2017 AUDI A5 CABRIOLET warning light

Checking and Filling
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a quick
glance.
Fig. 175 Engine compartment: Cover on the brake fluid
r eservoir
Before you check anything in the engine compart­
ment,
always read and heed all WARNINGS
¢ A in Working in the engine compartment on
page 193.
., Read the brake fluid level from the brake fluid
reservoir
<=> fig . 175, ¢page 195, fig . 171 . The
brake fluid level must be between the
" MIN"
and "MAX " markings.
The brake fluid reservoir is located at the rear
partition of the engine compartment on the left
side
¢ page 195.
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 , Canadian models: 1111)
will come on¢ page 13 . Do not continue to oper­
ate the vehicle . The complete brake system
should be thoroughly checked by an authorized
Aud i dealer or qualified workshop and the cause
corrected . If the brake fluid level is too low, the
brake warning/indicator light w ill illuminate.
Contact an author ized Audi dealer
immediately.
(D} Tips
The brake fluid reservoir is located under­
neath the cover.
202
Changing brake fluid
Have the brake fluid changed by an experienced
technician .
Brake fluid absorbs moisture from the air. If the
water content in the brake fluid is too high, cor­
rosion in the brake system may result after ape­
riod of time . The boiling po int of the brake fluid
will a lso decrease considerably and decrease
braking performance.
Therefore , the brake fluid must be changed
every
two years .
Always use new brake fluid which con­
forms to Feder-al Motor Vehicle Standard "FMVSS
116 DOT 4 ".
The brake fluid reservoir can be difficult to reach ,
therefore, we recommend that you have the
brake fluid changed by your author ized
Audi
dealer .
Your dealer has the correct tools, the
right brake fluid and the know-how to do this for
you.
A WARNING
- Brake fluid is poisonous. It must be stored
only in the closed original container out of
the reach of children!
- Brake fai lure can result from o ld or inappro­
priate brake fluid. Observe these precau­
tions:
- Use only brake fluid that meets SAE speci­
fi cation
J 1703 and conforms to Federal
Motor Veh icle Standard 116. Always check
with your authorized Audi dealer to make
sure you are using the correct brake f luid .
The correct type of brake f luid is also indi­
cated on the brake fluid reservoir.
- The brake fluid must be new . Heavy use of
the brakes can cause a vapor lock if the
brake fluid is left in the system too long .
This can seriously affect the efficiency of
the brakes as well as your safety. This
could result in an accident.
(D Note
Brake fluid will damage the paint of your vehi-
cle .
lilJJ,

a:,
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@ For the sake of the environment
Because of the problem of proper disposal of
brake fluid as we ll as the special toots re­
quired and the necessary expertise, we rec­
ommend that you have the brake fluid
changed by your authorized Audi dealer .
Battery
General information
Under normal operating conditions, the battery
in your Audi does not need any maintenance.
With
high outside temperatures or long daily
drives we recommend that you have the electro­
lyte level checked by an authorized Audi dealer or
qualified workshop. The electrolyte level should
also be checked each time the battery is charged
¢ page 205.
Have the battery checked when you take your ve­
hicle in for serv ice. You are well advised to re­
place a battery t hat is older than 5 years.
Disconnecting the battery terminals
Some vehicle functions (power window regula­
tors, for example) are lost if the battery termi­ nals are disconnected. These functions have to be
relearned after the battery terminals are con­
nected again. To prevent th is, the battery should
only be disco nnected from the vehicle e lectr ica l
system when abso lutely necessary for repairs.
Vehicles not driven for long periods
If you do not drive your vehicle over a period of
several days or weeks, electrical components are
gradually cut back or sw itched off. This reduces
energy consumption and maintains starting ca ­
pability over a longer period¢
page 173.
Some of the conven ience functions may not oper­
ate, such as the interior lights or the power seat
adjustment. The convenience functions will be
available again when you turn on the ignition and
start the engine.
Winter operation
During the winter months, battery capacity tends
to decrease as temperatures drop . T his is be-
Checking and Filling
cause more power is also consumed while start­
ing, and the headlights, rear window defogger,
etc., are used more often.
Avo id unnecessary power consumption, particu­
larly in city traff ic or when traveling only short
distances . Let your authorized Audi dealer check
the capacity of the vehicle battery before winter
sets in ¢
page 205. A well charged battery will
not only prevent starting problems when the
weather is cold, but will also last longer .
(D Tips
If your vehicle is left standing for several
weeks at extremely low temperatures, the ve­
hicle battery should be removed and stored
where it w ill not freeze. This will prevent it
from be ing damaged and having to be re­
placed.
Working on the battery
Be especially careful when working on or near
the battery.
The battery is located in the luggage compart­
ment under the floo r. Before you check anything
in the luggage compartment,
read and heed all
WARNINGS ¢
LD.·
Always heed the safety warnings, when working
on the vehicle battery or the veh icle electrical
system to prevent injury.
The following WARNINGS are very important
when working on the battery:
Always heed the following WARNING SYM·
BOLS and safety precautions when working on
the battery.
®
Always wear eye protection.
A
Battery acid contains sulfuric acid. Al·
ways wear gloves and eye protection .
@
No
- sparks
· flames
· smoking.
203

