engine AUDI TT 2013 Owner´s Manual

you have the engine washed, the anti-corro­sion treatment is a lmost always removed as
wel l. It is therefore essential to have a long­
lasting corrosion protection reapplied to all
surfaces, seams, joints and components in the
engine compartment .
A WARNING
Be aware: The engine compartment of any
motor vehicle is a potentially hazardous
area.
- Before working in the engine compart­
ment, be sure to read the informat ion
c::.>page 174.
- Before reaching into the front plenum
pane l, always remove the ignition key.
O therw ise, the windshield wipe r system
cou ld unintentiona lly be switched on,
poss ibly causing personal injury from the
moving wiper linkage .
- Never reach into the area around or
touch the radiator fan. The auxiliary fan
is temperature controlled and can switch
on suddenly- even when the ign it ion is
off.
- Do not wash, wax or dry the engine w ith
the engine running. Moving or hot parts could injure you .
- Do not clean the underside of the chas­ sis, fenders, wheel covers, or other hard
to reach parts w ithout protecting your
hands and arms. You may cut yourse lf on
sharp-edged metal parts .
- Always read and heed all WARNINGS and
other information
c::.> page 164.
Cleaning and protec tion 17 5
•
•

176 Fuel supply and filling your fuel tank
Fuel supply and filling
your fuel tank
Gasoline
Fuel supply
Using the right fuel helps keep the environ­
ment clean and prevents engine damage .
Fuel recommendation
The fuel recommended for your vehicle is un­
lead ed premium
grade gasoline . See also
¢
page 240, Data . Audi recommends using
TOP TIER Detergent Gasoline with a minimum
octane rating of 91 AK I (95 RON). For more
information on TOP TI ER Detergent Gasoline,
p lease go to the officia l website (www.toptier­
gas.com).
The recommended gasoline octane rating for
your engine can also be found on a label locat­
ed on the inside of the fuel filler flap. This rat­
ing may be specified as AKI or RON.
Your veh icle may also be operated using un­
l eaded regular gasoline with a minimum oc­
tane rating of 87 AKI/91 RON. However, using
87 AKI/91 RON octane fuel wi ll slightly re ­
duce engine performance.
Use unleaded gasoline only. Unleaded gaso­
line is available throughout the USA, Canada ,
and in most European countries . We recom­
mend that you do not take your vehicle to
areas or countries where unleaded gasoline
may not be available.
F or more information on refueling your vehi­
cle, see¢
page 177.
Octane rating
Octane rating ind icates a gasoline's ability to
resist engine damaging "knock" caused by
premature ign ition and detonation. Therefore,
buying the correct grade of gasoline is very
important to help prevent possible engine
damage and a loss of engine performance.
Gasoline most commonly used in the United
States and Canada has the following octane r
atings that can usually be found on the fi ller
pump:
- Premium Grade: 91 -96 AKI
- Regular Grade: 87 -90 AKI
Explanation of the abbreviations:
AKI = Anti Knock Index= (R+M)/2 = (RON
+MON )/2
RON= Research Octane Number
MON = Motor Octane Number .
(D Note
-Do not use any fuel w ith octane ratings
lower than 87 AKI or 91 RON otherwise
expensive engine damage will occur.
- Do
not use leaded gasoline! The use of
leaded gasoline w ill severely damage
your vehicle's catalytic converter and its
ability to control exhaust emissions.
Blended gasoline
Use of gasoline containing alcohol or
MTBE (methyl tertiary butyl ether)
You may use unleaded gasoline blended with
alcohol or MTBE (commonly referred to as
oxygenates) if the blended mixture meets the
following criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
-Anti -knoc k index must be 87 A KI or higher.
- Blend must contain no more than 3% meth-
anol.
- 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 contain more than 10%
ethanol.
Blend of gasoline and MTBE
-Anti-knock index must be 87 AKI or higher. ll-

