coolant reservoir AUDI RS5 COUPE 2015 Owners Manual

Checking and Filling
compartment. Wait until no steam or cool­
ant can be seen or heard before carefully
opening the hood.
- Keep children away from the engine com­
partment.
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxiliary
electric fan is temperature controlled and
can switch on suddenly.
- Never open the coolant reservoir cap when
the engine is still warm . The coolant system
is pressurized and hot coolant could spray
out .
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the coolant reservoir .
- 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 of automatic transmission
to "P" (Park) .
- Always use extreme caution to prevent
clothing, jewelry, or long hair from getting
188
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 .
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
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.
([) 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 .

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Check in g and Fillin g
Engine compartment
Engine compartment
These are the most important items that you can check.
Fig. 161 Typical layout for containers and eng ine oil filler cap
(D Coolant expansion tank (.J-) .. .. .
@ Jump start point(+) under a cover
@ Engine oil filler cap(~) .... .. .
@ Jump start point(-) with hex head
screw . ............... ...... .
® Brake fluid reservoir ((0) .. .. .. .
@ Windshield/headlight* washer con-
tainer
(Q) .................. .
&, WARNING
193
198,229
191
198,229 195
200
Before you check anything in the engine com­
pa rtment, always read and heed all WARN­
INGS
~ .&. in Working in the engine compart­
ment on page 187 .
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci­
fications.
T he service interval disp lay in the instr ument
cluster of your vehicle will inform you when it is
time for an oi l change. We recommend that you
have your oil changed by an authorized A udi Serv ­
ice Advisor .
If you have to top off the o il between o il changes,
use the Audi oil qua lity standard specified in the
table .
Audi oil quality standard
G as oline
VW S02 00 or
eng ine vw 504 00
1 8 9

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forced out through the pressure relief valve
in 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
q page 192 must be restored as
soon as possib le.
@ For the sake of the environment
Drained coolant should not be reused . Always
dispose of used coolant while observ ing a ll
environmental regulations.
Radiator fan
The radiator fan switches on automatically by it­
self.
The radiator fan is driven by the engine via the V­
be lt. The viscous clutch regulates the speed of
the fan according to the temperature of the cool­
ant.
An auxiliary e lectr ic radiator fan * switches on and
off depending on coo lant temperature and other
veh icle operating conditions.
Afte r you switch the engine off, the a uxiliary fan
can cont inue running for up to 10 minutes -even
with the ignition off. It can even switch on again
l ater by itself
Q .&. , if
- the temperature of the engine coolant rises due
to the heat bui ld-up from the eng ine in the en­
gine compartment, or
- the engine compartment heats up because the
vehicle is parked in intense sunlight.
_& WARNING
- To reduce the r isk of personal injury never
touch the radiator fan.
- The aux iliary e lectr ic fan is temperature con­
trolled and can switch on suddenly even
when the engine is not running.
- The auxiliary radiator fan switches on auto­
matically when the engine coo lant reaches a
certain temperature and will continue to run
until the coolant temperature drops.
Ch eck in g and Fillin g
Brake fluid
Checking brake fluid level
The broke fluid level con be checked with a quick
glance.
F ig . 1 66 Engine compartment: Cover on the brake fluid
r eservoir
Before you check anyth ing in the engine compart­
ment,
a lw ays r ead and h eed all WARNING S
q ,& in Working in the engine compartment on
page 187.
., Read the brake fluid level from the brake fluid
reservoir
q fig. 166, r:> page 189, fig. 161. The
brake fluid level must be between the "MIN"
and "MAX" markings.
The brake fluid reservo ir is located at the rear
part ition of the engine compartment on the left
s ide
q page 189.
The fluid level may drop slightly after some time
due to the automatic adjustment of the brake
pads. This is not cause for alarm.
If the brake fluid level falls
considerably below
the "MIN" mark, the brake warning/indicator
light (U.S. models:
1111 , Canad ian models: .
will come on
Q page 15 . Do not continue to oper­
ate the vehicl e. The complete brake system
shou ld be thoroughly chec ked by an autho rized
A udi dealer or qualified workshop and the cause
corrected. If the brake fluid level is too low, the
brake warning/indicator light will illuminate .
Contact an a uthorized Audi dea ler
immedi ately .
(0 Tips
The brake fl uid reservoir is located under­
neath the cover.
195

