engine oil AUDI Q7 2015 Owner´s Manual

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Catalytic converter
Applies to vehicles: with gasoline engine
It is very important that your emission con­
trol system (catalytic converter) is function­
ing properly to ensure that your vehicle is run­
ning in an environmentally sound manner .
... Always use lead-free gasoline c::> page 248,
Gasoline .
... Never run the tank down all the way to emp­
ty .
... Never put too much motor oil in your engine
c::> page 261, Adding engine oil 't=r..
.,. Never try to push-or tow-start your veh icle.
The catalytic converter is an eff icient "clean­
up" device built into the exhaust system of
the vehicle. The catalytic converter burns
many of the pollutants in the exhaust gas be­
fore they are released into the atmosphere.
The exclus ive use of unleaded fuel is cr it ically
i mportant for the life of the cata lytic convert­
e r and proper functioning of the engine.
& WARNING ,~
T he temperature of the exhaust system is
high, both when driving and after stopping
the engine .
- Never touch the exha ust tail pipes once
they have become hot. This could result
in burns.
- Do not park or operate the vehicle in
areas where the hot exhaust system may
come in contact with dry grass, brush,
fuel spill or other material which can
cause a fire.
- Do not apply additional undercoating or
rustproofing on or near the exhaust
manifold, exhaust p ipes, catalytic con­
verter or heat shields . During driving, the
substance used for undercoating cou ld
overheat and cause a fire.
(D Note
- Be aware that just one tank f illing with
leaded fuel will already seriously de-
grade the performance of the catalytic
conve rter.
Dri vin g and en vironm ent 231
-Do not exceed the correct engine oil level
c::> page 261.
- Do not drive until the fue l tank becomes
completely empty. The engine cou ld mis­
fire. Unburned fuel could also get into
the exhaust system and this cou ld cause
the catalytic converter to overheat.
- Do not turn off the ignition while the ve­
hicle is mov ing.
- Do not continue to operate your veh icle
under these conditions, as otherwise fuel
can reach the catalyt ic converter. Th is
cou ld result in overheating of the con­
verter, requir ing its replacement.
- To assure efficient operation of the Emis­
sion Control System:
- Have you r vehicle main tained properly
and in accordance w ith the se rv ice rec­
ommendations in your Warranty & Maintenance book let.
- Lack of proper maintenance as we ll as
improper use of t he vehicle will impair
the function of the emission contro l
system and could lead to damage.
@) For the sa ke of the env ironment
Even when the Emission Control System is
operating properly, the exhaust gas can have a sulfur-like exhaust gas smell under
some operat ing states. This depends on
the sulfur content of the fuel being used .
Using a different brand of fuel may help,
or filling the tank with lead-free s uper
g rade gasoline.
Diesel particulate filter
App lies to vehicles: wit h diese l eng ine
The diesel part iculate filter filters nearly all of
the soot pa rticles out of the exhaust . T he fil­
te r clea ns itself automat ica lly under no rma l
driv ing cond itions. If the filter cannot clean it ­
self (for example, because you are on ly driving
short distances), the fi lter becomes clogged
with soot and the
II symbol for the diese l
particulate filter i lluminates
c::> page 36. ..,_
•
•

232 Driving and en vironm ent
,8. WARNING
-Do not park your vehicle over flammable
materials such as grass or leaves because
the high temperature of the diesel par­
t icu late filter could start a fire .
- Do not apply an underbody protectant in the exhaust system area or a fire could start.
Avoid damaging the vehicle
When you are driving on poor roads, or over
curbs, steep ramps, etc., make certain that
low-lying parts such as spoilers and exhaust
system parts do not bottom out and get dam­
aged.
This is especia lly true for vehicles with low­
slung chassis (sports chassis)* and fully load­
ed vehicles.
Shutting down vehicle
If you would like your vehicle to remain inop­
erative for a longer period of time, contact an
Audi or other specialized dealer . They can ad­
vise you on necessary precautions e.g . corro­
sion prevention, maintenance and storage. Pay attention to additional information con ­
cerning the battery. Refer to
c::> page 266 .
