battery AUDI S4 2016 User Guide

Opening and clo sin g
Convenience opening /clos ing
The windows and the power sunroof can be
opened and closed with the mechanical key or
the emergency key.
®
'
l
® '
Fig . 35 Key turns for opening an d clos ing
Convenienc e opening f eature
.,. Use the eme rgency key or pu ll the mechanical
key out of the master key
¢ page 33 .
.,. Insert the key into the lock of the driver's door .
.,. Turn the key to position ¢
fig. 35 ® until all
the windows have reached the desired position
and the power sunroof is open .
Convenience cl osing fea tur e
.,. Use the emergency key or pull the mechanical
key out of the master key
q page 33.
.,. Turn the key in the lock of the driver's door to
the lock position @ until the windows and the
power sunroof are closed
q _&..
For vehicles with Panoramic sliding sunroof*:
When you open or close the Panoramic sliding
sunroof*, the power sunshade will also open or
close.
A WARNING
- Never close the windows and the power s un­
roof inattent ively and without checking -
there is risk of injury.
- Yo u m ust always watch when the w indows
are be ing raised so that no one can be trap­
ped. If you release the key, the closing ac­
t ion is immediately cance led.
- Always read and heed WARNING
9 & in
General description on page 31 .
42
Correcting window regulator malfunction
After disconnecting the vehicle battery, the one­
touch up and down feature must be activated
agam .
... Pull and hold the power window sw itch until
the window is completely closed .
... Release the switch and pull the switch again for
one second.
Sunroof
Operation sliding /tilting sunroof
Applies to vehicles: with sliding/tilt ing sunroof
Fig . 36 Section of headliner: knob for sunroof
Tilting
Requirement: the roof switch m ust be in the @
pos ition
q fig. 36 .
... To t ilt it, briefly press the switch ¢ fig . 36.
... To close it, b riefly pull the switch 9 _&. .
:g N
N
•
" CD m
... To set an intermed iate position, p ress/p ull the
sw itch un til the roof reaches the desired posi­
tion.
Opening /slid ing
... To slide the roof all the way open, tur n the
sw itch to the
(D position.
... To close the s unroof complete ly, turn the
sw itch to @ position
<=? _&..
... To select a setting in between, turn the sw itch
to the desired position.
The sunshade can be opened and closed manual­ l y in any position . W hen opening the sunroof , the
sunshade is a utomatically opened.
After the ignition is switched off, yo u can st ill op­
erate the su nroof fo r abo ut 10 m inutes. As soon .,.

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/! WARNING
The socket and the electrical accessories con­
nected to it operate on ly when the ignition is
switched on. Incorrect usage can lead to seri­
ous injuries or burns. For this reason, children
should never be left unattended in the veh icle
because this increases the risk of injury.
0 Note
- Never connect equ ipment that gene rates
electrical current, such as a solar pane l or
battery charger, to the 12-volt socket. This
could damage the ve hicle's electrical sys ­
tem .
- To avoid damag ing the socket, only use
plugs that fit properly .
@ Tips
When the engine is off and accessories are
still plugged in and are on, the vehicle battery
can sti ll be dra ined .
Storing
General overview
A WARNING
-Always remove objects from the instrument
panel. Any items not pu t away cou ld slide
around inside the vehicle wh ile driving or
when accelera ting or when app ly ing the
bra kes or w hen driv ing around a corner.
- When you are dr iv ing make sure that a ny­
t hing yo u may have pla ced i n the cen ter con­
so le or other sto rage locations cannot fall
o ut into the footwells . In case of s udden
brak ing you would not be ab le to brake, de­
press the clutch or accelerate .
-Any pieces of clothing that yo u have hung
up must not interfere with the driver's view .
The coat hooks are designed only for light­
weight cloth ing . Never hang any clothing
with hard , pointed or heavy objects in the
pockets on the coat hooks . Dur ing sudden
brak ing or in an accident -especially if t he
airbag is deployed -these objects could in­
jure any passengers inside the vehicle.
