traction control AUDI S4 2017 Owners Manual

Audi connect (Infotainment)
"'Se lect: I MENU I button > Audi connect > desi red
Audi connect (Infotainment) service
> right
contro l button .
D epe ndi ng on t he A udi connect (Infotainmen t)
service se lected, t he followin g bas ic functions are
ava ila bl e:
Save as preview*
You ca n sa ve eve ry A udi con nect (I nfot ain ment)
servi ce as a pr eview and disp lay i t on t he A udi
con nec t (Infotainmen t) home screen
(D
¢ page 173, fig . 166.
Show on map
You ca n show se lec ted con te nts on the map and
use t hem for route guida nce.
Log in
Refer to ¢ page 173, Logging into myAudi in the
vehicle.
Read out
You can a llow the MMI to read out the selected
contents.
Calling*
If a phone numbe r was ass igned to an entry, yo u
can call the num ber, fo r example to rese rve t ick ­
ets.
Start route guidance
If a city wa s added to an entry, such as Travel
(t ra ve l gu ide), you c an use i t as a navig ation des­
t in ation . Ro ute gui dance starts immediately.
Changing the search area
The set search area ca n be cha nged at any time .
A dd it io na l info rmation on se arch areas can be
fou nd und er
<:?page 190.
Closing Audi connect (Infotainment) services
Depending on the selected function, you can
close an Aud i connec t (Info tainmen t) service at
a ny time a nd ret urn to th e home sc reen
<:? page 173, fig. 166.
174
Parking information
Applies to vehicles with Audi connect (Infotainment)
Info rmation on pa rking lo cat ions an d fees in the
se le cted searc h area (fo r ex ample
Nearby ).
"' Select and confirm Parking information .
You can use the right control b utton to so rt the
par king locat ions
By distance or By availability .
' Travel information
Applies to vehicles with Audi connect (Infotainment)
Information on attractions in the selected search
a rea .
"' Select and confirm an attract ion to d isp lay the
detai ls .
' Fuel prices
App lies to vehicles with Audi connect (Infotainment)
Info rmation on gas s ta tions w ith the lowest f uel
pr ices for you r vehicle in the selec ted sea rch area.
"' Select and confirm
Fuel prices .
You can use the r ight control button to so rt the
fuel p rices
By price or By distance .
, Weather
Applies to vehicles wit h Aud i connect (I nfotainment)
Info rmation on cur re nt weat he r c ond itio ns as
well as weat her f ore ca sts f or th e se lec ted searc h
are a.
"' Select and confirm
Weather .
You can also display the current weat her condi­
tions on the map, fo r example.
"' Select: lef t control button
> an entry .
Flight information
App lies to vehicles with Aud i connect (Infotainment)
Info rm ation on fl igh ts a nd current arr ival/ depar­
ture times in the sele cte d sea rch a rea.
"' Select and confirm
Flight information.

