display AUDI A4 2013 Service Manual

122 Park assist
In the MMI display, the direction of travel
of the vehicle rear is represented depend­ing on the steering wheel angle. The vehi­
cle front swings out more than the vehicle
rear. Maintain plenty of distance from an
obstacle so that your outside mirror or a
corner of your vehicle does not collide with
any obstacles -danger of accident!
@ Tips
The left or right orientation lines and sur­
faces will be displayed, depending on the turn signal being used.
Adjusting the display and warning tones
Applies to vehicles: with parking system (rear, with rear
view camera)
The display and warning tones are adjusted in
the radio or MM!*.
"' Select: I CARI function button > Parking sys·
tern.
Or
"' Select: ~I C~A~RI function button > Car sys­
tems*
control button > Driver assist > Park·
ing aid.
Display
- Off -when the parking system is switched
off, only audible signals are given.
- On -when the parking system is switched
on, the picture from the rear view camera is
displayed.
Warning tones
- Rear volume -
rear sensor volume
-Rear frequency -rear sensor frequency
-Music volume while parking -when the
parking system is switched on, the volume
of the active audio source is lowered.
The newly adjusted value is briefly heard from
the signal generator. The settings are auto­
matically stored and assigned to the remote
control key.
A WARNING
- Always make sure that the volume and
frequency of the warning tones is adjust­
ed so that you can easily hear the acous­
tic distance signal even if the radio is
playing, the air-conditioner blower is on
High or there is a high level of outside
noise.
- Check the settings whenever someone
else has driven the vehicle before you.
@ Tips
- The warning tones can also be adjusted
directly from the rear view camera im­
age. Simply press the Settings* control
button.
- Changed settings are activated when
parking assist is switched on again.
Error messages
Applies to vehicles: with parking system (rear, with rear
view camera)
-
If a warning tone is audible for about five sec­
onds when you turn on the ignition, there is a
malfunction in the system. Have the problem
corrected by your authorized Audi dealer.
Keep the sensors in the rear bumper clean and
free from ice so that the acoustic park assist system can function properly.

124 Homelink®
• To open the garage door, press the pro­
grammed button. The LED @will light up or
flash.
• To close the garage door, press the button
again.
@ Tips
To open the garage door, press the button, but do not press it for longer ten seconds
or the Homelink module will switch to
programming mode.
Programming the transmitter (version
A)
Appl ies to vehicles : wit h Home li nk
Fig. 137 Distance between the radia tor grille and the
hand transmitter
You can program the fixed code and rolling
code systems using the described procedure.
Programming the button
• Turn the ignition on .
• There are two ways to program the button:
Press the button¢ page
123, fig. 136 that
you would like to program. Use the instruc­
tions that appear in the MMI* to perform
the programming. Or
• Select:
I CARI function button > Car sys­
tems*
control button > Vehicle settings >
Garage door opener> Program garage door
opener .
• Select the button that you would like to
program.
• Follow the instructions in the
MMI*.
• If the garage door opening must also be
synchronized with the Homelink module,
refer to the owner's manual for the garage
door opener. Remote
control units for garage door openers
in Canada are set to stop transmitting radio
frequency signals after two seconds. This time
may not be sufficient for the Home link sys­
tem to learn the radio frequency signal. Per·
form all other steps as described above .
Erasing/Clearing the programmed button
settings
• To erase all of the programmed buttons at
the same time, select:
I CAR I function button
> Car Systems" control button > Vehicle set­
tings
> Garage door opener> Clear pro­
gram settings > Yes.
The programmed but­
tons can not be erased individually . Repro­
gram the buttons if necessary.
• Reprogram an individual button in the same
manner that you would for the one-time
programming .
Displaying the version/status/country
code
• Select: I CAR ! function button > Car sys·
terns*
control button > Vehicle settings >
Garage door opener> Version information .
(D Tips
-Programming using the MMI* is not
available for all vehicle versions.
- The required distance between the hand
transmitter and the Homelink module in
the radiator grille ¢fig.
137 depends on
the system that you are programming .
- Depending on the model of the garage
door opener, you may need to release the
button on the remote and press it again
when programming. When program­
ming a new device, keep the button
pressed for at least 15 seconds before
trying again with the transmitter in a dif­
ferent position.

148 Airbag sys tem
For this reason, and because t he bac k seat is
the safest place for children - when prop erly
restra ined according to their age and size - we
strongly recommend that children always sit in the back seat
Q page 166, Child Safety.
