2015 AUDI RS7 SPORTBACK radiator

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Instrument s and warnin g/indic ator ligh ts 15
immediately at low speed to the nearest
authorized Audi dealer or qualified repair
facility and have the brake system in­
spected .
- Always keep in m ind that after several
brake applicat ions, you will need greater
pressure on the brake pedal to stop your
vehicle . Do not rely on stra ined brakes to
respond w ith maximum stopp ing power
in critical situations. You must allow for
increased bra king distances . The extra
distance used up by fading brakes could
lead to an accident .
PARK!<®> Electromechanical parking brake
The warning/indicator light monitors the
electromechanical parking brake.
If the indicator light . (USA models)/ .
(Canada models) tu rns on, the par king b rake
was set .
• (USA mod els ) ~ (C anada mode ls) Cau­
tion: V ehicle pa rk e d too stee p
If the indicator lig ht blinks and the message
appears, there is not enough braking power to
keep the vehicle from rolling. The brakes have
overheated . The vehicle could ro ll away even
on a small in cl ine.
Pr ess brake pedal to rel eas e parking brake
To release the parking brake, press the brake
pedal and press the button ~ or start driving
with s tart ing ass ist at the same t ime
c::> page 78.
Please release parking brake
To release the parking brake man ually, press
the brake pedal and press the button~ at the
same time. The parking brake on ly re leases
automatically if the driver's safety be lt is fas­
tened.
Ill Parkin g brake!
If the Ill indica tor l igh t turns on and this
message appea rs, there is a p arking brake
mal function . Drive to your authorized Audi dealer or qualified workshop immediately to
have the malfunction corrected
.
_L Engine cooling system malfunction
A malfunction in the engine cooling system
must be repaired as soon as possible .
• Swit ch off en gin e and check coolant l evel
If the indicato r light turns on and the mes­
sage appea rs, the coolant temperature is too
high or the coolant leve l is too low.
.,. Pull off the road .
.,. Stop the vehicle .
.,. Turn off the engine .
.,. Check coolant level
c::> page 217 .
.,. Add coo lant if necessary c::> page 218.
.,. Con tinue dr iv ing on ly afte r the engine cool ­
ant warning/indicator ligh t goes out .
.,. Contact yo ur authorized Audi dealer for as-
sistance if necessary.
If the engine coo lant level is correct, t hen the
radiator fan may be the ca use of the malfunc­
tion .
• Coola nt temperature t oo high! Plea se let
engine run with vehicle stationary
If the indicator light turns on and the mes­
sage appea rs, let the engi ne run at idle for a
f ew m in utes to cool down.
A WARNING
- If you r vehicle should brea k down for
mechanical or other reasons, park at a
safe distance from moving traffic, turn
off the eng ine and turn on the hazard
warn ing lights
c::> page 45, Emergency
flasher.
-
- Never open the hood if you see or hear
steam or coolant escaping from the en­
gine compartment -you risk being scald­
ed . Wait unt il you can no longer see o r
hea r steam o r coolant escap ing .
- The engine compartment of any vehicle is a dangerous area . Before you perform
any wo rk in the engine compartment,
~

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Starting th e engin e
"'Pre ss the brake peda l r::!> _&..
"'Press the I START ENGINE STOP I button
r::!>fig. 83. T he engine will start .
If the engine should not sta rt immediately ,
the sta rting process is automatically stopped
after a short time. Repeat starting procedure .
A WARNING
-Never allow the engine to run in confined
spaces -danger of asphyxiation .
- Never t urn off the engine unti l the vehi­
cle has come to a complete stop.
- The brake booster and power steering
only work when the engine is running . If
the engine is off, you have to use more
force when steering or braking. Because
you cannot steer and brake as you usua l­
ly would, this could lead to crashes and
ser ious injur ies .
(D Note
-Avoid high engine rpm, full throttle and
heavy engine loads unti l the engine has
reached operating temperature -other ­
wise yo u risk eng ine damage.
- The eng ine cannot be started by pushing
or tow ing the veh icle.
(D Tips
- After a cold engine is started, there may
be a brief period of increased noise be­
ca use oil pressure mus t fi rst bu ild up in
the hyd raulic valve adjusters . This is nor­
mal and not a ca use for concern.
- If you leave the vehicle with the ignit ion
switched on, the ignition will switch off
after a certai n pe riod of time. P lease
note tha t electr ica l equipment s uch as
exterior lights wi ll switch off as well
when that happens.
