2014 AUDI A5 CABRIOLET heating

186 Intelligent technology
to prevent excessive disc harge of the battery
and thus maintain starting capability.
Dynamic en ergy management
While the vehicle is be ing dr iven , dynamic en­
e rgy management distributes the energy gen­
erated accordi ng to the needs of the individu­
a l components . It reg ulates cons umption, so
that more electrical energy is not being used
than is being generated and ensures an opti ­
mal state of charge for the battery.
@ Tips
- But even energy management cannot
negate the limits o f physics. Consider
that the power and life of a battery are li mited .
- If starting ab ility is threatened, the indi­
cator light(•) appears
¢ page 17.
What you should know
The highest priority is given to maintaining
starting capabili ty.
The battery is severely taxed in short-distance
d riving, in city traffic and during the co ld time
of year. Abundant e lectr ica l energy is re ­
qu ired, but only a little is generated. It is also
cr itical if the engine is not run ning and electri­
cal components a re turned on . In th is in ­
stance energy is being consumed but none is be ing generated.
It is in precisely these situations that you w ill
notice energy management actively regulat ­
ing the distr ib ution of energy.
Vehicle stands for an extended period If yo u do not drive your vehicle over a period
of severa l days or weeks, electrical compo­
nents are gradually cut back o r switched off .
This reduces energy cons umption and mai n­
tains sta rting capab ility over a longer period .
Some of t he conve nien ce f unctions may no t
ope rate, su ch as the in ter io r l ights o r the
power seat ad justment. The convenience
f u nctions will be avai lable again when you
switch on the ignition and start the engine . With the engine turned off
If you
listen to the radio, for examp le, w ith
t h e engine t urned off or use other M MI func ­
tions, the battery is being discharged .
If s tarti ng capab il ity is jeopardi zed d ue to en­
ergy consumptio n, the following warning ap­
pears in the MM I display:
Pl ea se start the engine soon or the syst em
will be turned off .
The warning indicates that the system will be
tu rned off automatically after 3 minutes . If
you w ish to continue using the funct ions, yo u
have to sta rt the eng ine .
With the engine running
Althoug h electrical energy is generated when
the vehicle is being dr iven, the battery can be ­
come discharged. This happe ns mostly when
li ttle energy is being ge ne rated and a g reat
deal consumed and t he ba ttery's state of
c harge is no t opt imal.
To b ring the energy bala nce back into equ ili­
br ium, consumers wh ich requ ire espec ially
lar ge amounts of ene rgy a re temporar ily cut
ba ck or sw itched off. Heat ing systems in p ar­
t icu lar require a great deal of energy . If you
notice, for examp le, that the heated seats * or
the heated rear window are not heating, they
have been temporarily cut back or switched
off . These systems w ill be available again as
soon as the e nergy balance has been restored.
You w ill also notice that engine id le speed has
been increased slightly . T hi s is normal and not
a cause for concern. By increasing engine id le
speed the additional energy required is ge ner ­
ated and the battery is charged .

188 Driving and en vironm ent
8_ WARNING
After driving through water, mud, slush,
etc ., the brakes may be slow to take effect
because of wet brake rotors and pads . Dry
the brakes first by braking carefully to re­
store the full braking effect.
(D Note
Vehicle components such as the engine,
transmiss ion, suspension or electrical sys­
tem can be severely damaged by driving
through wate r.
@ Tips
- Check the depth of the water before dr iv­
i ng through it .
- Do not stop the veh icle, dr ive in reverse
or switc h the engine off when driving
t hr ough water .
- Keep in mind that oncoming vehicles
may c reate waves that raise the water
l evel and make it too deep fo r you r vehi­
cle to dr ive through safely.
-
- Avoid dr iving thro ugh salt water because
i t can ca use corrosion.
Catalytic converter
It is very important that your emission con­
trol system (catalytic conv ert er) is function ­
ing properly to ensure that your vehicle is run­
ning in on env ironm entally sound manner.
,,. Always use lead-free gaso line Q page 201,
Fuel supply .
,,. Never run the tank down a ll th e way to emp ­
ty.
,,. Never put too much moto r oil in your engine
Q page 211 , ~ Adding engine oil .
,,. Never try to push -or tow -start your ve hicle .
