2015 AUDI A5 CABRIOLET radiator cap

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.. Tak e the adapter for the emergency key out of
the glove compartment
r=:> fig. 89.
.. Push the emergency key r=:> fig. 90 fully into the
adapter. Make sure that the Audi rings are fac­
ing up.
.. Press the emergency key in the adapter down
until it latches audibly.
.. Insert the adapter with the emergency key for­
ward into the ignition switch . The engine can
now be started as usual.
Stopping the engine
Applies to vehicles: with ig ni tion lock
.. Bring the vehicle to a full stop.
.. Automatic transmission: Move the selector lev­
er to the P or N position.
.. Press on the ignition key. The engine is turned
off .
.. You can now remove the key.
Steering lock
The steering locks when you remove the ignition
k ey. The locked steering helps prevent vehicle
theft.
Emergency off
If it is necessary in unusual circumstances, the
engine can be switched off while the vehicle is
moving. The engine will be switched off if you
press on the key for an extended period.
A WARNING
- Never turn off the engine before the vehicle
has come to a complete stop. The full func­
tion of the brake booster and the power
steering is not guaranteed . You must use
more force to turn or brake if necessary. Be­
cause 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 vehicle with the selector lever in P. Oth­
erwise, the vehicle could inadvertently roll
away.
- The radiator fan can continue to run for up
to 10 minutes even after you have turned
off the engine and removed the ignition key.
Driving
The radiator fan can also turn on again if the
engine coolant heats up because of intense
sunlight or heat build-up in the engine com­
partment.
- Always take the key with you whenever you
leave your vehicle. Otherwise, the engine
could be started or electrical equipment
such as the power windows could be operat­
ed. This can lead to serious injury.
- Never leave children or persons requiring as­
sistance unattended in the vehicle. The
doors can be locked using the remote trans­
mitter, preventing people from escaping
from the veh icle on their own in the event of
an emergency. Depending on the time of
year, people inside the vehicle can be ex­
posed to very high or very low tempera­
tures.
(D Note
If the engine has been under heavy load for
an extended period, heat builds up in the en­
gine compartment after the engine is switch­
ed off -there is a risk of damaging the engine.
Allow the engine to run at idle for about two minutes before switching it off.
Convenience key
Starting the engine
Applies to vehicles: wi th convenience key
The !START E NGIN E STOPI button switches the
ignition on and starts the engine.
Fig. 91 Center console : START ENGINE STOP button
Starting the engine
.. Step on the brake pedal and move the selector
lever to P or N
¢ &_ . .,.
75

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
196
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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-To avoid being burned, do not spi ll anti­
freeze or coolant on the exhaust system or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­ ant can catch fire.
- Antifreeze is poisonous. Always store anti­
freeze in its original conta iner and well out
of the reach of ch ildren .
-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 profess ional
ass istance.
- Coolant pollutes the env ironment and could
cause an eng ine fire . Excess coolant will be
fo rced out through the pressure relief valve
i n the cap when the eng ine becomes hot.
- If, i n an emergency , only water can be add­
ed, the correct ratio between wa ter and an­
tifreeze
~ page 200 must be restored as
soon as possib le .
@) For the sake of the environment
Drained coolant should not be reused. Always
dispose o f used coolant while observ ing all
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 clu tch regulates the speed of
the fan ac cording to the temperature of the cool ­
ant.
An auxiliary e lectr ic rad iator fan* switches on and
off depend ing on coolant temperat ure and othe r
veh icle operati ng conditions.
Afte r you switch the engine off, the auxiliary fan
can continue runn ing for up to 10 minutes -even
Ch eck in g and Fillin g
with the ignition off . It can even switch on again
later by itself¢& , if
- the temperatu re of the engine coo lant rises due
to the heat build- up from the engine in the en­
gine compartment, or
- the engine compartment heats up because the
veh icle is parked in intense sun light .
A WARNING
-To reduce the risk of persona l injury never
touch the radiator fan .
- The auxiliary electric fan is temperature con­ trolled and can switch on suddenly even
when the engine is not running.
- The a uxiliary radiator fan sw itches on auto­
matica lly when the engine coolant reaches a
certain temperature and will continue to run
until the coolant temperature drops.
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a quick
glance .
Fig. 17 6 Engine compar tment : Cove r on the b rake fl uid
r e servoir
Before you check anyth ing in the engine compart ­
ment,
al way s read and h eed all WARNIN GS
¢ _.& in Working in the engine compartment on
page 195 .
