battery AUDI A5 COUPE 2011 Owner's Manual

lffll __ C_h_ e_c _k _i_n -=g :a,__ a_n_ d_ f_ i_ l _li _n _,g;._ __________________________________________ _
& WARNING (continued )
-First, fully apply the parking brake , move selector lever of
automatic transmission to "P" (Park); put manual transmi s­
sion in Neutral.
- Alway s use extreme caution to prevent clothing, jewelry , or
long hair from getting caught in the radiator fan , V-belts or
other moving part s, or from contacting hot parts. Tie back hair
before starting , and do not wear clothing that will hang or
droop into the engine .
• Minimize expo sure to em is sion and chemical hazards=>& .
& WARNING
California Proposition 65 Warning:
• Engine exhaust , some of its constituents, and certain vehicle
c omponents contain or emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and reproductive harm. In
addition , certain fluid s contained in vehicle s and certain products
of component wear contain or emit chemicals known to the State
of California to cause cancer and birth defects or other reproduc­
tive harm.
• Battery posts, terminals and related acces sories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive harms. Wash hand s after
handling .
0 Note
When adding fluids, a lways make sure that they are poured into the
proper container or filler opening, otherwise serious damage to
veh icle systems w ill occur.
<£' For the sake of the environment
T o de tect leaks in time, inspect the veh icle floo r pa n from u nder neat h
regu larly. If you see spots from oil or other vehicle fluids, have your
vehicle inspe cted by an au thor ized Aud i dea le r.•
Engine compartment
Engine compartment
These are the most important i tems that y ou can chec k.
Fig. 205 Typ ical layout f or contain ers and engine o il filler cap
(D Jump start poi nt( +) unde r a cover . .... ..... .. .... 288, 3 29
@ Brak e fluid reservo ir ( ) . . . . . . . . . . . . . . . . . . . . . . . . 284
® Engine oil fill er cap(~) . . . . . . . . . . . . . . . . . . . . . . . . 279
© Coolant e xpansion tank (- L ) . . . . . . . . . . . . . . . . . . . . . 282
® Jump start point( -) with hex head screw ........... 288,329.,.

___________________________________________ C_ h_e _c _k_ i_n ~g_ a_n_ d_ f_ i_ll _i_n _g __ _
The fluid level may drop slightly after some time due to the auto­
matic adjustment of the brake pads. This is not cause for alarm.
If the brake flu id level falls considerably below the "MIN " mark, the
brake warning/indicator light (U.S. models:
BRAKE , Canadian mode ls:
{(j)) ) will come on=> page 18 and=> page 33. Do not continue to
ope rate the vehicle. The complete brake system should be thorough ly
checked by an authorized Audi dealer or qualified workshop and the
cause corrected. If the brake fluid level is too low, the brake
wa rning/ind icator light will illuminate. Contact an authorized Aud i
dealer
immediately .
[I] Tips
The brake fluid reservoir is located undernea th the cover. •
Changing brake fluid
Hove the broke fluid changed by on experienced techni­
Clon.
Brake fluid absorbs moisture from the air. If the water content in the
brake fl uid is too high, corrosion in the brake system may result after
a period of time. The boiling point of the brake fluid will also decrease
considerably and decrease braking performance.
Therefore, the brake flu id must be changed
every two years. Always
use new brake fluid which conforms to Federal Motor Vehicle Stan­
dard "FMVSS 116 DOT 4".
The brake fluid reservoir can be difficult to reach, therefore, we
recommend that you have the brake fluid changed by your authorized
Audi dealer. Your dealer has the correct tools, the right brake fluid
and the know-how to do this for you .
& WARNING
• Brake fluid is poi sonous. It must be stored only in the closed
original container out of the reach of children!
Safety first
& WARNING (continued )
• Brake failure can result from old or inappropriate brake fluid.
Observe these precautions:
-Use only brake fluid that meets SAE specification
J 1703 and
conforms to Federal Motor Vehicle Standard 116. Always check
with your authorized Audi dealer to make sure you are using
the correct brake fluid . The correct type of brake fluid is also
indicated on the brake fluid reservoir.
- The brake fluid must be new. Heavy use of the brakes can
cause a vapor lock if the brake fluid is left in the system too
long. This can seriously affect the efficiency of the brakes as
well as your safety. This could result in an accident .
0 Note
Brake fluid will damage the paint of your vehicle.
ffi For the sake of the environment
Because of the prob lem of proper disposal of brake fluid as well as
th e special tools required and the necessary expertise, we recom­
mend that you have the brake fluid changed by your author ized Audi
dealer. •
Battery
General information
Under normal operating conditions, the battery in your Audi does not
need any maintenance . With high outside temperatures or long daily
drives we recommend that you have the electro lyte level checked by
an authorized Audi dealer or qualified workshop . The electrolyte leve l
should also be checked each t ime the battery is charged=> page 288.
~
Vehicle care Technical data