T he cata lytic converter is an eff ic ient "clean­
up" device built in to the exhaust system of
the vehicle . The catalytic converter burns
many of the polluta nts in the exhaust gas be ­
fore they are released into the atmosphe re . The exclus
ive use of unleaded f uel is critica lly
important for the life of the catalytic conv ert­
er and p roper funct ion ing of the eng ine .
A WARNING
=
-The temperature of the exhaust system
is high, both when driving and after stop­
p ing the eng ine .
- Never touch the exhaust tail pipes once
they have become hot. This could result
in burns.
- Do not park or operate the vehicle i n
areas where the hot exhaust system may
come in co ntact with dry grass, brush,
fue l spill or other material wh ich can
cause a fire .
- Do not app ly additional undercoating or
r u stp roofing on or nea r the exhaust
manifold, exhaust pipes, cataly tic con­
ver ter or he at s hields. Dur ing driv ing, the
substance used fo r undercoating could
overheat and cause a fire.
CI) Note
- Be aware tha t just o ne tank filling with
leaded fu el w ill alre ady ser io usly de ­
grade the performance of the cata lytic
converter .
- Do not exceed the cor rect engine oil level
Q poge 211.
-Do not drive until the fuel t ank becomes
comple tely empty . The engine cou ld mis ­
fire . Unburned fuel could also get into
the exhaust system and th is co uld cause
the catalytic converter to overheat.
- Do not turn off the ignition while the ve­
hicle is mov ing.
- Do not contin ue to ope rate your veh icle
under these conditions, as otherwise fuel
can reach the catalyt ic converter. Th is
co uld result in overheating of the con­
verter, requir ing its replacement.
- To assure efficient operation of the Emis -
sion Control System: .,..

190 Driving and en vironm ent
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel .
.,. Shut the engine off when you are not dr iving
the vehicle.
.,. Do not warm up the vehicle by letting the
engine run at idle .
It makes sense to shut
off the engine in traffic
jams, when waiting for trains to pass at ra il­
road crossings, or at traff ic lights that have
l ong wa its on red . Turning the engine
off fo r
just 30-40 seconds saves more fue l than is
burned starting the eng ine again .
It takes a long time for the engine to warm up
fu lly when it is running at idle . Howeve r, wear
and nox ious em issions are especially high
when the engine is warming up. So you should
drive away as soon as you start the engine and
avoid running at high rpms while the engine is
still warming up .
(D Note
Do not leave engine idling unattended af­
ter starting . If warning lights shou ld come
on to indicate improper operation, they
wou ld go unheeded. Extended idling also
produces heat, which cou ld result in over­
heating or other damage to the vehicle or
other property .
Regular maintenance
A badly tuned engine unnecessarily wastes a
lot of fuel .
... Have your vehicle serviced at regular inter-
vals.
By having your vehicle regularly serviced by an
authorized Audi dealer he lps to ensure that it
runs properly and economically . The condition
of your vehicle not only affects its safety and
ab ility to hold its value, it also affects
fu el
con sumpt ion .
Check you r oil ea ch time you fill you r tank.
The amount o f oi l used is re lated to engine
load and speed.
It i s normal fo r the oil consump tion of a new
engine to reach its lowest value after a certa in
mileage has been d riven.
You must drive your veh icle about 3,000 m iles
(S,000 kilometers) before you can properly
assess oil consumpt ion.
This also app lies to fue l consumption and en­
gine o utput.
(D Note
- Have your veh icle ma inta ined properly
and in acco rdance with the service rec­
ommendations in your Wa rranty
& Main­
t enance boo klet . Lack of p roper ma inte­
nance as well as improper use of the ve­
hicle will impair the function of the
emission contro l system and cou ld lead
to damage.
- Do not alter or remove any component of
the Emission Control System unless ap­
proved by the manufacturer.
-Do not alter or remove any device, such
as heat sh ie lds, switches, ignit ion w ires,
valves, which are designed to protect
your vehicle's Emission Control System and other important vehicle compo­
nents.
Fewer short trips
Fuel consumption will always be relatively
high on short trips .
.,. Try to avoid dr iv ing short distances w ith a
cold engine .
T he engine and cata lytic converter have to
reach their opt imal
operat ing temperature to
reduce fuel consumpt ion and nox ious emis­
s ions effectively .
