2016 AUDI RS7 SPORTBACK radiator

could burn yourself. Let the engine cool off
first until you can no longer see or hear
steam or coolant escaping .
0 Note
- Mounting additional lights or accessories in
front of the air inlets reduces the cooling ef­
fect of the radiator. At h igh outside temper­
atures or high engine load, the engine could
overheat .
- The front spoiler has been designed to prop­
erly distribute the cooling air when the veh i­
cle is moving . If the spoiler is damaged, this
could red uce the cooling effect and the en­
gine could then overheat. Ask your author­
iz ed Audi dealer for assistance.
Tachometer
The tachometer displays the engine speed in rev­
olutions per minute (RPM).
You should shift to the next lowest gear when
the speed is below 1500 RPM . The beginning of
the red zone in the tachometer indicates the
maximum permissib le engine speed for all gea rs
once the engine has been broke n in. Before
reaching the red zone, you should shift into the
next higher gear, choose the Dor 5 selector lever
position , or remove your foot from the accelera­
tor pedal.
(D Note
The needle in the tachometer@Q
page 10,
fig. 3
may only be in the red area of the gauge
for a short time or there is a risk of engine
damage. The beginning of the red range in
the gauge depends on the engine operating
tern perature.
@ For the sake of the environment
Upshifting early helps you to save fuel and re­
duce operating noise.
{!) Tips
The engine speed is limited when the engine
is cold - the full engine output is not availa­
ble. When the engine is at operating temper-
Instruments and indicator lights
ature, the red area in the tachometer moves
to a higher RPM range.
Fuel level
The fuel gauge only works when the ignition is
on. If the fuel level drops below 2.6 gallons (10
liters), the bottom LED turns red and the indica­
tor light
tD turns on Q page 20. The bottom
LED blinks red when the fuel level is very low .
The possible range based on the current fuel lev­
el is shown in tab@¢
page 22, fig. 4.
For the tank capacity in your vehicle, refer to the
Technical Data¢
page 260.
(D Note
Never drive until the tank is comp letely emp­
ty. The irregu lar supply of fuel that resu lts
from that can cause the engine to misfire. Un­
combusted fuel w ill then enter the exhaust
system. This can cause overheating and dam­
age to the catalytic converter .
Indicator lights
Description
The indicator lights in the instr ument cluster
blink or turn on. They indicate functions or mal­
funct ions ¢& .
Messages may appear with some indicator lights .
A warning signal will sound at the same time.
The indicator lights and messages in the center of the displays may be replaced by other disp lays.
To show them again, select the tab for indicator
lights and messages using the multifunction
stee ring wheel ¢
page 22. If there are several
malfunctions, you can display them one at a time
using the thumbwheel.
Some indicato rs lights in the d isplay can turn on
in several colors .
_&. WARNING
- Failure to heed warning lights and other im­
portant vehicle information may result in
serious personal injury or vehicle damage.
11

~ To switch the ignition off, press the button
again. The needle in the tachometer moves into
the
OFF position .
Equipment that uses a lot of electricity is switch­
ed off temporar ily when you start the engine .
I f the engine does not start immediately, the
starting p rocedure is automat ica lly stopped a fter
a short time . Repeat the starting p rocedure.
A WARNING
- Never allow the engine to run in confined
spaces, because this increases the risk of as­
phyxiation.
- Never turn off the engine before the vehicle
has come to a comp lete stop.
- The brake booster and power steering only
work when the engine is running . If the en­
gine is off, you have to use more force when
brak ing or steering . Because you cannot
brake and steer as you usually would, this
could lead to acc idents and serious injuries .
(D Note
Avoid high engine speed, full throttle, and
heavy engine load as long as the engine has
not reached operating temperature yet. You
could damage the engine .
@ For the sake of the environment
Do not let the engine run while parked to
warm up. Begin driving immediately . This re­
duces unnecessary emissions.
@ Tips
- Some noise after starting the engine is nor­
mal and is no cause for concern .
- If you leave the vehicle with the ignition
switched on, the ignition will switch off af­
ter a certain amount of time . Make sure that
electr ical equ ipment such as the exter ior
li ghts are switched off.
Stopping the engine
~ Bring your vehicle to a complete stop.
~ Move the se lector lever to the P or N pos ition.
-
D riving
~ Press the !S T ART ENGINE STOP ! button
¢page 72, fig. 82 .
Steering lock
The steering locks when you turn the engine off
using the
!S TART ENGINE STOPI button and
open the driver's door. The locked steering helps
prevent vehicle theft.
Emergency off
If necessary, the eng ine can be switched off w ith
the selecto r lever in the R or D/S posit io n . The
engine stops if you press and hold the
!STAR T ENGINE ST OP ! button at speeds below
6 mph (10 km/h) and press the brake pedal.
A WARNING
-Never turn off the engine until the vehicle
has come to a complete stop.
- The brake booster and power steering only
work when the engine is running.
If the en­
gine is off, you have to use more force when
steering or braking. Because you cannot
steer and brake as you usually would, this
could lead to crashes and serious injuries.
- For safety reasons, you should always park
your veh icle w ith the selector lever in P.
Otherw ise, the vehicle could inadvertently
ro ll away.
- After the eng ine has been switched off, the
radiator fan can continue to run for up to 10
minutes -even with the ignition switched
off. It can also switch on again after some
time if the coolant temperature rises as the
result of a heat buildup or if the engine is
hot and the engine compartment is addi ­
tionally heated by the sun's rays.
(D Note
Do not stop the engine immediately after
hard or extended driving. Keep the engine
running for approximately two minutes to
prevent excessive heat build-up.
Messages
Turn off ignition before leaving car
.
73

