check engine AUDI A5 CABRIOLET 2014 Owner's Guide

@ For the sake of the environment
Because of the pr oblem of proper d isposa l
of brake flu id as we ll as the special tools
requ ired and the necessary expert ise, we
recommend that you have the brake fluid
changed by your author ized Audi dealer .
Battery
General information
Under normal operating conditions, the bat­
tery in your Audi does not need any mainte ­
nance. With
high outside temperatures or
long daily dr ives we recommend that you have
the electro lyte level checked by an authorized
Aud i dealer or qualified workshop . The elec­
trolyte leve l should also be checked each time
the battery is charged ¢
page 219.
Have the battery checked when you take your
ve hicle in for service . Yo u are well adv ised to
replace a battery that is older than 5 yea rs .
W ith certa in types of a irbag deployment, t he
b attery is d isconnected from the vehicle elec­
tr ica l system for safety reasons¢.&.
in Re ­
pair, care and disposal of the airbags on
page 1 53.
Disconnecting the battery terminals
Some vehicle functions (power w indow regu­
lators , for example) are lost if the battery ter­
m inals a re d isconnected. These func tions have
to be re lea rned after the batte ry term inals a re
connected agai n. T o prevent this , the bat tery
should only be d isconnec ted from the vehicle
e lec tric al system when absolu tely necessa ry
for repairs .
Vehicles not driven for long periods
If you do not drive you r vehicle over a period
of severa l days or weeks, elec trical compo­
nen ts are gr adually cut b ack o r swi tched off .
This redu ces energy cons umption and main­
tains starting capab ility over a longer per io d
¢ page 185.
Some o f the conven ience f unctions m ay not
ope rate, su ch as the in ter ior lig hts or t he
Checkin g and fillin g 217
power seat adjus tment. The convenience
funct io ns w ill be available again when yo u
turn o n the ign ition and start the engine.
Winter operation
D ur ing the w inte r mon ths, bat tery capa city
tends to dec rease as tempera tures drop . This
is beca use more power is a lso consumed wh ile
starting, and the headlights, rear window de­
fogge r, etc., are used more often.
Avoid unnecessary powe r consumpt ion, pa r­
ticular ly in city traffic or when traveling only
sho rt distances. Let yo ur autho rized A udi
dealer check the capacity of the vehicle bat ­
tery before w inter sets in
¢ page 219. A well
charged battery will no t on ly prevent star tin g
problems w hen the weather is cold, but w ill
also last longer .
@ Tips
If your vehicle is left standing for seve ral
weeks at extremely low temperatures, the
vehicle battery s hou ld be removed and
stored where it will not freeze . This will
p revent it from be ing damaged and having
to be repla ced .
Working on the battery
Be especially careful when working on or near
the bat tery.
The battery is located in the luggage compar t­
ment under the floor . B efo re you che ck any­
thi ng in the luggage compartment,
read and
heed all WARNINGS
¢ ,&. .
Always heed the safety warnings , when work­
i ng on the veh icle batte ry or t he vehicle e lec­
t rical sys tem to p reven t inju ry.
The following WARNINGS are very
important when working on the battery:
Always heed the following WARNING SYM· BO LS and safety precautions when working
on the battery .
®
Always wear eye protection.
•
•

218 Check ing and filling
&
Batter y acid contain s sulfuric acid . Al ·
wa ys wear glo ves and eye prote ction .
@
No
- spar ks
- flames
- smoking .
~
When a b attery i s ch arged , it p roduce s
h y d rogen ga s whi ch i s ex plosi ve and
c ould cau se per sonal inju ry.
®
Alwa ys keep the battery well out of
r ea ch of children .
A WARNING
Whenever working on the battery or on
the electrical system, there is the risk of
injury , acc ident and even fire. Read and
heed the following WARNINGS:
-Always wear eye protection. Do not let battery acid or any lead part icles get on
your sk in or cloth ing . Sh ield your eyes .
Explosive gases can cause blindness or
other injury .
