2015 AUDI RS5 COUPE heating

Smart Technolog y
(D Tips
-But even energy management cannot neg­
ate the limits of physics. Consider that the power and life of a battery are limited.
- If starting ability is threatened, the indica­
tor light (•)appears
Qpage 16.
What you should know
The highest priority is given to maintaining start­
ing capability.
The battery is severely taxed in short-distance
driving, in city traffic and during the co ld time of
year . Ab undant electrical energy is required, but
only a little is generated. It is also critical if the
engine is not runn ing and electrical components
are turned on. In this instance energy is being
consumed but none is being generated.
It is in precisely these situat ions that you wi ll no­
tice energy management actively regulating the
d istr ibut io n of energy.
Vehicle s tand s for an exte nded p eriod
If you do not drive your vehicle over a period of
several days or weeks, e lectrica l components are
gradually cut back or switched off. This reduces
energy consumption and maintains starting ca­
pability over a longer period. Some of the con­
ven ience funct ions may not operate, such as the
interior lights or the powe r seat adjustment. The
conven ience functions will be ava ilable again
when you sw itch on the ign it io n and start the en­
g ine.
With th e engine turned off
If you listen to the radio, for example, with the
engine turned off or use other MMI funct ions,
the battery is being discha rged .
If starting capability is jeopardized due to energy
consumption, a message appears in the MMI dis­ p lay . The message ind icates that the system will
be sw itched off automat ica lly in a moment. If
you wish to cont inue using the functions , you
have to start the engine .
176 With the en
gine running
Although elec trical energy is generated when the
vehicle is being d riven, the battery can become
discharged . This happens mostly when litt le en­
ergy is being generated and a great deal con­
sumed and the battery's state of charge is not
optimal.
T o bring the energy ba lance back into equilibri­
u m, consumers whic h req uire especially large
amounts of energy are temporari ly cut back or
switched off. Heating systems in part icular re­
quire a great deal of energy. If you notice, for ex­
ample, that the heated seats* o r the heated rear
window are not heating, they have been tempo­
r ari ly cut back o r switched off . Th ese systems w ill
be ava ilable again as soon as the ene rgy ba lance
has been res tored.
You w ill also notice that engine id le speed has
been increased slightly . Thi s is normal and not a
ca use for concer n. By increasing eng ine idle
speed the addi tional energy required is gene rated
and the battery is charged.

Driving and th e environment
It makes sense to shut off the engine in traffic
jams, when waiting for trains to pass at rai lroad
crossings, or at traff ic lights that have long waits
on red. Turning the eng ine off for just 30-40 sec­
onds 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 nox ious em issions are especially h igh when
the engine is warm ing up. So you should dr ive
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 after
starting. If warning lights should come on to
indicate improper operation, they would go
unheeded. Extended id ling a lso produces
heat, wh ich co uld resu lt in overheating or ot h­
er damage to the vehicle or other property .
Regular maintenance
A badly tuned engine unnecessarily wastes a lot
of fuel.
~ Have you r vehicle se rv iced at regular i nte rva ls.
By having your vehicle regularly serviced by an
author ized Audi dealer helps to ensure that it
r u ns p roperly and economically. The condition of
your veh icle not only affe cts its safety and ability
to hold its va lue, i t also affects
fue l con sump ­
tion.
Ch eck your oil each tim e you fill your tank .
The amount of oil used is related to engine load
and speed .
It is normal for the oil consumption of a new en­
g ine to reach its lowest value after a certain mile­
age has been driven.
You must drive yo ur vehicle about 3,000 miles
(5,000 ki lometers) before you can properly as­
sess o il consumption .
This a lso applies to fuel consumption and engine
output .
180
(D Note
-Have your veh icle ma intained properly and
in accordance with the service recommenda­
tions in your Warranty
& Maintenance book­
let. Lack of proper maintenance as well as
improper use of the vehicle will impair the
function of the emission control system and cou ld 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, sw itches, ignit ion wires,
valves, which a re des igned to p rotect your
vehicle's Emission Control System and other
impo rtant vehicle components.
Fewer short trips
Fuel consumption will always be relatively high
on short trips.
~ Tr y to avoid dr iv ing sho rt distances w ith a co ld
eng ine .
The eng ine and cata lytic converter have to reach
their opt imal
op erat ing temperature to reduce
fuel consumpt io n and noxious em issions effec­
tive ly.