A WARNING
-
A child in a rearward-facing child safety
seat installed on the front passenger seat
w ill be seriously injured and can be k illed if
t he front a irbag inflates - even wit h an Ad­
v a nced Airb ag System.
- T he inflating a irbag will hit the child
safety seat or infant carrier with g reat
force and w ill smash the ch ild safety sea t
and child against the backrest, center
armrest, door or roof .
- Always install rear-facing child safety
seats on the rear seat .
-If you mus t inst all a rearwar d fa cing
child safety seat on the front passenger
seat because of exceptional circ umstan­
ces and the
PASSENGER AIR BAG OFF
light does not come on and stay on , im­
med iately install the rear-facing child
safety seat in a rear seating position and
have the a irbag system inspected by you r
au thorized Audi dealer .
- Forward-fac ing ch ild safety seats instal ­
led on the front passenger's seat may in­
terfer e wi th the deployment of the air­
bag and cause se rious personal injury to
the ch ild.
A WARNING
If, in exceptional c ircumstances, you mus t
install a forwa rd-facing child restra int on
the front passenger's seat:
- Always m ake su re the forw ard-fa cing
sea t has been des igned and certified by
its manufact urer for use on a front seat
with a passenger front and side airbag.
- Never put the forward -facing child re ­
st raint up aga inst or very near the inst ru­
ment pane l.
- Always move the passenger seat into its
rearmost position in the seat's fore and aft ad
justment range, as fa r away from
the airbag as possible before installing
the forward-fac ing ch ild restra int. The
backrest must be ad justed to an upright
position .
- Make sure that the
PASSENGER AIR BAG
OFF
li ght comes on and stays on all the
time wheneve r the ignit ion is switched
on.
A WARNING
To reduce the risk of serious inju ry, ma ke
sure that the
PASSENGER AIR BAG OFF
lig ht w ill be displayed whenever a child re­
straint is insta lled on the front passenger
seat and the ignition is switched on .
- If the
PASSENGER AIR BAG OFF light
does not stay on, per form the checks de ­
scribed ¢
page 156, Monitoring the Ad­
vanced Airbag System.
- Take the chi ld restraint off the front pas­
senger seat and install it properly at one
of the rear seat positions if the
PASSEN ­
GER AIR BAG OFF light does not stay on.
-Have the airbag system inspected by
your author ized Audi dealer immed iate­
ly.
- Always carefully follow instr uctions from
child restraint manufacture rs when in­
stalling ch ild restra ints.
A WARNING
-If, in except iona l circumstances, you must
i nstall a forward or rearwa rd -facing child
r estra int on t he front passenger's seat :
- Improper installation of ch ild restra ints
can reduce their effectiveness o r even
p revent them from providing any protec­
tion.
- An improperly installed ch il d restra int
can inter fere with the airbag as it de­
p loys and seriously injure o r even kill the
child -even with an Advance d Airbag
System.
- Always caref ully follow the m anu factur ­
er 's ins truc tio ns p rov ided with the ch ild
safety sea t or carrier .

158 Airbag system
in the instrument cluster display. This is to in­
form the driver of the current front passenger
airbag status.
Important safety instructions on
monitoring the Advanced Airbag System
A WARNING
An airbag system that is not functioning properly cannot provide supplemental pro­
tection in a frontal crash.
- If the airbag indicator light¢
page 20
comes when the vehicle is being used,
have the system inspected immediately
by your authori zed Audi dealer. It is pos­
sible that the airbag will inflate when it
is not supposed to, or will not inflate
when it should .
A WARNING
If the front airbag inflates, a child without
a child restraint, in a rearward-facing child
safety seat or in a forward-facing child re­
straint that has not been properly installed
will be seriously injured and can be killed.
- Even though your vehicle is equipped
with an Advanced Airbag System, make certain that all children, especially 12
years and younger, always ride on the back seat properly restrained for their
age and size.
- Always install forward or rear-facing
child safety seats on the rear seat -even
with an Advanced Airbag System.
- If you must install a rearward-facing
child safety seat on the front passenger
seat because of exceptional circumstan­
ces and the
PASSENGER AIR BAG OFF
light does not appear and stay on, imme­
diately install the rear-facing child safety
seat in a rear seating position and have
the airbag system inspected by your au­
thorized Audi dealer.
