2017 AUDI A5 CABRIOLET brake

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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

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® Mud and snow capability
"M/5" or "M+S" indicates the tire
is suitable for driving on mud and
snow. £ indicates a winter tire.
@Composition of the tire cord
and materials
The number of plies indicates the
number of rubberized fabric lay­
ers in the tire . In general: the
more layers, the more weight a
tire can carry. Tire manufacturers
must also specify the materials
used in the ti re . These inc lude
stee l, nylon, polyester and other
materials.
@ Maximum permitted load
This number indicates the maxi­
mum load in kilograms and
pounds that the tire can carry.
@ Un iform tire quality grade
standards for treadwear,
traction and temperature resistance
Treadwear, traction and tempera ­
ture ranges
c:::> page 224.
@ Running direction
T he arrows indicate the running
direction of unidirectional tires.
You must always follow the speci­
fied running direction
c:::>page 233 .
~ Maximum permitted
inflation pressure
Wheels
T his number indicates the maxi­
mum pressure to which a tire can
be inflated under normal operat ­
ing condit ions .
Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto­ matic t ransmission, power steer ­
ing, power brakes, power win­
dows , powe r seats, radio, and
heater, to the extent tha t these
items are avai lab le as factory- in­
stalled equipment (whether in­
s t alled or not).
Aspect ratio
means the ratio of the height to
the w idth of the tire in percent.
Numbers of 55 or lower indicate a
low sidewall for improved steer­
ing response and better overall
handling on dry pavement .
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinfo rced by ply cords and that is
shaped to fit the rim. ...
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Maximum (permissible )
inflat ion pressure
means the maximum cold infla­
tion pressure to wh ich a t ire may
be inflated . Also called "maxi ­
mum inflation pressure ."
Normal occupant weight
means 150 lbs . (68 kilograms)
times the numbe r of occupants
seated in the veh icle up to the to­
tal seating capacity of your vehi­
c le .
Occupant distribution
means distribution of occupants
in a vehicle .
Outer diameter
means the overall diameter of an
inflated new tire .
Overall width
means the linear dis ta n ce be­
tween the exteriors of the side ­
walls of an inflated tire, inc luding
e levations due to labeling, deco­
rations, or protect ive bands or
ribs.
Ply
means a layer of rubber-coated
parallel cords .
Wheels
Production options weight
means the combined weight of
those installed regular production
options weighing over 5 lbs. (2.3 kg) in excess of those standard
items which they replace, not pre­
viously considered in curb weight
or accessory weight , including
heavy duty brakes, ride levelers,
heavy duty battery, and special
trim .
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the
beads are laid at substantia lly 90
degrees to the centerline of the
tread .
Recommended inflation
pressure
see c:::> page 210, Cold tire infla­
tion pressure .
Reinforced tire
means a tire designed to operate
at higher loads and at higher in ­
fl ation pressures than the corre­
sponding standard tire. Rein­
forced tires may be iden tified as
"X L" "x l" "EXTRA LOA D" or "RF"
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on the sidewa ll. ..,
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Audi. Otherwise, damage to the vehicle and an accident
could result.
-For technical reasons, it is not
possible to use tires from oth­
er vehicles -in some cases,
you cannot even use tires from the same vehicle model.
-Make sure that the tires you
select have enough clearance
to the vehicle. Replacement
tires should not be chosen
simply based on the nominal
size, because tires with a dif­
ferent construction can differ
greatly even if they are the
same size. If there is not
enough clearance, the tires or
the vehicle can be damaged
and this can reduce driving
safety and increase the risk of
an accident.
-Only use tires that are more than six years old when abso­lutely necessary and drive
carefully when doing so.
-If you install wheel covers on
the vehicle, make sure they al­ low enough air circulation to
cool the brake system. If they
do not, this could increase the risk of an accident.
Wheels
Tire wear/damage
Fig. 179 Tire profi le: treadwear indica­
tor
Tire wear
Check the tires regularly for wear.
-Inflation pressure that is too low or high can increase tire wear
considerably.
-Driving quickly through curves,
rapid acceleration and heavy
braking increase tire wear .
-Have an authorized Audi dealer
or authorized Audi Service Facili­
ty check the wheel alignment if
there is unusual wear.
-Have the wheels rebalanced if an
imbalance is causing noticeable
vibration in the steering wheel. If you do not, the tires and other
vehicle components could wear
more quickly.
Treadwear indicator
Original equipment tires contain
treadwear indicators in the tread pattern, which are bars that are
215
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Wheels
passengers that the vehicle is in­
tended to carry ("seating capaci­
ty") with an assumed weight of 1 SO lbs. (68 kg) for each passen­
ger at a designated seating posi­
tion and the total weight of any
luggage in the vehicle. If you tow
a trailer, the weight of the trailer hitch and the tongue weight of
the loaded trailer must be includ­
ed as part of the vehicle load.
The
Gross Axle Weight Rating
("GAWR") is the maximum load
that can be applied at each of the
vehicle's two axles.
The fact that there is an upper limit to your vehicle's Gross Vehi­
cle Weight Rating means that the
total weight of whatever is being
carried in the vehicle (including
the weight of a trailer hitch and
the tongue weight of the loaded
trailer) is limited. The more pas­
sengers in the vehicle or passen­
gers who are heavier than the
standard weights assumed mean
that less weight can be carried as luggage.
The Gross Vehicle Weight Rating
and the Gross Axle Weight Rating
are listed on the safety compli­
ance sticker label located on the
220
driver's side B-pillar ¢ page 217,
fig. 180.
~ WARNING
Overloading a vehicle can cause
loss of vehicle control, a crash
or other accident, serious per­
sonal injury, and even death.
-Carrying more weight than your vehicle was designed to carry will prevent the vehicle
from handling properly and
increase the risk of the loss of
vehicle control.
-The brakes on a vehicle that has been overloaded may not
be able to stop the vehicle
within a safe distance.
-Tires on a vehicle that has been overloaded can fail sud­
denly, including a blowout and
sudden deflation, causing loss
of control and a crash.
-Always make sure that the to­ tal load being transported -including the weight of a trail­
er hitch and the tongue
weight of a loaded trailer -
does not make the vehicle
heavier than the vehicle's
Gross Vehicle Weight Rating.