Just after starting, a co ld eng ine in a mid -s ize car
o nly achieves a fuel economy of 6-8 m iles per
gallon (30-40 l/100 km). After about a half a
mile, fuel economy climbs to 12 mpg ( 20 l/100
k m). After about
2.5 mi les ( 4 km) , the eng ine is
at i ts p roper operating tempera ture and fuel
economy has reached a normal level. So you can
see that yo u should avo id short trips whenever
poss ib le.
The
outside temperature is also cr itical in th is re­
gard. Your car cons umes more fuel in the winter
than in the summer.

Checking and F ill in g
@ For the sake of the environment
- Under no circumstances can the oil come in
contact with the sewage network or the soil.
- Observe and fo llow lega l regu lations when
disposing of empty oil containers .
Changing the engine oil
We recommend that hove your oil changed by on
authorized Audi dealer or a qualified service sta­
tion.
Before you check anything in the engine compa rt ­
ment,
alway s read and heed all WARNINGS ¢ .&.
in Working in the engine comportment on
page 187.
The engine oil must be changed according to the
i n terva ls specified in yo ur Warranty
& Mainte­
nance booklet . This is very important because the
lubricat ing propert ies of o il diminish gradua lly
during normal vehicle use.
Under some circ umstances the engine oi l sho uld
be changed more frequent ly . Change oil more of­
ten if you drive most ly short distances, operate
the vehicle in dusty areas or under predom inantly
stop-and-go traffic condit ions, or have your vehi­
cle where temperatures rema in below freezi ng
for extended periods.
Detergent addit ives in the o il w ill make fresh oil
look dark after the engine has been running for a
short time. This is normal and is not a reason to
cha nge the oil mo re often than recommended .
Because of the problem of proper disposa l, along
with the special tools and necessary expertise re­
qu ired, we stro ngly recommend that you have
your oil changed by an autho rized
Aud i deale r or
a qualif ied se rvice stat ion.
If you choose to change your o il yourself, please
note the fo llowing important information :
A WARNING
To reduce the ris k of persona l inju ry if yo u
must c han ge the engine oil in your ve hicle
yo urself:
- Wea r eye p rotection .
192
-
-To reduce t he risk of burns from hot engine
oil, let the engine coo l down to the touch.
- W hen removing the o il drain p lug with your
fingers, stay as far away as possib le. Always
keep your forearm parallel to the ground to
he lp prevent hot oi l from running down your
arm .
- Dra in the oil into a c ontainer designed for
this purpose, one la rge 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 chi ld ren .
- Continuous contact w it h used eng ine oi l is
ha rmf ul to your skin. Always protect you r
skin by washi ng oil off tho roughly wi th soap
a nd wate r.
(D Note
Never mix oil additives with your engine oil.
These additives can damage your e ngine and
adverse ly affect your Audi Limited New Vehi­
cle Warranty.
@ For the sake of the environment
- Before changi ng your oil, first make su re
you know where you ca n prope rly dispose of
the used oil.
- Always dispose of used eng ine oil properly.
Do not d ump it on garden so il, wooded
areas, in to op en st reams o r down sewage
drai ns.
- Recycle used engi ne oil by taking it to a used
eng ine oi l collect ion fac ility in yo ur area, o r
c ontact a service station.
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 genera lly re­
q u ires little attention.
The cooli ng sys tem has been filled at the f actory
wi th a permanent coolan t which does not need to
be changed. The coolant consists of a mixtu re of
jll,,

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specially conditioned water and the manufactur ­
er's glycol-basedcoolant additive Gl3 antifreeze
with anticorrosion add itives (50% for USA mod­
els ; 60% for Canadian models) . This mixture both
assures the necessary frost protection and pro­
tects metal components in the engine's cooling
system from corrosion and scaling . It also raises
the boiling point of the coolant .
Do not reduce the concentration of the coolant in
the summer by adding pla in water .
The propor ­
ti on of coolant additive mu st be at least 50 %
but n ot more than 60 °/o
to maintain antifreeze
p rotec tion and cooling efficiency . If the coolan t
frost protection is too low, the coolant cou ld
freeze and damage the vehicle heating and en­
gine cooling system.
F or year-round driving, antifreeze is added at the
factory for temperatures dow n to:
- - 31 °F (-35 °C) USA
- - 40 °F ( - 40 °C) Canada .
If you m ust add coolant, use a m ixture of water
and coolant additive. Mixing the coolant additive
with distilled water is recommended.
A WARNING
Before you check anything in the engine com­
partment, always read and heed all WARN­
INGS
~ A in Working in the engine compart­
ment on page 187.
