catalytic converter AUDI TT COUPE 2009 Owners Manual

Instruments and warning/indicator lights
& WARNING
• Always observe the warning in =;, page 209 , "Engine compart ­
ment" before opening the engine hood and checking the engine
coolant level.
• Never open the engine hood if you see or hear steam , or if you
see engine coolant dripping from the engine compartment . You
c ould burn your self. Let the engine cool off first so that you cannot
hear or see any steam or engine coolant .
0 Note
• Mounting additiona l lights or accessories in front of the a ir inlets
reduces the co oling effect of the radiat or. At high outside tempera ­
tures or h igh engi ne load , the eng ine could overheat.
• The fron t spoile r has been designed t o properly dist rib ute the
coo ling air when the veh icle is mov ing . If the spo iler is damaged,
this could red uce the coo ling effect and the engine cou ld then ove r­
heat. Ask your authorized Audi deale r for assistance. •
Fuel gauge
The fuel gauge wor ks only when the ignition is on .
When the needle reaches the red area, the warning light in the instrument cluster w ill illu m ina te =;,
page 35 . Thi s means yo u
have approx imate ly 1.9 gallons (7 litres) of fuel left in the tank.
Time
to refuel!
The tota l tank capacity of your vehicle is listed in=;, page 297. Be
awa re of the diffe rent ta nk capaci ties of front -wheel a nd q uat tro®
a ll- w hee l d ri ve models .
0 Note
Never run the tank comple tely dry! An irre gular suppl y of fuel can
cause engine m isf iring and fuel could enter into the exhaust system.
The catalytic converter could then overheat and be
damag ed. •
Speedometer with odometer
The speedometer shows y ou t he vehicle speed, and the
o dome ter sho ws you ho w ma ny m iles (kilo meters) yo u
hove dri ven.
Fig . 4 Speedomete r
close -up : odomet er
displ ay
T he od ometer an d trip odo mete r are locate d insid e th e spe edom­
eter .
• USA model s - Miles
• Canada mode ls - Kilometers
Lower odometer
The lower odometer shows the total number of miles (kilometers)
d riven.
Upper odometer (trip odometer )
The upper o dometer shows the tota l number o f mi les ( kilom eters)
driven since you last reset the odometer bac k to ze ro . You can use
thi s odomete r w hen you want to keep track of how ma ny m iles ( kilo­
meters) you have driven for a single trip or errand. The last digit indi ­
cates 1/10 of a m ile (10 0 meters). You ca n set th e tr ip od o meter back
to zero by pressing the reset button
=;, fig. 4 . ..,,

In order to connect the special diagnostic equipment, push the plug
into the Data Link Connector (DLC). The DLC is located to the right of
the hood release =>
page 24, fig. 10.
Your authorized Audi dealer or a qualified service station can inter ­
pret the code and perform the necessary repair. •
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIU in the instrument cluster
=>
page 15, fig. 5 is part of the On -Board Diagnostic (OBD II) system.
The warning/indicator light illuminates when the ignition is
switched on and goes out after the engine starts and the idle has
stabilized. This indicates that the MIL is working properly.
If the light does not go out after the engine is started, or illuminates
while you are driving, a malfunction may exist in the engine system.
If the light starts flashing, the catalytic converter could be damaged .
Continue driving
with reduced power (avoiding sustained high
speeds and/or rapid accelerations) and have the condition
corrected. Contact your authorized Audi dealer .
If the light illuminates, the electronic speed limiter may also be
malfunctioning . For more information=>
page 25, "Electronic speed
limiter".
An improperly closed fuel filler cap may also cause the MIL light to
illuminate =>
page 213. •
Electronic speed limiter
Your vehicle may be factory equipped with tires that are rated for a
maximum speed of 130 mph (210 km/h). This is less than the
maximum speed of your vehicle . To reduce the risk of sudden tire
failure and loss of control if the vehicle is operated at excessive
speeds, your vehicle also has an electronic speed limiter. The elec-
Controls and equip ­
ment
Driver information system
tronic speed limiter prevents your vehicle from going faster than the
tire speed rating. For more information =>
page 246.
If the engine control unit receives faulty vehicle road speed signals,
the Malfunction Indicator Light (MIU•"" will illuminate. If this
occurs, contact the nearest authorized Audi dealer for assistance.
