engine AUDI TT ROADSTER 2014 Workshop Manual

off. These systems will be avai lable again as
soon as the energy ba lance has bee n restored.
You will also notice that engine idle speed has
been increased s lightly. This is normal and not
a cause for concern. By increasing engine idle
speed the additiona l energy required is gener­
ated and the battery is charged .
Driver notification in the instrument
cluster display
If battery power drops into the range where it
can lim it the ab ility of the engine to start, th is
i s shown in the inst rument cluster display
with the following driver message:
(•) Low battery charge : battery will be
charged while driving
This notification reminds you that the starting
capability of the engine may be l imited. As
soon as you start driving aga in, the battery
w ill be recharged and the notification will go
out.
Driver notification appears and goes out
again
If th is driver notification appears after the ig­
nition is turned on or while driving and it goes
out again after a wh ile, the battery has been
adequately recharged.
Driver notification appears and does not
go out again
If this driver notification appears after the ig­
n ition is turned on or while driving and does
not go out again, the battery's state of charge
is not in the optimal range. Starting ability is
restr icted. Have the battery checked as soon
as possible by an author ized Audi dealer or
qualified workshop.
Intelligent technology 149
•
•

150 Driving and environment
Driving and
environment
The first 1,000 miles
(1,500 km) and
afterwards
New engine
The engine needs to be run-in during the first
1,000 miles (1,500 km).
For the fir st 600 miles (1,000
kilometres ):
.,. Do not use full throttle .
... Do not d rive at engine speeds that are more
than 2/3 of the max imimum permitted
RPM.
.,. Avoid high engine s peeds.
From 600 to 1,000 miles (1 ,000 to
1,500 kilometres):
"" Speeds can gradually be increased to the
max imum pe rm iss ib le road or eng ine speed.
During and after break-in period
.,. Do not rev the engine up to high speeds
when it is cold. This app lies whether the
t ransm ission is in N (Neutral) or in gear.
After the break- in period
... Do not exceed max imum engine speed un­
der any circumstances .
.,. Upshift into the next hig her gear
before
reaching the red area at the end of the tach­
ometer scale
¢page 10.
During the first few hours of driving, the en­
g ine's interna l friction is higher than later
when all the moving pa rts have been broken
in. How w ell this break-in p rocess is done de­
pends to a conside rable ex ten t on the way t he
vehi cle is dr iven d uring the first 1,000 miles
(1, 500 kilome tres) .
(D Note
Extremely high engi ne speeds a re auto­
mat ic all y reduced. However, t hese RPM-
'
limi ts were programme d for an eng ine
well run-in, not a new eng ine.
~ For the sake of the env ironment
Do no t drive with unnecessar ily high en­
gine speeds -upshifting early saves f uel,
r educes no ise an d protects the environ ­
ment.
New tires
If your vehicle is runni ng on new tires, drive
part icularly careful for the first 350 miles
(500 k ilometres) after fitting .
A WARNING
-New tires tend to be s lippery and mus t al-
so be "b roken-in". Be s ure to re m embe r
this dur ing t he fir st 35 0 m iles (500 kilo ­
me tres) . Brake gent ly . Avo id following
closely be hind ot her vehicles or other sit­
uations that m ight require sudde n, hard
b raking.
New brake pads
Remember that new brake pads do not have a
full brak ing effect during the first 250 m iles
(400 ki lometres) after they are installed .
New brake pads have to be "burnished in" be­
fore they have optima l grab¢ &.
D uring the break-in pe riod, yo u should avoid
putting seve re loads on the brakes . Severe
l oads include, for example, su dden hard brak­
ing, in particular at very high speeds or, for
example, o n mountai n passes .
A WARNING ~
Until they develo p the maximum "bite" fo r
b est stopp ing power, the surfaces on new
b rake pads requ ire some "brea king-in" du r­
in g the initia l 10 0 to 15 0 mi les (150 to
200 kilome tres) of norm al cit y dr iv ing. Yo u
can compensate for this by pressing the
br ake pe da l mo re f irm ly . This applies
whenever new pa ds are installed.