Just after starting, a co ld eng ine in a mid-s ize
car only achieves a fuel economy of 6-8 mi les
per gallon (30-40 l/100 km). After about a
half a mile, fuel economy cl imbs to 12 mpg
(20 l/100 km) . After about
2 .5 miles (4 km), ll>

-Never use abrasive cleaning materials
or alcohol to clean the camera lens.
Th is could cause scratches and cracks .
-Po we r top
-Remove bird dropp ings immediately.
- Never use gasoline, stain remover, ben-
zene, paint thinner or other solvents to
remove stains .
-W ind ows
-Remove snow and ice on w indows and
exterior mirrors with a plastic scraper.
To avoid scratches, move the sc raper
only in one direction and not back and
forth .
- Never remove snow or ice from win­
dows and mirrors using warm or hot
water because this cou ld cause cracks
to form.
- To avoid damage to the rear window
defogger, do not apply any stickers on
the heating wires on the inside of the
w indow.
- Decor ati ve pa rts /tri m
- Never use chrome care or cleaning
products.
-Pa int
- To reduce the risk of sc ratches, the ve-
hicle must be free of dirt and dust be ­
fore polishing or waxing.
- To prevent paint damage, do not polish
or wax the vehicle in direct sunlight .
- To reduce the risk of paint damage, do
not polish away rust film.
- Di spla ys
- To avoid scratches, do not use dry
cleaning methods on displays.
- Cont rols
- Make sure that no flu ids enter the con-
trols, because this cou ld cause dam­
age.
- Safe ty belt s
-Do not remove the safety belts to clean
them .
- Never clean safety belts or their com­
ponents chemically or with corrosive
fluids or solvents and never allow sharp objects to come into contact
V ehicl e ca re a nd cl eanin g 199
with the safety belts . This could cause
damage to the belt webbing.
- If there is damage to the webbing, the
connections, the retractors or the buck­
les , have them replaced by an author­
ized Audi dealer or qualified workshop.
- Te xtile s/Vin y l/ Alcant ara
- Never treat V inyl/Alcantara w ith leath-
er care products , solvents, floor polish,
shoe polish, stain remover or s imilar
p roducts.
- To avoid damage, have stubborn stains
removed by an autho rized Audi dea le r
or qua lified wor kshop.
- Neve r use steam cleaners, brushes,
hard sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry
the seat.
- Objects w ith sharp edges such as zip­
pers, rivets on clothing or be lts can
cause damage to the surface.
- Open hook and loop fastene rs, for ex­
ample on cloth ing, can damage seat
covers. Make sure hook and loop fas­
teners are closed .
-Natural leath er
- Never treat leather with solvents, floor
polish, shoe polish, stain remover or
similar products.
- Objects with sharp edges such as zip­
pers, rivets on clothing or be lts can
cause damage to the surface.
- Never use steam cleaners, brushes,
hard sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry
the seat.
- To help prevent the leather from fad­
ing, do not leave the vehicle in d irect
sunlight for long periods of time . If
leaving the vehicle parked for long pe­
riods of time, you should cover the
leather to protect it from d irect sun­
light .
(D Tips
-Insects are easier to remove from paint
that has been freshly waxed .
•
•

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
quires 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 anticorrosion 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 cool­
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 antifreeze protection and cooling efficien­
cy. If the coolant frost protection is too low,
the coolant could freeze and damage the vehi­ cle heating and engine cooling system.
For year-round driving, antifreeze is added at
the factory for temperatures down to:
- -31°F(-35°C)USA
- -40 °F ( - 40 °C) Canada.
If you must add coolant, use a mixture of wa­
ter and coolant additive. 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 206.
(D Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in
Checking and filling 213
your vehicle is sufficient to meet the cli­
mate conditions. This is especially impor­
tant if you live in a region where the win­
ter is extremely cold. 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 for your vehicle.
This coolant additive is available at au­
thorized Audi dealers. Other types of
antifreeze can significantly reduce cor­
rosion protection. The resulting corro­
sion can cause a loss of coolant and se­ rious 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 Vehicle
Limited Warranty.
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance.
Fig. 178 Eng ine compartment: Cover on the coolant
expansion tank
"' Before you check anything in the engine
compartment,
always read and heed all
WARNINGS ¢ .&, in Working in the engine
compartment on page 206.
"'Park your vehicle on a level surface .
.,. Turn off the ignition.
.,. Read the engine coolant level from the cool­
ant expansion tank ¢
fig. 178, ¢ page 208,
fig. 175.