- Battery acid contains sulfur ic acid . Sulfu­
ric acid can cause blindness and severe
burns.
- Always wear gloves and eye protection.
Do not tilt the battery because ac id
could leak out of the vent ilation open­
ings.
- If you get battery acid in yo ur eyes or
on your sk in, immediately rinse with
cold water for severa l 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 neg -
ative cab les.
- 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,
wh ich could lead to damage or explosion
and personal in jury.
-
- 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 sys­
tem, disconnect the negat ive ground ca­
ble.
- Before performing any work on the e lec­
trica l system, switch off the engine and
ignit ion as well as any electrical equip­
ment. The negative cable on the battery
m ust be disconnected .
If you are just go­
ing to replace a light bulb, then it is
e nough to swi tc h off the lights.
- Before disconnecting the battery, switch
off the anti-theft alarm system! Other­
wise you wi ll set off the alarm.
- When disconnecting the battery, f irst
d isconnect the negat ive cab le and then
the posit ive c ab le.
- Before reconnecting the batte ry, ma ke
sure all e lectr ica l consumers are sw itch­
ed off . Re conne ct the pos it ive cab le first
and then the negative cable. Never inter ­
change the cables - this could start a fire!
- Never cha rge a frozen or a thawed-out
battery. It could exp lode! If a battery has
frozen, then it must be replaced . A dis­
charged battery can freeze over at 32°F
(QOC).
- Make sure the vent hose is always attach­
ed to the opening on the s ide of the bat­
tery.
- Never use batteries which are damaged.
There is the danger of an explosion! Al­
ways rep lace a damaged battery.
A WARNING
Ca lifornia Proposition 65 Warning:
- Battery posts, terminals and related ac­
cessories conta in lead and lead com­
pounds, chem icals known to the State of
California to cause cancer and reproduc­
tive problems . Wash hands after han-
dling.
~

(D Note
-Do not disconnect the ve hicle battery
when the ignition is sw itched on or when
the engine is running, otherwise, yo u will
damage e lectronic components in the
electrica l system .
- If your vehicle is going to stand for a
l ong period of time without being driven,
protect the battery from "freezing", oth­
erwise it w ill be damaged and w ill then
have to be replaced .
Battery charging
Starting the engine requires a well charged
batt ery.
F ig. 180 Engin e comp artm ent: Conn ecto rs for char ger
an d jumper cables
Always read and heed all WARNINGS below
c::, &. and c::, &. in Working on the battery on
page
218 .
.,. Turn off t he ignit io n and all electrical con­
s umer s .
.,. Make sure the area is well vent ilated when
you charge the bat tery .
.,. Open the engi ne hood
c::, page 2 06.
.,. Open the cove r on the pos it ive pole
¢ fig . 180 .
.,. Co nnect the charger connectors according to
the instructions to the
jump start bolts.
(Bolts under t he cover= "positive", Bolts
with hex head = "negative").
.,. Only now plug the mains lead for the charg­
i ng equipment into the wall outlet a nd turn
i t on
c::, &_ .
.,. Make sure the charging rate i s not over
30 amp s/14 .8 Volt .
Checkin g and fillin g 219
.,. When the bat tery is fully cha rged : Tu rn the
charging equ ipment off and
remove the
mains lead from the wa ll out let .
.,. Now remove the clamps for the charging
equ ipment.
.,. Close the cover on the positive pole .
.,. Close the hood
c::, pag e 206 .
A discha rged bat tery can freeze at tempera­
tures of only 32 °F (0 °C) . Allow a frozen bat­
tery to thaw comp letely before attempting to
cha rge it
c::, .&. . However, we r ecommend not
u sing a thawed batte ry aga in beca use the b at­
te ry casing can be cr acked due to i ce fo rma­
tion an d ca n leak b attery a cid.
Battery charging (Maximum charging rate
of 30 amps/14.8 Volt )
When charging at low vo ltages (e.g. wi th a
trickle charger) , the ba tte ry cables do no t
have to be disco nne cte d fir st. T he bat tery
caps should
not be opened when charg ing a
batte ry .