& WARNING
Always observe the posted speed limits and adjust your speed to
suit prevailing road, traffic and weather conditions. Never drive
your vehicle faster than the maximum speed rating of the tires installed. •
Trip computer
Introduction
The trip computer gives you information on current and
average fuel mileage, average speed, fuel range and
driving time.
Fig . 11 Trip computer
1
You can switch between the trip computer 1 and 2 by pressing the
! Reset! button®=>
page 26, fig. 12. .,,_
I • •

New brake pads
Remember that new brake pads do not have a full braking
effec t during the first 250 miles (400 kilometres) after they
are installed.
New brake pads have to be "burnished in" before they have optima l
grab=> &.
During the break -in period, you should avoid putting severe loads
on the brakes. Severe loads include, for example, sudden hard
braking, in particular at very high speeds or, for example, on moun ­
tain passes.
& WARNING
U ntil the y develop the m axim um "b ite " fo r be st stoppi ng p owe r,
th e s urfaces on new br ake p ads re quir e some " brea king -in " during
th e ini tia l 100 to 150 miles 1 150 to 200 k ilom etres) of nor ma l c ity
driving . You can comp ensa te fo r thi s by press ing the brak e ped al
more fi rml y. T his appl ie s w henev e r ne w pad s a re in sta lled . •
Catalytic converter
It is very important that your emission control system
(catalytic converter) is fu nctioning properly to ensure that
y o ur vehicle is running in an environmentally s ound
manner.
- Always use lead-free gasoline~ page 211, "Fuel supply".
- Never run the tank down a ll the way to empty.
- Never put too much motor o il in your engine~
page 222,
"Adding engine oi l 'l=:;r\11
•
- Neve r try to push -or tow -s tart your ve hicle.
Controls and equip­
ment Safety first Vehicle operation
Dri
ving and environm ent
The catalytic converter is an efficient "clean-up" device built into the
exhaust system of the vehicle . The cataly tic converter burns many
of the pollutants in the exhaust gas before they are re leased into the
atmosphere.
The exclusive use of un leaded fuel is critica lly important for the l ife
of the catalytic converter and proper functioning of the engine.
& WARNING
• Do not park or oper ate th e ve hi cle in are a s whe re the hot
exha ust sys te m may c ome in conta ct wi th dr y grass, bru sh , fu el
s pill or other mat eri al which can cau se a fi re.
• Do not app ly a dditi onal u nder co at ing or ru stpr oofing on or
near the exhau st m anifold , exh au st pipe s, cata ly tic convert er or
he at shi elds. During dri ving, the s ubstance use d f or und ercoa ting
c ould ov erheat an d ca u se a fire.
0 Note
• Be aware that just one tank fi lling with
le ad ed fuel wi ll a lready
seriously degrade the performance of the catalytic converter.
• Do not exceed the correct engine oil level =>
page 222.
• Do not drive until the fuel tank becomes completely empty. The
engine could misfire . Unburned fuel could a lso get into the exhaust
system and this could cause the catalytic converter to overheat .
• Do not turn off the igni tion wh ile the vehicle is moving.
• Do not continue to operate your vehicle under these conditions,
as otherwise fue l can reach the cata lytic converter. This could resu lt
in overheating of the converter, requiring its replacement .
• To assure efficient operation of the Emiss ion Control System:
- Have your vehicle maintained properly and in accordance with
the service recommendations in your Warranty
& Maintenance
booklet.
Vehicle care Do-it-yourself service Technical data

___ D_ r_iv _ in_... g"'- a_ n_ d_ e_ n_ v_i_r _ o _n_ m __ e_n _ t _______________________________________________ _
The engine and catalytic converter have to reach their optimal oper­
ating temperature
to reduce fuel consumption and noxious emis ­
sions effectively.
• Just after starting, a cold engine in a mid -size car burns the fuel
at a poor rate of 6-8 miles per gallon (30-40 l/100kml. Half a mile
down the road, the mileage improves to 12 MPG (20 1/100 kml. It will
take the engine no less than
two and a half miles (4 km) of driving to
warm up to its proper operating temperature and operate at an
economic mileage. This explains why taking the car for short trips is
a rather wasteful convenience.
• The
outside temperature is also critical in this regard. Your car
consumes more fuel in the winter than in the summer.
Trailer towing
General information
Your Audi TT Coupe is not designed to tow a trailer.
