2014 AUDI A8 oil pressure

Instruments and warning/indicator lights 17
Seek professional assistance if the battery
charge leve l is too low.
(•) Low battery charge: battery will be
c harged while driving
If the indicator light turns on and the mes­
sage appears, there may be limited start ing
ability.
If th is message turns off after a little wh ile,
the battery charged enough wh ile driving .
If the message does not turn off, have your
author ized Audi dealer or qualified workshop
correct the malfunction.
~ Engine oil pressure malfunction
The red engine oil pressure warning symbol
requires immediate service or repair . Driving
with a low-oil-pressure indication is likely to
inflict severe damage to the engine.
• Switch off engine and check oil level
If the indicator light turns on and the mes­
sage appears, the oil pressure is too low.
.. Pull off the road.
.. Stop the vehicle .
.. Turn off the engine.
.,. Check the engine oil level¢ page 236 .
.. If the engine oil level is too low, add engine
o il ¢
page 237 . Make sure that the oil pres­
sure warning symbol. appears no longer
in the d isplay before you start driving again.
.,. If the engine oil level is correct and the indi­
cator light st ill turns on, turn the engine off
and do not continue driving. Seek professio­
nal assistance.
(D Tips
- The engine oil pressure symbol. is
not an indicator for a low engine oil lev­
el. Do not rely on it. Instead, check the
oil level in your engine at regular inter·
vals, preferably each time you refuel,
and always before going on a long trip.
- The yellow oil level warning indication
Ill requires oil refill or workshop serv­
ice without delay. Do not wait until the red oil pressure
warning. starts to
flash before you respond to the low oil
level warning
II. By then, your engine
may already have suffered serious dam­
age.
~"' Engine oil level
• WARNING : Please add oil immediately
If the indicator light and the driver message
appear, add engine o il immed iately
¢ page 234.
II Add oil, max . x qt (l). You may continue
driving
When the symbol and the driver message ap ­
pear, add the amount of oil appearing in the
display at the next opportunity ¢
page 234.
@-Steering column lock
• Do not drive vehicle: Steering defective
If the indicator light turns on and the mes­
sage appears, there is an e lectronic steering
column lock malfunction. You cannot switch
the ignit ion on .
Do
not tow your vehicle because it cannot be
steered. Seek professiona l assistance .
!'II Steering lock: system fault. Please con­
tact deale r
If the indicator light turns on and the mes­
sage appears, there is an e lectronic stee ring
column lock malfunction.
Drive to your authorized Audi dealer immedi­
ate ly to have the malfunction corrected .
A WARNING
Your vehicle must not be towed in the
event of a malfunction in the elec tron ic
steering column lock because it cannot be
steered due to the locked steering . If it is
towed with the steering locked, there is
the r isk of an accident.

84 On the road
the stored position as soon as you switch on
the ignition.
Starting and stopping
the engine
Starting the engine
This button switches on the ignition and
starts the engine.
Fig. 85 Cente r console: START ENGINE S TOP b utton
Sw itching the i gni tion on /off
~ To switch the ignition on/off, press the
I START
ENGINE STOPI button. Do not press
the brake pedal while do ing this . D iesel
vehicles are preheated wh ile the ignition is
switched on.
Starting the engine
~ Press the brake pedal Q &,.
~ Press the I START ENGINE STOPI button
Q fig. 85 . The engine will start.
~ It is possible that there w ill be a slight delay
when start ing the engine for diesel vehicles
i n colder temperatures . T herefore, yo u m ust
hold the brake pedal down until the engine
sta rts . The indicator lamp
& il luminates
when the eng ine is preheated.
I f the engine does not sta rt immedia tely, the
starting process is automatica lly stopped af ­
ter a short time. Repeat starting proced ure.
Start -Stop -System *:
Note the information on Q page 88, Start­
Stop-System.
A WARNING ,-
- Never allow the engine to run in conf ined
spaces -danger of asphyx iat ion.
- Never turn off the engine until the vehi­
cle has come to a complete stop.
- The brake booster and power steering
only work when the engine is running. If
the engine is off, you have to use more
force when steering or brak ing. Because
you cannot steer and brake as you usual­
ly would, th is cou ld lead to crashes and
ser io us inju ries.
(D Note
- Avo id h igh engine rpm, full throttle and
heavy eng ine loads until the eng ine has
reached operating temperature -other­
w ise you risk engine d amage.
- T he engine cannot be started by pushing
o r towing the vehicle.
(1) Tips
- After a co ld e ngine is started, there may
be a brief pe riod of inc reased noise be­
cause oil pressure must first build up i n
t he hydraulic valve adjusters. This is nor­
ma l and not a cause for conce rn.
