2015 AUDI RS5 CABRIOLET open hood

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Instrument s and warning /indicator lights 11
A WARNING
- Always observe the warning in
c::> page 195 , before opening the hood
and checking the engine coolant level.
- Never open the engine hood if you see or
hear steam, or if you see engine coolant
dripping from the engine compartment.
You could burn yourself. Let the engine
cool off first so that you cannot hear or
see any steam or engine coolant .
(D Note
-Mounting additional lights or accessories
in front of the air inlets reduces the cool­
ing effect of the rad iator. At high outside
temperatures or high eng ine load , the
engine could overheat.
- The front spoiler has been designed to
properly distribute the cooling air when
the veh icle is moving .
If the spoiler is
damaged , this cou ld reduce the cooling
effect and the engine co uld then over­
heat. Ask your authorized Aud i dealer for
assistance.
Tachometer (engine rev counter)
The tachometer indicates the engine RPM
(revolutions per minutes).
I f engine RPM drops below 1,500, you should
downshift to the next lower gear . T he red area
at the end of the scale indicates maximum
perm issible engine RPM after the break-in pe­
riod. Before reaching this area, move these­
lector lever to position 0/5 or ease your foot
off the accelerator pedal.
@) Note
The tachometer needle@c::> page 10 ,
fig. 3 shou ld only briefly be in the red
zone: you could damage your engine! The
beg inning of the red zone varies depend-
ing on the engine .
@) For the sake of the environment
Upshifting early saves fuel and reduces en­
gine noise.
~ button
Fig. 4 SET button in th e ins trume nt cluster
The !SET ! button performs the following func­
tions:
Switching on time, date, temperature
display and odometer
The display appears for approximate ly 30 sec­
onds when you press the
I S ET ! button c::> fig . 4
with the ignit ion off .
Starting the Auto-Check sequence
The Auto-Check system constantly monitors
certa in individual functions and components
of the vehicle when the ignition is turned on
and when the vehicle is moving .
With the ignition turned on, you can start the "Auto-Check sequence" by pressing the
! SE T!
button . You can perform an Auto-Check se­
quence when the vehicle is stationary and the
ignition is turned on or when the vehicle is
moving slower than 3 mph (5 km/h).
In addition, the number of keys initialised for
your vehicle is displayed.
L2 3 /3 means that
three keys have been initialised . This feature
enables used car buyers to make sure they
have received all of the keys.
If you are given only two keys, for ins tance ,
you should take the vehicle and the ex isting
keys to an authorized Audi dealer to have the
missing key d isabled .
It is also important to
notify your insurance company about the loss.
Setting the speed warning
By pressing the !SET ! button briefly, you can
set threshold 1 of the speed warning wh ile
you are driving
c::> page 80 . By maintaining II>

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er
u..
co ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Instrument s and warnin g/indic ator ligh ts 15
Adaptive cruise contro l*
~ page 92
High beam
~page 52
BRAKE /((J)) Brake system
The light i llum inates when the ignition is
switched on. It goes out after the engine has been started . Th is indicates that the brake
warn ing light is functioning properly .
If the brake wa rning light doe s not light up
w hen t he engine i s cr an ki ng , th ere ma y be a
malf unct ion in the ele ctric a l s ystem. In th is
c as e, c ont act your author ize d Audi dealer .
If the brake system warning/ind icator light
turns on, there is a brake system malfunction.
1111 ( USA mod els)/ . (Canada m odel s)
Stop veh icle and che ck brake f luid le vel
If the indicator light t urns on and the mes ­
sage appears, proceed as follows :
i.. Pull off the road .
1> Stop the vehicle.
1> Turn off the engine.
1> Check the brake flu id level ~ page 204.
1> Contact your nearest authorized repair fa-
ci lity if necessary.
W arning! Fault in br ake sy ste m . Conta ct
de aler
If the ABS indicator light rJl1 (USA mode ls)/
ii] (Ca nada models), the ESC ind icator light
GJ and the b rake system indicator ligh t
1111 (USA models);II (Canada models) turn
on and the message appears , the ABS, ESC
and braking distribution are not working
~ & .
Ca re fully drive to yo ur au thorized A ud i dealer
immed iately to have the malfunction correct ­
ed ~& -
1111 (USA m odels)/ . (Canada m odel s)
Parkin g brake sy ste m f ault! See own er' s
ma nual
- If the indicator light and the message ap­
pear
when stati onary o r aft er swit ching the ignition on
,
check if you can release the
parking brake. After releasing the parking
brake, carefully drive to your authorized
Audi dea ler immediately to have the ma l­
function correc ted. If you cannot release the
parking brake, seek professional assistance.
- If the ind icator light and the message ap ­
pear
w hile d riving , the emergency brak ing
function may not be available. It may not be
possible to set the park ing b rake or release
it once it has been set . Seek profess ional as­
sistance .
(USA models): If the warn ing light
1111 and
the warn ing light
Ei'J appear together, imme ­
diately contact your authorized Audi dealer or
qualified workshop to have a ll brake pads in­
spe cted
~ page 20.
When the light comes on, an aud ible warning
s ignal is also g iven .
A WARNING
-Always observe the warn ings in
Q page 195, before openi ng the hood
and checking the brake flu id.
- Driving with low brake fluid is a safety
ha zard . Stop the car and get professiona l
assis tance.
- I f the
1111 (USA models) ;II (Canada
models) brake system ind icator light
turns on together with the ABS and ESC
indicator lights, the ABS/ESC regulating
function may have failed. Functions that
stabilize the vehicle are no longer avai la­
ble. This could cause the vehicle to
swerve and increase the r isk of slid ing .
Drive carefully to the nearest authorized
Aud i deale r or other q ualified workshop
and have the malfunction corrected .
- If the brake warning/ind icator light does
not go out after a few seconds and the
pa rking brake is re leased, or lights up
while you are dr iving, t he f lu id leve l in
the brake fl uid reservo ir is too low. If you
believe that it is safe to do so, proceed
immediate ly at low speed to the nearest
Ill-

