2015 AUDI RS5 CABRIOLET heating

182 Driving and en vironm ent
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage .
"'Try and keep well below your car 's max imum
speed.
Accelerating gently reduces fuel consump­
tion, engine wear, and does not disturb the
environment. F ue l consumption, exhaust emissions and en ­
g ine no ise increase d isproportionately at high
speeds. If you dr ive at approximately three
quarters of top speed, fuel consumption will be reduced by one half. Never dr ive faster
than the posted speed limit and weather con­
d itions permit .
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel.
"'Shut the engine off when you are not dr iv ing
the vehicle .
"'Do not warm up the veh icle by letting the
engine run at idle .
It makes sense to shut
off the e ngine in traff ic
jams, when waiting for trains to pass at ra il­
road crossings , or at traff ic lights that have
l ong wa its on red. Turning the engine
off fo r
just
30-40 seconds saves more fue l than is
bu rned s tarting the eng ine again .
It takes a long time for the engine to warm up
fu lly when it is running at idle . Howeve r, wear
and nox ious em issions 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 .
([) Note
Do not leave engine idling unattended af ­
ter starti ng . 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 o
r othe r damage to the ve hicle or
other property .
Regular maintenance
A badly tuned engine unnecessarily wastes a
lot of fuel.
"' Have your ve hicle serviced at reg ular in ter -
vals.
By having your veh icle regu la rly serviced by an
a utho rized Aud i dea le r helps to ensure that it
runs properly and econom ic all y. The cond it ion
of your veh icle not on ly affe cts its safety and
ability to ho ld its va lue, it a lso affects
fuel
con sumption .
Check your oil ea ch time you fill your tank.
The amount of o il 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 certa in
mileage has bee n driven.
You must drive your veh icle about 3,000 m iles
(5,000 kilometers) before you can properly
assess oil consumpt ion.
This also app lies to fue l cons umption and en­
gine output.
(D Note
- Have your vehicle maintained proper ly
and in accordance with the service rec ­
ommendations in your Warranty
& Main­
tenance booklet. Lack of proper ma inte­
nance as well as improper use of the ve­
hicle will impair the function of the
em iss ion contro l system and cou ld lead
to damage.
- Do not alter or remove any component of
the Emission Control Sys tem unless ap­
proved by the manufacture r.
- Do not alte r or remove any device, such
a s hea t sh ie lds, swi tches, ig nitio n w ires,
valves, which are designe d to p rotec t
your vehicle's Emission Control System
and other impo rtant vehicle compo­
nents .

188 Vehicle care and cleaning
- Never clean headlights or tail lights
with a dry cloth or sponge.
- Do not use any cleaning product that
contains alcohol, because they could
cause cracks to form.
-Wheels
- Never use any paint polish or other
abrasive materials.
- Damage to the protective layer on the
rims such as stone chips or scratches
must be repaired immediately .
-Sensors/camera lenses
- Never use warm or hot water to re-
move snow or ice from the camera
lens. This could cause the lens to crack.
- Never use abrasive cleaning materials
or alcohol to clean the camera lens.
This could cause scratches and cracks.
- Power top
- Remove bird droppings immediately.
- Never use gasoline, stain remover, ben-
zene, paint thinner or other solvents to
remove stains.
- Windows
- Remove snow and ice on windows and
exterior mirrors with a plastic scraper.
To avoid scratches, move the scraper
only in one direction and not back and
forth.
- Never remove snow or ice from win­
dows and mirrors using warm or hot
water because this could cause cracks
to form.
- To avoid damage to the rear window
defogger, do not apply any stickers on
the heating wires on the inside of the
window.
- Decorative parts/trim
- Never use chrome care or cleaning
products.
-Paint
- To reduce the risk of scratches, the ve-
hicle must be free of dirt and dust be­
fore polishing or waxing.
- To prevent paint damage, do not polish
or wax the vehicle in direct sunlight. - To reduce the risk of paint damage, do
not polish away rust film.
- Remove cosmetics and sunblock imme­
diately. Otherwise, the paint could be
damaged.
- Displays
-To avoid scratches, do not use dry
cleaning methods on displays .
-Controls
- Make sure that no fluids enter the con-
trols, because this could cause dam­
age.
