2015 AUDI RS5 CABRIOLET engine

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Many gasoline grades are blended to perform
especia lly we ll for winter or summer driving.
During seasonal change-over , we suggest that
you fill up at busy gas stations where the sea­ sonal adjustment is more likely to be made in
time.
Q;) 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 fuels that fail to meet the
spec ified criter ia in this chapter .
- If you are unable to determine whether
or not a particular fuel blend meets the
spec ificat ions, ask your service station or
i ts fuel supplier .
- 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 respons ibility of Audi and are not
covered under the New Vehicle or the
Emission Control System Warranties.
- If you experience a loss of fue l 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
A major concern among many auto manufac­
turers is carbon deposit build-up caused by
the type of gasoline you use .
Although gasoline grades differ from one manufacturer to another, they have cer tain
things in common. All gasoline grades contain substances that can cause deposits to collect
on vital engine parts, such as fuel injectors
and intake valves. Although most gasoline
brands include additives to keep engine and
fuel systems clean, they are not equally effec­
tive.
Fuel supply and filling your fuel tank 191
Audi recommends using TOP TIER Detergent
Gasoline . For more information on TOP TIER
Detergent Gasoline, please go to the official
website (www .toptiergas .com) .
After an extended period of using inadequate
fuels, built -up carbon deposits can rob your
engine of peak performance.
CJ) Note
Damage or malfunction due to poor fuel
quality is not covered by the Audi New Ve­
hicle Limited Warranty.
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear
s ide panel behind the fuel filler flap.
If the power locking system should fail, you
can still open the flap manually -for detailed
instructions see
~ page 193.
You can find the fuel tank capacity of your ve ­
hicle in
~page 262 .
The label on the inside of the fuel filler flap
tells you the correct fuel for your vehicle. For
more information about fuel specifications,
see
~ page 190 .
Your vehicle fuel tank has an on-board refuel­
ling vapor recovery system. This feature helps
to prevent fuel vapors from escaping from the
tank and pollut ing the environment while you
refuel your vehicle. In order to fill the tank
properly while protecting the environment,
please follow this refueling procedure careful­
ly.
A WARNING ~
Under normal operating conditions, never
carry additional fuel containers in your car.
Gas canisters and other containers used to
transport fuel can be dangerous. Such con­
tainers, full or empty, may leak and could
cause a fire in a collision . If you must
transport fuel to use for your lawn mower, ..,.
•
•

192 Fuel suppl y and filli ng your fuel t ank
snow blower, etc., be very careful and al­
ways observe local and state laws regard­ ing the use, transportat ion and storage of
such fuel containers . Make certain the con­
tainer meets industry standards (ANSI/
ASTM F852 -86) .
(D Note
Never drive your vehicle unt il the fuel tank
is completely empty . The irregular supply
of fuel can cause misfiring. Gasoline could
enter the exhaust system and damage the
catalyt ic converter.
Refuelling
Fig. 168 R ig ht rea r ve hicle s ide: Open ing th e f uel fille r
fl ap
Fi g. 16 9 Fu el filler fla p w it h attac hed fuel c ap
When activ ati ng the central locking, the f uel
fi ller flap is au tomatically un locked or loc ked.
Refue l the vehicle with the ign ition turned
off .
Tak ing th e fu el cap off
• Turnoff the ignit ion .
• Press the left side of the fue l filler flap to
open it
~ fig. 168 -a rrow- .
• Unsc rew fuel c ap counter-clockwise and
hang it on the fuel fille r flap
~ fig. 169. Refuelling proc
edur e
• Insert the fuel nozzle from the gasoline
pump into the fuel fille r neck as far as it wi ll
go .
• Select a med ium r efuelling rate so that the
no zz le switches off automatically when the
tank i s full.
Putting the fu el cap back on
• After fi lling your tank, twist the fuel cap
clockwise as far as it will go .
• Close the fue l filler flap.
T o avoid fuel spilling or evaporating from the
fuel tank always close fuel cap properly and complete ly .
A WARNING
-
Improper refue ling or handling of fuel can
cause fire, explosion and severe burns.
- Fue l is highly flammable and can cause
severe burns and other injur ies.
- Failure to shut the engine off while refu­
eling and/or to insert the pump nozzle
fully into the fuel filler neck could cause
fuel to spray out of filler neck or to over­
flow . Fuel spray and overflowing fuel can
cause a fire .
- Never use a cellular telephone while re­
fueling . The electromagnet ic rad iat ion
can cause sparks that can ignite fuel va­
pors and cause a fire .
- Never get back into your vehicl e white re­
fue ling .
If in exceptional circumstances
you mu st get back in your vehicle while
ref ueling, make ce rtain that you close
the door and touch metal to discharge static electricity before touching the fill­
er nozzle again. Static e lectricity can
cause sparks that can ignite fuel vapors
re leased during ref ueling .
- Never smoke or have an open f lame any­
where in or near y our veh icle when refu­
eling or filling a portab le fuel conta iner.
- For your safety, we strongly recommend
that you do not travel with a portable