Seats and storag e
(upholder
Fig. 71 Cen te r conso le : fr ont cuph older
Fig. 72 Rea r a rmrest: rear cupho lder
Opening rea r cupholders
.. To open the cupho lder, press on the symbol ii
® qfig . 72 .
.. To adjust the arm @, sw ing it in the direction
of t he a rrow .
.. Place t he beverage in the holder and release
the arm. The arm swings bac k by i tself and a u­
t oma tically secures the beve rage.
Closing cupholders
.. To close the cupholder, press on the center sec ­
tion between the two arms and push the cu­
pho lder in the slot as far as it wi ll go.
A WARNING
Spi lled ho t liqu id can cause an accident an d
personal injury .
- Never carry any beverage c ontai ners w ith
hot liq uids, such as hot coffee or hot tea, in
t he vehicle whi le i t is movi ng. In case of an
accide nt, sudden brak ing o r other ve hicle
movement, hot liquid co uld spill , ca using
scalding burns. Spilled hot liqu id can also
cause an accident and personal injury.
65

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Selector lever emergency release
Applies to vehicles: with multitronic/5 tronic/tiptronic
If the vehicle's power supply fails, the selector
lever can be released in an emergency.
Fig. 110 Front center console: Remov ing the ashtray insert
Fig. 111 Selector lever emergency release
~ To access the emergency release mechanism,
remove the ashtray insert@ using the release
switch @~fig.110.
~ Loosen and remove the cap in the ashtray
mount .
~ You now have access to a pin. Using a screw­
driver or s imilar object, press the pin down and
hold it in that position
~ fig. 111 .
~ Now p ress the release button and move the se-
lector lever to the N position .
The selector lever can only be moved from the P
position if the key is in the lock and the ignition is
sw itched on. If the power supply fails (for exam­
p le, the battery is discharged) and the vehicle
must be pushed or towed, move the se lector lev­
e r to the N position first using the emergency re­
l ease .
Automatic transmission
97

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0 ::..:: co ..... ..... (D Tips
If the weight-sensing mat in the front passen­
ger seat detects an empty seat, the front air­
bag on the passenger side will be turned off,
and
P ASS ENGER AIR B AG OFF will stay on.
Repair , care and disposal of the airbags
Parts of the a irbag system are installed at many
d ifferent p laces on your Aud i. Installing, remov­
ing, servicing o r repa iring a part in an area of the
vehicle can damage a pa rt of an airbag system
and prevent that system from working properly in a co llision.
There are some importa nt things you have to
know to make sure that the effectiveness of the
system w ill not be impaired and that discarded
components do not cause injury or pollute the
environment.
A WARNING
Improper care, serv icing and repair proce­
dures can increase the r isk of personal injury
and death by preventing an airbag from de­
ploying when needed or deploying an airbag
unexpectedly :
-
-Never cover, obstruct, or change the steer­
ing wheel horn pad or a irbag cover or the in ­
strument panel or mod ify them in any way .
- Never attach any objects such as cupholders
or telephone mountings to the surfaces cov­
er ing the airbag units .
- For cleaning the horn pad or instrument panel, use only a soft, dry cloth or one mois­
tened with plain water. Solvents or cleaners
cou ld damage the a irbag cover or change
the stiffness or strength of the mater ial so
that the airbag cannot dep loy and protect
properly.
- Never repair, adjust, or change any parts of
the airbag system.
- All wo rk on the stee ring wheel, instr ument
pane l, front seats or electrical system (in­
cluding the installation of audio equipment,
cellu lar telephones and CB radios, etc .)
must be performed by a qualified technician
Airb ag sys tem
who has the training and special equ ipment
necessary.
- For any wo rk on the airbag system, we
strong ly recommend that you see your au­
thorized Audi dealer or qualified workshop .
- Never modify the front bumper or parts of
the vehicle body.
- Always make sure that the side a irbag can
inflate without interference:
- Never install seat covers or replacement
upholstery ove r the front seatbacks that
have not been specifica lly approved by
Audi .