It is no t necessa ry to remove the b attery from
the luggage compartmen t.
Fast charging the battery (charging rate
above 14 .8 Volts)
Fo r tec hni cal re asons do not use a bat tery
c h arger th at uses voltage g reater than
1 4 .8
Volts to c harge yo ur veh icle's battery.
A WARNING
C harging a battery can be dangero us.
-A lways follow t he operati ng instr uctions
provided by the battery charger manu ­
facturer when charging your battery .
- Never cha rge a fro zen battery. It may ex ­
p lode because of gas trapped in the ice .
A llow a frozen battery to thaw out f irst.
- Do not reuse batteries wh ic h were fro­
zen. The battery housing may have
cracked and weakened w hen the battery
froze.
- Charge the battery in a well venti lated
area . Keep away from open flame or elec­
trical spark. Do not smoke . Hydrogen gas
generated by t he battery is explos ive . ..,

220 Check ing and filling
- To r educe the danger of explosion, never
co nnect or disconn ect cha rger cables
wh ile the c harger is operating.
- Fast char ging a battery is dangerous and
shou ld on ly be attempted by a compe­
tent technician w ith the proper equip­
ment .
- Battery acid that may spill d uring charg­
ing should be washed
off with a solution
of warm water and baking soda to neu ­
tralize the acid.
(Q) Note
Never use a fast charger as a booster to
start the engine . This will seriously dam­
age sensitive electronic components, such
as control units, relays, rad io, etc., as we ll
as the battery charger.
Battery replacement
The new battery must have the same specif/·
cations and dimensions as the original equip­
ment battery.
In tell igent energy management in your veh i­
cle is respons ible for d istributing the e lectr i­
cal energy throughout you r vehicle
~ page 185. The intell igen t energy m anage­
men t system w ill keep the engine ba tte ry
charged better then vehicles w ithout this sys­
tem . To make sure the additional e lectrica l en­
ergy is available once again after you have
changed the battery, we recommend that you install batteries o f the same type and ma nu­
facture only (the same as those installed at
the time your vehicle was delivered). Specifi­
cations are listed on the battery hous ing. You r
author ized Audi dealer must code the battery
in the ene rgy managemen t system to enable
you to use the ene rgy management functions
correctly after replac ing the battery.
I f it is not poss ible to use a battery of this
type, the new bat tery m ust h ave the s ame ca­
pac ity, voltage ( 12-volts), amperage, con ­
struction and plug sea ling. When installing the battery, make su
re the ig ­
nition and a ll electrical consumers are turned
off.
(D Note
Make sure the ventilat ion hose on the side
of the battery is connected, otherwise
fumes or battery acid can leak out .
@ For the sake of the environment
Because o f the p rob lem of p roper disposal
of a battery, we recommend your author ­
i zed Audi dealer change the battery fo r
you. Batteries contain sulfur ic acid and
l ead and must always be disposed of prop­
erly in comp liance with all environmental
regula tions. Dispos ing of veh icle batter ies
i mprope rly is very dange rous to the envi­
r o nment .
Windshield/headlight*
washer container
Fig. 181 En gin e compa rt m en t: Cove r on the w ind·
s h iel d a nd h eadligh t• was he r fl uid conta in er
.., N
-~ (X) a,
The washer fluid conta iner is marked w ith the
symbol
O on its cap~ fig. 181, ~ page 208,
fig . 175.
.. Before yo u check any thing in the engine
compa rtment,
always read and heed all
WARNINGS q A in Working in the engine
compartment on page 206 .
.. Lift the fi ller cap tongue to add washer flu­
id. You can f ill the container to the top.
.. Press the cap back onto the filler neck after
fi lling the conta iner .
You can find the reservo ir
capacity in the table
in
q page 262. .,.

