2018 AUDI S4 maintenance

Opening and closing
Key set
Fig. 23 Your veh icle key set
@ Remote control key with integrated
mechanical key
You can unlock/lock your veh icle w ith the remote
control key . A mechan ical key is integrated in the
remote control
key ~ page 39.
@ Key fob with vehicle code
Appl ies to veh icles with A udi co nnect vehicle con trol
Open the key tag and scratch to reveal the veh icle
code . You can unlock the Audi connect vehicle
control se rvices* for your vehicle with this vehicle
code . For additional information, see
~ page 198 .
Replacing a key
If a key is lost, see an authorized Audi dealer or
authorized Audi Service Facility. Have
this key de­
activated .
It is important to bring all keys with
you .
If a key is lost, you should report it to your
insu rance company.
Number of keys
You can check the number of keys assigned to
your vehicle in the Infotainment system . To do
this, select the
IM ENU I button > Vehicle > left
control button
> Service & checks> Vehicle in·
formation . This way, you can make sure that you
have all the keys when purchasing a used vehicle.
Electronic immobilizer
The immob ilizer prevents unauthorized use of
the vehicle .
Under certain circumstances, the vehicle may not
be able to start if there is a key from a different
veh icle manufacturer on the key chain.
38
Data in the master key
When dr iving, service and maintenance-re levant
data is continuously stored in your remote con­
trol key. Your A udi service advisor can read out
this data and tell you about the work your vehicle needs . This applies also to vehicles with a con­
venience key*.
Personal convenience settings
If two people use one vehicle, it is recommended
that each person always uses "their own" master
key . When the ign ition is turned off or when the
vehicle is locked, personal convenience settings
for the following systems are stored and as­
s igned to the remote master key.
- Climate control system
-Steering wheel heating*
-Central lockin g system
-Interior lighting*
-Exter ior lighting
- Rain sensor
- Memory function*
- Park ing a id *
-Adaptive cr uise control *
-Active lane assist*
-Side assist*
-Traff ic jam assist*
- Distance warning*
-Audi pre sense*
- Speed warning *
The stored settings are automatically recalled
when you unlock the vehicle, open the doors or
turn on the ignition .
~ WARNING
Always take the vehicle key with you when
leaving the vehicle, even for a short period of
time. This applies particularly when children
rema in in the vehicle . Otherwise the children
could start the engine or operate electrical
equipment such as power windows .
(© Tips
-
-The operation of the remote control key can
be temporarily disrupted by interference
from transmitters near the veh icle work ing
1J11,

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engaged, for example when you notice that the next traffic light is red . This produces an engine
braking effect, which helps to protect the brakes
and tires and reduces the emissions and fuel con ­
sumpt ion to zero (fuel shut-off dur ing decelera­
tion) .
Shift efficiently
Upshifting earlier is an effective way to save fuel.
Staying in a gear too long uses fuel unnecessari­
ly.
Applies to: vehicles with manual transmission
Shift as soon as possible from first to second
gear. S hifting to the next highest gear at approxi­
mately 2,000 RPMs if poss ible is recommended.
Applies to: vehicles with automatic transmissions
Press down on the acce le rator peda l slowly and
avoid "kick -down".
Avoid full acceleration
You should rarely travel at the maximum vehicle
speed. High speeds cause a disproportionately
high increase in fuel consumption, emissions and
traffic noise. Driving more slowly saves fuel.
Reduce idling time
The Start/Stop system* he lps to reduce the idling
time automatically. In vehicles without the Start/
Stop system*, it is efficient to switch the engine
off when stopped at railroad cross ings and long
r ed lights. Stopping the engine for 30-40 sec­
onds already saves more fuel than the amount of
extra fuel needed to restart the eng ine.
It takes a very long time in idle to warm the en­
g ine up to operating temperature. Wear and
emissions are especially h igh in the wa rm-up
phase . Therefore, you should begi n driving im­
mediately a fter starting the engine . Avoid high
RPMs while do ing this .
Have maintenance performed regularly
By having maintenance performed regu larly on
your veh icle, yo u ca n he lp to reduce f uel con­
sumption before yo u even start to drive. The
maintenance condition of your vehicle not only
affects traffic safety and long-term value but a l-
Driving
so impacts fuel consumption . A poorly main ­
tained engine can lead to fuel consumption that is 10% higher than norma l.
