2011 AUDI A5 CABRIOLET battery capacity

Intelligent technology
--------------------------------------------------' "---.L=.c=--
Repl acing wheel s/tires
Vehicles wi th all wheel drive must a lways have tires of t he same size.
Also avoid tires with different tread depths. For details see page
=> page 307, "New tires and rep lacing tires and wheels".
Off -Road driving?
Your Audi does not have enough ground clearance to be used as an
off-road veh icle . It is therefore best to avo id ro ugh tracks and uneven
terrain as m uch as possible . Also refer to=>
page 251.
& WARNING
Alway s adju st your driving to road and traffi c conditi ons. Do not
let the ex tra safety afforded by all wheel dr ive tempt you into
taking extra risks.
• Although the all wheel dri ve is ve ry effecti ve, always
remember that braking capacity is limited by tire traction. You
should therefore not dri ve at ex cessive speeds on icy or slippery
road surfaces .
• On wet road surfaces , be careful not to drive too fast because
the front wheel s could begin to slide on top of the water (aqua­
planing ). If th is should occur, you will have no warning from a
sudden increase in engine speed as with a front-wheel drive
vehicle. Always drive at speeds which are suited to the road cond i­
tions -ris k of crash.
n
Controls and equip­
ment Safety first Vehicle operation
Energy management
Starting ability is optimized
E
nergy management contr ols th e distributi on of elec­
tri cal energy and thus optimizes the availabili ty of elec­
tri cal energ y for star ting the engin e.
If a vehicle with a conventiona l energy system is not dr iven for a long
per io d of time, t he battery is di sch arged by idling cur rent consume rs
(e .g. immob il izer) . In certain c ircumstances it can result in there
being insuffic ien t energy av a ilab le to start t he eng ine .
Inte lligent energy management in your ve hicle hand les the d istribu ­
tion of e lectrical energy . Starting ability is ma rkedly improved and
the l if e of the battery is extended.
Bas ically, energy management consists of
battery d iagnos is, idling
current management
a nd dynamic energy management .
Battery diagnosis
Battery d iagnosis con tinuously dete rmines the st ate o f the batte ry.
Sensors determ ine battery vo ltage, battery current and battery
t empe ra ture. This de termine s the cur rent sta te of cha rge and the
power of the battery.
Idling current management
I d ling current management reduces energy consumption wh ile the
vehicle is s tanding. W ith t he igni tion swi tched off, it con trols the
energy supply to the var io us electrical components. Data from
b att ery diag nosis is considered .
Depend ing on the battery 's state of charge, individual consumers a re
gradually t urned off to p revent excessive discha rge of the battery and
thus main tain start ing capab ility.
Dynamic energy management
Whi le the vehicle is being dr iven , dynamic energy management
dis tributes the energy generated a cco rding to the needs o f th e in di-
Vehicle care Do-it-yourself service Technical data

___________________________________________ C_ h_e _c _k_ i_n ~g_ a_n_ d_ f_ i_ll _i_n _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 electrica l system for safety reasons~
& in "Repair,
care and disposal of the airbags" on
page 213.
Disconnecting the battery terminals
Some vehicle funct ions (power window regulators, for example) are
lost if the battery terminals are disconnected. These functions have
to be relearned after the battery termina ls are connected aga in . To
prevent this, the battery should only be disconnected from the
vehicle electr ica l system when absolute ly necessary for repairs.
Vehicles not driven for long periods
If you do not drive your veh icle 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 ove r a
longer period
~ page 247.
Take into consideration that when you unlock your vehicle, some
convenience functions, such as the master key remote function or
powe r seat adjustment, may not be available. The convenience func ­
tions will be available again when you turn on the ignition and start
the engine.
Winter operation
During the winter months, battery capacity tends to decrease as
temperatures drop. This is because more power is also consumed
while starting, and the headlights, rear window defogger, etc., are
used more often .
Avoid unnecessary power consumption, particu larly in city traffic or
when travel ing only short distances. Let your authorized Audi dealer
check the capacity of the vehicle battery before winter sets in
~ page 293. A well charged battery will not only p revent start ing
problems when the weather is cold, but will also last longer.
Safety first
(I] Tips
If your vehicle is left standing for several weeks at extremely low
temperatures, the vehicle battery shou ld 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 anything 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. .,_
Vehicle care Technical data

