2015 AUDI RS7 SPORTBACK coolant

"' N
a:: I.J "". rl I.O
"' rl
"' rl
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. .,..

M N
0:: <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
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. •
•

M N
0:: <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
~ Press the cap back onto the filler neck after
filling the container .
You can find the reservoir
c ap acity in the tab le
in
c::> page 280.
C lean water should be used when filling up. If
possible, use soft water to prevent scal ing on
washer jets. A lways add a glass cleane r solu ­
tion (with frost protection in the winter) .
(D Note
Do not mix engine coolant antifreeze or
any other add itives to fi ll up the wind­
shie ld washer reservoir.
Checkin g and fillin g 225
•
•

Tires and wheels 241
not exceeded. Vehicle load in- rear for total seating capacity •
eludes everybody and every- of 4. Each seating position has • '
thing in and on the vehicle. a safety belt¢ page 130, Safe-
These load limits are technical-ty belts.
ly referred to as the vehicle's
The fact that there is an upper
Gross Vehicle Weight Rating limit to your vehicle's Gross Ve-
("GVWR"). hicle Weight Rating means that
The "GVWR" includes the the total weight of whatever is
weight of the basic vehicle, all being carried in the vehicle is
factory installed accessories, a limited. The more passengers
full tank of fuel, oil, coolant in the vehicle or passengers and other fluids plus maximum who are heavier than the stand-
load . The maximum load in- ard weights assumed mean
eludes the number of passen- that less weight can be carried
gers that the vehicle is intend-as luggage.
ed to carry ("seating capacity") The tire pressure label on your
with an assumed weight of
Audi also lists the maximum
150 lbs (68 kg) for each pas- combined weight of all of the
senger at a designated seating occupants and luggage or other
position and the total weight of cargo that the vehicle can carry.
any luggage in the vehicle. For the location of the label
The
Gross Axle Weight Rating ¢ page 233, fig. 195.
("GAWR") is the maximum load
_& WARNING
that can be applied at each of ~ -
Overloading a vehicle can
the vehicle's two axles.
cause loss of vehicle control,
The Gross Vehicle Weight Rat- a crash or other accident, se-
ing and the Gross Axle Weight rious personal injury, and
Rating are listed on the safety even death.
compliance sticker label locat-
-Carrying more weight than
ed on the driver's side B-pillar. your vehicle was designed
M N
Your Audi has 4 seating posi- to carry will prevent the ve-0:: <.J 'SI:
tions, 2 in the front and 2 in the hicle from handling properly ~ .... \!) 1.1'1
.... 1.1'1 ....

