2015 AUDI TT ROADSTER light

-Do not interchange the positive and neg­
ative cables .
- When working on the battery , be sure
not to short-circuit the terminals with
tools or other metal objects. This would cause the battery to heat up very quickly,
which could lead to damage or explosion and personal injury.
- When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal injury .
- Always keep the battery well out of the reach of children .
- Before work is done on the electrical sys­
tem, disconnect the negative ground ca ­
ble .
- Before performing any work on the elec ­
trical system , switch off the engine and
ignition as well as any electrical equip­
ment. The negative cable on the battery
must be disconnected. If you are just go­
ing to replace a light bulb, then it is
enough to switch off the lights.
- Before disconnecting the battery , switch
off the anti-theft alarm system! Other­
wise you will set off the alarm.
- When disconnecting the battery, first
disconnect the negative cable and then
the positive cable.
- Before reconnecting the battery, make
sure all electrical consumers are switch­
ed off. Reconnect the positive cable first
and then the negative cable. Never inter­
change the cables - this could start a fire!
- Never charge a fro zen or a thawed-out
battery. It could explode! If a battery has
frozen, then it must be replaced. A dis­
charged battery can freeze over at 32 °F
(0 °C) .
-Make sure the vent hose is always attach­
ed to the opening on the side of the bat ­
tery.
- Never use batteries which are damaged.
Danger of explosion! Always replace a
damaged battery.
Checking and filling 177
A WARNING
California Proposition 65 Warning:
- Battery posts, terminals and related ac­ cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc ­
tive problems . Wash hands after han­
dling.
Q) Note
- Do not disconnect the vehicle battery
when the ignition is switched on or when
the engine is running, otherwise , you will
damage electronic components in the
electrical system.
- If your vehicle is going to stand for a
long period of time without being driven,
protect the battery from "freezing", oth­
erwise it will be damaged and will then
have to be replaced.
Checking the battery acid level on magic
eye batteries*
The battery acid level in the battery can be
checked through the clear inspection window .
Fig. 134 Lugg age compar tme nt: Battery w ith mag ic
e ye .
On top of the battery, there is a round "win­
dow". This window (magic eye) changes color
as the battery charge and acid level change.
.,. Read and heed all WARNINGS
~.&_ in
Working on the battery on page 176
.. Read the acid level from the window on the
battery ~
fig. 134. Ill>-

@ Tips
The vehicle battery must not be charged
with a standard small charger that plugs
into the cigarette lighter or out let.
Windshield/headlight
washer container
F ig . 135 Fen der, left: c over on th e win ds hield and
h ead lig ht· washe r fl uid reservoi r
The washer flu id container is marked with the
symbol
Q on its cap Qpage 166, fig. 128 .
• Before you check anyth ing in the engine
compartment,
always r ea d and h eed all
WARNING S Q .&. in Working in the engine
compartment on page 164 .
• Lift the filler cap tongue to add washer flu­
id. You can fill the container to the top.
• Press the cap back onto the filler neck after
filling the containe r.
You can f ind the rese rvoir
ca paci ty in the tab le
in
~ page 223.
Clean water should be used when fill ing up . If
possib le, use soft water to prevent sca ling on
the washer jets. Always add a glass cleaner solu tion (with fros t protection in the w inter) .
(D Note
-Do not mix engine coolant antifreeze or
any other addi tives to fill up the wind­
s hi eld washer reservo ir.
- Do not use glass cleane rs contain ing
paint solvent; you r isk damaging the
pain t.
Checkin g and fillin g 179

forget the spare tire. If the press ure in any tire
is too high when the tire is "cold," let air out
of the tire slowly with the edge of the t ire
gauge and keep checking the pressure until
you reach the pressure that is correct for the
load (passengers and luggage) and kind of
driving you plan to do .
If the pressure in any tire is too low, note the
d ifference between the pressure in the cold
tire and the pressure you need and add the a ir
that you need to reach the correct pressure for
the veh icle load (passengers and luggage) for
the tires on your veh icle as listed on the on
your ve hicle and in this manua l and the kind
of dr iving you p lan to do .
