2012 AUDI A8 wheel

192 Intelligent technology
be advisable to mount winter tires (or all-sea­
son ti res) for improved driveability and brak­
ing: these t ires must be mounted on
all four
w heels .
See also c> page 250, Winter tires.
Snow chains
Where snow cha ins are mandatory on certa in
roads, this normally a lso applies to vehicles
with A ll Wheel Driver=:>
page 251, Snow
chains.
Replacing wheels /t ire s
Vehicles w it h All Wheel Dr ive must always
have tires of the same size . Also avoid tires
with different tread depths. For details see
page
c> page 246, New tires and replacing
tires and wheels.
Off-Road driv ing?
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 refe r to
i=>page 195.
A WARNING
Always adjust your driving to road and traf­
fic condit ions. Do not let the extra safety
afforded by All Whee l Drive tempt you into
taking extra risks.
-Although the All Whee l Drive is very ef­
fective, a lways remember that b raking
capacity is limited by t ire traction. You
should the refore not dr ive at excessive
speeds on icy or slippery road su rf a ces.
- On wet road su rfaces, be careful not to
dr ive t oo fast becau se t he front wheels
co uld beg in to s lide on top of the wa ter
(aquaplaning) .
If this should occ ur, you
wi ll have no warning from a sudden in­
crease in engine speed as with a front­
wheel drive vehicle. A lways drive at
speeds wh ic h 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 energy system
is not driven for a long per iod of t ime, t he bat­
te ry is discharged by idling current consume rs
(e.g. immobili ze r). In certa in circumstan ces it
ca n res ult in the re be ing insufficien t energy
available to start the eng ine.
Intelligent energy management in your vehi­
cl e ha ndles the dist rib ution o f electr ica l ene r­
gy. Start ing abili ty is m arkedly improved and
the life of the battery is extended .
Bas ica lly, energy management consists of
batt ery diagnosis , idling current manage­
ment
and dynamic energy management .
Battery diagnosis
Battery diagnosis continuously determines
the state of the batte ry. Sensors determine
batte ry voltage, battery cu rr e nt and battery
tempe ratu re. This de termines the cur ren t
state o f cha rge and t he power o f th e battery.
Idling current management
Idli ng current management reduces energy
consumpt ion while the vehicle is standing.
With the ig nition sw itched off, it controls the
energy supp ly to the variou s ele ctri ca l compo ­
nen ts. Da ta from ba ttery d iagnos is is co nsid­
ered.
Depend ing on the batte ry's state of cha rge,
i ndivid ual con sume rs a re g radually turned off
to prevent excessive discharge o f the battery
and th us main tain starting capabi lity.
Dynamic energy management
While the vehicle is being d riven, dynamic en­
ergy ma nagement distr ib utes the energy ge n­
era ted a ccord ing to t he needs of the individ u-
al components.
It r egula tes consumption, so
t h at more e lectrical energy is not being used ..,.

drive at the maximum permissible speed. Re­
duce your speed even more if load, weather or
wind condit ions are unfavorable -part icularly
when going downhill.
Reduce vehicle speed
immediately if the trail­
er shows the slightest sign of swaying .
Do not
try to stop the swaying by accelerating.
Observe speed limits . In some areas, speeds
for vehicles towing trailers are lower than for
regular vehicles .
A lways apply brakes early. When driving
downhill, shift into a lower gear to use the en­
gine braking effect to slow the vehicle . Use of
the brakes a lone can cause them to overheat
and fail.
Coolant temperature
The coolant temperature gauge c:> page 10
must be observed carefully. The coo lant tem­
perature can increase if you drive on long in ­
clines in a low gear at high engine speeds. Re­
duce your speed immed iate ly if the L EDs in
the top part of the display turn on.
F or more information about indicator lights,
refer to.
i::> page 15.
A WARNING
Anyone not properly restrained in a mov­
ing vehicle is at a much greater risk in an
accident . Never let anyone r ide in your car
who is not properly wear ing the restra ints
provided by Aud i.
Trailer towing tips
Important to know
Your veh icle hand les different ly when tow ing
-
a trailer because of the addit ional weight and
d ifferent weight distribution . Safety, perform­
ance and economy will greatly depend on how
carefully you load your trailer and operate
your ng .
Before you actually tow your trailer, practice
turning, stopp ing and back ing up in an area
away from traffic. Keep practicing until you
Trailer towing 201
have become completely familiar with the way
your vehicle-trai ler combination behaves and
responds .
Backing up is difficult and requires practice .
Backing up with a t railer generally requires
steering action opposite to that when backing
up your vehicle without a tra iler.
Maintain a greater distance between your ve­
hicle and the one in front of you . You wi ll need
more room to stop. To compensate for the
trailer, you w ill need a larger than normal
turning rad ius.
When passing, remembe r that you cannot ac­
ce lerate as fast as you norma lly would be­
cause of the added load. Make sure you have
enough room to pass. After passing, allow plenty of room for your trailer before chang­
ing lanes again.
Avoid jerky starts, sharp turns or rapid lane changes.
(D Tips
- Do not tow a trailer during the break-in
period of your vehicle.
- If you tow a trailer, your Audi may re ­
quire more frequent maintenance due to
the extra load
c:> page 280.
Parking on a slope
Do not park on a slope with a trailer. If it can­
not be avoided, do so only a~er doing the fol­
lowing:
When parking:
.,. App ly the foot brake.
.,. Have someone p lace chocks under both the
vehicle and the trailer wheels .
.,. With chocks in place, slowly release the
brakes until the wheel chocks absorb the
load.
.,. Turn the wheels towards the curb .
.,. Apply the parking brake .
.,. Select the P selector lever posit ion .
When restarting after parking:
.,. Apply the foot brake.
•
•