- Safety belts
- Do not remove the safety belts to clean
them.
- Never clean safety belts or their com­
ponents chemically or with corrosive
fluids or solvents and never allow sharp objects to come into contact
with the safety belts . This could cause
damage to the belt webbing.
- If there is damage to the webbing, the
connections, the retractors or the buck­
les, have them replaced by an author­
ized Audi dealer or qualified workshop.
-Textiles/Vinyl/ Alcantara
- Never treat Vinyl/Alcantara with leath-
er care products, solvents, floor polish,
shoe polish, stain remover or similar products.
- To avoid damage, have stubborn stains
removed by an authorized Audi dealer
or qualified workshop.
- Never use steam cleaners, brushes,
hard sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry
the seat.
- Objects with sharp edges such as zip­ pers, rivets on clothing or belts can
cause damage to the surface.
- Open hook and loop fasteners, for ex­ ample on clothing, can damage seat
covers. Make sure hook and loop fas­
teners are closed .
-Natural leather

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-Never treat leather with so lvents, floor
polish , shoe polish, stain remover or
sim ilar products.
- Objects with sharp edges such as zip­
pers, rivets on clothing or belts can
cause damage to the surface.
- Never use steam cleaners, brushes ,
hard sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry
the seat .
- To help prevent the leather from fad­
ing, do not leave the vehicle in direct
sunlight for long periods of time. If
leaving the vehicle parked for long pe­
riods of ti me, you should cover the
leather to protect it from direct sun­
light.
Q) Tips
- Insects are eas ier to remove from paint
that has been freshly waxed .
- Regu lar wax ing can prevent rust film
from forming .
Vehicle care and cleaning 189
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Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro ­
tects the engine from freezing in the winter .
The cooling system is sealed and generally re­
quires little attention.
T he cooling system has been filled at the fac­
tory with a permanent coolant which does not need to be changed. The coolan t consists of a
mixture of specially conditioned water and the
manufacturer 's glycol-based coolant addi-
tive G13 antifreeze with ant icorros ion addi­
tives (50% for USA models ; 60% for Ca nadian
models) . Th is mixture both assures the neces­
sary frost protection and protects metal com­
ponents in the engine's coo ling system from
corrosion and scaling. It a lso raises the boil­
ing point of the coo lant.
D o not reduce the concentration o f the coo l­
ant in the summer by adding plain water .
The
proportion of coolant additive mu st be at
least 50 % but not more than 60 %
to main­
tain antifree ze protection and cooling efficien­
cy. If the coolant frost protect ion is too low,
the coolant could freeze and damage the veh i­
cle heating and eng ine cooling system .
For year-round driving, antifree ze is added at
the factory for temperatures down to:
- -31° F(-35°C)USA
- - 4 0 ° F ( -40 °C) Canada.
I f you must add coo lant, use a m ixture of wa­
ter and coolant addit ive. Mixing the coolant
addi tive wi th disti lled wate r is recommended.
A WARNING
Be fore yo u check any thing in the engine
compartment, always read and heed all
WARNI NGS
~ .&. in Working in the engine
compartment on page 195.
(D Note
- Befo re win ter sets in, have the coolan t
checked to see if t he coolant ad dit ive in
-
Checkin g and fillin g 201
your vehicle is sufficient to meet the cli ­
mate conditions . This is especia lly impor ­
tant if you live in a region where the win ­
ter is extreme ly co ld. If necessary, in­
c rease the p ropo rtion of coo lant add itive
to 60% .
- When adding coolant additive to your
cooling system, remember:
- We re commend using on ly coola nt ad­
d itive G 12++ or G 13 for your veh icle .
T his coolan t ad di tive is availab le a t au­
thor ized Audi dealers. Other types of
antifreeze can significantly reduce cor ­
rosion protection. The resulting corro­
sion can cause a loss of coolant and se­
rious engine damage .
- Do not add any type of rad iator leak seal­
ant to your vehicle's engi ne coolant .
Add ing radiator repa ir flu id may adverse ­
ly affect the f unction and performance of
your cooling system and cou ld resu lt in
damage not covered by you r New Ve hicle
Li mited War ran ty.