Never exce ed the ma ximum inflation pres ­
s ur e listed on t he tire s idewall for any re a­
s on.
Remember that the vehicle manufacturer , not
the t ire manufacturer , determ ines the correct
tire pressure for the tires on your veh icle .
It is important to check the tire pressure when
the t ires a re cold .
- Read the req uired tire press ure from the tire
pressure label located on driver's s ide B-pil­
l ar .
- Turn the valve stem cap counter-clockwise
to remove it from the tire valve .
- Place the air pressure ga uge on the valve.
- The tire pressures sho uld on ly be checked
and adjusted when the tires are cold . The
s light ly raised pressures of warm tires must
not be reduced.
- Adjust the tire pressure to the load you are
carrying.
- Re insta ll the va lve stem cap on the valve .
When should I check the tire pressure?
The correct tire pressure is espec ially impo r­
tant at high speeds . The pressure sho uld
therefore be checked at least once a month
and a lways befo re starting a journey.
When should I adjust the tire pressures?
Adj ust the tire pressu re to the load you are
carry ing . After changi ng a wheel
or replacing
Tire s an d wheel s 187
whee ls yo u have to adjust the ti re p ressu res
o n all whee ls. In addition, yo u m ust then initi­
a lize the new tire pressu res in the t ire pres­
s u re monitoring system
Q page 198.
A WARNING
Incorrect tire pressures and/or underinfla­
tion can lead sudden tire fa ilure, loss of
control, collision, serio us pe rsonal injury
or even death.
- When the warning symbol
It] appears in
the instrument cluster, stop and inspect
the t ires.
- Inco rrect tire pressure and/or underinfla­
tion can cause increased tire wea r and
can affect the handling of the vehicle and
stopping ability.
- Inco rrect tire pressures and/or unde rin­
flation can a lso lead to sudden t ire fail­
ure, including a blowou t and su dden de­
flation, caus ing loss of veh icle cont ro l.
- Th e drive r is responsib le for the co rrec t
tire pressures for all tires on the veh icle.
The applicable pressure values a re locat ­
ed on a sticke r on the driver's side B-pil­
lar.
- On ly when all tires on the vehicle are fil ­
led to the correct pressure, the t ire pres­
sure mon itor ing system can work cor­
rectly.
- The use of incorrect tire pressu re va lues
can lead to acc idents or other damage.
Therefore it is essential that the driver
observe the spec ified t ire pressure val ues
for the tires and the correct pressures for
the function of the t i re p ress ure monito r­
ing system.
- Always inf late t ires to the recommended
and correct t ire p ress ure before dr iv ing
off.
- Driving with unde rinflated tir es bend
mo re, lett ing t hem get too hot resulting
in tre ad separ ation, sudden tire failure
and loss of cont rol.
- Excessive speed and/overloading can
cause he at bu ild- up, sudden tire failure
an d loss of cont rol. •
•

remain continuous ly illuminated . This se ­
quence will continue upon subsequent vehicle
start-ups as long as the ma lfunction ex ists.
When the malfunct ion indicator is ill uminat­
ed, the system may not be able to detect or
signa l low tire pressure as intended. TPMS
malfunct ions may occur for a variety of rea­
sons, including the installat ion of replace­
ment or alternate tires or wheels on the veh i­
cle that prevent the TPMS from funct io ni ng
properly. Always check the TPMS malfunct ion
tellta le afte r replacing one or more t ires or
wheels on your veh icle to ensure that the re­
p lacement or a lternate tires and wheels allow
the TPMS to continue to function properly.
Tire pressure indicator appears
Applies to vehicles: with tire pressure monitoring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
F ig. 1 41 Disp lay : under in fla tion warn ing
Using the ABS sensors, the tire pressure moni ­
toring system compares the t ire tread circum­
fe rence and vibration characteristics of the in­
d iv idual tires . If the pressure decreases in one
or mo re tires, th is is indicated in the instru­
ment clus ter with a warning symbol
[I] and a
message
'* fig. 141. The dr iver message in the
d isp lay goes out after 5 seconds . The driver
message can be d isplayed again by pressing
the
! CHECK I button @¢ page 10, fig . 3 . If on ­
ly one tire is affected, the display will indicate
its pos ition.
