Engine AUDI A5 CABRIOLET 2011 Manual PDF

Driving and environment
- Never put too much motor oil in your engine=> page 284,
"Adding engine oil~".
- Never try to pus h- or tow-sta rt your vehicle.
The catalytic converter is an efficient "clean-up" dev ice built into the
exhaust system of the vehicle. The catalytic converter burns many of
the pollutants in the exhaust gas before they are released into the
atmosphere.
T he exclusive use of unleaded fuel is c riti cal ly import ant for the life of
the catalytic converter and proper funct io ni ng of the eng ine.
& WARNING
• Do not park or operate the vehicle in areas where the hot
exhaust sy stem may come in conta ct with dry gras s, brush, fuel
spill or other material which can cause a fire.
• Do not apply addit ional undercoat ing or rustproofing on or
near the exhaust manifold , exhau st pipes , catalytic converte r or
heat shield s. During driving, the sub stan ce u sed f or under coating
c ould o ve rheat and cause a fire.
0 Note
• Be aware that just one tank filling with leaded fuel w ill already
ser iously degr ade the performance of the ca talytic co nve rter.
• Do not exceed the correct engine oil level =>
page 284.
• Do not dr ive until the f uel tank becomes com plete ly empty . T he
engine could misfire . Unburned fuel cou ld also get into the ex ha ust
system and t his co ul d cause t he ca talyt ic converter to ove rheat .
• Do not turn off the ignition while the vehicle is moving.
• Do not continue to operate your vehicle u nder these conditions, as
otherwise f uel can reac h the c ata ly tic conve rter. This co uld res ult in
over heat ing of the converter, requir ing its replacement.
• T o ass ure eff icien t operat ion of the Emission Cont rol System: -
Have your vehicle maintained properly and in accordance with
th e se rvice reco mmend ations in your W arran ty
& M ain ten ance
booklet.
- Lack of prope r main ten anc e as well as imp roper use of the
veh icle w ill impair the fu nction of the emission control system and
c o uld l ead to d amage.
~ For the sake of the environment
Even when the Emission Contro l System is operat ing proper ly, the
exhaust gas can have a sulfur-like exhaust gas smell u nder some
operating states. This depends on t he sulfur content of the fue l being
used . Using a different brand of fuel may help , o r fil lin g the tank with
lead-free supe r grade gasoline. •
Operate your vehicle economically
and minimize pollution
General
Yo ur person al sty le of drivi ng will determine the e cono my
of your vehicle, as well as e xhaust and noise levels .
Fuel economy, environmenta l impact, and wear on your engine,
bra kes and tires large ly depe nd on three fa ctors:
• your perso nal driv ing style
• operat ing cond itions
• technical lim itations
If you an ticipa te wh at yo u nee d to do nex t and drive e co nom ically,
you can easily cut your fuel consumption by 10- 15 percent. This
se ct io n w ill give you so me tips on how you ca n he lp the env ironment
and your pocketbook .
9>

Driving and environm ent
------------------------------------------------'
[I) Tip s
The consumption estimates as published by ENV IRONMEN TA L
PROTECTION AGENCY (EPA) and Transport Canada may not corre­
spond to your actual consumption on the road, wh ich w ill vary
depending upon vehicle load and speed, road and weather conditions ,
trip length, etc. •
Drive smoothly :1nd keep a Lookout ahead
Vehicles use the most fuel when they are accelerating .
-Avoid unnecessary accelerating and braking.
Vehicles use the most fuel when they a re accelerating. If you antici­
pate what is going to happen next, you will need to brake less and,
thus, accelerate less. Let the vehicle coast whenever possible -for
example when you see that the next traffic l ight 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 consumption, engine wear, and does
not disturb the environment .
Fuel consumption, exhaust emissions and engine noise increase
disproportionately at high speeds . If you drive at approx imately three
quarters of top speed, fuel consumption will be reduced by one half.
Never dr ive faster t han the posted speed limit and weather condi­
tions permit. •
Controls and equip­
ment Safety first Vehicle operation
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 veh icle by letting the engine run at
idle.
It makes sense to shut off the engine in traffic jams, when wa iting for
trains to pass at railroad crossings, or at traffic lights that have long
wa its on red . Turn ing the engine off for just 30-40 seco nds saves
mor e fuel than is burned starting the engine again .
It takes a long t ime for the engine to wa rm up fully when it is run ning
at idle. However, wear and noxious emissions are espec ia lly high
when the eng ine is wa rming up. So you should dr ive away as soon as
you start the engine and avoid running at hig h rpms while the engine
is still warm ing up.
0 Note
Do not leave engine idling unattended after starting . If warning
lights should come on to indicate improper operation, they would go
unheeded. Extended idling also produces heat, which could result in
overheat ing or other damage to the vehicle or othe r property.
Regular mai n _t_ e_ n_a_ n_ c_e ___________ _
A badly tuned engine unnecessarily wastes a lot of fuel.
-Have your vehicle serviced at regular intervals .
By having you r vehicle regularly serviced by an authorized Audi dealer
helps to ensure that it runs properly and economically . The condit ion
of your vehicle not only affects its safety and ability to ho ld its val ue,
it also affects
fu el con sumpt ion.
C hec k your oil ea ch tim e you fill you r ta nk .
"1>
Vehicle care Do-it-yourself service Technical data