30 Openin g and clo sing
Opening and closing
Power locking system
General description
The power locking system locks or unlocks all
doors and the rear lid simultaneously.
You can lock and unlock the vehicle centrally.
You have the following choices:
- Remote master key~
page 33,
-Door handles with convenience key*
~page 34,
-Lock cy linder at the dr iver's door
~ page 35, or
- Power loc king switch inside
~ page 34.
Automatic l ocking
The automatic locking feature locks all the ve ­
h icle doors and the rear lid when you drive
faster than 9 mph ( 15 km/h) .
The car is unlocked again once the ignition key is removed. In addition, the veh icle can be un ­
locked if the opening function in the power
lock ing system switch or at one of the door
leve rs is actuated. The Auto Loc k function can
be turned on and off in the rad io or
MMI*
~ page 35.
Addit ionally, in the event of a crash with a ir­
bag deployment the doors are automatically
un locked to allow access to the veh icle.
Selective unlocking
When you lock the vehicle, the power locking
system w ill lock the doors and the rear lid .
When unlocking, you can set in the rad io or
MMI* whether
only the dr iver's door or the
enti re ve hicle should be unlocked
~ page 35.
Anti -th eft alarm warning system
If the anti-theft alarm warning system de­
tects a break- in into the vehicle, acoust ic and
visua l wa rning signals are triggered.
The anti -theft warn ing system is act ivated au ­
tomatically when you lock the vehicle .
It is de­
activated when u nlocking using the remote key, with the mechanica
l key, and when yo u
switch on the ignition.
T he alarm a lso t urns off when t he a la rm cycle
has expired.
Turn signals
When you u nlock the veh icle, the turn s ignals
flash twice , when you lock it once . If they do
not flash, one of the doo rs, the luggage com ­
partment lid or the hood is not locked or the
ignition is s till sw itched on.
Unint entionally locking yourself out
In the follow ing cases there safegua rds to
prevent you lock ing you r remote master key in
the vehicle:
- The vehicle does not lock w ith the power
lock ing switch ~
page 34 if the drive r's
door is open .
- On veh ides with convenience key*, if the
most recently used master key is in the lug­
gage compa rtment, the rear lid is automat i­
cally un locked again after it is closed.
Do not lock your veh icle w ith the remote mas­
ter key or convenience key* unt il all doors and
the rea r lid a re closed . In this way you avoid
locking yourself out accidentally .
A WARNING
-
-When you leave t he veh icle, alw ays re ­
move the ignition key and take it with
you . This will prevent passengers (chil­
dren, for example) from acc identally be­
ing locked in the vehicle should they acci­
dentally press the power locking switch in the front doors .
- Do not leave ch ildren inside the vehicle
unsuperv ised. In an emergency it would
be imposs ible to open the doors from
the o utside without the key .
(D Tips
- In the event of a crash with airbag de­
ployment all locked doors will be auto­
matically unlocked to give access to the
vehicle occupants from the outside.

