2008 AUDI S8 sensor

Changing a wheel When you change a wheel, the new tire must be initial­
ized.
Turn on the ignition.
Press the
I CAR I function button.
- Select
Systems in the CAR menu .
- Selec t
Tire pressure monitoring .
-Select Initialize wheels ~ page 43, fig. 27.
Programming is necessary:
• After the tires have been rotated on the vehicle (including use of
the spare tire*),
• If tires with new wheel sensors are used.
All pressure warning and system malfunction indicators in the
display will be canceled.
If a wheel change has been made, it is necessary to complete the
Initialize wheels function.
Th e tire pressure monitoring system is not available dur ing the
programming process and no pressure and temperature values are
displayed on the MMI display.
After you have selected the funct ion, the new wheels are
programmed and the actual pressures are stored. This learning
phase can take up to 20 minutes driving time.•
Contro ls a nd eq uip­
ment
Driver information display
Malfunctions
A malfunction can have various causes.
Fig. 29 Display:
Syste m malfunction
If the ...., warning light in the instrument cluster flashes for approxi­
mately one minute and then remain continuously illuminated and
additional ly the
=> fig. 29 symbol appears in the display, the
tire pressure monitoring system is not available. This can have
various causes.
• If the message appears at the end of the learning process, the
system cannot recognize the wheels installed on the vehicle. This
can be because one or more wheels without a wheel sensor were
insta lled .
• A wheel sensor or other component may have failed.
• The system has detected more than 5 wheels with wheel sensors
in the vehicle, for example when carrying snow tires.
• A tire was changed but the
Initialize wheels function was not
activated
=> page 45.
• Audi replacement parts were not used.
• If snow chains are being used, system function can be compro­
mised due to the shielding properties of the chains.
• The tire pressure monitoring system may not be available
because of a radio malfunction.
Vehicle care I I irechnical data

Driver inf ormation displ ay
• Transmitters with the same frequency, such as radio head­
phones in the vehic le or rad io equipment, can cause a temporary
disruption of the system through excessive electromagnetic fields .
• Elimi nate the in terference if possible/if you can and then re-start
the
Initi alize w heel s function . If the warning light comes on again,
you shou ld con tact your autho rized Audi dea ler im mediately to have
the prob lem corrected .
• Do not use commerc ial ly avai lab le tire sea lants . O therwise, t he
e lectrica l components of the tire pressure monitoring system wi ll
n o longer work properly and the sensor for the tire p ressure moni ­
toring system wi ll have to be replaced by a qua lified workshop. •

Openin g and clos ing
All the doors and the rear lid are locked by the central locking
system when you lock the vehicle. You can se t whether generally
only the driver's door or all doors and the rear lid should be
unlocked when you open the vehicle in the MM I menu
C entral
l ock ing
to suit your individual desires=> page 52.
Unlocking the veh icle
You can un lock the vehicle from outside ei ther by using the remote
control
or by turning the key inside the driver's door lock. When you
unlo ck your vehic le:
• The anti -theft alarm system is deactivated briefly .
• The vehicle interior l ights illuminate for approximate ly 30
seconds .
• All turn signal lights will flash twice when the car is unlocked.
• Afte r unlocking the vehic le, you have
60 seconds to open a door
or the rear lid . After
60 seconds, th e vehicle automatically locks and
t he anti -theft a lar m system activates agai n.
The rear lid can be locked or unlocked e ither by using the remote
control
or by turning the key inside the driver 's door lock. Unlocking
the vehic le wit h the remote contro l will on ly
unlock the rear lid, to
open it , the lid handle needs to be pressed.
Lo ckin g the vehicle
Yo u can lock the vehicle from outside either by using the remote
control
or by turning the key inside the dr ivers's door lock . When
you
lo ck the veh ic le:
• All doors and the rear lid are locked.
• All turn signal lights will flash once when the car is locked .
• The anti-theft alarm system is activated. The horn of the anti ­
theft alarm system will sound and the anti -theft a larm system readi ­
ness l ight, located in the upper part o f the driver's door panel, w ill
start to blink .
• The vehicle interior l ights turn off.