Towing a trailer with your Audi TT Coupe is not recommended and
can cause damage to the car. Damaged caused by towing a trailer is
not covered by your Audi Warranty. •

Fue l supply and fillin g you r fu el tank 1111 ___________ ...:._:......:,_______;::;...a,__ __
•
Fuel supply and filling your fuel tank
Gasoline
Fuel supply
Using the right fuel helps keep the environment clean and
prevents engine damage.
Fuel r ecomm end ati on
The fuel recommended for your vehic le is unl eade d prem ium grade
gaso line . See also ~
page 291, "Data". Audi recommends using TOP
T IER Detergent Gasoline with a minimum octane rating of 91 AKI (95
RON). For more information on TOP TIER Detergent Gaso line, please
go to the official website (www.toptiergas .com).
The recommended gasoline octane rating for your engine can also be found on a label located on the inside of the fuel fille r flap. This
rating may be specified as AK I or RON .
Your vehic le may also be operated us ing unleaded regular gasoline
with a minimum octane rating of 87 AKl/91 RON . However, using 87
AKl/9 1 RON octane fuel will slightly reduce engine performance.
Use unle ad ed ga so line only . Unleaded gaso line is avai lable
throughout the USA, Canada, and in most European countries. We
recommend that you do not take your vehicle to areas or countr ies
where un leaded gasoline may not be available .
For more information on refueling your vehicle, see~
page 212 .
Octane ra tin g
Octane rating indicates a gaso line's ability to resist engine
damaging "knock" caused by premature ignition and detonation.
Therefore, buying the correct grade of gaso line is very important to
help prevent possible engine damage and a loss of engine perfor ­
mance. Gasoline most common
ly used in the United States and Canada has
the following octane ratings that can usua lly be found on the filler
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
= M otor Octane Number .
0 Note
• Do not use any fue l with 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 will
severe ly damage your vehicle's catalytic converter and its abi lity to
control exhaust emissions. •
Blended gasoline
Use of g aso line containing alco hol or M TB E ( meth yl
t er tiary butyl e ther )
You may use unleaded gasoline blended with alcohol or MTBE
(commonly referred to as oxygenates) if the blended mixture meets
the follow ing criteria:
Bl end of g asoline m eth anol (wood al coho l or methyl alc oh ol)
• Anti-knock index must be 87 AKI or higher .
• Blend must contain no more than 3% methanol.
• Blend must contain more than 2% co-solvents.
Vehicle care I t •

_______________________________________________ C _o_ n _ s_u _ m_ e_ r_l_n _f_o _ r_ m_ a_ t _i _o _ n __ _
Consumer Information
Warranty coverages
Yo ur A udi i s covere d by the f ollowi ng wa rrant ie s:
• New Vehicle Limited Warranty
• Limited Warranty Against Corrosion Perforation
• Emissions Control System Warranty
• Emissions Performance Warranty
• California Emissions Control Warranty (USA vehicles only)
• California Emissions Performance Warranty (USA vehicles only)
Detai led information regarding your warrant ies can be found in
your
Warr anty & M aintenan ce book let .•
Operating your vehicle outside the
U.S .A. or Canada
Government regulations in the United States and Canada require
t hat automobiles meet specific emission regulations and safety
standards . T herefore, vehicles built for the U.S .A . and Canada differ
from vehicles so ld in other countries .
If you plan to take your vehic le outside the continental limits of the
United States or Canada, there is the possibi lity that
• unleaded fue ls for vehicles w ith catalytic converter may not be
avai lable;
• fue l may have a considerably lower octane rat ing . Improper fuel
may cause engine damage;
• serv ice may be inadequate due to lack of proper service faci lities ,
tools or testing equipment;
• replacement parts may not be readily available .
Controls and equip­
ment Safety first Vehicle operation
•
Navigation systems for vehicles built for the U.S.A . and Canada
wil l not necessarily work in Europe, and may not work in other coun ­
tries outs ide o f North America.
