2010 AUDI A5 COUPE catalytic converter

Driver information display
Service due
When the due date for service is reached, the message Service due
! appears in the instrument cluster immediately after you turn on
the ignition. Additionally, a warning tone sounds. After about 5
seconds the display switches back to normal.
Calling up the service schedules
If or when an oil change or inspection is due , can be shown in the
radio or MMI* display by selecting the service interval display in the
car menu. Select
[CAR]> Service interval display=> page 21, fig. 15.
Resetting the service interval display
Your authorized Audi dealer will reset the corresponding service
schedule after performing the appropriate service on your vehicle.
You also have the possibility to reset the oil change schedule after
having performed an oil change according to Audi specifications .
Select
(CAR]> Service interval display> Re set oil change interval.
0 Note
If you disconnect the battery terminals, no calculations can be
made for the service interva l display during this time and no service
reminder will appear. Remember that observing the proper service
interva ls is vita lly important to extending the life of your vehicle,
particularly the engine, and maintaining its value. Even if the
mileage driven is low, the maximum period of one year from one
service to the next must not be exceeded.
[ i ) Tips
• Do not reset the display between oil changes, o therwise the
display will be incorrect .
• The information in the Service Reminder remains stored
even
when the vehicle battery is disconnected. •
On-Board Diagnostic system (08D)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIU in the instrument cluster
=> page 12, fig. 7 is part of the On-Board Diagnostic (OBD II) system.
The warning/ind icator light illuminates when the ignition is
switched on and goes out after the engine starts and the id le has
stabi lized. This indicates that the MIL is working proper ly .
If the light does not go out after the engine is started, or illuminates
while you are driving, a ma lfunction may exist in the engine system.
If the light illuminates, 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 23, "Electronic speed
limiter".
An improperly closed fuel filler cap may also cause the MIL light to
illuminate
=> page 267. •
On-Board Diagnostics
Fig. 17 location of
Data Link Connector
(DLC)
ai,,,

• ..__T_ r_a _n_ s_ m_ is_ s_i o _ n ______________________________________________________ _
Before you move the selector lever to R, press both the button in the
handle of the selector lever
and the brake pedal at the same time .
When the ignition is on , the backup lights illumina te when the
selector lever is moved into R.
N -N eutr al
The transmission is in neutral in this position. Shift to this position
for standing with the brakes applied=:>
page 150.
When the vehicle is stationary or at speeds below 3 mph (5 km/h) ,
you must always apply the footbrake before and while moving the lever out of
N .
D -N or mal pos itio n fo r d rivi ng forward
Posi tion Dis for normal city and highway driving . It ranges from zero
to top speed and all gears shift automatically, depending on engine load , driv ing spe ed and automa tically selected shift programs .
When the vehicle is s tationary or at speeds below 3 mph (5 km/h).
you must always apply the foot brake befo re and while moving the
lever to
D ou t of N.
In certain circumstances it may be advantageous to temporarily
switch to the manual shift program to manually select gear ratios to
match specific driving conditions=:>
page 152.
S -Sp o rt posit io n*
Select this pos ition for sportier performance. In this position, the
transmission will not upshift as soon , allowing the vehicle to use the
increased power available at higher engine speeds to achieve live­
lier acceleration.
When the vehicle is stationary or at speeds below 3 mph (5 km/h) ,
you must always apply the foot brake befo re and while moving the
lever to
S out of N.
& WARNING
R ea d and foll ow all WARNIN GS =:> & in "Dri vin g th e a utom atic
tr an smi ssion " on
pag e 148.
0 Note
Coasting downhill with the transmission in N and the engine not
running will result in damage to the automa tic transmission and
possibly the catalytic converter. •
Applies t o ve hicl es: wit h automa tic trans mis si on
Automatic Shift Lock (ASL )
The Automatic Shift Lock safeguards you against acciden ­
tally shifting into a forward or the reverse gear and
causing the vehicle to move unintentionally.
F ig . 16 1 Shift gate:
se lector le ver loc k
posit ions a nd int erl ock
butt on hi gh ligh ted
The selector lever l ock is released as follows :
Turn the ignit ion on .
Step on the brake peda l.
At the same time press and hold
the interlock button on the s ide of the gear selector knob
=> fig. 161 w ith your thumb until you have moved the
selector lever to t he desired position.
~

