2015 AUDI S7 battery capacity

M N <( (.J
'SI: ,...., \!) ..,.,
,...., ..,., ,....,
Winter t ire s
When driving in the w inter, your vehicle w ith
all-wheel drive has an advantage, even with
regular tires. In winter road conditions it may
be advisable to mount winter tires (or all-sea­
son tires) for improved driveability and brak­ ing: these tires must be mounted on
a ll fo ur
wheels .
See also c:> page 267, Winter tires.
Tire chain s
Where tire cha ins are mandatory on certain
roads, th is normally a lso applies to vehicles
with all-wheel drive
c> page 268, Snow
chains.
Re placing wh eels/ tire s
Vehicles w ith all-wheel drive must a lways
have tires of the same size. Also avoid tires
with different tread depths. For details see
page
c:> page 260, New tires and replacing
tires and wheels .
Off-Road dri ving ?
Your Audi does not have enough ground clear­
ance to be used as an off-road vehicle. It is
therefore best to avoid rough tracks and un­
even terrain as much as possible. Also refer to
c:>page204.
A WARNING
Always adjust your driving to road and traf­
fic condit ions . Do not let the extra safety
afforded by all-wheel dr ive tempt you into
taking extra risks.
- Although the all-wheel dr ive is very ef­
fec tive, a lways remember that braking
capacity is limited by t ire traction. Yo u
should therefore not dr ive at excessive
speeds on icy or slippery road surfaces.
- On wet road surfaces, be careful not to
drive too fast because the front wheels cou ld begin to slide on top of the water
(aquaplaning). If this sho uld occur, you
will have no warning from a sudden in­
crease in engine speed as with a front­
wheel drive vehicle. A lways drive at
speeds wh ich are suited to the road con­
ditions -risk of c rash.
Int ellig ent technolog y 201
Energy management
Starting ability is optimized
Energy management controls the distribution
of electrical energy and thus optimizes the
availability of electrical energy for starting the engine.
If a vehicle with a conventional energy system
is not d riven for a long per iod of t ime, the bat­
tery is discharged by idling current consumers (e .g. immobilize r). In certain circumstances it
can resu lt in the re be ing insuffic ient energy
available to start the engine.
Intelligent energy management in your vehi­
cl e ha ndles the distribution of e lectr ica l ene r­
gy. Start ing ability is markedly improved and
the life of the battery is extended .
Bas ica lly, energy management consists of
ba tter y dia gno sis, id lin g curr ent manage­
ment
and dynamic ener gy manag ement.
Battery di agnos is
Battery diagnosis continuously determ ines
the state of the batte ry . Sensors determine
battery voltage, battery current and battery
tempe rature. This de termines the curren t
state of cha rge and the power of the battery .
Idling current management
Idling current management reduces energy
consumption while the vehicle is standing .
With the ign ition switched off, it controls the
energy supply to the various electrica l compo ­
nents. Da ta fr om ba ttery d iagnos is is cons id ­
ered.
Depend ing on the batte ry's state of cha rge,
individ ual cons ume rs a re g radually turned off
to prevent excessive discharge o f the battery
and th us maintain star ting capability.
Dynamic energy management
While the vehicle is being dr iven, dynamic e n­
ergy ma nagement distr ibutes the energy gen­
erated a ccord ing to the needs of the individ u-
al components . It regulates consumpt ion, so
that more e lectrical energy is not being used .,.
•
•

M N <( (.J
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
@ For the sake of the environment
Because of the pr oblem of proper d isposa l
of brake flu id as we ll as the special tools
requ ired and the necessary expert ise, we
recommend that you have the brake fluid
changed by your author ized Audi dealer .
Battery
General information
Under normal operating conditions, the bat­
tery in your Audi does not need any mainte ­
nance. With
high outside temperatures or
long daily dr ives we recommend that you have
the electro lyte level checked by a service fa­
cility . The electrolyte level shou ld also be
checked each time the battery is charged
¢ page 237.
Have the battery checked when you take your
ve hicle in for service . You are well adv ised to
replace a battery that is older than 5 yea rs .
W ith certa in types of a irbag deployment, t he
b attery is d isconnected from the vehicle elec­
tr ica l system for safety reasons¢.&.
in Re ­
pair, core and disposal of the airbags on
page 163.