(D Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in your
vehicle is suffic ient to meet the climate con­
dit ions . This is especially important if you
l ive in a region where the winter is ex treme-
l y co ld. I f necessary, increase the proport ion
of coo lant add itive to 60%.
- When adding coolant addit ive to your cool ­
ing system, remember:
- We recommend using only coolant addi­
tive Gl2 ++ or Gl3 for your vehicle. This
coola nt add itive is ava ilable at authorized
Audi dea lers. Other types of ant ifreeze can
significant ly reduce corrosion protection .
Check in g and Fillin g
The resulting corrosion can cause a loss o f
coolant and serious engine damage.
- Do not add any type of rad iator leak sealant
to your vehicle's engine coolant . Adding ra­
diator repair fluid may adverse ly affect the
function and performance of your cooling
system and could result in damage not cov­
ered by your New Vehicle Limited Warranty .
Checking the engine coolant level and
adding coolant
Be very careful when adding engine coolant.
Fig . 1 64 Engine compartment: Cover on the coo lant ex­
pans io n tank
Fig . 1 65 Engin e compa rtment: mark in gs in t he coo lant ex­
pan sion tank
Before you check anything in the engine compart­
ment,
a lwa ys read and heed all WARNINGS
~ A in Working in the engine compartment on
page 187.
The "MIN" und "MAX" markings are found on the
bi-level d isc in the interior of the coo lant expan ­
s ion tank~
fig. 165 .
.,. Park yo ur vehicle on a level su rface.
.,. Turn off the ignition.
.,. Let the engine cool down.
193

Checking and Filling
"' Place a thick rag over th e coolant expansion
tank and
carefully turn the cap counter-clock­
wise
¢ ,& .
"'Read the engine coolant level inside the coolan t
expansion tank
¢ fig . 164, ¢page 189,
fig. 16 1.
With a cold engine , the coolant level
should be between the ' 'MIN" and "MAX " mark­
ings
¢ fig . 165 -arrows- . When the engine is
warm, the level may be slightly above the
"MAX" marking.
"'Add coolant mixed in the correct ratio, if neces­
sary ¢
page 192 . Coolant may be a maximum
of 1 mm above the MAX marking.
"' Twist the cap on again
tightly .
The location of the coolant expansion tank can be
seen in the engine compartment illustration
¢ page 189.
To obtain an accurate reading , the engine must
be switched off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System¢
page 17 will
blink until you add coolant and the level has been
restored to normal. Even though there is an elec­
tric coolant level sensor, we still recommend you
check the coolant level from time to time.
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cooling
system should be inspected immediately by your
authorized Audi dealer. It is not enough merely
to add coolant.
In a
sealed system, losses can occur only if the
boiling point of the coolant is exceeded as a re­
sult of overheating.
Adding coolant
Replacement engine coolant must conform to ex­
act specifications ¢
page 192, Coolant.
We recommend using only coolant additive Gl2+
+ , G l3
or in an emergency Gl2+ . Do not use a
different additive . In an emergency use plain wa­
ter until you can get the correct additive and can
194
restore the correct ratio. This should be done as
soon as possible.
If you have lost a considerable amount of cool­
ant, then you should add cold antifreeze and cold
water only when the engine is cold.
Always use
new engine coolant when refilling.
Do not fill coolant above the "MAX" mark. Excess
coolant will be forced out through the pressure
relief valve in the cap when the engine becomes
hot.
,&_ WARNING
- The cooling system is under pressure and
can get very hot. Reduce the risk of scalding
from hot coolant by following these steps.
- Turn off the engine and allow it to cool
down .
- Protect your face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag .
- Turn the cap slowly and very carefully in a
counter-clockwise direction while applying
light, downward pressure on the top of
the cap .
- To avoid being burned, do not spill anti ­
freeze or coolant on the exhaust system or
hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­
ant can catch fire.
- Antifreeze is poisonous. Always store anti­
freeze in its original container and well out
of the reach of children.
- If you drain the coolant, it must be caught
and safely stored in a proper container
clearly marked "poison".
(D Note
- Do not add any type of radiator leak sealant
to your vehicle's engine coolant. Adding ra­
diator repair fluid may adversely affect the
function and performance of your cooling
system and could result in damage not cov­
ered by your New Vehicle Limited Warranty.
- Coolant pollutes the environment and could
-
cause an engine fire. Excess coolant will be .,.