Clean water sho uld be used when fill ing up. If
possible, use soft water to prevent scaling on
the washer jets. Always add a glass cleaner
solut ion (with frost protection in the w inter).
(D Note
Do not mix engine coo lant antifreeze or
any other add itives to fi ll u p the w ind­
shie ld washer reserv oir.
Checkin g and fillin g 221
•
•

24 4 What do I do no w?
There are some restrictions on the use of the
compact spare tire. The compact spare tire
has been des igned specifically for your type of
vehicle.
It must not be swapped with a com­
pact spare tire from another type of vehicle.
Sno w cha in s
For technical reasons, the use of snow chains
on the compact spare tire is
n ot permitted .
If you do have to dr ive with snow cha ins and a
front tire fails, mount the spare wheel w ith
tire instead of a rear tire. Install the snow
chains on the rear tire and use it to rep lace
the defective front tire.
A WARNING
- Never use the spare tire if it is damaged
or if it is worn down to the tread wear in­
dicators.
- If the spare tire is more than 6 years o ld,
use it only in an emergency and w ith ex­
t reme caution and careful driving.
- The spare tire is intended only for tem­
porary and short-term use. It should be
replaced as soon as possib le w ith the
normal wheel and t ire.
- After mounting the compact spare tire, the tire pressu re must be checked as
soon as poss ible. The tire pressure of the
c ompac t spare tire must be 4.2 bar; oth­
erwise, you risk hav ing an accident.
- Do not drive faster than 50 mph (80 km/
h). You risk having an acc ident.
- Avoid full-throttle acce le rat ion, heavy
braking, and fast corner ing . Yo u risk hav­
ing an acc iden t.
- Never drive us ing more than one spare
wheel and tire. You risk having an acci­
dent.
- No rma l summer or winte r tires m ust not
be mounted on the compact spare whee l
rim.
- F or te chni cal reasons, the use of ti re
chains on the spare tire is not permitte d.
If it is necessary to drive with tire chains,
the spare whee l must be mounted on the
front axle in the event o f a f lat in a rear tire. The new
ly available front wheel
must then be installed in place of the
rear whee l with the flat tire. Installing
the t ire cha in before mounting the whee l
and tire is recommended .
- Loose items in the passenger compart­
ment can cause serious personal injury
during hard brak ing or in an accident.
Never store the spa re tire or jack and
too ls in the passenger compa rtment.
Changing a wheel
Before changing a wheel
Observe the following precautions for your
own and your passenger's safety when chang­
ing a wheel .
"'After you expe rience a tire failure, pull the
car we ll away from moving traffic and try to
reach
le vel ground before you stop ¢ ,&.
"'All passengers should leave the car and
move to a safe location (for instance, behind
the guardrail)¢ &,.
"' Engage the
parking brake to p revent your
veh icle from rolling unintentionally¢&, .
"' Move the
selec tor lever to the P positi on.
"'I f you are towing a t railer : unhitch t he trai l­
er from you r vehicle.
"' Take the
jack ¢ page 243 and the spare tire
¢ page 243 out of the luggage compart­
ment .
A WARNING
=
You or your passengers could be injured
while changing a wheel if you do not fo l­
l ow these safety precaut ions :
- If you have a flat tire, move a safe dis­
tance off the road . Turn off the engine ,
turn the eme rgency flashers on and use
other warning devices to a le rt other mo­
torists.
- Make sure that passengers wait in a safe
place away from th e vehicle and well
away from the road and traffi c.
- To help prevent the vehicle from moving
-
suddenly a nd possib ly slipping off the ..,_

Emergency situations
General
This chapter is intended for trained emer­
gency crews and working personnel who have the necessary tools and equipment to
perform these operations.
Starting by pushing or
towing
(D Note
Vehicles with an automatic transmission
cannot be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine can be started by
connecting it to the battery of another vehi­
cle.
If the engine should fail to start because of a
discharged or weak battery, the battery can be
connected to the battery of
another vehicle,
using a
pair of jumper cables to start the en­
gine.