Operate your vehicle
economically and
minimize pollution
General
Your personal style of driving will determine
the economy of your vehicle, as well as ex­
haust and noise levels .
Fuel economy, environmental impact, and
wear on your engine, brakes and tires largely
depend on three factors:
- your personal driving style
- operating conditions
- technical limitations
If you anticipate what you need to do next and
drive economically, you can easily cut your
fuel consumption by 10-15 percent . This sec­
tion will give you some tips on how you can help the environment and your pocketbook.
(D Tips
The consumption estimates as published by ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the road, which will vary depending upon vehi­
cle load and speed, road and weather con­
dit ions, trip length, etc.
· Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they ore ac­
celerating.
., Avo id unnecessary accelerating and brak ing .
Vehicles use the most fuel when they are ac ­
celerating . If you anticipate what is going to
happen next, you will need to brake less and,
thus, acce lerate less. Let the vehicle coast
whenever possible -for examp le when you see
that the next traffic light is red.
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
., Try and keep well below your car's maximum
speed.
Accelerating gently reduces fuel consump­
tion, engine wear, and does not disturb the environment.
Fuel consumption, exhaust emissions and en­
gine noise increase disproportionately at high
speeds. If you drive at approximately three
quarters of top speed, fuel consumption w ill
be reduced by one half. Never drive faster
than the posted speed limit and weather con­
ditions permit.

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Reducing unnecessary idling
Even when your car is just idling it burns up
fuel.
11-Shut the engine off when you are not driving
the vehicle.
11-Do not warm up the vehicle by letting the
engine run at idle .
It makes sense to shut
off the engine in traffic
jams, when waiting for trains to pass at rail­
road cross ings, or at traffic lights that have
long waits on red. Turning the engine
off for
just 30-40 seconds saves more fuel than is
burned starting the engine again.
It takes a long time for the engine to warm up
fully when it is running at idle. However, wear
and noxious emissions are especially high
when the engine is warming up. So you should
drive away as soon as you start the engine and
avoid running at high rpms while the engine is
still warming up .
(D Note
Do not leave engine idling unattended af­
ter starting. If warning lights should come
on to indicate improper operation, they
wou ld go unheeded. Extended idling also
produces heat, which cou ld result in over­
heating or other damage to the vehicle or
other property .
Regular maintenance
A badly tuned engine unnecessarily wastes a lot of fuel .
11-Have your vehicle serviced at regular inter-
vals.
By having your vehicle regularly serviced by an
authorized Audi dealer helps to ensure that it
runs properly and economically. The condition
of your vehicle not only affects its safety and
ab ility to hold its value, it also affects fuel
consumption.
Check your oil each time you fill your tank.
Driving and environment 233
The amount of oil used is re lated to engine
load and speed.
It is normal for the oil consumption of a new
engine to reach its lowest value after a certain
mileage has been driven.
You must drive your vehicle about 3,000 miles
(S,000 kilometers) before you can properly
assess oil consumpt ion.
This also app lies to fue l consumption and en­
gine output.
(D Note
- Have your veh icle ma inta ined properly
and in accordance with the service rec­
ommendations in your Warranty
& Main­
t enance booklet. Lack of prop er mainte­
nance as well as improper use of the ve­
hicle will impair the function of the
emission cont ro l system and could lead
to damage.
- Do not alter or remove any component of
the Emission Control System unless ap­
proved by the manufacturer.
- Do not alter or remove any device, such
as heat shields, switches, ignition wires,
valves, which are designed to protect
your vehicle's Emission Control System and other important vehicle compo­
nents.
Fewer short trips
Fuel consumption will always be relatively
high on short trips .
11-Try to avoid driving short distances w ith a
cold engine.
T he engine and cata lytic converter have to
reach their optimal operating temperature to
reduce fuel consumpt ion and noxious emis­
s ions effectively .
Just after starting, a co ld engine in a mid-size
car only achieves a fuel economy of 6-8 mi les
per gallon (30-40 l/l00km). After about a
half a mile, fuel economy climbs to 12 mpg
(20 l/100 km). After about
2.5 miles (4 km), liJI,
•
•

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-Blend must contain not more than 1S%
MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform
espec ially we ll for winter or summer driving.
