2011 AUDI A5 COUPE technical data

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Fast charging the battery (charging rate above 14 .8
Volts)
For technical reasons do not use a battery charge r that uses voltage
greater than 14.8 Volts to charge yo ur vehicle's battery.
& WARNING
Charging a battery can be dangerous.
• Always follow the ope rat ing instructions provided by the
battery charger manufacturer when charging your battery .
• Never charge a frozen battery. It ma y explode because of gas
trapped in the i ce . Allow a frozen battery to thaw out first .
• Do not reuse batteries which were frozen . The battery housing
may hav e cra cked and weakened when th e batter y froze.
• Charge the battery in a well ventilated area . Keep away from
open flame or electr ical spark . Do not smoke . Hydrogen gas gen er­
ated by the battery i s explosive.
• To reduce the danger of explo sion, n ever conne ct or dis connect
c harger cables while the charger is operating.
• Fast charging a battery is dangerous and should only be
attempted by a competent te chnician with the proper equipment.
• Battery acid that may spill during charging should be washed
off with a solution of warm water and baking soda to neutralize
the acid.
0 Note
Never use a fast charger as a booster to start the eng ine. This w ill seri­
ous ly damage sens itive elect ronic components, such as control units,
re lays, rad io, etc., as well as the battery charger. •
Safety first
Battery replacement
The ne w ba ttery must have the same spe cific ations and
dimensions as the original equi pment battery.
Inte lligent energy management in your veh icle is responsible for
dist ributing the ele ct ric a l ene rgy t hroughout yo ur veh icle
~ page 243. The intelligent energy management system will keep
t he eng ine ba ttery c ha rged better then vehicles wi thou t this system.
To make sure the additional e lectrical energy is available once again
after you h ave changed the ba tte ry, we re commend t hat yo u inst all
batter ies of the same type and ma nufacture only (the same as t hose
installe d at the time your ve hicle was delivere d). Specifications a re
listed on the battery housing . Your authorized Aud i dealer must code
the batte ry in the energy management system to enable you to use
the energy management f unctions co rrectly after rep laci ng the
battery.
If it is no t poss ibl e to use a batte ry of thi s ty pe, the new ba tte ry mus t
have the same capac ity , voltage (12 volts) , amperage , construction
and plug sea ling .
Whe n ins tal ling the ba ttery, make sure the ign it io n and a ll electr ica l
cons umers are turned off.
0 Note
Make s ure t he venti lation hose on the s ide of the battery is
co nnected, o the rwise fumes or battery acid can lea k out.
W For the sake of the environment
B ecau se of the p roblem of proper di sposal of a ba tte ry, we recom ­
mend your authorized Audi dealer change the battery for you.
B atteries con tain sulfuri c acid and lead and m ust always be dispose d
of properly in comp liance w it h all environmental regulations.
Dis pos ing o f vehi cle b atter ies im proper ly is ve ry dange ro u s to the
environment .•
Vehicle care Technical data

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Tires and wheels
Tires
General notes
Tires may be the least appreciated and most abused
parts of a motor vehicle.
T ir es may be the least appreciated and most abused pa rts of a motor
vehicle . Tires are, however, one of the most important parts of a
vehicle , pa rticul arly conside ring the comparat ive ly small patch of
rubber on eac h tire that assures that all-important contact between
you, your veh icle and the road.
Maintai ning t he cor rect tire pressu re, mak ing su re that your veh icle
and i ts tires do not have to carry more weight t han they can safely
hand le, avoid ing damage from road ha za rds and regularly inspecting
tires for damage includ ing cuts, s lashes irregular wea r and ove rall
condi tion a re the mos t important th ings that you can do to help avoid
sudden t ire failure including tread separation and blowouts.
Avoiding damage
If you have to d rive ove r a cur b or sim ilar obstacle, d rive very slowly
and as close as possible at a rig ht angle to the curb .
Always keep chemicals incl ud ing grease, oil, gaso line and brake f luid
o ff t he t ires .
Ins pect the ti res regularly for damage (cu ts, cracks o r blisters, e tc.) .
Remove any foreign bodies embe dded in the treads.
Storing tires
M ark tires w hen yo u remove t hem to indica te t he d ire ct io n of rota ­
tion . This ensures you to be ab le to mount them correctly when you
re insta ll them.
Whe n removed, t he wheels or tires should be sto red in a cool, dry and
preferably da rk p lace.