- A tight tether or other strap on a rear­
ward-facing child restraint attached to
the front passenger seat can put too
much pressure on the weight-sensing
-
mat in the seat and register more weight
than is actually on the seat. The heavier
weight registered can make the system
work as though an adult were on the seat and deploy the Advanced Airbag when it
must be suppressed causing serious or
even fatal injury to the child.
- If, in exceptional circumstances, you
must install a forward-facing child re­
straint on the front passenger seat, al­
ways move the seat into its rearmost po­
sition in the seat's fore and aft adjust­
ment range, as far away from the airbag
as possible. The backrest must be adjust­
ed to an upright position. Make sure that
the
PASSENGER AIR BAG OFF light
comes on and stays on all the time when­
ever the ignition is switched on .
A WARNING
-
-
-If the PASSENGER AIR BAG OFF light
does not go out when an adult is sitting
on the front passenger seat after taking
the steps described above, make sure the
adult is properly seated and restrained at
one of the rear seating positions.
- Have the airbag system inspected by
your authorized Audi dealer before trans­
porting anyone on the front passenger
seat.
(D Tips
If the weight-sensing mat in the front pas­
senger seat detects an empty seat, the
front airbag on the passenger side will be
turned off, and
PASSENGER AIR BAG OFF
will stay on.
Repair , care and disposal of the airbags
Par ts o f the airb ag system are ins talled at
many different places on your Audi. Installing,
removing, servicing or repairing a part in an
area of the vehicle can damage a part of an
airbag system and prevent that system from
working properly in a collision. .,..

-Always acce lerate with specia l care on
even, smooth surfaces s uch as those that
are wet or covered with ice and snow.
The drive wheels can spin even with
these assistance systems that cannot al­
ways help to reduce the risk of loss of ve­ hicle control.
(0 Tips
- ABS and ASR on ly work correctly when
all four wheels are equ ipped w ith ident i­
ca l tires. Different tire s izes can lead to a
reduct ion i n eng ine power.
- You may hear noises when the systems
described are wo rking .
- If the indicator light D] or m!S (USA
models) ;tiJ (Canada models) appears,
the re may be a malfunct ion
c:> page 19,
~ page 19.
Sedan : Switching on/off
ESC turns on automatically when you start
the engine .
Fig . 174 Vers io n A: low er c en te r co nsol e, 1', O FF bu t­
to n
Fig. 175 Ve rsio n B: upper ce nte r console,~ OFF bu t­
to n
Intelligen t technolog y 187
Turning off ASR
In some sit uatio ns, it may be useful to switch
ASR
off to a llow the wheels to spin . For exam­
ple:
- Rocking the vehicle to free it when i t is st uck
- Dr iving in deep snow or on loose ground
- Dr iving with snow chains
Qu ick ly press the
I~ O FF I button c:> fig. 174 or
c:>
fig . 175. The fil indica tor light turn s on and
t he me ssage
T rac tion control (A SR ): Off.
War ning! R estrict ed stability
appears in the
display .
It i s only possible to turn
off the ASR up to
30 mph (SO km/h) for vehicles wi th front
wheel drive . At about 45 mph (70 km/h) it au ­
tomat ically turns on again .
It is possible to
turn
off the ASR at any speed fo r vehicles with
all wheel drive .
Turning off ESC
Press and hold the I;; OFFI button for three
seconds . The
fl ESC indicator light turns on
and the message
Stabil ization cont rol (ESC ):
o ff . Warni ng ! Re str icted stab ilit y
appea rs in
the d isplay. ASR is also sw itched
off when ESC
i s sw itched off.
Switching on
Press the j ;; O FFI button again . The fi indica­
tor light t urns on and the message
St abi liz a­
t ion control (ESC ): On
appears in the disp lay.
_&. WARNING
- Drive whee ls can sp in and you can lose
contro l of the vehicle more eas ily when
ASR and ESC are switched off, especia lly
when the road is s lippery .
- Switch ASR/ESC
off only when yo ur driv ­
ing skills, traffic and weather conditions
permit.
@ Tips
You cannot sw itch ASR and ESC off when
adaptive cruise control* is working .
-

188 Intelligent technology
allroad: Switching on /off
ESC turns on automatically when you start
the engine .