___ C_ h_ e_c _k _i _ n _g ~ a_n _d_ f_il _l_in _ g _________________________________________ _
Have the battery checked when you take your vehicle in for service.
You are well advised to replace a battery that is older than 5 years.
With certain types of a irbag deployment, the battery is disconnected
from the vehicle e lectrical system for safety reasons=>
& in "Repair,
care and disposal of the airbags" on
page 204.
Disconnecting the battery terminals
Some vehicle functions (power window regulators, for example) are
lost if the battery terminals are disconnected. These functions have
to be relearned after the battery terminals are connected aga in . To
prevent this, the battery should only be disconnected from the
vehicle electrical system when absolutely necessary for repairs.
Vehicles not driven for long periods
If you do not dr ive your vehicle over a period of several days or weeks,
electrical components are gradually cut back or switched off. This
reduces energy consumption and maintains starting capability over a
longer period=>
page 243.
Take into consideration that when you unlock you r vehicle, some
convenience functions, such as the master key remote function or
power seat adjustment, may not be available. The convenience func­
tions will be available again when you turn on the ign ition and start
the engine.
W inter operation
During the w inte r months, battery capacity tends to decrease as
temperatures drop. This is because more power is also consumed
wh ile starting, and the headlights, rear window defogger, etc., are
used more often.
Avoid unnecessary power consumption, particularly in city traffic or
when traveling only short distances. Let your authorized Audi dealer
check the capacity of the vehicle battery before winter sets in
=> page 288. A well charged battery will not only prevent starting
problems when the weather is cold, but will also last longer.
W Tips
If your vehicle is left standing for several weeks at extremely low
temperatures, the vehicle battery should be removed and stored
where it will not freeze. This will prevent it from being damaged and
having to be replaced .•
Working on the battery
Be especially careful when working on or near the
battery.
The battery is located in the luggage compartment under the
floor. Before you check anyth ing in the lu~gage compart­
ment,
read and heed all WARNINGS:=>& .
Always heed the safety warnings, when working on the vehicle
battery or the vehicle electrical system to prevent injury .
The following WARNINGS are very important when
working on the battery:
Always heed the following WARNING SYMBOLS and safety pre­
cautions when working on the battery.
Always wear eye protection.
Battery acid contains sulfuric acid. Always wear
gloves and eye protection . .,,_

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.
~

___________________________________________ C_ h_e _c _k_ i_n ~g_ a_n_ d_ f_ i_ll _i_n _g __ _
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

________________________________________________ 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

lffll.___E_ m_ e_ r-' g=- e_n_ c=-y _ s_it _ u _ a_t_ i_ o _ n_ s ______________________________________________ _
Emergency situations
General
This chapter is intended for trained emergency crew s and working
pe rsonnel who have the necessary tool s and equipment to perform
the se operation s. •
Starting by pushing or towing
0 Note
Veh icles with an automatic transmission cannot be started by
pushing or towing .•
Starting with jumper cables
If necess ary, the engine can be started b y connectin g it to
t he bat tery of another vehicle.
If the e ng ine shou ld fa il to start because of a discharged or weak
battery, the batte ry can be connected to t he battery of
another
veh icle, us ing a pair of jump er cables to start t he eng ine .
Jumper cables
Use only jumper cables of suffic iently large cross section to carry the
sta rter cur rent s afely . Refer to the m an ufa ct ur er's specificat ions.
Use only j umpe r cab les with
insulated te rmi nal clamps wh ich are
distinct ly marked :
plu s(+) cable i n most cases colored red
minus (-) cable i n most cases colored black .
& WARNING
Batterie s contain el ectricity, acid, and gas . Any of the se can cause
very serious or fatal injury. Follow the inst ructions below for safe
handling of your vehicle 's battery.
• Always shield your eyes and avoid leaning over the battery
whenev er po ssible .
• A discharged battery can freeze at temperatures just below
32 °F (0 °C ). Before connecting a jumper cable, you must thaw the
frozen battery completely, otherwise it could explode.
• Do not allow battery acid to contact eyes or sk in . Flush any
contacted area with water immedi ately .
• Improper use of a booste r battery to start a vehicle may cause
an explosion .
• Vehicle batteries generate e xplosive gases. Keep sparks, flame
and lighted cigarettes away from batterie s.
• Do not try to jump start any vehicle with a low acid level in the
battery.
• The voltage of the booster battery must also have a 12-Volt
rating. The capacity (Ah) of the booster battery should not be
lower than that of the discharged battery . Use of batteries of
different voltage or substantially different "Ah " rating may cau se
an e xplosion and personal injury.
• Never charge a frozen battery . Gas trapped in the ice may cause
an explosion.
• Never charge or use a battery that has been frozen. The battery
case may have be weakened .
• Use of batteries of different voltage or substantially different
capacity (Ah) rating may cause an explosion and injury . The
capacity (Ah) of the booster battery should not be lower than that
of the discharged battery. .,_