The ti re pressure monito ring m ust be reset in
the menu display each time the pressures are
ad justed (e.g. when switching between parti-
Tire s an d wheel s 199
al and fu ll load pressure) or after changing o r
replacing a tire on your vehicle '*
page 200.
The TPMS indicator on ly mon itors the t ire
pressure that you have previously stored . You
can f ind the recommended tire pressures for
your vehicle on the label on the driver's door
pillar ¢
page 184 .
Tire tread circumference and vibration charac­
teristics can change and cause a tire pressure
warning if:
- the t ire press ure in one or more tires is too
low,
- the tire has structural damage,
- the t ire press ure was changed, wheels rotat -
ed or rep laced but the TPMS was not reset
¢ page 200.
Warning symbo ls
[I] Loss of press ure in at least one tire'*& .
Check the tire or tires and rep lace or repa ir if
necessary . The indicator light
[I] in the instru ­
ment cluster a lso i lluminates
¢ page 13.
Check/correct the press ures of all four tires
and reset TPMS in the menu display .
mm (T ire Pressure Monitoring System) Ti re
pre ssure! System malfun ction . Ifll appears
after switching the ign it ion on or while dr iving
and the indicator light
[I] in the instrument
clus ter blinks fo r approximately one m inute
and then stays on, there is a system malfunc ­
tion . Attemp t to store the correct t ire pres­
su re '*
page 200 . If the ind icator light does
not turn off or if i t turns on shortly thereafte r,
immedia tely drive your vehicle to an au thor­
ized Audi dea ler or author ized repai r fac ility to
have the malfunction corrected .
A WARNING
=
-If the tire pressure indicator appears in
the instrument cluster display, one or
more of your t ires is significant ly under­
inflated. Reduce your speed immediately
and avoid any hard steer ing or b rak ing
maneuvers. Stop as soon as possib le and
check the tires and their pressu res . In­
flate the tire pressure to the prope r pres-
sure as indicated on the vehicle's tire .,..
•
•

Handling characteristics change when
driving with low air pressure or with flat
tires even with special run-flat tires
A low pressure or flat front tire affects vehicle
handling characteristics by pu lling the vehicle
slightly to the side where the tire is mounted
and reduces braking performance .
A low pressure or flat
rear tire also affects
driving character istics by pulling to the side
where the tire is mounted and also reduces
brak ing performance. The effect on vehicle
handling is most not iceable when driving
around curves.
A WARNING
Changed vehicle handling character istics
when driving in the run -f lat mode can
cause loss of vehicle contro l, a crash and
serious personal injury.
- Driving on special run-flat tires in the
run-f lat mode wi ll change vehicle han­
dling characteristics during braking,
when cornering and under heavy acceler­
ation.
- Never drive faster than the maximum
rated speed of 50 mph (80 km/h) when
dr iv ing in the run -flat mode.
- Always adjust vehicle speed to traffic,
road and weather cond itions and drive
slower than the max imum rated speed if
necessary weather and road conditions
are taken into account.
- Always obey speed limits and other traf­
fic laws.
Q) Note
We always recommend driving w ith even
more care when using these special t ires in
the run-flat mode . Always avo id sudden
maneuvers.
Tires and wheels 203
Replacing run-flat tires and rims
App lies to veh icles : w it h Run -flat t ires
Your vehicle was especially designed to use
special run-flat tires.
You may use and combine only approved run­
flat tires and special matching rims that have
been designed for run-flat tires. Mounting
special run-flat tires on standard wheels will not work and w ill not prov ide the advantages
fo the ru n-falt feature . Never use spec ial run­
flat tires on standa rd wheel rims.
After dr iving with a tire i n the run-flat mode,
always have the veh icle and affected tire(s)
and rim(s) inspected by a n authorized Audi
dealer. Tires that have been driven in the run­
f lat mode must be rep laced .
A WARNING
-Use of damaged run-flat tires and rims can
cause vehicle damage that can lead to loss
of vehicle control, a crash and serious per­
sonal injury.