Safety first
Store tires in a v ertica l pos it io n if they a re not mount ed on rims, in a
hor izonta l posit ion if they are mounted on r ims.
New tires
N ew tires have to be broken in~ & .
Th e tre ad d epth of new ti res may v ary, accor ding t o th e type an d
make of t ire and the tread pattern .
Hidden damage
Damage to tires and rims is often not readi ly visible. If yo u notice
unu sual vib ra ti on o r the ve hicle pulls to one side, t his may in dica te
that one of the t ires has been damaged. The tires must be checked
im media tely by an auth oriz ed A ud i d eale r or qual ifie d wor ks hop.
Unidirectional tires
A un id irectional tire can be identified by arrows o n th e sidewall , th at
point in the direct ion the t ire is designed to rotate. You must fo llow
t he s peci fied dire ction o f ro tat io n . This is neces sary so t hat t hese
tires can deve lop their optimum cha racte ristics regard ing g rip, road
noise, we ar an d hy dropl aning res ist an ce. F o r more informat ion
~page 321 .
& WARNING
New tires or tires that are old , worn or damaged cannot provide
maximum control and braking ability.
• New tires tend to be slippery and must also be broken-in . To
reduce the risk of losing control, a collision and serious personal
injuries , drive with special care for the first 350 miles (560 km).
• Driving with worn or damaged tires can lead to loss of control,
sudden tire failure , including a blowout and sudden deflation ,
crashes and serious personal injuries . Have worn or damaged tires
replaced immediately. _..
Vehicle care Technical data

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Groove
means the spa ce between two ad jacen t tread ribs .
Load rating (code)
mea ns the max imu m load th at a tir e is ra te d to c arry fo r a give n infla­
tion pressure. You may not find this information on all t ires beca use
i t is no t required by law .
Maximum load rat ing
me ans the load r ati ng for a t ire at th e maxi mum p ermis sib le in flation
pressure for that tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weig ht
(c) Vehicle ca pacity we ight, and
(d) Pro duct ion op tions weigh t
Maximum (permissible) inflation pressure
means the m aximu m cold infla tio n pr essur e to whi ch a t ire may be
inflated . Also called "maximum inflat ion press ure."
Normal occupant weight
means 150 lbs. (68 k ilog rams) times t he num ber of occupants seate d
in t he vehi cle up to the total sea ting cap aci ty of yo ur vehicl e.
Occupant distribution
means d is tribut ion of occ upan ts i n a vehicle.
Outer diameter
means the ove rall d iameter of an inflated new tire.
Overall width
means the linear distance betwee n the exter iors of the s idewalls of
a n in flated tire, in cludi ng eleva tions due to la beling, dec ora tions, o r
protective bands or ribs.
Safety first
Ply
means a layer o f rubbe r-coate d para llel co rds.
Production options we ight
me ans the co m bine d we ight of tho se in stalled regu lar pr oduction
options weighi ng over 5 lbs. (2.3 kg) in excess of t hose standard
i t ems w hic h they replace, not previously considere d in c urb we igh t o r
accessory weight, includ ing heavy duty brakes , ride levelers, roof
rack, heavy duty battery, and s pecial tr im.
Radial ply tire
me ans a pneuma tic tir e in wh ich the pl y cords that extend to t he
beads are laid at substantially 90 degrees to the centerline of the
t rea d.
Recommended inflation pressure
see => page 292, "C old tire in fla tion pr essu re".
Reinforced tire
mea ns a t ire desig n to operate at h ig her loads and at h igher i nflat io n
pressures tha n the corresponding standard tire . Re inforced tires may
be iden tifi ed as " XL", "x l", "E X TR A LOA D", or "RF " on t he sidew all.
Rim
means a metal suppo rt fo r a tire or a tire and tube assemb ly up on
wh ic h the t ire beads are seated.
Rim diameter
means nom inal d iameter of the bead seat . If you change yo ur whee l
si ze, yo u w ill have to purchase new tires to ma tc h the new r im diam­
eter .
Rim size designation
means r im diamete r and width.
Rim width
mea ns nom inal dis tance be twee n rim flanges.
Vehicle care Technical data

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Occupant loading and distribution for vehicle normal load for various designated seat ing capacities
Designated seating capacity, num- Vehicle normal load , number of Occupant distribution in a nor­
mally loaded vehicle
ber
of occupants occupants
4 2 2 in front •
Co ld tire inf lation pressure
Tire pr essur e aff ects the overall handling, performance and safety of a vehicle.