Parking systems
General information
Applies to: vehicl es with parking system plus/rear view cam­
era/peripheral cameras
Depending on your vehicle's equipment, various
parking aids will help you when parking and ma­
neuvering.
The
parking system plus assists you when park­
ing by audibly and visually indicating objects de­
tected
in front of and behind the vehicle
¢page 108.
The rear view camera shows the area behind the
vehicle in the Infotainment display. This display
assists you when you are cross or parallel parking
¢ page 109. In addition, you are assisted by the
functions from the parking system plus
¢ page 108.
The peripheral cameras assist you with parking
and maneuvering. You are aided by various cam­
e ras depending on the vehicle equipment leve l
¢page 112. In addition, you are assisted by the
functions from the parking system plus
¢page 108.
A WARNING
-Always look for traffic and check the area
around your vehicle by looking at it directly
as well. The parking system cannot replace
the driver's attention. The driver is always
responsible for safety during parking 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
which people and objects cannot be detect­ ed. Be especially cautious of children and
animals.
- The sensors can be displaced by impacts or
damage to the radiator grille, bumper,
wheel housing and the underbody. The park­
ing systems may become impaired as a re­
sult. Have your authorized Audi dealer or
qualified workshop check their function.
- Make sure the sensors are not covered by
stickers, deposits or any other obstructions
Parking systems
as it may impair the sensor function. For in­
formation on cleaning, refer to
¢page 193.
(D Note
-Some objects are not detected by the sys­
tem under certain circumstances:
- Objects such as barrier chains, trailer draw
bars, vertical poles or fences
- Objects above the sensors such as wall ex­ tensions
- Objects with specific surfaces or struc­
tures such as chain link fences or powder
snow.
- If you continue driving closer to a low-lying
object, it may disappear from the sensor
range . Note that you will no longer be
warned about this obstacle.
(D Tips
- The system may provide a warning even
though there are no obstacles in the cover­ age area in some situations, such as:
- certain road surfaces or for long grass.
- external ultrasonic sources e.g. from cleaning vehicles.
- heavy rain, snow or thick vehicle exhaust.
- We recommend that you practice parking in
a traffic-free location or parking lot to be­
come familiar with the system. When doing
this, there should be good light and weath­
er conditions.
- You can change the volume and pitch of the
signals as well as the display
¢page 116.
- What appears in the infotainment display is
somewhat time-delayed.
107