Unlo cking and l ocking th e vehicle using the Ad vanced
Key *
The Ad van ced Key * feature is a keyless system which allows you to
unlock the vehicle via sensors in the door hand le . Locking is likewise
keyless using a lock button . Each door is equ ipped w ith a sensor and
lock button.
Power side door closer*
The veh icle is equipped with a power side doo r c lose r. When closing
a door, you s imp ly need to gently push on the door . The door w ill
t hen automa tically c lose by
itse lf => page 53 .
Autom atic l ockin g
The automatic lock ing fea ture locks all the vehicle doors and the
rear lid when you drive faster than
9 mph ( 1 5 km/hl. This funct ion
can be turned on and off in the MMI
Central locking Menu
=> page 52 .
You can unlock the vehicle from the inside by :
• r emovi ng the key from the ignition switc h (the vehicle wi ll auto ­
matically un lock itse lf) or
• pressing the unlock part of the power lock swi tch
m or
pulling the door handle (once to open the door) .
& WARNING
• When you lock your veh icle from out sid e, nobody -espe cially
children - should remain in side the vehicle. Remember , when you
l oc k the vehicle from the out side the windo ws ca nnot be opened
from the inside .
• When you leave the vehi cle , alwa ys remove the ignition key and
take it with you. Thi s will prevent passengers (children , for
e x ample) from ac cidentally being l ocked in the vehi cle should they
ac cidentally pre ss the power locking switch in the doors .
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Opening and clo sing
Ap plies to vehicles : wi th Adv anced Key
Unlocking the vehicle
You can unlock the doors and rear lid without using the
remote control.
F ig . 46 Ad van ced Ke y:
Un locki ng a door
Grab the door hand le. The door automatica lly unlocks.
Pu ll the doo r handle to open the door.
A door will un lock as you approach a door hand le and the system
senses that you have an authorized key . This applies to each door on
the vehicle . The authorized key only has to be within a range of
about 5 feet (1 .5 meters) from the respective door .
Whenever you un lock a door, the driv er's door also unlocks . You can
set the power lock syste m using the menu in the MMI system, for
example , if you want to unlock just one specific door , or all the
vehic le doors
=> page 52 .
[ i J Tips
If your vehicle has been standing for an extended period, please
note the following:
• To conserve battery power, the sensor wil l turn off after a few
days. When you come back , you will have to pull on the doo r handle
once to unlock the door and then a second time to open the door . •
Again , to conserve battery power so that you can start the
vehic le after it has been standing for a long period, the vehicle's
energy management system will switch off any convenience
features not necessary . You wi ll not be able to unlock your vehicle
using the keyless system .•
A pplies to vehicles : with Adva nc ed Ke y
Locking the vehicle
You can lock the doors and rear lid without using the
remo te control.
F ig . 4 7 Advan ced Key:
L oc king th e vehic le
- Move the selector lever into P.
- Press the lock button in the door hand le to lock the
vehicle ~& -
You can lock each door on the vehicle . Remember, an authorized key
must be within 5 f t (1 .5 meters) of the doo r.
The selector lever must be in the P position , otherwise the vehicle
wi ll not lock.
& WARNING
• When you lo ck your veh icle from out side , nobody -espec ially
c hildren -should rem ain insid e the vehicle . R emember , when you
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Clear vision
Lights
Switching the headlights on and off -'t/-·
In the "AUTO" position, a light sensor automatically
s w itches t he head- and taillights on and off in respo nse to
l igh t con ditions.
Fig . 56 In stru ment
pan el: lig ht sw itch
Switching on automatic headlight control
- T urn th e light switch to AUTO => fig. 56 .
Switching on the side marker lights
- Turn the light switch to ~oo~.
Switching on th e headlights and high beam
- T urn t he light swi tch to io.
- Push the high beam leve r forw ard towards t he instru -
me nt panel
=> page 73 .
Switching off the lights
- T urn t he light switch to 0 .
Contro ls a nd eq uip­
ment
Clear vision
The head lights only work when the ignition is switched on . While
starting the engine or when switching off the ignition, the head ­
lights will go off and only the side marker lights will be on.
After starting the engine, the xenon headlights are automatically
adjus ted to the load and angle of the vehic le (for example, during
acceleration, braking) . This prevents oncoming traffic from experi ­
encing unnecessary headlig ht g lare from your xenon head ligh ts .