Jumper cables
Use only jumper cables of sufficiently
largecross section to carry the starter current
safely. Refer to the manufacturer's specifica­
tions.
Use only jumper cables with
insulated termi­
nal clamps which are distinctly marked:
plus(+) cable in most cases colored red
minus(-) cable
in most cases colored black .
A WARNING
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal
injury. Follow the instructions below for
safe handling of your vehicle's battery.
- Always shield your eyes and avoid lean­
ing over the battery whenever possible.
Emergency situations 255
-A discharged battery can freeze at tem­
peratures just below 32 °F (0 °C). Before
connecting a jumper cable, you must
thaw the frozen battery completely, oth­
erwise it could explode.
- Do not allow battery acid to contact eyes
or skin . Flush any contacted area with
water immediately .
- Improper use of a booster battery to
start a vehicle may cause an explosion.
- Vehicle batteries generate explosive gas­
es. Keep sparks, flame and lighted ciga­
rettes away from batteries.
- Do not try to jump start any vehicle with
a low acid level in the battery.
- The voltage of the booster battery must
also have a 12-Volt rating. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged bat­
tery. Use of batteries of different voltage
or substantially different "Ah" rating
may cause an explosion and personal in­
jury.
- Never charge a frozen battery. Gas trap­
ped in the ice may cause an explosion.
- Never charge or use a battery that has
been frozen. The battery case may have
be weakened.
- Use of batteries of different voltage or
substantially different capacity (Ah) rat­
ing may cause an explosion and injury.
The ca pa city (Ah) of the booster battery
should not be lower than that of the dis­
charged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS¢
page 206.
(D Note
- Applying a higher voltage booster bat­
tery will cause expensive damage to sen­
sitive electronic components, such as
control units, relays, radio, etc.
- There must be no electrical contact be­ tween the vehicles as otherwise current
could already start to flow as soon as the
positive(+) terminals are connected. ..,. •
•

-Jumper cables must be long enough so
that the vehicles do not t ouch.
- W hen connecting jumper ca bles, make
sure that they cannot get caught in any
moving parts in the eng ine compart­
ment.
- Do not bend over the batteries - danger
of chemical burns!
- The battery ce ll locking screws must be
t ightened securely .
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS ¢
page 206.
Improper hook-up of jumper cables can ru­
in the generator.
- Always connect POSITIVE( +) to POSI ­
TIVE(+), and NEGATIVE( -) to NEGATIVE
( - ) ground post of the battery manager
control unit.
- Check that all screw plugs on the battery
ce lls are screwed in firmly . If not, tighten
plugs p rior to connecting clamp on nega­
tive battery terminal.
- Please note that the procedure for con­
necting a jumper cable as described
above applies spec ifically to the case of
your vehicle be ing jump started. When
you are givi ng a jump start to another ve­
hicle, do
not connect the negat ive( -) ca­
ble to the negat ive( -) term inal on the
discharged battery @¢
fig. 20 2. In­
stead, securely connect the negative(- )
cable to e ither a solid metal component
that is firmly bolted to the engine block
or to the engine block itse lf. If the bat­
tery that is being charged does not vent
to the outside, escaping battery gas
could ignite and explode!
Em erg en cy si tuation s 257
Emergency towing
with commercial tow
truck
General hints
Your Audi requires special handling for tow­
ing.
T he following information is to be used by
commercial tow t ruck operators who know
how to operate their equipment safely.
- Never tow your Audi , towing will cause
damage to the engine a nd transmi ssion.
- Never wrap th e safet y chain s or winch c a­
ble s around th e brak e lin es.
- To prevent unne ce ss ary dam age, your Aud i
mu st be t ransp orted with a flat bed truck .
- To load th e vehi cle on to the fl at bed , use
the t owing loop found in the vehicle t ool s
and atta ch to the front or rear anch o rage
r=:> page 258 and ¢page 258 .