"' N
a:: I.J ""'. rl I.O
"' rl
"' rl
Technical data
Vehicle identification
F ig. 228 Veh ide Identificat ion Number (VlN) plate: lo·
cat ion on driver's side dash pane l
XXXXX XX · X -XXXX XXX
~ fAllftlli. -llllll · NR. ~ W!ru -IIOO -NO.
xx
XXXX XXXX XX X XXXXXXXX
XXX XXX
IYP /TYPE
XX XXXXX XX XX X X XX
XXX KW XXX
®i ~W.::·f :l~~ XXXX XXX XXX
©+ ::rw= xxxx I xxxx XXX I xx
M. · AUSSt I IJ'IIDIIS
~--
EOA 7D5 4UB 6XM SSG SR W
2EH JOZ
1L B lAS 1B A
3FC SMU 7Xl
FDA 9G3 OG7 OYH OJF
TL6 3KA 8EH UlA X98 027
l XW 803 908 824 D2D
7T6 CV7 7KO 4X3 2K2
3L4 4KC 3YO 413 502
1SA 7GB 01A 4GO
XX. X XX X XX X XXXX
Fig. 229
The vehicle identification label- in side the
l u ggage compartme nt
Vehicle Identification Number (VlN)
The Veh icle Identification Number is located
in different p laces :
- under the w indshield on the driver's side
¢fig. 228.
- in the MMI: Select: Function button ICAR ! >
(Car)* systems > Servicing & checks > VIN
number .
-on the vehicle identification label.
Techni cal data 2 79
Vehicle identification label
The vehicle identification label is located in
the luggage compartment in the spare wheel
well.
T he label¢
fig. 229 shows the following vehi­
cle data:
(D Vehicle Identificat ion Number (VIN)
@ Vehicle type, engine output, transmission
® Engine and transmission code
© Paint number and interior
® Optional equipment numbers
The information of the veh icle identification
label can also be found in your Warranty
&
Maintenance booklet .
Safety compliance sticker
The safety compliance sticker is your assur­
ance that your new veh icle complies with all
applicable Federal Motor Vehicle Safety
Standards which were in effect at the time the
vehicle was manufactured. You can find this
sticker on the door jamb on the driver's side.
It shows the month and year of production
and t he vehicle identification number of your
vehicle (perforation) as well as the Gross Vehi­
cle Weight Rating (GVWR) and the Gross Axle
Weight Rating (GAWR) .
High voltage warning label
The high voltage warning label is located in
the engine compartment next to the engine
hood release. The spark ignition system com­
plies with the Canadian standard ICES-002 .
Weights
Gross Vehicle Weight Rating
The Gross Vehicle Weight Rating (GVWR), and
the Gross Axle Weight Rating (GAWR) for
front and rear are listed on a sticker on the
door jamb on the driver's s ide.
The Gross Vehicle Weight Rating includes the
weight of the basic vehicle plus full fuel tank,
oil and coolant, plus maximum load, which in ­
cludes passenger we ight (150 lbs/68 kg per
II>--

28 4 Con sum er Inf ormation
in P (Park position) and the park brake is
applied.
@) For the sake of the environment
- Changing the engine settings wi ll ad ­
versely affect emission levels . This is det­
rimental to the environment and increas­
es fue l consumption .
- Always observe env ironmental regula­
tions when disposing of old engine oil,
used brake fluid, dirty engine coolant,
spent batteries or worn out tires.
- Undeployed airbag modules and preten­
sioners might be classif ied as Perchlo­
rate Material -spec ial handling may ap­
ply, see www .dtsc .ca .gov/hazardous ­
waste/perch lorate . When the veh icle o r
parts of the restraint system including
airbag modules safety belts wit h preten­
s ioners are scrapped, all appl icable laws
and regulations must be observed. Your
a utho rized Audi dea ler is familiar with
these requirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be­
fore purchasing accessories .
Your vehicle incorporates the latest safety de ­
sig n features ensuring a high standard of ac­
tive and passive safety .
This safety could be compromised by non-ap­ proved changes to the veh icle. For this reason ,
if parts have to be replaced, p lease observe
the following points when installing addition­
a l accessories:
Approved Audi accessor ies and genuine Audi
parts a re ava ilable from authorized Aud i deal­
e rs. These dea
lers a lso have the necessary facili­
ties, tools and trained specialists to install the
parts and accessories proper ly .
A WARNING
=
Using the wrong spare parts or using non-
approved accessories can cause damage to
the veh icle and ser ious perso na l injury .
- Use on ly accessories express ly approved
by Audi and genuine Audi spare parts
- These parts and accessories have been
specia lly designed to be used on your ve­
h icle.
- Never install accessor ies such as tele­
phone crad les or beverage ho lders on a ir­
bag covers or within the airbag deploy ­
ment zones . Do ing so wi ll increase the
ris k of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compa rtment, always read and heed a ll
WARNINGS
c:::> page 211 .
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used o r if repair wo rk is not
performed ac cord ing to spe cified meth­
ods, this c an resu lt in seve re damage to
yo ur vehicle's eng ine and body (such as
co rrosion) and adversely affect yo ur vehi­
cle's warranty.
- If emergency repairs must be performe d
elsewhere , have the vehicle examined by
an authorized Audi dealer as soon as
possible.
- The manufacturer cannot be held liable
for damage wh ich occ urs due to failure
to comply with these stipu lations.
Technical Modifications
Our guidelines must be complied with when
t echnical modifica tions are made.
Always consult an authorized Audi dealer be-
fore start ing work on any modifications. ll>-

