ignition AUDI A5 CABRIOLET 2010 Owners Manual

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• -31°F(-35°C)USA
• -40°F ( - 40°() Canada .
You can mix the Gl2+ + coolant additive with other additives (G12+ or
G12). Always check with your authorized Aud i dealer.
& WARNING
Before you check anything in the engine compartment, always
read and heed all WARNINGS =>
& in "Work ing in the engine
compartment" on
page 280.
0 Note
• Before winter sets in, have the coolant checked to see if th e
coolant additive in your vehicle is sufficient to meet the climate
conditions . This is especially important if you live in a region where
the winter is extremely cold .
If necessary, increase the proportion of
coola nt additive to 60% .
• When adding coolant additive to your cooling system, remember:
- We recommend using only coolant additive Gl2++ (check the
label) for your vehicle . This coolant additive is available at autho­
r iz ed Audi dealers. Other types of antifreeze can significantly
reduce corrosion protection . The resulting corrosion can cause
a
loss of coolant and serious engine damage.
• Do not add any type of radiator leak sealant to your vehicle's
eng ine coolant . Adding radiator repair fluid may adversely affect the
function and performance of your cooling system and could result in
damage not covered by yo ur New Vehicle Limited Warranty .•
Vehicle OP-eration
Checking the engine coolant level
The engine coolant level can be checked with a quick
glance.
Fig. 223 Engine
compartment: 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 280 .
-Turn off the ignition.
- Let the engine cool down .
- Place a thick rag over the coolant expansion tank
~ fi~ . 223 a nd carefully twist the cap counter-clockwise
~& -
- Read the engine coolant level in the open coolant expan­
sion tank~ fig. 223 . With a cold engine, the coolant level
should be between the "min" and "max" markings. 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 281.
To obtain an accurate reading, the engine must be switched off. ~
Vehicle care Do-it-yourselt service iTechnical data

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& WARNING (co ntinued )
-Protect your face , hand s and arms from e scaping fluid and
steam by covering the cap with a large, thick rag.
- Tu rn the cap slowl y and very carefully in a counter-clockwi se
direction wh ile applying light, downward pre ssure on the top
of the cap .
- To avoid be ing burned , do not spill antifreeze or coolant on
the exhau st sy stem or hot engine parts . Under certain condi­
tions, the ethylene glycol in eng ine coolant can catch fire .
• Antifreeze i s poi sonou s. Alway s store antifreeze in it s original
container and well out of the reach of children.
• If you drain the coolant, it must be caught and saf ely stored in
a proper container clearly marked "poison ".
0 Note
• Coolant pollutes t he environment and could cause an engine fire.
E xcess coo lan t w ill be forced o ut through the pressure rel ie f va lve in
t he cap when the engine becomes hot .
• If, in an eme rgency, o nly w ate r can be ad ded , the co rrec t rat io
between water and antifreeze::::;,
page 286 must be restored as soon
as possi ble.
~ For the sake of the environment
Dr ained coolant sho uld no t be reused. A lways dispose of used coo lan t
wh ile observ ing all environmental regula tions. •
Radiator fan
The radiator fan switches on autom atically by itself.
Th e radiator fa n is d rive n by the engine via t he V-bel t. The v iscous
cl utch reg ulates t he spee d of the fan accord ing to the tem perature of
t he coolan t.
Safety first
An auxiliary e lectric rad iator fa n* switches o n and off depending on
co olan t tempe rature and ot her vehicle ope rating condi tions.
After you sw itch the engine off, the aux iliary fan can continue running
for up to 10 m inutes -even with the ignition
off. It can even switch on
again la ter by itself ::::;, & , if
• the temperature of the eng ine coolant rises due to the heat build­
up from the eng ine in the engi ne comp artment, o r
• the engine compartment heats up because the veh icle is parked in
in tense s unlight.
LJ}. WARNING
• To reduc e 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 sw itches on automat ically when the
engine coolant rea ches a certain temperature and will continue to
run until the coolant temperature drops .•
Vehicle care Technical data