Avoid damaging the
vehicle
When you are driving on poor roads, or over
curbs, steep ramps, etc., make certain that
low-lying parts such as spoilers and exhaust
system parts do not bottom out and get dam­
aged.
T his is especially true for vehicles with low­
slung chassis (sports chassis) and fully loaded
vehicles .
Driving through water
on roads
Note the following to avoid vehicle damage
when driving through water, for example on
flooded roads:
- T he water must not be any higher than the
bottom of the veh icle body.
- Do not d rive faster than wa lking speed.
..&, WARNING
After driving through wate r, m ud, slush,
etc., the brakes may be slow to take effect
because of wet brake rotors and pads . Dry
the brakes first by braking carefully to re­
store the full braking effect.
(D Note
Vehicle components such as the engine,
transmiss ion, suspension or electrical sys ­
tem can be severely damaged by driving
through water.
- Check the depth of the water before driv ­
ing through it.
- Do not s top the veh icle, drive in reverse
or switch the engine off when driving
through water.
- Keep in mind that oncoming vehicles may create waves that raise the water
level and make it too deep for your vehi­
cle to drive through safely.
- Avoid driving thro ugh sa lt water because
it can cause corrosion.
-
Dri vin g and en vironm ent 151
Catalytic converter
It is very important that your emission con­
trol system (catalytic converter) is function­
ing properly to ensure that your vehicle is run­
ning in an environmentally sound manner .
.,. Always use lead-free gasoline¢ page 161 ,
Fuel supply.
.,. Never run the tank down all the way to emp­
ty.
.,. Never put too much motor o il in your engine
c:::> page 170, Adding engine oil 9::71 .
.,. Never try to push- or tow-sta rt you r vehicle.
The catalytic converter is an efficient "clean­
up" dev ice built into the exhaust system of
the vehicle. The cata lytic conve rter bu rns
many of the pollutants in the exha ust gas be­
f ore they are re leased into the atmosphere .
T he exclusive use of unleaded fuel is critically
important for the life of the catalyt ic convert­
er and prope r fu nct ion ing of the engine .
A WARNING
-
- Do not park or operate the vehicle in
areas where the hot exha ust system may
come in contact with dry grass, brush,
fue l spill or other materia l wh ich can
cause a fire .
- Do not apply additional undercoating or
rustproof ing on or near the exhaust
manifold, exhaust pipes, catalytic con­
verter or heat shields. Dur ing driving, the
substance used for undercoating could
overheat and cause a fire .
(I) Note
-Be aware that just one tank filling with
leaded fuel w ill already ser iously de­
grade the performance of the catalytic
converte r.
- Do not exceed the correct eng ine oil level
c:::> page 170.
- Do not drive until the fue l tank becomes
completely empty . The engine could m is-
fire. Unburned fuel could also get into
IJ,,
•
•

152 Driving and en vironm ent
the exhaust system and this could cause
the catalytic converter to overheat.
- Do not turn off the ignition while the ve­ hicle is moving .
- Do not continue to operate yo ur vehicle
under these conditions, as otherw ise fuel
can reach the cata lytic converter . This
could result in overheating of the con­
verter, requ iring its replacement.
- To assure efficient operation of the Emis­
sion Control System:
- Have your veh icle ma intained properly
and in acco rdance with the service rec­
ommendations in your Wa rranty
&
Ma intenance booklet.
- La ck of proper main tenance as well as
improper use of the vehicle will impa ir
t he funct ion of the emission control
system and cou ld lead to damage.
@ For the sake of the environment
E ven when the Emission Contro l System is
operating p roperly, the exhaust gas can
have a s ulfur -like exhaust gas smell under
some operating states. This depends on
the s ulfur content o f the fue l being used.
Using a different brand of fuel may help,
or filling the tank w it h lead-free super
grade gasoline.
Shutting down vehicle
If you wou ld like your veh icle to remain inop­
erat ive for a longer period of time, contact an
Aud i or other specialized dealer . T hey ca n ad­
vise you on necessary precautions e.g . corro­
sion prevent ion, ma intenance and storage.
