2016 AUDI S4 suspension

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0 ::..:: co ..... ..... Audi drive select Driving settings
Introduction
Applies to vehicles: with Audi drive select
Drive select provides the possibility to experience
d iff erent types of vehicle settings in one veh icle.
F or instance, using the three
Comfort, Auto and
Dynamic modes, the driver can switch from a
sporty to a comfortab le driving mode with the
press of a button.
Addit ionally, in vehicles with MM I*, the vehicle
setup for
Individual* mode can be customized by
you. This makes it possible to combine settings
such as a sporty engine tuning with comfortable
steering.
A WARNING
-
Improper use of the Audi drive select can
cause collisions, other accidents and serious
personal injury .
Description
Applies to vehicles: with Audi drive select
The vehicle setup in each mode depends on the
veh icle's features . However, the engine, auto­
matic transmission* and steering are always in ­
volved.
Engine and automatic transmission*
Depending on the mode, the engine and the au ­
tomatic transm ission respond quicker or in a
more balanced manner to accelerator pedal
movements . In the sporty dynamic mode, the au­
tomatic transmission shifts at higher RPMs.
Steering
The steering adapts in terms of steering effort
and steering ratios. Indirect steer ing that moves
eas ily, like the steering in comfort mode, is best
suited to long drives on a highway. In contrast,
dynamic mode provides sporty, direct steering.
The follow ing applies to vehicles with dynam ic
steer ing*: the steering rat io changes based on
vehicle speed in order to maintain optimum
steer ing effort for the driver at all times. This
Audi drive select
sets the steering to be less sensitive at higher
speeds in order to provide improved vehicle con­
trol. At reduced speeds, however, steering is
more direct in order to keep the steering effort as
minimal as possible when the driver is maneuver­
ing the vehicle. At low and average speeds, dy ­
nam ic steering additionally prov ides more re­
spons ive steering performance .
Adaptive dampers*
The adaptive dampers* use sensors to record in­
formation regarding steering movements, brak­
ing and acceleration operations by the driver,
road surface, driving speed, and load . This makes
it possible to adapt damping to the driving situa­
tion virtua lly in real time. Drive select also makes
it possible to sat isfy the desire for sporty suspen­
sion (Dynamic) and comfortable suspension
(Comfort) without giving up balanced tuning (Au­
to).
Sport differential*
As a component of the all whee l dr ive system
(quattro)
c::> page 182, the sport different ial* dis­
tributes the driving power to the rear axle de­
pending on the situation. The distribution of
power varies depending on the mode selected.
The goal is a high level of ag ility and ability to ac­
celerate on curves. The vehicle is very responsive
to steering.
Audi adaptive cruise control*
The behavior when accelerating can be adjusted
from comfortable to sporty, depending on the
drive select mode. Adaptive cruise control also
responds to the driving behavior of the vehicle
ahead in a more conservative or sporty manner .
Engine sound*
The sound of the engine is adapted to the select­
ed mode and ranges from subtle to sporty.
(D Tips
- In some models, the maximum vehicle
speed can only be reached in the
Auto and
Dynamic modes.
- For vehicles with an automatic transmis-
sion, se lecting the
Dynamic mode resu lts in ...,
111