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Working on the battery
Be especially careful when working on or near the
battery.
The battery is located in the luggage compartment under the
floor. Before you check anything in the lu~gage compart­
ment, read and heed all WARNINGS=>
&-
Always heed the safety warnings, when working on the vehicle
battery or the vehicle electrical system to prevent injury.
The following WARNINGS are very important when
working on the battery:
Always heed the following WARNING SYMBOLS and safety pre­ cautions when working on the battery.
@
®
Always wear eye protection.
Battery acid contains sulfuric acid. Always wear
gloves and eye protection.
No
- sparks
- flames
- smoking .
When a battery is charged, it produces hydrogen
gas which is explosive and could cause personal
injury.
Always keep the battery well out of reach of chil­
dren .
& WARNING
Whenever working on the battery or on the electrical system,
there is the risk of injury, accident and even fire. Read and heed
the following WARNINGS:
& WARNING (continued)
• Always wear eye protection. Do not let battery acid or any lead
particles get on your skin or clothing. Shield your eyes. Explosive
gases can cause blindness or other injury.
• Battery acid contains sulfuric acid. Sulfuric acid can cause
blindness and severe burns.
-Always wear gloves and eye protection. Do not tilt the
battery because acid could leak out of the ventilation open­
ings.
- If you get battery acid in your eyes or on your skin, immedi­
ately rinse with cold water for several minutes and get medical
attention.
- If you should ingest any battery acid, seek medical attention
immediately.
• Do not expose the battery to an open flame, electric sparks or
an open light.
• Do not smoke.
• Do not interchange the positive and negative cables.
• When working on the battery, be sure not to short-circuit the
terminals with tools or other metal objects. This would cause the
battery to heat up very quickly, which could lead to damage or
explosion and personal injury.
• When a battery is charged, it produces hydrogen gas which is
explosive and could cause personal injury.
• Always keep the battery well out of the reach of children.
• Before work is done on the electrical system, disconnect the
negative ground cable.
• Before performing any work on the electrical system, switch
off the engine and ignition as well as any electrical equipment.
The negative cable on the battery must be disconnected. If you are
just going to replace a light bulb, then it is enough to switch off the lights. ..,_

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& WARNING (continued)
• Before disconnecting the battery, switch off the anti-theft
alarm system! Otherwise you will set off the alarm.
• When disconnecting the battery, first disconnect the negative
cable and then the positive cable.
• Before reconnecting the battery, make sure all electrical
consumers are switched off. Reconnect the positive cable first and
then the negative cable. Never interchange the cables -this could
start a fire!
• Never charge a frozen or a thawed-out battery. It could
explode! If a battery has frozen, then it must be replaced. A
discharged battery can freeze over at 32°F (0°C).
• Make sure the vent hose is always attached to the opening on
the side of the battery.
• Never use batteries which are damaged. There is the danger of
an explosion! Always replace a damaged battery.
& WARNING
California Proposition 65 Warning:
• Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive problems. Wash hands after
handling.
0 Note
• Do not disconnect the vehicle battery when the ignition is
switched on or when the engine is running, otherwise, you will
damage electronic components in the electrical system.
• If your vehicle is going to stand for a long period of time without
being driven, protect the battery from "freezing", otherwise it will be
damaged and will then have to be replaced. •
Vehicle OP-eration
Battery charging
Starting the engine requires a well charged battery.
Fig. 225 Engine
compartment: Connec­
tors for charger and
jumper cables
Always read and heed all WARNINGS below::::;, & and::::;, &
in "Working on the battery" on
page 292.
-Turn off the ignition and all electrical consumers.
- Make sure the area is well ventilated when you charge the
battery .
- Open the engine hood ::::;,
page 2 79.
- Remove the cover over the positive terminal in the plenum
chamber.
- Open the red cover on the positive pole::::;, fig. 225.
- Connect the charger connectors according to the instruc-
tions to the jump start bolts . (Bolts under the red cover=
"pos itive", Bolts with hex head = "negative").
- Only now plug the mains lead for the charging equipment
into the wall outlet and turn it on::::;, &.
- Make sure the charging rate is not over 30 arnps/14.8
Volt. ....
Vehicle care Do-it-yourselt service iTechnical data