Fig. 176 Version A: lower ce nter console,~ OFF but­
to n
...... [ I I n-I _,,. .,., -------' -"~ __..,
Fig. 177 Versio n B: upper ce nter conso le,~ OFF but­
to n
ESC Offroad mode
In order to maintain maximum traction and
optima l brak ing when driving offroad , the
conditions for the ESC to work are reduced to
such a degree, tha t the vehicle whee ls co uld
start to spin . The stabilizing effects start to
work later wh ich results in limited vehicle sta­
b ili ty.
The ESC Offroad mode should on ly be used in
the following situations:
- Rocking the vehicle to free it when it is stuck
- Driving in deep snow or on loose ground
- Driving on rough terra in when much of the
car's weight is lifted off the wheels (axle ar­
t icu lation)
- Driving with snow cha ins
- Driving downhill while braking on loose
ground
F or your safety, switch off the ESC Offroad
mode in advance.
Switching on th e ES C Offroad mode
Press the In OF FI button ¢ fig. 176 or
¢ fig. 177 . The I indicator light turns on and
the message
St abilization cont ro l ( ES C): Off­
ro ad. Wa rning! Rest ricted stability
appears
in the disp lay.
Swit ching off th e ESC Offroad mode
Press the !.$ O FF I button again to sw itch the
ESC back on . The
IJ indicator light turns off
and the message
Stabil ization contro l (ESC ):
On
appears in the display.
_& WARNING
- You shou ld only turn on the ESC Offroad
mode when driving offroad or with snow
chains.
- Drive whee ls can sp in and you can lose
control of the vehicle more easi ly when
ASR and ESC are in Offroad mode, espe ­
cially whe n the road is slippery.
- Switch to Offroad mode only whe n your
driving skills, traff ic and weather condi­
tions permit .
(D Tips
You cannot sw itch Offroad mode on when
adaptive cruise control* is working.
Braking
What affects braking efficiency?
New brake pad s
During the first 250 mi les (400 km), new
brake pads do not possess the ir full brak ing
effect, they have to be "broken in" first¢ .&,.
You can compensate for this slightly reduced
braking power by p ushing harde r on the brake
pedal. Avoid heavy brak ing loads dur ing the
break-in pe riod.
Oper ating cond ition s and driving habit s
The brakes on today's automobiles are still
subject to wear, depending largely on operat ­
ing co nd it ions and driving hab its
¢ .&, . On
vehicles that are either driven most ly in stop-
and-go city traff ic or are dr iven hard, the
lilJ,,

190 Intelligent technology
to brake. This may cause the brakes to
overheat, premature wear and increased
stopp ing distance.
- Under certain climatic and operating
condit ions such as passing through wa­
ter, driving in heavy ra in or after wash ing
the vehicle, the effect iveness of the
brakes can be reduced . In winter, ice can
accumulate on the brake pads, linings,
discs and drums. Carefully apply brakes
f or a test . B rakes will dry a nd ice coat­
ings will be cleaned off after a few ca re ­
ful brake applications.
- Driv ing for an extended pe riod of time on
salt -covered roads without using you r
brakes can also affect braking efficiency.
Clean off accumulated salt coating from
brake discs and pads w ith a few careful
brake applicat ions.
- If you damage the front spoiler, or if you
install a different spoiler, be sure the air
flow to the front brakes is not obstruct­
ed . O therwise the brake system could
overheat reducing the effectiveness of
the ent ire brake system.
- Failure of one brake c ircuit will impair
the braking capability resulting in an in­ creased stopp ing distance. Avoid driv ing
the vehicle and have it towed to t he near­
est author ized Audi dealer or qualif ied
workshop.
- Never let the vehicle roll to a stop w ith
the engine shut off.
- If the brake booster is not working, for
example when towing your ve hicle, or
because the b rake booste r has somehow
been damaged, the brake pedal must be
pressed considerab ly harder to make up
for the lack of booster assistance.
Electro-mechanical
power assist, dynamic
steering
The electro-mechanical power assist helps
the driver when steering.
Power steer ing adapts electronically based on
the veh icle speed.
Indicator lights and messages
• Ste ering d efe ct ive ! Do not d rive vehicle!
If this indicator light turns on and stays on
a nd this message appears, the power steering
may have failed .
Do
not continue driving. See your authorized
Audi dealer or other qualified repair facility
for assistance.
