immobilizer AUDI S8 2015 Owners Manual

32 Opening and clo sing
Remov ing the mechanical key
Fig. 19 Remote control master key : removing the me­
chanical key
.. Press the release button@r=>.> fig. 19.
• Pull the mecha nica l key @ out of the master
key.
Using the mechan ica l key, you can:
- lock and unlock* the storage compartment
on the passenger's side c::>
page 75.
-lock and unlock the vehicle manually
<=>page 36.
-lock the front and rear passenger doors me­
chanically
c::> page 37.
- unlock the luggage compartment lid man­
ually
c::> page 40.
Check light and battery in the master
key
Fig. 20 Remote master key: Removing the battery
holder
Check light in the master ke y
The check light@c::> fig. 20 in the master key
prov ides informat ion about d ifferent cond i­
tions.
• The check light turns on briefly once when a
button is pressed, and dur ing an "inquiry"
by the convenience key system. •
If the check light does not come on, the bat ­
tery is dead and has to be replaced. In addi­
tion, when the battery is dead the
!I indi ­
cator light appears in the instrument cluster
display as well as the message
Pl ease
chang e th e ke y b attery .
Ma ster key batter y replacement
• Remove the mechanica l key c::> page 32.
• Press the release button@¢ fig. 20 on the
battery holder and at the same time pull the
battery holder out of the master key in the
direction of the arrow .
.. Install the new battery CR 2032 with the
"+" sign facing down.
.. Push the battery holder carefu lly into the
maste r key.
• Insta ll the mechanical key .
@ For the sake of the environment
Dis p ose of dead batteries prope rly so as
not to poll ute the environment.
{D Tips
The replacement battery mus t be the
same specification as the o rigina l.
Electronic immobilizer
The immobilizer helps to prevent unauthor­
ized use of your vehicle .
A computer chip ins ide your key automatically
deact ivates the elect ron ic immobilizer when
the key is ins ide the veh icle. When you remove
the key from the vehicle, the elect ron ic immo­
bilizer is au tomatically activa ted once aga in.
& WARNING -
A lways take the key w ith you when you
l eave the vehicle. The key can disarm the
e lectronic engine immobilizer and permit
an una uthorized person to start the engine
and enable operation of the vehicle sys­
tems such as power w indow or power sun-
r oof leading to se rious pe rsonal injury.
~

202 Intelligent technology
Driving with your
quattro
With All Wheel Drive, all four wheels are driv­
en .
General inform ation
With All Wheel Drive, power is distributed to
all four wheels . This happens automatically
depending on your driving style and the road
conditions at the time . See also
c:;; page 197.
With the sport differential*, power d istribu­
tion to the rear wheels is variable and can be
adjusted with Audi d rive select*
c:;; page 108.
Always read and follow safety precautions
¢ .&,.
Winter tires
When driving in the winter , your vehicle with
A ll Wheel Drive has an advantage, even with
regular tir es. In winter road conditions it may
be advisable to mount winter tires (or all-sea­
son tires) for improved driveability and brak­ ing: these tires must be mounted on
all four
wheels.
See also ¢ page 260, Winter tires.
Snow chains
Where snow chains are mandatory on certa in
roads, this normally a lso applies to vehicles
with A ll Wheel Drive
c:;, page 261, Snow
chains .
Replacing wheels/tires
Vehicles with All Wheel Dr ive must always
have tires of the same size. Also avoid ti res
with different tread depths. For details see
page
c:;, page 256, New tires and replacing
tires and wheels .
Off-Road driving?
Your Audi does not have enough ground clear­
ance to be used as an off-road vehicle. It is
therefore best to avoid rough tracks and un ­
even terrain as much as possible. Also refer to
c:;; page207.
A WARNING
Always adjust your driving to road and traf­
f ic conditions. Do not let the extra safety
afforded by All Wheel Drive tempt you into
taking extra risks.
- Although the All Wheel Drive is very ef­
fective, always remember that braking
capacity is lim ited by tire traction. You
should therefore not drive at excessive
speeds on icy or slippery road surfaces.