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If it is not poss ible to use a ba ttery of this type, the new battery must
h ave the same capacity, voltage (12 volts), amperage, const ruct ion
and plug sealing .
When installing the battery, make sure the ignition and all electrical
consumers are turned off .
0 Note
Make sure the vent ilation hose on the side of the battery is
connected, otherwise fumes or battery acid can leak out.
c£' For the sake of the environment
Because of the problem of proper disposal of a battery, we recom­
mend you r author ized Audi dealer change the battery fo r you .
Batteries contain sulfuric acid and lead and must always be disposed
of properly in compliance with all env ironmenta l regu lations.
Disposing of vehicle batteries improperly is very dangerous to the
environment. •
Windshield/headlight washer
container
Fig. 226 Engin e
c o mpa rt m ent : W in d­
s hiel d an d hea dlight*
wa sh er fl uid containe r
Vehicle OP-eration
The washer fluid container is marked with the symbol¢, on
i t s cap.
- Before you check anything in the engine compartment,
always read and heed all WARNINGS ~ & in "Working
in the engi ne compar tment" on
page 280 .
-Lift the filler cap tongue to add washer fluid. You can fill
the container to the top.
- Press the cap back onto the filler neck after filling the
co ntainer.
You can find the reservoir capacit y in the table in=> page 342.
To prevent lime res idue from build ing up on the sp ray jets, use
distilled water when refilling . Always add a glass cleaner solution
(with frost protection in the winter) .
0 Note
Do not mix engine coo lant antifreeze or any other additives to fill up
the windsh ield washer reservo ir. •
Vehicle care Do-it-yourselt service iTechnical data

IIIIL-_T.:..:..: ir:....:e~ s=---= a~ n:..:..: d:......: w..:....:.. h:....:e~ e= ls=--------------------------------------------------
The tire pressure monitor ing must be reset via rad io or MMI* each
t ime t he press ures are adjusted (e.g. w hen sw itching be tween p artial
and full load pressure) o r after changing or replac ing a tire on yo ur
vehicle => page
316. You ca n find t he recommen ded tire pressures
for your veh icle on the labe l on driver's s ide B-pilla r => page
300.
Tire tread circ umference and vibrat ion characteristics can change and
c a u se a tir e pressure war ning if:
• the t ire pressure in one or more tires is too low,
• t he tire ha s structur al dam age,
• the tire press ure was changed, wheels rotated or rep laced but the
TPM S was no t reset=> page
316.
Warning symbols
1..1' Loss of press ure in at least one tire=> &. Check the tire or tires
and replace or repair if necessary. The indicator light (• in the instru­
me nt cluste r a lso illuminates=> page
12. Check/correct the p res­
sures o f all four tires and reset TPMS via rad io or MMI *.
rr :; (T ire Pressu re M on itor ing System) Tire pres sure! System
malfunction.
If T ,.;> appears after switching the ignition on or w hile
dr iv ing => page
315, fig. 23 3 and the indica to r lig ht 'in th e instr u­
me nt clus ter b links for approx ima tely one m inute and the n stays on,
there is a system ma lf u nct io n. See your authorized Audi dealer as
soon as poss ible.
& WARNING
• If the tir e pres sure indicator appears in the instrument cluster
display, one or more of your tires i s significantly under-inflated.
Reduce your speed immediately and avoid any hard steering or
braking maneuvers. Stop as soon a s possible and check the tires
and their pressures . Inflate the tire pressure to the proper pres­
sure as indicated on the vehicle 's tire pressure label=>
page 300.
Driving on a significantly under -inflated tire causes the tire to
overheat and can lead to tire failure. Under -inflation also is likely
to impair the vehicle's handling and stopping ability.
& WARNING (co ntinued )
• The driver is re sponsible for maintaining the correct tire pres­
sures . You must check the tire pres sures regularly .
• Under certain conditions (such as a sporty driving style , winter
conditions or unpaved roads) , the pressure monitor indicator may
be delayed.
• Ask your authorized Audi dealer if run-flat tires may be used on
your vehicle . Your vehicle registration becomes invalid if you u se
the se tires when not permitted. Damage to your vehicle or acci­
dents could also result.
[ i ] Tips
• T he tire pressure monito ring system stops working when there is
an ES P/ABS malf u nctio n.
• Using snow cha ins may res ult in a system ma lf u n ct ion .
• The tire pressure mon itor ing system on your Au di was calibrated
using t ires with the "AO" or "RO " id ent ificat ion . We re comme nd
using these tires. •
Applies to vehicles: with tire p ressure monito ring sys tem
Reset tire pressure monitoring system
I f the tire pressure is adjus ted, wheels are rotated or
changed, th e TPfvf S must b e re set via radio or fv1fv1 I*.
- Turn on the ign it ion .
- Sele ct: Fu nct ion bu tton
[C AR]> Tire pressure monitoring
> Store now.
[ i ] Tips
Before resett ing the TPMS, the current pressures of all four t ires
mus t co rrespo nd to the specifie d val ues. A djust the tire pre ssure and
~