_____________________________________________ E_ m___;, e_r-=g ~ e_ n_c,_:!y:.__: s_i:..:t ..:..u :..:a;;,. t.:.; i...: o :..: n...:..:. s _ __,J_
& WA RNING (co ntinued )
• Before you che ck anything in the engine compartment , always
read and heed all WARNINGS~
page 267, "Engine compart­
ment ".
0 Note
• App lying a higher vo ltage booster battery will cause expensive
damage to sens itive e lec tron ic components, such as contro l units,
re lays, rad io, etc.
• Th ere must be no electrical contac t between the vehicles as othe r­
wise current could a lready start to flow as soon as the posit ive(+)
t erm inals are con nected.
[I] Tips
• Th e discharged ba tte ry mus t be properly co nnecte d to the
vehicle's electrical system . When jump starting or charging the
bat tery, never connec t the negat ive ground cable to the batte ry nega­
tive post because the battery manager system must be able to detect
t he battery's state of charge . Always connect the negative ground
cable to the negative ground post of the battery manage r contro l
unit. •
Vehicle OP-eration
Use of jumper cables
Make sure to conne ct the jumper c able clamps in e xactly
the order described bel ow!
Fig. 232 Engine
c omp artment : C on nec­
t o rs for jum per cable s
a nd ch arger
Fi g. 233 J ump
st arti ng with th e
battery of anot her
ve hicl e:@ disc harged
v ehi cle batt ery ,©
bo oste r batte ry
T he p roced ure descr ib ed below for co nnecting jumper cables
is intended to provide a j ump start for yo ur veh icle.
Vehicle with discharged battery:
- Turn o ff ligh ts an d accessories, move lever o f au tomatic
t ra nsmission to
N (Ne utral) o r P (P ark) and s et parking
brake .
~
Vehicle care Do-it-yourself service iTechnical data

lffl!I.___E_ m_ e_r -=g =- e_ n_c -=y ;..._ s_i_t _u _a _ t_ i_ o _ n_ s ____________________________________________ _
Connect POSITIVE(+) to POSITIVE(+) (red)
- Remove the cover above the jump start connection .
- Open t he red cover on the positive pole~
page 329,
fig. 232.
1. Connect one end of the positive cable (red) on the
jump
start bolt~
page 329, fig. 233 (D (Bolts under red cover
= "positive") of the vehicle to be started @.
2. Connect the other end to the positive terminal @of the
booster battery ®·
Connect NEGATIVE(-) to NEGATIVE(-)
(black)
3. Connect one end to the negative terminal ® of the
booster battery @.
4. Connect the other end of the negative cable (black) to the
jump start bolt© (Bolts with hex head = "negative") of
the vehicle to be started @.
Starting the engine
- Start the engine of the vehicle with the booster battery.
Run the engine at a moderate speed.
- Start engine with discharged vehicle battery in the usual
manner.
- If the engine fails to start: do not keep the starter cranking for longer than 10 seconds. Wait for about
30 seconds and then try again.
- With engine running, remove jumper cables from both
vehicles in the exact
reverse order .
- Close the red cover on the positive pole.
The battery is vented to the outside to prevent gases from entering
the vehicle interior . Make sure that the jumper clamps are well
connected with their
metal parts in full contact with the battery
terminals.
& WARNING
To avoid serious personal injury and damage to the vehicle, heed
all warnings and instructions of the jumper cable manufacturer. If
in doubt, call for road service.
• Jumper cables must be long enough so that the vehicles do not
touch.
• When connecting jumper cables, make sure that they cannot
get caught in any moving parts in the engine compartment.
• Do not bend over the batteries· danger of chemical burns!
• The battery cell locking screws must be tightened securely.
• Before you check anything in the engine compartment, always
read and heed all WARNINGS~
page 267, ''Engine compart­
ment".
0 Note
Improper hook-up of jumper cables can ruin the generator.
• Always connect POSITIVE(+) to POSITIVE(+), and NEGATIVE( -)
to NEGATIVE(-) ground post of the battery manager control unit.
• Check that all screw plugs on the battery cells are screwed in
firmly . If not, tighten plugs prior to connecting clamp on negative
battery terminal.
• Please note that the procedure for connecting a jumper cable as
described
above app lies specifically to the case of your vehicle be ing
jump started. When you are giving a jump start to another vehicle, do
not connect the negative (-) cab le to the negative(-) terminal on the
discharged battery©~
page 329, fig. 233. Instead, securely
connect the negative(-) cable to either a solid metal component that
is firmly bolted to the engine block or to the engine block itself.
If the _,,,