Checking and Filling
A
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 children.
A 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 fol­
lowing WARNINGS:
- Always wear eye protection. Do not let bat ­
tery 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 openings.
- If you get battery acid in your eyes or on
your skin, immediately rinse with cold wa­
ter for several minutes and get medical at­
tention .
- 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 nega-
tive cables .
- When working on the battery, be sure not to
short-circuit the terminals with tools or oth­
er metal objects. This would cause the bat­
tery to heat up very quickly, which could
lead to damage or explosion and personal
lnJUry.
- When a battery is charged, it produces hy­
drogen 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 negative ground cable.
- Before performing any work on the electri­
cal system, switch off the engine and igni­
tion as well as any electrical equipment. The
204
-
negative cable on the battery must be dis­
connected. If you are just going to replace a light bulb, then it is enough to switch off
the lights.
- Before disconnecting the battery, switch off
the anti-theft alarm system! Otherwise you
will set off the alarm .
- When disconnecting the battery, first dis­
connect 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 bat­
tery.
It could explode! If a battery has fro­
zen, 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.
A WARNING
California Proposition 65 Warning :
- Battery posts, terminals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive problems.
Wash hands after handling.
(D Note
- Do not disconnect the vehicle battery when
the ignition is switched on or when the en­
gine is running, otherwise, you will damage
electronic components in the electrical sys­
tem .
- 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 re­ placed .

Wheels
Check/correc t the p ress ures o f all four tires and
store the pressure again in the Infotainment sys­
tem
¢ page 226.
mm (Ti re Pressure Moni to ring System) Tire
pressure: S ystem malfunction !.
Ifm:im appears
afte r switc hing the ignition on or whi le driving
and the
RI] i ndicator light in the instrument cl us­
ter blinks for approximate ly one minute and then
stays on, there is system malfunction. Try to
store the correct tire pressures¢
page 226 . If
the ind icator light does tur n off or turns on again
after a short period of t ime, dr ive to an a uthor­
ized Audi dealer o r autho rized Aud i Service Faci li­
ty immedia tely to have the malfunct ion corre ct­
ed .
A WARNING
- If the ti re pressu re indicator appears in the
display, reduce your speed immediate ly and
avoid any hard steering or braking maneu­
vers. Stop as soon as possib le and check the
t ires and t heir pressure.
- The driver is responsib le for maintaining the
correct tire pressure. You must check the
t ire pressure regu larly .
- Under certain conditions (such as a sporty
dr iv ing style, winter cond itions or unpaved
roads), the tire pressure mo nitoring system
indicator may be delayed.
- Do not use run-flat tires on your vehicle. Us­
ing them when not permitted ca n lead to
vehicle damage or accidents.
(D Tips
- The t ire pressure monitoring system can al­
so stop work ing when there is an ESC mal­
funct io n.
- Using snow chains may result in a system
malfunction.
- The t ires with the identification "AO" or
"RO" ¢
page 214 have been matched with
your Audi tire pressure monitoring system .
We recommend that you use these t ires.
226
· Storing tire pressures
Applies to: vehicles with Tire Pressure Mon itor ing System
If the tire pressure changes or a tire is replaced,
it must be confirmed in the Infotainment sys­
tem .
.. Make sure before stor ing that the t ire pressures
of all four tires mee t the specified values and
are adapted to the load ¢
page 217 .
.. Switch the ignit io n on .
.. Sele ct: the
I CARI fu nct ion button > Tire pres­
s ure monitoring
cont rol button. O r
.. Select: the
I CAR I fun ct ion but ton > Car Sys­
tem s*
control b utton > Service & check s > Tire
pressure monitoring.
(D Tips
Do not store the tire pressures if snow chains
are installed .

