engine AUDI TT ROADSTER 2015 Manual PDF

Tires an d wheel s 185
you have stored. The system does not
recognize the load condition of your vehicle.
The effectiveness of the ti re pressu re monitor­
ing sys tem w ill be impaired if you store no r­
mal load pressures but then operate the vehi ­
cle at its maximum load¢,&.
See the illustration¢
fig. 136 for the location
of the label on dr iver's side B-pillar (color of
the actual labe l and exact location on the ve­
hicle wi ll vary slig htly) .
Note that the fo llowing tab le is accurate at
the t ime o f go ing to press and is subject to change. In the
event of discrepancies, the ti re
pressure label (on driver's side B-pi llar) always
takes precedence .
T he table below lists the recommended cold
ti re inflation pressures for the Audi mode l
covered by your Owner's Literature at the vehi­
cle's capacity weight and the t ire sizes instal­
led on the respective models as orig inal
equipment, or as a factory option.
Model/ Tire designation Tire pressure front Tire pre ssure rear
Engine full load full load
normal load condition normal load
condition
condition
(2 occupants condition
(2 occu-
( upto 2 oc-
plus lug- (
up to 2 oc-
pants plus
cupants) gage ) cupants)
luggage)
PSI kPA PSI kPA PSI kPA PSI kPA
TT /TI S: 225 /50 Rl 7 94H All Sea -
32 220 32 220 29 200 29 200 2.0 liter son
4-cyl in-
225/50 Rl 7 94W XL Hi gh
d er
Perf or man ce
32 220 32 220 29 200 29 200
24 5/ 45 Rl 7 95 H All S ea-
32 220 32 220 29 200 29 200 son
245 /45 R1 7 95YX L High
32 220 32 220 29 200 29 200 Performance
245 /40 R18 93H All S ea-
32 220 32 220 29 200 29 200 son
2 45 /40 R18 93Y XL High
32 220 33 230 29 200 30 210 Perf or mance
255 /35 R19 96 Y XL High
32 220 32 220 29 200 29 200
Perfo rmance
X L= r einf orced or extra lo ad tire. It ma y al so app ear a s xl, EX TR A LO AD, or RF on the tir e side-
wa ll.
The correct tire pressure for the spare wheel is
located on a label on the driver's side B-pillar.
Because technical changes may be made to
vehicle equ ipment during the model year, al­
ways compare the tire size designation on the
tire pressure label on your vehicle w ith the
tires on your vehicle. Ma ke sure that the tire
size information on the veh icle label is the same
as the size of the tires on the veh icle.
Th is is espec ially important if the veh icle be­
longs to someone else o r you boug ht the vehi­
cle w ith diffe rent rims/tires or you bought the
vehicle as a prev iously owned vehicle.
Remember, your safety and that of your pas-
sengers also depends on making sure that
IJll,
•
•

204 What do I do now ?
What do I do now?
Trunk escape handle
In case of an emergency, the rear lid can be
opened from the inside using the trunk es­
cape handle.
Fig. 1 46 Luggage compartment: Trunk escape handle
... To open the trunk lid pu ll the handle down
as indicated by the -arrow-~
fig. 146.
The trunk escape handle inside the storage
compartment is made of fluorescent materia l
to g low in the dark.
A WARNING
The trunk escape handle is to be used only
in an emergency.
Vehicle tool kit
The tools are stored underneath the floor
panel in the luggage compartment.
Fig. 1 47 Luggage co mpa rtment : veh icle too l kit
... Swing the luggage compartment floor up­
wards .
... Remove the veh icle tool k it.
The on board tool kit includes: -
Hook for removing wheel covers *
- Plastic clip to remove wheel bo lt covers•
- Wheel bolt wrench
-Alignment pin for changing wheels
- Screwdriver with reversible blade
- Replacement bit (reversible Torx bit for
chang ing lamps)
- Open ended wrench 10 x 13
- Towing eye
- Jack*
Some of the on board items listed above are
provided on certain mode ls only or are option­
al ext ras.
Before returning the jack* to its place, retract
the jack arm fully .
A WARNING
Im proper use of the vehicle jac k can cause
serious personal injuries .
- Never use the screw driver hex head to tighten wheel bo lts, since the bolts can­
not attain the ne cessary tighten ing tor­
que if you use the hex head, potentially
causing an accident.
- The factory-supplied jack is intended on­ ly for your vehicle model. Under no cir­
cumstances should it be used to lift
heavy vehicles or other loads; you risk in­
juring yourself.
- Never start the engine when the vehicle
is raised, wh ich could cause an acc ident.
- Support the vehicle secure ly wit h appro­
priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potential risk for injury.
- Never use the jack supplied with your
Audi on another vehicle, part icularly on a
heavier one. The jack is only su itable for
use on the veh icle it came with .