Pay atten tion to add it iona l information con­
cerning the batte ry . Re fer to ~
page 175.
Operate your vehicle
economically and
minimize pollution
General
Your personal style of driving will determine
the economy of your vehicle, as well as ex­
haust and noise levels .
Fuel economy, environmenta l impact, and
wear on your engine, brakes and tires largely
depend on three factors:
- your personal driving style
- oper ating conditions
- technical limitat ions
If you ant ic ipate what you need to do next and
drive economically, you can easily cut your
fuel consumpt ion by 1O-lS percent . This sec­
t ion w ill give you some tips on how you can
help the env ironment and your pocketbook.
@ Tips
The consumption estimates as published
by ENVIRONME NTAL PROTEC TION AG ENCY
( EP A) and Transpo rt Canada may no t corre­
spond to your actual consumption on the
r oad, which will va ry depending upon vehi ­
cle load and speed, road and weather con ­
ditions, trip length, etc.
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they ore ac­
celerating.
Avoid unnecessary acce lerating and braking .
Vehicles use the mos t fu el when they are ac­
ce le rat ing. If yo u ant icipate what is going to
happen next, you will need to brake less and,
t hu s, acce le rate less . Let the vehicle coast
whenever possible -for examp le when you see
that the next traff ic light is red.

Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
""Try and keep well below your car's maximum
speed.
Accelerating gently reduces fuel consump­
tion, engine wear, and does not disturb the
environment.
Fu el consumption, exhaust emissions and en ­
g ine noise increase disproportionately at high
speeds. If you drive at approximately three
quarters of top speed, fuel consumption will
be reduced by one half. Never drive faster
than the posted speed limit and weather con­
ditions permit .
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel.
""Shut the engine off when you are not driving
the vehicle.
""Do not warm up the vehicle by letting the
engine run at idle .
It makes sense to shut
off the engine in traff ic
jams, when waiting for trains to pass at ra il­
road crossings, or at traffic lights that have
l ong wa its on red. Turning the engine
off for
just
30-40 seconds saves more fue l than is
burned starting the engine again .
It takes a long time for the engine to warm up
fully when it is running at idle. However, wear
and noxious emissions are especially high
when the engine is warming up. So you should
drive away as soon as you start the engine and
avoid running at high RPMs whi le the engine
is sti ll warming up .
(D Note
Do not leave engine idling unattended af­
ter starting . If warning lights should come
on to indicate improper operation, they
would go unheeded. Extended idling also
produces heat, which could result in over-
Driving and environment 153
'
heating or othe r damage to the vehicle or
other property.
Regular maintenance
A badly tuned engine unnecessarily wastes a
lot of fuel.
""H ave your veh icle serviced at regular inter-
vals.
By having your vehicle regu larly serviced by an
Audi dealer helps to ensu re that it runs prop­
erly and economically. The condition of your
vehicle not only affects its safety and ability to
hold its value, it also affects
fuel consump­
tion.
Check your oil each time you fill your tank.
The amount of o il used is related to engine
load and speed.
It is normal for the oil consumption of a new
engine to reach its lowest value after a certain
mileage has been driven.
You must drive your vehicle about 3,000 miles
(5,000 kilometres) before you can properly
assess oil consumpt ion.
This also app lies to fue l consumption and en­
gine output.
(U) Note
- Have your vehicle maintained properly
and in accordance with the service rec­
ommendations in your Warranty
& Main­
tenance booklet. Lack of proper mainte­
nance as well as improper use of the ve­
hicle will impair the function of the
emission control system and could lead
to damage.
- Do not alter or remove any component of
the Emission Control System unless ap­
proved by the manufacturer.
- Do not alter or remove any device, such
as heat shields, switches, ignition wires,
valves, which are designed to protect
your vehicle's Emission Control System
and other important vehicle compo­
nents .
•
•

154 Driving and environment
Fewer short trips
Fuel consumption will always be relatively
high on short trips .
.,. Try to avo id driving short distances with a
cold eng ine.
