2011 AUDI A5 COUPE Owners Manual

Checking and filling "" ------------------~::....::..:..._~---=---
No
- sparks
-flames
- smoking .
When a battery is charged, it produces hydrogen
gas which is explosive and could cause personal
injury.
Always keep the battery well out of rea ch of chil- .,,_
dren .
_& WARNING
Whenever working on the battery or on the electrical system,
there is the risk of injury, accident and even fire. Read and heed
the following WARNINGS:
• Always wear eye protection. Do not let battery acid or any l~ad
particles get on your skin or clothing. Shield your eyes. Explosive
gases can cause blindness or other injury.
• Battery acid contains sulfuric acid. Sulfuric acid can cause
blindness and severe burns.
-Always wear gloves and eye protection. Do not tilt the
battery because acid could leak out of the ventilation open­
ings.
- If you get battery acid in your eyes or on your skin, imm~di­
ately rinse with cold water for several minutes and get medical
attention.
- If you should ingest any battery acid, seek medical attention
immediately.
• Do not expose the battery to an open flame, electric sparks or
an open light.
• Do not smoke.
• Do not interchange the positive and negative cables.
Safety first
& WARNING (continued)
• When working on the battery, be sure not to short-circuit the
terminals with tools or other metal objects. This would cause the battery to heat up very quickly, which could lead to damage or
explosion and personal injury.
• When a battery is charged, it produces hydrogen gas which is
explosive and could cause personal injury.
• Always keep the battery well out of the reach of children.
• Before work is done on the electrical system, disconnect the
negative ground cable.
• Before performing any work on the electrical system, switch
off the engine and ignition as well as any electrical equipment.
The negative cable on the battery must be disconnected. I! you are
just going to replace a light bulb, then it is enough to switch off
the lights.
• Before disconnecting the battery, switch off the anti-theft
alarm system! Otherwise you will set
off the alarm.
• When disconnecting the battery, first disconnect the negative
cable and then the positive cable.
• Before reconnecting the battery, make sure all electrical
consumers are switched off. Reconnect the positive cable first and
then the negative cable. Never interchange the cables -this could
start a fire!
• Never charge a frozen or a thawed-out battery. It could
explode! If a battery has frozen, then it must be replaced. A
discharged battery can freeze over at 32°F (0°C).
• Make sure the vent hose is always attached to the opening on
the side of the battery.
• Never use batteries which are damaged. There is the danger of
an explosion! Always replace a damaged battery. .,,_
Vehicle care Technical data

___ C_h_ e_c _k _i_n -=g :a,__ a_n_ d_ f_ i_ l _li _n _,g;._ __________________________________________ _
& WARNING
California Proposition 65 Warning:
• Battery post s, terminal s and related ac cess orie s co ntain lead
and lead compounds, chemicals known to the State of California
to caus e cancer and reprodu ctive pr oblem s. Wa sh hand s after
handling .
0 Note
• Do not disconnect the vehicle battery when the ignition is
switched on or when the engine is running, otherwise, you wi ll
damage electro nic components in t he e lectr ical system .
• If your ve hicle is go ing to st and for a long per iod of time witho ut
being d riven, protect the battery from "freezing", ot herw ise it will be
damaged and will then have to be replaced. •
Battery charging
Starting the engine requires a well charged battery .
Fig. 21 0 En gine
c om partme nt: C on nec­
t or s fo r ch arge r and
jump er ca bles
Always read and heed all WARNINGS below ~ & and ~ &
i n "Work ing o n the batte ry" on
page 286 .
-Turn o ff t he ign it ion and all electrica l cons umers. -
Make sure the area is well vent ilate d wh en you c harge the
ba ttery .
- Open t he e ngi ne hood =?
page 274.
- O pen the red cover on the positive pole =? fig. 21 0.
- Con nect the charger con nectors accordi ng to the instruc-
tions to the
jump start bolts . (B olts un der the red cover =
"positive" , Bo lts w it h hex head = "negative") .
- Only now p lug t he ma ins lead for t he c har ging equipme nt
i n to t he wall outlet and tu rn it on ~ & .
-Make sure the charging rate is not over 30 amps /14 .8
Volt.
- When t he batte ry is fu lly c harged: Tu rn the cha rg ing
eq uipment o ff an d
remov e the main s le ad from the wa ll
out let.
- Now remove the clamps for the charging equipment.
- Close the re d cover on the positive pole .
Cl ose the hood ~
page 2 75.
A d ischa rged b atte ry can freeze at t empe ra tures of only 3 2 °F (0 °( ).
Allow a fro zen ba ttery to thaw comp letely before attempt ing to
c harge it =:, & . H owever, we recomme nd not using a thawed b attery
again because the battery casing ca n be cracked due to ice formation
and can leak b attery a cid.
Battery charging (Ma ximum charging rate of 30
amp s/14.8 Volt)
When charging at low vol tages (e.g. w ith a trickle charger ), the
b attery cables do not have to be disconnected first. The batte ry caps
should
not be opened when charging a batte ry .
It is not necessary to remove the battery from the luggage compart-
ment.
~

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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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Windshield/headlight* washer
container
Fig. 211 E ngine
compartment: Wind­
shie ld and headlight*
washer fluid container
The washer fluid container is mark ed with the symbol¢ on
its cap.
- Before you check anything in the engine compartment,
always read and heed all WARNINGS => & in "Working
in the engine compartment" on
page 275.
- Lift the filler cap tongue to add washer fluid. You can fill
the container to the top.
- Press the cap back onto the filler neck after filling the
container .
You can find the reservoir capacity in the table in:::::::, page 339.
Clean water should be used when filling up. If possible, use soft water
to prevent scaling on the washer jets. Always add a glass cleaner solu­ tion (with frost protection in the winter) .
0 Note
Do not mix engine coolant antifreeze or any other additives to fill up
the windsh ield washer reservoir .•