286 Index
A
A/C (automatic climate control) .. .... .. 70
Accessories .. ... .. ..... ......... .. . 284
Active lane assist . . . . . . . . . . . . . . . . . . . . 90
Activating and deactivating . .. .. .. .. . . 91
Cleaning the camera area ...... .... . 202
Description . .................. ..... 90
Instrument cluster indicator light . . . . . 91
Mes sages .. ................ ... .... 91
Notes on instrument cluster display . . . . 91
Setting the steering wheel vibrat ion . . . . 92
Adaptive air suspension/sport .. ... ..... 96
Adaptive cruise control ....... ... .... .. 81
Cleaning the sensor ........ ... .. .. . 202
Messages . . . . . . . . . . . . . . . . . . . . . . . . . 88
Request for driver intervention . . . . . . . . 86
Stop-and-go traffic . . . . . . . . . . . . . . . . . 85
Adaptive Light (defective) ....... .... .. 21
Adding Engine coolant .................... 218
Engine oil .... ........... .. .. .... . 215
Windshield washer fluid ....... .... . 224
Addit ives
Engine oil .... .... ...... ... .. .. ... 215
Adjusting Air distribution (automatic climate con-
trol) ...... ................... ... .. 71
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 53
I nstrument illumination ............. 47
Steer ing column e lectrically .. .. .. .. . . 73
Steering column manually . .. .. .. .. . . 73
Temp eratur e (automatic climate contro l) 71
A irbag system . . . . . . . . . . . . . . . . . 139 , 160
Advanced Airbag System ............ 143
Advanced Airbag System components . 147
Care . .. .. .. ............. .. .. .. .. . 155
Children .................. .. .... . 167
Child restraints .............. ..... . 167
Components (front airbags) . ... .. .. . 147
Danger of fitting a child seat on the front
passenger seat .................... 141
Disposal . .. ............. .. .. .. .. . 155
Front airbags . . . . . . . . . . . . . . . . 143, 145
H ow do the front airbags work? . . . . . . 149
H ow many airbags does my vehicle
have? ... .. .. ... ........ .. .. .. .. . 147 How
the Advanced Airbag System com-
ponents work together ............ . 149
Impo rtant sa fety instructions on the
knee airbag system ................ 158
Important things to know ........... 139
Knee airbags ..... ................ . 156
Monitoring .. .. .. .. ..... ........ .. 151
PASSENGER AIR BAG OFF light ....... 152
Repairs .......................... 155
Safety instructions ... .......... .. .. 154
Side airbags ..... ................. 158
Sid e curtain airbags ................ 161
Warning/indicator lights ............. 18
Warning/Indicator lights ........... 151
When must the system be inspected? 151
Aircraft Transpo rting your vehicle
Alcantara 277
Cleaning .. .. .. .. ... .......... .. .. 204
All-wheel drive .. .. ............. .. .. 193
Winter tires . .. .. ...... .... ... .... 252
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Ambience lighting . .......... ...... .. 47
Anti-free ze
refer to Engine coolant ........... .. 217
Anti- lock b raking system ............ . 187
Warning/indicator lights ............. 18
Anti-slip regulation ... .......... .. .. 187
Warning /indicator lights ........ .. .. . 18
Anti-theft systems
Electronic immobilizer ............. .. 32
Ashtray ... ..... .. .. .............. .. 59
Audi braking guard
refer to brak ing guard .......... .... . 81
Audi drive select
refer to drive select ............... .. 96
Audi Service Repair Manuals and Litera-
ture ... .... .... .. ............. .... 282
AUTO automatic climate control . . . . . . . . . . . . 71
Automatic headlights ............... 44
Auto Lock . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Automatic belt retractor ............. 133
Automatic climate control
Air vents .. .... .. ................ .. 71
Automatic recirculation ............ .. 72
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 70