202 Trailer towing
• Start the engine.
• Se lect the D selector lever position.
• Re lease the park ing brake and slowly pull
out and away from the wheel chocks.
• Stop and have someone retrieve the wheel
chocks.
(D Tips
If you move the selector lever of the auto­ mat ic transm ission to P before applying
the park ing brake and before blocking the
wheels, you may have to use more force
later to move the lever out of the P posi­
tion.

Cleaning and protect ion
General information
Regular core preserves vehicle value.
Any automobile is exposed to industrial
fumes , corrosive road salt, etc. A well cared
for Audi can look like new many years after purchase . Regu lar and correct care w ill con­
tr ibute to maintaining the beauty and value of
your Aud i.
F u rth ermor e, good c are may be a conditi on
for subs tantiati ng a w arrant y claim sho uld
c orrosion d amag e or paint d efects oc cur.
Your authorized Audi dealer has a variety of
dedic ated veh icle-car e products and can ad ­
vise which ones to use for cleaning the exter i­
or and interior of your vehicle.
Whether you use products recommended by
Aud i or other commercially available clean ing
agents, please make sure you apply them cor­
rectly .
.&, WARNING
-Cleaning agents may be poisonous. Keep
them out of the reach of children.
- Heed all caut ion labels.
- Always read directions on the container
before using any product. Follow the di­
rect ions carefu lly.
- Most chemical cleaners are concentrated
and have to be diluted .
- Use spot removing fluids only in well
ventilated areas.
- Do not use gasoline, kerosene, d iesel
fuel, nail polish remover or other volatile
fluids. They may be toxic, flammab le or
haza rdous in other ways. Do not wash,
wax or dry the vehicle with the ign it ion
on or the engine running.
- Do not clean the undersides of chassis,
fenders, wheel covers, e tc. w ithout pro­
tecting your hands and arms. You may c u t yourself on sharp -edged metal parts .
Cleaning and protec tion 203
- Moisture and ice on brakes may impair
brak ing effic iency¢
page 189, General
information.
Test the brakes carefully
each time you wash the vehicle.
@) For the sake of the environment
Select on ly environmentally friend ly clean­
i ng products . Leftover cleaning products
should not d isposed of in the household
waste.
Care of exterior
Washing
Frequent washing protects the vehicle .
The best protection against environmental i n­
fluences is
frequent washing and waxing . How
often t his is required depends on:
- How much the veh icle is used
- Where the veh icle is parked (garage, in the
open under trees, etc.)
- The seasonal and weather conditions
- Environmental infl uences
T he longer b ird droppings, insects, tree resin,
road and indus tria l gr ime, ta r, soot, road salt
and other materials remain on the vehicle body, the more lasting their destructive ef­
fects wi ll be . High temperatures caused by ex­
posure to intense sun light intens ify the corro­
s ive effect, particularly when humid ity is high
as well.
Under certain circumstances,
weekl y washing
may be necessary. Under other cond itions, a
monthly washing and waxing may be ade­
quate .
After the winter, the underside of the vehicle
should be thoroughly washed, preferab ly in a
professional car wash .
.&, WARNING ,_
A lways read and heed all WARNINGS and
other information¢
page 203 .
•
•