.,. Read the brake fluid level from the b rake fluid
reservoir ¢
fig. 176, ¢ page 197, fig . 172 . The
brake fluid level must be between the
"MIN "
and "MAX " markings.
20 3

Index
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Adding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Addit ives . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Check oil level . . . . . . . . . . . . . . . . . . . . . . 199
Consumption . . . . . . . . . . . . . . . . . . . . . . . 199
Indicator light . . . . . . . . . . . . . . . . . . . . 17, 20
Oi l consumption . . . . . . . . . . . . . . . . . . . . . 198
Pressure malfunct ion . . . . . . . . . . . . . . . . . . 17
Sensor defective . . . . . . . . . . . . . . . . . . . . . . 20
Specification and viscosity . . . . . . . . . . . . . 197
Engine speed limitation . . . . . . . . . . . . . . . . . 20
Environment Catalytic converter . . . . . . . . . . . . . . . . . . . 178
Disposing of your vehicle battery . . . . . . . 207
Driving at high speeds . . . . . . . . . . . . . . . . 179
Fuel ..... .. .... ... ............... .. 192
Leaks under your vehicle . . . . . . . . . . . . . . 195
L ett ing the veh icle stand and warm up . . . 179
Proper disposal of drained brake fluid . . . 204
Prop er disposal of drained engine coolant 202
Prop er disposal of drained engine oil 199, 200
R ecycling used engine oil. . . . . . . . . . . . . . 199
Unleaded fuel . . . . . . . . . . . . . . . . . . . . . . . 190
What should I do with an old battery? . . . 207
EPC
refer to Electron ic power control . . . . . . . . 20
Ethyl alcohol (Fuel) . . . . . . . . . . . . . . . . . . . . 191
E vent Data Recorder ( EDR) . . . . . . . . . . . . . . 169
Expansion tank . . . . . . . . . . . . . . . . . . . . . . . 201
E xterior lighting . . . . . . . . . . . . . . . . . . . . . . . 50
Exterior mirrors Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
He ating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
F
Fan
Radiator 203
F astening
Booster seats . . . . . . . . . . . . . . . . . . . . . . . 160
Convertible child safety seats . . . . . . . . . . 158
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 157
flexible fuel .. .. ............... .. .. ... 191
Floor mats. .. ... ............... ... .. . 118
Fog lights/rear fog light(s) . . . . . . . . . . . . . . . 50
Folding the rear seats . . . . . . . . . . . . . . . . . . .
66
256
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Fo r the sake of the environment
Environm entally-fr iendly driving . . . . . . . 179
Gasoline fumes and the environment . . . . 192
Letting the engine warm up . . . . . . . . . 73 , 75
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Saving fu el by early upshifting . . . . . . . . . . 11
Front airbags Description . . . . . . . . . . . . . . . . . . . . . . . . . 136
How they work . . . . . . . . . . . . . . . . . . . . . . 140
Frontal coll is ions and the laws of physics . . 125
Front passenger's door emergency locking . . 34
Front seats Adjust ing . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Child restraints in the front seat . . . . . . . . 133
Upp er cabin heating . . . . . . . . . . . . . . . . . . . 71
Fuel Additives.. .. .... .. ............... .. 190
B lended gasoline . . . . . . . . . . . . . . . . . . . . 190
Consumpt ion . . . . . . . . . . . . . . . . . . . . . . . . 24
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Gasoline additives . . . . . . . . . . . . . . . . . . . 192
Low fuel level symbol . . . . . . . . . . . . . . . . . 20
Octane rating . . . . . . . . . . . . . . . . . . . . . . . 190
Recommendation . . . . . . . . . . . . . . . . . . . . 190
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Reserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Saving fuel . . . . . . . . . . . . . . . . . . . . . . . . . 179
T ank capac ity . . . . . . . . . . . . . . . . . . . . . . . 246
Tank system . . . . . . . . . . . . . . . . . . . . . . . . . 20
Unlock ing the fuel filler flap by hand . . . . 194
Fuel economy messages (efficiency program)
26
Fuel filler flap
Unlo cking the fuel filler flap by hand .... 194
Fuses Assignment ..... .. .. ....... 236,237,238
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . 236
G
Garage door opener (Homelink ) . . . . . . . . . . 38
Gas discharge lamps . . . . . . . . . . . . . . . . . . . 239
Gauges Engine coolant temperature . . . . . . . . . . . . 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 11
General illustration Instruments and controls . . . . . . . . . . . . . . . 8