Checking and Filling Hood
Releasing the engine hood
The engine hood is released from inside the vehi­
cle .
Fig. 1 81 Dr ive r foo twell: re lease leve r
Fig. 1 82 Roc ke r sw itc h und er the hood
M ake sure the w iper arms are not raised u p from
the w indshield. Otherwise the pa int co uld be
damaged .
• Wi th the d river's door open, p ull th e leve r un­
der the instrumen t panel i n the direction of the
ar row
r::;, fig. 181 .
• Raise the hood sl ight ly c:;, A -
• Press the rocker switc h under the hood upward
c;, fig . 182. This releases the catch.
• Open the hood.
_& WARNING
Hot engine coo lant can bur n you .
- To reduce the risk of be ing burned, never
open the hood if yo u se e or hear steam or
coolant escaping from the eng ine compart ­
me nt. W ait unt il no steam o r co olant ca n be
Checking and Filling
seen or hea rd before carefully opening the
hood .
Working in the engine compartment
Be especially careful whenever you work in the
engine compartment.
Whenever you must perf orm any work in the
engine compartment , for example checking and
filling different fluids , the re is a risk of injur y,
burn s and accidents. To prevent personal injury
always observe the following WARNINGS. The
eng ine compartment of any veh icle is a hazard ­
ous area
c:;, A .
_& WARNING
To he lp avoid injury, before you check any­
th ing under the hoo d:
-T urn off the engine .
- Sw itch off the ignit ion.
- Apply the parking brake.
- Move selector lever to P (Pa rk).
- Always let the en gine cool down. Ho t com-
ponents wi ll burn skin on con tact .
-
-To reduce the ris k of b eing bur ned, never
open the hood if you see or hear steam o r
coo lant escaping from the engine compart­
ment. Wa it until no steam or coolant can
be
seen or hea rd before carefully opening the
hood.
- Keep children away from the engine com­
partment .
- Never sp ill fluids on hot engine compo ­
nents. They can cause a f ire.
- Never touch the radiator fan . The auxiliary
electric fan is temperature contro lled and
can switch on suddenly.
- Never open the coo lant reservoir cap when
the engine is st ill warm. The coolant system
is pressuri zed and hot coolant could sp ray
out.
- Protect your face, hands and arm from
steam or hot engine coolant by plac ing a
thick rag over the cap when yo u open the
coolant reservoir .
203

Checking and Filling
-Do not remove the engine cover under any
circumstances . This increases the risk of
burns.
- If work on the fuel system or the electrical
system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or open
flames . Fluids in the engine compartment
could start a fire.
- Keep an approved fire extinguisher imme­
diately available .
- To avoid electrical shock and personal injury
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 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 contacting
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 chemi­
cal 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 Cali­
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
204
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm .
- Battery posts, terminals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms .
Wash hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container or
filler opening, otherwise serious damage 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 fluids, have
your vehicle inspected by an authorized Audi
dealer.
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 engage
¢ _& .
A WARNING
A hood that is not completely latched could
fly up and block your view while driving .
- When you close the engine hood, check it to
make sure the safety catch has properly en ­
gaged . The hood should be flush with the
surrounding vehicle body parts.
- If you notice while driving that the hood is
not secured properly, stop at once and close it .
-

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
q ui res little atte ntion .
The cooling system has been filled at the factory
with a permanent coolant which does not need to
be changed . The coolant consists of a mixture of
specially condit ioned water and the ma nufactur ­
er's glycol-based coolant additive G13 an tifreeze
with ant icor rosion additives
(50% for USA mod­
e ls;
60% fo r Canadia n models). This m ix tu re
bo th ass ures the necessa ry fros t prote ction and
protects metal componen ts in the engi ne's coo l­
ing system from corrosion and scaling .
It also
raises the boiling point of the coolant.
D o not red uce the con cen trat ion of the coolant in
the summer by adding p lain wa ter.
The propor­
tion of coolant additive mu st be at least 50 %
but not more than 60%
to maintain antifreeze
protection and cooling efficiency. If the coolant
frost protection is too low, the coolant could
freeze and damage the vehicle heating and en­
g ine cooling system .
For year-round driving, antifreeze is added at the
factory for temperatures down to:
- -3 1 °F ( -3 5 °C) USA
- -4 0 °F ( - 40 °C) Canada.
If yo u m ust add coo lant, use a m ixt ure of water
and coolant addit ive. Mixing the cool ant additive
with d istilled w ater is recommended .
_& WARNING
Before you che ck anythi ng in t he eng ine com­
pa rtment, a lways read and heed a ll WARN­
INGS
~ .& in Working in the engine compart­
ment on page 203 .
(D Note
-Before winter se ts in, have the coo lant
checked to see if the coolant additive in your
vehicle is sufficient to meet the c limate con -
Checking and Filling
ditions. This is especia lly important if you
live in a region whe re the winter is extreme­
ly cold. If necessary, increase the propo rtion
of coolant addit ive to
60%.
- Whe n adding coolant additive to your cool­
ing system, remember :
- We recommend us ing o nly coola nt addi­
tive G 12++ or G13 (c hec k the label) for
y o ur vehi cle. Thi s coo lant ad ditive is av ail­
abl e at a uth orized Au di dea le rs. Ot her
types o f ant ifreeze ca n sign ifican tly re ­
d uce corrosion protection. The resu lting
cor ros ion can cause a loss of coolant and
se rious engine damage.
- 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 Veh icle Limited War ra nty .
Checking the engine coolant level
The engine coolant level can be checked with a
quick glance .
Fig. 186 E ngine compar tmen t: cover on t he coo lant expan­
s io n t ank
Befo re you check anything in the engine compart­
me nt,
always read and heed all WARNINGS
~ .&. in Working in the engine compartment on
page 203.
" Park your veh icle on a leve l s u rface.
" Sw itch off the ig nit ion .
.. Read the eng ine coolant leve l from the coo lant
expansion tan k
r=;,fig. 186, r=;,page 205,
fig . 183.
W ith a cold eng ine, the coolant level ..,.
209