With a cold engine, the coolant Iii>

Fuses and bulb s 251
No. Con sumer Amps No. Consumer Amps
•
A/C system pressure sensor, Two-door models: rear left
• electromechanical parking window regulator; Four-
brake, Homelink, automatic 11 door models:
rear left door
30
3 dimming interior rear view
5 (window regulator, central
m irror, air quality/outside locking, switch, lighting)
air sensor, Electronic Stab ili-
12 Rain and light sensor
5
zation Control (button)
5 Sound
actuator
5
Fuse panel© (r e d )
6 Headlight
range cont rol/
5/7,5
head light (cornering light)
No. Consumer Amps
3 Lumbar support 10
7 Headlight (corner
ing light) 7,5
4 Dynamic steering 35
Contro l modu les (e lectro-
s Inter ior lighting (Cabriolet)
5
8 mechanical parking brake,
5
shock absorber, quattro
sport), DCDC converter
9 Adaptive cru ise contro l 5 6
W
indshield washer system,
35
h eadlight washe r system
7 Vehicle electrical
system
20
control module 1
10 Shift gate/clutch
sensor
5
1 1 Side ass ist 5
8
Vehicle electr ica l system
30
control module 1
1 2 Headlight range
control,
5
park ing system 9 Left rear window regulator
7,5/20
motor (Cabriolet)/sunroof
13 Airbag 5
14 Rear wiper (allroad) 15 10 Vehicle e
lectrical system
30
control module 1
1 5 Auxi
liary fuse (instrument
10
pane l) 11 R
ight rea r window regulato r
7,5/20
(Cabriolet)/sun shade motor
16 Aux
iliary fuse terminal 15
40
(engine area) 12 Anti-theft
alarm warning
5
system
Fuse p anel @ (brown )
No. Con sumer Amps
2 Brake light sensor 5
3 Fuel
pump
25
4 Clutc h sensor 5
5 Left
seat heating with/w ith-
15/30
out seat vent ilation
6 Electronic Stab
il iz at ion Con-
5
tro l (e lectric)
7 Horn 15
Front left door (window reg-
8 ulator, centra
l locking, mir-
30
ror, switch, lighting)
9 Winds hield wipe r motor 30
1 0 Electronic
Stabilizat ion Con-
25
trol (valves)

No. Consumer
5 Electromechanical
parking
brake
6 Electronic damping control
7
Electromechanical parking
brake
8 Rear exterior lighting
9 quattro sport
10 Rear
exterior lighting
1 1 Central locking
12 Termina
l 30
Fu se pa nel © (brown )
No. Con sumer
1 Luggage compartment lid
control module (allroad)
2 1
2-volt socket, cigarette
lighter
3 DCDC
converter path 1
4 DCDC converter path 2,
so und amplifier, radio
6
Right upper cabin heat ing
(Cabr iolet)
7
Electromechanical parking
brake
Right front door (w indow
9 regu lator, central lock ing,
m irror, swit ch, lig hting)
10 Left upper
cabin heating
(Cabriolet)
Two -door models: rear right
window regulator; Four-
11 door mode
ls: rear right door
(window regulator, central
locking, sw itch, lighting)
12 Cell phone prep
Fu se panel © (black )
No. Consumer
1 Right front seat heating
4
MMI
5 Radio
6 Rear view camera
Amp s
5
15
30
30
35
30
20 5
Amp s
30
20
40
30
30
30
30
30
30
5
Amps
15
7,5
5
5
Fu ses and bulb s 253
No. Consumer Amps
7
Rear window heater (all-
30
road)
8 Rear Seat Entertainment 5
Bulbs
Replacing bulbs
For your safety, we recommend that you hove
your authorized Audi dealer replace any bulbs
for you .
It is becoming increasingly more and more
difficult to replace vehicle light bulbs since in
many cases, other parts of the car must first
be removed before you are able to get to the
bulb. This applies especially to the light bulbs
in the front of your car which you can only
reach through the engine compartment.
Sheet metal and bulb holders can have sharp
edges that can cause serious cuts, parts must
be correct ly take n apa rt and then p roperly put
bac k together to he lp p revent breakage of
parts and long te rm damage from water that
can enter housings that have not been p roper­
ly re sea led .
