2012 AUDI A8 ground clearance

18 Instruments and warning/indicator lights
If the indicator light turns on and the mes­
sage appears, there is a ma lfunction in the en ­
g ine start system.
Drive to your authorized Aud i dealer immedi­
ate ly to have the malfunction cor rected .
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 .
Ca refully 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.
Ill Air suspension fault
There is a system ma lfunction that can result
in restr icted driving stability or reduced
ground clearance.
Drive to your authorized Audi dea ler immedi­
ate ly to have the malfunction corrected.
IIJ Air suspension: vehicle too low. Ground
clearance reduced
The ground clea rance is ve ry low due to a sys­
tem malfunct ion. Wait until the air suspen­
sion system has restored normal ground clear­
ance . Otherwise, conditions such as an uneven
road surface can lead to ve hicle damage.
~/ !f Safety systems
The fl (USA models) ;BI (Canada models) in­
d icator light monitors the safety systems e.g.
a ir bags, pretensioners and illum inates for a
few seconds each time you switch the ignition
on .
If the
I (USA models) ;BI (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 ign it ion on, th is also
means there is a malfunct ion.
A WARNING '"--
If you have a ma lfunction in the safety sys-
tems, contact your authorized Audi dea ler
imme diately. Otherwise the safety sys­
tems may not work properly in an acci­
dent.
fJJ [}, Electronic Stability Control (ESC)
This warning/indicator light monitors the
Electronic Stability Control.
When you switch the ignition on, the indicator
light
G1 turns on briefly to check the function.
If the
J.iJ ind icator lamp blinks wh ile driving,
the ESC or ASR (Anti-Slip Regulation) is active­
ly regulating.
If
the DJ ind icator lamp illuminates, the sys·
tern has switched the ESC off.
If the indicator light fi turns on, the ESC was
switched to ESC sport mode with the button
[!] c::, page 187. If this is case, you can reacti­
vate the ESC by switching the ignition off and
then on aga in. The warning/indicator light
should go out to show that the system is fully
functional again .
Stability program and ABS fault! See own­
er 's manual
If the indicator light DJ and the ABS indicator
li ght
m (USA models) ;II] (Canada models)
turn on and the message appears, there is a malfunction in the ABS system or electronic
differential lock. Th is also interrupts the ESC.
The brakes still funct ion wit h their normal
power, but ABS is not active .
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected .
If the battery terminals were disconnected
and re-connected, the vehicle was jump start-
ed or the battery is very weak, the ESC sensor .,,.

Audi adapt ive crui se c ontrol an d bra kin g guard 8 7
Audi adaptive cruise
control and braking
guard
Introduction
App lies to vehicles: with Audi adaptive cruise control
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 . Th is he lps 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 ¢
page 93.
Adaptive cruise control and Audi braking
guard have technica l limitations that you
must know, so p lease read this section care­
fully, understand how the system works and use them properly at all times.
General information
General information
Applies to vehicles: with Audi adaptive cruise control
Fig. 86 Front of the veh icle: sensors and video came ra
The areas that conta in the radar and ultrason ­
ic sensors and the v ideo camera ¢
fig. 86
must neve r be covered by stickers or other ob­
jects or obstructed w ith dirt, insects, snow or
ice that will interfere w ith the adaptive cruise
control system and Audi braking guard. For in­
formation on cleaning , refer to ¢
page 205.
The same applies for any modifications made
in the front area.
T he function of the Adaptive cruise cont ro l
system and A udi braking guard is limited un­
der some conditions.
- Objects can on ly be detected when they are
w ith in sensor range
¢page 89, fig. 89 .
-The system has a limited ability to detect
objects that are a shor t distance ahead,
off
to the side of your vehicle or moving into
your lane.
- Some kinds of ve hicles are hard to detect;
for examp le motorcycles, vehicles with high
ground clearance or overhanging loads may
be detected when it is too late or they may
not be detected at a ll.
- Stationary objects¢
page 88.
-When driving throug h curves ¢ page 88.
& WARNING
Always pay attent ion 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 start ing and for ma in­
taining speed and distance to other ob­
jects . Braking guard is used to assist you .
The driver must a lways take action to avo id
a collis ion. The driver is a lways responsible
for braking at the co rrect time.
- Improper use of adaptive cru ise control
can cause collisions, other acc idents and
serio us pe rsonal in jury.
- Never let the comfort and conven ience
that adaptive cruise control and Audi
braking guard offer dist ra ct you from the
need to be a lert to t raff ic condi tions and
the need to remain in full con trol of yo ur
vehicle at a ll times,
- Always remember that the adaptive
cruise contro l and Audi braking guard
have limits -they will not s low the vehi ­
cle down or maintain the set d istance
when you drive towards an obstacle or
something on or near the road that is not
mov ing, such as vehicles stopped in a
traffic jam, a stalled or disabled vehicle .
I f regis tered by the radar sensors,