___ D_ r_ iv_ i_ n-' g"'""'- a_ n_d_ e_ n _ v_i_r _ o _n_ m_ e_ n_t _____________________________________________ _
New brake pads
Remember that new brake pads do not have a full braking
effect during the first 250 miles (400 kilometers) after they
are installed .
New brake pads have to be "burnished in" before they have optimal
grab =>& .
During the break -in period, you shou ld avoid putting severe loads
on the brakes . Severe loads include, for examp le, sudden hard
braking, in particular at very high speeds or, for example, on moun ­
tain passes .
& WARNING
New brake pad s don' t have the b est sto ppin g powe r and mu st b e
" brok en-in " during the initi al 100 to 15 0 mile s (150 t o 200 kil ome ­
t e rs) of n orm al cit y dri ving . You can co mpen sa te for thi s by
p re ss ing the brak e ped al mor e firmly . Th is also app lies la ter whe n
n ew pad s are in sta lled.
:J
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 damaged.
This is especially true for vehicles with low -slung chassis (sports
chassis) * and fully loaded vehic les.
Driving through water on roads
Note the fo llowing 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 vehicle
body .
• Do not drive faster than wa lking speed.
& WARNING
Aft er d riv in g throu gh water, m ud, s lus h, et c., the br akes ma y be
s low t o take eff ect beca use of w et br ake r otor s and p ad s. Dr y the
br ak es fir s t by br aking caref ully to r estor e th e full br aking effe ct.
0 Note
Vehicle components such as the engine, transmission, suspension
or e lectrica l system can be severe ly damaged by driving through
water .
[ i ] Tip s
• Check the depth of the water before d riving th rough it .
• Do not stop the vehic le, drive in reverse or switch the engine off
wh en driving through wat er.
• Keep in mind that oncoming vehicles may create waves that
raise the water level and make it too deep for your vehicle to drive
through safely.
• Avoid driving through salt water because it can cause
corrosion. •
Catalytic converter
It is very important that your emission control system
(catalytic converter) is functioning properly to ensure that
your vehicle is running in an environmentally s ound
manner.
- Always use lead -free gasoline ~ page 265, "F uel supply" . .,_

-Neve r run the tank down a ll the way to empty .
- Never put too much motor oil in your engine=>
page 275,
"Adding engine oil 'l:::r.".
-Never try to push- or tow-start your vehic le .
The catalytic converter is an efficient "clean -up" device built into the
exhaust system of the vehicle. The cata lytic converter burns many
of the po llutants in the exhaust gas before they are released into the
atmosphere.
The exclusive use of un leaded fuel is critica lly important for the life
of the catalytic converter and proper functioning of the engine .
& WARNING
• Do not par k or operat e the vehicle in areas w here the ho t
ex haust sys te m m ay come in conta ct w ith d ry grass, bru sh , fu el
s pill or other mater ial which can cause a fire.
• Do not ap ply ad diti ona l u nd erc o ati ng or ru stpro ofing on o r
n ea r th e ex haust m an ifold, exhau st pipe s, ca talytic convert er or
h eat s hield s. Dur ing drivin g, the sub sta nce use d for und ercoa ting
c ould o verh eat and cause a fir e.
0 Note
• Be aware that just one tank filling with le aded fue l wil l a lready
seriously degrade the performance of the catalytic converter.
• Do not exceed the correct engine oil level
~ page 275.
• Do not drive until the fuel tank becomes completely empty. The
engine could misf ire. Unburned fuel could also get into the exhaust
system and this could cause the catalytic converter to overheat.
• Do not turn off the ignit ion whi le the vehicle is moving.
• Do not continue to operate your vehicle under these conditions,
as otherwise fuel can reach the cata lytic converter. This could result
in overheating of the converter, requiring its rep lacement .
Controls and equip­
ment Safety first Vehicle operation
Dri
ving and environm ent
• To assure efficient operation of the Emission Control System:
- Have your vehic le maintained properly and i n accordance w ith
the service recommendations in your Warranty
& Maintenance
booklet .
- Lack of proper maintenance as wel l as improper use of the
vehic le wi ll impair the function of the em ission control system
and could lead to damage .
Even when the Emission Control System is operating properly, the
exhaust gas can have a sulfur-like exhaust gas smell under some
operating states . This depends on the su lfur content of the fuel
bei ng used. Using a different brand of fue l may help, or fil ling the
tank with lead-free super grade gasoline .
Operate your vehicle economically
and minimize pollution
General
Your personal style of driving will determine the economy
of your vehicle, as well as exhaust and noise levels .
Fuel economy, environmental impact, and wear on your engine,
brakes and tires largely depend on three factors:
• your persona l driving style
• operating conditions
• technica l limitations
If you anticipate what you need to do next and drive economica lly,
you can easily cut your fuel consumpt ion by 10-15 percent . This
section wil l give you some tips on how you can help the environ-
ment and your pocketbook . ...
Vehicle care Do-it-yourself service Technical data

The amount of oil used is related to engine load and speed .
It is normal for the oil consumption of a new engine to reach its
lowest va lue after a certain mileage has been driven.
You must drive your vehicle about 3,000 mi les (5,000 kilometers)
before you can properly assess oil consumption.
This also applies to fuel consumption and engine output.
0 Note
• Have your vehicle maintained properly and in accordance with
the service recommendations in your Warranty
& Maintenance
booklet. Lack of proper maintenance as well as improper use of the
vehic le wi ll impair the function of the emission control system and
cou ld lead to damage.
• Do not alter or remove any component of the Emiss ion Contro l
System unless approved by the manufacturer.
• Do not alter or remove any device, such as hea t shields,
switches, ignition wires, valves, which are designed to protect your
vehicle's Emission Control System and other important vehicle
components. •
Fewer short trips
~-----------------
Fu e I consumptio n will always be relat ively high on short
tri ps.
- Try to avo id driving s hor t distan ces wit h a cold engine.
The engine and catalytic converter have to reach their optimal oper­
ating t emper ature
to reduce fuel consumption and noxious emis­
sions effective ly .
Just after starting, a cold engine in a mid-size car only achieves a
fue l economy of 6 -8 miles per gallon (30 -40 1/100 km). After about a
half a mile, fuel economy climbs to 12 mpg (201/100 kml. After about
2.5 miles (4 km), the engine is at its proper operating temperature
Controls and equip­
ment Safety first Vehicle operation
Dri
ving and environm ent
and fuel economy has reached a normal level. So you can see that
you sh ould avoid short trips whenever possib le .
The
o ut side t emper atu re is also critical in this regard. Your car
consumes more fuel in the winter than in the summer .•
Vehicle care Do-it-yourself service Technical data