204 Cleaning and protec tio n
Automatic car wash
The vehicle can be washed in almost any
modern automatic car wash .
The vehicle paint is so durable that the vehicle
can normally be washed without problems in
an automatic car wash. However, the effect on
the paint depends to a large extent on the de­
sign of the facility, the filte ring of the wash
water, the type of wash and care mater ial , etc.
I f the pa int has a dull appearance afte r going
through the car wash or is scratched, bring
this to the attention of the operator immedi­
ately. If necessary, use a different car wash.
Before going through a car wash, be sure to
take the usual precautions such as closing the
windows and power roof . Factory installed an­
tennas must not be removed.
I f you have installed additional accessor ies on
the vehicle - such as spoilers, roof rack, etc. -
it is best to ask the car wash operator if these
should be removed .
When driving through an automatic car wash,
fi rst se lect the N position and then switch the
engine off. If you switch the engine off when N is engaged, the transmission remains in N
for approximately 30 m inutes and then Pis
engaged.
Further information for automatic gearboxes
~ page 109.
A WARNING
Always read and heed all WARNINGS and
other information
r:::;, page 203.
- Fo ld the exterior mirrors - flat there is a
risk of damaging the exterior mirrors .
Power folding exterior m irrors must not
be folded in or out by hand. Use the pow­
er function!
- Compare the track of your vehicle with
the d istance between the guide rails of
the facility - there is a risk of damage to
the wheels and tires . - Compa
re the height and width of your
vehicle with the height and width of the t u nnel at the facility .
· Washing the vehicle by hand
A lot of water is needed when washing a vehi­
cle by hand.
.,. Before yo u start wash ing, make su re you
have read and understood the WARNINGS
r:::;, A in General information on page 203.
.,. First soak a ll dried dirt unt il it is soft , then
rinse it off.
.,. As you clean your vehicle, start with the
roof and work your way down to the bottom,
using a sponge, a sponge glove or a clean brush .
.,. Rinse the sponge or the sponge g love often,
flushing it clean eac h time.
.,. Use spec ial car shampoo only for very per­
sistent di rt.
.,. Rinse the car thoroughly w ith water.
.,. Use a chamois leather to gently w ipe the ex-
terior dry.
Use a separate sponge for cleaning the
whee ls , door si lls and other regions exposed
to road dirt. In this way, you will not scratch
the pa int with coarse particles imbedded in
the sponge the next time you wash the car.
A WARNING
- Do not clean the underside of the chas­
sis, fenders, wheel covers, or other hard
to reach parts without protect ing you r
hands and arms. You may cut yourself on
sha rp-edged metal parts .
- Always read and heed all WARNINGS and
other info rmation
c;, page 203.
(D Note
- Never try to remove dirt, mud or dust if
the surface of the veh icle is dry. Never
use a d ry cloth or sponge, s in ce this
co uld scratch your vehicle's paint or win -
-
dows. .,.

208 Clea ning and protec tio n
-Never use warm or hot water to remove
snow and ice from windows and mirrors.
This could cause the glass to crack.
- To prevent damage to the wires of the
rear defogger, do not place any adhesive
stickers on the inside of the rear window
over the wires.
- To help prevent d irt from scratch ing the
window, always scrape in a forward d i­
rection - pushing the scraper away from
you - never back and forth .
Cast (light) alloy wheels
Cast (light) alloy wheels require special care.
• Wash the wheels with a sponge or hose
brush every other week.
• For deep cleaning afterwards, use only a
dedicated
acid -free cast alloy wheel cleaner.
• Rub a coat of
liquid wax onto the r ims every
three month . Be sure to reach and treat a ll
parts of the rim.
To preserve the decorat ive appearance of the
cast alloy wheels, some special care is neces­
sary. In addit ion to road dirt and sa lt, b rake
dust is a lso cor ros ive. If left o n for too long,
b rake dust can cause pitting.
Use only special
acid-free cleaners formulated
for a lloy rims. Safe products are available at
your Aud i deale r. Neve r leave the cleaner on
the r ims longer than spec ified on the label.
If
not rinsed off promptly, the acid contained in
some cleaners can attack the threads on the
wheel bolts .
Never use ab ras ive or metal polishing clean ­
ing agents. If the protective coating has been
chipped, e .g. by kicked up road dirt, touch it
up as soon as possible .
A WARNING
- Moisture and ice on brakes may affect
braking efficiency¢
page 189, General
information.
Test the brakes carefully
each time you wash the veh icle .
-
-Always read and heed a ll WARNINGS and
other information
¢ page 203.
Body cavity sealing
The body cavity sealing does not need to be
checked.
All body cav it ies which could be affected by
cor rosion have been thorough ly protected at
the factory.
T his sealing does not require any inspection or
additional treatment. If any wax shou ld seep
out of the cavity when the ambient tempera­
ture is high, it can be removed with a p lastic
scraper and a suitable solvent.
A WARNING
-Solvents can be dangerous.
- Benzine is flammab le and toxic . If you
use benzine for removing the wax, keep
sparks, flame and lighted cigarettes
away. Never dump benz ine on the
ground, into open streams or down sew­
age dra ins.
- Be sure to observe all safety and environ­
mental regulat ions . Follow all instruc­
tions on the container .
-Always read and heed all WARNINGS and other information ¢
page 203.
Chassis
Have the undercoating checked for damage
from time to time.
The lower body shell of your Aud i is also thor­
oughly protected against corros ion.
Any damage to the undercoating ca used by
road hazards should be repaired prompt ly .
A WARNING
-Too much undercoating in the wrong p la-
ces can cause a fire.
- Do not app ly additiona l undercoating or
r u stproofing on or near the exhaust
manifold, exhaust pipes, catalytic con-
verter or heat shields. While driving, the
~