- Never use addi tional seat c ushions that
cove r the areas where the side airbags in­
flate.
- Damage to the orig inal seat cove rs or to
the seam in the area of the s ide airbag
module must a lways be repaired immedi­
ate ly by an authorized Aud i dealer.
- The airbag system can be activated only
once . A fter an airbag has inflated, it must
be replaced by an authorized Audi dealer or
qualified technic ian who has the technical
information, t raining and spec ial equ ipment
necessary.
- The airbag system can be deployed only
once . After an airbag has been deployed, it
must be replaced with new rep lacement
parts des igned and approved especially for
your Aud i model version. Replacement of
comp lete airbag systems or airbag compo­
nents must be performed by qualified work­
shops only. Ma ke sure that any airbag serv­
ice act ion is en tered in your Aud i Wa rranty
& Maintenance booklet under AIRBAG RE ­
PLACEMENT RECORD.
- In accidents when an airbag is dep loyed, the
vehicle battery separates the alternator and
the starter from the veh icle electrical sys­
tem for safety reasons w ith a pyrotechnic
circu it interrupter.
- Wo rk on the pyrotechnic c ircuit inte rrupt­
er must on ly be performed by a qu alified
dealer -risk of an acc ident!
- If the vehicle or the circuit interr upter is
scrapped, all applicable safe ty p recautions
must be followed .
151

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0 ::..:: co ..... ..... Starting ability is marked ly improved and the life
of the battery is extended.
Basically, energy management consists of
bat ­
t e ry di agno sis, idl ing curr ent mana gement
and
dy namic en ergy management .
Battery diagnosis
Battery diagnosis continuous ly determines the
state of the batte ry . Sensors dete rm ine battery
voltage, batte ry current and battery tempera­
ture . This determ ines the current state of charge
and the power of the battery.
Idling current management
Idling current management reduces energy con­
sumpt io n while the veh icle is stand ing . With the
i gn it ion sw itched off, it controls the energy sup­
p ly to the various ele ctrical components . Data
from battery diagnosis is considered.
D epending on the battery's state of charge, ind i­
vid ual consume rs a re gradually turned off to p re­
vent excessive discharge of the battery and thus
maintain starting capability.
Dynam ic energy management
While the vehicle is being driven, dynamic energy
management dist ributes the ene rgy generated
accord ing to the needs of the individual compo ­
nents . It regulates cons umption, so that mo re
e lectrica l energy is not being used than is being
generated and ensures an optimal state of
charge for the battery.
@ Tips
- But even energy management cannot neg­
ate the limits of physics. Consider that the power and life of a battery are limited.
- If starting ability is threatened, the indica­
tor light
(•j appears 9 page 16.
What you should know
The highest priority is given to maintaining start­
ing capability.
The ba tte ry is severely taxed in short -d istance
driving, in city traffic and d uring the co ld time of
year. Abundant electrical energy is requ ired, but
Intellig ent Technology
on ly a little is generated . It is a lso critical if the
engine is not running and electrical components
are turned on. In this instance energy is being
consumed but none is being generated.
It is in precisely these situations that you will no ­
tice energy management actively regulating the distribution of energy .
Vehicle stands for an extended period
If you do no t drive your vehicle ove r a period of
severa l days o r weeks, electrical components are
gradually cut back or switched off. This reduces
energy consumption and maintains starting ca ­
pability over a longer period. Some of the con­
venience functions may not operate, such as the interior lights or the power seat adjustment. The
convenience functions will be ava ilable aga in
when you switch on the ignition and start the en­
gine.
With the engine turned off
If you listen to the rad io, for example, with the
engine turned off or use other MMI funct ions,
the battery is being d ischarged .
If starting capab ility is jeopardized due to energy
consumption, a message appears in the MMI dis­
play . The message ind icates that the system will
be switched off automat ica lly in a moment . If
you w ish to continue using the funct ions, you
have to sta rt the eng ine.