During seasonal change-over, we suggest that
you fill up at busy gas stat ions where the sea­
sonal adjustment is more likely to be made in
time .
(D Note
-Methanol fuels which do not meet these
requirements may cause corrosion and
damage to plastic and rubber compo­
nents in the fuel system.
- Do not use fue ls that fail to meet the
specified criter ia in this chapter.
- If you are unable to determine whether
or not a particular fue l blend meets the
specifications, ask your service station or
its fuel supp lier.
- Do not use fuel for which the contents
cannot be identified.
- Fuel system damage and performance
problems resulting from the use of fuels
different from those specified are not
the responsibility of Audi and are not
covered under the New Vehicle or the Emission Control System Warranties.
- If you experience a loss of fuel economy
or driveability and performance prob­ l ems due to the use of one of these fuel
blends, we recommend that you switch
to unblended fuel.
Gasoline additives
Applies to vehicles : wit h gasoli ne e ng in e
A majo r concern among many auto manufac­
ture rs is carbon deposit build-up caused by
the type of gasoline you use.
Although gasoline grades differ from one manufacturer to another , they have certain
things in common. All gasoline g rades contain
substances that can cause deposits to collect
on vital engine parts, such as fuel injectors
and intake valves. Although most gasoline
Fuel supply and filling your fuel tank 249
brands include additives to keep engine and
fuel systems clean, they are not equally effec­
tive .
Audi recommends using TOP TIER Detergent
Gasoline . For more information on TOP TIER
Detergent Gasoline, please go to the official
webs ite (www.toptiergas.com).
After an extended per iod of using inadeq uate
fuels, carbon deposit build-ups can rob your
engine of peak performance.
CD Note
Damage or malf unct ion due to poor fuel
quality is not covered by the Audi New Ve­
hicle Limited Warranty.
Diesel fuel
Applies to veh icles: w ith diesel engine
Always use ULSD (Ultra Low Sulfur Diesel)
No. 2. The ULSD No. 2 meets the ASTM D97S.
Diesel fuel with concentrations of biodiesel
highe r than S % such as Bll, B2O or BlOO are
strictly prohib ited .
Se rv ice stat ion fuel pumps are labeled with
the cor rect fuel informat ion for easy recogn i­
tion by the user. If the diesel fuel pump is not
labeled ask the station operator what fuel is
being dispensed before filling up your vehicle.
ULSD No. 2 may not be available outside the
USA and Canada. Be sure to check before trav­
eling to other countries .
ULSD No. 2 can become thicker in very cold
temperatu res, and this can impair the en­
gine's start ing and running. Depending on the
season, gas stations provide ULSD No. 2 that
flows better in cold temperatures so that you
can continue operating your vehicle as usua l.
CD Note
-Yo ur vehicle's diesel engine was de­
signed soley for use with ULSD No. 2.
Therefore, never use gasoline, heating oil, other fuels or flow improvers. These
conta in substances that will severely
damage the fuel system and the engine . .,.
•
•

252 Fuel supply and filling your fuel tank
addition, the expans ion space in the fuel
tank will be filled -causing the fuel to
overflow when it becomes warm and pol­
lute the environment.
@ Tips
- Running your engine while refuelling
may cause vapors to escape or even
cause fue l to spill out of the tank. This
would then shut off the fuel nozzle be­
fore the tank is full.
- Do not refuel your vehicle w ith the igni­
tion turned on. The fuel gauge may oth­
erwise not ind icate the correct fuel level
after refuell ing.
- Diesel veh icles* are equipped with a die­
sel misfueling protector. It allows the
vehicle to be fueled only w ith a diesel
fuel pump nozzle. A worn or damaged
nozzle or a nozzle that is too small may
not be able to open the diesel misfueling
protector. If this is the case, try turning
the nozz le before inserting it in the fue l
filler neck, use a different fuel pump or
see your authorized Audi dealer or au­
thorized repair facility for assistance.
Unlocking the fuel filler flap by hand
You con open the fuel filler flop by hand if the
power locking system should foil.
