2016 AUDI S4 air condition

Wheels
Th at w eight ma y not safel y ex­
ce ed th e av a il a bl e c argo and
lugga ge loa d capa city c alcul at­
ed in St ep 4.
6 . If yo ur vehicle will b e to wing a
tr aile r, lo ad fr om your tr ailer
w ill b e tran sferred to your ve ­
h ic le . Con sult thi s manual to
dete rmin e how this re du ce s
the a vailable carg o and lug­
g age load capa cit y o f your vehi ­
cle .
.,.Ch eck th e tire s idewall
(¢pag e 217 J fig . 188) to deter­
min e the d esign ated load r ating
for a specifi c tire .
Wheel bolts and rims
Wheel bolts
W heel bol ts must be clean and loosen/t ighten
eas ily.
Rims
R ims with a bolted rim r ing * or w it h bolted whee l
covers * consist of mu ltiple pieces . These compo ­
nents were bolted together using specia l bolts
a nd a special procedu re. You must not repair o r
d isassemble th em¢ ,&..
_& WARNING
Whee l bolts tha t are t ightened o r repa ire d in­
correctly can become loose and resul t in loss
of vehicle control, which increases the risk of
an acc ident. For the correct t ightening specif i­
cat ion, refer to¢
page 241, After changing a
wheel.
- Always keep the wheel bolts and the
threads in the whee l hub clean and free of
grease.
- Only use wheel bolts that fit the rim.
232
- Always have damaged rims repaired by an
author ized Audi dealer or authorized Audi
Serv ice Facility. Neve r repa ir or disassemb le
r ims you rself, because this increases the risk
of an accident.
Winter tires
Win ter tires significantly improve the vehicle's
handling when dr iv ing in winter conditions. Be­
ca use of their const ru ct ion (w idth, compou nd,
t read pat te rn), summer t ires provide less t rac­
tion on ice and snow .
.,. Use winter tires on all four wheels.
.,. Onl y use winter tires that a re approved fo r yo ur
veh icle.
.,. Please note that t he maximum permit ted
speed may be lower with winter tires¢.&_ . An
authorized A udi dealer or authorized Audi
Serv­
ice Facility can inform you about the maximum
permitted speed for your tires .
.,. Check the tire pressure after insta lling wheels
¢ page 227.
The effectiveness of winter tires is reduced great­
l y when the tread is worn down to a depth of
0 .157 in (4 mm). The characteristics of winter
tires also decrease g reatly as the tire ages, re­
gard less of the rema ining t read .
_& WARNING
-
-Never d rive fas ter than the max imum pe r­
m itted speed for your tires. This could c ause
the t ires to hea t up too m uch. T his increases
the risk of an accident because it can cause the t ire to burst.
- Always ada pt your driving to the road and
traffic conditions. Drive carefu lly and reduce
your speed on icy or slippery roads. Even
winter t ires can lose tract ion on black ice.
@ For the sake of the environment
Reinsta ll summer tires a t the appropriate
time, beca use they provide better handling
when roads are free o f snow and ice. Summer
tires cause less road no ise, tire wear and fuel
consumpt ion.