Emerg enc y assis ta nc e
Using th e spa re tire (co mpact sp are tire)
The compact spare tire is only intended for emer­
genc ies until you can reach a repair shop. Repla ce
it as qu ickly as possible with a standard wheel
and tir e.
There are some restrictions on the use of the
compact spare tire . The compact spare tire has
been designed specifically for yo ur type of vehi­
cle. It must not be swapped with a compact
spare tire from another type of vehicle.
Snow chain s
For technica l reasons, the use of snow chains on
the compact spare tire is
not p ermitt ed .
If you do have to dr ive with snow cha ins and a
front tire fails , mo unt the spare wheel with t ire
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 indicators.
- If the spare tire is more than 6 years o ld,
use it only in an emergency and with ex­
treme caution and carefu l dr iving .
- The spare tire is intended on ly for tempora­
ry and short-term use. It shou ld be replaced
as soon as possible with the normal wheel
and t ire .
- After mounting the compact spare t ire, the
t ire pressure must be checked as soon as
poss ible. The tire pressure of the compact
spare tire m ust be 4.2 bar; otherwise, you
risk having an accident .
- Do not drive faster than SO mph (80 km/h) .
You risk hav ing an accident.
- Avoid full-throttle accelerat ion, heavy brak­
ing, and fast cornering. You risk having an
acc ident.
- Never dr ive using more than one spare
wheel and tire . You risk having an acc ident .
- Normal summer or winter tires must not be mounted on the compact spare wheel rim .
- For technical reasons, the use of tire chains
on the spare tire is not perm itted . If it is
228
necessary to drive with tire chains, the spare
wheel must be mounted on the front axle in
the event of a flat in a rear tire. The newly
ava ilable front wheel must then be installed
in place of the rear wheel w ith the flat tire.
Installing the tire chain before mounting
the wheel and tire is recommended.
- Loose items in the passenger compartment can cause serious personal injury during
ha rd braking or in an accident. Never store
the spare tire or jack and tools in the pas­
senger compartment.
Replacing wheels
· Before changing a wheel
Observe the following precautions for your own
and your passenger's safety when changing a wheel.
.,. After you experience a tire failure, pull the car
well away from moving traffic and try to reach
lev el ground before you stop¢ A_.
.,. All passengers should le av e the car and move
to a safe location (for instance, behind the
guardrail) ¢
&_.
.,. Engage the parkin g brake to prevent your vehi­
cle from rolling unintentionally ¢
A_.
.,. Move the se lector lever to the P p osition.
.,. If you are towing a trai ler: unhitch the trailer
from your vehicle.
.,. Take the
jack ¢ page 22 7 and the sp ar e ti re
¢ page 227 out of the luggage compartment.
A WARNING
You or your passengers could be injured while
changing a wheel if you do not follow these
safety precaut ions:
- If you have a flat tire, move a safe distance
off the road . Turn off the eng ine, turn the
emergency flashers on and use other warn­ ing dev ices to alert other motorists.
- Make sure that passengers wait in a safe
place away from the vehicle and well away
from the road and traff ic.
- To help prevent the veh icle from moving
suddenly a nd possibly slipping off the jac k,

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