212 Fuses and bulbs
Fuses and bulbs
Electrical fuses
Replacing fuses
Fuses that have blown will have metal strips
that have burned through .
Fig. 159 End face of instrument panel: rem ov ing cover
p la te to access fuses
Fig. 160 Left side of eng ine compart men t: fuse cove r
Fuse cover on the left end face of the
inst rument pane l
.. Switch off the ignition and the electrical
component affected.
.. Carefully pry the fuse cover off the instru­
ment panel using the ignition key or a
screwdriver
c;::> fig. 159 .
.. Check the fuse list ing on the next pages to
find out which fuse belongs to the compo­
nent which has failed
o page 213, Fuse Lo­
cation, Instrument Panel left .
.. Remove the blown fuse with the plastic clip
provided. The cl ip is located on the holder in
the fuse box .
.. Replace a blown fuse (recognizable by the
melted metal str ip ins ide) with a fuse of the
same amperage .
.. Firmly snap the cover back onto the instru­
ment pane l face .
Fuse cover in engine compartment
.. Switch the ignit ion and the affected con­
sumer off .
.. Unlatch the fuse cover , push the two slides
forward
c;::> fig. 160.
.. Find out which fuse belongs to the equip­
ment which stopped working
c;::> page 214,
Fuse location , le~ side of engine compart­
ment .
.. Remove the plastic from its retainer in the
fuse box cover (left face end of the instru­
ment panel), place it on the fu se in question
and pull it out .
.. If the fuse is burned out (recognizable by
melted strips of metal), replace it with a
new fuse
of the same rating.
.. Replace the fuse cover .
.. Push the two slides to the rear
o fig. 160.
Install the fuse cover carefully to prevent
water from enter ing .
The various electrical circuits are protected by
fuses. The fuses are clustered in a centralized unit. The unit is located behind the face panel
at the end of the instrument panel.
You are well advised to keep a supply of spare
fuses in your vehicle. Fuses with the proper
ampere ratings are available at your author ­
ized Audi dealer.
A WARNING -
Do not repa ir fuses and never replace a
blown fuse with one that has a higher amp
rating. This can cause damage to the elec­
trica l system and a fire.
(D Note
If a new fuse burns out again after shortly
have you have installed it, have the electri­
ca l system checked by your authorized
Audi dealer.

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

214 Fuses and bulb s
No. Equipment
24 Transmi ssion (contro l un it)
25 Heate
r rear window Coupe /
heated rear window Roadster
26 Driver'
s side power window
27 Passenger's s ide power window
28 No
t used
29 Washer pump
30 Cigarette lighter
31 Start er
32 Steering column module
33 Instrument clust er
34 Radio navigation system , radio
35 Aud io amplifi er
36 Engine (control un it)
37 CAN (Gat
eway)
38 Ciga
rette lighter
39 Not us ed
40 Not used
4 1 Not u sed
42 Not used
43 No t used
44 Not used
45 No
t used
46 Not used
47 SOARS tuner, cell phone pack-
age,
TV tuner
48 VOA interface
49 Not used
Fuse location, left side of engine
compartment Amps
15
30/ 20
30 30
15
20
40 5
5
20/15
30 10
5
20
5 5
Fi g. 162 Ill ustra tion of fus e ho lde r on l eft side o f en·
gi ne compar tment: fuse s (withou t fuse c over)
Some of the equipment items listed are op ­
tiona l or only avai lable on c ertain mod el con­
figurations.
Note tha t the foll owing table i s ac cur ate at
the time of going to pre ss and is subject to
change .
Fus e holder (bla ck )
No . Equipment Amps
1 Not used
2 Not used
3 Not used
4 No t used
Anti- theft warning system (sen -
5 sor), ant
i-theft warn ing system
5
(horn)
6 Headlamp washer system
30
7 Elec
tric fuel pumps (supp ly)
15
8 W
indshield wipers
30
9 H
eat ed seats (dr iver and pas-
25
senger)
10 L
umbar support (d river and
10
passenger)
11 Not u sed
12 Vent ilation blower 40
Fus e holder (brown )
No. Equipment Amps
1 Not used
2 Not used
3 Not used
4 Not used
5 Relay coil
relay volume cont ro l
5
va lve
6 02
sensors
10
7 P
ositioning valves pre-wired en-
10
gine harness
8 Ignition coi ls 20
9 Eng
in e (cont rol unit)
25
10 Water pump de layed-off 10
1 1 F
e e d (brak e pedal)
5
1 2 Activated charcoal filter/charge
10
p ress ure control va lve

Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace burned
out bulbs for you .
It is becoming increasingly more and more
difficult to replace vehicle light bulbs since in many cases, other parts of the car must first
be removed before you are able to get to the
bu lb. This appl ies especially to the light bu lbs
in the front of your car which you can on ly
reach through the engine compartment .
Sheet metal and bulb ho lde rs can have sharp
edges that can cause ser ious cuts, and parts
must be correctly taken apart and then prop­
erly put back together to help prevent break­
age of parts and long term damage from wa­
ter that can enter housings that have not been
properly resealed.
F or your safety, we recommend that you have
your authorized Audi dealer replace any bulbs
for you, since your dealer has the proper tools,
the correct bu lbs and the expertise.
G as disc harge la mp s (X enon li ght s)*:
Due to the high electrical voltage, have the
bu lbs rep laced by a qualified technician.
H eadlights with Xenon l ight can be ident ified
by the high voltage sticker .
A WARNING
Contact with hig h-voltage components of
the electrica l system and improper re­
placement of gas discharge (Xenon) head­
light bulbs can cause serious personal in­
jury and death .
- Xenon bulbs are pressurized and can ex­ plode when be ing changed.
- Chang ing Xenon lamps requires the spe­
c ial train ing, instructions and equip­
ment.
- Only an authorized Aud i dea ler or other
qualified workshop should change the
bulbs in gas discharge lamps .
Fuses and bulb s 215
A WARNING
There are parts with sharp edges on the
openings and on the bulb holders that can
cause ser ious cuts.
- If you are uncertain about what to do,
have the work performed by an author­
ized Audi dealer or other qualified work­
shop. Ser ious personal i nju ry may result
from imprope rly perfo rmed wo rk.
(D Tips
- If you must replace the light bulbs your­
self, always remember that the eng ine
compartment of any vehicle is a hazard­
ous area to work in. A lways read and
heed a ll WARN INGS
°* page 164, Work­
ing in the engine comportment"*&. .
- It is best to ask your authorized Audi
dealer whenever yo u need to change a
bulb .
• -
•

216 Emergency situations
Emergency situations
General
This chapter is intended for trained emer­
gency crews and working personnel who
have the necessary tools and equ ipment to
perform these ope rations.
Starting by pushing or
towing
Q;) Note
Vehicle s with an automati c transmission
cannot be started by pushing or towing .
Starting with jumper
cables
If necessary, the engine can be started by
connecting it to the battery of another vehi­
cle.
If the engine should fail to start because of a
discha rged or wea k batte ry, the battery can be
connected to the battery o f
another vehicle,
using a
pair of jumper cables to start the en­
g ine .
Jumper cables
Use only jumper cab les of sufficiently
large cross section to safely carry the starter
cur rent. Refer to the manufacturer's specifica­
ti ons.
Use on ly jumper cables which have
insulated
termina l clamps and are properly marked for
d istinction :
plus(+) cable in most cases colo red red
minu s(-) cable
in most cases colo red black .
_& WARNING
Batterie s contain elec trici ty, a cid, and ga s.
Any of th ese c an cause ve ry seri ous or f ata l
inju ry . Follow the instructions below fo r
safe han dling of your ve hicle's battery.
- Alw ays s hield yo ur eyes and avoid lean ­
ing over the batte ry w henever possib le . -
A discharged battery can a lready freeze
at temperatures just be low 32 °F (0 °C).
Before connect ing a jumper cab le, the
frozen battery must be thawed com­
p letely, othe rwise it cou ld explode .
- Do not allow batte ry acid to contact eyes
or skin . Fl ush any contacted a rea wi th
water immediat ely .
- Imp roper use of a booster battery to
s tart a vehicle may cause an explosion.
- Vehicle batter ies generate explosive gas­
es . Keep sparks, flame and lighted ciga­
rettes away from ba tte ries .
- Do not try to jump start a ny ve hicle w ith
a low ac id leve l in the battery .
- The vo ltage of the booster batte ry m ust
a lso have a 12-Vo lt rat ing . The capacity
(A h) of the booster batte ry should not b e
lowe r than that of the discharged bat­
tery . U se o f batt erie s of d iffe ren t voltage
or subs tanti ally diffe ren t "Ah" rat ing
may c ause an exp losion and person al in­
ju ry .
- N ever ch arge a fr ozen bat te ry. Gas t rap ­
ped in the ice may ca use an ex plosion .
- N ever ch arge o r use a batt ery th at has
been fro zen. T he battery case may have
be weakened.
- Us e of batt erie s of di ffere nt vo lta ge or
substan tially differen t ca pa city (Ah) rat ­
i ng may cause an exp losion and injury.
T he capac ity (Ah) of the booster battery
should not be lower than that of the dis­
charged batte ry.
- Before you check anything in the engine
compartment, always read and heed a ll
W ARNI NGS
c::;,page 164, Working in the
engine compartment .
@ Note
-App lying a hig her voltage booster ba t­
tery will cause expens ive damage to se n­
sitive electronic components, such as
cont ro l units , relays, rad io, etc.
- There must be no electrical contact be­
twee n the vehicles as otherwise current
cou ld already start to flow as soo n as th e
posi tive (+) term inals are connect ed. ""