0 Note
Audi cannot be responsible fo r mechanica l damage that could
resu lt from inadequate fuel, service or parts availability. •
Audi Service Repair Manuals and
literature
Audi Official Factory Service Manuals are published as soon as
poss ible after model introduction . Serv ice manuals are ava ilab le
from :
Audi Technical Literature Ordering Center
Call toll -free :
Te l.:
1 (800) 544-8021
(from 8:00 AM to 8 :00 PM, EST, Monday through Friday)
or access their website
www .audi .dd sltd .com on the Internet to
order repair manuals and other Aud i literature .•
Maintenance
Gen era l
Your vehicle has been designed to he lp keep maintenance require ­
ments to a minimum . However, a certain amount of regular mainte ­
nance is sti ll necessary to assure your veh ic le's safety, economy and .,
Vehicle care Do-it-yourself service Tec hn ica l da ta

______________________________________________ A_ l.:.. p _h_ a_ b_e _t_ic _ a _ l _in _ d_e _ x __ _
Automatic transmission ..... ... .. .... . 99
Driving Notes ... .. .... ... .... .... 102
Emergency program .. .... ... .... . 105
Emergency release . . . . . . . . . . . . . . . 106
Ignition key safety lock ....... .... .. 92
Kick-down .. ... .. .... .... ...... .. 105
Launch Control Program ........... 105
Selector lever lock .. ...... ...... .. 101
Selector lever positions ........... 100
Tiptronic ... .. .... .... ........... 103
Tiptronic controls on the steering wheel
104
Average fuel mileage ... .... .... .... .. 26
Average speed . ... .. .... .... .... .... . 26
Avoid damaging the vehicle ......... . 192
B
Battery . ...... ..... ... .... .... . 228, 231
Battery location inside the engine compartment ... .... .... .... 218,219
Charging . .... .... .... ... .... .... 232
Checking battery acid level .... 231, 232
Connecting ... ... ..... ... .... ... . 228
Disconnecting ....... ....... .... . 228
Important warnings when working on the
battery ..... .... ....... ...... .. 229
Replacing the battery . ....... .... . 228
Winter operation . .... .... ... .... . 228
Working on the battery ... .... .... . 229
Battery voltage ......... .... ......... 36
Before driving .. ...... .. ....... ..... 114
Bi -Xenon headlights ........... .. .... . 57
Blended gasoline ... .... .... ... .... . 211
Controls and equip­
ment Safety first
Body
cavity sealing .... .. ..... ... ... . 204
Booster seats .... .... .... .... .... ... 165
How do I properly install a booster seat in
my vehicle? . ... ... ....... .. .... 165
Safety instructions ..... .... ... .... 165
Brake fluid Changing the brake fluid .. .... .... 227
Checking the brake fluid level ...... 227
What is the correct brake f luid level? 227
What should I do if the brake fluid warning
light comes on? . ........ ... ..... 227
Brake fluid reservoir ..... .... .... .... 227
Brake system . ... ...... ......... .... 227
Anti-lock brake system ... .... ... .. . 20
Brake Assistan t .... . .. .. .. . ... ... 187
Brake fluid .... ... .... ...... ...... 227
Brake fluid specifications for refi ll and
replacement . ... ..... ... .... .... 227
Brake light defective . .... .... .... .. 37
Brake pads ... ... ..... ... .... ... . 191
General information . .... .. .. .. ... 186
How does the moisture or road salt affect
the brakes? ............... ...... 1 86
Malfunction .... ........... ...... . 33
Warning/indicator lights .. ..... .... . 19
Worn brake pads symbo l .... ...... . 36
Break -in period ........ ............. 190
Brake pads ...... ..... ....... .... 191
Tires .... . ... ... ... ... .... .... ... 190
Bulbs ..... .. .... ..... .. ... ... ...... 278 C
California Proposition 65 Warning . .... 218
Battery specific .... ... .... .... .... 231
Capacities ... .... .... .... ... .... .... 291
Car care ... ..... .. .. .... .... .... .. . . 198
Interior .... ... .. .. .... ........ ... 205
Plastic and vinyl .. ............... . 202
Weatherstrips ... .. .... .. . .... ... . 203
Care of exterior . ..... ....... ....... . 198
Cargo area
See Luggage compartment . ... .... . 121
Cargo net .. .... .. .. .... .... .... .... . 78
Catalytic converter .. .... .... .... ... . 191
CD changer .... ... .. .... .... .... .. .. . 84
Certification .. ....... ....... ..... ... 296
Changing a flat tire ......... .... ... .. 268