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Checking and filling Engine hood
Releasing and opening the engine hood
The engine hood is released from inside the
vehicle .
Fig . 172 Dr iver's side footwell: eng ine hood release
lever
F ig . 173 Re lease lever un der the engine hood
Before opening the engine hood, make sure
that the windshield w ipers are flat against the
windshield. Otherwise, they could damage the
paint on the hood.
.. With the driver's door open, pu ll the lever
under the instrument panel in the direction
of the arrow
q fig. 172.
.. Raise the hood slightly q &.
.. Press the rocker switch under the hood up­
ward
c::> fig . 173 . This re leases the catch .
.,. Open the hood.
& WARNING
Hot engine coo lant can burn you.
- To redu ce the r isk of being burned, never
open the hood if yo u see or hear steam
or coolant escaping from the engine
compartment. Wait until no steam or
Checkin g and fillin g 195
coolant can be seen or heard before care­
fully opening the hood.
Closing the engine hood
.. Pull the hood down until the pressure from
the struts is reduced .
.. Let the hood
drop down and latch in place .
Do not try to push it shut; it may fail to en­
gage
q &, .
_&. WARNING
-
A hood that is not comple tely latched
could fly up and b lock your view while dr iv­
ing.
- When you close the engine hood, chec k it
to make sure the safety catch has p ro pe r­
ly engaged . The hood sho uld be flush
with the surrounding vehicle body parts .
-If you notice while driv ing that the hood
is not secured prope rly, stop at once and
close it.
Working in the engine compartment
Be especially careful whenever you work in the engine compartment .
Whenever yo u mu st p erform an y w or k in th e
eng in e compa rtment, for example checking
and filling differ ent fluid s, there i s a ri sk of
injury , burns and accidents. To prevent per­
sonal injury always obser ve the following
WARNINGS . The eng ine compa rtment of an y
v ehicle is a hazardous are a
q A.
_&. WARNING
To help avoid injury, before you check any­
thing under the hood:
- Turn off the engine.
- Remove the ignition key.
- Apply the parking brake .
- Move selector lever of automatic trans -
mission to "P" (Park).
- Always le t the engine cool down . Hot
components wi ll bur n skin on contact .

196 Checking and filling
-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:
- First, fully apply the parking brake,
move selector lever of automatic trans­
mission 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 .
(I) 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.

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Checking and fillin g 197
Engine compartment
Engine compartment
These are the most important items that you can check.
Fig. 174 Typical layout for containers and engine oil filler cap
(D Coolant expansion tank (- L) . . . 202
@ Jump start point(+) under a cov-
er .. .. ... ....... ........ ..
207, 256
@ Engine o il filler cap ( @ Jump start point(-) with hex
head screw ............ .... .
207, 256
© Brake flu id reservoi r((())) . . . . . 204
® W indshie ld/headlight* washer
container
(0) . . . . . . . . . . . . . . 208
A WARNING
Before yo u check anything in the engine
compartment, always read and heed all
WARNINGS
q .& in Working in the engine
compartment on page 195.
-
Engine oil
Engine oil specifications
The engine oil used must conform to exact
specifications .
The service interval disp lay in the instrument
cluster of your vehicle will inform y ou when it
is time for an oil change. We recommend that
you have your oil changed by an authorized
Audi Se rv ice Advisor .
If you have to top off the o il between o il
changes, use the Audi o il quality standard
specified in the tab le.
Audi oil quality standard
Gasoline
VW 502 00 or
eng ine vw 504 00 ...