-Blend must contain not more than 15%
MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform
espec ially we ll for winter or summer driving.
During seasonal change-over, we suggest that
you fill up at busy gas stat ions where the sea­
sonal adjustment is more likely to be made in
time .
(D 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 fue ls that fail to meet the
specified criter ia in this chapter.
- If you are unable to determine whether
or not a particular fue l blend meets the
specifications, ask your service station or
its fuel supp lier.
- 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 fuel economy
or driveability and performance prob­ l ems 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 differ from one manufacturer 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 supply and filling your fuel tank 177
fuel systems clean, they are not equally effec ­
tive .
A udi recommends using TOP TIER Detergent
Gasoline. For more info rmation on TOP TIER
Detergent Gasoline, please go to the official
website (www.toptiergas.com).
After an extended period of using inadeq uate
fuels, built-up carbon deposits can rob yo ur
engine of peak performance.
Q) Note
Damage or malf unct ion due to poor fue l
quality is not covered by the Aud i 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 fille r flap.
If the unlocking system should fail, you can
still open the flap manually -for detailed in ­
structions see
¢ page 179.
You can find the fuel tank capacity of your ve­ hicle in
Technical Data ¢ page 240.
The label on the inside of the fuel fi ller flap
tells you the correct fue l for your vehicle. For
more information about fuel specifications,
see
¢ page 176.
Your vehicle fue l tank has an on -board refue l­
li ng 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 fo llow 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 f uel can be dangero us. Such con­
tainers, full or empty, may leak and could
cause a fire in a collision. If you must
•
•

1 78 Fuel supply and filling your fuel t ank
transport fue l 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
tainer meets industry standards (A NSI/
AS TM F852 -86) .
(D Note
Never drive your vehicle unti l the fuel tank
is completely d ry. The irreg ular s upply of
fuel can cause misfir ing. Gasoline cou ld
e nte r into the exhaust system and damage
t he cata lytic conve rter.
Refuelling
Fi g. 12 9 Drive r's doo r: Un lo cki ng fuel f ille r flap
Fi g. 130 Fu el cap hooke d on the opened fuel filler flap
When adding fue l, the ignition and any ce llu­
lar phones in the vehicle must be sw itched
off .
Tak ing the fuel cap off
• To open the fuel filler flap, pull the button
r:> fig. 129.
• Unscrew fuel filler cap counter-clockwise
and hang it o n the fuel filler flap ¢
fig. 130 .
Refuelling procedure
• Insert the f uel no zz le from the gasoline
pump into the fuel fi ller neck as far as it w ill
go .
• Select a med ium refuelling rate so that the
no zz le sw itches off automatically when the
tank i s full.
Putting the fuel cap back on
• After fi lling your tank, twist the fuel filler
cap clockw ise until you hear a definite click.
• Close the fue l filler flap.
T o avoid fuel s pill ing or evaporating from the
fuel tank always close fuel filler cap properly and completely . An improperly closed fuel fi ll­
er cap may also cause the MIL lamp¢
page 30
to come on.
A WARNING
Imp roper 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 .
- Fai lure to shut the engine off while refu­
eling and/or to insert the pump nozzle
fu lly into the fuel filter neck could cause
fuel to spray out of filler neck or to ove r­
f low. Fuel spray and overflowing fuel can
cause a fire.
- Never use a ce llu lar telephone whil e re­
fue ling . Th e e lec tromagnet ic radiat io n
can cause spa rks th at can igni te fuel v a­
pors an d cause a fire.
- N ever get back in to your vehicle whi le re­
fue ling.
If in excep tio nal cir cumstances
you must get back in your vehi cle while
ref ueling, make ce rtain that you close
the door and touch metal to discharge
static electricity be fore touching the fill­
er nozzle again . Static e lectr icity can
cause sparks that can ignite fuel vapors
re leased d uring refueling .
- Never smoke or have an open f lame any­
where in or near your ve hicle when refu­
eling or fi lling a portable fue l conta iner .