Driving and environment
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 value after a certain mileage has been driven.
You must drive your vehicle about 3,000 mi les (S,000 kilometers)
before you can properly assess oil consumption.
Th is 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 vehicle w ill
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 approved by the manufacturer.
• Do not a lter or remove any device, such as heat shields, switches,
ignition wires, valves, which are designed to protect your vehicle's Emission Contro l System and other important vehicle components .•
Fewer short trips
Fuel consumption will always be relatively high on short
trips .
-Try to avoid driving short distances with a cold engine.
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 only achieves a fuel
economy of 6-8 m iles per gallon (30-40 l/100 km) . After about a half
a mile, fuel economy climbs to 12 mpg (20 l/100 km). After about
2.5 mi les (4 km), the engine is at its proper operat ing temperature and fuel economy has reached a normal
level. So you can see that you
should avoid short trips whenever possible .
The
outside temperature is also crit ical in this regard . Your car
consumes more fue l in the winter than in the summer. •

Trailer towing
"-------------------------------------------------
Trailer load distribution
Be sure the load in the trailer is held securely in pla ce to prevent it
from shifting forward, backward or s ideways.
Never allow a passenger to ride in a trailer => & in "Driving instruc­
tions" on
page 256.
Engine cooling system
Towing a trailer makes the eng ine work harde r. It is important that
the cooling system's performance is up to the additional load. Make
sure that the cooling system has enough fluid.
Tire pressure
When towing a trailer, inflate the tires of your vehicle to the cold tire
pressure listed under "Full load" on the label located either on the
dr iver's side B-pillar (visible when the door is open) or inside the fuel
filler flap . Inflate trailer tires to trailer and tire manufacturers' spec­
ifications.
Lights
The headl ight settings should be checked w ith the trailer attached
before driving off. Check to make sure both vehicle and trai ler lights
are working properly.
Safety chains
Be sure trailer safety cha ins are properly connected from the trailer
to the hitch on the vehicle. Leave enough s lack in the chains to permit
turning corners. When you install safety chains, make sure they will
not drag on the road when you are driving.
T he chains should cross under the trailer tongue to p revent it from
dropping in case of separation from the hitch.
Driving instruct!ons
Driving with a trailer always requires extra care and
consideration.
To obtain the best possible handling of vehicle and trailer,
please note the following:
- Do not tow a loaded trailer when your car itself is not
loaded.
- Be especially careful when passing other veh icles .
- Observe speed limits.
- Do not drive at the maximum permissible speed.
- Always apply brakes early.
- Monitor the temperature gauge .
Weight distribution
Towing a loaded trailer w ith an empty car results in a highly unstable
distr ibution of weight. If this cannot be avoided, drive at very low
speeds only to avo id the r isk of losing steer ing control.
A "balanced" rig is easier to operate and control. Th is means that the
tow vehicle should be loaded to the extent possible and permissible,
wh ile keeping the trailer as light as possible under the c ircumstances.
Whenever possible, trans fer some cargo to the luggage compart ­
ment of the tow vehicle while observing tongue load requirements
and vehicle loading considerations.
Speed
Th e higher the speed, the more difficult it becomes for the driver to
control the r ig . Do not drive at the maximum permiss ible speed.
Reduce your speed even more if load, weather or wind conditions are
unfavorable -part icularly when go ing downhill.
Reduce vehicle speed
immediately i f the trailer shows the slightest
sign of swaying.
Do not try to stop the swaying by accelerating. _,