Disconnecting the battery terminals
Some vehicle functions (power w indow regu­
lators , for example) are lost if the battery ter­
m inals a re d isconnected. These func tions have
to be re lea rned after the batte ry term inals a re
connected agai n. T o prevent this , the bat tery
should only be d isconnec ted from the vehicle
e lec tric al system when absolu tely necessa ry
for repairs .
Vehicles not driven for long periods
If you do not drive you r vehicle over a period
of severa l days or weeks, elec trical compo­
nen ts are gr adually cut b ack o r swi tched off .
This redu ces energy cons umption and main­
tains starting capab ility over a longer per io d
¢ page 201. Some of the co nvenience func­
tions may not operate, s uch as the inte rior
lights or power seat adjustme nt. The conven-
Checkin g and fillin g 235
ience funct ions w ill be available again when
yo u sw itch on the ign ition and start the en­
gine.
Winter operation
D ur ing the w inte r mon ths, bat tery ca pa city
tends to decrease as tempera tures drop . This
is beca use more power is a lso consumed wh ile
starting, and the headlights, rear window de­
fogger, etc., are used mo re often.
Avoid unnecess ary powe r consumpt ion, pa r­
ticu lar ly in city traffic o r when traveling only
sho rt distances. Let yo ur authorized A udi
dealer check the capacity of the vehicle bat ­
tery before w inter sets in¢
page 23 7. A well
charged battery will no t on ly prevent star tin g
problems w hen the weather is cold, but w ill
also last longer .
@ Tips
If your vehicle is left standing for seve ral
weeks at extremely low temperatures, the
vehicle battery s hou ld be removed and
stored where it will not freez e. This will
p reve nt it from be ing dam aged and having
to be repl aced .
Working on the battery
Be especially careful when working on or near
the bat tery.
The battery is located in the luggage compar t­
ment under the floor . B efo re you che ck any­
thi ng in the luggage compartment,
read and
heed all WARNINGS
¢ .&, .
Always heed the safety warnings , when work­
i ng on the veh icle batte ry or t he vehicle e lec­
t rical sys tem to p reven t inju ry.
The following WARNINGS are very
important when working on the battery:
Always heed the following WARNING SYM· BO LS and safety precautions when working
on the battery .
®
Always wear eye protection.
•
•

238 Check ing and filling
cracked an d weake ned when the battery
froze.
- Charge the battery in a we ll ventilated
area. Keep away from open flame or elec­
trical spark. Do not smoke. Hydrogen gas
generated by the battery is explosive.
- To reduce the danger of explosion, never
connect or disconnect charger cables
wh ile the charger is operating.
- Fast charg ing a battery is dangerous and
should only be attempted by a compe­
tent technician w ith the proper equip­
ment.
- Battery acid that may spill during charg­
ing should be washed off w ith a solution
of warm water and baki ng soda to neu­
t rali ze the acid.
~ Note
Never use a fast charger as a booster to
start the engine. This will seriously dam­
age sensitive el ect ronic components, such
as co ntrol units, relays, rad io, etc., as we ll
as th e batte ry charge r.
Battery replacement
The new battery must have the same specifi­
cations and dimensions as the original equip­
ment battery.
I ntell igent energy management in your vehi­
cle is respo nsible for d ist ributing the electr i­
cal energy throughou t you r vehi cle
~ page 201. The inte lligen t energy manage­
ment system w ill keep the engine battery
charged better than vehicles without t his sys­
tem . To make sure the additional electrical en ­
ergy is available once again after you have
changed the battery, we recommend that you
install batteries of the same type and manu­
facture only (the same as those installed at
the t ime your vehicle was delivered). Specifi­
cations a re listed on the battery hous ing. You r
author ized de aler m ust code the battery in
the energy management system to enable yo u
to use the energy managemen t fu nctions co r­
rectly after replacing the battery. T
he new battery must have the same capacity,
vo ltage ( 12-volts), amperage, construction
and plug sealing.
When ins tall ing t he battery, make su re the ig­
nition and a ll elect rical consume rs are switch ­
ed off.
(D Note
Make sure the ven tilat ion hose on the side
of the ba ttery is connecte d, otherwise
fumes or batte ry acid can lea k out .