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

Index
Trunk lid
re fe r to R ea r lid . . . . . . . . . . . . . . . . . . . . . . 36
Turn signa ls . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Warn ing/ indicator lights . . . . . . . . . . . . . . . 22
u
Unfastening safety belts
Uniform tire quality grading
Unlocking 125
212
R ear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Unlock ing/locking
at the lock cylinder. . . . . . . . . . . . . . . . . . . . 35
by remote control . . . . . . . . . . . . . . . . . . . . 33
with the central locking switch . . . . . . . . . . 34
with the convenience key . . . . . . . . . . . . . . . 33
Use of jumper cables . . . . . . . . . . . . . . . . . . 229
V
Valet parking . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Vanity mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 48
Vehicle Care/clean ing . . . . . . . . . . . . . . . . . . . . . . . 181
Out of service . . . . . . . . . . . . . . . . . . . . . . . 182
Vehicle control modules . . . . . . . . . . . . . . . . 168
Vehicle electrica l system . . . . . . . . . . . . . . . . 16
Vehicle ident ificat ion labe l. . . . . . . . . . . . . . 233
Vehicle Identification Number (VIN) . . . . . . 233
Vehicle jack . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Vehicle key . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Vehicle shut-down . . . . . . . . . . . . . . . . . . . . 179
Vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . . 216
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
w
Warning/indicator lights . . . . . . . . . . . . . . . . 13
Airbag system . . . . . . . . . . . . . . . . . . . . . . . 19
Anti-lock braking system (ABS) . . . . . . . . . . 18
Brake system . . . . . . . . . . . . . . . . . . . . . . . . 15
Electromechanical parking brake . . . . . . . . 16
E lectronic power control . . . . . . . . . . . . . . . 20
E lectronic Stabilization Control (ESC) . . . . . 18
G ene rator . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Malfunction Indicator Lamp (MIL) . . . . . . . 20
Safety belt . . . . . . . . . . . . . . . . . . . . . . . . . . 16
250
Safety systems . . . . . . . . . . . . . . . . . . . . . . . 19
Turn signals . . . . . . . . . . . . . . . . . . . . . . . . . 22
Warranty coverages . . . . . . . . . . . . . . . . . . . 236
Washer reservoir . . . . . . . . . . . . . . . . . . . . . 200
Washing matte finish paint . . . . . . . . . . . . . 181
We ights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
What happens if you wear your safety belt too
loo se? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
What happens to unbelted occupants? . . . . 121
What impair s driving safety? ............ 112
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . 210
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . 218
T ires and vehicle load limits . . . . . . . . . . . 208
When must a safety belt be replaced? . . . . 122
When must the airbag system be inspected? .138
Window regulators. .. ... .......... .. .. . 37
Windows defrosting . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Windshie ld
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
defrosting . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Windshie ld washer fluid
Low level. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Windshield washer system . . . . . . . . . . . . . . 49
Windshie ld wipers
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Fo lding up . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 20
Replacing windshield wiper blades . . . . . . . 50
Switching on/off . . . . . . . . . . . . . . . . . . . . . 49
Washer reservoir . . . . . . . . . . . . . . . . . . . . 200
Winter driving Snow cha ins ...................... .. 211
Ti res ........ ... ................. .. 211
Winter operation Coolant system . . . . . . . . . . . . . . . . . . . . . 192
Defrosting windows . . . . . . . . . . . . . . . . . . . 69
Seat heating . . . . . . . . . . . . . . . . . . . . . . . . . 69
Tires ........ ... ..... ........... ... 174
Winter tires . .. .... .. .. ............. .. 211
Winter use Car washes 181
X
Xenon headlights .. .. .. ......... 43, 45, 227