always fully set the parking brake and block
the wheel diagonally opposite the wheel be­ ing changed with the folding chocks or oth­
er objects. When one front wheel is lifted
off the ground, placing the Automatic
Transmission in "P" (Park) will
not prevent
the vehicle from moving.
- Before you change a wheel, be sure the
ground is level and firm. If necessary, use a
sturdy board under the jack.
- Always store the vehicle tool kit, the jack*
and the replaced tire in the luggage com­
partment
r::!>page 116.
(D Note
If you are changing the wheel on a steep in­
cline, use a rock or similar object to block the
opposite wheel to prevent the vehicle from
moving.
(D Tips
Obey all laws.
Changing a wheel
When you change a wheel, follow the sequence
described below step-by-step and in exactly that
order.
1.
Remove the decorative wheel cover* or the
wheel bolt caps*. For more details see also
r::!> page 229, Decorative wheel covers or
r::!> page 230, Wheels with wheel bolt caps .
2. Loosen the wheel bolts~ page 230.
3. Locate the proper mounting point for the
jack and align the jack below that point
r::!> page 2 31.
4. lift the car with the jack r::!> page 231.
5. Remove the wheel with the flat tire and then
in stall the
spare tire r::::> page 232.
6. Tighten all wheel bolts lightly .
7 .
lower the vehicle with the jack.
8 . Use the wheel bolt wrench and
firmly tighten
all wheel bolts in a crisscross pattern
r::!> page 230.
~ 9. Replace the decorative wheel cover* or the ......
~ wheel bolt caps*. N ...... 0
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Emergency assistance
A WARNING
-Always read and follow all WARNINGS and in-
formation
r::!> .&. in Raising the vehicle on
page231
and r::::> page233.
After changing a wheel
A wheel change is not complete without the do­
ing the following.
.. Always store the vehicle tool kit, the jack*, and
the replaced tire in the luggage compartment
r::::>page 116.
.. Check the tire pressure of the spare tire as soon
as possible .
.. As soon as possible, have the
tightening tor­
ques
on all wheel bolts checked with a torque
wrench. The correct tightening torque is 90 ft
lbs .
(120 Nm).
.. Have the flat tire
replaced as soon as possible.
@ Tips
-If you notice that the wheel bolts are cor­
roded and difficult to turn while changing a
tire, they should be replaced before you
check the tightening torque.
- Drive at reduced speed until you have the tightening torques checked.
Decorative wheel covers
Applies to: vehicles wit h deco rative w heel covers
The decorative wheel covers must be removed
first to access the wheel bolts.
Fig. 18S C ha nging a wheel: removing the wheel cover
229

Raising the vehicle
The vehicle must be li~ed with the jack first be­
fore the wheel can be removed .
Fig. 188 S ill panels: markings
Fig. 189 Sill: posit ion ing th e vehicle jack
The location of the jack point is indicated by an
indentat ion on the underside of the vehicle
c::> fig. 188.
;:;; N 0 u. a, ID
~ Activate the parkin g brake to p reve nt the vehi­
cle from roll ing unintentionally.
~ Move the selector lever to position P.
~ Find the m ark in g (imprint) on the sill that is
nearest the wheel that will be changed
<=> fig . 188. Behind the marking, there is a lift­
i ng p oint on the sill for the vehicle jack .
~ Turn the ve hicle ja ck located under the lifting
po int on the s ill to ra ise the jack until the jaw
<=> fig. 189 @cove rs the n o tch on the vehicle
Q ,& c::>0 .
~ Align the vehicle jack so the jaw @covers the
notch and the base plate @ is flat on the floor.
The base plate @ must be
vertical under the
lifting point @.
~ Install the rod on the vehicle jack: Insert the
; rod into the opening on the handwheel. Turn
~ the rod left or right to secure it. N .... 0
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Emergen cy a ssis tanc e
~ Continue ra ising the jack with t he rod unti l the
wheel lifts off the ground slightly .
Pos ition the vehicle jack
only under the des igna t­
ed lift ing points on the sill
c::> fig. 188. There is ex­
actly
one l ocation for each wheel. The jack must
not be posit ioned at any ot her location
c::> &<=>CD .
Soft ground under the jack can cause the vehicle
to s lip off the jack. A lways p lace the jack on firm
ground . Use a f lat, stab le support if necessary .
Use a non-s lip surface such as a rubber mat on a
slipp ery s urface such as tile.
_& WARNING
--You or your passengers could be injured
while changing a wheel if you do not follow
these safety precautions:
- Position the vehicle jack only at t he des ig­
nated lifting points and align the jack .
Otherwise, the vehicle jack could slip and
cause an injury if it does not have suffi­
c ient hold on the vehicle.
- A soft or unstable surface under the jack
may cause the veh icle to slip off the jack.
Always provide a firm base for the jack on
the ground . If necessary, use a sturdy
board unde r the jack .
- On hard, slippery surface (such as t iles)
use a rubber mat or similar to prevent the
jack from slipping.
- To help prevent injury to yourse lf and your
passengers:
- Do no t raise the veh icle until you are sure
the jack is securely engaged.
- Passengers m ust not remai n in the vehicle
when it is jacked up.
- Make su re tha t passengers wait in a safe
place away from the vehicle and well away
from the road and traffic.
- Make s ure jack position is correct, adjus t
as necessary and t hen continue to raise
the jack .
(D Note
Do not lift the vehicle by the s ill. Pos ition the
vehicle j ack only at the des ignated lift ing
231