'Tij D ynamic steer ing: Sy stem f au lt! You c an
cont inue d riving
If the indicator l ight turns on and the mes­
sage appears, the stee ring may be more diffi­
c ul t to move o r more sensitive than usua l. The
steering wheel may a lso be at an ang le when
driv ing straight.
Drive slowly to your authorized Audi dea ler or
qualified workshop to have the ma lf u nction
corrected.
'Tij Dynamic stee rin g: initializing
If this driver message appears and the indica­
tor light is flashing on the instrument panel, dynamic steer ing* is being re initia lized . On ce
you start the engine after t his is finished, the
steering wheel will be easy to move . Re-initi­
alizat ion might be necessary if the steering
whee l was moved hard to the left and right
whi le the vehicle was not moving. The display
goes out as soon as initiali zation is complete.
A WARNING
-Have the dynamic steering* system mal­
function repa ired as soon as possible by an
authorized Audi dealer or any qualified
workshop - r is k of accident!
-

192 Intelligent technology
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 conventional energy system
is not driven for a long period of time, the bat­
tery is d ischarged by idling current consumers
(e.g. immobilizer). In ce rtain circumstances it
can result i n there bei ng insuff ic ient ene rgy
avai lab le to start the engine .
Intell igent energy management in your vehi­
cle hand les the d ist ribu tion of elect rical ener­
gy. Starting ab ility is mar ked ly imp roved and
the life of the battery is extended .
Basically , energy management consists of
batt ery diagno sis , idling curr ent manag e­
ment
a nd dynami c energy man agement .
Battery diagnosis
Battery d iagnosis continuously determ ines
the state of the battery . Sensors determ ine
battery vo ltage, battery current and battery
temperature . This dete rm ines the current
sta te of charge and the power of the ba ttery.
Idling current management
Idling current management reduces energy
consumption wh ile the vehicle is stand ing .
W ith the ignition switched off, it cont ro ls the
ene rgy s upply to the va rio us e lectrica l compo­
nents . Data from battery diagnosis is consid­
e red.
Depending on the battery's state of charge,
i nd ividua l consumers are grad ually t urned off
to p revent ex cess ive d isc harge of the ba ttery
and thus mainta in start ing capability.
Dynamic energy management
While the vehicle is be ing dr iven , dynamic en­
e rgy management dist ributes t he energy gen­
e rated accordi ng to the needs of the individu­
a l componen ts.
It reg ulates consump tion, so
that more electrical ene rgy is not being used than
is being generated and ensures an opti ­
mal state of charge for the battery.
(D Tips
- But even energy man ageme nt canno t
negate the limi ts of physics . Conside r
that the powe r and life of a battery are
limited .
- If start ing ability is threatened, the indi ­
cator light (•) appears ~
page 17.
What you should know
The highest priority is given to maintaining
starting capability .
The b attery is severe ly taxed in short -d istance
driv ing, in ci ty traff ic and during t he cold time
of yea r. Ab undant electrical energy is re­
quired, but on ly a little is generated . It is also
critical if the engine is not r unning and electri­
ca l components are turned on . In this in­
stance ene rgy is be ing consumed but none is
being generated .
It is in precisely these s ituations that you will
notice energy management active ly reg ulat­
ing the d istribution of energy.
Vehicle stand s for an e xtended period
If you do not drive your vehicle over a period
of several days or weeks, e lectrica l compo ­
nents are gradually cut back or sw itched off.
This reduces energy consumption and ma in­
ta ins start ing capability over a longer pe riod .
Some of the convenience functions may not
operate, such as the interior lights or the
power seat adjustme nt. The convenience
f unc tions wi ll be available again when yo u
swi tch on the igni tion and sta rt the eng ine .
With the engine turned off
If you listen to the radio, for examp le, w it h
the engine t urned off or use other MMI func­
t ions, t he battery is be ing discharged.
If starting capability is jeopardized due to en ­
ergy consump tion, the following warning ap-
pears in the MM I display: .,,.

-Always read and heed all WARNINGS and
other information
¢page 202.
Exhaust tail pipes
Road salt and other corros ive materia ls will
damage the mater ial in the exhaust tail pipes
if they are not cleaned regularly . Do not clean
the ta il p ipes with wheel cleaner, paint pol ish,
chrome po lish or other abrasive cleaners.
C lea n the ta il p ipes wi th car ca re p rod ucts
that are s uitabl e for s tain less stee l.
Your authorized Audi dealer can provide clean­ i n g p roducts t hat have been tested and ap­
p roved fo r you r vehi cle.