- On wet road surfaces, be careful not to
drive too fast because the front wheels
could begin to slide on top of the water
(aquaplaning) . If this should occur, you
will have no warning from a sudden in­
crease in eng ine speed as with a front­
wheel drive vehicle. Always drive at speeds which are suited to the road con­
ditions - risk of crash .
Energy management
Starting ability is optimized
Energy management controls the distribution
of electrical energy and thus optimizes the
availability of electrical energy for starting
the engine .
If a vehicle with a conventiona l ene rgy system
is not driven for a long period of time, the bat­
tery is discharged by idling current consumers
(e .g. immobilizer). In certain circumstances it
can resu lt in there being insufficient energy
available to start the engine .
Intelligent energy management in your vehi­
cle handles the distribution of e lectrica l ener­
gy. Starting ability is markedly improved and
the life of the battery is extended.
Basically, energy management consists of
battery diagnosis , idling current manage­
ment
and dynamic energy management.
Battery diagnosis
Battery diagnosis continuously determines
the state of the battery. Sensors determine
battery voltage, battery current and battery ..,.

,....,
N ,....,
N
0 J:
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Technical Modifications
Our guidelines must be complied with when
technical modifications are made.
Always consult an authorized Audi dealer be ­
fore starting work on any modifications.
This will he lp ensure that vehicle function,
performance and safety are not impaired
¢ .&..
Attempting to work on electronic components
and the software used with them can cause
malfunctions. Beca use of the way electronic
components are interconnected with each
other, such malfunctions can also have an ad­
verse affect on other systems that are not di­ rectly involved. Th is means that you r isk both
a substantial reduction in the operational
safety of you r vehicle and an inc reased wea r of
vehi cle parts¢ _&..
Author ized Audi dealers w ill perform th is
wo rk in a professiona l and competent ma nner
or, in spec ial cases, refer you to a p rofessional
company that specializes in such mod ifi ca­
tions .
_& WARNING t= -
Improper repairs and modifications can
change the way vehicle systems wo rk and
cause damage to the veh icle and ser ious
personal injury.
(D Note
If emergency repairs must be performed
elsewhere, have the veh icle examined by
an authorized A udi dealer as soon as possi­
ble.
Con sumer In formation 293
Declaration of
Compliance, Telecom­
munication or
Electronic Systems
Radio Frequency Devices and Radiocommuni­
cation Equipment User Manual Notice.
The manufacturer is not responsib le for any
radio or TV interference caused by unauthor­
ized modifications to this equipment.
Device s
The following devices each comply wi th FCC
Part 15 .19, FCC 15.2 1 and RSS -Gen Issue 1:
- Adaptive cru ise control
- Aud i side assist
- Cell phone package
- Convenience key
- Electron ic immobilizer
- Head phones
- Homelink u nivers al remote co ntrol
- Remo te control key
FCC Part 15.19
This device complies with part 15 of the FCC
Ru les . Operation is subject to the fo llow ing
two conditions:
(1) This device may not cause harmful inter­
ference, and
(2) this device must accept any inte rference
received, including inter ference that may
cause undes ired operation.
FCC Part 15.21
CAU TION:
Changes or mod ificat ions not expressly ap­
proved by the pa rty responsible fo r compli­
an ce could vo id the user's autho rit y to operate
the eq uipment .
