2015 AUDI S8 ground clearance

18 Instruments and warning/indicator lights
If the indicator light turns on and the mes­
sage appears, do
not switch the ignition off
because you may not be able to switch it on
again.
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected.
Ill Engine start system fault. Please contact
dealer
If the indicator light turns on and the mes­
sage appears, there is a malfunction in the en­
gine start system.
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected.
0 Air suspension
• Air suspension: system fault. Can contin­
ue slowly with max. 35 mph.
There is a malfunction that can result in re­
stricted driving stability.
Carefully drive at a maximum speed of 35
mph (60 km/h) to your authorized Audi dealer
or qualified workshop to have the malfunction
corrected .
• Air suspension: service mode. Vehicle can
only be moved with restrictions
Carefully drive to your authorized Audi dealer
or qualified workshop immediately to have
the service mode deactivated.
II Air suspension fault
There is a system malfunction that can result
in restricted driving stability or reduced
ground clearance.
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected.
II Air suspension: vehicle too low. Ground
clearance reduced
The ground clearance is very low due to a sys­
tem malfunction . Wait until the air suspen ­
sion system has restored normal ground clear­
ance. Otherwise, conditions such as an uneven
road surface can lead to vehicle damage.
AIR/ e;, 5 f BAG -, a ety systems
The II (USA models),fll(Canada models) in­
dicator light monitors the safety systems e.g.
airbags, pretensioners and illuminates for a
few seconds each time you switch the ignition
on.
If the
II (USA models)/E,I (Canada models)
indicator light does not go out, or if it illumi­
nates while you are driving, or if it starts to
blink, then there is a malfunction somewhere
in the system.
If the light does not illuminate
when you switch the ignition on, this also means there is a malfunction.
A WARNING
=
If you have a malfunction in the safety sys-
tems, contact your authorized Audi dealer
immediately. Otherwise the safety sys­
tems may not work properly in an acci­
dent.
~ Brake booster
II Brake servo: limited functionality. You
can continue driving. Contact workshop
There is a brake booster malfunction. The
brake booster is still available, but its function
is limited. Because of this, the vehicle may
brake differently and the brake pedal may vi­
brate.
Drive to an authorized Audi dealer or author­
ized repair facility immediately to have the
malfunction corrected.
Y$/ C, Electronic Stabilization Control
(ESC)
If the Dl indicator light blinks while driving,
the ESC or ASR (Anti-Slip Regulation) is active­
ly regulating.
If the
Dl indicator light turns on, the system
has switched the ESC off. In this case, you can
switch the ignition off and then on to switch
the ESC on again . The indicator light turns off
when the system is functioning fully . .,,.

92 Audi ad apti ve cruise control and bra king gu ard
Audi adaptive cruise
control and braking
guard
Introduction
App lies to vehicles: with Audi adaptive cruise co ntrol
The adaptive cruise control system assists the
driver by regu lating vehicle speed and helping
to maintain a set distance to the vehicle
ahead, within the limits of the system.
If the
system detects a moving vehicle up ahead,
adaptive cruise control can brake and then ac­
celerate your vehicle. This helps to make driv­
ing more comfortable both on long highway
stretches and in stop-and-go traffic.
The braking guard system can warn you about
an impending collision and initiate braking
maneuvers
c:::> page 98.
Adaptive cruise control and braking guard
have technical limitations that you must
know, so please read this section carefully, un­
derstand how the system works and use them
properly at all times.
General information
General information
Applies to vehicles: with Audi adaptive cruise control
Fig. 96 Front of th e veh icle: senso rs and video camera
II> -m 0 :t
~
The areas that conta in the radar and ultrason­
ic sensors and the v ideo camera
c:::> fig. 96
must neve r be cove red by stic kers or other ob­
jects or obstructed w ith dirt, insects, snow or
i ce that will interfere with the adaptive cruise
control system and braking guard. For infor­
mation on cleaning, refer to
c:::> page 214. The same applies for any modifications made in
the front area.
T he function of the adaptive cru ise contro l
system and braking guard is limited under
some cond itions:
- Objects can only be de tected when they are
w ith in sensor range
c:::> page 94, fig. 99.
- The system has a limited ability to detect
objects that are a short d istance ahead, off
to the side of your vehi cle or mov ing into
your lane.
- Some kinds of veh icles are hard to detect;
for examp le motorcycles, veh icles with high
ground clearance or overhanging loads may
be detected when it is too late or they may
not be detected at all.
-When driving through curves
c!,>page 93 .
-Stat ionary objec ts c:::>page 93.
& WARNING
A lways pay attention to traffic when adap­
tive cruise contro l is switched on and brak­
ing g uard is active. As the driver, you are
still respons ible for starting and for main­
taining speed and distance to other ob­
jects. Braking guard is used to assist you .
The dr iver must a lways take action to avo id
a collis ion . The driver is a lways respons ible
fo r braking a t the co rrec t time.
- Improper use of adaptive cru ise control
can cause collisions, other acc idents and
serious pe rsonal in jury.
- Never let the comfort and convenience
that adaptive cruise control and braking gua rd offer d istract you from the need to
be alert to traffic condit ions and the
need to remain in fu ll control of your ve­
hicle at a ll times,
- Always remember that the adaptive
cruise control and braking guard have
limits -they will not s low the vehicle
down or maintain the set distance when
you drive towards an obstacle or some­
thing on or near the road that is not
mov ing, such as vehicles stopped in a
traffic jam, a stalled o r disabled vehicle.
I f registered by the radar sensors,