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Fuses and bulbs
Fuses
Replacing a fuse
A problem in the electrical system may be caused by a
blown fuse.
Fig. 244 Instrument
panel left: Face cover
- Locate the fuse which belongs to the component which
failed.
- Switch off the ignition and the electrical component affected.
- Carefully pry the face cover
off the instrument panel using
a screwdriver => fig. 244 .
- Remove the plastic clip from its retainer in the face cover,
place it over the questionable fuse and remove the fuse.
- Replace a blown fuse (recognizable by the melted metal
strip inside) with a fuse of the
same amperage.
The individual circuits are protected by fuses. The fuse panels with
the fuses are located on the left and right front faces of the instru-
Vehicle OP-eration
ment panel behind a cover and in the right storage area in the
luggage compartment.
There is a plastic clip in the cover on the left side of the instrument
panel, which can be used to remove the fuses. You will also find a
label on both covers in the instrument panel with the fuse layout for
the corresponding fuse panel.
& WARNING
Never replace a fuse with one that has a higher amperage rating.
• A fuse with a too high amperage could damage the electrical
part and cause a fire.
0 Note
• On no account should fuses be repaired (e.g. patched up with tin
foil or wire) as this may cause serious damage elsewhere in the elec­
trical circuit or cause fire .
• If a fuse blows repeatedly, do not keep replacing it. Instead, have
the cause of the repeated short circuit or overload located and fixed.
Ii] Tips
You are well advised to keep a supply of spare fuses in your vehicle .
Fuses with the proper ampere ratings are available at your authorized
Audi dealer. •
Vehicle care Do-it-yourself service iTechnical data

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No. Consumer Amps
5 Not used
6 Veh
icle electrical system control mod ule 1 35
7 Vehicle electrical system control module 1 20
8 Vehicle electrical system control modu le 1
30
9 Left rear window regulator motor 7,5
10 Veh icle electrical system co ntrol mod ule 1
30
Right rear window regulator motor 7,5
1 2 Convenience e lec tro nics 5
Fuse Location, Instrument Panel right
Fig. 24 6 Fus e p anel
lay out
Some of the equ ipment items l isted are optio nal or only avai lab le on
certain mode l configurations.
Note that the following table is a ccurate at the time of going to
p re ss and is sub ject to change. In the ev ent of discr epancie s, the
label on the in side of the co ver alwa ys takes pre cedence.
T he power seats are p rote cted by cir cuit breaker s, which a utomat i­
cally reset after a few seconds after the over load has been remedied.
•
Vehicle OP-eration
No. Consumer Amps
Fuse panel (black )
1 Not used
2 Not used
3 Not used
4 Not used
5 Steering column switch module
s
6 Electronic Stabilization Program 5
7 Terminal 15 diagnostic connecto
r 5
8 Gateway (Databus diagnostic interface) 5
9 Not used
1 0 Not used
11 Not used
12 Not used
Fuse panel (brown)
1 C D-/DVD player 5
2 Audi drive select switch module 5
3 MMI/Radio
5/20
4 Instrument cluster 5
5
Gateway (instrument cluster control module) 5
6 Ignition lock 5
7 Rotary light switch
5
8 Climate control system blower 40
9 S teering column lock
5
Vehicle care Do-it-yourself service iTechnical data