RSS-Gen Issu e 1
Operation is subject to the follow ing two con­
ditions:
(1) this device may not cause interference,
and
•
•

298 Index
Cell phone package 293
Conveni enc e key ....... ... .. .. .... . 293
Electronic immobilizer .... ... .. .... . 293
Home link unive rsal remote con tro l ... 293
Remo te con trol key ......... .. .. .. . 293
Deco rativ e parts/trim
C leaning .... .. .. ..... ... .. .. .... . 216
D EF
What does this mean when it appea rs in
the trip odometer d isplay? . .. .. .. .. .. 26
Defective light bulb warning . . . . . . . . . . . 22
Defrosting (w indows) .. ... .. .. .. .. ... . 80
D eluxe automatic clima te control . . . . . . . 79
De term in ing co rrec t lo ad limit . .. .. ... 254
Di ese l fue l ... ... .. ..... ... .. .. .... . 22 1
Diesel par ticu late filter . . . . . . . . . . 21, 206
Dig ita l compass .... ......... .. .. .. .. 56
Di mensions .. .. . .. ..... ... .. .. .. .. . 288
Dimming the rearv iew mirror .......... 56
Disp lays
C leaning ... ... ... .... ... .. .. .... . 216
Di stance . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Door/re ar lid wa rning . . . . . . . . . . . . . . . . . 23
D oors
M echanical chi ld safety lock .. .... .. .. 41
Power child safety lock .... .. .. .... .. 41
Driver info rm ation system
CD/radio display . . . . . . . . . . . . . . . . . . . . 23
D oor/rear lid warning . . . . . . . . . . . . . . . 23
Exterior temperature disp lay ..... .. . . 23
On-board computer . . . . . . . . . . . . . . . . . 25
Dr iver seating posi tion ...... .. .. .. .. . 134
drive select adaptive a ir suspension/spo rt .. ... ... 108
Adaptive dampe rs . . . . . . . . . . . . . . . . . 108
Curve light ... ... ..... ... .. .. .. .. . 108
D ynamic stee ring .. ... .... .. .. .. .. . 108
E ng ine sound . ...... ..... .... .. .. . 108
Safety b elt tensioner . ... .. .. ... ... . 10 8
Sport differen tia l ...... ... .. .. .... . 108
Drive select ...... .. ... .... .. .. .. .. . 108
Driving safely .... .. ... .... .. .. .. .. . 133
D riving through water . ... .. .. .. .. .. . 20 7
Driving t ime ........... .... .... ..... 25
Dup licate key . . . . . . . . . . . . . . . . . . . . . . . 31 D
ust filter
ref er to Poll utant fi lt e r (automatic A/C
system) ... .. .. .. .. ... ..... ... .. .. . 78
Dynam ic steer ing . . . . . . . . . . . . . . 108, 201
E
Easy entry feature . . . . . . . . . . . . . . . . . . . . 82
EDL
refer to E lectronic different ia l lock .... 197
Efficiency program Fuel economy m essages . . . . . . . . . . . . . 26
Oth er equipment ... ... ..... ... .. .. . 26
El ectr ica l ac cessories (so ckets ) . . . . . 68, 74
Elec tromechan ic a l parking brake
Emergency brak ing ............... .. 87
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 85
Pa rking ... .. .. .. .... ...... .... ... . 86
Re leas ing and closing . ....... .... .. . 85
St arti ng assist . .. ... ... .... ..... .. . 86
Star ting from rest .. .... .... ... .. .. . 86
Starting off with a t railer ..... .... . .. . 87
Warning/indicator lights ..... ... .. .. . 15
El ectromechan ical power assist .... .... 201
Elec tronic differen tial lock . ....... .... 197
Warning/ind icator lights . ............ 18
E lectronic differential lock (ED L)
Warning/ind icator lights ..... ... .. .. . 19
El ectronic immob ilizer . . . . . . . . . . . . 26, 32
Elec tronic power control (EPC)
warning/ind icator light . . . . . . . . . . . . . . 20
E lectronic spe ed limiter .. ..... ... .. .. . 30
El ectronic Stab ilizat ion Con trol (E SC) . .. 19 7
Warning/ind icator lights ........ .. .. . 18
Emergency actuat ion
Doors ........ .. .. ........ ...... .. 37
Luggage compartment lid .... ...... .. 40
Pa rking loc k ... .. ... ... .... ..... .. 119
Power sunroof . .. ........... .. .. .. . 44
Emergency brak ing .... .. .. ... ..... .. . 87
Emergency flasher .... .. ..... .... . .. . 47
Warning/indicator lights ..... ... .. .. . 23
E mergency operation
P a noramic s unroo f ....... .... ...... . 45
S un shade (roo f) .... .. ..... ... .. .. . 45
E mergency start ing ..... ........... . 281
Eme rgency towing . ....... ..... ..... 283