198 Checking and filling
Using the proper engine oil is important for
the functionality and service life of the en­
gine. Your engine was factory-filled with a
high-quality oil which can usually be used
throughout the entire year.
0 Note
Your Limited New Vehicle Warranty does
not cover damage or malfunctions due to
failure to follow recommended mainte­
nance and use requirements as set forth in
the Audi Owner's Manual and Warranty
&
Maintenance booklet.
- Use only a high quality engine oil that ex­
pressly complies with the Audi oil quality
standard specified for your vehicle's en­
gine . Using any other oil can cause seri­
ous engine damage.
- Do not mix any lubricants or other addi­
tives into the engine oil. Doing so can
cause engine damage.
If you need to add oil and there is none
available that meets the Audi oil quality
standard your engine requires, you may
add a total of no more than 0.5 quart/liter
of a high-quality "synthetic"oil that meets
the following specifications.
- Vehicles with gasoline engine: ACEA A3
or API SM with a viscosity grade of
SAE 0W-30, SAE SW-30 or SAE SW-40.
- For more information about engine oil
that has been approved for your vehicle, please contact either your authorized
Audi dealer or Audi Customer Relations
at 1 (800) 822-2834 or visit our web site
at www.audiusa .com or
www .audicanada .ca .
Engine oil consumption
The engine in your vehicle depends on an ade ­
quate amount of oil to lubricate and cool all
of its moving parts.
In order to provide effective lubrication and
cooling of internal engine components, all in­
ternal combustion engines consume a certain amount of oil. Oil consumption varies from
engine to engine and may change significantly
over the life of the engine. Typically, engines
with a specified break-in period (see
¢ page 179) consume 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 oil, the RPM (revolutions per minute) at
which the engine is operated, the ambient
temperature and road conditions . Further fac­
tors are the amount of oil dilution from water
condensation or fuel residue and the oxida­
tion level of the oil. As any engine is subject to
wear as mileage builds up, the oil consump­
tion may increase over time until replacement of worn components may become necessary.
With all these variables coming into play, no
standard rate of oil consumption can be es­
tablished or specified. There is no alternative
to regular and frequent checking of the oil lev­ el, see
Note.
If
the yellow engine oil level warning symbol
El in the instrument cluster lights up, you
should check the oil level as soon as possible
¢ page 199. Top off the oil at your earliest
convenience
¢ page 199.
A WARNING
--
Before you check anything in the engine
compartment, always read and heed all
WARNINGS¢
& in Working in the engine
compartment on page 195.
{(D Note
Driving with an insufficient oil level is like­
ly to cause severe damage to the engine .
(D Tips
- The oil pressure warning display. is
not an indicator of the oil level. Do not
rely 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. .,.

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-If you have the impression your engine
consumes excessive amounts of oi l, we
recommend that you consult an author­
ized Audi dealer to have the cause of
your concern properly diagnosed. Keep in mind that the accurate measurement of
oil consumption requires great care and may take some time. An authorized Audi
dealer has ins tructions about how to
measure oil consumpt ion accura tely.
Checking the engine oil level
F ig. 175 MMI Display: Oil leve l indicator
Read oil le vel
"' Park your vehicle so that it is horizonta lly
level.
"' Shut the engine off when it is at operating
temperature.
"' Switch only the ignition back on .
"' Wa it approx. two minutes.
"' Se lect: Funct ion button
I _C_A_R_I > Oil l e v e l. Or
"' Se lect: Funct ion button
I CARI > Car sy s-
tem s* control button > Servicing & check s >
Oil level.
"' Read the oil leve l in the MMI* Display
r:::> fig. 175. Add engine oi l if the bar of the
o il level indicator is near "min"
r:::> page 199
Depending on the way the vehicle is driven
and the operating conditions, oil consumption
can be up to 1 quart per 600 mi les (0.8 liter
per 1,000 km). Consumption may be higher
within the first 3,000 miles (5,000 km) .
(D Tips
The oil level indicator in the MMI* Disp lay
is only an information display . If the oil
level is too low, a min imum oil warning ap-
Checkin g and fillin g 199
pears in the instrument cl uster . Add oil
Q page 199. If the hood has been opened,
the current oil leve l is shown in the instr u­
ment cluster the next time the ignition is
switc hed on.
F ig . 17 6 En gin e compart ment: Cover on the oil filler
n eck
"' Before you check anything in the engine
compa rtment,
alwa ys read and h eed all
WARNINGS r::> .&. in Working in the engine
compartment on page 195.
"' Shu t the eng ine off.
"' Unscrew the cap
't::::r. to the engine oil filling
hole
¢ fig. 176, ¢page 197, fig. 174.
"'Carefully top off with 0 .5 quarts (0 .5 liters)
of the appropr iate oil
¢page 197.
"'Check the oil level again after two minutes
r:::> page 199, Checking the engine oil level.
"'Top off the o il aga in, if necessary .
"' Screw the cap back on the fi lling hole .
.&_ WARNING
-W hile topping off, the o il m ust n ot come
in contact with hot e ngine parts -fir e
hazard !
- Th e oi l filler cap mus t be p roperly se­
cured to prevent oil from being sp rayed
on the hot engine and exhaus t system
when the engine is runn ing -fire haza rd!
- If you r skin has come in contact wi th the
e ngine o il, you must subse quently
cleanse it thorough ly.
(D Note
- Check the oil leve l using the r adio or
M MI*. I f the message
Plea se reduce oil