Fuses and bulbs
Fuses and bulbs
Fuses
Replacing a fuse
A fuse that hast blown will have metal strips
that have burned through .
Fig. 192 Left cockpit: fuse panel cover
The fuses are located at the front left and right
of the cockpit and behind the trim on the right
side of the luggage compartment.
• Switch the ignition and all electr ical equipment
off.
• Check the following table to see which fuse be­
longs to the equipment.
• Remove the appropriate cover.
• Remove the colored plastic clip from the fuse
panel, if necessary
¢page 234, fig. 193. You
can dispose of the plastic clip.
• Remove the clamp from the rear side of the
cover ¢fig.192.
• Remove the fuse using the clamp.
• Replace the blown fuse only with an identical
new one.
• Install the cover.
Fuse color identification
Color Current in
amps
Black 1
Purple 3
Light brown 5
Brown 7.5
Red 10
Blue 15
Yellow 20
White or transparent 25
234
Color Current in amps
Green 30
Orange 40
A WARNING
Do not repair fuses and never replace a blown
fuse with one that has a higher amp rating.
This can cause damage to the e lectrica l sys­
tem and a fire.
(D Note
If a new fuse burns out again after shortly
have you have installed it, have the electrical
system checked by your authorized Audi deal­
er.
(D Tips
- The following table does not list fuse loca­
tions that are not used.
- Some of the equipment items listed are op­
tional or only available on certain model configurations.
Left cockpit fuse assignment
Fig. 193 Left cockpit : fuse panel with plastic clip

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Fuse panel @ (black)
No . Consumer
1 Dynamic steering
2 Electronic Stabilization Cont rol (mod ule)
A/C system press ure sensor, elect rome -
chan ica l park ing brake , Homelink, auto-
3 mat
ic dimming interior rear v iew mirror,
air q uality/outside a ir sensor, Electronic
Stabili zation Cont rol (button)
5 Sound actuator
6 Headlight range control/
headlight (cor-
ne ring light)
7 Headlight (cornering light)
Con trol modules (e lectrom echan ica l par k-
8 ing brake, s hock ab so rbe r, q uattro s port),
DCDC converter
9 Adapt ive cru ise control
1 0 Shift ga te/clu tch se nsor
1 1 Side assist
12 Headlight range control
, p arkin g sys tem
13 Airbag
14 Rear wiper (a
llroad)
1 5 Auxiliary fuse (instrument panel)
1 6 Auxiliary fuse terminal 15 (engine area
)
Fuse panel@ (brown)
No . Consumer
2 Brake light senso r
3 Fuel pump
4 Clutch sensor
5
Left seat heating w it h /w it h out seat venti-
l a tion
6 Electronic Stabili zation Cont rol (e lectr ic)
7 Ho rn
8
Front left door (window regulator, central
locki ng, mirror, switch, lig hting)
9 Windshield wiper moto r
10 Electronic Stabilization Cont rol (va lves)
Fuses and bulbs
No . Consumer
Two-door mode ls: rear left w indow reg ula-
1 1 tor; Four-door mode
ls: rear left door (w in-
dow regu lator, central locking, switch,
li ght ing)
1 2 Rain and
light sensor
Fuse panel © (red)
No . Consumer
3 Lumbar support
4 Dynam ic steering
5 Inter
io r ligh ting ( Cabr io let)
6 W
indshie ld washer system, headlight
wash er system
7 Vehicle e lectrica l system control module 1
8 Ve hicl e e lec trica l sy stem con trol module 1
9
Left rear window regu lator motor (Cabr io-
l et)/s unroof
1 0 Vehicle e lec tric al system con trol module 1
1 1 R
ight rear window regulator (Cabriolet)/
su n shade motor
1 2 A
nti- theft alarm warning system
Right cockpit fuse assignment
Fig. 194 R ig h t cockp it : f use pane l wit h plast ic cl ip
235