A WARNING
A vehicle being towed is not safe for pas­
sengers. Never allow anyone to ride in a
vehicle be ing towed, for any reason.
-
•
•

260 Emergency situations
fall from a lift if there is a change in ve­
hicle weight distribution and balance.
This might happen, for example, when
heavy components such as the engine
block or transmission are removed .
- When removing heavy components like
these, anchor vehicle to hoist or add cor­
responding weights to maintain the cen­
ter of gravity. Otherwise, the vehicle
might tilt or slip off the hoist, causing
serious personal injury.
(D Note
- Be aware of the following points before
lifting the vehicle:
-The vehicle should never be lifted or
jacked up from underneath the engine
oil pan, the transmission housing, the
front or rear axle or the body side
members. This could lead to serious
damage.
- To avoid damage to the underbody or
chassis frame, a rubber pad must be
inserted between the floor jack and
the lift points.
- Before driving over a workshop hoist,
check that the vehicle weight does not
exceed the permissible lifting capacity
of the hoist.
- Before driving over a workshop hoist,
ensure that there is sufficient clear­
ance between the hoist and low parts
of the vehicle.

Technical Data
Vehicle identification
F ig. 210 Veh ide Identificat ion Number (VlN) plate: lo ·
c ation on d river 's s ide das h pane l
XXXXX XX · X -XXXX XXX
~ fAllftlli. -llllll · NR. ~ W!ru -IIOO -NO.
xx
XXXX XXXX XX X XXXXXXXX
XXX XXX
IYP /TYPE
XX XXXXXXX XX X X XX
XXX KW XXX
®i ~W.::·f :l~~ XXXX XXX XXX
©+ ::rw= xxxx I xxxx XXX I xx
M. · AUSSt I IJ'IIDIIS
~--
EOA 7D 5 4UB 6XM SSG SRW
2E H JDZ 1LB lA S 1BA
3FC SMU 7X l
FD A 9G3 OG7 OYH OJF
TL6 3 KA 8EH UlA X98 027
lXW 803 908 824
D2D
7T6 CV7 7KO 4X3 2K2
3L4 4KC 3YO 413
50 2
1S A 7GB QlA 4GO
XX. X XX X XX X XXXX
Fig. 211
The vehicle identification label: ins ide the lu g·
ga ge compar tmen t
Vehicle Identification Number (VlN)
The Veh icle Iden tifica tion Number is located
in different p laces :
- under the windshield on the driver's side
9fig.
210.
- in the radio or in the MM!*: Select: ICARI
function button > Vehicle ID number (VIN)
or select: I CAR I function button> Car sys­
tems*
control button > Servicing & checks >
VIN number .
-on the vehicle identification label. Technical Data 261
Vehicle identification label
The
vehicle identification label is located in
the luggage compartment near the battery.
T he label 9fig.
211 shows the follow ing vehi­
cle data :
(D Vehicle Identificat ion Number (VIN)
@ Vehicle type, engine output, transm ission
@ Engine and transmission code
© Paint number and interior
® Optional equipment numbers
T he information of the vehicle identification
label can also be found in your Warranty
&
Maintenance booklet.
Safety compliance sticker
The safety compliance sticker is your assur­
ance that your new vehicle complies with all
applicable Federal Motor Vehicle Safety
Standards which were in effect at the time the
vehicle was manufactured . You can find this
sticker on the door jamb on the driver's side.
It shows the month and year of production
and the vehicle identification number of your
vehicle (perforation) as well as the Gross Vehi­
cle Weight Rating (GVWR) and the Gross Ax le
Weight Rating (GAWR) .
High voltage warning label
The high voltage warning label is located in
the engine compartment next to the engine hood release. The spark ign ition system com­
plies 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
door jamb on the driver's s ide .
The Gross Vehicle Weight Rating includes the
weight of the basic vehicle plus full fuel tank,
oil and coo lan t, plus maximum load , which in­
cludes passenger we ight (150 lbs/68 kg per
designated seating position) and luggage
weight
9 ,&. .