With the engine running
Although e lectr ical energy is generated when the
vehicle is being driven, the battery can become
discharged. This happens mostly when little en­
ergy is being generated and a great dea l con­
s u med and the batte ry's state of charge is not
optimal.
T o bring the energy balance back into equilibr i-
um, consumers w hich require espec ia lly large
amounts of ene rgy are tempo rar ily cut back o r
swi tched off . Hea ting systems in particular re-
quire a great de al of energy. If yo u no tice, fo r ex­
amp le, that the heated seats * or the heated rear
window are not heating, they have been tempo ­
rarily cut bac k or switched off. These systems will .,..
183

Intelligent Technology
be ava ilab le aga in as soon as the energy balance
has been restored.
You will a lso not ice tha t engine idle speed has
been inc reased slightly. This is normal and not a
cause for concern. By increasing eng ine idle
speed the additiona l energy required is generat ­
ed and the battery is cha rged .
184

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0 ::..:: co ..... ..... on necessary precautions e.g. co rrosion preven­
tion, maintenance and storage . Pay attention to
addit ional information concerning the battery .
Refer to
c::;, poge 212.
Economical and environ­
mentally-friendly driving
General
Your personal style of driving will determine the
economy of your vehicle, as well as exhaust and
noise levels.
F ue l economy, environmenta l impact, and we ar
on your engine, brakes and tires la rgely depend
on three factors :
- you r persona l dr iving sty le
- operating conditions
- technical lim itations
If you anticipate what you need to do next and
drive economically, you can eas ily cut your fue l
consumption by
10-15 percen t. This section will
g ive you some tips on how you can help the envi ­
ronment and yo ur pocketbook .
(!) Tips
The consumpt ion estimates as published by
ENVIRONMENTAL PROTECTION AGENCY (EPA) and Transport Canada may not cor re­
spond to your actual consumption on the
road, which will va ry depending upon vehicle
load and speed, road and wea ther condi tions,
t rip length, etc.
Drive smoothly and keep a lookout ahead
Vehicles use the most fuel when they are acceler­
ating.
" Avoid unnecessary accelerating a nd braking .
Veh icles use the most fuel when they are acceler ­
ating . If you anticipate what is going to happen
next , you will need to brake less and, thus, accel­
e rate less . let the vehicle coast wheneve r possi ­
b le -fo r example when yo u see that the next traf­
fic light is red .
Driving and the envir onment
Avoid full throttle
Driving at moderate speeds saves fuel and im­
proves your mileage .
"Try and keep well below your car 's maximum
speed.
Acce lerating gently reduces fuel consumption,
engine wear, and does not disturb the environ­
ment.
Fuel consumption, exhaust emissions and engine
noise increase disproport ionately at high speeds.
If you drive at approximately three quarters of
top speed, fuel consumption will be reduced by
one half. Never drive faster than the posted
speed limit and weather cond itions permit .
Reducing unnecessary idling
Even when your car is jus t idling it burns up fuel.
" Shut the eng ine off when you are not driving
the vehicle.
" Do not warm up the vehicle by lett ing the en-
gine run at idle.
It makes sense to shut off the engine in traffic
jams, when waiting for trains to pass at railroad cross ings, or at traff ic lights that have long waits
on red . Turning the engine off for just
30 -40 sec ­
onds saves more f uel than is burned starting the
. . engine again.
It takes a long time for the eng ine to warm up
fully when it is running at idle . However, wear
and noxious emissions are especially h igh when
the engine is warming up . So yo u should dr ive
away as soon as you start the eng ine and avoid
runn ing at high rpms w hile the engine is st ill
warming up .
(D Note
Do not leave eng ine idling unattended after
s tart ing. If wa rning lights sho uld come on to
i ndicate improper operation, they would go
unheeded . Extended idling also prod uces
heat, which could resu lt in overheating or
other damage to the vehicle or other proper­
ty.