- Always have the vehicle and affected
tire(s) and r im(s) inspected by an author­
ized Audi dealer after driving a tire in the
run-flat mode .
- Tires that have been dr iven in the run­
f lat mode must be replaced.
•
•

~ Remove the dust cap from the valve of the
defective tire.
~ Screw the hose@) onto the va lve 0
¢ fig . 151.
~ Inser t the plug @¢ fig. 150 into the socket
for the cigarette lighter.
~ Switch on the ignition.
Inflating t ire
~ Move the switch@¢ fig. 151 on the e lec­
tric a ir pump
l ) to posit ion I. After 5 mi­
nutes, t ire pressure must have reached at
least 1.8 bar .
~ Switch the electric a ir pump off -switch in
pos ition
0 . If the requ ired tire pressure of at
least 1.8 bar has not been reached, follow
the i nstructions in the sec tion
Re-inflating
tire.
Re -inflating tire
~ Remove the hose from the valve and pull the
plug out of the socket.
~ Drive the vehicle slow ly 10 mete rs bac kward
or forward. This helps to dist ribu te t he sea l­
ant better .
~ Remove the empty inflation bott le and
screw the hose®¢
fig. 150 from the elec ­
tric pump directly onto the valve.
~ I nsert the plug@¢ fig. 150 into the socket
for the ciga rette lighter.
~ Switch on the ignition .
~ Move the switch @¢ fig. 151 on the elec­
t ric a ir pump
ll to pos it io n I. After 5 mi­
nutes, t ire pressure mus t have reached at
least 1.8 b ar.
~ Switch the electric a ir pump off -switch in
position
0 . If the required tire pressure of at
l east 1.8 bar has not been reached, it is not
poss ib le to make a repa ir with the tire seal­
ant. Seek professional ass istance.
Disas sembling Tire Mobility System
~ Remove the hose from the valve and p ull the
plug out of the soc ket .
~ Screw the d ust cap onto the va lve.
l ) The e lectr ic a ir pu m p sho uld never r un for lo ng er than
6 m in utes.
What do I do now? 207
~ Place the empty sea lant bott le back in the
original packaging and clip it in place under
the floor so that no tire sea lant can run out
into the veh icle.
~ Place the electric air pump in the luggage
compartment for the t ime being .
~ Start driv ing right away so that the sealant
is dist ributed in the tire.
.&_ WARNING
- Follow the manufacturer 's safe ty inst ru c­
tions on the de cal for the ai r pump and
the sealan t bottle .
- If a tire pressure of 1.8 bar cannot be
achieved after pumping for 5 minutes,
the ti re is too severe ly damaged. Do not
continue to drive .
- Seek pro fessional assistance if it is not
possible to repa ir the tire with the t ire
sealant.
(D Tips
- Do not opera te the elec tric air pump fo r
more than 6 minutes without stopping,
otherwise it can overheat . When the ai r
pump has coo led down, you can continue
to use it.
- If sea lant has escaped, allow it to dry,
then yo u can peel it off.
Final check
App lies to vehicles : wi th Tire Mobility Sys tem
After d riv ing for a short d istance , tir e
pressure must be checked
~ After driving for about 10 mi nutes, stop and
check the tire pressure .
~ If tire pressu re is st ill at least 1.3 bar, in­
flate the tire to specified press ure (see dr iv­
er's side B-pillar), drive to the next repa ir
shop and have the tire and the sealant bot­
tle replaced.
~ If tire pressu re is less than 1.3 bar, the t ire
is too severely damaged. Do not continue to
drive . Seek professional assistance. ..,.
•
•

210 What do I do now?
slip and cause an injury if it does not
have sufficient hold on the vehicle.
- A soft or unstable surface under the
jack may cause the vehicle to slip off
the jack. Always provide a firm base for
the jack on the ground . If necessary,
use a sturdy board under the jack.
- On hard, slippery surface (such as tiles)
use a rubber mat or similar to prevent
the jack from slipp ing .
- To help prevent injury to yourself and
your passengers:
- Do not raise the vehicle unti l yo u are
sure the jack is securely engaged.