180 Checking and filling
Checking and filling
Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle.
Fi g. 132 Dr iver's side footwell: engine hood re lease
lever
.. Open the driver's door.
.. Pull the release lever on the left under the
instrument panel
c> fig. 132 in the direction
of the arrow .
The hood pops up slight ly under spring pres­
sure.
Opening the engine hood
Fig . 133 Re lease lever under the engine hood
Before opening the engine hood, make sure
that the windshie ld wipers are flat against the
windshie ld. Otherwise, they cou ld damage the
pa int on the hood.
.. Lift the hood s light ly
c> _& .
.. Pull up on the release under the hood
¢ fig. 133. This releases the catch.
.. Open the hood all the way.
A WARNING
-Hot engine coolant can burn you.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coo lant escaping from the eng ine
compartment. Wait unt il no steam or
coolant can be seen o r heard before care­
fu lly opening the hood.
Closing the engine hood
.. Pull the hood down until the pressure from
the struts is reduced .
.. Let the hood
drop down and latch in p lace.
Do not try to push it shut; it may fail to en­
gage
c> _& .
A WARNING
--
A hood that is not completely latched
could fly up and b lock your view while dr iv­
i ng.
- When you close the engine hood, check it
to make sure the safety catch has proper­
ly engaged . The hood should be flush
with the surrounding vehicle body parts.
- If you notice while dr iv ing that the hood
is not secured properly, stop at once and
close it.
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment!
Wheneve r you must pe rform any wo rk in the
eng ine compartment, for e xample chec king
and filling the different fluids, ther e is a risk
of injury, burns and a ccident s. To prevent
p ers onal injury al ways obs erv e the following
WARNINGS. The eng in e c ompartm ent of an y
vehicl e is a hazardou s area!
c> .&.
A WARNING
To he lp avoid injury, before yo u check any­
thing under the hood:
- Sw itch off the engine .
- Remove the ignition key.

-Apply the parking brake.
- Move selector lever of automatic trans-
mission to "P" (Park); put manual trans­
mission in Neutral.
- Always let the engine cool down . Hot
components will burn skin on contact.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment . Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood.
- Keep children away from the engine com­
partment .
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxili­
ary electric fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
ant system is pressurized and hot cool­ ant could spray out .
-Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir .
- Do not remove the engine cover under
any circumstances. This increases the
risk of burns.
- If work on the fuel system or the electri­
cal system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or
open flames. Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and personal in­
jury while the engine is running or being
started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
-If you must perform a check or repair
with the engine running:
Checking and filling 181
- First, fully apply the parking brake,
move selector lever of automatic trans­
mission to "P" (Park); put manual
transmission in Neutral.
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V -belts
or other moving parts, or from contact­ ing hot parts. Tie back hair before
starting, and wear no clothing that will hang or droop into the engine.
- Minimize exposure to emission and
chemical hazards~,& .
.8, WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm.
- 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 harms. Wash hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam­
age to vehicle systems w ill occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other veh icle flu­
id s, have your vehicle inspected by an au­
thorized Audi dealer . •
•

182 Checking and filling
Engine compartment
These are the most important items that you can check .
•
Fig. 134 Typ ica l layout for containers and eng ine oil filler cap
CD Coolant expansion tank (-L) .. .
'2' E . 'l d. . k \61 ngIne 0 1 1pst1c .......... .
@ Engine oil filler cap ('1:::r.) .. .. .
@ Brake fluid reservoir((();) .. .. .
® Jump start points(+) under a
cover, (-) bolt head .... ... .. .
® Windshield/headlight washer
t . (
;;p, ) con ainer ,-!,, •••.•••.•.•••.
187
185
185
189
233
194
The pos ition of the engine o il dipstick and the
engine o il fi lling hole
r::> fig. 134 (items @and
@) can differ depending on the engine de­
sign .
A WARNING
Before you check anything in the engine
compartment, always read and heed all
WARN INGS
c::> .& in Working in the engine
compartment on page 180.
Engine oil
Engine oil specifications
The engine oil used in your Audi needs the
right kind of oil.
T he eng ine in your Aud i is a soph ist icated
powerplant that was built to exact ing spec ifi­
cat ions . T his engine needs the right kind of
engine oil that meets specifications regard ing
quality and viscosity so that it can run
smooth ly and reliably . Choosing the right o il
and changing oil within the time and mileage
i ntervals printed in your vehicle's Warranty
&
Maintenance booklet matters a lot more to­
day tha n it did years ago. Audi has developed
a spec ia l quality standard for engine oil that
will help assure that you r vehicle's engine w ill
get the lubr ication it needs fo r proper opera­
t ion.
Modern engine l ubr ication has taken a q uan­
tum leap in the last few years. Many synthet ic
1J.