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@ For the sake of the environment
Dispose of dead batteries properly so as
not to pollute the environment.
@ Tips
The replacement battery must be the
same specification as the original.
Emergency unlocking of the ignition key
In the event of malfunctions in the electrical
system, it may happen that you cannot re­
move the ignition key .
• Remove the mechanical key Q page 32.
• Lock the vehicle using the mechanical key
Q page 3 5.
• Have the electrica l system inspected by an
authori zed Audi dealership .
Locking and unlocking the vehicle with
the remote control
Fig. 21 Remote master key: function but tons
• Press button @to unlock the vehicle
Qfig . 21.
• Press button {jj to lock the vehicle r::!:> .& in
General description on page 30 .
• Press button e5 briefly to unlock the rear
lid .
• Press the button
e5 for at least one second
to open the rear lid .
• Push the red
IPANICI button to activate the
panic function. The horn sounds and the
turn s ignals flash . Push the red
I PANIC ! but­
ton again to deactivate the panic function.
If the vehicle is unlocked and no door, the rear
lid or the hood is opened within 60 seconds,
Opening and closing 33
the vehicle locks itself again automat ica lly.
This feature prevents the vehicle from being
accidentally left unlocked over a long period of time.
It depends on the settings in the radio or
MMI * whether the entire vehicle is unlocked
or only certain doors
r::!:> page 35.
On vehicles with automatic transmission, the
selector lever must be in the P position, other­
wise the vehicle cannot be locked.
A WARNING
Read and follow all WARNINGS r::!:> .&. in
General description on page 30.
(D Tips
- In order to make sure the locking func ­
tion is working, you should a lways keep
your eye on the vehicle to make sure it is
properly locked.
- Do not use the remote control if you are
inside the car, otherwise you may unin­
tentionally lock the vehicle, and then you
would set off the anti-theft alarm when
you try to start the engine or open a door . In case this happens anyhow, push
t he unlock button@.
- Use the pan ic function only if you are in
an emergency s ituation.
-Add itional remote control key functions
r::!:>page39 .

86 Transmission
-Unintended vehicle movement can cause
serious injury .
- Never leave your vehicle with the engine
running while in gear. If you must leave
your vehicle when the engine is running,
activate the parking brake and move the
selector lever to P .
- Power is still transmitted to the wheels
when the engine is running at idle. To
prevent the vehicle from "creeping", you
must keep your foot on the brake when
the engine is running and the selector
lever is in D/S or R or "tiptronic" mode is
selected.
- Do not press the accelerator pedal when
changing the selector lever position
while the vehicle is stationary and the
engine is running.
- Never shift into
R or P while driving.
- Before driving down a steep slope, re-
duce your speed and shift into a lower
gear with "tiptronic".
- Do not ride the brakes or press the brake
pedal too often or too long when driving
down a hill. Constant braking causes the
brakes to overheat and substantially re­
duces braking performance, increases
braking distance or causes complete fail­
ure of the brake system.
- To prevent the vehicle from rolling back
when stopping on inclines, always hold it
in place with the brake pedal or parking
brake .
- Never hold the vehicle on an incline with
a slipping clutch . The clutch opens auto­
matically when it becomes too hot from
the overload . An indicator lamp
l'§J illu­
minates and a driver message appears
Q page 88 when the clutch is overload­
ed.
- If the engine must remain running, never
have any driving position engaged when
checking under the hood. Make sure the
selector lever has securely engaged and
is locked in P with the parking brake set
Q page 195. Otherwise, any increase in
engine speed may set the vehicle in mo- tion
, even with the parking brake ap­
plied.
@ Note
- When stopping on an incline, do not try
to hold the vehicle in place by pressing
the accelerator pedal while a driving gear is selected. This can cause the transmis­
sion to overheat and can damage it. Acti­
vate the parking brake or press the brake
pedal to prevent the vehicle from rolling .
- Allowing the vehicle to roll when the en­
gine is stopped and the selector lever is
in N will damage the transmission be­
cause it is not lubricated under those cir­
cumstances.
(D Tips
For safety reasons, the parking brake is re­
leased automatically only when the driv­
er's safety belt is engaged in the buckle.
Hill descent control
The hill descent control system assists the
driver when driving down declines.
Hill descent control is activated when these ­
lector lever is in D/S and you press the brake
pedal. The transmission automatically selects
a gear that is suitable for the incline. Hill de ­
scent control tries to maintain the speed ach­
ieved at the time of braking, within physical
and technical limitations. It may st ill be nec­
essary to adjust the speed with the brakes.
Hill descent control switches off once the de­
cline levels out or you press the accelerator
pedal.
On vehicles with the cruise control system*
Q page 81 , hill descent control is also activat­
ed when the speed is set.
A WARNING -
Hill descent control cannot overcome
physical limitations, so it may not be able
to maintain a constant speed under all

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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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-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