@ Tips
The discharged battery must be properly connected to the vehicle's electrical sys­
tem.
Use of jumper cables
Make sure to connect the jumper coble
clomps in exactly the order described below!
Fig. 163 Eng ine compartme nt: Co nnecto rs for jumper
cables and charger
F ig . 164 Jump start ing with the battery of another ve­
h icle: @discharged ve hicle batte ry, @ booste r battery
The procedure described below for connecting
jumper cables is intended to provide a jump
start for your veh icle.
Preparatory me asures
1. Do not jump start a frozen battery! Re­
place such a battery!
2 . Otherwise apply the hand brake and put
the selector leve r into P pos ition.
3. For both vehicles swi tch off all cons umers
and the ignit ion.
Conn ecting /disconnecting the jumper
cable .
4. Con nect one end of the red jumper cable
on the
jump st a rt bo lt @ ¢ fig. 164
Emergenc y situ ation s 21 7
(Bolts under red cover = "positive") o f the
vehicle to be started @.
5 . Connect the other end of the red jumper
cable to the positive terminal @ofthe
booster battery @.
6 . Connect one end of the black jumper ca­
ble to the negat ive terminal ® of the
booster battery @.
7. Co nnect the othe r end of the black jumper
c able to the negat ive termina l (bolt head)
@ in the external starting po int @ of
your vehicle.
8 . Route the jumper cables so that they can­
not catch in any rotat ing parts in the en ­
gine compartment.
Sta rting th e engine
9. Sta rt the eng ine of the vehicle providing
assistance and allow it to run at idle.
10. Now start the engine of the vehicle with
the discharged battery, wait for two to
three minutes until the engine "runs"
smooth ly.
11. If the eng ine does not start: Stop try ing
after 10 seconds and then try aga in after
about 30 seconds.
12 . In the vehicle that has received sta rt as­
s istance, tur n on the heate r blower and
the rear window hea ting to elim inate a ny
vo ltage peaks when disconnecting . Driv­
ing lights must be switched off!
13 . Disconnect the cable while the engine is
runn ing exactly in
reverse order to that
described in<=>
page 217, Connecting/dis­
connecting the jumper coble ..
When do­
ing so, make sure that the cable cannot
contact rotating eng ine parts.
14 . Close the cove r on the posit ive termina l.
T he battery is vented to the outside to p revent
gases from enter ing the veh icle inter ior. Make
s ur e that the jumper clamps a re well connec t­
ed with their
me tal parts in full contact with
the battery terminals.
A WARNING
To avoid serious personal injury and dam­
age to the vehicle, heed all warnings and