Index
R
Radiator fan . . . . . . . . . . . . . . . . . . . . . . . . . 203
Rain/light sensor Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . 50
I ntermittent (windshield wipers) . . . . . . . . 55
Sensor defective . . . . . . . . . . . . . . . . . . . . . . 21
Raising the vehicle . . . . . . . . . . . . . . . . . . . . 244
Reading lights . . . . . . . . . . . . . . . . . . . . . . . . . 53
Rear fog lights . . . . . . . . . . . . . . . . . . . . . . . . 50
Rea r lid
Escape handle . . . . . . . . . . . . . . . . . . . . . . . 36
Opening and clos ing . . . . . . . . . . . . . . . . . . 35
Rear light Defective . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rear parking system . . . . . . . . . . . . . . . . . . . 106
Rear parking system with rearview camera . 10 7
Rear view camera
Pa rking mode 1 . . . . . . . . . . . . . . . . . . . . . 110
Pa rking mode 2 . . . . . . . . . . . . . . . . . . . . . 1 11
Rear view mirro r . . . . . . . . . . . . . . . . . . . . . . . 54
Rear window heating . . . . . . . . . . . . . . . . . . . 70
Recirculation mode (automatic climate con-
trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Release lever for hood . . . . . . . . . . . . . . . . . 1 95
Remote control
Garag e door opener (Hom elink) . . . . . . . . . 38
Remote control key . . . . . . . . . . . . . . . . . . . . . 30
Personalizing . . . . . . . . . . . . . . . . . . . . . . . . 30
un locking/locking . . . . . . . . . . . . . . . . . . . . 32
Remote rear lid release . . . . . . . . . . . . . . . . . 35
Repair manuals . . . . . . . . . . . . . . . . . . . . . . . 248
Repairs Airbag system . . . . . . . . . . . . . . . . . . . . . . 145
Replacement key . . . . . . . . . . . . . . . . . . . . . . 30
Replacing bulbs . . . . . . . . . . . . . . . . . . . . . . 239
Replacing w iper blades . . . . . . . . . . . . . . . . . 56
Reporting Sa fety De fects .... .... .. . 120, 121
Reset button . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Retractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Right hand drive . . . . . . . . . . . . . . . . . . . . . . . 52
Rims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Rollbar
refer to Active rollover protection system 121
260
s
SAFE 12
Safe driving habits . . . . . . . . . . . . . . . . . . . . 113
Safelock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Safety Airbag system . . . . . . . . . . . . . . . . . . . . . . 132
Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Correct seating position . . . . . . . . . . . . . . 114
Pedal area ... .. .. .. ...... ..... ...... 118
Safety be lt position . . . . . . . . . . . . . . . . . . . 129
Safety belts worn by pregnant women 129
Safety belt pretensioner
Service and disposal . . . . . . . . . . . . . . . . . 131
Safety bel ts . . . . . . . . . . . . . . . . . . . . . . 124, 127
Bel t posi tioner . . . . . . . . . . . . . . . . . . . . . . 127
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Danger to passengers who do not wear a
safety belt . . . . . . . . . . . . . . . . . . . . . . . . . 125
Fastening . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Improperly worn . . . . . . . . . . . . . . . . . . . . 130
Not worn . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Safety belt position . . . . . . . . . . . . . . . . . . 129
Saf ety instructions . . . . . . . . . . . . . . . . . . . 126
Securing child safety seats . . . . . . . . . . . . 161
Special conside rations for pregnant wom-
en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 29
Unfastening . . . . . . . . . . . . . . . . . . . . . . . . 130
Warning/indicator light . . . . . . . . . . . . . . . 124
Wa rning light . . . . . . . . . . . . . . . . . . . . . . . . 16
Worn properly . . . . . . . . . . . . . . . . . . . . . . 126
Safety belt warning light . . . . . . . . . . . . . . . 124
Safe ty compliance sticker . . . . . . . . . . . . . . 245
Safety equipment . . . . . . . . . . . . . . . . . . . . . 113
Safety features fo r occupant restraint and
protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Safety guidelines
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Safety instructions Engine compartment .. ........... .. .. 195
for using child safety seats . . . . . . . . . . . . 155
for using safety belts . . . . . . . . . . . . . . . . . 126
Mon itoring the Advanced Airbag System 144
Seat adjustment Head restraints . . . . . . . . . . . . . . . . . . . . . 116
Sea t bel ts
refer to Safety belts . . . . . . . . . . . . . . . . . . 124