Checking and filling IJl!II
--------------------------------------------=------- =------
<£> For the sake of the environment
Because of the problem of proper disposal of a battery, we recom­
mend your authorized Audi dealer change the battery for you.
Batte ries contain sulfuric acid and lead and must always be disposed
of properly in compliance with all environmental regulations.
Disposing of vehicle batter ies improperly is very dangerous to the
environment. •
Windshield/headlight washer
container
Fig. 226 Engine
co mp artmen t: Wind­
sh ield and headlight*
washer fluid container
The washer fluid container is marked with the symbol Q on
its cap.
- Before you check anything in the engine compartment,
always read and heed all WARNINGS => & in "Working
in the engine compartme nt" on
page 280 .
-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.
Vehicle OP-eration
You can find the reservoir capacity in the table in::::, page 342.
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 windshie ld washer reservoir .•
Vehicle care Do-it-yourselt service iTechnical data

-~_T_ ir_e_ s_ a_ n_ d_ w_ h_e_ e_ ls _______________________________________________ _
Groove
means the space between two adjacent tread ribs.
Load rating (code)
means the maximum load that a tire is rated to carry for a given infla­
tion pressure. You may not find this information on all tires because
it is not required by law.
Maximum load rating
means the load rating fo r a tir e at the maximum permissible inflation
pressure for that tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure to which a tire may be
inflated. Also called "maximum inflation pressure."
Normal occupant weight
means 150 lbs. (68 kilograms) times the number of occupants seated
in the vehicle up to the total seating capacity of your vehicle.
Occupant distribution
means distr ibution of occupants in a vehicle .
Outer diameter
means the overall diameter of an inflated new tire.
Overall width
means the linear distance between the exteriors of the sidewalls of
an inflated tire, including elevations due to labeling, decorations, or
protective bands or ribs.
Ply
means a layer of rubber -coated paralle l cords.
Production options weight
means the combined weight of those installed regular production
options weigh ing over 5 lbs. (2.3 kg) in excess of those standard
items which they replace, not previously considered in curb weight or
accessory weight, including heavy duty brakes, ride levelers, heavy
duty battery, and specia l trim .
Radial ply tire
means a pneumatic tire in which the ply cords that extend to the
beads are laid at substantially 90 degrees to the centerline of the
tread .
Recommended inflation pressure
see=> page 297, "Cold tire inflation pressure".
Reinforced tire
means a tire design to operate at higher loads and at higher inflation
pressures than the corresponding standard tire. Reinforced t ires may
be identified as "XL ", "x l", "EXTRA LOAD", or "RF" on the sidewall.
Rim
means a metal support for a tire or a tire and tube assembly upon
wh ich the tire beads are seated .
Rim diameter
means nominal diameter of the bead seat . If you change your wheel
size, you w ill have to purchase new tires to match the new rim diam­
eter .
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between rim flanges.

Emergency situations --------------=----Efffll
Emergency situations
General
This chapter is intended for trained emergency crew s and working
personnel who ha ve the necessar y tools and equipment to perform
the se operations . •
Starting by pushing or towing
(D Note
Vehicles with an automatic transmis sion cannot be started by
pushing or towing .•
Starting with jumper cables
If necess ary, the engine can be started by connecting it to
the battery of an other vehicle .
If the engine shou ld fai l to start because of a discharged or weak
battery, t he battery can be co nnecte d to the battery of
another
vehicle, using a pair of jumper cable s to start the engine .
Jumper cables
Use only jumper cables of suffic ient ly large cross section to carry the
sta rter cur ren t safely . Refe r to the manufacture r's specifications.
Use on ly j umper cab les with
insulated te rm ina l clamps w hich are
distinct ly marked :
plus(+) cable in most cases colo red red
minus (-) cable i n most cases colored black.
Safety first
& WARNING
Batterie s contain electricity, acid, and gas . Any of these 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
whenever possible.
• 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 skin . Flush any
contacted area with water immediately .
• Improper use of a booster battery to start a vehicle may cause
an e xplosion.
• Vehicle batteries generate e xplos ive gases. Keep spa rks, flame
and lighted cigarettes away from batteries.
• Do not try to jump start any vehicle with a low acid level in the
battery.
• The voltage of the booster battery must also h ave a 12 -Volt
rating. The capacity (Ah) of the booster battery should not be
lower than that of the discharged battery. Use of batter ies of
different voltage or sub stantially different "Ah " rating may cau se
an explosion and personal injury.
• Never charge a frozen battery . Ga s trapped in the ice may cause
an e xplosion.
• 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. _..
Vehicle care Do-it-yourself service Technical data