F ig . 2 12 Tire pre ssure
label : loca te d e ithe r on
drive r's s ide B -pillar or
i ns ide th e fuel fille r
flap
Tire pressure generally refers to the amount of air in a tire that it
nee ds it to do its job and safe ly ca rry the combi ned load of t he en tire
vehicle and its contents. Tire pressure is measured in kilopascals
(kPa), the inte rn ational measuri ng un it and in pou nds per square i nch
(PSI) . Tire pressure is based in part on the ve hicle's design and load
limit -the greatest amount of weight that the vehicle can ca rry safe ly
and the t ire size . The proper tire pressure is frequent ly refe rred to as
the "recommended cold t ire inflation pressure ." Air in t he tires
expands when the t ire hea ts up because of i nternal fric tion whe n it
flexes in use . The tire press ure is higher when the ti re has warmed up
t han whe n it is "cold."
It is the inflat io n pr essu re in a "co ld" t ire that
counts. The refore, you sho uld never let air out of a warm t ire to
match "cold ti re infla tion pressure" recommendations . The t ires
would then be under inflated and could fail suddenly.
Vehicle OP-eration
(.
~ ( SEATING CAPACllY JOTAL l:FRONT l:CENTER I )!EAR I )
TIRE AND LOADING INFORMATION
Tot--""'91"dOCC10-,ndQ,gc>"""-"1 ___ "90<- lb$.
TIRE SIZE COW TIRE PRESSURE
FRONT -KPa, - PSI
REAR -KPa, -PSI
Fig . 213 Tire pres sure
label
Ma intain ing proper tire pressure is one of the most important things
you can do to he lp avoid sudde n tir e f ailur e. Under infl ated tires a re a
major cause of sudden tire fa ilure. Keep ing t ires at the rig ht pressure
is a lso important for s afe and responsive vehi cle ha nd ling, tractio n,
braking and load carrying.
Tire pressures are particularly important
when the vehicle is being driven at higher speeds , and then e spe·
cially when heavily loaded even within the permissible load­
carrying capacities approved for your vehicle .
The recommended tire pressures for your Audi depend on the kind of
ti res on your vehicle and the numbe r of passengers and/or amou nt of
l u ggage you will be transpo rting .
On USA vehicles, the tire pressure label is located on the d river 's side
8 -pi lla r. O n Ca nada vehi cles, the tire pressure label is located either
on t he driver's side 8- pilla r o r i nside the f uel filler flap . The tire pres ·
s u re labe l lists the recommended co ld tire inflation press ures for the ..,.
Vehicle care Do-it-yourselt service iTechnical data

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Remember, your safety and t hat o f your passengers also depends o n
making sure th at load limit s are not exc ee ded . V ehicle load in cludes
every body and everything in a nd on the veh icl e. These load limits are
tec hnically refer red to as t he ve hicle's G ross Vehicle Weight Rating
("G VWR") . The Gross Axle Weight Rat ing ("GA WR") is th e max imum
load that can be a pplied at each of the ve hicle's two ax les. The Gross
Vehicle Weigh t Rating and the G ross Ax le W eig ht R ating are listed on
the safety comp liance st ic ker label located either on the driver's side
B -pillar or on t he inside of th e f uel fi ller f lap. T he tire press ure label
on yo ur Audi lists the maximum comb ined weig ht of all of the occu­
p ants a nd lugg age o r othe r car go tha t t he ve hicl e c an ca rry . Fo r the
location of t he tire pressure label~
page 295, fig. 212.
& WARNING
Overloading a vehicle can cause loss of vehicle control , a crash or
other accident, serious personal injury, and even death .
• Carrying more weight than your vehicle was designed to carry
will prevent the vehicle from handling properly and increase the risk of a loss of vehicle control.
• The brakes on a vehicle that has been overloaded may not be
able to stop the vehicle within a safe distance.
• Tires on a vehicle that has been overloaded can fail suddenly
causing loss of control and a crash.
• Always make sure that the total load being transported -
including the weight of a trailer hitch and the tongue weight of a
loaded trailer -does not make the vehicle heavier than the
vehicle's Gross Vehicle Weight Rating.
& WARNING
• Incorrect tire pressure s and/or underinflation can lead to a
serious or fatal accident .
• Incorrect tire pressures and/or underinflation cause increased
tire wear and can affect the handling of the vehicle .