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202 Checking and filling
Checking the engine coolant level and
adding coolant
Be very careful when adding engine coolant.
Fi g. 1 77 En g in e c ompart men t: C over on the coola nt
ex pan sion ta nk
Fig. 178 Engine co mpar tment : ma rkin gs in th e coolant
ex pan sio n ta nk
Before you che ck anything in the engi ne com­
partment,
a lwa ys r ead and heed all WARN­
INGS c> A in Working in the engine compart ­
ment on page
195.
The "M IN " und "MAX " mark ings a re found o n
the bi -level disc in the in terior of the coolant
expansion tank
¢ fig . 178.
.,. Pa rk you r vehi cle on a level sur face .
.,. Turn off t he igni tion.
.,. Let the engine coo l down .
.,. Place a thick rag over the coolant expansion
tank and
c a refully turn the cap cou nte r­
clockwise
c> _&. .
.,. Read the eng ine coolant level inside the
coolant expans io n tank
c> fig . 177,
c>page 197 , fig. 174 . With a cold engine,
the coolant level sho uld be betwe en the
" M IN " and "MAX " ma rkings <=>
fig. 178
-arrows- . W he n t he eng ine is wa rm, the lev­
el may be slightly
above the "MAX" marking . .,.
Add coo lant mixed in the correct rat io, if
necessary
c> page 201 . Coolant may be a
maxim um of 1 mm above the MAX marking .
.,. Twist the cap on again
tightly.
The location of the coo lant expansion tan k
can be seen i n the engine compartment illus ­
tration
c> page 197.
T o obtain an acc urate reading, the engine
must be sw itched off.
T he ex pan sion ta nk in your vehicle is eq uipped
with an ele ctric coo lant level senso r.
When the coolant level is too low , the wa rn ing
li ght in the Au to-Check System <=>
page 17 will
blink u nti l yo u ad d coolant and the level has
been restored to normal. Eve n t hough t here i s
an e lectri c coo lant level senso r, we still rec ­
ommend you check the coola nt level from
time to t ime.
Coolant loss
Coolant loss may indica te a leak in the cooling
system. In t he event o f coolant loss, the coo l­
i ng system shou ld be inspected immediately
by your a uthorized Audi dea ler . It is not
eno ugh mere ly to add coolant.
In a
sealed sys tem, losses can occur on ly i f
the boili ng point o f the coo lant is exceeded as
a res ult of overheating.
Adding coolant
Rep la cement engine coo la nt must conform to
exact spe cificat ions
c> page 201, Cool ant .
We recommend using only coolant add it ive
Gl 2++ , Gl3 or in an emergency G 12 +. Do not
use a diffe rent add itive. In an emerge ncy use
plain w ater until yo u can get the correc t addi­
tive a nd can res tore the cor rect ra tio. T hi s
sho uld be done as soon as possib le .
If you have lost a considerab le amou nt of
c oolant , the n you shoul d a dd cold an tifreeze
and co ld wate r on ly w hen the e ng ine is cold.
Always use
n ew engine coo lant w hen refilling .