If the system is not operating properly, a warning symbol in the
Auto -Check Control is displayed
=> page 36.
With the side marker lights or head ligh ts switched on, the sym bol
next to the light switch illuminates
:oo: .
Daytime running lights
• USA models : The daytime running lights wi ll come on automati­
ca lly when the ig nition is turned on and the ligh t
switch=> fig. 56 is
in the
O position or the AUTO position (only in day light conditions).
The
Daytime running lights function can be turned on and off in the
MMI menu
Exterior lighti ng => page 70 => & .
• Canada models: The dayti me ru nn ing lights wi ll come on auto ­
matically when the ignition is turned on and the light switch
::::> fig. 56 is in the O position or the AUTO p o siti on (only in daylight
conditions)
=> & .
Automati c headligh t control
In the switch position AUTO the a utomatic headligh t cont rol is
turned on . The low beams are turned on automa tica lly through a
light sensor as soon as ambient brightness (e.g . when driving into a
tunnel) fa lls below a value preset at the factory . When ambient
brightness increases again, the low beams are turned off again
automatically =>& .
In the AUTO pos it ion the low beams are switched off automatically
when the ignition is turned off. If the high beams were switched on,
they w ill come o n again the next time the automatic head ligh t
~
Vehicle care I I irechnical data

Clear vision
control is activated. The high beam function must first be switched
on in the MMI
=> page 70 .
Light Sensor Malfunction
In the event of a light sensor mal fu n ct ion, the driver is notified i n the
instrument cluster display :
@ Automatic headlights/automatic wipers defe ctive
For safety reasons the low beams are turned on permanently with
the switch in
AUTO . However, you can continue to turn the lights on
and off us ing the light switch . Have the light sensor checked as soon
as possib le at a dealership .
& WARNING
• Never use dayt ime running lights to see where you are going .
The y are not bright enough and will not let you see f ar enough
ahead for s afet y, espe cially at du sk or when it is d ark. Alwa ys
switch on the low beams at dusk or when it is dark .
• Autom atic he adlight s are onl y intended to a ssist the dr iver.
The y do n ot relie ve the dri ver of his re spon sibility to che ck the
headlights and to turn them on manuall y according to the current
light and vi sibility condi tion s. For example , fog and rain cannot be
dete cted b y the l ight sen sors . S o alway s switch on the he adlights
under these wea the r condition s and when driving in the dark
gD .
• Cra shes can h appen when you c annot see the road ahead and
when you cannot be seen b y other motori sts .
- Alway s turn on the headlight s so that you can see ahead and
s o that others c an see your c ar from the ba ck.
[ i ] Tips
• With the switch in AUTO front fog lights and rear fog lights
cannot be turned on in addition. • I
f you remove the ignition from the ignition lock while the head ­
li ghts are s til l on, a bu zzer w ill sound as long as the driver's door is
open to remind you to turn off the lights .
• Always observe t he specific local regulations for your area as to
when to use your lights .•
Adjusting exterior lighting
The functions are set in the MM/.
F ig . 57 MM I di spla y:
E xt eri or ligh ting
- Pressthe [CAR ]function button.
- Select
Systems in the CAR me nu.
- Selec t
Exterior lighting. The menu Exterior lighting
appears => fig. 57.
C oming home
The Coming home function ensures that after turning off the igni ­
tion and op ening the driv er's door
the vehicle periphery is il lum i­
nated in the dark . In addition, the front fog lights, the tail lights and
t he license plate lig ht are turned on . O n-t ime can be set fo r a period
from
O (off) to 60 seconds. ~

Clear vision
Fig. 75 Left rear roof­
lining: Vanity mirror
folded down
-To fold down, tap the rear edge of the mirror as indicated
by
arrow~ page 79, fig. 74.
As the mirror folds down, it automatically il lumina tes.•
Wiper and washer system
Windshield wiper ~
The windshield wiper lever controls both the windshield
wipers and the washer system.
Fig. 76 Windshield
wiper lever
The windshield wiper lever~ fig. 76 has the following posi ­
tions:
One-touch wiping
-Move the lever to position G) , when you want to wipe the
windshield
briefly.