•
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 337, "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 266 .
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.
F ue l supply and fillin g you r fu el tank
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 w ill
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 __ lllll
Consumer Information
Warranty coverages
Y o 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

llffl __ A_l.:. p _h_ a_ b_e _t _ic _ a_l _in _ d_e _x ____________________________________________ _
Care of exterior ... .. ... ... ... ... ... . 252
Cargo area
See Loading the luggage compartment ..
175
Cargo net .... .... ................... 79
Catalytic converter . . . . . . . . . . . . . . . . . . 244
Center armrest Adjusting ........................ 78
Storage compartment ........ .... . 78
Certification . . . . . . . . . . . . . . . . . . . . . . . 342
Changing a flat tire .. .... .... ....... 312
Changing a wheel ................... 312
Changing engine oi l ...... .... .... ... 276
Chassis Undercoating . . . . . . . . . . . . . . . . . . . . 258
Checking Engine coolant level .. ...... ...... 278
Checking tire pressure .... .... .... ... 293
Child restraint system anchors ........ 227
Child restraints Danger of using child restraints in the
front seat . . . . . . . . . . . . . . . . . . . . . . 190
Where can I get additional information
about child restraints and their use? ...
232
Child safety ................... .... . 213
Convertible locking retractor . . . . . . . 223
Important safety instructions for using
child safety seats .... .... ... .... 216
Important things to know when driving with chi ldren ................... 213
Installing a child restraint using the
LATCH system .................. 229 Lower
anchorages ... ...... ...... . 228
Mounting and releasing the anchorage hook .. .............. ....... ... 229
Tether anchors .. ...... .... .... .. 230
Tether straps ........ ....... ..... 230
Child safety seats ... ........... ..... 218
Booster seats .. ... .... ........ ... 221
Convertible chi ld seats ............ 219
Convertible locking retractor . ...... 223
Danger of using child restraints in the
front seat . . . . . . . . . . . . . . . . . . . . . . 190
How do I properly install a child safety
seat in my vehicle? ........ ...... 216
Infant seats ...... ........ ....... 218
Installing ....................... 223
LATCH system . . . . . . . . . . . . . . . . . . . 229
Safety instructions .... ...... ..... 216
Cigarette lighter ........ ....... ...... 87
Cleaning Alcantara® (synthetic suede) . ..... 262
Engine compartment ....... ... ... 263
Fabrics and fabric coverings ..... .. 259
Instrument panel ................. 260
Interior .. .... .... ... .. .... .... .. 259
Leather ......................... 261
MMI display ..................... 259
MM I termina l .. ... .... .... .... ... 259
Plastic and vinyl .. .. ......... ... . 256
Plastic parts . . . . . . . . . . . . . . . . . . . . . 260
Safety be lts ...... ....... ........ 263
Trim strips . ........... .... ...... 255
trim strips ... .. ........ .... ... ... 256
Cleaning and protection .. ........ ... 252
Clock ........ .... ...... ....... ...... 10 Coat hooks
. . . . . . . . . . . . . . . . . . . . . . . . . . 89
Co ld tire inflation pressure .... ....... 291
Compact spare tire .................. 311
See also Spare tire ........ ...... .. 311
Compass mirror . ...... .. .... .... .... 67
Comp liance ...... .... ....... .... ... 342
Consumer Information .... ... ... . 177, 339
Contacting NHTSA ... .... .... .... ... 177
Convenience closed ... ....... ........ 49
Convenience key ..................... 44
START ENGINE STOP button ... 110, 111
Starting engine .... ....... .... ... 110
Switching engine off .............. 111
Switching on ignition ............. 11
O
Unlocking and locking vehicle ... ... . 44
Convenience opening ...... ........... 49
Convertible child safety seats ...... ... 219
Convertible locking retractor Activating .. ....... .... ...... .... 225
Deactivating ..................... 226
Using to secure a child safety seat .. 223,
225
Coolant system ..................... 277
Cooling System Expansion tank .... ........... ... 278
Cornering light ...................... 57
Cruise contro l
Changing speed . ...... .... .... .. 116
Preselect speed .. ...... ..... .. ... 116
Switching off ... .. .... .... .... ... 116
Switching on ...... ........... ... 115
Warning/indicator lights ... .. ...... . 15
Cruising range ................... .... 23