Care of interior
Infotainment components
The Radio/MMI* display may be cleaned with
a soft cloth and commerc ially-avai lab le "LCD
cleane r" . The cloth should be coated l ightly
wh en the clean ing solution when cleani ng the
d isp lay.
The
MMI* contro ls must be cleaned first with
a br ush so that dirt does not e nte r the un it o r
ente r betwee n th e bu ttons and the hous ing.
Then w ip ing t he con tro ls w ith a cloth damp­
e ned wi th dish de tergent and water is recom ­
mended .
(D Note
- To avoid sc ratch ing the disp lay, yo u
s ho ul d neve r clea n it dry.
- To prevent damage, ma ke s ure fl uids do
n ot en ter the co ntrols.
Aluminum trim
Use only neutral-pH products to remove spots
and deposits from alum inum surfaces.
C hrome 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 202.
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 rubbed i nto them. After­
w ards, remove the soa p with wa te r (damp
sponge).
Alcohol can be used to treat stains from grease, o il, lipstic k or a ballpoin t pen. Melted .,.
•
•

temperatures stay below freezing point for l ong periods.
Detergent add itives in the o il w il l make fresh
oil look dark after the eng ine has been run ­
ning fo r a short time . This is norma l and is not
a reason to change the oi l more often than
recommended.
D am ag e or m alfun ction s due to lack of
ma intenanc e
It is essential that you change your oil at the
r ecommended inte rva ls using only engine o il
t hat complies wi th A udi oi l standard
VW 502 00 . Your Limited New Vehicle War ­
ranty does not cover damage or malfunctions
d ue to fa ilure to fo llow recommended mainte­
nance and use requ irements as set forth in
the Audi Owner's Manua l and Warranty
&
Maintenance book let . Your dea ler will have to
deny warranty coverage u nless you present to
the dea ler p roof in the fo rm of Serv ice or Re­
pa ir Orde rs that all s chedu led maintenance
wa s pe rformed in a t imely manner .
Engine oil consumption
The engine in your vehicle dep ends on an ade­
quate amount of oil to lubricate and cool all
of its moving parts.
In o rder to provide effective lubrication and
cool ing of i nternal engine components, a ll in­
ternal comb ustion eng ines consume a cert ain
amo unt of o il. Oil cons umption varies from
engine to engine and may change significantly
over the life of the engine. Typ ica lly, engines
with a specified break-in per iod (see
¢
page 194) consume more oil during the
break-in per iod than they consume after oil
consumption has stabilized .
Under norma l conditions, the rate of oil con ­
sumpt ion depends on the quality and viscosity
of the oil, the RPM (revo lutions per m inute) at
which the engine is operated, the amb ient
temperature and road condit ions. Furthe r fac­
tors ar e the amount of o il d ilution from wate r
condensation or fuel residue and the ox ida­
tion level of the oi l. As any engine is s ubje ct to
Checkin g and fillin g 223
wear as m ileage builds up, the oil consump ­
tion may increase over time until replacement
of worn components may become necessary.
Wi th a ll these variab les coming into p lay, no
standard rate of oil consumpt ion can be es ­
tablished or specified. There is no alternative
to regular and frequent check ing of the o il lev ­
el, see
Note .
If the yellow engine oil leve l warning symbo l
1\1 in the instrument cluster lights up , you
sho uld check the oil leve l as soon as possib le
¢
page 224. Top off the oil at your earliest
convenience ¢
page 224.
A WARNING
Before you check anythi ng i n the engi ne
compartment, always read a nd heed all
WARNINGS¢ .&.
in Working in th e engine
c ompartment on page 219.
(D Note
D riving w ith an insufficient o il level is like­
ly to cause sever e damage to the engine .
(D Tips
- The oil pressure warning display. is
not an indicator of the oil le vel. Do not
rely on it . Instead, check the oil level in
your engine at regu lar intervals, pref­
erably ea ch time you refuel, and always
before going on a long trip .
-If you have the impression yo ur engi ne
c ons umes ex ce ss ive amoun ts of o il, we
recommend that you consul t an a uthor­
ized Aud i dea ler to have the cause of
your concern properly d iagnosed. Keep in
mind that the accurate measu rement of
oil consumption requ ires great care and
may take some t ime. An authorized Aud i
dealer has instructions about how to
measu re oil consumption accurately.
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