Observe speed limits. In some areas, speeds for vehicles towing
t railers are lowe r than for regular veh icles.
Always apply brakes early. When dr iv ing downh ill, sh ift in to a lower
gear to use the engine braking effect to slow the vehicle. Use of the
brakes alone can cause them to overheat and fail.
Coolant temperature
The coolant temperature gauge~ page 8 must be observed care­
fully. If the needle moves close to the upper end of the scale, reduce
speed immediately and/or turn off the air conditione r.
If the coolant temperature warning light in the instrument cluster
star ts flashing
-t- , pull off the road, stop and let the engine idle for
about two minutes to prevent heat bu ild-up.
& WARNING
Anyone not properly restrained in a moving vehicle is at a much
greater risk in an accident. Never let anyone ride in your car who is
not properly wearing the restraints provided by Audi. u
Trailer towing tips
Important to know
------------
Your vehicle handles differently when tow ing a tra iler because of the
additiona l weight and different weight distribution. Safety, perfor ­
mance and economy will greatly depend on how carefu lly you load
your trailer and operate your rig .
Before you actua lly tow your trailer, practice turning, stopping and
backing up in an area away from traffic. Keep pract icing until you have
become completely familiar with the way your vehicle-t railer combi­
nation behaves and responds.
Controls and equip­
ment Safety first Vehicle operation
Backing up
is d iff icult and requ ires practice . Backing up with a trailer
generally requires steering action opposite to that when backing up
your vehicle without a trailer.
Maintain a greater distance between your vehicle and the one in front
of you. You will need more room to stop . To compensate fo r the
trailer, you will need a larger than norma l turning radius.
When passing, remember that you cannot accelerate as fast as you
normally would because of the added load. Make sure you have
enough room to pass. After passing, allow plenty of room for you r
trailer before changing lanes again.
Avoid jerky starts, sharp turns or rapid lane changes .
[I) Tips
• Do not tow a trai ler during the break-in per iod of your vehicle.
• If you tow a tra iler, your Audi may requi re more frequent mainte­
nance due to the extra toad~
page 343. •
Parking on a slope
Do not park on a slope with a trailer. If it cannot be
avoided, do so only after doing the following:
When parking:
-Apply the foot brake.
- Have someone place chocks under both the vehicle and the
trailer wheels.
- With chocks in place, slowly release the brakes until the
wheel chocks absorb the load.
- Turn the wheels towards the curb.
- Apply the parking brake .
- Move the se lector lever to
P.
Vehicle care Do-it-yourself service Technical data

Trailer towing
"-------------------------------------------------
When rest arting afte r parking:
- Apply the foot brake.
- Start the engine.
- Move the selector lever to
D.
- Release the parking brake and slowly pull out and away
from the wheel chocks .
- Stop and have someone retrieve the wheel chocks.
(I] Tip s
If you move the se lector lever of the automat ic transm ission* to P
before applying the parking brake and before blocking the wheels,
you may have to use mo re force late r to move the lever out of the
P
position.