187

Checking and Filling
-To reduce the risk of being burned, never
open the hood if you see or hear steam or
coolant escaping from the engine compart­
ment . Wait until no steam or coolant can be
seen or heard before carefully opening the hood.
- Keep children away from the engine com­ partment.
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxiliary
electric fan is temperature controlled and
can switch on suddenly .
- Never open the coolant reservoir cap when
the engine is still warm. The coolant system is pressurized and hot coolant could spray
out.
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the coolant reservoir.
- Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
- If work on the fuel system or the electrical
system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or open
flames. Fluids in the engine compartment could start a fire.
- Keep an approved fire extinguisher imme­
diately available.
- To avoid electrical shock and personal injury
while the engine is running or being started,
never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system .
- If you must perform a check or repair with
the engine running:
- First, fully apply the parking brake, move
selector lever of automatic transmission
204
to "P" (Park); put manual transmission in
Neutral.
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts or
other moving parts, or from contacting hot parts . Tie back hair before starting,
and do not wear clothing that will hang or
droop into the engine.
- Minimize exposure to emission and chemi­
cal hazards
c::> /.1. .
A WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents, and certain vehicle components contain or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and
reproductive harm . In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive 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 hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container or
filler opening, otherwise serious damage to
vehicle systems will occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly . If you
see spots from oil or other vehicle fluids, have
your vehicle inspected by an authorized Audi
dealer.

Check ing and F illing
The brake fluid rese rvoir is located at the rear
partition of the engine compartment on the l eft
side ¢
page 205 .
The fl uid level may drop slightly after some time
due to the automatic adjustment of the brake
pads . This is not cause for alarm.
If th e b rake fl uid level fa lls considerably be low
the "M IN" mark, the b rake warning/ind icator
lig ht ( U.S. mode ls :
1111 , Canadian models:. )
will come on ¢
page 15. Do not contin ue to oper ­
ate the vehicle . T he comp lete brake system
should be thoroughly checked by an authori zed
Aud i dealer or qualified workshop and the cause
corrected . If the brake flu id level is too low, the
b rake warning/indicator light will i llum inate.
Contact a n author ized Audi dealer
immediately .
{D) Tips
The brake fluid reservoir is located under­
neath the cover .
Changing brake fluid
Have the brake fluid changed by an experienced
technician .
Brake fluid absorbs mo isture from the air. If the
water content in the b rake fluid is too high, cor­
rosion in the brake system may resu lt afte r ape ­
riod of t ime. The boiling poi nt of the brake flu id
will also decrease cons iderably and decrease
b raking perfo rman ce.
Therefore, the brake fluid must be changed
every
two year s.
Always use new brake fluid wh ic h con­
forms to Fede ral Motor Veh icle Standard "FMVSS
1 16 DO T 4".
The brake fluid reservoir can be diff icult to reach,
therefore, we recommend that yo u have the
brake fl uid changed by yo ur autho rized
Audi
dealer .
Your dealer has t he corre ct tools, t he
right brake fluid and the know-how to do this for
you.
A WARNING
- Brake fluid is poisonous. It must be stored
only in the closed orig inal container out of
the reach of chi ldren!
212
- Bra ke fa ilure ca n result from old or inapp ro­
priate brake fluid . Observe these precau­
tions:
- Use only brake fluid t hat meets SA E speci­
fi ca ti on
J 170 3 and con forms to Federa l
Motor Ve hicle Standard 116 . Always check
wi th yo ur autho rized Audi dea le r to make
s ur e yo u are using the correct brake fluid .
The correct type of brake flu id is also ind i­
cated on the b rake fluid reservo ir .
- The brake fluid m ust be new . Heavy use of
the brakes can cause a vapo r lock if the
brake fluid is left in the system too long .
This can se riously affect the efficiency of
the b rakes as well as your safety . This
could resu lt in an accident .
(D Note
Brake fluid will damage the paint of your veh i­
cle.
@ For the sake of the environment
Because of the problem o f proper d isposa l o f
brake fluid as well as the spec ial too ls re­
q ui red a nd the necessary expertise, we rec­
omme nd that you have the bra ke f luid
changed by yo ur autho rized Aud i dea le r.