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Fu se pa nel @ (black )
No. Consumer
1 Dynamic steering
2 Electron ic Stabilization Control (module)
A/C system pressure sensor, electrome-
chanical parking brake, HomeLink, auto-
3 mat
ic dimming interior rear view mirror,
air quality/outside air sensor, Electron ic
Stabilization Control (button)
s Sound actuator
6 Headlight range control/headl
ight (corner-
ing light)
7 Headlight (cornering light)
Control modu les (electromechanical park-
8 ing brake, shock absorber, q uattro sport),
DCDC converte r
9 Adaptive
cruise control
10 Shift gate/clutch sensor
11 Side assist
1 2 Headlight range cont ro l, parking system
13 Airbag
14 Rear
wiper (a llroad)
15 Auxiliary fuse (instrument panel)
16 Auxiliary
fuse termina l 15 (engine area)
Fuse p anel @ (brown )
No. C onsumer
2 Brake light sensor
3 Fuel pump
4 Clutch sensor
5
Left seat heating with/without seat venti-
lation
6 Electronic Stabilization Control (electric)
7 Ho rn
8
Front left door (window regulator, central
locking, mirror, switch, lighting)
9 Windshield wiper motor
10 Electronic Stabilization Control (valves) Fu
ses a nd bulb s
No. Consumer
Two-door mode ls: rear left window regula-
11 tor; Four-door
models: rear left door (win-
dow regulator, central locking, switch,
light ing)
12 Rain and l
ight sensor
Fuse panel © (r e d )
No . Con sumer
3 Lumbar support
4 Dynamic steering
5 Inter
ior l ight ing (Cabriolet)
6 Windshie
ld washer system, headlight
washer system
7 Vehicle electrica l system control module 1
8 Vehicle electr ica l system control module 1
9 Left rear
window regulator motor (Ca brio-
let)/su nroof
10 Vehicle electr ica l system co ntrol module 1
11 Right rear
window regulator (Cabriolet)/
sun shade motor
12 Anti-theft
alarm warning system
Right cockpit fuse assignment
Fig. 185 Right cockpit: fu se panel with plastic cl ip
225

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Fuse panel© (brown)
No. Consumer
1 Luggage compartment lid control module
(allroad)
2 12-volt socket, cigarette lighter
3 DCDC converter path 1
4 DCDC converter path 2, sound amplifie r,
rad io
6 Right upper cabin heating (Cabriolet)
7 Electromechanical parking brake
9
Right front door (window regulator, cen-
tral locking, mirror, switch, lighting)
10 Left upper cabin
heating (Cabriolet)
Two-door models: rear right w indow regu-
11 lator; Four-door models: rear
right door
(window regulator, central locking, switch,
lighting)
12 Cell phone prep
Fuse
panel © (black)
No. Consumer
1 Right front seat heating
4 MMI
5 Radio
6 Rear view camera
7 Rear window heater (allroad)
8 Rear
Seat Entertainment
Bulbs
Replacing bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for
you .
It is becoming increasingly more and more diffi­
cult to replace vehicle light bulbs since in many
cases , other parts of the car must first be re­
moved before you are ab le to get to the bulb .
This applies especially to the light bulbs in the
front of you r ca r which you can only reach
through the engine compartment .
Sheet metal and bulb holders can have sharp
edges that can cause ser ious cuts, parts must be
Fuses and bulbs
correct ly taken apart and then properly put back
together to help prevent breakage of parts and
long term damage from water that can enter
housings that have not been properly resealed.
For your safety, we recommend that you have
your authorized Audi dea ler replace any bulbs for
you, since your dealer has the proper tools, the
correct bulbs and the expertise.
Gas discharge lamp s (Xenon lights)*:
Due to the high electr ical voltage, have the bulbs
replaced by a qualified technician . Head lights
with Xenon light are identified by the high volt­
age sticker.
A WARNING
Changing Xenon lamps without the necessary
equipment can cause serious personal injury.
- Bulbs are pressurized and can explode when
being changed . Potential risk of injury!
- On vehicles equipped with gas discharge
bu lbs (Xenon light) * life -threatening injuries
can result from improper handling of the
high -vo ltage portions of such lamps!
-On ly your authorized Audi dealer or quali­
fied workshop shou ld change the bulbs in
gas discharge lamps. There are parts with
sharp edges on the openings and on the
bulb holders that can cause serious cuts . If
you are uncertain about what to do, have
the wor k performed by an autho rized Audi
dealer or qualified workshop. Serious per­
sonal injury may result from improperly per­
formed work .
(D Tips
-If you st ill prefer to replace the light bulbs
yourself, be aware that the eng ine compart­
ment is a hazardous area to work
inq page 187 q &..