Wheels
you r tires. Impact with a cu rb may also cause
damag e to your tires .
- After any impact, immediately inspect your
tires or have them inspected by the nearest au­
thorized Audi dea ler. Replace a damaged tire as
soon as possib le.
- Inspect yo ur tires every 2,000 miles (3,000 km)
f or damage and wear. Damage is not always
easy to see. Damage can lead to loss of air and
underinflation, which could eventually cause
tire failure . If you believe that a tire may have
been damaged, replace the t ire as soon as pos­
s ible .
- These tires may wear more quickly than others .
- Please a lso remember that, w hile these t ires
deliver responsive handling, they may r ide less
comfortably and make more no ise than other
cho ices .
Reduced perform ance in winter /cold season
conditions
All tires are designed fo r certa in purposes. The
low aspect ratio, ultra hig h pe rformance t ires
or iginally insta lled on you r vehicle a re intended
for max imum dry and we t road performa nce and
handling. They are not s uita ble fo r cold, snowy or
icy weathe r cond itions. If you drive under those
circumstances, you shou ld equip your vehicle
with all-s eason or winter tires, which offer b etter
traction under those condit ions. We suggest you
use the recommended snow or all-season tires
specif ied for your vehicle, or their equivalent .
Ref er to ¢
page 232 for more detai led informa­
tion regarding winter tires.
Uniform tire quality grading
- Tread wear
- Traction AA A B C
- Temperature ABC
Q ua lity grades c an be found where app licab le on
the tire side wall between tread shoulde r and
maximum section width
¢ page 217, fig . 188.
For example : Tread wea r 200, Trac tion AA , Tem­
pe ra ture
A .
All passenger car tires must conform to Federal
Safety Requi rements in add ition to these grades.
234
Tre ad wear
The tread wear g rade is a compara tive rating
based on the wear rate of the tire when tested
u nder controlled conditions on a specified gov­
e rnment test course .
Fo r example, a tire g raded 150 wou ld wear one
and one half (1 1/2) times as we ll on the govern ­
ment course as a t ire graded 100.
The re lative pe rformance of tires depends upon
the actual cond itions o f the ir use, however, and
may depa rt sign ificantly from the no rm due to
variations in driv ing habits, service practices and
differences in road character istics and climate.
Traction
The traction grades , from highest to lowest, a re
AA, A, B and
C. Those g rades rep resent the tire 's
ability to stop on wet pavement as measured un ­
der controlled conditions on specified govern­
ment test s urfaces of asphalt and concrete. A tire
marked C may have poor traction performance
¢ ,& .
Temperature
The temperature grades are A (the highest), B,
and C, representing t he tire's resistance to the
generat ion of heat and its ability to dissipate
heat when tested under controlled conditions on
a specified indoor laboratory test wheel.
Sustained high temperature can cause the mate­ rial of the tire to degenerate and reduce tire life,
and excessive temperature can lead to sudden
tire failure¢ ,&.
The grade C corresponds to a level of perform­
ance which all passenger car tires must meet un­
der the Federal Motor Vehicle Safety Standard No. 109 . Grades Band A represent higher levels
of performance on the laboratory test wheel than
the minimum requ ired by law .
A WARNING
-
The t ract ion g rade assigned to this t ire is
based on straight-ahead br aking traction
tes ts, and does not include acceler ation, cor­
nering, hydroplaning or pea k traction charac­
teristics .

Consumer information
Consumer information
Warranty coverages
Your Audi is covered by the following warran­
ties:
- 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 regarding your warranties
can be found in your
Warranty & Maintenance
booklet .
Operating your vehicle
outside the U.S.A. or
Canada
Government regulati ons in the United States and
Canada require that automobi les meet specific
emission regulations and safety standards.
Therefore, vehicles built for the U.S.A. and Cana ­
da differ from vehicles sold in other countries.
If you plan to take your vehicle outside the conti­
nenta l limits of the United States or Canada,
there is the poss ibility that:
- un leaded fue ls for vehicles with catalytic con­
verter may not be available;
- fuel may have a considerably lower octane rat­
ing . Improper fuel may cause engine damage;
- service may be inadequate due to lack of proper
service facilities, tools or testing equipment;
- r eplacement parts may not be readily available.
- Nav igation systems for veh icles built for the
U.S .A . and Canada will not necessarily work in
Europe, and may not work in other countries
outside of North America.
258
(D Note
Audi cannot be responsib le for mechanical
damage that could result from inadequate
fuel, service or parts ava ilability.
Audi Service Repair
Manuals and Literature
Audi Official Factory Service Manuals and Litera ­
ture are published as soon as poss ible after mod­
el introduction . Service manuals and literature
are available to order from the Audi Technical Lit ­
erature Ordering Center at :
www.audi.techliterature .com
Maintenance
General '
Your vehicle has been designed to help keep
maintenance requirements to a minimum. How­
ever, a certain amount of regular maintenance is
still necessary to assure your vehicle's safety,
economy and reliability . For detailed vehicle
maintenance consult your Warranty & Mainte­
nance booklet .
Under difficult operating conditions, for exam ­
ple at extremely low outside temperatures, in
very dusty regions, when towing a trailer very fre­
quently, etc., some service work should be per­
formed between the intervals 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 em iss ion standards are
maintained, thus minimizing 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 generally increas ing technica l complexity of ..,_