Stopping the engine
~ "' Bring your vehicle to a complet e stop. ,....,
~ "' Move the selector lever to the P or N po si-
,...., tion.
"' ,....,
On th e ro ad 75
"'Press the I START ENGINE ST OP I button
r::!>poge 74, fig . 83.
Ste ering lock
T he s teering locks when yo u tur n the engine
off using t he
I S TA RT ENGINE STO P! bu tton
and open the d river 's doo r. The locked steer­
ing helps prevent vehicle theft.
Emergency off
If necessary, the engine can be switched off
with the selector lever in the R or D/S posi­
t ion. The engine stops if you press the
I S TAR T ENG IN E ST OP I button at speeds below
6 mph (10 km/ h) .
A WARNING
- Never turn off the engine until the vehi­
cle has come to a complete stop.
- The brake booster and power stee ring
only work when the eng ine is r unning . If
the engine is off, you have to use more
force when steering or braking. Because
you cannot steer and brake as you usual ­
ly would, this co uld lead to crashes and
serio us inju ries .
- For safety reasons , you should a lways
pa rk your vehicle w it h the selector lever
in P. Otherwise, the vehicle could inad­
ver ten tly roll away.
- After the eng ine has been switched off,
the radiator fa n can cont in ue to run for
up to 10 minu tes -even with the ignition
sw itche d off . It can also sw itch on again
after some time i f th e coolant tempera­
ture rises as the result of a heat b uildup
or if the engine is hot and the engine
compartment is additionally heated by
the sun's rays.
(U) Note
Do not stop the engine immediately after
hard o r extended driving. Keep the engine
running for approximate ly two minutes to
prevent excess ive heat bu ild-up .

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Parking systems
General information
Applies to vehicles: with parking system plus/rear view
camera/peripheral cameras
Depending on your vehicle's equipment, vari­
ous parking aids w ill help you when parking
and maneuvering.
The
pa rking syste m plus assists you when
parking by audibly and visually indicating ob­
jects detected
in front of and behind the vehi ­
cle
¢ page 110.
The rea r view c amera shows the area behind
the vehicle in the Infotainment disp lay . This
display assists you when you are cross or par ­
allel parking
¢ page 111 . In addit ion, you are
assisted by the functions from the parking
system plus¢
page 110.
The periph era l ca mera s assist you with park ­
i ng and maneuvering. You are aided by var ious
cameras depending on the vehicle equipment l eve l¢
page 114. In addition, you are assist­
e d by the func tion s from th e parking sy stem
plus ¢page 110.
A WARNING
- Always look for traff ic and check the area
around your vehicle by looking at it di­
rectly as well. The parking system cannot
replace the driver's attent ion. The dr iver
is always responsible for safety during
park ing and for all other maneuvers .
- Please note that some surfaces, such as
clothing, are not detected by the system.
- Sensors and cameras have blind spots in
wh ich peop le and objects cannot be de­
tected. Be especially cautious of children and animals.
- T he sensors can be displaced by impacts
or damage to the radiator grille, bumper ,
wheel housing and the underbody. The parking systems may become impaired
as a result. Have your authorized Audi
dealer or qualified workshop check their
function.
Par king system s 109
-Make sure the sensors are not covered by
stickers, deposits or any other obstruc­
tions as it may impair the sensor func­
tion . For information on cleaning, refer
to ¢
page 201 .
(D Note
- Some objects are not detected by the
system under certain c ircumstances :
- Objects such as ba rrie r chains, trailer
draw bars, vertical po les or fences
- Objects above the sensors such as wall
extensions
- Objects w ith specific surfaces or st ruc­
tures such as chain link fences or pow­
der snow.
- If you continue driving closer to a low-ly­
ing object, it may disappea r from the
sensor range. Note that you w ill no lon­
ger be warned about this obstacle.
@ Tips
- T he system may provide a warning even
tho ugh there are no obstacles in the cov­
erage area in some situations, such as:
- certain road surfaces or for long grass.
- externa l ultrasonic sources e.g. from
clean ing vehicles.
- heavy rain, snow or thick vehicle ex­
ha ust.
- We recommend that you practice park­
ing in a traff ic-free location or park ing
lot to become familiar w ith the system.
When doing this, there should be good light and weather cond itions .