-~_C_ le_ a_n_ i_ n_ g=- a_ n_d___. p_ ro_ t_e _c_ t_ i_o _n ___________________________________________ _
Cleaning and protection
General information
Regular care preserves vehicl e val ue.
Any automobile is exposed to industria l fumes, co rrosive road salt,
e tc. A well ca red for Audi c an look lik e new many ye ars after pur cha se.
Regu lar and correct care w ill contribute to mai nta in ing t he bea uty
a nd valu e of your Au di.
Furthermore, good care may be a condition for substantiating a
warranty claim should corrosion damage or paint defects occur.
Yo ur au thori zed Audi d eale r h as a var iety of dedicated vehicle-care
products
and can advise w hich ones to use for clea ning the exterior
a n d inter io r of your ve hicle.
W het her you use products recommended by Aud i or other comme r­
cia lly availab le cleaning agents , please make sure yo u appl y them
co rrectly .
& WARNING
• Cleaning agents may be poisonous . Keep them out of the reach
of children.
• Heed all caution labels .
• Always read directions on the container before using any
product. Follow the directions carefully.
• Most chemical cleaners are concentrated and have to be
diluted .
• Use spot removing fluids only in well ventilated areas.
• Do not use gasoline, kero sene , diesel fuel , nail polish remover
or other volatile fluids . They may be toxic, flammable or
hazardous in other ways. Do not wash, wax or dry the vehicle with
the ign ition on or the engine running .
& WARNING (continued )
• Do not clean the under sides of chassi s, fenders , wheel covers,
etc. without protecting your hands and arms. You may cut your­
self on sharp-edged metal parts.
• Moisture and ice on brakes may impair braking efficiency
~ page 243, "General information ". Test the brakes carefully
each time you wash the vehicle .
'£> For the sake of the environment
Select only envir onmenta lly fr iendly clea ning produc ts . Leftover
cleaning pro ducts sho uld not dis posed of i n the household waste .•
Care of exterior
Washing
F re quent w ashin g protec ts th e vehicle.
T he best protection aga inst env ironmental influences is frequent
w ashi ng and w ax ing. How oft en thi s is requ ired depen ds on :
• How m uch the vehicle is used
• Whe re the ve hicle is parke d (gar age, in the o pen un der tr ees, etc.)
• The seasona l and weather conditions
• Environ mental influences
T he longer bird droppings , insects , tree resin, road and industria l
gr ime, t ar, soo t, road sa lt and o ther ma ter ia ls remain on t he veh icle
body, the more lasti ng their destructive effects w ill be. H igh temper­
atu res cause d by ex pos ure to intense s unlight int ensify the co rrosive
effect, part icu larly when humid ity is high as we ll.
~

-Cleaning and protection pn, _____________________ _
0 Note
• Never use chemical so lvents (e.g. lig hte r fluid, turpentine), waxes,
shoe po lish or simi lar p roducts on Alca ntara ® surfaces .
• To avo id damage, have stubborn stains removed by a commerc ia l
cleaning specialist .
• Do not use brushes, stiff sponges or sim ila rly abrasive cleaning
aids. •
Safety belts
Only well-maintain ed safety belts work reliably when
needed .
-Keep be lts clea n.
- For cleani ng, use a mi ld soap and wa ter solution. Let be lts
d ry thoroug hly and away fro m dir ect sun light.
- Do not allow in ertia re el s afety b elts to ret ra ct bef ore t hey
are comp le tel y dry .
- C heck the condi tion of y our safety bel ts
regularly .
Heavily soiled safety belts may no t re tract p roper ly .
& WARNING
Damaged safety belts can break in a crash.
• Anything that might damage your safety belts could mean
that you and your passengers would not be adequately protected
in an a ccident.
• Safety belt performance depends on correct installation. Never
remove belts from the vehicle to clean them.
• Do not use chemical cleaning agents , bleach or dyes. They have
corro sive properties which weaken the webbing .
& WARNING (c on tinued )
• When cleaning your safety belts , inspect them for damage. If
you discover damage , see your authorized Audi d ealer .
• Always read and heed all WARNINGS and other info rmation
=:> page 260 . •
Engine compartment
B e especi ally care ful w hen cleaning the engine comp art­
men t.
Always switch off the ignition before cleaning the engine=>& .
Plenum panel
Remove leaves from the plenum panel in front of the windsh ield
un der th e eng ine hoo d. This p revents the wate r drain holes from
becom ing b locked, and it prevents debris from entering the ve hicle
inter io r thr ough the heat ing and ventila tion ducts.
Corrosion protection
Th e engine compartment and tran smission have been cor rosion­
protected at the factory.
Goo d an ti- cor ros ion treatmen t is very impo rtan t, pa rtic ula rly in the
w inte r. If the vehicle is frequently driven on sa lt treated roads, t he
entire eng ine compa rtment and plenum pane l sho uld be thoroug hly
cleaned at the end of w inter and retreated to prevent sa lt damage . At
the same time, the underside of the vehicle should be washed as we ll.
If the eng ine co m par tment is clea ned at any time wi th grease
removing solutions
2l, or if you have the engine washed, the anti­
c o rrosion treatment is a lmost always remove d as we ll.
It is the refore
essential to have a long-last ing corrosion protect io n reapplied to all
s u rfaces, seams, joints and components in the engine compartmen t. ~
2
l Use on ly the co rrect clean ing so lut ions . Neve r use gaso line or d iese l fuel.