Intermittent wiping <:S;)l (activating rain sensor)
-Move the lever up to position ®·
-Move switch © up or down, to adjust the sensitivity of
the rain sensor.
Low wiper speed
-Move the lever up to position G).
High wiper speed
-Move the lever up to position @.
Automatic wiper/washer
-Pull the lever to position© (toward the steering wheel)
and hold.
-Release the lever. The washer stops and the wipers keep
going for about four seconds.
Turning off the wipers
-Move the lever back to position @.
The windshield wipers and washer only work when the ignition is
turned on.
The rain sensor is only activated with the wiper leve r set to position
G) . When it starts to rain, the rain sensor will automatically activate
the intermittent wiping mode.
To reduce the sensitivity of the sensor, move switch
@ down. To
increase the sensitivity, move the switch up. The higher you adjust
the sensitivity, the faster the sensor will react when it senses mois-
.,_

ture on the windshield. The rain sensor wiper intervals depend on
t he sensitivi ty setting as well as vehic le speed . Dur ing brief s tops,
wiper motion wil l adjust in re lation to the amount of rain on the
windshield .
During br ief stops, e.g. at a red light, wiper mot ion wil l auto mati ­
ca lly be reduced to the next lower speed . Wipers a lready turning at
low speed. change to i nterm ittent w ip ing.
When the ignition is turned on, the washer jets are heated .
With the low beam headlights switched on, p ull the wiper lever
towards you only briefly to clean the windshield. Ho ld ing the w iper
lever wou ld a lso engage the headlight washer system each time you
clean the w inds hie ld and wou ld dra in t he washer flu id reservoir
pr ematurely .
& WARNING
• Wiper bl ade s are cruc ial for safe driving! Only when they are in
good condition are they able to clear the window s properly to
provide uncompromising visibilit y. Worn or damaged wiper blades
are a safety hazard
::::> page 82 , "In stalling new wiper blade s"!
• The rain sensor is only designed to a ssist and support the
driver . It r em ains entirely th e driver' s respon sibility to monitor
outside weather condit ions and to manually activate the wipers as
s oon a s rain or drizzle reduces visibility through the windshield.
• The windshield mu st not be treated with water-repellent mate ­
rials . They c an in crea se gl are under poor visibility condition s such
as wetness , darkness , or when the sun is low on the horizon. In
addition , they can cau se the wind shield wipers to chatter.
0 Note
In free zing or near freezing conditions:
• Always check that the wiper b lades are not frozen to the glass
be fore you turn the w ipe rs on. Loosen a wiper b lade w hich is frozen
Controls and equip­ ment
Clea r vision
in place before operating the wipers to prevent damage to the wiper
bl ade or the wiper motor.
• Do not use the wipers to clear a frosted window. Using the
wipers as a conve nien t ice scraper will des troy the wiper blades .
• Before you take your vehic le to an automatic car wash, make sure
you have the w inds hield w iper system switched o ff (lever in p osition
O), otherwise the windshield wiper system could get damaged in the
car was h if it should suddenly come o n.
[ i ] Tips
• Make sure the washer flu id reservo ir in the engine compartmen t
is topped off before going on a long trip . Look
up:::> page 323 for
check ing and f illing the washer conta iner.
• I f you sw itch off the ignition with the windshield wiper lever st ill
in the inte rval wi pe pos ition and t hen com e back a wh ile la ter a nd
drive off, the rain sensor wil l reactivate itself after the vehicle speed
has e xceeded 4 mph (6 km/h) .
• Worn or dirty windshie ld wiper b lades cause smearing which
ca n affect t he opera tion of the ra in senso r. Check the condi tion of
your windshield wiper b lades regu lar ly . •
Headlight washer system
The he adlight washer sy stem cle ans the he adlig h ts.
-Oper ate the win dshiel d w ip er/was her sy stem G) wit h th e
hea dlights t urned o n by ho ld ing th e l ever fo r lo nge r than
on e seco nd ::::.,
page 80, fig. 76.
The washe r jets extend f orward out of the fron t bumper dr iven by
water pressure to spray the front head lights with water .
You should inspect the head lights regu lar ly (for examp le when refu -
e ling) a nd c lean o ff any sol id dirt or i nsects from the lenses.
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