medical attention is recommended. Thoroughly wash af­
fected clothing and shoes before reuse .
- If swallowed and person is conscious, rinse mouth with water for at least 15
minutes. Do not induce vomiting unless
instructed to do so by medical professio­
nal. Get medical attention immediately .
CD Note
Liquid electrolyte leaking from broken mir­
ror glass will damage any plastic surfaces
it comes in contact with. Clean up spilled
electrolyte immediately with clean water
and a sponge. .,..

54 Clear vision
@ Tips
-Switching off the dimming function of
the inside rear view mirror also deact i­
vates the automatic dimming f unction of
the exterior m irrors.
- The automatic dimming mirrors do not
dim when the interior lighting is turned
on or the reverse gear is selected .
-Automat ic dimming for the m irror only
operates properly if the light striking the inside mirror is not hindered in any way.
Sun visors
Using the sun visors makes driving safer.
Fig. 61 Sun viso r
The vanity mirrors in the sun v isors are equip­
ped with lids. Push lid in direction of arrow to
open.
Wiper and washer system
Windshield wiper
The windshield wiper lever controls both the
windshield wipers and the washer system .
Fig. 62 Wiper lever: wind shi eld w iper lever pos it ions
T he windshield wiper lever i=:> fig. 62 has the
following positions:
Intermittent wiping ~l (activating rain
sensor)*
.. Move the lever up to position (D.
.. Move the interval set switch @, to change
the intervals.
Low wiper speed
.. Move the lever up to position @.
High wiper speed
.. Move the lever up to posit ion @.
One-touch wiping
.. Move the lever to position @, when you
want to wipe the windshield
briefly.
Automatic wiper/washer
.. Pull the lever to position ® (to ward the
steering whee l) and hold .
.. Release the lever . The washer stops and the
w ipers keep going for about four seconds.
Turning off the wipers
.. Move the lever back to position @ .
The windshield w ipers and washer only work
when the ignition is turned on. If you switch
off the igni tion with the windshie ld wipe r lev­
er still in the interval wipe position and then
come back a while later and drive off, the ra in
sensor will reactivate itself after the vehicle
speed has exceeded 4 mph (6 km/h).
Th e rai n sensor* is only activated with the
wiper lever set to position
(D. When it starts
to rain, the rain senso r will a utomat ically acti­
vate the intermittent wiping mode .
To reduce the sensitivity of the sensor, move
swi tch @ down. To increase the sensitivity,
move the switc h 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 5 7, 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 .
(I) 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
Clear vision 5 5
in the car wash if it should suddenly
come on.
(0 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 48,
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 48, fig. 52.
-Make sure the washer fluid reservoir in
the engine compartment is topped off
before going on a long trip. Look up
¢
page 179 for checking and filling the
washer container .
- The wipers only operate with the hood
completely closed .
Headlight washer system
Applies to vehicles: with headlight washer system
The headlight washer system cleans the
headlights.
"'Operate the windshield wiper/washer sys­
tem
o page 54, fig. 62 ® with the head­
lights turned on by holding the lever for lon-
ger than one second . ..,.

56 Clear vis ion
The washer jets extend forward out o f the
front bumper driven by water pressure to
spray the front headlights with water.
You shou ld inspect the headlights regularly
(for example when refueling) and clean
off
any solid dirt or insects from the lenses .
To ensure the system wo rks properly in wi nter,
keep the washer jets free of snow and remove
any ice using a de-icing spray.
Service position
It is only possible to change wiper blades if
you move the wiper arms to the service posi ­
tion .
In o rder to use the windsh ield wipers, t he
front lid mus t be comp lete ly closed.
Moving w iper blades to the service
position
• When there is a risk of frost, make s ure that
the wiper b lades a re not frozen to the wind­
shield .
.. Switch the ignition on.
.. Move the wiper lever to position
0
c> page 54, fig. 62.
.. Press the I Reset I button until the Displa y
typ e
menu appears in the Driver Informa­
t ion System display .
.. Us ing the rocker switch and the
! Reset ! but­
ton, select the
S et > W iper s > Front > Serv­
ice positi on on
function. The winds hield
wiper arms move to the service position.
Moving wiper blades to park position
.. Make certain that the wiper arms are lying
against the windshie ld .
.. Switch the ign ition on and move t he wiper
l ever from posi tion
O to 4 c> page 54,
fig . 62 .
The wiper arms will move back to
the park position.
«I) Note
Never drive yo ur vehicle when the w ind­
shie ld w iper arms are in the service pos i­
tion and pulled away from the windshie ld .
When you dr ive faste r than 4 mp h (6 km/ h), the wiper a
rms automatically return to
the park position and cou ld cause paint
damage to the front lid!
(D Tips
- Yo u can also turn on the se rvice posit ion,
for example, if yo u want to protect the
w indshield from icing by using a cover .
- The service posit ion moves to
off a uto­
matically when you operate the w ind­
shield wiper lever, or speed exceeds
4 mph (6 km/h).
Cleaning windshield wiper blades
Clean the windshie ld w iper blades when they
begin to leave streaks. Use a soft cloth and
glass cleaner to clean the windshield wiper
blades.
.. Place the windshie ld w iper arms in the serv­
ice pos it ion . Refer to
c::> page 56 .
"' Lift the wiper arm away from the front win­
dow.
_&. WARNING
Di rty windsh ield wiper b lades can impair
your view. This can lead to accidents .
-