The engine and catalyt ic converte r have to
reac h their optimal
operating temperature to
reduce fuel consumption and noxious emis­
sions effect ively .
- Just after starting, a co ld engine in a m id­
s iz e car burns the fuel at a poor rate of 6-8
miles per gallon (30-40 l/l00km). Half a
mile dow n the road, the m ileage imp roves
to 12 M PG (20 l/100 km) . It will take t he
engi ne no less than
two and a half mil es
(4 km) of driving to warm up to its prope r
oper ating tempe ra tur e and ope rate at an
e conomi c mileage. This explains w hy taking
t h e car for s hort tr ips is a rat her wastef ul
co nvenience.
- T he
outside temperature is also cr itica l in
t h is regard. Yo ur car consumes more fuel in
t h e winter than in t he summer .
Trailer towing
General information
Your Audi TT Roadster is not designed to tow
a trailer .
Towing a tra iler with yo ur Audi n Roadster is
n ot recommended and can ca use damage to
the car . Damaged caused by towing a t railer is
n ot cove red by your Aud i Warran ty .

Fuel supply and filling
your f uel tank
Gasoline
Fuel supply
Using the right fuel helps keep the environ­
ment clean and prevents engine damage.
Fuel recommendation
The fuel recommended for you r vehicle is un­
leaded premium
g rade gasolin e. A udi recom­
mends us ing TO P TI ER D etergent Gaso line
w ith a m inim um octane ra ting of 91 A KI ( 95
RON ). Fo r more inform ation on TOP TIER De­
tergent Gasoline, please go to the off ic ial
website (www.toptie rgas .com) .
The re commended gasoline octane rating for
your en gine can also be fo und o n a label loca t­
ed on t he ins ide of the fuel filler flap . This ra t­
ing may be specif ied as AKI or RO N.
Your veh icle may al so be operated using un­
l e aded regular g asoline w ith a min imum o c­
tane rating of 87 AK I/91 RO N. However, using
87 AK I/91 RON octa ne fue l w ill sli ghtly re­
d uce eng ine perfo rmance .
Use unleaded ga solin e only. Unleaded g aso­
line is available th rougho ut the USA, Ca nada,
and i n most E uropean countries . We recom­
mend that you do not ta ke yo ur vehicle to
areas or co untries where unleaded gasoline
may not be ava ilable.
F or mo re informat ion on refue ling your ve hi­
cle, see
~ page 162.
Octane rating
Octane rati ng in dicates a gaso line's abili ty to
r es is t engi ne da mag in g "knoc k" ca use d b y
p remature ign ition and detona tion. Therefore,
b uying the correct grade of gaso line is very
i mportant to he lp prevent possible engine
damage and a loss o f engine performance.
Gasoline mos t common ly used in the Unite d
States an d Canada has the following octane
ratings that ca n usua lly be fo und on the filler
pump:
Fuel supply and filling your fuel tank 161
- Premium Grade: 9 1 -96 AKI
- Regular Grade: 87 -90 AKI
Explanation of the abb reviations :
AKI = Anti Knock Index = (R+ M)/2 = (RO N
+M ON)/2
RON = Research Octane Num ber
M ON = M otor Octane Number.
@ Note
- Do not use a ny fue l w it h octane rat ings
lower than 87 A KI or 9 1 RO N oth erwise
ex pensive engi ne da mage w ill occu r.
- Do
not use leaded gasoli ne! The use of
leade d gasoline w ill severely damage
yo ur vehicle's cata ly tic co nve rter and i ts
a bili ty to con trol exh aust emi ssion s.
Blended gasoline
Use of gasoline containing alcohol or
MTBE (methyl tertiary butyl ether )
You may use unleaded gasoline blende d with
alcohol or MTBE (commonly referred to as
oxygenates) if the blended m ixture meets the
fo llow ing criter ia:
Blend of gasoline methanol (wood alcohol or
methyl alcohol )
-Anti -kno ck index mus t be 87 A KI or higher.
- Blend mus t contain no more t han 3% me th-
a nol.
- Blend must contain more than 2% co-sol-
vents.
