2016 AUDI RS7 SPORTBACK radiator cap

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

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
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

Index
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Starting with jumper cables . . . . . . . . . . . 253
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Engine compartment . . . . . . . . . . . . . . . . . . 205
Closing the hood . . . . . . . . . . . . . . . . . . . . 204
Opening the hood . . . . . . . . . . . . . . . . . . . 203
Safety instructions . . . . . . . . . . . . . . . . . . . 203
Working in the engine compartment . . . . 203
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . 209
Adding coolant .. ............. .... .. . 210
Checking the engine coolant level. . . . . . . 209
Expansion tank . . . . . . . . . . . . . . . . . . . . . . 209
Radiator fan .... ................ .... 211
Temperature gauge . . . . . . . . . . . . . . . . . . . 10
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Adding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Checking oil level . . . . . . . . . . . . . . . . . . . . 207
Consumption . . . . . . . . . . . . . . . . . . . . . . . 207
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 16
Oil consumption . . . . . . . . . . . . . . . . . . . . . 206
Pressure malfunction . . . . . . . . . . . . . . . . . 16
Sensor defective . . . . . . . . . . . . . . . . . . . . . . 20
Specification and viscosity . . . . . . . . . . . . . 205
Temperature ind icator . . . . . . . . . . . . . . . . . 26
Eng ine sound . . . . . . . . . . . . . . . . . . . . . . . . . 95
Engine speed limitation (indicator light) 20
Engine warm-up request
I ndicator l ight . . . . . . . . . . . . . . . . . . . . . . .
20
Environment
Catalytic converter . . . . . . . . . . . . . . . . . . .
189
Disposing of your vehicle battery . . . . . . . 215
Driving at high speeds . . . . . . . . . . . . . . . . 191
Fuel. .... .. .. .. ... .......... .. .. .. . 200
Leaks under your vehicle . . . . . . . . . . . . . . 203
Letting the vehicle stand and warm up. .. 191
Proper disposal of drained brake fluid . . . 212
Proper disposal of drained engine coolant 210
Proper disposal of drained engine oil 207, 208
Recycling used engine oil . . . . . . . . . . . . . 207
Unleaded fuel . . . . . . . . . . . . . . . . . . . . . . . 198
What should I do with an old battery? . . . 215
ESC
Automatic post-co llision braking system .
181
Event Data Recorder (EDR) . . . . . . . . . . . . . 179
E . k xpans1on tan . . . . . . . . . . . . . . . . . . . . . . . 209
270
Exterior lighting . . . . . . . . . . . . . . . . . . . . . . . 43
Exterior mirrors
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
D' .
1mming ............................
48
Heating... .. .. .. .. .. ............. ... 47
Exterior temperature display . . . . . . . . . . . . .
22
F
Fastening
Booster seats . . . . . . . . . . . . . . . . . . . . . . .
168
Convertible child safety seats . . . . . . . . . . 166
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 165
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . 123
For the sake of the environment
Environmentally-friendly driving . . . . . . .
190
Gasoline fumes and the environment . . . . 200
Reducing eng ine noise by early upsh ifting . 10
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Saving fuel by early upshifting . . . . . . . . . . 10
w . th .
arming up e engine . . . . . . . . . . . . . . . . 72
Front airbags
D . t· escnp 10n . . . . . . . . . . . . . . . . . . . . . . . . . 139
How they work . . . . . . . . . . . . . . . . . . . . . . 144
Frontal collisions and the laws of physics . . 128
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Child restraints in the front seat . . . . . . . . 136
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . .
198
Blended gasoline . . . . . . . . . . . . . . . . . . . . 198
Current consumpt ion . . . . . . . . . . . . . . . . . . 23
Fuel filler neck . . . . . . . . . . . . . . . . . . 199, 200
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . 10, 11
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Gasoline additives . . . . . . . . . . . . . . . . . . . 199
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 20
Octane rating . . . . . . . . . . . . . . . . . . . . . . . 198
Recommendation. . . . . . . . . . . . . . . . . . . . 198
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Saving fuel . . . . . . . . . . . . . . . . . . . . . . . . . 190
T k . an capacity . . . . . . . . . . . . . . . . . . . . . . . 260
Fueling
Fuel filler door emergency release . . . . . .
201
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 11