- Ve hicles with the Start-S top-System * are
equip ped with a spec ial cycle-proof AGM
battery . Install ing a d iffe rent type of
battery can cause problems in the vehi­
cle e lectr ica l system. Whe n replac ing the
vehicle battery, always install one w ith
t he same specifications as the o rigi na l
battery.
@) For the sake of the environment
Because of the prob lem of proper disposal
of a battery, we recomme nd your author­
i zed Audi dealer change the battery fo r
you. Batteri es contain sulfur ic acid and
l ead and must a lways be di spo sed o f prop­
erly in comp liance wi th all envi ronmental
regulations. Disposing of vehi cle batter ies
imprope rly is very dange rous to the envi­
r onment.
Windshield/headlight*
washer container
F ig . 1 99 Engine compartment: cover on the windshield
a n d headl ight * was her fl ui d reservo ir
ll>

M N <( (.J
'SI: ,...., \!) ..,.,
,...., ..,., ,....,
Emergency situations
General
This chapter i s intended for trained emer­
gency crews and working personnel who have the necessary tools and equipment to
perform these operations.
Starting by pushing or
towing
(D Note
Ve hicles w ith an au tomatic tra nsmission
cannot be started by pus hing o r tow ing.
Starting with jumper
cables
If necessary, the engine can be started by
connecting it to the battery of another vehi­
cle.
If the engine shou ld fail to start because of a
discha rged o r wea k battery, the battery can be
connected to the battery o f
another vehicle,
using a
pair of jumper cables to start the en­
g ine.
Jumper cables
Use only jumper cables of sufficiently la rge
c ross section to carry the starter c urrent safe­
l y. Refer to the man ufacturer's specifications.
Use only jumper cables with
insulated te rm i­
na l clamps wh ic h are d istinctly marked:
plus(+) cable i n mos t cases co lore d red
minu s(-) cable
in most cases colored black .
A WARNING
Batterie s contain e lec tricity, ac id, an d gas.
A ny of these can cause ve ry ser io us or fatal
inju ry. Follow the instructions below f or
safe han dling of your veh icle's b attery .
- Alway s shield you r eyes and avoid lean­
ing over the bat te ry whenever possib le.
- A dis ch arged battery c an free ze at tem­
peratures ju st be low 32 °F ( 0 °C ). Befo re
Emergency situations 285
connecting a jumpe r cab le, you must
thaw the fr ozen battery c omp lete ly, ot h­
erwise it could explode.
- Do not allow battery acid to contact eyes
or skin. Fl ush any contacted area with
wate r immediately.
- Improper use of a booster battery to start a vehicle may cause an explosion.
- Vehicle batter ies genera te exp losive gas­
es. Keep spar ks, flame and lighted c iga ­
rettes away from batte ries.
- Do not try to jump start any ve hicle w ith
a low ac id leve l in the battery.
- The vo ltage of the booste r batte ry m ust
a lso have a 12-volt rating. The capacity
(Ah) of the booster battery sho uld not be
lowe r tha n that of the discharged bat­
tery . U se of batte rie s of d iffe ren t voltage
or substantially diffe rent "Ah" rat ing
may c au se an exp losion and persona l in­
JU ry.
- N ever cha rge a fro zen battery. Gas trap­
pe d in the ice may cause a n ex plosion.
- Never cha rge or use a batte ry tha t h as
been fr ozen. T he battery case may have
be weakened.
- Us e of b atter ies of differe nt voltage or
sub stant ia lly diffe ren t ca pa city (Ah) ra t­
i ng may c ause an ex plosion an d injury .
Th e capac ity (Ah) of the booster bat tery
should not be lower than that of the dis ­
charged batte ry .
- Before you chec k any thing in the engine
compa rtment, always read and hee d all
WARNINGS
¢page 225.
(D Note
-App lyin g a higher vo ltage booster ba t­
t ery w ill cause expens ive damage to se n­
sit ive e lectronic com ponents, such as
cont ro l units, relays, rad io, etc.
- The re must be no electrical contact be­
tween the vehicles as ot herwise c urrent
co uld a lready start to f low as soon as the
p o sit ive(+) term inals a re connected. ..,. •
•