Airbag system
@ For the sake of the environment
Undeployed airbag modu les and pretension­
ers might be classified as Perchlorate 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 safe­
ty belts with pretens ioners are scrapped, all
applicable laws and regulat ions must be ob­
served. Your authorized Audi dealer is familiar
with these requirements and we recommend
that you have your dealer perform this service
for you.
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
cha nge the way that the Advanced Airbag System
pe rforms in a crash. For example, using tire-r im
comb inat ions not approved by Audi, lower ing the
veh icle, changing the stiffness of the suspens ion,
including the spr ings, suspension struts, shock
absorbers etc . can change the forces that are
measured by the airbag sensors and sent to the
electronic control unit . Some suspens ion 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 force levels measured by
the sensors and preven t the airbag from deploy­
ing when it should .
A WARNING
Changing the vehicle's suspension including
use of unapproved tire-rim combinations can
change Advanced A irbag performance and in ­
crease the risk of serious personal injury in a
crash.
- Never install suspension components that
do not have the same performance charac­
teristics as the components originally insta l­
led on your veh icle.
- Never use tire-rim comb inations that have
not been approved by Audi.
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A WARNING
Items stored between the safety belt buckle
and the center console can cause the sensors in the buckle to send the wrong information
to the electronic control module and prevent
the Advanced A irbag System from working
properly.
- Always make sure that nothing can inte rfe re
w ith the safety belt buckles and that they
are not obstructed.
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.
Fig. 156 S ide ai rbag locatio n in the dr ive r's seat
The side airbags are located in the sides of the
front seat backrests
¢ fig . 156 and the rear back­
rest facing the doors. They are identified by the
word "AIRBAG".
The side airbag system basically consists of:
-the electronic control module and external side
impact sensors
- the two airbags located in the sides of the front
backrests and the two airbags" located in the
rear backrest
- the airbag warning light in the instrument clus-
ter.
The airbag system is monitored electronica lly to
make certain that it is functioning proper ly at all
times. Each time you turn on the ignition, the air­
bag system indicator light will come on for a few
seconds (self diagnostics). .,,.

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0 ::..:: co ..... ..... Driving and the
environment
Breaking in
New engine
The engine needs to be run-in during the first
1,000 miles (1,500 km).
For the first 600 miles (1 ,000 kilometer s):
"' Do not use full throttle .
"' Do not drive at engine speeds that are more
than
2/3 of the max imum permitted RPM .
From 600 to 1,000 miles (1 ,000 to 1 ,500
kilometers):
"' Speeds can gradually be increased to the maxi­
mum pe rm issib le road or engine speed .
During and after break-in pe riod
"' Do not rev the engine up to high speeds when it
is cold. This applies whether the transmission is
in N (Neutral) or in gear .
After the break-in period
"'Do not exceed maximum engine speed under
any c ircumstances.
"'U pshift into the next higher gear
before reach­
ing the red area at the end of the tachometer
sca le
c=>page 10.
During the first few hours of driving, the eng ine's
internal friction is higher than later when all the
mov ing parts have been broken in . How well this
b reak-in process is done depends to a considera­
b le exte nt on the way the veh icle is d rive n during
t he first 1,000 miles (1,500 kilometers).
(D Note
Extremely high eng ine speeds a re au toma ti­
cally reduced. However, these rpm limits are
programme d for a n engine well run-in, not a
new engine.
@) For the sake of the environment
D o not dr ive with u nnecessari ly high eng in e
spee ds -ups hifting ea rly saves fuel, reduces
noise and pro tec ts the envi ronme nt.
Driving and the envir onment
New tires
If your vehicle is runn ing on new tires, d rive very
car efu lly fo r the firs t 35 0 miles (500 kilometers)
a ft er fit ting.
New tires tend to be slippe ry and must a lso
be "bro ken-in". Be sure to remembe r th is dur­
i ng the fi rst 350 m iles (500 kilometers).
Brake gent ly. Avoid following closely behind
other vehicles or other s ituations that m ight
r equire sudden, hard b raking.
Avoid damaging the
vehicle
When yo u are dr iv ing o n poor roa ds, or over
cur bs, stee p ramps, e tc., ma ke cert ain that low­
ly ing parts s uch a s spo ile rs a nd exh aust sy stem
parts do no t bottom o ut and get dama ged.
T his is espec ially true for ve hicles with low-s lung
c h ass is (sports c hass is) * and fully loaded
vehicles.
Driving through water on
roads
Note t he following to avoi d ve hicle damage w hen
driv ing through water, for examp le on flooded
roads:
- The water must not be any hig her t han the bot ­
tom of the vehicle body.
- Do not dr ive faste r than walk ing speed.
A WARNING
= -
Afte r driv ing th ro ugh water, m ud, slush, etc .,
the brakes may be slow to take effect beca use
of wet brake rotors and pa ds. Dry the brakes
f irst by braking carefully to restore the full
b raking effect.
(D Note
Ve hicle compone nts such as the engine,
transmission, suspension o r electrica l system
can be severely damaged by driving throug h
water.
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