Avoid short trips
The eng ine and exhaust cleaning system must
reach their optimal operat ing temperatu re to ef­
f ectively reduce consumption and emissions.
A cold engine uses a disproportionately high
amount of fue l. The engine reaches operating
temperat ure and consumption normalizes on ly
after approximate ly 2.5 miles (4 km).
Check the tire pressure
To save fuel, make sure the tires are always in­
flated to the correct press ure
~ page 344. The
fuel consumption can increase by 5% if the pres­
s u re is only 0.5 bar too low. Due to the increased
rolling resistance, low tire pressures wi ll also
l ead to greater tire wear and will affect driving
behavior.
Do not drive on winter tires year-round, as this
will consume up to 10% more fuel.
Eliminate unnecessary weight
S in ce eve ry po und of ext ra weight increases f uel
consumption , a quick inspection of the luggage
compartment may be worth it to avoid unneces ­
sary weight .
When not be ing used , a roof rack should be re­
moved to decrease the wind resistance of the ve­
hicle. This will save you approximately 12% fuel
at speeds from 62 -75 mph (100 - 120 km/h) .
Save energy
The eng ine drives the generator, which generates
electric ity; the fuel consumpt io n also incr eases
with the demand for electr icity. The refore, switch
electrical eq uipment off when you no longer
need it . Examples of equipment that uses a lo t of
energy are air blowers at a high setting, the rear
window defogger and seat heating* .
@ Note
Do not leave engine idling unattended after
starting. If warning lights shou ld come on to
indicate improper operation, they would go
81

Driving
unheeded. Extended idling also produces
heat, which could result in overheating or
other damage to the vehicle or other proper­
ty.
(D Note
- Have your vehicle maintained properly and
in accordance with the service recommenda­
tions in your Warranty
& Maintenance book ­
let . Lack of proper maintenance as well as
improper use of the vehicle will impair the
function of the emission control system and
could lead to damage.
- Do not alter or remove any component of the Emission Control System unless ap­proved by the manufacturer .
- Do not alter or remove any device, such as
heat shields, switches, ignition wires,
valves, which are designed to protect your
vehicle's Emission Control System and other
important vehicle components.
(D Tips
The consumption estimates as published by
ENVIRONMENTAL PROTECTION AGENCY (EPA) and Transport Canada may not corre­
spond to your actual consumption on the
road, which will vary depending upon vehicle
load and speed, road and weather conditions,
trip length, etc.
Steering
Adjusting the steering wheel position
The steering wheel position is adjustable up and
down and forward and back.
Fig. 92 S tee rin g col umn : le ver to adjus t the stee ring w heel
posit ion
82
.,. Pull the lever in the direction of the arrow
c::, A -
... Bring the steering wheel into the desired posi­
tion .
.,. Push the lever against the steering column un­
til it is secure .
_&. WARNING
Incorrect use of the steering wheel adjust­
ment and an incorrect seating position can
cause serious injuries.
- Only adjust the steering column when the
vehicle is stationary so that you do not lose
control of the vehicle.
-
-Adjust the driver's seat or steering wheel so
that there is at least a 10 in (2S cm) dis­
tance between your chest and the steering
wheel. If you do not maintain this distance,
the airbag system will not be able to provide
its full protection.
-If your physical characteristics prevent you
from sitting at least 10 in (2S cm) or more
away from the steering
wheel, see if an au­
thorized Audi dealer or authorized Audi
Service Facility can provide adapters that
will help .
- If your face is level with the steering wheel,
the airbag does not provide as much protec­
tion during a collision . Always make sure
that the steering wheel is level with your
chest.
- Always hold the steering wheel with your
hands in the 9 o'clock and 3 o'clock posi­
tions to reduce the risk of injury if the airbag
deploys.
- Never hold the steering wheel in the 12
o'clock position or with both hands on the
rim or the center of the steering wheel.
Holding the steering wheel incorrectly sig­
nificantly increases the risk of injury to the
hands, arms and head if the driver airbag
deploys .

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Backing up is difficult and requires pract ice .
Backing up with a trailer generally requires steer­
i ng action oppos ite to that when backing up your
ve hicle w ithout a trailer.
M ain tain a greater d istance between your vehicle
and the one in front of you. Yo u wi ll nee d more
room to stop. To compensate fo r th e tra iler, yo u
will need a larger than no rmal turn ing rad ius.