- If you leave the veh icle with the ignition
switched on, the ignit ion w ill switch off
afte r a certain period of time. Please
note that electrical eq uipment such as
exterior lights will sw itch off as well
when that happens.
Stopping the engine
~ Bring your vehicle to a complete stop.
~ Move the selector lever to the P or N posi­
tion.
~ Pr essthelS TART ENGINE STO Plbutton
Q page 84, fig. 85.
When you stop and the Start-Stop-System*
turns off the engine, the ignition remains on .
Press the I START
ENGINE STOPI button to
swi tch the ignition off d uring a stop phase.
IJII-

232 Check ing and filling
- Always disconnect the battery.
- Never smoke or work near heaters or open flames . Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and persona l in ­
jury while the engine is running or being started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repa ir
with the engine running:
- Fi rst, fully apply the parking bra ke,
move se lec to r lever to "P" (Park) .
- Always use extreme caution to preven t
clot hing, jewe lry, or long h air from ge t­
ting caught in the radiator fan, V -belts
or other moving parts, or from contact­ ing hot parts . Tie back hair before
start ing, and do not wear cloth ing that
will hang or droop into the eng ine .
- Min imize exposure to emission and
chemica l hazards¢ ,&..
A WARNING
California Propos ition 65 Warning:
- Engine exhaust, some of its constituents,
and certa in veh icle components conta in
or emit chemicals known to the State of
Califor nia to cause cancer and b irth de­
fec ts a nd reproduct ive ha rm. In addition ,
certain fluids conta ined in vehicles and
certa in prod ucts of co mponent wear co n­
ta in o r emi t chemicals known to the
State o f Ca lifornia to cause can cer and
birth defects or ot her reproductive harm . -
Battery posts, terminals and re lated ac­
cessories conta in lead and lead com­
pounds, chemicals known to the State of
California to cause cance r and reproduc­
tive harms. Wash hands after handling .
(D Note
When adding flu ids, always make sure that
they are poured into the proper conta iner
or f iller opening, otherwise serious dam­
age to vehicle systems w ill occur.
® For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other ve hicle flu­
i ds, have yo ur vehicle inspected by a n au­
thori zed Audi dea le r.
Closing the engine hood
.,. Pull the hood down un til the pressure from
t he struts is reduced.
.,. Let the hood
drop down and latch in p lace .
Do not try to push it shut; it may fail to en­
gage ¢&_ .
A WARNING
-
A hood that is not completely latched
could fly up and b lock your view while dr iv ­
ing .
-When you close the engine hood, check it
to make sure the safety catch has p roper ­
ly engaged. The hood sho uld be flush
with the surrou nding vehicle body pa rts.
- If you notice while driv ing t hat the hood
is not s ecured prope rly, stop at onc e and
close it.

236 Check ing and filling
Engine oil consumption
Th e e ngine in your vehicle depends on an ad e­
quate amount of oil to lubricate and cool all
of its moving parts.
In o rder to prov ide effec tive l ubrication and
c o oling of i nternal engi ne components, all in­
t e rnal com bustion eng ines consume a certa in
a m ount of o il. O il consumption var ies from
engine to eng ine and may change significant ly
ove r the life o f the eng ine . T ypica lly, eng ines
with a specified break -in per iod (see
<=>
page 207) cons ume more oil during the
break -in period than they consume after oil
consumption has stabilized.
Under normal conditions, the rate of oil con ­
sumption depends on the quality and viscosity
of the oi l, the RPM (revo lutions per minute) at
which the engine is operated, the ambient
temperature and road condit ions. Further fac­
tors are the amount of oil d ilution from water
condensation or fuel residue and the ox ida ­
tion level of the oil. As any engine is subject to
wear as mileage bu ilds up, the oil consump­
tion may in crease over t ime un til replacement
of worn componen ts may become necessa ry.
W ith all these var iables coming into play, no
standa rd rate of o il consumption can be es­
tablished or specified. The re is no alterna tive
to regular and frequen t checking of the oi l lev­
e l, see
Note .
If the ye llow eng ine o il level warn ing symbol
in the in strumen t cluste r
II lights up, you
should c heck t he o il level as soon as possible
<=> page 236 or ¢page 237. Top off the oi l at
your ea rliest convenience <=>
page 23 7.
.&_ WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS
c::> ..&. in Working in the engine
compartment on page 231 .
(D Note
Driving with an insufficient oi l level is like­
ly to ca use severe damage to the eng ine.