- You can change the vo lume and pitch of
the s ignals as well as the display
¢ page 119 .
-What appears in the infotainment dis­
play is somewhat time-delayed .

114 Park in g s yste m s
c> A in General information on page 111,
r=.>(D in General information on page 112.
The blue area represents an extens ion of the
vehicle's outline by approximately 16 ft
(5 m) to the rear . The long side of the blue
area should be on the curb. The entire blue
area must fit into the parking space .
~ With the vehicle stopped, turn the steer ing
wheel to the r ight as far as it w ill go.
~ Back in to the par king spa ce until the b lue
curve
r=.> fig. 133 touches the curb c> A in
General information on page 111,
¢ (Din
General information on page 112 . Stop the
vehicle.
~ With the veh icle stopped, turn the steer ing
wheel to the left as far as it will go.
~ Continue to back into the parking space un ­
t il the vehicle is parked pa ralle l to the curb
r=.> A in General information on page 111,
r::> Q) in General information on page 112 .
@ marks the rear bumper . Stop the ve hicle,
at the latest, when the red orientation line
@ borders an object. Keep an eye on the
front of your vehicle whi le doing this .
Parking next to obstacles
If there is a n obsta cle (s uch as a wall) next to
the park ing space, position the ve hicle so
the re is more space o n that s ide. Position the
long side of the b lue surface so that there is
sufficient space from the obstacle . The sur­
face m ust not be touch ing . You will also need
to start tur ning the steering wheel much ear­
lier . The blue curve
r::> fig. 133 must not touch
the obstacle and should have sufficient room .
(D Note
Remember to maintain sufficient clear­
ance from the curb to avoid damaging the
wheel rims .
(!) Tips
The left or right orientation lines and sur­
faces will be displayed, depe nding on the
turn signal be ing used .
Peripheral cameras
Introduction
Applies to vehicles: wi th parking system pl us with per ip h­
eral c ameras
In add ition to parking system p lus
r=.> page 110, this parking system conta ins pe­
ripheral cameras . Depending on the vehicle
equipment, you are assisted by vario us views
s u ch as per iphera l view , corner views at the
fron t and rear of the veh icle, and views d irect­
ly in front of or behind the vehicle .
General information
Applies to v ehicl es: wi th parking sys te m plus with pe riph­
eral ca meras
F ig . 1 34 Location of per iphera l came ras
Depending on the vehicle equipment, the pe­
ripheral cameras are found in the radiator
grille, in the luggage compartment lid and on
both exterior m irrors *
c> fig. 134. Make sure
that the lenses a re not covered by depos its or
any othe r obstructions as it may impa ir the
system. For informat ion on clean ing, refe r to
r::>page 201.
In the peripheral mode, black corners are
shown in the vehicle silhouette . Objects in
these areas a re ou ts ide of the came ra's field
of view and are not detected.
T he accuracy of the orientation lines and the
blue surfaces is reduced if the adaptive ai r
suspension* is faulty, if the vehicle is lifted or
i f th e
D ynamic mode is activa ted c> page 96. ..,.

212 Check ing and filling
- 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 persona l 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 repa ir
with the engine running:
- Fi rst, fully apply the parking bra ke,
move se lec to r lever to P (Pa rk) .
- Always use extreme caution to preven t
clot hing, jewe lry, or long h air from ge t­
ting caught in the radiator fan, V -belts
or other moving parts, or from contact­ ing hot parts. Tie back hair before
start ing, and do not wear cloth ing that
will hang or droop into the eng ine.
- Min imize exposure to emission and
chemica l hazards¢ ,&..
A WARNING
California Propos ition 65 Warning:
- Engine exhaust, some of its constituents,
and certa in veh icle components conta in
or emit chemicals known to the State of
Califor nia to cause cancer and b irth de­
fec ts a nd reproduct ive ha rm. In addition,
certain fluids conta ined in vehicles and
certa in prod ucts of co mponent wear co n­
ta in o r emi t chemicals known to the
State o f Ca lifornia to cause can cer and
birth defects or ot her reproductive harm. -
Battery posts, terminals and re lated ac­
cessories conta in lead and lead com­
pounds, chemicals known to the State of
California to cause cance r and reproduc­
tive harms. Wash hands after handling .