Fo r you r safety, we re commend that you have
your autho rized Audi de aler replace any b ulbs
f or you, since your dealer has the proper too ls,
the correct bulbs and the expertise.
Gas disc har ge la mp s (Xenon l ig hts)*:
Due to the high electr ical voltage, have the
bulbs replaced by a qualified techn ic ian .
Head lights w ith Xenon light are identified by
the h igh vol tage sticker.
_&. WARNING
Changing Xenon lamps without the neces­
sary equipment can cause serious persona l
injury .
- Bulbs are pressurized and can explode
when being changed. Potential risk of in­
jury!
-
•
•

Checking the engine coolant leve l .. ... 213
Radiator fan ................. .. ... 215
Engin e coolant temperature
Temperature gauge ................. 10
Eng ine hood
Closing .. ..... ........... ...... .. 206
How to release the hood ............ 206
Eng ine oil . .. ............. .... .. ... 208
Adding ... . ............. .... .. .. . 211
Additives . .. ............. .... .. ... 211
Changing ...................... .. 212
Check oil level .................. .. 211
Consumption ............ .... .. ... 211
I ndicator light ................. 17,21
Oil consumption .......... .... .. ... 210
Oil grades .. ................. .. ... 208
Pressure malfunction ........... ..... 17
Sensor defective . . . . . . . . . . . . . . . . . . . . 21
Specification and viscosity .. .. .. .. .. . 208
Engine speed limitation ............... 21
Env ironment
Break- in period ... .. ... ... .. .. .. .. . 187
Catalytic converter . .......... ... .. . 188
Disposing of your vehicle battery .. .. . 220
Driving at high speeds .............. 189
Driving to minimize pollution and noise 189
Fuel . .... .. .. ................ .... 204
Fu el economy ................ .. ... 189
Leaks under your vehicle ... .. .. .. .. . 206
Letting the vehicle stand and warm up. 190
Proper disposal of drained brake fluid . 216
Proper disposal of drained engine cool -
ant . .. .. .. .. .... ........ .... ... . 214
Proper disposal of drained engine
oil ...... .. ................. 211,212
Recycling used engine oil ... .. .. .. .. . 211
Unleaded fuel ..................... 201
What should I do with an old battery? . 220
EPC
refer to Electronic power control . . . . . . 20
Ethyl alcohol (Fuel) .................. 202
Ev ent Data Recorder (EDR) . . . . . . . . . . . . 179
Exhaust tail pipes
C leaning . .. ............. .... .. ... 197
Expansion tank ............ .... .. ... 213
Exterior lighting . . . . . . . . . . . . . . . . . . . . . 51
Index 273
Exterior mirrors
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . 54
Dimming ... ... .. .. ................ 55
Heating ... .. .. .. ................. . 54
F
Fan
Radiator 215
Fastening Booster seats .. .. .. .............. . 169
Convertible child safety seats ....... . 168
Infant seats ..... ................. 167
Flat tire Changing ... .. ...... ............. 244
flexible fuel ........................ 202
Floor mats ... ..... .. ............... 126
Fog lights/rear fog lig ht(s) . . . . . . . . . . . . . 51
Folding the rear seats ............ .. .. . 67
Foot pedals . .. .. .. .. . .............. 126
For the sake of the environment Gasoline fumes and the environment .. 204
Letting the engine warm up . . . . . . 74, 77
Refueling . .. .. .. .. .. ........... .. 204
Saving fuel by early upsh ifting ..... .. . 11
Front airbags Description . . . . . . . . . . . . . . . . . . . . . . . 144
How they work . . . . . . . . . . . . . . . . . . . . 149
Frontal collisions and the laws of physics 133
Front passenger's door emergency locking 36
Front seats Adjusting ....... .. ............... 123
Child restraints in the front seat ...... 141
Upper cabin heating ............ .. .. . 72
Fuel Additives ............... .......... 201
Blended gasoline .................. 201
Consumption .. .. .... ......... .. .. . 25
Filler neck . .. .. .. .. ............... 203
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Gasoline ... ... .... ............... 201
Gasoline additives . ............... . 203
Low fue l level symbol . . . . . . . . . . . . . . . 21
Octane rating .. .. ................. 201
Recommendation . .. ........... .... 201
Refuelling ... .. .. .. . .. ... .... ..... 204
Reserve ................ ........... 12
Tank capac ity .. .. .. .............. . 262
•
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