Do not f ill coo la nt
above the "MA X" mark. Ex-
cess coolant will be forced o ut through the .,,_

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No. Consumer
A/C system pressure sensor,
electromechanical parking
brake, Homelink, automatic
3 dimming interior rear view
m
irror, air quality/outside
air sensor, Electronic Stab ili-
zation Control (button)
5 Sound
actuator
6 Headlight
range cont rol/
head light (cornering light)
7 Headlight (corner
ing light)
Contro l modu les (e lectro-
8 mechanical parking brake,
shock absorber, quattro
sport), DCDC converter
9 Adaptive cru ise contro l
10 Shift gate/clutch
sensor
1 1 Side ass ist
1 2 Headlight range
control,
park ing system
13 Airbag
14 Rear wiper (allroad)
1 5 Auxi
liary fuse (instrument
pane l)
16 Aux
iliary fuse terminal 15
(engine area)
Fuse p anel @ (brown )
No. Con sumer
2 Brake light sensor
3 Fuel
pump
4 Clutc h sensor
5 Left
seat heating with/w ith-
out seat vent ilation
6 Electronic Stab
il iz at ion Con-
tro l (e lectric)
7 Horn
Front left door (window reg-
8 ulator, centra
l locking, mir-
ror, switch, lighting)
9 Winds hield wipe r motor
1 0 Electronic
Stabilizat ion Con-
trol (valves)
Fuses and bulb s 251
Amp s No. Consumer Amps
•
Two-door models: rear left
• window regulator; Four-
11 door models:
rear left door
30
5 (window regulator, central
lock
ing, switch, lighting)
12 Rain and light sensor
5
5
Fuse pan el© (r e d )
5/7,5 No . Consumer Amps
3 Lumbar support 10
7,5 4 Dynamic steering 35
s Interior lighting (Cabriolet)
5
5 6 W
indshield washer system,
35
h eadlight washe r system
5 7 Vehicle electrical
system
20
control module 1
5
5
8
Vehicle e lectr ica l system
30
control module 1
5 9 Left rear window regulator
7,5/20
motor (Cabriolet)/sunroof
5
15 10 Vehicle e
lectrical system
30
control module 1
10 11 R
ight rea r window regulato r
7,5/20
(Cabriolet)/sun shade motor
40 12 Anti-theft
alarm warning
5
system
Amps
5
25 5
15/30
5
15
30
30
25

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No. Consumer
5 Electromechanical
parking
brake
6 Electronic damping control
7
Electromechanical parking
brake
8 Rear exterior lighting
9 quattro sport
10 Rear
exterior lighting
1 1 Central locking
12 Termina
l 30
Fu se pa nel © (brown )
No. Con sumer
1 Luggage compartment lid
control module (allroad)
2 1
2-volt socket, cigarette
lighter
3 DCDC
converter path 1
4 DCDC converter path 2,
so und amplifier, radio
6
Right upper cabin heat ing
(Cabr iolet)
7
Electromechanical parking
brake
Right front door (w indow
9 regu lator, central lock ing,
m irror, swit ch, lig hting)
10 Left upper
cabin heating
(Cabriolet)
Two -door models: rear right
window regulator; Four-
11 door mode
ls: rear right door
(window regulator, central
locking, sw itch, lighting)
12 Cell phone prep
Fu se panel © (black )
No. Consumer
1 Right front seat heating
4
MMI
5 Radio
6 Rear view camera
Amp s
5
15
30
30
35
30
20 5
Amp s
30
20
40
30
30
30
30
30
30
5
Amps
15
7,5
5
5
Fu ses and bulb s 253
No. Consumer Amps
7
Rear window heater (all-
30
road)
8 Rear Seat Entertainment 5
Bulbs
Replacing bulbs
For your safety, we recommend that you hove
your authorized Audi dealer replace any bulbs
for you .
It is becoming increasingly more and more
difficult to replace vehicle light bulbs since in
many cases, other parts of the car must first
be removed before you are able to get to the
bulb. This applies especially to the light bulbs
in the front of your car which you can only
reach through the engine compartment.
Sheet metal and bulb holders can have sharp
edges that can cause serious cuts, parts must
be correct ly take n apa rt and then p roperly put
bac k together to he lp p revent breakage of
parts and long te rm damage from water that
can enter housings that have not been p roper­
ly re sea led .
Fo r you r safety, we re commend that you have
your autho rized Audi de aler replace any b ulbs
f or you, since your dealer has the proper too ls,
the correct bulbs and the expertise.
Gas disc har ge la mp s (Xenon l ig hts)*:
Due to the high electr ical voltage, have the
bulbs replaced by a qualified techn ic ian .
Head lights w ith Xenon light are identified by
the h igh vol tage sticker.
_&. WARNING
Changing Xenon lamps without the neces­
sary equipment can cause serious persona l
injury .
- Bulbs are pressurized and can explode
when being changed. Potential risk of in­
jury!