Battery
, General information
U nder normal operating condit ions, the battery
i n your Audi does not need any maintenance.
With
high outside temperatures or long daily
drives we recommend that you have the elect ro ­
lyte level c hecked by an au thorized Aud i dealer o r
qualified workshop. The electro lyte level shou ld
a lso be che cked each time the battery is c ha rged
~ page 214.
Have the batte ry chec ked when you take yo ur ve­
hicle in for service. You are we ll adv ised to re­
pla ce a battery tha t is older than 5 yea rs.
With certain types of airbag deployment, t he
batte ry is d iscon nected from the ve hicle electri­
ca l system for safety reasons ¢.&.
in Repair, care
and disposal of the airbags on page 151. .,.

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0 ::..:: co ..... ..... Disconnecting the battery terminals
Some vehicle func tion s (p ower w indow reg ula­
tors, for example) are lost i f th e battery termi ­
na ls are d isconnected. These functions have to be
relearned afte r the battery termina ls are con­
nected aga in. To prevent th is, the batte ry shou ld
only be disconnected from the vehicle e lectr ica l
system w hen abso lute ly necessary for repairs.
Vehicles not driven for long periods
If yo u do not drive you r vehicle over a period of
seve ral days or weeks, e lectrical components a re
g radually c ut back or sw itched off. This reduces
e nergy consumption and ma inta ins starting ca ­
pability over a longer pe riod
c> page 182.
Some o f the conven ience f unctions may not ope r­
ate, s uch as the inte rior lights or the power seat
ad justment. The convenience functions will be
ava ila ble aga in whe n you tu rn o n the ignition and
start the engine .
Winter operation
During the winter months, battery capacity tends
to dec rease as temperatu res dr op. This is be­
cause more power is also consumed wh ile start ­
in g, and the head lights , rear wi ndow defogge r,
etc., are used more of ten .
Avoid un necessa ry power consumption, part icu­
l arly in city traffic or when t rave ling on ly short
d ista nces . Let your authorized Audi dealer check
the capaci ty of the vehicle battery be fore w inte r
sets in
r=;, pag e 214. A well cha rged batt ery w ill
n o t onl y preven t st arti ng p roble ms w hen the
wea ther is cold, but will also last l on ger .
(D Tips
If your v ehicle is left stand ing fo r se ve ral
wee ks at extre mely low tem per at ures, the ve­
hicle b attery sh ould be re moved and stor ed
w here it will not free ze . Th is will preve nt i t
from being dama ged and hav ing to be re ­
placed .
Checking and Filling
Working on the battery
Be especially careful when working on or near
the battery.
The battery is located in the luggage compart ­
ment under the floor. Befo re you check anything
i n the luggage compart ment ,
read and heed all
WARNINGS
c> &_ .
Always heed the safety warnings , when working
o n the veh icle batte ry or t he ve hicle elec trical
system to prevent in jury .
The following WARNINGS are very important
when working on the battery :
Always heed the following WARNING SYM-
BOLS and safety precautions when wo rking on
the battery.
®
Always wear eye protection.
A
Battery acid contains sulfuric acid. Al-
ways wear gloves and eye protection.
@
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 reach
of children.
A WARNING
= -
Whenever working on t he battery or on the
e lectr ica l system, the re is the r isk of injury,
accide nt a nd eve n fire. Read and he ed the fol­
l ow ing W AR NIN GS:
- Always wear eye protection. Do not let bat­
tery acid or any l ead particles ge t on you r
skin o r clothing. Shield yo ur eyes. E xplosiv e
g ases can ca use b lindne ss or other in jury.
- Ba tte ry acid contai ns sulfur ic acid. Sulfu ric
acid can ca use blindness and s evere burns.
- Always wea r gloves and eye protection . Do
n ot tilt t he batte ry because aci d could lea k
out of the ventilation openings. ""
213