218 Emergency sit uat ions
instructions of the jumper cable
manufacturer. If in doubt, call for road
service.
- Jumper cables must be long enough so
that the vehicles do not touch.
- When connecting jumper cables, make
sure that they cannot get ca ught in any
moving parts in the eng ine compart­
ment.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
¢ page 164, Working in the
engine compartment.
@ Note
Improper hook-up of jumper cables can ru­
in the generator.
- Always connect POSITIVE(+) to POSI­ TIVE(+), and NEGATIVE( -) to NEGATIVE
( - ) ground post of the battery manager
control unit.
- Check that all screw plugs on the battery
cells are screwed in firmly . If not, tighten
plugs prior to connecting clamp on nega­
tive battery terminal.
- Please note that the procedure for con­ nect ing a jumper cable as desc ribed
above applies spec ifically to the case of
you r vehicle being j ump s tarted. When
you are giv ing a jump star t to anothe r ve­
hicle, do
not connect the negat ive (-) ca ­
ble to the negative(-) terminal on the
discharged battery ©- Instead, securely
connect the negative(-) cable to either a
solid metal component that is firmly
bo lted to the engine block or to the en­
gine block itself. If the battery that is be­
i ng charged does not vent to t he outside,
escaping batte ry gas cou ld ig nite and ex­
plode!
Emergency towing
with commercial tow
truck
General hints
Your Audi requires special handling for tow­
ing.
T he following information is to be used by
commercial tow truck operators who know
how to operate their equipment safely.
- Nev er tow your Audi , towing will cau se
damage to the engine and tr an smi ssion .
- Ne ver wrap th e safet y chain s or winch ca­
ble s ar ound the brak e lines.
- To prevent unne ces sary damage , your Audi
must be tran sp o rt ed with a car carrier
(flatbed truck ).
- To load th e vehi cle on t o the flat bed , u se
the t owing loop found in t he vehicle tools
and attach to the front o r rear ancho rage
¢page 219 and ¢page 220 .
A WARNING
-A vehicle being towed is not safe for pas-
sengers. Never allow anyone to ride in a
vehicle be ing towed, for any reason.
-

Lifting vehicle
lifting with workshop hoist and with
floor jack
The vehicle may only be lift ed at the lifting
poin ts illustra ted.
F ig. 1 72 Rear lift ing point (right side)
Fi g. 1 73 Front lift ing po int fright side)
• Rea d and heed W ARNI NG¢,&. .
• Locate lifting points ¢fig . 172 Qfig . 173 .
• Adjust lifting arms of workshop hoist or
floor jac k to match vehicle lifting points.
• Inse rt a r ubber pad between the floor jack/
workshop hoist a nd the lifting poi nts.
If you must lift your vehicle with a floor jack
to work underneath, be sure the vehicle is safely supported on stands intended for this
purpose.
Front lifting point
The lifting point is locate d on the f loor pan re­
inforcement about at the same level as the
jack mounting point¢
fig. 173. Do not lift
the vehicle at the vertical s ill reinforcement .
Rear lifting point
The lifting poi nt is locate d on t he vertical rein­
forcement of the lower sill for t he on boa rd
jack
Q fig. 172.
Emergency situations 221
lifting with vehicle jack
Refer to c::> page 2 09.
_&. WARNING
- To reduce t he risk of ser ious injury an d
ve hicl e damage.
- Alwa ys lift the vehicle only at t he spe­
c ial w orkshop hoist and floor jack lift
p oin ts ill ust rated ¢
fig. 172 and
¢fig. 173.
-Fa il ure to li ft th e ve hicle a t these
p o ints co uld cau se the ve hi cle t o til t or
f all from a lift if there i s a cha nge in ve­
h icl e weigh t distr ibuti on and b alan ce.
This mi ght h appen, fo r ex am ple, whe n
h eavy co mponent s such as the eng ine
b lock o r transmission are remove d.
- Wh en re m oving hea vy components li ke
these, anchor vehicle to hoist or ad d co r­
respo nding wei ghts to maintain t he ce n­
ter of gravity. Ot herwis e, th e ve hicle
might tilt or slip off the ho ist, caus ing
serio us pe rsonal in jury.
CI) Note
-Be aware of the following points before
lifting the vehicle:
- The vehicle should never be lifted or
jacked up from underneath the engine
oil pan, the transmission housing, the
front or rear axle or the body side
members. This could lead to seriou s
damage.
- To avoid damage to the underbody or
chassis frame, a rubber pad must be inserted between the floor jack and
the lift points.
- Before driving over a workshop hoist ,
check that the vehicle weight does not
exceed the permissible lifting capacity
of the hoist.
- Before driving over a workshop hoist ,
ensure that there is sufficient clear­
ance between the hoist and low parts
of the vehicle.
-