-
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Pressure malfunction ... ... .. .. .. .. .. 17
Sensor defective . . . . . . . . . . . . . . . . . . . . 21
Specif ication and viscos ity . ... .. .. .. . 197
temperature indicator . . . . . . . . . . . . . . . 26
E ng ine speed limitat io n ..... .. .. .. .. .. 20
Env ironment
Break- in pe riod .............. ... ... 179
Cata lytic converter ........ .. .. .. .. . 180
D isposing of yo ur vehicle ba tte ry .. .. . 208
D riving a t high speeds ..... .. .. .. .. . 182
D riving to m inimi ze pollution and no ise 18 1
Fu el . .... .. ... .. .. ..... ... .. .. ... 192
F ue l economy ..... .... ... .. .. .. ... 181
Leaks under your veh icle ... .. .. .. .. . 195
Lett ing the ve hicle stand and warm up . 182
Proper disposal of drained brake flu id . 204
Prope r disposal of dra ined engine coo l-
ant ...... ... ................ .... 202
Pr ope r disposal of dra ined engine
oil . . . . . . . . . . . . . . . . . . . . . . . . . 199, 200
Recy cling use d engine oil ... .. .. .. .. . 199
Un leaded f uel ... ...... ... .. .. .. ... 190
What should I do with an old battery? . 208
E PC
refer to Electronic powe r control . . . . . . 20
Event Data Recorder (EDR) . .. .. .. .. .. . 170
Ex haust tail pipes
C leaning ... .... .. .... ... .. .. .. ... 186
E xpansion ta nk ............ .. .. .. .. . 20 2
Exterior lighting . . . . . . . . . . . . . . . . . . . . . 51
E xterio r mirrors
Ad justing .. ... .. ..... ... .. .. .. .... 54
Dimm ing ... .. .. .. .... ... .. .. .... .. 55
Heating .. .. ............. .... .. .... 54
F
Fan
Radiator
F asten ing 203
B ooste r seats ............ .. .. .. .. . 160
Conve rtible c hild safety seats ... .. .. . 159
Infant seats 158
Fl at t ire
C hanging .. ............. .... .. ... 2 44
F loor mats . . . . . . . . . . . . . . . . . . . . . . . . . 117
F oglights(rea r) . ....... ... .. .. .. .. .. 51
F oldi ng the rear seats . . . . . . . . . . . . . . . . . 66
Inde x 273
Foot peda ls . . . . . . . . . . . . . . . . . . . . . . . . 117
Fo r th e sake of the environment
Gasoline fumes and t he env ironme nt .. 192
L etting the engine wa rm up . . . . . . 73, 76
Ref ueling . .. .. .. ................. 192
Saving f uel by early upsh ifting ... .. .. . 11
Fron t air bags
Desc ription .. .. .. ... .. .......... .. 135
H ow they wor k ....... ......... .... 140
Frontal coll is ions and the laws of p hysics 124
Front passenger's door emergency loc king 35
Front seats Adjus ting . . . . . . . . . . . . . . . . . . . . . . . . 114
Child rest rain ts in the fron t sea t .. .. .. 132
Up per cabin heati ng ... .. ...... ... .. . 72
Fuel Additives ........ .. ............... 190
Bl ended gaso line . ................. 190
Co nsu mp tion .. .. .... ......... .. .. . 24
F iller neck ... .. .. .. . .. ... .... ... .. 191
Fuel ga uge . . . . . . . . . . . . . . . . . . . . . . . . 12
Gasoline . ... .... ... .. .. ..... ... .. 190
Gasoline addit ives .. ........... .... 191
Low fue l level symbol .......... .. .. . 21
Octane rat ing .. .. ................. 190
Recommendation ........ ......... . 190
Ref uell ing ... .. .. .. . .. .... .... .. .. 192
Rese rve ...... ... .. ................ 12
T ank capa city .. .. .... ............. 262
T ank sys tem . .. .. ............. .... . 21
U nlocking the fuel fi lle r flap by hand 193
Fuel filler flap Unl ocking the fuel fi lle r flap by hand 193
Fuses Ass ignment . . . . . . . . . . . . . . . . . 250, 252
Replacing ... .. .. .. . .. .... .... .. .. 250
G
Garage door opener (Home link) ..... .. . 40
Gas d ischa rge lamps ............... .. 253
Gauges Engine coolant temperatu re . . . . . . . . . . 10
Fuel ga uge . . . . . . . . . . . . . . . . . . . . . . . . 12
T acho meter . .. .. ................. . 11
General illustration Instruments and controls ............. 8
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