108 Audi drive select
Audi drive select
Driving settings
Introduction
Audi drive select makes it possible to experi­
ence different types of vehicle settings in one
vehicle. The driver can select three
Comfort,
Auto
and Dynamic modes in the MMI to
switch between a sporty and a comfortable
driving mode.
You can a lso adjust the setting according to
your preferences in the
individual mode. For
example, you can combine settings such as a
sporty engine tuning with comfortab le steer­
ing.
A WARNING
Improper use of the Audi drive select can
cause collisions, other accidents and seri­
ous personal injury.
Description
The vehicle setup in each mode depends on
the vehicle's features. The engine, transmis­
sion, steering, reversible safety belt tension­
ers and adaptive air suspension are always in­
volved.
Engine and transmission
Depending on the mode, the engine and the
transmission respond quicker or in a more bal­
anced manner to acce le rator pedal move­
ments. In the sporty dynamic mode, the
transmission shifts at higher RPMs.
Air suspension
The adaptive air suspension/adaptive air sus­
pension sport*
(Ai r suspension in the MMI) is
an electronically control led air suspension and
damping system. They are adjusted depend­
ing on the selected driving mode, the driver's
steering, braking and acceleration input and
the road surface, vehicle speed and load. A
sporty setting is generally used in vehicles
with adaptive air suspension sport*. The
vehicle clearance varies depending on the
selected mode and the speed .
The highway setting is activated automatically
when you drive above 75 mph (120 km/h) for
more than
30 seconds in the auto or dynamic
mode. The ground clearance is increased auto­
matically if the speed drops below
44 mph
(70 km/h) for more than 120 seconds.
Steering
The steering adapts in terms of steering effort
and steering ratios . Indirect steering that
moves easily, like the steering in comfort
mode, is best suited to long drives on a high­
way. In contrast, dynamic mode provides
sporty, direct steering .
The following applies to vehicles with dynamic
steering* : the steering ratio changes based on
vehicle speed in order to maintain optimum
steering effort for the driver at all times. This
sets the steering to be less sensitive at higher
speeds in order to provide improved vehicle
control. At reduced speeds, however, steer ing
is more direct in order to keep the steering ef­
fort as minimal as poss ible when the driver is
maneuvering the vehicle. At low and average
speeds, dynamic steering additionally pro ­
vides more responsive steering performance.
Sport differential*
As a component of the all whee l dr ive system
(quattro)
r:!> page 202, the Sport differential*
distributes the driving power to the rear axle
depending on the situation . The distribution
of power varies depending on the selected
mode, from balanced (comfort) to agile (dy­
namic). The goal is a high level of agility and
ability to accelerate on curves . The vehicle is
very respons ive to steering .
Curve light*
The curve light adapts to driving on curves.
The pivoting action and the lighting are also adapted to the mode.
Adaptive cruise control*
The behavior when accelerating can be adjust­
ed from comfortab le to sporty, depending on ..,.