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The safety compliance sticker
is your assurance that yo ur new vehicle complies with all applicable
Fede ral Motor Veh icle Safe ty Standards which were i n effect at the
time the vehicle was manufact ured . Yo u can fi nd this sticker on the
left doo r jamb.
It shows the mont h and year of prod uct io n and the
vehicle identification number of your veh icle (perforation) as well as
the Gross Vehicle Weight Rating (GV WR) and the Gross Axle Weight
Rating (GAWR).
The high voltage warning label
is located o n the loc k carrier.
The spark ignition system complies with the
Canadian standard ICES-002. •
Weights
Gross Vehicle Weight Rating
The Gross Vehicle Weight Rating (GVWR), and the Gross Axle Weight
Rating (GAWR) for front and rear are listed on a sticker on the left
door jamb.
T he Gross Vehicle Weight Rating includes the weight of the basic
vehicle pl us f ull f uel tank, oil and coo la nt, plus max im um load, whi ch
includes passenger we ight (150 lbs/68 kg per des ignated seating
position) and luggage weight~& .
Gross Axle Weight Rating
The Gross Axle Weight Ra ting is the maximum lo ad that can be
applied at each axle of the vehicle~&.
Vehicle capacity weight
The vehicle capac ity weight (max . load) is listed either on the driver's
side B -pillar or inside the fuel fille r flap .
Safety first
& WARNING
• The actual Gross Axle Weight Rating at the front and rear axles
s hould not exceed the permis sible weights, and their combination
must not exceed the Gross Vehicle We ight Rating.
• Exceeding permi ssible weight rating s can result in vehicle
damage, accidents and personal injury .
0 Note
• The vehicle capac ity we ight figu res apply when the load is distrib­
uted evenly i n the vehicle (passengers and luggage). When trans ­
porti ng a heavy load i n the l uggage compartment, ca rry the load as
near to the rear axle as possible so that the veh icle's handling is not
impa ired.
• Do not exceed the maximum permiss ible axle loads o r the
maximum gross vehicle weig ht. Always remember that the vehicle's
hand ling will be affecte d by the extra load. Therefore, adjust your
speed a ccording ly .
• Always observe loca l reg ulations. •
Dimensions
The specifications refer to the basic mo de l. Differences may occur
depend ing on the model ty pe a nd options ordered, for exam ple, tir e
sizes .
0 Note
When d riving up steep ramps, on rough roads, over c urbs, etc . it is
impo rtan t to remember th at some parts of yo ur vehicl e, s uch as
spoilers or ex haust system components, may be close to the ground.
B e careful not to d amage them .•
Do-it,yourself service Technical data

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& WARNING (co ntinued )
• The engine compartment of any motor vehicle is a potentially
hazardous are a. Nev er reach into the area around or touch the
radiator fan. It is temperature controlled and can switch on
suddenly -even when the engine i s off and the ignition key has
been remo ved. The radiator fan switches on automatically when
the coolant reache s a certain temperature and will continue to run
until the coolant temperature drops.
• Always remove the ignition key before anyone gets under the
vehicle.
• Alway s support your vehicle with safety stands if it i s nece ssary
to work underneath the vehicle. The jack supplied with the vehicle
is not adequate for this purpose and could collapse causing
serious personal inju ry.
• If you must work underneath the vehicle with the wheels on
the ground, always make sure the vehicle is on level ground , that
the whe els are always securely block ed and that the engine cannot
be started.
• Always make sure the transmi ssion selector lever (automatic
transmiss ion) is in "P" (Park position ) and the park brake is firmly
app lied .
c£> For the sake of the environment
• C ha ng ing the engine settings will a dversely affe ct emiss ion levels.
Th is is det rimenta l to the environment and increases fuel consump­
t ion.
• Always observe environmental regulations when dispos ing of o ld
eng ine oi l, u se d brake fl uid, d irty engine coo lant, s pen t batter ies or
worn out t ires .
• Undeployed a irbag modules and prete ns ione rs m ight be classified
as Perchlorate Materia l -spec ia l hand ling may apply, see
www.dt sc.ca .gov/h azardousw aste/pe rc hl or ate. When the vehi cle or
parts of the rest raint system including airbag modu les safety belts
wit h pre tens io ner s are sc rappe d, a ll applicable laws an d reg ulat io ns
Safety first
must be observed. Your author ized Aud i dealer is familiar with these
req uirements and we re commen d that yo u have yo ur d eale r perfo rm
t his service for you. •
Additional accessories,
modifications and parts
replacement
Additional accessories and parts
replacement
A lways c onsul t an au thori zed Audi dealer before
purchasing acces so ries .
Your vehicle incorporates the latest safety des ign feat ures ens uring a
high s tand ard of active and pas sive s afe ty.
T hi s safety could be compromised by non-app roved changes to the
vehicle. Fo r th is reaso n, if pa rts have to be re place d, ple ase obse rve
t he following poin ts when ins talling addit ional accessories:
Approved Audi accessories and genuine Audi parts are available from au thor ized Au di deal ers .
These dea lers a lso have the necessary facilities, tools and tra ined
s pecialists to install t he p arts and ac cesso ries p roper ly .
& WARNING
Using the wrong spare parts or u sing non-approved acces sories
can cause damage to the vehicle and serious personal injury.
• Use only accessorie s expressly approved by Audi and genuine
Audi spare parts
• These parts and accessories have been specially designed to be
used on your vehicle . ..,_
Do-it,yourself service Technical data