• e
Fig. 235 Luggage compartment: Prying cover open
Fig. 236 Lu ggage compa rtment: Emergency opening
of fue l fille r flap
.. Remove the right-side trim panel with the
aid of a screwdriver
¢ fig . 235.
.. Pull the loop down in the direction of the ar­
row to unlock the fuel filler flap¢
fig. 236.
Selective catalytic
reduction
General information
Applies to vehicles: with diesel engine
On vehicles with selective catalytic reduction,
an urea solution (AdBlue) is injected into the
exhaust system before a nitrogen oxide cata­
lytic converter to reduce nitrogen emissions.
The Ad Blue is stored in a separate tank in the
vehicle. The Ad Blue usage accounts for ap­ proximately 0.5% to 1.2% of the diesel fuel
that is used .
You must refill the Ad Blue or have it ref illed
by your authorized Audi dealer or qualified
workshop as soon as the Ad Blue refill mes­
sage appears in the instrument cluster
¢page 254.
&_ WARNING ~
Failure to heed AdBlue refill information in
the instrument cluster can prevent the ve­
hicle from being started and dr iven.
If the
vehicle cannot be driven and an emergency
arises, personal injury can occur.
- Always have the AdBlue tank refilled we ll
before the tank runs dry. .,.

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-Apply the parking brake.
- Move selector lever to P (Park).
- Always let the engine cool down. Hot
components will burn skin on contact.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment. Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood.
- Keep children away from the engine com­
partment .
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxili­
ary electric fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
ant system is pressurized and hot cool­
ant could spray out .
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir .
- Do not remove the engine cover under
any circumstances . This increases the
risk of burns.
- If work on the fuel system or the electri­
cal system is necessary:
- 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 personal 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 repair
with the engine running:
Checking and filling 257
- First, fully apply the parking brake,
move selector lever to P (Park).
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­
ing hot parts . Tie back hair before
starting, and do not wear clothing that
will hang or droop into the engine.
- Minimize exposure to emission and
chemical hazards~&. .
A WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the State of California to cause cancer and
birth defects or other reproductive harm.
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
Q) Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam­
age to vehicle systems will 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 vehicle flu­ ids, have your vehicle inspected by an au­
thorized Audi dealer. •
•

258 Checking and filling Engine compartment
These are the most important items that you can check .
Fig. 242 Typical layo ut for containers, engine oil di pstick and engin e oil fille r cap
(D W indshield/head light washer
t . (
;R ) con ainer ,.... .............. .
@ Coolant expansion tank (-L) .. .
@ Engin e oi l filler cap ('t".:r.) . .. .. .
©
®
®
(j)
Eng ine oil dipstick .......... .
Brake fluid reservoir
((0)) ..... .
Power steering reservoir ... .. .
Jump start connector( +) under 270
263
261
260
265
226
a cover,( ·) with hex head screw 268,317
The position of the engine o il fi lling hole and
the engine oil dipstick
r=;, fig. 242 (position ®
and @) can vary according to the type of en­
gine .
_&. WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS ¢.&.
in Working in the engine
c ompartment on page 256.
-
Engine oil
Engine oil specifications
The engine oil used must conform to exact
specifications .
The service interva l disp lay in t he instrument
cluster of your vehicle will inform you when it
is time for an oil change . We recommend that
you have your oil changed by an authorized Audi Service Advisor.
If you have to top
off the oil between oil
changes, use the Audi o il quality standard
spec ified in the table.
Audi oil quality standard
Gasoline
VW 502 00 or
engine vw 504 00
Diesel vw 507 00
engine

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Using the proper engine oil is important for
the functionality and service life of the en­
g ine. Your engine was factory -filled with a
h igh-quality oil which can usually be used
t h roughout the entire year.
Your Limited New Vehicle Warranty does not cover damage or ma lf u nctions due to
fa ilure to follow recommended mainte­
nance and use requirements as set forth in
the Audi Owner's Manual and Warranty
&
Ma intenance booklet .
- Use only a high quality eng ine oil that ex­
pressly complies w ith the Audi o il quality
sta ndard specified for your veh icle's e n­
gine . U sing any other oil can cause seri­
ous eng ine dam age.