When pass ing, remembe r th at you ca nnot accel ­
erate as fast as you norma lly wou ld because of
the added load. Make s ure yo u have eno ugh room
to pass. After passing , allow plenty of room fo r
your tra ile r before changing lanes again.
Avoid jerky starts, s harp turns or ra pid lane
changes .
(D Tips
-Do not tow a trailer during t he br eak -in per i­
o d of yo ur vehicle .
-If you tow a trailer, your Audi may require
more frequent maintenance due to the ex ­
tra load
~ page 3 83.
Parking on a slope
D o not pork on o slope with o trailer . If it canno t
be avoided, do so only ofter doing the following:
When parking:
.. Apply the f oot brake .
.. Have someone p lace chock s under both the ve­
hicle and the tra il e r whee ls .
.. Wi th chocks in p lace, slowly release t he b rakes
u nti l the w hee l chocks absor b the load .
.. Turn the wheels towa rds the curb .
.. Apply the pa rking brake .
.. Move the se lector lever to P (a utomat ic t rans­
mission) respectively select first gear (manual
t ransm iss io n).
When restarting after parking:
.. Apply the foot b rake .
.. Start the engine .
.. Applies to: vehicles with automatic transmis­
sion: Move the selector lever to D/S .
.. Release t he pa rking bra ke and s low ly pull ou t
and away from t he whee l chocks .
Trailer towing
.. Stop an d have someone retrieve the whee l
choc ks.
101

Navigation
Online map update
Applies to: vehicles w ith a nav igatio n system a nd Audi con ­
n ect (I nfotainment)
Using the online map update, you can update
the map material in your navigation system di­
rectly from your vehicle.
F ig. 20 0 Example: d isp lay of a new o nlin e map update
F ig . 201 Example: se lect io n of a cou ntry pac kage
Req uirement:
The requ irements for Aud i connect Infotainment
services must be met
¢ page 188.
You must have a my Audi account and have as­
sig ned your ve hicle to it .
Using your vehicle pos itio n, the M MI identifies
regions which you a re frequently in. Based on
this, the MMI suggests update packages for
these regions, if they are avai lab le.
.,. Se lect and confirm (D Start download
q fig . 200 if the message for a new map update
appears i n the Infota inment system display.
Or :
.,. Se lect I MENU I button> Settings > left co ntro l
button >
System maintenance > System up­
date > Online update .
A selection w ith the availab le update packages
appears in the Infotainment system disp lay
¢fig. 201 .
218
Selecting the online map update
-Sele ct an upd ate p ack age fro m the list(~ )@
.:;, fig . 201.
-Confi rm y our select io n w ith the I BACK I button
a nd go back to the sele ction.
- Th e nu mbe r and amoun t of d ata for the se le ct­
ed upd ate pa ckage are n ow d is pla yed in the In­
fo tainmen t sys tem .
Starting the download
-Select an d confirm Start download .
-Confi rm the secu rity p rompt by selecting Start
download
aga in .
The update packages begin to download and the
status of the down load progress is shown in the
Infotainment system d is p lay.
Installation of online map update s
The downloa ded map material installs after yo u
stop yo ur vehicle . The new update pac kages in­
stall o nly after you switch
off the ign ition. After
restarting the MMI, t he Infotainment system dis­
play i ndicates if the updates insta lled successf ul­
l y .
- Confirm the successful update with
OK .
The new map material can now be used for navi­
gation .
@ Tips
-Alw ays re ad the ch apter¢ p age 1 88.
- Th e am ount o f available onlin e m ap u p-
d at es in th e veh icle i s lim ited. To update
more regions, use the ma p up date v ia SD
card at
www.audiusa.com/myaudi.
- Always read the cha pter¢ p ag e 19 5, Au di
connect (In fo ta inment) genera l inf orma­
tion .

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for the MMI to be visib le to o ther dev ices . Se ­
l ect
Invisible fo r the MMI to not be vis ible to
othe r devices. Howeve r, it is still possib le to es ­
tab lish a Bl uetooth connection w ith paired de ­
v ices when the v is ibility is switched off. Se lect
Off to tur n visib ility off . The n a B luetooth con­
nect io n is no t possible .
-Bluetooth audio player : when this function is
switched
on~ , the Bluetooth aud io player is
available as a source in the
Media menu .
-Bluetooth name : the MMI Bluetooth name (for
example
,,AUDI MM I 2016") is displayed and
can be changed .
