2018 AUDI S4 change battery

Cockpit over view
The short -term memory collects driving informa­
tion from the time the ignition is switched on un­
til it is switched off . If you cont inue driv ing with­
in two hours after switching the ignition off, the
new values are included when calculat ing the cur­
rent tr ip informat ion.
Unlike the short-term memory, the long-term
memory is not erased automat ically. You can se­
lect the time period for evaluat ing trip informa­
tion yourself .
Fuel con sumpti on
The current fue l consumption can be shown us­
ing a bar graph
cc> fig. 14. The average cons ump­
tion stored in the short-term memory is also dis­
played. If the bars are green or the gray tone on
the bars changes (depending on the equipment),
your veh icle is sav ing fuel by the following func­
tion:
- Recupe ration : electrical energy can be stored in
the ve hicle battery when the vehicle is coasting
o r driving downhi ll. The bar will move toward
0 /0.
(D Tips
The date, time of day and t ime and date for­
mat can be set in the Infotainment system
cc>page248 .
Energy consumers
Fig . 15 Inst rume nt cluste r: e nergy cons ume rs
In the En ergy con sumer s view, the othe r equip­
ment that is currently affecting fuel consumption
is listed in the first tab (on-board comp ute r) . The
d isp lay shows up to three ene rgy consumers @
cc> fig. 15. The eq uipme nt using the most powe r is
listed first. If more than three items using power
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are switched on, the eq uipment that is c urren tly
using the most power is disp layed .
A ga uge @ also shows the c urrent tota l con­
s u mption of a ll othe r consumers .
. Radio
Applies to: vehicles with multifunction steering wheel
.,. Press the I MODE i button on the m ultif un ction
s teer ing whee l repeatedly u nti l the Radio/ Me­
dia tab is d isp layed.
Applies to: vehicles with multifunction steering wheel plus
.,. Press the I <11>I button repeatedly until the Ra-
dio/Med ia tab is d isplayed.
.,. Press the left control b utton cc> page 14 .
Depending on veh icle equipment, the following
funct ions may be ava ilable i n the dr iver informa­
tion system .
-Select ing the frequen cy band : select and con ­
firm a freq uency band .
-Selecting a station from the station list : select
and confirm a radio station.
- Select ing a station from the preset s list : select
and confirm
Presets and then a radio station .
-Opening a media sou rce: se lect and confirm
Swit ch to media.
Additional settings
- Sele ct: r ight cont rol b utton> desired entry.
Depend ing on the function se lected, the follow­
i ng additional settings may be possible:
- "Now Playing" screen : see cc> page 226.
Media .
Requirement: a media drive must contain audio/
video files
cc> page 228 .
Applies to: vehicles with multifunction steering wheel
.,. Press the I MODE i button on the mu ltifunction
steer ing whee l repeatedly until the Radio/Me-
dia tab is d isplayed .
.,.