- Do not m ix any l ubrica nts o r othe r addi­
tives into the eng ine oi l. Doing so can
ca use eng ine damage.
I f you need to add oil and there is no ne
availab le tha t mee ts the Audi o il qua lity
s t andard your engine requires, yo u may
add a tota l of no more than 0 .5 quart/ liter
of a high -quality "synthetic"oil t hat meets
the following specifications.
- Vehicles with gaso line engine: ACEA A3
or API S M with a viscosity grade of
SAE OW-30, SAE SW-30 or SA E SW-40.
- Vehicles with diesel engine: ACEA C3 o r
API CF with a v iscosity grade of
SAE OW-30 or SAE SW-30.
- Fo r more information abo ut engine oi l
that has been approved for your vehicle, p lease contact either your a uthori zed
Audi dealer or Audi Customer Relations
at 1 (800) 822 -2834 or visit our web site
at www.a udiusa.com or
www.aud ica nada .ca.
Eng ine oil consumption
To provide effect ive lub rication and cooling for
internal engine pa rts, all inte rnal combust ion
engines use some oil. Oil consumption varies
Checkin g and fillin g 259
from engine to engine and may change ove r
the life of the engine. Engines tend to use
more o il during the break-in period than they
do afterward, when o il cons umption has sta­
bili zed. Depending on the way the vehicle is
driven and the operati ng conditions, oil con ­
sumption can be up to 1 quart per 1,200
mil es(! lite r per 2,000 km) . Consumption
may be higher wi thin the fi rs t 3,000 m iles
(5,000 km) .
Un der normal cond itions, the rate of oil con­
sumption depends on o il quality as well as v is­
cosity, engine speed (rpm), outs ide tempera­
ture, road condi tions, the amount of oil d il u ­
t ion caused by condensed water or fue l resi­
due, and oxidation of the oi l. Oi l consump tion
may inc rease with engine wear over time, un ­
ti l replacement of worn engine parts may be ­
come necessary.
Beca use of all these variables, there is no
standard or "norma l" rate of o il cons umption .
We urge you to check the engine oil le vel at
regular intervals, p referably e very time you
fill the fuel tank, and always before a long
trip .
The oil p ressure wa rning light. is not an
indicato r of low engine oil le vel. If the wa rn ­
ing light does not go out after starting, or
flash es while dri ving (above 1500 rpm ), a
buzzer will sound . It indicates that the oil
pres sure is too low. Stop the engine immedi­
ately, che ck the engine oil level and add oil if
n ec ess ary. If the engine oil level i s normal,
but the light continues to flash , do not keep
driving or let the engine idle, as dam age may
occur .
If you believe yo ur engine uses too much o il,
we recommend that you consul t your author ­
ized Audi dea ler so that the ca use of yo ur con­
cern can be proper ly diagnosed . Keep in mind
that acc urate measurement of oil consump­
tion req uires great care and may take some
time . Your Audi dealer h as ins truc tions for
how to measure oil consumption accurately .
I),
•
•

260 Checking and filling
& WARNING
Stop! Before working in the engine com­
partment, always read and heed all WARN­
INGS
~ A in Working in the engine com­
partment on page
256 . The engine com­
pa rtment of any motor ve hicle is a poten­
tially d angerous area and can c ause ser i­
ous personal injury.
- The eng ine depends on o il to lubr icate
and cool a ll of its moving pa rts. The en­
gine o il m ust be che cked reg ularly and
k ept at the required leve l.
- Make it a habi t to have the eng ine oi l lev­
el checked every time you fill the fue l
tank .
- Too litt le engi ne oil may cause seve re e n­
gine damage.
Checking the engine oil level
The dipstick indicates the engine oil level .
Fig. 2 4 3 Illustrat ion of principle 1: Markers on oil dip ­
st ick
Fig. 2 44 Illustrat ion of p rinciple 2: Ma rkers on o il dip­
st ick
Before you chec k anythin g in the eng ine com­
partment,
a lw ays read and heed all WARN-
INGS ~.&. in Working in the engine compart­
ment on page
256.