Checking and Filling
should be between the "min " and "max" mark­
ings. When the engine is warm, the level may
be slightly above the "max" marking.
The location of the coolant expansion tank can be
seen in the engine compartment illustration
<::> page 205.
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 15 will il­
luminate until you add coolant and the level has
been restored to normal. Even though there is an
electric 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.
A 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 itto cool down.
- Protect your face, hands and arms from es­ caping 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 conditions,
the ethylene glycol in engine coolant can
catch fire .
210
(D Note
Do not add any type of radiator leak sealant
to your vehicle's engine coolant. Adding radia­
tor repair fluid may adversely affect the func­
tion and performance of your cooling system
and could result in damage not covered by
your New Vehicle Limited Warranty .
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine compart­
ment,
always read and heed all WARNINGS
<::>.& in Working in the engine compartment on
page 203 .
.. Requirement: There must be a residual amount
of coolant in the expansion tank
i:::>Q) .
.. Turn off the engine .
.. Let the engine cool down .
.. Place a thick rag over the coolant expansion
tank <::>
page 209, fig. 186 and carefully twist
the cap counter-clockwise
c::> &,.
.. Add coolant mixed in the correct ratio
<::> page 209, Coolant up to the MAX marking.
.. Make sure that the fluid level remains stable.
Add more coolant if necessary.
.. Twist the cap on again
tightly.
Replacement engine coolant must conform to ex­
act specifications <::>
page 209, Coolant.
We recommend using only coolant additive G12+
+, G13 or in an emergency G12+ . Do
not use a
different additive. In an emergency use plain wa­
ter until you can get the correct additive and can
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 ant i­
freeze or coolant on the exhaust system or
hot engine parts. Under certa in 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 coolant if the expansion tank is
empty. Air could enter the cooling system
and damage the eng ine. If this is the case,
do not continue driving. Seek professional
assistance.
- Coolant pollutes the environment and could
cause an engine fire. Excess coolant will be
forced out through the pressure relief valve
i n the cap when the engine becomes hot .
- If, in an emergency, only water can be add­ ed, the correct ratio between water and an­
tifreeze
¢ page 209 must be restored as
soon as possible.
@ For the sake of the environment
Drained coolant should not be reused. Always
dispose of used coolant while observing all
environmental regulat ions.
-
Checking and Filling
Radiator fan
The radiator fan switches on automatically by it­
self .
An auxiliary electric radiator fan switches on and
off depending on coolant temperature and other
vehicle operating conditions.
After you switch the engine off, the auxiliary fan
can continue running for up to 10 minutes -even
with the ignition off. It can even switch on again later by itself ¢&. , if
- the temperature of the engine coolant rises due
to the heat build-up from the engine in the en­ gine compartment, or
- the engine compartment heats up because the
vehicle is parked in intense sunlight.
A WARNING
--
- To reduce the risk of personal injury never
touch the radiator fan .
- The auxiliary electric fan is temperature
controlled and can switch on suddenly even
when the engine is not running .
- The auxiliary radiator fan switches on auto­
matically when the engine coolant reaches a
certa in temperature and will continue to run
until the coolant temperature drops.
Brake fluid
Checking brake fluid level
Fig. 187 En g in e compar tment: cover on the b rake fluid
rese rvoir
Before you check anything in the engine compart­
ment,
always read and heed all WARNINGS
¢ & in Working in the engine compartment on
page 203 . .,.
211