2011 AUDI A5 COUPE engine

Trailer towing
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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 252.
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 10 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, stopp ing 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 steer ing 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 340. •
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 .
Vehicle care Do-it-yourself service Technical data

Trailer towing
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- Place an automatic transmission* in P, respectively a
manual transmission in first or reverse gear.
When restarting after parking:
- Apply the foot brake.
- Start the engine.
- Move the selector lever to
D, respectively a manual trans-
mission in first gear.
- Release the parking brake and slowly pull out and away
from the wheel chocks.
- Stop and have someone retrieve the wheel chocks.
00 Tips
If you move the selector lever of the automatic transmission* to P
before applying the parking brake and before blocking the wheels,
you may have to use more force later to move the lever out of the P
position. •

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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 239, "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.
~

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0 Note
• Never try to remove dirt, mud or dust if the surface of the vehicle
is dry. Never use a dry cloth or sponge, since this could scratch your
vehicle's paint or windows.
• Never wash your car in bright sunlight. Drops of water act as
magnifying lenses and may damage your paint.
• When you wash your car in the winter: if you rinse your vehicle with
a hose, be careful not to aim the stream of water directly at locks, or
at door or hatch openings -they can freeze shut.
• Never use sponges designed to remove insects, or any kitchen
scouring sponges or similar products. They can damage your paint
finish.
• You should remove debris (such as insects) from the headlight
lenses on a regular basis, for example when refueling your vehicle .
Never use a dry cloth or sponge to clean the headlights. Only use wet
cloths or sponges to prevent scratches .
It is best to use soapy water.
<£> For the sake of the environment
In the interest of the environment, the vehicle should only be washed
in special wash bays. •
Washing your vehicle with a power washer
Cleaning the exterior of your car with a high-pressure
power washer is safe as long as you observe a few simple
rules.
- Before using the power washer, make sure you have read
and understood the WARNINGS=>
& in "General infor­
mation" on
page 256 .
- Always follow the operating instructions for the power
washer. -
Make sure that the jet on the spray hose produces a "fan
shaped spray".
- Do
not hold the spray nozzle too close to soft materials.
When cleaning the vehicle with a power washer always follow the
operating instructions. This applies particularly to the
operating
pressure
and the spraying distance . Maintain a sufficient distance to
soft materials such as rubber hoses and sound/vibration deadening
materials (particularly on the underside of the engine hood). Do not
use a jet which sprays water in a
direct stream or one that has a
rotating jet.
Water temperature should not exceed 140
°F (60 °() .
& WARNING
Never wash tires with a jet that sprays water in a direct stream.
This could cause invisible damage to the tires and weaken them,
even if the spray is from a relatively long distance and for a short
time. Damaged and weakened tires can fail and cause accidents
and personal injury.
0 Note
To avoid damaging your vehicle, always make sure that there is suffi­cient distance between the spray head and soft materials like rubber
hoses , plastic parts and sound-deadening materials. Never aim the
spray head at the same point for a long time. This also applies to
cleaning headlights and painted bumpers. Remember: the closer the
nozzle is to the surface of the material, the greater the stress on the
material. •

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- Once the sta in is no longer v isible, use a soft dry cloth or
tissue to soak up t he mois ture.
Do not use leathe r cle an in g p rodu cts on Alc ant ara® .
You may use a suitable shampoo for removing dust and d irt.
Dust an d grit in the pores and seams can scratch and damage the
surface. If the car is left standing in th e su n fo r long p eriods, th e
Alcantara ® sho uld be protected against direct sun light to prevent it
from fading. S lig ht co lor var iat io ns w ill develop in no rm al use a nd are
not a n ind ication of mater ial deterio ration.
0 Note
• N ever use chem ica l solvents (e .g . lighter fluid, turpentine), waxes,
shoe polish or sim ilar pr od uct s on A lc antar a® su rfa ces .
• To avo id damage, have stubborn sta ins removed by a commerc ia l
cl eaning spe cialis t.
• Do not use brushes, stif f sponges or sim ilar ly abrasive clea ning
aids .•
Safety belts
O nly well -maintained s afety belts work reli ably when
nee ded .
- Keep bel ts clean.
- F or cl ean ing , u se a mild so ap and wa ter so lut io n. Let belts
dr y t ho ro ughly and a way fr om direct s unlig ht .
- Do not a llow in ertia re el safety b elt s to retrac t be fore they
are co mpletely dry.
- Chec k t he co ndition of yo u r safety be lts
regularly .
Heavily soiled safety be lts may not retract properly.
Safety first
& 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 accident.
• Safety belt performance depends on correct installation . Never
remove belt s from the vehicle to clean them .
• Do not use chemical cleaning agents , bleach or dyes. They have
corrosive properties which weaken the webbing.
• When cleaning your safety belts , inspect them fo r damage . If
you discover damage, see your authorized Audi dealer.
• Always read and heed all WARNINGS and other information
~page 256. •
Engine compartment
B e especi ally careful when clean ing the engine co m part ­
me nt.
Always switch off the ign ition before cleaning the engine~& .
Plenum panel
Remove leaves from the plenum pane l in front of the win dshi eld
under the eng ine hoo d. Thi s preven ts the water d rain holes fro m
becoming blocked, and it prevents debris from enter ing th e veh icle
in ter ior thro u gh t he heat ing and ven tilat ion ducts.
Corrosion protection
Th e eng ine com partment and transm iss io n have bee n co rros io n­
protected at the facto ry .
G oo d ant i- cor ros io n trea tmen t is very i mport an t, pa rt icu larly in t he
wi nte r. If the ve hicle is freq uently d riven on sa lt treated roads, the
entire engine compartment and plenum pane l sho uld be tho roug hly .,
Vehicle care Technical data