-It is best to ask your authorized Audi dealer
whenever you want to change a bulb.
227

Index
Exterior mirrors
Adju sting . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Dimming ... .. .. ... ... .... ... .. .. .... 47
Heating .. .. .. ............... .. .. .... 46
F
Fan
Radiator 195
F asteni ng
B ooste r seats . . . . . . . . . . . . . . . . . . . . . . . 1 58
Convertible child safety sea ts . . . . . . . . . . 15 6
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 155
Fl oor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Fog lights (rear) . . . . . . . . . . . . . . . . . . . . . . . 43
F olding the rear seats . . . . . . . . . . . . . . . . . . . 63
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . 1 16
For the sake of the environment Environmentally-friendly driving . . . . . . . 179
Gasoline fumes and the environmen t . . . . 185
Lett ing the engine warm up ........ . 71, 73
Refueli ng . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Saving fue l by early upshift ing . . . . . . . . . . 11
Front airbags Descr ipt io n . . . . . . . . . . . . . . . . . . . . . . . . . 132
H ow they wo rk . . . . . . . . . . . . . . . . . . . . . . 136
F ronta l collisions and the laws of physics . . 12 1
F ront passenge r's door eme rgency locking . . 35
Front seats Adjusti ng . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Ch ild restra ints in the front seat . . . . . . . . 129
F ue l
Addit ives . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Blended gasoline . . . . . . . . . . . . . . . . . . . . 183
Consumpt ion . . . . . . . . . . . . . . . . . . . . . . . . 24
Fue l gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Gasoline additives . . . . . . . . . . . . . . . . . . . 184
L ow fuel level symbo l . . . . . . . . . . . . . . . . . 20
Oc tane rating . . . . . . . . . . . . . . . . . . . . . . . 183
Re commenda tion . . . . . . . . . . . . . . . . . . . . 183
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . 185
R eserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2
Saving fue l . . . . . . . . . . . . . . . . . . . . . . . . . 179
Tank capacity . . . . . . . . . . . . . . . . . . . . . . . 234
Tank system . . . . . . . . . . . . . . . . . . . . . . . . . 20
Unlock ing the fue l filler flap by hand 186
F ue l filler flap
Unlocking the fue l filler flap by han d 186
244
Fuses
Assignment ..... .. .. .. .. ... 224, 225, 226
Rep lacing . . . . . . . . . . . . . . . . . . . . . . . . . . 224
G
Garage doo r opener (Homelink) . . . . . . . . . . 40
Ga rment hooks . . . . . . . . . . . . . . . . . . . . . . . . 60
Gas discharge lamps . . . . . . . . . . . . . . . . . . . 227
G au ges
Engine coolant temperature . . . . . . . . . . . . 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 11
Ge neral i llustration
Instruments and controls . . . . . . . . . . . . . . . 8
Generator Warning/ind icator lights . . . . . . . . . . . . . . . 16
G love compartment . . . . . . . . . . . . . . . . . . . . 60
Valet parking . . . . . . . . . . . . . . . . . . . . . . . . 39
G PS cont rolled clock . . . . . . . . . . . . . . . . . . . . 12
Gross Vehicle Weight Rating (GVWR) . . . . . 233
H
Head lights
Cleaning system . . . . . . . . . . . . . . . . . . . . . . 49
Defective . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Head light range control . . . . . . . . . . . . . . . 21
Left hand dr ive, r ight hand dr ive . . . . . . . . . 45
T ra ve l mode . . . . . . . . . . . . . . . . . . . . . . . . . 45
Head light washer reservoir . . . . . . . . . . . . . 200
Head restraints . . . . . . . . . . . . . . . . . . . . . . . 114
Adjusting . . . . . . . . . . . . . . . . . . . . . . . 56, 114
Removing/installing . . . . . . . . . . . . . . . . . . 56
He ated
exter io r mir ro rs . . . . . . . . . . . . . . . . . . . . . . 46
r ear window . . . . . . . . . . . . . . . . . . . . . . . . . 69
seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
windshield washer spray nozz les . . . . . . . . 49
He ating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Heavy clothi ng and safety be lts . . . . . . . . . . 122
Hig h beam . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Hig h voltage warning label . . . . . . . . . . . . . 233
Hill descent contro l . . . . . . . . . . . . . . . . . . . . 84
Homelink (ga rage doo r opener) . . . . . . . . . . 40
Hood Open ing . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Re lease lever . . . . . . . . . . . . . . . . . . . . . . . 18 7