Wheels
bolts and a special procedure. You must never
repair or disassemble them ¢
.&..
A WARNING
Wheel bolts that are tightened or repaired in­
correctly can become loose and result in loss
of vehicle control, which increases the risk of
an accident. For the correct t ightening specifi ­
cation, refer to ¢
page 348, Finishing .
-Always keep the wheel bolts and the
threads in the wheel hub clean and free of
grease .
- Only use wheel bolts that fit the rim .
- Always have damaged rims repaired by an
authorized Audi dealer or authorized Audi
Service Facility . Never repair or disassemble
rims yourself, because this increases the risk
of an accident.
Winter tires
W inter tires significantly improve the vehicle's
handling when driving in winter conditions. Be­
cause of their construction (width, compound,
tread pattern) , summer tires provide less trac­
tion on ice and snow.
.,. Use winter t ires on all four wheels.
.,. Only use winter tires that are approved for your
vehicle.
.,. Please note that the maximum permitted
speed may be lowe r with winter tires
q ,&. . An
authori zed Audi dealer or authori zed Audi Serv­
ice Facility can inform you about the maximum
permitted speed for your tires .
.,. Check the tire pressure after installing wheels
¢page 327.
The effectiveness of winter tires is reduced great­
ly when the tread is worn down to a depth of
0 .16 in (4 mm) . The characteristics of winter
tires also decrease great ly as the tire ages, re­
gardless of the remaining tread .
A WARNING
-Never drive faster than the maximum per­
mitted speed for your tires. This could cause
the tires to heat up too much. This increases
332
-
the risk of an accident because it can cause
the tire to burst.
- Always adapt your driving to the road and
traffic conditions . Drive carefully and reduce
your speed on icy or slippery roads . Even
winter tires can lose traction on black ice .
@ For the sake of the environment
Reinstall summer tires at the appropriate
time, because they prov ide better handling
when roads are free of snow and ice. Summer
tires cause less road noise, tire wear and fuel
consumpt ion .
(D Tips
You can also use all season tires instead of
winter tires. Please note that in some coun­
tries where winter tires are required, only
winter tires w ith the ~ symbol are permitted .
Snow chains
Snow cha ins not only improve the driving in win­
ter road condit ions, but also the braking.
.,. Only install snow chains on the
front wheels .
This applies a lso to vehicles with all wheel
drive* .
.,. Check and correct the seating of the snow
chains after driving a few feet, if necessary. Fol­
low the instructions from the manufacturer.
.,. Note the maximum permitted speed when driv­
ing with snow chains. Do not exceed 30 mph
(SO km/h) .
Use of snow chains is only permitted with certain
rim/tire combinations due to technical reasons.
Check with an authorized Audi deale r or author­
ized Audi Service Facility to see if you may use
snow chains .
Use
fine-mesh snow chains. They must not add
more than 0.53 in (13 .5 mm) in height, including
the chain lock.
You must remove the snow chains on roads with­
out snow. Otherwise , you could impair driving
ability and damage the tires .

Wheels
-Traction AA A BC
- Temperature ABC
Quality grades can be found where applicable on
the tire side wall between tread shoulder and maximum section width
~ page 317, fig. 253.
For example: Tread wear 200, Traction AA, Tem ­
perature
A .
All passenger car tires must conform to Federal
Safety Requirements in addition to these grades.
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov­
ernment test course.
For example, a tire graded 150 would wear one
and one half
(1 1/2) times as well on the govern ­
ment course as a tire graded 100.
The relative performance of tires depends upon
the actual conditions of their use, however , and
may depart significantly from the norm due to
variations in driving habits, service practices and
differences in road characteristics and climate.
Traction
The traction grades, from highest to lowest, are
AA, A, Band
C. Those grades represent the tire's
ability to stop on wet pavement as measured un­
der controlled conditions on specified govern ­
ment test surfaces 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 the tire's resistance to the
generation 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 failur e~ ,& .
The grade C corresponds to a level of perform­
ance which all passenger car tires must meet un-
334
der the Federal Motor Vehicle Safety Standa rd
No. 109. Grades Band A represent higher levels
of performance on the laboratory test wheel than
the minimum required by law.
A WARNING
,--
The traction grade assigned to this tire is
based on straight -ahead braking traction
tests, and does not include acceleration, cor­ nering, hydroplaning or peak traction charac­
teristics .
A WARNING
The temperature grade for this tire is estab­
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla­
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.
A WARNING
Temperature grades apply to tires that are properly inflated and not over or underinflat­
ed.
Tire pressure monitoring indicator
(l) General notes
-
Each tire, including the spare (if provided),
should be checked monthly when cold and inflat­
ed to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or
tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the veh icle placard or tire inflation pressure la­
bel, you should determine the proper tire infla­
tion pressure for those tires).
As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring system
(TPMS) that illuminates a low tire pressure tell­
tale when one or more of your tires is significant­ ly under-inflated. Accordingly, when the low tire
pressure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a
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