-
(D Tips
- The oil pressure warn ing display. is
not an indicator of the oil level. Do not
r ely on it. Instead, check the oil level in
your engine at regular intervals, pref­
erably each time you refuel , and always
before going on a long trip .
-If you have the impression your engine
cons umes excessive amounts of oil, we
recommend that you consult your Aud i
dea ler to have the cause of your con cern
prope rly d iagnosed. Keep in m ind that
t he accurate meas urement o f oil c on­
sumption requ ires great care and may
take some t ime. Your Audi dea le r has in­
struct ions about how to measu re oil con­
sumption acc urately.
Checking the engine oil level
Applies to vehicles : wit h oil level indicator
Fig . 201 Disp lay: o il leve l in dicator
.,. Par k your vehicle o n a level su rface.
.. Shu t the eng ine off w hen it is warm.
.. Switch only the ignition back on.
.. Wait approximately two minutes .
.. Select:
!CAR I function button > Car systems
contro l button > Servicing & checks > O il
level.
.. Check the oil level in the display c::> fig. 201.
Add engine o il if the bar of the oil level ind i­
cato r is nea r "min"
c::> page 23 7.
Depend ing on the way the vehicle is dr iven
and the operat ing cond it ions, o il cons umption
can be up to 1/2 quart pe r 600 miles (0 .5 liter
per 1 ,000 km) . Consumption may be highe r
within the first 3,000 m iles (5,000 km).
1111>

24 0 Ch eck ing and filling
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance .
Fig . 204 Eng ine compartment: cover on the coolant
expa nsion tank
Before you check anything in the engine com­
partment,
a lwa ys re ad and h eed a ll WA RN­
INGS o .A in Working in the engine compart­
ment on page 231 .
Park your vehicle on a level surface.
• Switch
off the ignition .
• Read the engine coolant leve l from the cool­
ant expansion tank
o fig. 204, o page 233.
With a cold engine, the coolant level should
be betwee n the "min" and "max" markings.
When the engine is warm, the level may be slightly above the "max" marking .
The location of the coolant expans ion tank
can be seen in the engine compartment illus ­
tration
o page 233.
To obtain an accurate reading, the engine
must be switched
off.
The expansion tank in your vehicle is equipped
with an e lectric coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System
o page 16 wi ll
illuminate unti l you add coolant and the level
has been restored to normal. Even though
there is an electric coolant level sensor, we
still recommend you check the coolant level
from time to time.
Coolant l oss
Coolant loss may indicate a le ak in the cooling
system. In the event of coolant loss, the cool- ing system shou
ld be inspected immediately
by your authorized Audi dea ler . It is not
enough mere ly to add coo lant .
In a
sea le d system, losses can occur on ly if
the boiling point of the coo lant is exceeded as
a res ult of overheating.
A WARNING
-The cooling system is under pressure and
can get very hot. Red uce the risk of scald­
i ng from hot coolant by fo llow ing these
steps.
- Turn
off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping flu id and steam by covering the
cap with a large, th ick rag.
- Turn the cap slowly and very carefully in
a counter-clockwise d irect ion while ap­
plying light, downward pressure on the
top of the cap.
- To avo id being burned, do not sp ill anti­
freeze or coolant on the exhaust system
or hot engine parts. Under certa in cond i­
tions, the ethylene glycol in engine cool­
ant can catch fire.
0 Note
Do not add any type of radiator leak seal­
ant to your veh icle's engine coolant . Add­
i ng radiator repa ir fluid may adverse ly af­
fect the funct io n and performance of your
cooling system and could result in damage not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant .
Before you check anyth ing in the eng ine com­
partment,
alw ay s re ad and h eed all WARN­
IN GS o .A in Working in the engine compart­
ment on page 231.
• Tu rnoff the engi ne.
• Let the eng ine cool down.

248 Tire s and whee ls
Tires and wheels
Tires
General notes
Tires may be the least appreciated and most
abused parts of a motor vehicle .
Tires may be the least appreciated and most
abused parts of a motor vehicle . Tires are,
however, one of the most important parts of a
vehicle, particularly considering the compara­
tive ly small patch of rubber on each tire that
assures that all -important contact between
you, your vehicle and the road.
Maintaining the correct tire pressure, making
sure that your vehicle and its tires do not have
to carry more weight than they can safe ly han­
d le, avoiding damage from road hazards and
reg ularly inspecting t ires for damage includ­
ing cuts, slashes irregu la r wear and overall
condition are the most important things that
you can do to he lp avoid sudden tire failure in­
cluding tread separation and blowouts.
A vo idin g dama ge
I f you have to drive over a curb or similar ob­
stacle, drive very slow ly and as close as possi ­
ble at a right angle to the curb.