__________________________________________________ T_i_ r _e _s_ a_ n_ d_ w_ h_e_ e _ l_s __ _
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

-~_T_ ir_e_ s_ a_ n_ d_ w_ h_e_ e_ ls _______________________________________________ _
& WARNING (conti nu ed )
• Tire s age even if they are not being used and can fail suddenly ,
especially at high speeds . Tires that are more than 6 year s old can
only be used in an emergency and then with special care and at low
s peed .
Glossary of tire and loading terminology
Accessory weight
means the combined we ight (in excess of those sta nda rd items which
may be rep lace d) of automatic transmission, power steering, power
bra kes, powe r w indows , power seats, radio, and heater, to the extent
that these items are avai lab le as factory- installed equipment
(w het he r i nsta lled or no t).
Aspect ratio
me ans the ratio of t he he ight to t he w id th of the tir e in percent .
Numbe rs of 55 o r lower indicate a low sidewa ll for improved steer ing
respo nse an d be tter overa ll handling on dry p avemen t.
Bead
means the part o f the tire that is made of stee l w ires , wrap ped o r
re in forced by ply cords and that is shaped to fit the rim.
Bead separation
means a brea kdown of the bon d between components in the bead .
Cord
means the st rands forming the plies in the tire.
& W ARNING (continued )
• Never mount used tire s on your vehicle if you are not sure of
their "previous hi story ." Old used tires may have been damaged
eventhoughthedamagecannotbeseenthatcanleadtosudden
tire failure and lo ss of vehicle control.
• If you notice unu sual vibration or if the vehicle pull s to one side
when driving, alway s stop as soon as it is safe to do so and check
the wheels and tires for damage. •
Cold tire inflation pressure
means the tire pressure recommended by the vehicle ma nufa cturer
for a tire of a des ignated size t hat has not been driven for more than
a couple of m iles ( kilomete rs) a t low speeds in the t hree ho ur period
before the tire pressure is measured or ad justed.
Curb weight
mea ns the weig ht of a motor vehicle wit h standard equ ipment
including the max imum cap aci ty of f ue l, oil, and coo lan t, air condi ­
tioning and additiona l weight of optional equipment.
Extra load tire
means a tire design to operate at higher loa ds and at higher inflation
pressures than the co rrespo nd ing standard tire. Extra load tires may
be identified as "XL", "xl", "EXTRA LOAD", or "RF" on the sidewal l.
Gross Axle Weight Rating ( "GAWR ")
means the load -ca rry ing capacity of a s ingle ax le system, measured at
t he t ire-grou nd inte rfaces .
Gross Vehicle Weight Rating ("GVWR")
means the max imum total loaded we ight of the vehicle .

________________________________________________ T_i_re _ s_ a _ n_d_ w_ h_ e_ e_l_s __ _
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

-~_T_ ir_e_ s_ a_ n_ d_ w_ h_e_ e_ ls _______________________________________________ _
Sidewall
means that portion of a tire between the tread and bead.
Speed rating (letter code)
means the speed at which a tire is designed to be driven for extended
periods of time. The ratings range from 93 mph (150 km/h) to 186
mph (298 km/h) =>
page 304. You may not find this information on
all tires because it is not required by law.
The speed rating letter code, where applicable, is mo lded on the tire
sidewall and indicates the maximum permissible road speeds=>
& in
"Winter tires" on
page 307.
Tire pressure monitoring system*
means a system that detects when one or more of a vehicle's tires are
unde rinflated and illuminates a low tire pressure warning te lltale.
Tread
means that portion of a tire that comes into contact with the road.
Tread separation
means pulling away of the tread from the tire carcass.
Treadwear indicators (TWI)
means the projections within the princ ipal grooves designed to give a
visual ind ication of the degrees of wear of the tread. See=>
page 301,
"Tread Wear Indicator (TWI)" for more information on measuring
tire wear.
Uniform Tire Quality Grading
is a tire informat ion system developed by the United States National
H ighway Traff ic Safety Adm inistration (NHTSA) that is designed to
help buye rs make relative comparisons among tires. The UTQG is not
a safety rating and not a guarantee that a tire will last for a prescribed
number of miles (ki lometers) or perform in a certain way . It simp ly
gives tire buyers additional information to combine with other
considerations, such as price, brand loyalty and dea ler recommenda­
tions. Under UTQG, tires are graded by the tire manufacturers in three areas: treadwear, traction, and temperature
resistance. The UTQG
info rmat ion on the tires, molded into the sidewalls.
U.S. DOT Tire Identification Number (TIN)
This is the tire 's "serial numbe r". It beg ins with the letters "DOT" and
ind icates that the tire meets all federal standards. The next two
numbers or letters ind icate the plant where it was manufactu red, and
the last four numbers represent the week and year of manufacture.
For examp le,
DOT ... 2209 ...
means that the tire was produced in the 22nd week of 2009. The
o ther numbers are marketing codes that may or may not be used by
the t ire manufacturer. Th is informat ion is used to contact consumers
if a tire defect requires a recall.
Vehicle capacity weight
means the rated cargo and l uggage load plus 150 lbs. (68 kilograms)
times the vehicle 's total seating capacity as listed on the label located
either on the driver's side B-pillar or on the ins ide of the fu el filler
flap.
Vehicle maximum load on the tire
means that load on an individual tire that is determined by distrib­
ut ing to each axle its share of the max imum loaded vehicle weight
and dividing by two.
Vehicle normal load on the tire
means that load on an individual tire that is determined by distrib­
ut ing to each axle its share of the curb weight, accessory weight, and
normal occupant weight (distributed in accordance with tab le below
=>
page 295) and dividing by two. ~