Blend of gasoline and ethanol (grain alcohol
or ethyl alcohol)
- Anti-knock index must be 87 AKI or higher.
- Blend must not conta in more than 10%
ethanol.
Blend of gasoline and MTBE
- Anti -kno ck index mus t be 87 A KI or higher.
- Blend must contain no t mo re tha n 15%
MTB E.
Seasonally adjusted gasoline
•
•

162 Fuel supply and filling your fuel tank
Many gasoline grades are blended to perform
especially well for winter or summer driving.
During seasonal change-over, we suggest that
you fill up at busy gas stations where the sea­ sonal adjustment is more likely to be made in
time.
@ Note
- Methanol fuels which do not meet these
requirements may cause corrosion and
damage to plastic and rubber compo ­
nents in the fuel system.
- Do not use fuels that fail to meet the
specified criteria in this chapter .
- If you are unable to determine whether
or not a particular fuel blend meets the
specifications, ask your service station or i ts fuel supplier .
- Do not use fuel for which the contents
cannot be identified .
- Fuel system damage and performance
problems resulting from the use of fuels
different from those specified are not
the responsibility of Audi and are not
covered under the New Vehicle or the
Emission Control System Warranties.
- If you experience a loss of fue l economy
or driveability and performance prob­
lems due to the use of one of these fuel
blends, we recommend that you switch
to unblended fuel.
Gasoline additives
A major concern among many auto manufac­
turers is carbon deposit build-up caused by
the type of gasoline you use .
Although gasoline grades diffe r from one
manufac turer to another, they have certain
things in common. All gasoline grades contain
substances that can cause deposits to collect
on vital engine parts, such as fuel injectors
and intake valves. Although most gasoline
brands include additives to keep engine and
fuel systems clean, they are not equally effec­
tive. Audi recommends
using TOP TIER Detergent
Gasoline . For more information on TOP TIER
Detergent Gasoline, please go to the official
website (www.toptiergas .com) .
After an extended period of using inadequate
fuels, built-up carbon deposits can rob your engine of peak performance.
(D Note
Damage or malfunction due to poor fuel
quality is not covered by the Audi New Ve­
hicle Limited Warranty.
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear
side panel behind the fuel filler flap.
If the unlocking system should fail, you can
still open the flap manually -for detailed in­
structions see
~ page 164.
You can find the fuel tank capacity of your ve­
hicle in~
page 224 .
The label on the inside of the fuel filler flap
tells you the correct fuel for your vehicle. For
more information about fuel specifications,
see
~ page 161 .
Your vehicle fuel tank has an on-board refuel­
ling vapor recovery system. This feature helps
to prevent fuel vapors from escaping from the
tank and polluting the environment while you refuel your vehicle. In order to fill the tank
properly while protecting the environment,
please follow this refueling procedure careful­
ly.
.&_ WARNING ~
Under normal operating conditions, never
carry additional fuel containers in your car.
Gas canisters and other containers used to
transport fuel can be dangerous. Such con­
tainers, full or empty, may leak and could
cause a fire in a collision . If you must
transport fuel to use for your lawn mower, ..,.

snow blower, etc., be very careful and al­
ways observe local and state laws regard­
ing the use, transportat ion and storage of
such fuel containers. Make certain the con­ t ainer meets industry standards (ANSI/
AS TM F8S2 -86).
(D Note
Never drive your vehicle unti l the fuel tank
is completely dry. The irregular supply of
fue l can cause misfir ing. Gasoline cou ld
enter into the exhaust system and damage
the cata lytic conve rter.
Refuelling
F ig. 125 D river's door: Un locki ng fuel filler flap
Fig. 1 26 Fuel cap hooked o n the opened fuel fi ller flap
When adding fuel, the ignition and any cellu­
lar phones in the vehicle must be switched
off.
Taking the fuel cap off
.,. To open the fuel filler flap, pull the button
¢fig. 125.
.,. Unscrew fuel filler cap counter-clockwise
and hang it on the fuel filler flap ¢
fig. 126.