A lways keep chem icals including grease, oil,
gasoline and b rake fluid off the tires.
Inspect the tires regularly for damage (cuts,
cracks or bl isters, etc.). Remove any foreign
bod ies embedded in the treads.
St orin g tire s
Mark tires when you remove them to indicate
the direction of rotation . Th is ensures you to
be ab le to mount them correctly when you re­
install them.
When removed, the wheels or tires should be
stored in a cool, dry and preferably dark place .
Store tires in a vertical position if they are not mounted on rims, in a horizontal position if
they are mounted on rims. N
ew tir es
New t ires have to be broken in¢&,. .
The tread depth of new t ires may vary, accord­
ing to the type and make of t ire and the tread
pattern .
Hidden damag e
Damage to tires and r ims is often not readily
vis ible . If you notice unusual vibrat ion or the
vehicle pulls to one s ide, th is may ind icate
that one of the t ires has been damaged . T he
t ir es must be checked immed iate ly by an au­
tho rized Aud i dea le r or q ualified wor kshop.
Unidirecti onal t ires
A un idirectional tire can be identified by ar­
rows on the sidewall, that po int in the direc­
t ion the t ire is designed to rotate. You must
fol low the specified direction of rotation . This
is necessary so that these tires can develop
their optimum characteristics regarding grip, road noise, wear and hydrop laning resistance.
For more information ¢
page 2 77.
A WARNING
-New tires or tires that are old, worn or
damaged cannot provide maximum con­
trol and braking ability .
-
-New tires tend to be slippery and must
be broken in . To reduce the risk of losing
control, a collision and ser ious personal
injuries, drive w ith special ca re for the
fi rst 350 m iles (560 km).
- Driving with worn or damaged tires can lead to loss of control, sudden tire fail­
ure, including a blowou t and sudden de­
flation, c rashes and serious personal in­
juries . Have worn or damaged tires re­
p laced immediate ly.
- Tires age even if they are not being used
and can fai l sudden ly, especially at high
speeds. Tires that are more than 6 years
old can only be used in an emergency
and then w ith special care and at low
speed.

chains because the vehicle will be ex­
tremely low. If you do drive with snow
chains on while the vehicle is at this lev­
el, the snow chains might severe ly dam­
age the wheelhouse and other parts of
the veh icle .
@ Tips
Where snow cha ins are mandatory oncer­
tain roads, this normally also applies to
veh icles with All Wheel Drive.
Wheel bolts
Wheel bolts mu st always be tigh tened to the
correc t torque .
The design of whee l bolts is matched to the
factory in sta lled r ims. If different rims are fit ­
ted, the correct wheel bolts with the right
length and correctly shaped bolt heads must
be used . This ensures that wheels are f itted
secure ly and that the brake system f unctions
correctly .
In certain circumstances, you may not use
wheel bolts from a d iffe rent vehicle -even if it
i s the same mode l
¢page 294.
A WARNING
Imprope rly tig hte ned or maintained whee l
bolts can be come loose causin g loss of
contro l, a co llision and serious persona l in­
jury .
- Alw ays keep the w heel bolts and the
th reads in the wheel hubs clea n so the
wheel bolts can turn easily and be prop­
er ly tightened .
- Never grease or oil the wheel bo lts and
the threads in the w heel h ubs. They can
become loose while driving if greased or
o iled, even if tightened to the specif ied
torque.
- Only use wheel bolts that belong to the rim being installed.
- Never use different whee ls bolts on your
vehicle .
- Always maintain the co rrect tightening
torq ue for the wheel bo lts to reduce the
Tire s an d wheel s 265
risk of a wheel loss. If the tighte ning tor­
que of t he wheel bolts is too low, they
can loosen and come out when the vehi­
cle is mov ing . If the tighte ning torque is
too h igh, the wheel bol ts and threads
can be damaged and the whee l can be­
come loose.
(I) Note
The specified torque for the whee l bolts is
90 ft lb ( 120 Nm) with a tole ranc e of± 7,4
ft lb(± 10 Nm). Torq ue whee l bolts diago­
nally. Afte r cha nging a whee l, the torq ue
must be checked as soon as possible wi th a
torque w rench -prefe rably by an au thor­
i z ed Audi dealer or qualif ied workshop .
Low aspect ratio tires
Your Audi is facto ry-eq uipped with low aspect
ratio tires. These tires have been thoro ughly
tested and been se lected specifically for your
model for their superb performance , road fee l
and handling under a variety of driving cond i­
tions . Ask your authorized Audi dealer for
more details.