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cleaned at the end of winter and retreated to prevent salt damage. At
t he same time, t he un dersi de of the vehi cle s hould be w ashed as well.
If the engine com partment is clea ned at any t ime with grease
removing so lutions
2
), o r if yo u have the engine was hed, the anti ­
c o rros ion treatment is almost al ways removed as we ll.
It is th erefo re
e ssential to have a long-last ing corrosion p rotect ion reapplied to all
su rfac es, sea ms, joi nts and compo nent s in t he engi ne c om par tment .
& 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 267.
• 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 under side of the chassis, fenders, wheel
covers, or other hard to reach parts w ithout protecting your hands
and arm s. You may cut yourself on sharp -edged metal parts.
• Always read and heed all WARNINGS and other information
=>page 256 . •
2
l Use on ly th e co rrect clean ing solut ions. Neve r use gas oline o r diese l fuel.

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 fuel recommended for your vehicle is unleaded premium grade
g asoline . See also :::>
page 339, "Da ta ". Aud i recommends using TO P
TIER Detergent Gasoline with a minimum octane ra ting of 91 AKI (95
R O N). For more information on TOP TIE R Detergen t Gasoline, please
go to the official website (www. toptiergas .com) .
Th e recommended gasoline octane ratin g for your engine can also be
found on a labe l located on the ins ide of t he fue l fille r flap. This rating
may be specified as AKI o r RON .
Your vehicle may also be ope rated us ing unleaded reg ular gasoline
with a minim um octane rating of 87 AKI/91 RON. However, us ing 87
AKI/91 RON octane fuel will slig htly reduce engine performance.
Use un leaded ga soline only. U nleaded gaso line is available
throughout the USA, Canada, and in most E uropean co untries. We
recommen d that you do not ta ke your veh icle to areas or co unt ries
where unleaded gasoline may not be available.
F or more in formation on re fueling yo ur vehicle, see:::>
page 270 .
Octane rating
Octane r ati ng indi cat es a gaso line's abi lity to resis t engi ne damag ing
"knock" caused by premature ignition and detonat ion. Therefore,
buying the correc t g rade o f gasol ine is very impo rtan t to help preve nt
possible engine damage and a loss of engine performance .
Gaso line most common ly used in the United States and Canada has
the following octa ne rat ings tha t ca n usually be fou nd on the filler
pump :
Safety first
• Premium Grade: 91 - 96 AKI
• Regular Grade: 87 - 90 AKI
E xplanation of t he abb reviations :
AKI= Anti Knock Index= (R +M)/ 2 = (RON+ MON)/2
RO N= Research Octane Number
M ON= M otor Octane Num ber.
0 Note
• Do not use a ny fue l with octane rat ings lower than 87 AKI o r 91
RO N otherwise expens ive engine damage will occ ur.
• Do
not use leaded gasoline. The use of lea ded gasoline w ill
severely damage your veh icle 's cata lytic converter and its abi lity to
cont rol exhaust emissions .•
Blended gasoline
Use of gasoline containing alcohol or MTBE (methyl
tertiary butyl ether)
Yo u may use unleaded gasoline blended w ith alcoho l or MTBE
( c ommon ly referred to as oxygenates) if the blended mix ture meets
the following criteria:
Blend of ga soline methanol (wood alcohol or methyl alcohol)
• Anti -k nock index m ust be 87 AKI or h igher .
• Bl end must con tain no mo re t han 3% methanol.
• Blend must contain more than 2% co-solvents.
Blend of ga soline and ethanol (grain alcohol or ethyl alcohol)
• Anti-knock index must be 87 AKI o r higher.
• Bl end must no t contain more th an 10% ethanol.
Vehicle care Technical data