oils available today provide better engine lu­
brication that can outlast traditional petrole­
um-based oils, making them a smart choice
for use throughout the life of your Audi.
Whether you use synthetic or petroleum­based engine oil, the oil that you use must
conform to Audi's oil quality standard
VW 502 00 to help keep your vehicle's engine running smoothly and help prevent the for­
mation of harmful deposits, sometimes called
" sludge," that over t ime can lead to expensive
repairs .
At the time of printing, engine oils available in the U .S . and Canada that meet the exacting
specifications of Audi oil standard VW 502 00
are synthetic engine oils . This does not mean,
however, that every synthetic engine oil will
meet Audi oil standard VW 502 00 . So always
be sure that you use an approved oil.
To help prevent the formation of harmful de­ posits use only oil with the following specifi­
cations printed on the oil container :
Audi oil standard VW S02 00
Oil container labels may carry the specifica­
tion singly or in combination with other desig­
nations and oil quality standards .
Viscosity
Engine oils are graded according to their vis­
cosity . The proper viscosity grade oil for your
engine depends on climactic or seasonal con­
ditions where you drive. You can use oil with a
viscosity grade of SA E SW40 across all tem­
perature ranges for normal driving conditions.
However, if engine oil viscosity grade SAE
SW40 is not available, you can also use viscos­
ity grade SAE SW-30 or SAE OW-40 as long as
it meets Audi oil quali ty standard VW 502 00
specifications .
Because engine oil that meets the Audi oil
standard may not be available everywhere
when you need it, we strongly recommend
that you always carry with you an extra quart (liter) of oil that expressly conforms to the
Checking and filling 183
VW 502 00 specification, in case you have to
top
off the oil while on the road.
Only if the level of the oil is at or below the
minimum mark on the oil dipstick - and no oil
that expressly conforms to Audi oil standard
VW 502 00 specifications is available - may
you top
off with a high quality engine oil, pref­
erably synthetic-based, that meets ACEA A3
or API SM specifications, but even then, only
in viscosity grades SA E SW-40, SA E 5W -30, or
SAE OW-40. However, during the entire time
between oil change intervals, never top
off
with more than a total of 0.5 qt/liter engine
oil that does not conform to Audi oil specifica­
tion VW 502 00.
For more information about engine oil that
has been approved for your vehicle, please
contact either your autho rized Audi dealer or
Audi Customer Relations at 1 (800) 822-2834
or visit our web site at www.audiusa .com or
www.audicanada.ca . Here you will also find a
current list of oils (manufacturers, brand
names etc.) that conform to Audi oil standard
vw 502 00.
Changing the engine oil
The engine oil and oil filter must be changed
according to the mileage (kilometers) and
time intervals specified in your vehicle's War­
ranty
& Maintenance booklet. Do not exceed
these intervals -harmful deposits from old
engine oil can reduce engine performance and
can lead to expensive engine repairs.
Changing the oil at the recommended inter­
vals is so very important because the lubricat­
ing properties of oil decrease gradually during
normal vehicle use. If you are not sure when
you have your oil changed, ask your author ­
ized Audi Serv ice Adv isor.
Under some circumstances the engine oil
should even be changed more frequently. Change oil more often if you drive mostly
short distances, operate the vehicle in dusty
areas or mostly under stop-and-go traffic con­
ditions, or when you use your vehicle where
temperatures stay below freezing point for
long periods.
•
•