Safety first
& WARNING (cont inued )
• Incorrect tire pressures and/or underinflation can also lead to
sudden tire failure, including a blowout and sudden deflation,
causing loss of vehicle control. •
Checking tire pressure
The cor rect t ire pres sure fo r the tires o rig inall y installed
on you r veh icle is list ed o n the t ire pr ess ure la bel l ocat ed
e ither on driver's s ide 8-pillar or insi de th e fue l fill er flop.
Th e recommended tire pressure s are on the tire pressur e l abe l and in
the table ~
page 295, "Cold tire inflation press ure" .This means that
t he pressure must be check ed an d a dju sted w hen the tire h as no t
been dr iven for more tha n a cou ple of m iles (k ilometers) at low
s peeds dur ing t he pr evious t hree hour s. Air in the tires ex pands w hen
t he tire heats up as a resu lt of i nterna l fric tion as it flexes in use. The
tire pressu re is hig he r when the t ire has warmed up than when it is
"cold ."
It is the in flation press ure in a "cold" t ire that counts. Therefore, yo u
sh oul d n eve r le t a ir ou t of a warm t ir e to ma tch "C old tire in flatio n
pressure" recommendations~
page 295. The t ires would then be
unde rin flat ed and co uld fail su ddenly.
Th e tire pressu re labe l on yo ur Audi lists t he recommended co ld t ire
inflation pressures at ma ximum capacity fo r th e new, o rigina l equip ­
me nt t ires that were on yo ur vehicl e at th e time it wa s manuf actured .
For the location of t he label ~
page 295, fig. 212.
M ost t ires lose air natura lly ove r time. T hey c an also lose some air if
you d rive over a potho le or hit a curb while pa rking . It is usually not
poss ible to see whether the radia l ti res used today are unde rinflate d
just by loo king at them .
T he refore, be sure to check t ire pressures at least once a month and
alw ay s before go ing on a lo ng trip. Make sure to take the num ber of
people and the amount of luggage into account whe n ad justing tire .,.
Vehicle care Technical data

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& WARNING (co ntinued )
• Only when all tire s on the vehicle are filled to the correct pre s­
sure, the tire pressure monitoring sy stem* can work correctly .
• The u se of incorrect tire pressure values can lead to accidents or
other damage. Therefore it is essential that the driver observe the
specified tire pressure values for the tires and the correct pres­
sures for the function of the tire pre ssure monitoring system *.
• Always inflate tires to the recommended and correct ti re pre s­
sure before driving off.
• Driving with underinflated tire s bend more , letting them get
too hot resulting in tread separat ion, sudden tire failure and loss
of control.
• Excessive speed and /overload ing can cause heat build-up ,
sudden tire failure and loss of control.
• If the tire pressure is too low or too high , the tires will wear
prematurely and the vehicle will not handle well.
• If the tire is not flat and you do not have to change a wheel
immediately, drive at reduced speed to the neare st service station
to check the tire pressure and add air as requ ired.
0 Note
Dr iv ing without valve stem caps can cause damage to the tire valves.
T o preven t this, a lways make su re t hat fac tory ins talle d va lve stem
caps on all wheels a re securely mo unted on the valve.
'£> For the sake of the environment
Under inflated t ires will a lso increase the fuel consumption .•
Tires and vehicle Load Limits
T here are lim its to the amount of load or we ight that any vehicle a nd
any t ire can c arry . A veh icle t hat is over loaded w ill not hand le well an d
Safety first
is more difficult to stop . Overloading can not only lead to loss of
veh icle co ntro l, bu t ca n also d amage important p art s o f the ve hicl e
and can lead to sudden ti re failure, including a blowout and sudden
deflation that can cause the vehicle to crash.
Your safety a nd tha t of you r passe ngers also depe nds o n mak ing s ure
that load limits are not exceeded. Vehicle load incl udes everybody
and everyt hing in and on t he ve hicle. T hese lo ad lim its are techn ic a lly
referred to as the vehicle's
Gross Vehicle Weight Rating ("GVWR").
Th e "GVWR" includes the weight of the basic vehi cle, all facto ry
installed accessories, a fu ll tank of fue l, o il, coo la nt and other fluids
plus maxim um loa d. Th e maxim um loa d includes t he nu mber of
passeng ers th at t he ve hicl e is intended to car ry ("sea ting capa city ")
with an ass umed weig ht of 150 lbs . (68 kg) for each passenger at a
design ated seating posit ion a nd the to tal weig ht of any luggage in
the vehicle. If yo u tow a tra iler, the weight of the trailer hitch and the
t ongue weig ht of the lo ad ed t railer mus t be include d as pa rt of the
vehicle load.