200 Check ing and filling
le vel appears, contact your authorized
Audi dealer or qualified workshop to have excess oil extracted if necessary.
- Aud i d oes not recomme nd th e use of o il
add it iv es. T he y ma y dam ag e the e ngine
and ad ve rsel y a ffect you r New Vehicle
Wa rrant y.
@ For the sake of the environment
- Under no circumstances can the oil come
in contact with the sewage network or
the soil.
- Observe and follow lega l regu lations
when disposing of empty oil containers.
Changing the engine oil
We recommend that hove your oil changed by
on authori zed Audi dealer or a qualified serv­
ice station.
Before you check anything in the engine com­
partment,
a lways r ea d and h eed all W ARN ·
ING S
q & in Working in the engine comport­
ment on page 195.
The engine oil must be changed according to
the intervals specified in your Warranty
&
Maintenance book let. This is very important
because the lubricating properties of oil di­
minish gradually dur ing normal veh icle use .
Under some circumstances the engine oi l
should be changed more frequently . Change
oil more often if you drive mostly short dis­
tances, operate the vehicle in dusty areas or
under predominantly stop-and-go traffic con·
d itions, or have your veh icle where tempera·
tures remain below freez ing fo r extended pe­
riods.
Detergent addit ives in the o il w ill make fresh
oil look dark after the eng ine has been run­
n ing for a short time. This is no rma l and is not
a reason to change the oil more often than recommended.
Because of the prob lem of proper disposal ,
a long w ith the special tools and necessary ex­
pertise required, we strong ly recommend that you have your oil changed by an authorized
A
udi de ale r or a qualified service station.
If yo u choo se t o c hange y our oi l yourse lf ,
please note the follow ing important informa ­
t ion:
_& WARNING
To reduce the risk of personal injury if you
must change the eng ine oil in your vehicle
yourself:
- Wear eye protection .
- To reduce the risk of burns from hot en -
gine oi l, let the engine cool down to the
touch .
- When removing the o il dra in p lug with
your fingers, stay as far away as possible.
Always keep your forearm parallel to the ground to help prevent hot oil from run· n ing down your arm.
- Dra in the oil into a container designed
for this purpose, one large enough to hold at least the tota l amount of oil in
your engine .
- Engine oil is poisonous. Keep it we ll out
of the reach of children.
- Continuous contact with used eng ine o il
is harmful to your sk in . Always protect
your skin by washing oil off thoroughly
wit h soap and water.
(D Note
Never mix oil additives with your engine
oil. These additives can damage your en­
g ine and adversely affect your Aud i Limit­
ed New Veh icle Warranty.
@ For the sake of the environment
- Before changing your oil, first make sure
you know where you can properly dispose of the used oil.
- Always dispose of used eng ine oil proper­
ly. Do not dump it on garden soil, wood­
ed areas, into open streams or down
sewage drains.
- Recycle used engine oil by taking it to a
used engine oil collect ion faci lity in you r
area, or contact a service station.