(D Note
When adding flu ids, always make sure that
they are poured into the proper conta iner
or f iller opening, otherwise serious dam­
age to vehicle systems w ill 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 ve hicle flu­
i ds, have yo ur vehicle inspected by a n au­
thori zed Audi dea le r.
Closing the engine hood
.,. Pull the hood down un til the pressure from
t he struts is reduced.
.,. Let the hood drop down and latch in p lace .
Do not try to push it shut; it may fail to en­
gage ¢&_ .
A WARNING
-
A hood that is not completely latched
could fly up and b lock your view while dr iv­
ing.
- When you close the engine hood, check it
to make sure the safety catch has p roper­
ly engaged. The hood sho uld be flush
with the surrou nding vehicle body pa rts.
- If you notice while driv ing t hat the hood
is not s ecured prope rly, stop at onc e and
close it.

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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
qu ires little attention .
The cooling system has been filled at the fac­
tory with a permanent coolant which does not need to be changed. The coolant consists of a
mixture of specially conditioned water and the
manufacturer's glycol-based coolant addi-
tive G13 antifreeze with anticorros ion addi­
tives (50% for USA models; 60% for Canadian models) . This mixture both assures the neces­
sary frost protection and protects metal com­
ponents in the engine's cooling system from
corrosion and scaling.
It also raises the boil ­
ing point of the coolant.
Do not reduce the concentration of the coo l­
ant in the summer by adding plain water .
The
proportion of coolant additive must be at
least 50% but not more than 60%
to main­
tain antifree ze protection and cooling efficien­
cy. If the coolant frost protection is too low,
the coolant could freeze and damage the vehi ­
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
- -40 ° F ( - 40 °C) Canada.
I f you must add coo lant, use a mixture of wa­
ter and coolant addit ive. Mixing the coolant
additive with distilled water is recommended.
& WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS ~.&.
in Working in the engine
compartment on page 211.
(D Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in
Checkin g and fillin g 217
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 extremely co ld. If necessary, in­
crease the proportion of coolant additive
to 60% .
- When adding coolant additive to your
cooling system, remember :
- We recommend using only coolant ad­
ditive G12++ or G13 (check the label)
for your vehicle . This coolant additive is
avai lable at authorized Audi dealers .
Other types of antifreeze can signifi­
cantly reduce corrosion protection. The resulting corrosion can cause a loss of
coolant and serious engine damage.
- Do not add any type of radiator leak seal­
ant to your vehicle's engine coolant.
Adding radiator repair fluid may adverse­
ly affect the function and performance of
your cooling system and could result in
damage not covered by your New Veh icle
Limited Warranty.
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance.
Fig. 191 En gin e compar tment: cover on the coo lant
expansio n tan k
Before you check anyth ing in the eng ine com­
partment,
always read and heed all WARN­
INGS¢.&, in Working in the engine compart­
ment on page 211 .
"'Park your vehicle on a level surface .
"' Sw itch off the ignition.
"' Read the engine coolant level from the cool­
ant expansion tank ¢
fig. 191, ¢ page 213, Ill>-

218 Check ing and filling
fig . 188. With a cold engine, the coo lant
l evel should be between the "min" and
"max" markings . When the engine is warm ,
the leve l may be slightly above the "max"
mark ing .
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration
9 page 213.
To obtain an accurate reading, the engine
must be switched off .
The expans ion tank in you r vehicle is equipped
with an e lectric coolant level sensor.
When the coolant level is too low, the warning l ight in the Auto-Check System
9 page 15 w ill
illum inate unti l you add coolant and the level
has been restored to normal. Even though
there is an electric coolant level senso r, we
still recommend you check the coolant leve l
from time to time .
Coolant loss
Coolant loss may indicate a le ak in the cooling
system . In the event of coolant loss, the cool ­
ing system should be inspected immediately
by your authorized Audi dealer. It is not
enough merely to add coolant.
I n a
s ealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheating.
A WARNING
The cooling system is under pressure and can get very hot. Reduce the risk of scald­
ing from hot coolant by followi ng these
steps .
- Turn off the engine and allow it to coo l
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 carefu lly in
a counter-clockwise direction w hile ap­
plying light, downward pressure on the
top of the cap . -
To avoid being burned, do not spi ll anti­
freeze or coolant on the exha ust system
or hot engine parts. Under certain cond i­
tions, the ethylene glycol in engine coo l­
a nt can catch fire.