Media
Problem Solution
Audi music inte rface :
the porta- For many ce ll phones or mobile devices, playback is not possible
ble device is not recognized as a when the battery level is too low (less than 5% of its capacity).
source. The mobile device will only be recognized as a source in the MMI
after connecting if the battery charge is sufficient .
Audi music interface: malfunc-The Bluetooth audio player function is switched on. Switch this
tions during audio playback function
off¢ page 250 when you are not using the Bluetooth
through an iPod/ iPhone. audio player.
Audi music interface:
contents Reset the Media settings to the factory default settings
that are changed on a mobile de-
¢page 249.
vice connected to the Audi music
interface
al are not disp layed in
the media center.
AUX input: there is stat ic when When connecting and disconnecting, the External audio player
connecting and disconnecti ng the source is already selected. Before connecting or disconnecting the
AUX connection cable. mobile device, either mute the device
(see¢ page 252) or sw itch
to a different audio sourc e (fo r
example ¢ page 222, Opening the
radio).
Bluetooth audio player* /Wi-Fi Only one interface should be act ively used at a time to ensure
audio player*: audio playback in- problem-free playback.
terference.
Jukebox*: tracks on the imported When importing playlists, all of the fi les themselves must be im-
playlist are grayed out. ported.
Jukebox*: imported tracks ca nnot If you cannot find imported tracks in the media center, they may
be played or found. not be supported. Only copy supported
files¢ page 242 to the
Jukebox.
Online media *: connection fa iled To establish a connection to the MMI, the MMI connection switch
between the MMI and the
Audi must be switched on in the Audi MMI connect app status sc reen.
MMI connect app.
Audi music interface: contents Reset the Media settings to the factory default settings
that are changed on a mob ile de-
¢page 249.
vice connected to the Audi music
interface are not displayed in the
med ia center .
Bluetooth audio player *: interfer- Playback interference can occur when using the Bluetooth audio
ence with track d isp lay and aud io player if a music player app from a third party provider is open.
playback. Audi recommends using the integrated media player on your Blue-
tooth device (such as a smartphone) .
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-For safety reasons in severe accidents, the
alternator and starter are separated from
the vehicle battery with a pyrotechn ic circuit
interrupter.
-Work on the pyrotechnic circ uit interrupt ­
er must only be performed by
a qualified
technicians who have the experience, in ­
formation and special tools necessary to
perform the work safely.
-I f the vehicle or the circuit interrupter is
scrapped, all app licab le safety precautions
must be followed .
@) For the sake of the environment
Undeployed airbag modu les a nd pretension ­
ers might be classified as Perch lorate Materi­
al
-special handling may apply, see
www.dtsc .ca.gov/hazardouswaste/perchlo­
rate. When the vehicle or parts of the re­
straint system including airbag modules and
safety belts with pretensioners are scrapped,
all applicable laws and regulations must be
observed. Your authorized Audi dealer is fa­
m iliar with these requi rements a nd we recom­
mend t hat you have you r dealer perform this
service for you.
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced Airbag System performs in a crash . For example, using tire-r im
comb inat ions not approved by Audi, lowering the
ve hicl e, chang ing the stiffness of the suspens io n,
in clud ing the spr ings, suspens ion str uts, shock
absorbers et c. can change the forces that are
measured by the airbag sensors and sent to the
e lectronic contro l unit. Some suspension changes
can, for example, increase the force levels meas­
ured by the sensors and make the airbag system
deploy in crashes in wh ich it would not deploy if
the changes had not been made. Other ki nds of
changes may reduce the fo rce levels meas ured by
the sensors and prevent the airbag from deploy­
in g when i t should .
Airbag sys tem
A WARNING
-Changing the vehicle's suspension including
use of unapproved tire-rim combinations can
change Advanced Airbag performance and in­
crease the risk of serious persona l injury in a
crash.
- Never install suspension components that
do not have the same pe rformance charac­
teristics as the components o rigina lly ins tal­
led on your vehicle.
- Never use tire-rim combinations t hat have
not been approved by Audi.
Knee airbags
Description of knee airbags
The knee airbag system can provide supplemen­
tal protection to prop erly restrained front sea t
occupants.
F ig. 2 42 D river 's knee a irbag
The driver knee airbag is in the instrument panel
u nderneath the steering whee l
~fig. 242, the
airbag fo r the p asse nger is at about the same
height in the instr ument pane l underneath the
glove compa rtment.
T he knee airbag offers add itiona l protection to
the driver's and passenge r's knees and uppe r and
lower thigh areas and supp lements the protec­
tion provided by the safety be lts .
If the front airbags deploy, the knee airbags a lso
deploy in fron tal coll is ions when the deploymen t
threshold stored in the cont rol un it is me t
~ page 281, More important things to know
about front airbags.
287

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3 co
Fuse panel © (brown)
4 Audi side assist
8 Smart module (tank)
11 12 Volt battery
12 Homelink
13 Rearview camera, peripheral cameras
14 Right tail lights
16 Right safety belt tensioner
Fuse panel © (red)
No . Equipment
2 Sound-amp
lifier
3 AdBlue heating
5 Trailer hitch (right light)
7 Trailer h
itch
8 Trailer hitch (left light)
9 Trailer h itch (socket)
10 Sport differential
11 AdBlue heating
Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for
you.
It is becoming increasingly more and more diffi­
cult to replace vehicle light bulbs since in many
cases, other parts of the car must first be re­ moved before you are able to get to the bulb.
This applies especially to the light bulbs in the
front of your car which you can only reach
through the engine compartment.
Sheet metal and bulb holders can have sharp
edges that can cause serious cuts, parts must be
correctly taken apart and then properly put back
together to help prevent breakage of parts and
l ong term damage from water that can enter
housings that have not been properly resealed.
For your safety, we recommend that you have
your author ized Audi dealer replace any bulbs for
you, s ince your dealer has the proper tools, the
correct bulbs and the expert ise.
Fuses and bulbs
Gas discharge lamps (Xenon lights) :
Due to the high e lectr ical voltage, have the bulbs
replaced by a qualified technician. Headlights
with Xenon light are identified by the high volt­
age sticker .
LED headlights*
LED headlights require no maintenance. Please
contact your authorized Audi dealer if a bulb
needs to be replaced .
.&, WARNING
Changing Xenon lamps without the necessary
equipment can cause serious personal injury.
- Bulbs are pressurized and can explode when
be ing changed. Potential risk of injury!
- On veh icles equipped with gas discharge
bu lbs (Xenon light) life-threatening injuries
can resu lt from improper handling of the
h ig h-vo ltage portions of such lamps!
- Only your authorized Audi dealer or quali­
fied workshop should change the bulbs in
gas discharge lamps. There are parts with
sharp edges on the openings and on the
bulb holders that can cause serious cuts. If
you are uncertain about what to do, have the work performed by an authorized Audi
dealer or qualified workshop. Ser ious per­
sonal injury may result from improperly per­
formed work.
(D Tips
- If you st ill prefer to replace the light bulbs
yourself, be aware that the engine compart­ ment is a hazardous area to work
in¢ A in
Working in the engine compartment on
page 323.
- It is best to ask your authorized Audi dealer
whenever you want to change a bulb .
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