maintenance AUDI S4 2018 User Guide

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Consumer Information
Warranty coverages
Y our Audi is co vered b y the following war ran­
tie s:
- New Vehicle Limited Warranty
- Limited Warranty Against Corrosion Perfora-
tion
- Emissions Control System Warranty
- Emissions Performance Warranty
- California Emissions Control Warranty (USA
vehicles only)
- California Emissions Performance Warranty
(USA vehicles only)
Detailed information regard ing your warranties
can be found in yo ur
W arranty & M ainten ance
bookl et.
Operating your vehicle
outside the U.S.A. or
Canada
Government reg ulations in the Un ited States and
Canada require that automobiles meet specific
emission regulations and safety standards.
Therefore, vehicles built for the U .S.A. and Cana­
da d iffer from vehicles sold in other countries.
I f you p lan to take your vehicle outside the conti­
nenta l limits of the United States or Canada,
there is the poss ibility that:
- u nleaded fue ls for vehicles with cata lytic con­
verter may not be available;
- fuel may have a considerably lower octane rat­
i ng . Imprope r fuel may ca use engine damage;
- service may be inadequate due to lack of p roper
service facilities, tools or testing eq uipment;
- r eplacement parts may not be readily ava ilable.
- Navigat ion systems for veh icles built for the
U .S .A . and Canada will not necessa rily work in
Eur ope, and may not wo rk in other countries
o utside of North Amer ica.
Consumer Inf ormation
(D Note
Audi cannot be respons ible for mechanical
damage that could resu lt from inadequate
fuel, service or parts ava ilability.
Audi Service Repair
Manuals and Literature
Audi Official Factory Service Manuals and L itera ­
ture are published as soon as poss ible after mod­
el i ntroduction. Service Ma nua ls and literature
are avai lab le to order from the Audi Tec hni cal Lit ­
erature Orde ring Center at :
www.audi.t e chlit eratur e.com
Maintenance
General
Your vehicle has been designed to he lp keep
maintenance requirements to a min imum. How­
ever, a certain amount of regular maintenance is
still necessary to assure your veh icle's safety,
economy and reliab ility . For detailed vehicle
maintenance consult your Wa rranty
& Mainte­
nance boo klet .
Und er diff icult op erating condition s, for exam­
ple at extremely low outside temperatures, in
very dusty regions, when towing a trai le r very fre­
quently, etc., some se rvice work shou ld be pe r­
fo rmed between the in terv als specified. This ap ­
plies particularly to:
- oil changes , and
- cleaning or replac ing the a ir filter .
(® For the sake of the environment
By regularly maintain ing your vehicle, you
help make sure that emiss ion standards are
maintai ned, thus min imizing adverse effects
on the environment .
Important considerations for you and your
vehicle
The increasing use of electronics, sophisticated
fuel injection and emission control systems, and
the genera lly increas ing techn ica l complexity of
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383

Consumer Info rmation
today's a utomo biles, have steadily reduced the
scope of maintenance and repairs which can be
carried out by veh icle owners.
Also , sa fet y and
en vironmental
concerns place very strict limits
on the nature of repairs and adjustmen ts to en­
g ine and transmission parts wh ich an owner can
perform .
Maintenance, adjustments and repairs usually re­
qu ire special tools, testing devices and other
equ ipment available to specially trained work ­
shop personnel in order to assure proper per­
forma nce, re liability and safety of the veh icle and
its many systems .
Improper maintenance, adjustments and repairs
can impair the operation and reliab ility of your
ve hicle and eve n void your vehicle warranty .
Therefo re, proof of se rvicing in a ccordance w ith
the m aintenance sched ule may be a condition for
up ho ld ing a possible wa rranty claim made within
the wa rranty pe riod.
Above all , ope rational safety can be adversely af­
fected, cre ating unne cessa ry risks fo r you and
your passengers.
I f in doubt about any servicing, have it done by
your author ized Audi dealer or any other properly
eq uipped and qualified workshop . We strongly
urge you to g ive your author ized Audi dealer the
opportunity to perform a ll scheduled mainte ­
nance and necessa ry repairs. Your dealer has the
facilities, origina l parts and tra ined specialists to
keep your veh icle runn ing prope rly.
Performing limited maintenance yourself
The fo llow ing pages describe a limited number of
procedures whic h can be performed on your vehi­
cle with ordinary tools, should the need arise and
tra ined personnel be unava ilable. Before per­
forming any of these procedures, always thor­
ough ly read all of the app licab le text and carefu l­
ly follow the instructions g iven . A lways rigorously
observe the
WARNINGS prov ided .
Befo re yo u check anything in the engine com ­
partment, always read and heed all WARNINGS
c::> & and c::> & in Working in the engine compart­
ment on page 323 .
384
A WARNING
-
-Ser ious personal in jury may occur as a result
of imp roperly performed maintenance, ad­
justments or repairs .
- Always be extreme ly careful when work ing
on the vehicle . Always follow commonly ac­
cepted safety practices and general com­ mon sense. Never r is k personal in jury.
- Do not attempt any of the mainte nance,
checks or repairs described on the following pages if you are no t fu lly fam iliar with these
or other proce dures with respect to the ve­
hicle, o r are uncert ain how to p ro ceed.
- Do not do any work wi thout the prope r tools
a nd equi pmen t. H ave the necess ary wo rk
done by your authorized Au di dealer or an ­
other properly equipped and qualified work­
shop.
- The engine compartment of any motor veh i­
cle is a potentially hazardous area . Never
reach into the a rea around or touch the radi­
ator fan. It is temperature controlled and
can switch on suddenly - even when the en­
gine is off and the ignition key has been re­
moved. The rad iator fan switches on auto­
mat ica lly when the coolant reaches a certain
temperature and will con tinue to ru n until
the coolant temperat ure drops.
- Always remove the igni tion key before any­
one gets u nder the vehicle.
- Always support your vehicle with safety
stands if it is necessary to work underneath
the vehicle. The ja ck* s upplied w ith the vehi­
cle is no t ad equate fo r thi s pu rpose and
could collapse causing se rious personal in ­
jury .
- If you must wor k underne ath the vehicle
with the wheels on t he ground, always make
sure the vehicle is on level ground, that the
wheels a re always sec urely blocked and that
the engine cannot be started.
- Always make sure the transmission se lector
lever (automatic t ransm iss ion) is in P (Park
position) and the park b rake is applied.