Online settings*
- Data usage counter :
the amount of data pack­
ets that are sent a nd received through the MMI
is d is pl ayed . You can reset t he data usage infor ­
mation to zero using the
Reset data counter
opt io n.
- Network status : the mobile netwo rk provider
f o r da ta se rvice as well as t he network status
are disp laye d.
Wi-Fi settings*
See ¢ page 194, Wi-Fi hotspot.
Storing as a default telephone
Applies to: vehicles with telephone
Requ irement: a cell phone must be connec ted to
the M MI
¢ page 175 .
As soo n as the cell phone is i n range and the
B lue too th func tion on t he ce ll phone and in the
M MI is swi tched on, this ce ll phone is given pr io r­
ity over the other Bluetoot h dev ices and is con ­
n ected direct ly to the MMI. The connected cell
p hone is displayed f irst in the device list.
Network settings*
- Login :
you ca n chose an Automatic lo gin to
yo ur cell phone serv ice p rov ider's ne twork, o r
yo u can choose a
Manual login from t he list of
available networ ks.
- Network selection : available networks in t he
p resent location can be se lected unde r networ k
se lection. Th is function is only available for the
Manual login sett ing.
System settings
Apple CarPlay sound settings/ Android Auto
sound settings
Applies to: vehicles with Aud i smartphone interface
See c::> page 2 52.
About Apple CarPlay/ About Android Auto
Applies to: vehicles wi th Audi smartphone interface
Here you w ill fin d leg al informa tio n r egarding
th e use of App le Car Pla y or Andro id A uto an d in­
f o rmat io n a bou t devi ce-s peci fic data exc hange .
Delete CarPlay device/Delete Android Auto
device
A ppl ies to: vehicles with Audi smartphone interface
Req uireme nt: your c ell pho ne mu st n ot be con­
ne cted to t he Au di music in terf ace wi th a US B
adapter .
Se le ct :
Audi smartphone > a d evice from t he list
> r igh t co ntrol button.
T o re mov e your cell p hon e from the list , se lect
and confir m
Delete CarPlay device or Delete An­
droid Auto device .
System update
.. Select: !ME NUI bu tton> Settings > left con trol
bu tton >
System maintenance .
- System update :
slid e the s torage device with
t h e u pdate da ta into the appro priate driv e
¢ page 228 . Sele ct and co nfi rm t he dr ive>
Start update . The leng th o f the pro cess de ­
pe nd s o n th e siz e of the updat e.
- Reset driver installation: the sele cte d medi a
d river p ack age i s reset to t he se ttings at the
t ime o f delivery .
-Version information : info rm ation on t he M MI
so ftwar e ve rsi on and the navig ation datab ase *
so ftware version is displ ayed. The
Software in­
formation
f u nction also prov ides informat ion
on t he softwa re co ntai ned in the M MI and t he
licensing agreement .
251

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Telephone
Applies to: vehicles with telephone
Mute telephone : messages and ring tones are se t
to mute .
Ringtone : see¢ page 185, Ringtone and volume
se ttings .
Ringtone volume :
you can adjust the volume of
the selected ringtone by turning the co ntro l
knob.
Message volume : you can ad just the volume of
the no tifica tion for an i ncoming tex t message by
turn ing t he control knob .
Microphone input level : you can adjust the call
volume during a phone ca ll by tu rning the co ntro l
knob .
Navigation
Applies to: veh icles with navigation system
Voice guidance : see ¢page 213.
Voice guidance during phone call : see
¢page 213.
Voice guidanc e volume : you can adjust the voice
g ui dance vo lume by turn ing t he con trol knob. Or:
you can adj ust the vo ice gu idan ce vo lume durin g
active rou te gu idance by tu rning the On/Off
knob.
Entertainment fader: t he v olume of audi o play­
ba ck can be tempo rarily lowe red when the p ark­
in g system or voi ce g uidance is active.
Voice recognition system
App lies to: vehicles with voice recognition system
Command display : see¢ page 248 .
Short dialog : see¢ page 248.
Volume: see ¢ page 248.
Individual speech training : see ¢page 248 .
Parking aid*
You can ad just the vo lume of the signal tone by
turn ing t he control knob.
3 1) Not avai lab le in all ve hicle s. co
System settings
-Adjusting th e Front volume : select and con­
fi rm
High , Medium or Low .
- Adjusting
the Rear volume : select and con firm
High , Medium or Low .
MMI touch volume*
Yo u can adjus t the vol ume of t he p romp ts fo r the
MM I touch* by turnin g the cont rol k nob.