Th e
Gross Axle Weight Rating ("GAWR") is the maximum load that
can be a pplied at each of t he ve hicle's two axles .
The Gross Vehicle We ight Rating and the Gross Ax le We ight Rating
are li sted on the safety comp lia nce s tick er label loca ted either on the
dr ive r's side B-pilla r o r on the inside of the fuel filler flap . Aud i has
4 se ating posi tions, 2 in the fron t and 2 in the rea r for tot al s eating
capacity of 4. Each seating position has a seat belt~
page 181,
"Safety be lts".
Th e fact t hat there is an upper lim it to your v eh icle 's Gross Vehicle
Weight Rating means that t he tota l weight of whatever is being
c a rried in th e veh icle ( in cl ud ing the w eight of a t railer hitch and the
tongue weight of the loaded tra iler) is limited. The mo re passengers
in the veh icle or p assengers who are heavier th an the sta ndar d
we ights assumed mean that less we ight can be carried as luggage.
Th e ti re pressure label on yo ur Audi also lis ts th e maxim um combined
we ight of all of the occupants and luggage or other cargo that the
vehicle can car ry. For the location o f the labe l~
p age 2 95, fig . 21 2. ~
Vehicle care Technical data

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5. Determine the combined weight of
luggage and cargo being loaded on the
vehicle. That weight may not safely
exceed the available cargo and luggage
load capacity calculated in Step 4.
6. If your vehicle will be towing a trailer,
load from your trailer will be transferred
to your vehicle. Consult this manual to
determine how this reduces the available
cargo and luggage load capacity of your
vehicle.
Check the tire sidewall(~
page 303~
fig. 216) to determine the designated
load rating for a specific tire .•
Vehicle OP-eration
Tire service life
The service life of tires depends on a lot of different
things including proper installation and balancing,
correct tire pressure and driving style .
(-----~
_____ __,,:)
Tread Wear Indicator (TWI)
N
"' 0 9
"" ~
Fig. 214 Tire tread:
tread wear indicators
(TWI)
Fig. 215 Rotating
tires for more even
wear
Th e original tires on your vehicle have 1/16 inch (1.6 mm) high "wear
indicators "~ fig. 214 running across the tread. Depending on the
make, there will be six to eight of them even ly placed around the tire.
Marks on the tire sidewall (for example "TWI" or other symbols) indi­
cate the positions of the tread wear indicators. Worn tires must be
rep laced. Different figures may apply in other countries ~
&- .,_
Vehicle care Do-it-yourselt service iTechnical data

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New tires and replacing tires and wheels
New tires and wheels have to be broken in.
Fig. 21 6 Tire s pecificati on co des on th e sidew all of a tire
No .
©
@
®
©
©
©
Descript ion
Passenger car tire (where applicable)
Nominal width of tire in mil limeters
Ratio of height to width (aspect ratio)
Radial
Rim diameter code
Load index an d speed rating
Vehicle OP-eration
(j)
®
®
@
@
U.S. DOT tire identification number
Audi Orig inal tire
Sever snow conditions
Tire p ly composition and materia ls used
Maximum load rating
@ Treadwear, traction and temperature grades
@ Maximum permissible inflation pressure
T he tires and rims are essential pa rts of the vehicle's design . The tires
and r ims approved by Audi are specially matched to the character is­
t ics of the vehicle and can make a major contribut ion to good road
holding and safe handling when in good condition and properly
inflated
=> & .
We recommend that all work on t ires and wheels be performed by an
authori zed Au di deale r. They are fam il ia r with recommended proce­
dures and have the necessary special tools and spare parts as well as
the proper facilities for disposing of the o ld tires.
Authorized Aud i dea lers have the necessary info rmation about tech­
nical requirements for insta lling or changing tires and rims .
Replacing tires and wheels
Tires should be replaced at least in pa irs and not ind iv idually (for
example both front tires or both rea r tires together) .
Be sure to read and heed the in formation to the tire pressure mon i­
t o ring system *=>
page 310.
Always b uy replacement radial tires t hat have the same specificat ions
a s t he tires approved for yo ur ve hicl e by Audi. Re placemen t tires must
always have the same load rating specification as the orig inal eq uip­
me nt or approved optiona l tires listed in the table =>
page 295.
Audi -app roved spe cifica tion tires are spec ially ma tched to yo ur
vehicle and its load lim its, and can contrib ute to the important road- _,.
Vehicle care Do-it-yourselt service Technical data