Replacing windshield wiper blades
Wiper blades in good condition help keep the
windshield clear .
Fig. 63 U nl atc hing wiper bla des
Fi g. 6 4 Remov ing wipe r bla des
Removing the wip er blade
• Move the wipers to the service position
c::> page 56.
• Fold the w indshield wiper arm away from
the g lass.
• On the upper end of the wiper a rm at the
corrugation, squeeze the plastic retainer to­
gether on both sides in the direction of the
arrow c::>
fig. 63.
• Rotate the w iper blade in the direction of
the arrow @c::>
fig. 64 away from the w iper
arm .
• Lift the w iper blade off in the direction of
the a rrow @.
Inst alling the wiper blade
• Place the rounded end of the wiper onto the
end of the wiper arm in the
opposit e direc­
t ion to the arrow @ c::>
fig. 64 .
• Swing the wiper in the opposite direction to
the a rrow @onto the wiper arm.
• Sq ueeze the corrugation on the w iper until
you hear it click in the wipe r arm .
Clear vi sion 5 7
• Fold the wiper arm back onto the wind ­
shield.
• Move the wipers to the park position
c::>
page 56.
The front wipe r blades measure left side
23 .20 in . (590 mm) and right side 18 .50 in.
(470 mm) in length.
C lean you r wiper blades regularly with a wind ­
shield washer solution to prevent streaking. If
the b lades are very dirty, for examp le with in­
sects, carefully clean the b lades with a sponge
or a soft brush.
If the wiper blades begin to streak the wind­
shield, this cou ld be caused by residue left on
the windshie ld by automatic car washes.
Fill the wi ndshield washe r container with a
spec ial solutio n availab le at your aut horized
Audi dealer to remove the resid ue .
Be sure to inspect t he condition of your wiper
blades regularly. For safety reasons, rep lace
your wiper blades once or twice a year if nec­
essary . See yo ur authorized Aud i dealer for re­
placement blades.
A WARNING
For your safety, you shou ld rep lace the
wiper b lades once or twice a yea r. See your
a uthorized Audi dealer for replacement
b lades.
(D Note
- The w indshie ld w iper blades must only
be replaced w hen in the service pos ition
c::>
page 56! Otherw ise, you risk damag­
ing the paint on the hood or the wind­
shield wiper mo to r.
- T o help p revent damage to the w iper sys­
tem, always loos en blades wh ich are fro­
z en to the windshield before operating
w ipers.
- T o help p revent damage to wiper blades,
do not use gaso line, kero sene, paint
t hinne r, or other solvents on o r near the
w iper blades.

58 Clear vision
-To help prevent damage to the wiper
arms or oth er components, do not at­
tempt to move the wipers by hand.
@ Tips
- Commercial hot waxes applied by auto­
matic car washes aff ect the cleanability
of the glass surface .
- The front wiper blades are different
lengths; the blade on the driver's side is
longer .
Digital compass
Activating or deactivating the compass
Applies to vehicles: with digital compass
Fig. 65 Inside re ar view mirro r: di gital compass ac ti­
va ted
• To activate or deactivate , hold the@
¢ fig. 65 button down until the red display
appears or disappears.
The digital compass only works with the igni­
tion turned on . The directions are displayed as
initials:
N (North), NE (Northeast) , E (East),
SE (Southeast) , S (South), SW (Southwest),
W (West), NW (Northwest).
The compass has to be recalibrated if the dis­
play is wrong or inaccurate
¢ page 58.
(j) Tips
-To avoid inaccurate directions, do not al­
low any remote controls, electrical sys­
tems, or metal parts close to the mirror.
- The correct magnetic deflection zone
must be set in order to display the direc­
tions correctly.
Setting the magnetic deflection zone
Applies to vehicles: with digital compass
Fig. 66 North A meri ca : magn etic defle ction zo ne
bo undaries
• Hold the@¢ page 58, fig. 65 button down
until the number of the set magnetic deflec ­
tion zone appears on the interior rear view
mirror .
• Adjust the magnetic deflection zone by re­
peatedly pressing on the@button. The set
mode automatically deactivates after a few
seconds.
Calibrating the compass
Applies to vehicles: with digital compass
• Hold the @button down until the letter C is
displayed on the interior rear view mirror .
• Drive in a circle at a speed of about S mph
(10 km/h) until a direction is shown on the
interior rear view mirror.
_&. WARNING
The digital compass is to be used as a di­
rectional aid only. Even though you may
want to look at it while you are driving, you
must still pay attention to traffic, road and
weather conditions as well as other possi­
ble hazards.
-