Restarting the MMI
Fig . 223 Button co mbinatio n to res ta rt t he syste m
.,. Briefly p ress the cont rol knob and both buttons
at the same time to immediate ly open t he
menu upward
<:;> fig. 223 .
Software license
information
Information on the software contained in the
MMI and the license agreement.
- Select : !ME NUI bu tton> Settings > le ft con trol
button >
System maintenance > Version infor ­
mation.
- Or :
online a t www.audiusa.com /softwareinfo .
Information on the software contained in the
head-up display and the license agreement .
-Re quir emen t: the vehicle mus t be sta tion ary.
- Press th e co ntro l knob to close the info rmat ion .
Or : sta rt dr ivin g.
Information on the software contained in the
instrument cluster and the license agreement.
Press t he reset button 10.01 twice within five sec­
onds of switching the ign ition
on.1>
253

Check ing and F illing
I f you must add oi l between oi l changes, use an
oil that matches the Audi oi l quality standard
listed on the st icker. The sticker is located at the
front of the engine
compartment <=> page 325,
fig. 268.
Au di r ec omm end s
ocastrol i/g/g'fE:@t P'r(w.:::-..~J.D,'JAJ..
A udi r ecommends Longli fe high performa nce
e ngin e oil from Audi G enuin e Part s
Using the proper engine oil is important for the
functionality and service life of the eng ine. Your
engine was factory-filled with a h igh-quality oil
which can usually be used throughout the entire
yea r.
0 Note
Your Limited New Vehicle Warranty does not
cover damage o r malfunctions due to failure
to follow recommended maintenance and use
requirements as set fo rth in the Aud i Owner's
Man ual and Warranty
& Maintenance booklet.
- Use only a high qual ity eng ine oi l th at ex-
p ressly complies with the Audi oil q uality
standard specified for your vehicle's engine .
Using any other oil can cause se rious engine
damage .
- Do not mix any lubricants or other additives into the engine oil. Doing so can cause en­
gine damage.
(D Tips
If you need to add oil and there is none availa ­
ble that meets the Audi oi l quality standard
your engine requi res, you may add a total of
no more than 0.5 qt (0.5 l) of a h igh-quality
"synthet ic" o il that meets the following speci­
fications.
- Vehicles with gasoline eng ine: ACEA A3 or
API SM with a viscosity grade of SAE OW-30,
SAE 5W-30 or SAE 5W-40.
- Vehicles w ith diesel eng ine: ACEA C3 or
API CF with a v iscosity grade of SAE OW-30
or SAE 5W-30 .
- For more information about engine oi l that
has been approved for your vehicle, please
contact eithe r your authorized Aud i dealer
or Audi Custome r Relat ions at
326
1 (800) 822-2834 or visit our web site at
www.audi usa .com or www .audicanada .ca.
Engine oil consumption
The engine in your vehicle depends on an ade­
quate amount of oil to lubricate and cool all of
its moving ports.
In order to prov ide effect ive lub ricat ion and cool ­
ing of internal engine components, all internal
combustion engines consume a certain amount
of oil. Oil consumption var ies from engine to en­
gine and may change significantly over the life of
the engine. Typically, engines w ith a specified
break-in period
(see<=> page 80) consume more
o il dur ing the break-in per iod than they consume
after o il consumption has stabi lized .
U nder normal cond itions, the rate of oil con­
sumption depends on the quality and viscos ity of
the oil, the RPM (revolutions per m inute) at
wh ich the engine is operated, the amb ient tem­
perature and road condit ions. Furthe r facto rs a re
t h e amo unt of o il di lution from wate r condensa­
t ion or fue l residue a nd the oxidat ion level of the
oi l. As any engine is subject to wear as mileage
builds up, the oi l consumption may increase ove r
ti me until replacement of worn components may
become necessary.
With a ll these variab les coming into p lay, no
standard rate of oil cons umption can be estab ­
li shed or specified . There is no alternative to reg­
ular and frequent checking of the oil level, see
Note .
If the yellow engine oil leve l warning symbo l El
in the instrument cluster lights up, you should
check the o il level as soon as possible
<=> page 32 7. Top off the o il at your earliest con­
venience
<=> page 32 7.
A WARNING
Before you check anyth ing in the e ngine com­
partment, always read and heed all WARN­
I NGS<=> .&. in Working in the engine compart-
ment on page 323.
1iJ>,