substance use d for u ndercoating cou ld
overheat an d cause a fire.
- Always read and heed all WARNINGS and
other information
¢ page 203.
Exhaust tail pipes
Road sa lt and other corros ive materials will
damage the mater ial in the exhaust tail p ipes
if they are not cleaned regu larly . Do not clean
the ta il p ipes with wheel cleaner, paint polish,
chrome polish or othe r abrasive cleaners .
C lean the tail p ipes with ca r ca re products
that are s uita ble for stain less stee l.
Your authorized Audi dealer can provide clean­ i ng p rod ucts that have been tested and ap­
p roved fo r your vehicle.
Care of interior
Infotainment components
The MMI/RSE* disp lay may be cleaned with a
soft cloth and commercially-ava ilable "LCD
cleaner" . The cloth should be coated light ly
when the clean ing solution when cleani ng the
d isplay.
The MMI/RSE* contro ls must be cleaned first
with a brush so that dirt does not enter the
un it o r enter between the buttons and the
h ousing. Then w iping the controls with a clot h
dampened wi th d ish dete rgent and water is
recommended.
(D Note
To preve nt sc ratches, only clean the dis­
p lay when it is d ry.
- To p reven t damage, ma ke s ure fluids do
not enter the cont rols.
Aluminum trim
Use only neutral-pH produc ts to remove spots
and depos its from alum in um s urfaces.
C hr ome ca re products and alkaline cleaners
will attack alum in um s urfaces and can dam­
age them over time.
Cleaning and protec tion 209
A WARNING
A lways read and heed all WARNINGS and
other information
¢page 203.
Fabrics and fabric coverings
Fabr ics and fabric cover ings (e.g. seats, door
trim pa ne ls, etc.) shou ld be cleaned at regular
i n tervals w it h a vac uum cleaner. This removes
s ur face di rt particles which cou ld become em­
bedded in the fabri c throug h use. Ste am
cleaners sho uld not be used, beca use the
steam tends to p ush the dirt deeper into the
fabric and lock it there .
Normal cleaning
Generally, we recommend using a soft sponge
o r a lint -free microfibe r clo th to the clean fab­
ric. Br ushes shou ld only be used for carpets
and floor mats, since other fabric surfaces
could be harmed by br ushes.
Norma l su rface s tains c an be cleaned using a
commerc ially availab le foam cleaner . Spread
the foam on the s urface of t he fabric with a
soft sponge and work it in gently. Do not satu­
rate the fabric. T hen pat the foam dry us ing
absorbe nt, dry cloths (e.g. m icrofiber cloth)
and vacuum it after it has dried completely.
Cleaning stains
Stains caused by beverages (e .g. coffee, fr uit
juice, etc.) can be treated with a mild deter­
gent solution. Apply the detergent sol ution
with a spo nge. In the case of stubborn stains,
a detergent paste can be applied directly to
the stain and worked into the fabric. After­
wards, use copious amounts of clean water to
remove the rem aining de terge nt. Apply the
w at er wit h a d am p clot h or sponge a nd pat
the fabric dry with an abso rbent, dry clot h.
Stains from choco late or makeup should have
de terge nt pa ste (e.g. o x-gall soa p) rubbed i n­
to them. Afterwa rds, remove the soap wi th
wa ter (damp sponge) .
Alcohol can be used to treat stains from grease, o il , lipstic k or a ballpoin t pen. M elted ..,_ •
•

214 Cleaning and protec tio n
- Before reaching into the front pane l, al­
ways switch off the ignition. Otherwise,
the windshield wiper system could un in­
tent ionally be switched on, possib ly
causing personal injury from the moving
wiper linkage .
- Never reach into the area around or
touch the radiator fan. The auxiliary fan is temperature controlled and can switch
on suddenly- even when the ignit ion is
off.
- Do not wash, wax or d ry the engine w ith
the engine running. Moving or ho t pa rts
cou ld inju re you .
- Do not clean the underside of the chas­
sis, fenders , wheel cove rs, or other hard
to reach parts w ithout protecting your
hands and arms . You may cut yourse lf on
sharp-edged metal parts.
- Always read and heed all WARNINGS and other information
c::> page 203 .