Fuel supply and filling your fuel t ank 163
Refuelling procedure
.,. Insert the fuel nozzle from the g asoline
pump into the fuel fi ller neck as far as it wi ll
go .
.,. Select a med ium refuelling rate so that the
nozz le switches off automatically when the
tank is full.
Putting the fuel cap bac k on
.,. After fi lling your tank, twist the fuel filler
cap clockwise until you hear a definite click.
.,. Close the fue l filler flap.
T o avoid fuel spill ing or evaporating from the
fuel tank always close fuel filler cap proper ly
and completely. An improperly closed fuel fill­
er cap may also cause the MIL lamp¢
page 30
to come on.
A WARNING
Improper refue ling or handling of fuel can
cause fire, explosion and severe burns.
- Fue l is highly flammable and can cause
severe burns and other injur ies.
- Failure to shut the engine off while refu­
eling and/or to insert the pump nozzle
fully into the fuel filler neck could cause
fue l to spray o ut of filler neck or to over­
flow. Fue l spray and overflowing fuel can
cause a fire.
- Never use a ce llu lar telephone while re­
fue ling. The electromagnet ic rad iat ion
can cause sp arks that can ignite fuel va­
pors and cause a fire.
- Never get back into yo ur vehicle while re­
fue ling.
If in excep tional circumstances
you must get back in your vehicle while ref ueling, make certain that you close
the door and touch metal to discharge
static electricity before touching the fill­
er nozzle again. Static electr icity can
cause sparks that can ignite fuel vapors
released during refue ling.
- Never smoke or have an open flame any­
where in or near your veh icle when refu­
eling or filling a portab le fuel conta iner.
- For your safety, we strongly recommend
that you do not t ravel with a portable

164 Fuel suppl y and filli ng your fuel t ank
fuel container in your vehicle . The con­
tainer, full or empty may leak and could
cause a fire, especially in a crash.
- If, under exceptional circumstances, you
must transport a portable fuel container,
please observe the following:
- Never fill a po rtable fuel conta iner
while it is anywhere in or on the vehicle
(for example, in the luggage compart­
ment, or on the tr unk). Static electrici­
ty can bui ld up while filling and can ig­
n ite fuel vapors causing a fire .
- Always place a po rtable fuel container
on the ground before filling.
- Always keep the f iller nozzle complete­
l y inside the portable container before
and d uring fi lling.
- If filling a portable container made of
metal, the filler nozz le must always be
in contact with the container. Th is w ill
he lp prevent static electricity from dis­
charging and cause a fi re .
- Never sp ill fuel inside the vehicle or
luggage compartment. Fuel vapors are
h ighly flammable.
- Always observe local and state/provi n­
cial laws regarding the use, storage
and transporta tion of fuel conta iners.
- Make certain the fuel container meets
industry standards (ANSI/ ASTM
F8S2 -86) .
d) Note
If any fuel has spilled onto the car, it
should be removed immediate ly to prevent
damage to the paint .
@ For the sake of the environment
As soon as the correctly operated nozzle
switches off automatically for the first
time, the tank is full. Do not try to add more fue l because fuel may spill out. In
add it ion, the expans ion space in the fuel
tank will be fi lled -causing the fue l to
overflow whe n it becomes warm and pol­
lute the env ironment.
(D Tips
- Running your engine whi le refue lling
may cause vapors to escape or even fuel
to spill out of the tank. This would then
shut off the fuel nozz le before the tank
is full.
- Do not refuel your vehicle with the igni­
tion switched on. The fuel gauge may otherwise not ind icate the correct fue l
level after ref uelling .
Unlocking the fuel filler flap
by hand
You can open the fuel filler flap by hand if the
power locking system should fail.
F ig . 12 7 Luggage compartment: Cover in the rig ht­
side interio r trim
If the power locking system should fail, you
can still ope n the flap ma nually:
.. Open the rear lid .
.. Open the round cover in the right-side interi­
or trim.
.. Remove the red plastic knob from its retain­
er .
.. Pull the p lastic cord in the d irect ion of the
arrow to unlock the fuel fi ller flap
qfig. 127.