Cleaning and protection Ill
---------------=---------=----
& WARNING
Be aware: The engine compartment of any motor vehicle is a
potentially hazardous area.
• Before working in the engine compartment, be sure to read the
information =:>
page 272.
• Before reaching into the front plenum panel, always remove
the ignition key. Otherwise, the windshield wiper system could unintentionally be switched on, possibly 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 ignition is off.
• Do not wash, wax or dry the engine with the engine running.
Moving or hot parts could injure you.
• Do not clean the underside of the chassis, fenders, wheel
covers, or other hard to reach parts without protecting your hands
and arms. You may cut yourself on sharp-edged metal parts.
• Always read and heed all WARNINGS and other information
=:>
page 260. •
Safety first Vehicle care Technical data

Fuel supply and filling your fuel tank
Fuel supply and filling your fuel tank
Gasoline
Fuel supply
Using the right fuel helps keep the environment clean and
prevents engine damage.
Fuel recommendation
The f ue l recommended for yo ur vehicle is unleaded premium grade
gasoline. See also=>
page 342, "D at a". Aud i recommends using TO P
TIER Detergent Gasoline with a m inimum octane rating of 91 AKI (9S
R ON ). For more inform ation on TOP TIE R De tergent Gasoline, please
go to the official website (www .topt iergas .com) .
Th e recommended gasoline octane rating for your engine can a lso be
found on a labe l located o n the i nside of t he fue l fille r flap. This rating
may be specified as AKI o r RON .
Yo ur vehicle may a lso be opera ted u sing unle aded reg ula r gaso line
w ith a minim um octane rating of 87 AKI/91 RON. However, using 87
AKI/91 RON octane fue l will slig htly reduce engi ne pe rformance.
Use unleaded gasoline only . Unleaded gaso line is available
througho ut the USA, Canada, and in most E uropean countries. We
recommend tha t you do not take your ve hicl e to a reas or countries
where unleaded gasoline may not be availab le.
For mo re in format io n on refueling your vehi cle, see =>
page 275 .
Octane rating
Octane r atin g indica tes a gaso line's ability to resis t eng ine dam ag ing
"knock" caused by premature ignition and detonatio n. Therefore,
buying the co rr ec t gr ade o f gas oline is very im port an t to help prevent
poss ible engine damage and a loss of engi ne performance .
Gaso line most common ly used in the United States and Canada has
the following octa ne rat ings that can usually be fou nd on the filler
pump: •
Premium Grade : 9 1 -96 AKI
• Regu lar Grade: 87 - 90 AKI
E xp lanation o f the a bbrev iations:
AKI= Anti Knock Index= (R +M)/2 = (RON+MON)/2
RON= Resea rch Octane Number
M ON= M otor Octane Number.
(D Note
• Do not use any f uel w ith oc tane ra tings lower than 87 AKI or 91
RO N othe rw ise ex pensive engine damage will occu r.
• Do
not use leade d gasoline. The use of leaded gasoline w ill
severely damage you r vehicle's catalytic co nve rter and i ts ab ility to
control exhaust emissions.•
Blended gasoline
Use of gasoline containing alcohol or MTBE (methyl
tertiary butyl ether)
You may use unleade d gasoline blended w ith alcoho l or M TBE
( c ommon ly refe rred to as oxygenates) if the blen ded mixture meets
the fo llowing c riter ia:
Blend of g asoline methanol (wood alcohol or methyl alcohol)
• Anti -k nock inde x must be 87 AKI or higher.
• B lend must con tain no mo re t han 3% met hano l.
• Blend must contain more than 2% co-solvents.
Blend of gasoline and ethanol (grain alcohol or ethyl alcohol)
• Anti- knock index must be 87 AKI o r higher.
• B lend must no t conta in mo re than 10% e thanol.