The low aspect ratio of these t ires is ind icated
by a numeral of
55 or less in the tire's size
designation . The numera l rep resents the ratio
of the t ire's sidewall height in relation to its
t read width ex pressed in perce ntage. Conven ­
tion al tires have a he igh t/w idth ratio of 60 or
more.
The performance of low-aspe ct-ratio tire s is
particularly sensitiv e to improper infla tion
pres sure. It is therefore important that l ow
a spect ratio tires are inflated to the specified
pre ssure and that the inflation pressure is
regularly checked and maintained. Tire pres·
sures should be checked at least once a
month and always before a long trip
¢ page 254 , Checking tire pressure .
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w it h potholes , curbs, gul lies ..,.
•
•

298 Index
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 80
Setup ..... ................ ..... .. 82
Automatic climate control system
synchron izing .......... .. .. .. .. .. .. 81
Automatic transmission . .. .. .. .. .. .. . 116
Automatic transmission (tiptronic) Emergency mode . . . . . . . . . . . . . . . . . . 120
Kick -down . . . . . . . . . . . . . . . . . . . . . . . . 119
Manual shifting .......... .. .. .. .. . 119
Parking lock emergency release . .. .. . 121
Selector lever positions . . . . . . . . . . . . . 116
Automatic wipers .................. .. S3
Auto Safety Hotline . . . . . . . . . . . . . . . . . 143
Average consumption ........... .. .. .. 25
Average speed . . . . . . . . . . . . . . . . . . . . . . . 25
Avoid damaging the vehicle ...... .. .. . 209
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Charging . .. ................ ... .. . 245
I mportant warnings .......... .. .. . 243
L ocat ion . . . . . . . . . . . . . . . . . . . . . . . . . 243
low ... .. .. .. . .......... .. .. .. .. . 204
Replacing the battery . . . . . . . . . . . . . . 246
State of charge ............ ... .... . 204
Winter operation .......... ... .... . 243
Working on the battery .... .. .. .. .. . 243
Before driving ........... .. .. .. .. .. . 135
Blended gasoline . ...... ... .... .. .. . 222
Blower (automatic climate control) . ... .. 81
Booster seats .............. ... .. ... 185
Brake fluid Changing the brake fluid ... .. .. .. .. . 242
Check ing the brake fluid level ... .. .. . 242
What is the correct brake fluid level? .. 242
What should I do if the brake fluid warn-
ing light comes on? ..... .. .. .. .. .. . 242
Brake system Anti-lock braking system ... .. .. .. .. . . 19
Brake assist system ......... .. .. ... 199
Brake booster . .. ...... .... ... .. .. . 203
Brake fluid .............. .... ..... 242
Brake fluid spec ificat ions for refill and re­
p la cement . . . . . . . . . . . . . . . . . . . . . . . 242
Brake light defective ....... ... .... . . 22
Brake pads ............... ... .... . 207
Electromechanica l parking brake .. .. . . 86 Fluid
reservoir ... ................ . 242
How does moisture or road salt affect the
brakes? .......................... 201
Warning/indicator lights ........ .... . 14
Worn brake pads symbol . . . . . . . . . . . . . 20
braking guard Messages ..... .. ............. .... 101
Braking guard . .. .. ... .......... .. .. . 94
Settings .. .... ............... .... 101
Break-in period .. .. ... .......... .. .. 207
Brake pads .. .. .. .......... ... .. .. 207
Tires ...... ... .. .. ........ ... .. .. 207
Bul bs .. .... .... ................... 282
C
California Proposition 65 Warning ..... 232
Battery specific . . . . . . . . . . . . . . . . . . . 24S
Capacities .. .. .. . .............. .. .. 290
Engine oil ..... .. ... .......... .. .. 234
Carbon parts Cleaning . . . . . . . . . . . . . . . . . . . . 218,219
Car carrier Transporting your vehicle ....... .... 287
Care ... .... .... ............... .... 216
Cargo area
refer to Luggage compartment . .. .. .. 141
Catalytic converter . ................. 208
Center armrest
Cockpit ........................... 61
Rear ............................. 68
Central locking .. .. ... ........... ... . 33
Emergency locking .. ........... .... . 37
Certification .. .. .. ............. .. .. 29S
Changing a wheel .. ............. .... 272
Chang ing engine oil ....... ...... .. .. 238
Checking Engine coolant level . ........... .. .. 240
Tire pressure .................... .. 254
Child restraints Danger of using child restraints in the
front seat . ................... .... 15S
Where can I get additional information
about child restraints and their use? .. 196
Child restraint system anchors ..... ... 190