184 Checking and filling
Detergent additives in the o il will make fresh
oil look dark after the engine has been run­
n ing for a short time . This is norma l and is not
a reason to change the oil more often than recommended.
D am ag e o r m alfun ction s due to lack of
m ainten ance
It is essent ial that yo u change your oil at the
recommended intervals using only engine oil
that complies with Audi oi l standard
VW 502 00 . Your Lim ited New Vehicle War­
ranty does not cover damage or malfunctions
due to failure to follow recommended mainte­
nance and use requ irements as set forth in
the Audi Owner's Manual and Warranty
&
M aintenance book let . Your dea ler will have to
deny warranty coverage un less you p resen t to
the dea ler proof in the form of Servi ce or Re­
pa ir Orde rs that all schedu led maintenance
was performed in a timely manner.
Engine oil consumption
The engine in your vehicle depends on an ade­
quate amount of oil to lubricate and cool all
of its moving ports.
I n o rder to prov ide effective lubr ication and
cooling of internal engine components, a ll in­
ternal comb ustion engines consume a certain
amount of oil. Oi l consumption varies from
engine to engine and may change significantly
over the life of the eng ine . Typically, eng ines
with a specif ied break-in per iod (see
c::;, page 159) consume more oil during the
break-in per iod than they consume after oil
consumption has stabilized .
Under normal conditions, the rate of oil con­
sumpt io n depends on the quality and viscosity
of the oil, the RPM (revolutions per m inute) at
which the engine is operated, the ambient
temperature and road cond it io ns. Furthe r fac­
tors are the amo unt of o il d ilution from wate r
condensation or fuel residue and the ox ida­
tion level of the oi l. As any engine is subject to
wear as mileage bui lds up, the oil consump­
tion may increase over t ime until replacement
of worn components may become necessary. Wi
th a ll these variab les coming into p lay, no
standard rate of oil consumption can be es­
tab lished or spec ified. There is no alte rnative
to regular and frequent check ing of the o il lev­
el, see
Note .
If the yellow engine oil leve l warning symbo l
in the instr ument cluster
II lights up, you
sho uld check the oil leve l as soon as possib le
with the oil dipstick c::;, page 185. Top off the
o il at your earliest conven ience
c::;, page 185 .
A WARNING
-Before you chec k anything in the eng ine
compartment, a lways read and heed a ll
WAR NINGS
c::;, .& in Working in the engine
comportment on page 180.
CI) Note
D riving with an insufficient o il level is like­
l y to cause sever e damage to the engine.
(D Tips
- The oil pressure warn ing display. is
not an indicator of the oil level. Do not
re ly on it . Instead, check the oil level in
your engine at regular intervals, pr ef­
erably ea ch time you refu el, and alway s
before going on a long trip.
- If you have the impression yo ur engine
cons umes excessive amoun ts of oil, we
recommend that you consult your Aud i
dealer to have the cause of your concern
properly diagnosed. Keep in mind that
the accurate meas urement of o il con­
sumption requ ires great care and may
take some t ime . Your Audi dea ler has in­
struct ions about how to measure oil con­
sumption acc urately.

Checking the engine oil level
Fig . 135 Illust rat ion of principle 1: Ma rkers on o il dip ­
st ick
F ig . 13 6 Illust rat io n of principle 2: Markers o n oil dip·
st ic k
Before you check anything in the engi ne com­
partment,
always read and heed all WARN ­
INGS ¢ A in Working in the engine compart­
ment on page 180.
Determining oil level
• Park your vehicle on a leve l surface.
• While at operating state temperature,
briefly let the engine run at idle and then
shut it off.
• Wait approx . two minutes.
• Pull out the o il dipstick . Wipe off the oil
dipstick w ith a clean cloth, and slide it back
i n as far as it will go .
• Pull it back o ut and read off the oil level
¢ fig. 135 or ¢ fig. 136 . Top off the engine
oi l, if app licable ¢
page 185.
Oil level within range~
• Do not add o il.
Oil level with in range @
• You can add o il. Afterwards, the o il level
shou ld be w ith in range @.
Checking and filling 185
Oil level within range 0
• Yo u must add oil. Afterwards, the oil leve l
should be wi thin range @.
T he oil leve l needs to be checked at regu lar in­
terva ls. The best t imes to do th is are w henev­
er yo u ref uel and prior to long t rips.
Depend ing on the way the vehicle is dr iven
and the ope rat ing cond it ions, oi l consumption
can be up to 1/ 2 quart per 6 00 miles (0. 5 lite r
per 1,000 km) . Cons umption m ay be highe r
within the first 3,000 miles (5,000 km) .
Adding engine oil ci::,,.
0 N ;.
>< (D m
Fig. 137 Engine compa rtment: cover on the engi ne oil
filler neck
Before you check anyth ing in the engine com­
partment,
alw ays read and heed all WARN­
INGS ¢ A in Working in the engine compart­
ment on page 180 .
• Unsc rew the cap 'l::r. to the engine oi l filling
hole
¢ page 182, fig. 134.
• Carefully top off with the appropriate oil in
0.5 liter doses.
• Check the oil level aga in after two minutes
¢ page 185.
• Top off the oil aga in, if necessary .
• Scr ew the c ap back on the filling hole and
slide the oi l dipsti ck in as far as it w ill go.
A WARNING ,...__
-Wh ile topping off, the o il m ust not come
in contact with hot e ngine parts -fir e
hazard!
- The oi l filler cap must be pro perly se­
cured to prevent oil from being sprayed