(D Note
Do not add any type of radiator leak sea l­
ant to your veh icle's engine coolant. Add­
i ng radiator repair fluid may adverse ly af­
fect the funct ion and pe rformance of you r
cooling system and could result in damage
not cove red by your New Veh icle Limited
War ran ty.
Adding coolant
Be very careful when adding engine coolant.
Befo re you check anyth ing in the eng ine com­
partment,
always read and he ed all WARN­
INGS ¢ ..&. in Working in the engine compart­
ment on page
211.
" Requirement: There must be a residua l
amo unt of coolant in the expansion ta nk
¢ (D .
"Tu rn off the engi ne.
" Le t the eng ine cool down.
" Place a thick rag over the coolant expansion
t ank
9 page 217, fig. 191 and ca refully
twist the cap counter-clockwise ¢&,, .
" Add coolant m ixed in the correct rat io
¢
page 217, Coolant up to the MAX mark­
ing.
" Make sure that the flu id leve l remains sta -
ble . Add more coo la nt if necessary .
" Twist the cap o n again
tightly .
Replacement engine coo lant must conform to
exact spec ificat ions ¢
page 217, Coolant.
We recommend using only coolant add i-
tive
Gl2++, Gl3 or in an emergency Gl2 +. Do
not use a d ifferent addit ive . In an emergency
use p la in water until you can get the correct
additive and can resto re the co rrect rat io . This
shou ld be done as soon as possib le. .,..

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If you have lost a consi derable amount of
coolant, then you should add co ld antifreeze
and cold water only when the engine is co ld .
Always use
new engine coolant when refi lling.
D o not fi ll coolant above the "MAX " mark . Ex­
cess coolant will be forced out th rough the
p ress ure rel ief valve in the cap when the en­
g ine becomes hot .
A WARNING ,_________
-The cooling system is under press ure and
can get very hot . Reduce the risk of
sca ld ing from hot coo lant by following
these steps.
- Tur n
off the eng ine and a llow itto cool
down.
- Protect your face, hands and arms from
escap ing f lu id a nd steam by cover ing
the cap wi th a la rge, thick rag.
- Turn the cap slow ly and very ca refully
in a cou nte r-clockw ise d irect ion while
a pply ing ligh t, downw ard p ress ure on
the to p of the cap.
- To avo id being burned, do no t sp ill an­
tifreeze or coolan t on t he exhaust sys­
tem or ho t engine parts . U nder certa in
conditions, the ethylene glyco l in en­
gine coolant can catc h fire .
- Antifreeze is poisonous . Always store an ­
tifreeze in its original container and we ll
o ut o f the reach of children.
- If you drain the coolant , it must be
caught and safely stored in a proper con­
tainer clearly marked "poison".
@ Note
- Do not add coolant if the expansion tank
i s empty . Ai r could enter the cooling sys­
tem and damage the engine. If this is
the case, do not continue driving. Seek professional assistance.
- Coolant po llutes the env ironment and
could cause a n engine fire. Excess coo l­
ant wi ll be forced out through the pres­
sure re lief valve in the cap when the en ­
gine becomes hot.
Checkin g and fillin g 219
-If, in an emergency, on ly wate r can be
added, the correct ratio between water
and antifreeze ¢
page 217 must be re­
stored as soon as possible.
@) For the sake of the environment
Drained coolant sho uld not be reused. A l­
ways d ispose of used coolant while observ­
i ng a ll environmental regulations.
, Radiator fan
The radiator fan switches on automatically by
itself .
An auxiliary electric radiato r fan switches on
and
off depending on coolant temperature
and othe r vehicle ope rat ing cond it ions.
After yo u switch the eng ine o ff, the aux iliary
f an can continue running for up to 10 m inutes
- even with the ignition off. It can even switch
on aga in later by itself¢ .&. , if
- the temperatu re of the engine coo lant rises
du e to the h eat build -up from th e engin e in
the engine compa rtment, or
- the engine compa rtment heats up because
the vehicle is parked in intense sunlig ht.
A WARNING ~
- To reduce the risk of persona l inju ry nev-
er touch the radiator fan .
- The a uxiliary electric fan is tempe rat ure
contro lled and can switch on suddenly
even when the engine is not running.
- The a uxiliary radiator fan sw itches on a u­
tomatically when the engine coo lant
reaches a certai n temperature and will
continue to ru n until the coo lant temper­
ature drops. •
•