Determin ing oil level
• Park yo ur vehicle so that it is horizontally
level.
• W hile at operat ing state tempe rature, brief­
ly let the engine run at idle and then s hut it
off .
.. Wait approx. two minutes .
.. Pull out the oil dipstick. Wipe off the oil dip­
stick w ith a clean cloth, and slide it back in
as far as it w ill go.
• Pull it back out and read off the o il level
~ fig. 243 o r ~ fig. 244. Top off the eng ine
oil, if applicable ~
page 261.
Oil level within range 0
• Do not add oil.
Oil le ve l within range@
• Yo u can add oil. Afterwards, the oil leve l
should be within range
G).
Oil level within range 0
• You must add oil. Afterwards , the oil leve l
should be wi thin range
G) .
The oil leve l needs to be checked at regular in­
te rva ls. The best times to do th is are whenev ­
er you refuel and prior to long trips .
Depend ing on the way the vehicle is dr iven
and the ope rat ing cond itions, oi l consumption
can be up to
1 quart pe r 1,200 miles (I liter
per
2,000 k m). Consumption m ay be higher
within the first
3,000 miles (5,000 km) .

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Adding engine oil~
Fig. 2 45 Eng ine co mpa rtment : cove r on the e ngin e o il
filler neck
Before you c heck anything in the engine com­
partment,
a lw ays r ead and h eed all WARN ­
ING S
9 A in Working in the engine compart­
ment on page 256 .
"' Shut the engine off.
"' Unsc rew the cap~ to the engine oil fill ing
hole
9 fig . 245, 9page 258, fig. 242 .
"'Carefu lly top off with 0.5 q uarts (0.5 liters)
of the appropriate oi l
9page 258.
"'Check the oil leve l again after two minutes
9 page 260, Checking the engine oil level.
"' Top off the oil again, if necessary.
"' Screw the cap back on the filling hole and
slide the oil d ipst ick in as far as it will go .
A WARNING
Stop! Before working in the engine com­
pa rtment, always read and heed all WARN­
INGS
9 .&. in Working in the engine com ­
partment on page 256.
The engine com ­
partment of any motor vehicle is a poten­
tially dangerous area and can cause ser i­
ous personal injury.
A WARNING
Spilled o il is a fire hazard.
- The oil fille r cap must be properly se­
c u red to prevent oil from being sprayed
on the hot engine and exhaust system
when the eng ine is running.
- The oil leve l must not be above range ~
- danger of converter or eng ine damage!
Checkin g and fillin g 261
Contact an authorized deale rship to draw
off oil, if necessary .
-Audi doe s not re commend the u se of oil
additives. They m ay damage the engine
and ad ve rse ly affe ct you r New Vehicle
War ra nty.
@ For the sake of the environment
- Under no circumstances can the oil come
in contact with the sewage network or
the soi l.
- Observe and follow legal regulations
when disposing of empty oil containers .
· Changing the engine oil
Engine oil must be changed at intervals listed
in the Warranty
& Maintenance booklet.
T he eng ine oi l and oil fi lter m ust be changed
accord ing to the mileage and time intervals
specified in yo ur vehicle's Warranty
& Mainte­
nance booklet. Do not exceed these intervals -
harmful s ludge and deposits from old engine
o il can reduce engine performance and can
lead to expens ive engine repa irs .
Changing oi l at reg ular intervals is so very im­
portant because the lubricat ing properties of
o il decrease gradually during normal vehicle
use. If you are not sure when to have the oil
c h anged, ask your authorized Audi Serv ice Ad­
viso r.
Under some circumstances the engine oil
shou ld eve n be changed more often than
spec ified for normal use. Change o il more of­
ten if you often dr ive short d istances , operate
the ve hicl e in dusty a reas or mostly under
stop- and-go t raffic conditions, or when you
use your veh icle where temperatures stay be ­
l ow freezing point for long periods.
Dete rgent additives in the oil will make fres h
o il look dark after the engine has been ru n­
ning for a sho rt time. This is normal and is not
a reaso n to change the oil more often than
recommended.
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