..... N
0 ::..:: co ..... ..... today's automobiles, have steadily reduced the
scope of maintenance and repairs which can be
carried out by vehicle owners.
Also, safety and
environmental
concerns place very strict limits
on the nature of repairs and adjustments to en­
gine and transmission parts which an owner can perform .
Maintenance, adjustments and repairs usually re­
quire special tools, testing devices and other
equipment available to specially trained work ­
shop personnel in order to assure proper per­
formance, reliability and safety of the vehicle and its many systems.
Improper maintenance, adjustments and repairs
can impair the operation and reliability of your
vehicle and even void your vehicle warranty .
Therefore, proof of servicing in accordance with
the maintenance schedule may be a condition for upholding a possible warranty claim made within
the warranty period.
Above all , operational safety can be adversely af­
fected, creating unnecessary risks for you and
your passengers.
If in doubt about any servicing, have it done by
your authorized Audi dealer or any properly equipped and qualified workshop. We strongly urge you to give your authorized Audi dealer the
opportunity to perform all scheduled mainte­ nance and necessary repairs. Your dealer has the
facilities, original parts and trained specialists to keep your vehicle running properly .
Performing limited maintenance yourself
The following pages describe a limited number of
procedures which can be performed on your vehi­
cle with ordinary tools, should the need arise and
trained personnel be unavailable. Before per­
forming any of these procedures, always thor­
oughly read all of the applicab le text and careful­
ly follow the instructions given . Always rigorously
observe the
WARNINGS provided .
Before you 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 203 .
Consumer information
A WARNING
-Serious personal injury may occur as a result
of improperly performed maintenance, ad­
justments or repairs .
- Always be extremely careful when working
on the vehicle. Always follow commonly ac­
cepted safety practices and general com­
mon sense. Never risk personal injury.
- Do not attempt any of the maintenance,
checks or repairs described on the following pages if you are not fully familiar with these
or other procedures with respect to the ve­ hicle, or are uncertain how to proceed.
- Do not do any work without the proper tools
and equipment. Have the necessary work
done by your authorized Audi dealer or any
properly equipped and qualified workshop.
- The engine compartment of any motor vehi­
cle is a potentially hazardous area. Never
reach into the area 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 radiator fan switches on auto­
matically when the coolant reaches a certain
temperature and will continue to run until
the coolant temperature drops.
- Always remove the ignition key before any­
one gets under the vehicle.
-Always support your vehicle with safety
stands if it is necessary to work underneath
the vehicle. The jack supplied with the vehi­
cle is not adequate for this purpose and
could collapse causing serious personal in­
jury.
- If you must work underneath the vehicle
with the wheels on the ground, always make
sure the vehicle is on level ground, that the
wheels are always securely blocked and that
the engine cannot be started.
- Always make sure the transmission selector
lever (automatic transmission) is in "P"
(Park position) or Neutral (manual transmis-
sion) and the park brake is firmly applied . ..,.
259

means that you risk both a substant ia l reduction
in the operationa l safety of your vehicle and an
increased wear of vehicle parts¢
A.
Author ized Audi dealers w ill per form this wor k in
a professional and competent manner or, in spe­
cial cases, refer you to a professional company
that spec ializes in such modifications.
A WARNING
Improper repairs and mod ificat ions can
change the way veh icle systems work and
cause serious personal injury.
(D Note
If emergency repairs must be performed else­
where, have the vehicle examined by an au­ thorized Audi dealer as soon as possib le.
Declaration of
Compliance, Telecom­
munications and
Electronic Systems
Radio Frequency Devices and Radiocommunica ­
tion Equipment User Manual Notice .
The manufacturer is not responsible for any radio
or TV interference caused by unauthor ized modi­
fications to this equ ipment .
Devices
T he fo llow ing devices each comp ly w ith FCC Part
15.19, FCC Part 15.21 and RSS -Gen Issue
1:
- Adaptive cruise control*
- Convenience key*
- Side assist*
- Cell p hone package*
- Electron ic immobilizer
- Homelink universal remote contro l*
- Remote contro l key
FCC Part 15.19
This device compl ies w ith pa rt 15 of the FCC
;:; Rules. Opera tion is subjec t to the following two
0 ::..:: conditions : co ,...., Consumer inf ormation
(1) This dev ice may not ca use ha rmf ul inter fer ­
ence, and
( 2 ) this devi ce must ac cep t any inte rference re­
ce ived, in clu ding in terference tha t may ca use un­
desired ope ration.
FCC Part 15.21
CAU TION:
Changes or mod ificat ions not express ly approved
by the party responsible for compliance cou ld
vo id the user's a uth ori ty to operate t he equ ip­
ment .
RSS-Gen Issue 1
Operat ion is subject to the following two cond i­
t ions:
(1) this device may not cause interference, and
( 2 ) this devi ce must accep t any inte rference, in­
clud ing interference that may cause undes ired
operation of the device .
261