- Passengers must not remain in the ve­
hicle when it is jacked up.
- Make sure that passengers wait in a
safe p lace away from the vehicle and
well away from the roadway and traffic.
- Make sure jack position is correct, ad­
just as necessa ry and then continue to
ra ise the jack .
(D Note
A floor jack or the pads on the hoist arms
must
not be posit ioned at the points
shown
-arrows- .
Taking the wheel off
Follow these instructions step-by-step for
changing the wheel.
Fig. 157 Wheel ch an ge: us ing the sc rewdrive r hand le
(w ith the b lade removed) to turn the bolts
Fig. 158 Whee l change : alignmen t pin inside the top
hol e
After you have loosened all wheel bolts and
raised the vehicle off the ground, perform the
following steps to remove and replace the
wheel:
Removing the wheel
.,. Use the hexagonal socket in the screwdriv­
er handle
to completely turn out the top­
most whee l bolt and set it aside on a
clean
surface c;, fig. 15 7.
.,. Screw the threaded end of the
alignment
pin from the tool kit hand-tight into the
now vacant bolt hole <=>
fig. 158 .
.,. Then completely unscrew the other wheel
bolts as described above.
.,. Take off the whee l leaving the alignment pin
in the bolt hole
c;,(D .
Putting on the wheel
.,. Lift the spare wheel and carefully s lide it
over the alignment p in to guide it in place
c;,(D .
.,. Use the hexagonal socket in the screwdriver
handle to screw in and tighten all whee l
bolts
slightly .
.,. Unscrew the alignment p in and insert and
tighten the remaining wheel bolt slightly like the rest .
.,. Turn the jack handle counter-clockwise to
lower the vehicle until the jack is fully re­
leased .
.,. Use the wheel bo lt wrench to tighten all
wheel bolts firmly ,=:,
page 208 . Tighten
t hem
crosswise, from one bolt to the ( ap­
proximately) opposite one, to keep the
wheel centered.

Fuse Location, Instrument Panel left
0
Fig. 161 Fuse carrier behind the instrument panel end
face, cover removed
Some of the eq u i prnent items listed a re op­
tional or only available on certain model con­
f igurations.
Note that the following table is accurate at
the time of going to press and is subject to
change. In the event of d iscrepancies, the la­
bel on the in side of the cover always takes
precedence .
The power seats are protected by circuit
breakers ,
which automatically reset after a
few seconds after the overload has been rem­
ed ied.
No. Equipment Amps
Engine relay, fuel tank cont ro l
1
unit, A irbag Off light, light
10 switch (sw itch illumi nation), di-
agnostic connector
2
ABS, ASR, ESC, brake light
5 switch
3 AFS headlight (left) 5
No.
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21 22
23
Fuses and bulbs 213
Equipment Amps
Oil level sensor (extended main-
tenance interval)
(WIV), t ir e
press ure monitoring system,
sw itch for Electron ic Stabiliza-
5 tion Control (ESC), AFS head-
lights (control unit), A/C system
(pressure sensor), backup light
sw itch
Automatic headlight range con- trol, AFS headlight (right) /
5/10
manual headlight range con-
trol, halogen headlights
Control unit for CAN data trans-
fer (gateway), electrornechani-
5 cal steering, automatic trans-
miss ion shift gate
Acoustic Park Assist, automatic
d ip ping interior rear
view rnir-
ror, garage door opener, heata-
5 ble windshield washer nozzles,
washer pump, w ind deflector
relay (Roadster)
H aldex clutch/Ha ldex clutch
5/10 (TTS)
Control un it Audi magnetic ride
5
A irbag contro l unit 5
Mass airflow sensor, crankcase 5/10
heating
Door control unit (central lock -
10 ing driver/passenger)
Diagnostic connector
10
Rain sensor, automatic trans-
5 miss ion sh ift gate
Roof light (interior lighting)
5
A/C system (contro l unit) 10
Tire pressure monitoring sys -
5 tern (control un it)
Not used
Not used
Not used
Fuel injectors (gasoline eng ine)
10
Wind deflector (Roadster) 30
Horn 20