K
Key....... .. .. ................ ..... .. 38
Key not recognized . . . . . . . . . . . . . . . . . . .
85
Key replacement . . . . . . . . . . . . . . . . . . . . . 38
Mechanical key . . . . . . . . . . . . . . . . . . . .
38, 39
Replacing the battery . . . . . . . . . . . . . . . . . 39
Unlocking/locking . . . . . . . . . . . . . . . . . 40, 42
Vehicle code . . . . . . . . . . . . . . . . . . . . . . . . . 38
Kick-down (automatic transmission) . . . . . . .
95
Knee airbags . . . . . . . . . . . . . . . . . . . . . . . . . 287
Description . . . . . . . . . . . . . . . . . . . . . . . . . 287
How they work . . . . . . . . . . . . . . . . . . . . . . 288
Important safety instruct ions . . . . . . . . . . 289
L
Lane assist
refer to Audi active lane assist . . . . . . . . . 125
Lap timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Evaluating . . . . . . . . . . . . . . . . . . . . . . . . . 106
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
LATCH · · · · · . .... ............. .. .. .. . 309
Descr iption . . . . . . . . . . . . . . . . . . . . . . . . . 310
Install ing a child restraint ............ . 311
Location
· · . .. ..... ....... ... .. .. .. . 310
Mounting and releasing the anchorage
hook
. . .. .. .... ............. .. .. .. . 311
Launch control program . . . . . . . . . . . . . . . . . 95
Leather care/cleaning . . . . . . . . . . . . . . . . . 357
Left contro l button ............. .. .. .. .. 14
License agreement (MMI) . . . . . . . . . . . . . .
253
Lifting points (vehicle jack) ....... ..... . 364
Light/rain sensor
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . .
54
Interval mode (w ipers) . . . . . . . . . . . . . . . . 60
Light functions . . . . . . . . . . . . . . . . . . . . . . . . 54
High beam assistant
55
Instrument illum ination . . . . . . . . . . . . . . . 58
Interior lighting . . . . . . . . . . . . . . . . . . . . . . 57
Lighting
Exterior
· · · · · · · · · · · · · · · · · · · · · · . .. .. .. 54
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7
Lights
~ Headlight range control system . . . . . . . . . 54
;::; Listening to mus ic ,....
8 refer to Media .. ............. .. . 227 , 236
3 Loading the luggage compartment . . . . . . . 259
Index
Locking/unlocking
By remote control . . . . . . . . . . . . . . . . . . . . 40
With the centra l locking switch . . . . . . . . .
41
With the convenience key . . . . . . . . . . . . . . 40
With the lock cylinder . . . . . . . . . . . . . . . . .
42
Low beam headlights . . . . . . . . . . . . . . . . . . . 54
Luggage compartment . . . . . . . . . . . . . . . . . . 70
Cover..... .. .. .. .. ............. .. .. . 70
Pass-through . . . . . . . . . . . . . . . . . . . . . . . . 73
Socket.. .. .. .. . ............ .... .. .. . 68
Storing cargo correctly . . . . . . . . . . . . . . . 259
Tie-downs . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Val et parking function . . . . . . . . . . . . . . . . . 51
also refer to Loading the luggage compart-
ment ..... .. .. .. ................. ..
259
Luggage compartment lid . . . . . . . . . . . . . . . 43
Emergency release . . . . . . . . . . . . . . . . . . . . 47
Lumbar support . . . . . . . . . . . . . . . . . . . . . . . 65
M
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 383
Maintenanc e intervals . . . . . . . . . . . . . . . . . 333
Making an emergency call . . . . . . . . . . . . . . 180
Malfunc tion indicator lamp (MIL) . . . . . . . . . 24
Map
Display
219
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Update . .. .. .. .. ............... .. ..
204
Mapupdate ... .. .. .................. . 217
Mechanical key . . . . . . . . . . . . . . . . . . . . . 38, 39
Media ... .. .. .. .. ............... 227, 236
Drives · · · · .. .. .. .. ....... ........ .. 228
Supported formats . . . . . . . . . . . . . . . . . . 242
Media center .. .. .. .. ............... .. 237
Memory buttons
refer to Shortcut keys . . . . . . . . . . . . 155, 162
Memory capa city
D. ,rectory . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Jukebox . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Memory card SD card reader (MMI) . . . . . . . . . . . . . . . . .
228
Supported types/formats . . . . . . . . . . . . . 242
Memory function . . . . . . . . . . . . . . . . . . . . . . 67
MENU button
· · · · · · · · · · · · ·........ ... 155
393