Changing engine oi l .. .... ... .... .. .. 223
Chassis Undercoating . ... .... .... .... ... . 205
See also Audi magnetic ride .... .... . 98
Checking Battery acid level .. ....... .... 231, 232
Engine coolant level ...... .... .... 225
Checking tire pressure ..... .... ...... 241
Child restraint Danger of using ch ild restraints in the
front seat ... .... .... .... ... ... . 137
Child restraints What types of child restraint anchors are
avai lable? ... .... .... .... ...... . 171
Where can I get additional information
about child restraints? ........... 171
Vehicle operation Vehicle care Do-it-yourself service Technical data

-Alphab eti ca l ind ex ----=------...:..:...::... ___________________________ _
Recommended oil check intervals .. 221
Specification and viscosity .. .. .. .. 219
Engine oil leve l .... .... ... ...... .... . 35
Engine oil pressure (malfunction) ... ... 35
Engine oil sensor defective ... .... .... . 35
Environment Break -in period . . . . . . . . . . . . . . . . . . 190
Catalytic converter . . . . . . . . . . . . . . . 191
Disposing of your vehicle battery . .. 228
Driving at high speeds ............ 192
Driving to minimize pollution and noise . 192
Fuel .... .... ... .. .... .... ...... . 213
Fuel economy . . . . . . . . . . . . . . . . . . . 192
Leakage from your vehicle . . . . . . . . . 217
Letting the vehicle stand and warm up . .
193
Proper disposal of drained brake fluid ... 227
Proper disposal of drained engine coolant ... .... .... .... .... .... . 225
Proper disposal of drained engine oil 222,223
Recycling used engine oil . .... .... 222
Un leaded fuel ... ... ..... .... .... 211
What should I do with an old battery? 228
EPC
See E lectronic power control . . . . . . . . 17
ESP
See Electronic Stability Program . ... 182
Event Data Recorder (EDR) . . . . . . . . . . . 182
Expansion tank .... .... .... .... ... .. 225
F
Fan .. ... .... .... ...... .... ... .. .... 87
Radiator . . . . . . . . . . . . . . . . . . . . . . . . 226
Fastening eyelets . .... .... .... .... ... 77
Flat t ire
Changing .... ....... .. ...... .... 268
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . 121
Fog lights, front ... .. ...... .... ... .. . 55
Fold ing master key with remote control . 38
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . 120
For the sake of the e nv ironment
Gasoline fumes and l the environment 213
Letting your engine warm up . .... .. 93
Reducing engine noise by early upshif ting ... ... ..... ... .... .... 12
Refue ling ... .. ...... ........ .... 213
Saving fuel by early upshifting .... .. 12
Front airbags Description . . . . . . . . . . . . . . . . . . . . . . 139
How they work . . . . . . . . . . . . . . . . . . . 144
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Ad ' .
Justing ...... .... ... .... .... .. 117
Adjusting the manual seats .. .... ... 71
Child restraints in the front seat .. .. 137
Fronta l collisions and the laws of physics .. .
126
Fuel Additives ...... ....... .... .... .. 211
Blended gasoline ........... .... .. 211
Current fuel mileage .. ... .... ..... . 26
Fi ller neck . .... ..... .. .... .... ... 212
Fuel gauge .............. .... ..... 14 Fuel supply too
low ..... .. . ... ... . . 35
Gaso line ... .... .... ... .... .... .. 211
Gasoline additives ................ 212
Octane rating .. .... .... .... .... .. 211
Recommendation .. ....... .... ... 211
Refue lling ... .. .... .... .... .... .. 213
Reserve ... ..... ... .... ... .... .... 14
Tank capacity ... .. .... .... .... ... 291
Un locking the fuel fi ller flap by hand 215
Fuel range ... ...... ... .. .... .... .... 26
Fuse arrangement ... .... ........ .... 275
G
Garage door opener . ...... ...... .... 107
Gas discharge lamps .... .. ... ... ... . 278
Gauges
Engine coolant temperature .... .. .. 13
Fuel gauge ............. ...... .... 14
Tachometer .... ....... ....... .... 12
Gear recommendation ........ ....... . 23
Gearshift indicator ... ...... ...... ... . 23
Gearshift lever
6 -speed manual transmission ... ... . 99
Generator Warning/indicator lights ........... . 18
G lossary of tire and loading terminology .. .
235
G love compartment ...... .... .... .... 8 4
Gross Vehicle Weight Rating (GVWR) ... 289