2018 AUDI A5 COUPE brake

Pedal area
Pedals
The pedals must always be free to move and
must never be interfered with by a floor mat or
any other object.
Make sure that all pedals move freely without in­
terference and that noth ing prevents them from
returning to their original positions .
Only use floor mats that leave the pedal area free
and can be secured with floor mat fasteners.
If a brake circuit fails, increased brake pedal trav­
e l is required to bring the vehicle to a full stop.
A WARNING
Pedals that cannot move freely can cause loss
of vehicle control and increase the risk of seri­
ous injury.
- Never place any objects in the driver's foot­
well. An object could get into the pedal area and interfere w ith pedal function. In case of
sudden braking or an accident, you would not be ab le to brake or accelerate!
-Always make sure that nothing can fall or move into the dr iver's footwe ll.
Floor mats on the driver side
Always use floor mats that can be securely at­
tached to the floor mat fasteners and do not in­terfere with the free movement of the pedals .
... Make sure that the floor mats are properly se­
cured and cannot move and interfere with the
pedals
Q .&_ .
Use only floor mats that leave the pedal area un­
obstructed and that are firmly secured so that
they cannot slip out of pos it ion . You can obtain
suitable floor mats from your authorized Audi
dealer.
Floor mat fasteners are installed in your Audi .
Fl oor mats used in your vehicle must be attached
to these fasteners. Properly securing the floor mats will prevent them from sliding into posi-
Driving safety
tions that could interfere with the pedals or im­
pair safe operation of your vehicle in other ways.
.&_ WARNING
-
Pedals that cannot move freely can res ult in a
l oss of vehicle control and increase the risk of
serious personal injury.
-Always make sure that floor mats are prop­
erly secured.
- Never p lace or install floor mats or other
f loor coverings in the vehicle that cannot be
proper ly secured in place to prevent them
from slipping and interfer ing with the ped­
als o r the ab ility to control the vehicle.
- Never p lace or install floor mats or other
f loor cove rings on top of already installed
floor mats . Additional floor mats and other
cover ings will reduce t he si ze of the pedal
a rea and in terfere with the pedals.
- Always p roperly re insta ll and secure floor
mats that have been take n out fo r clean ing .
- Always make sure that objects cannot fall
into the d river footwell whi le the vehicle is
mov ing. Objec ts can become trapped under
the brake pedal and accelerator pedal caus­
ing a loss of vehicle control.
Storing cargo correctly
Loading the luggage compartment
All luggage and other objects must be properly stowed and secured in the luggage compart­
ment.
F ig. 230 Safe load positio ning: place heavy objects as low
a n d as far forward as poss ible.
IJI,-
263

Check ing and F illing
Engine compartment
Working in the engine compartment
Special care is required if you are working in the
engine compartment
Fo r wo rk in th e engine compa rtmen t, s uch as
c h ec kin g and filli ng flu id s, th ere is a risk of in­
j u ry, sc aldin g, ac cide nts, a nd b urn s. For this
rea son, foll ow all the warning s and gener al
s a fe ty p recaution s pr ov ided in the f ollow ing in·
f o rm ation . Th e en gine c omp artmen t is a dan ­
ger ous are a.
q ,&.
_& WARNING
- T urn the engine off.
- Switch the ign ition off .
- Set the parking brake .
- Shift the gearshift lever to neutral in vehicles with a manual transm ission and se­
lect the P selecto r lever pos ition in vehicles
with an automatic transmission.
- Let the engine coo l down .
- Never open the hood when there is steam or coolant escaping from the eng ine compart­
ment, because there is a risk that you cou ld
be burned. Wait until no steam or coolant is
escaping.
- Keep ch ildren away from the engine com­
partment.
- Never spill f lu ids on a hot engine. These flu­
ids (such as the anti-freezing agent con­
ta ined in the coolant) can ignite .
- Avoid sho rt circu its in the electrical system.
- Whe n working in the engine compartment ,
remember that the rad iator fan can sw itch
on even if the ign ition is switched off, which
increases the risk of in jury.
- Never open the cap on the coolant expan­
sion tank when the eng ine is warm. The
cooling system is under pressure.
- T o protect your face, hands, and arms from
hot steam or coolant, cove r the cap with a
large cloth when opening .
- Do not remove the engine cover under any
c ircumstances. This increases the risk of
burns .
330
-If tests need to be performed with the en­
gine running, there is add itiona l danger due
to mov ing components (such as the r ibbed
belt, alternator and rad iator fan) and from
the high-voltage ignition system .
- Do not under any circumstances activate the
throttle inadvertently (for example, by hand
from the engine compartment) if the veh i­
cle is stat ionary but the eng ine is r unning
and a gear is engaged. Otherwise, the veh i­
cle will start to move immediately and this
could result in an acc ident.
- Pay attent ion to the following warnings
when work on the fue l system is required :
- Do not smoke.
- Never work near open flames.
-Always have a working fire extinguisher
nearby .
-All work on the battery or electrical system
in your vehicle can result in inju ries, chemi­
cal b urns, acc idents or burns. Because of
this, all work must be performed
onl y by an
author iz ed Audi dealer or authori zed Audi
Serv ice Facili ty .
-To reduce the r isk of e lectr ic shock and in­
jury, never touch the follow ing components
when the engine is running or is being start­ ed:
- Ign ition cable
- Other components in the electronic high- vo ltage ign ition system
- If you must che ck or perform wo rk on the
engine whi le it is running:
-First, set the parking brake and and move
the gearshift lever to neutral (for manual
transm issions) or select the P selector lev­
er posit ion (for automatic transm issions) .
- Always proceed with extreme caution so
that clothing, jewelry or long hair do not become caught in the rad iator fan, fan
belt or other moving components or do
not come into contact with hot compo­
nents. Tie bac k long hair befo re beginn ing
work and do not wear clothing that can
hang down into the engine.
-Lim it yo ur exposure to exhaust and chemi­
cals to as short a time as possible
q .&. .

Checking and Filling
-If the hood is not latched completely, it
could fly up while you are driving and ob­
struct your vision.
Engine compartment overview
The most important check points.
Fig. 276 Typ ical location of the reservoir and the engine o il filler o penin g
@ Washer fluid reservoir (W) c:> page 339
@ Jump start po int( +) under a cover,(-) w ith
hex head sc rew
c:> page 339 c:> page 381
@ Engine oil filling open ing ( page 334
© Eng ine oil label* w ith VW standard
c:> page332
® Coolant expansion tank (- L) c:> page 336
® Brake fluid reservoir ((0)) c:> page 33 7
The location of the engine oil fill ing opening and
the coolant expansion tank
c:> fig. 2 76 (items @
and@) may differ depending on the engine ver­
sion .
332
8,_ WARNING
Read and follow all WARNINGS befo re check­
ing anything in the engine compartment
c:>page330.
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci ­
fications.
The serv ice interval d isplay i n the instrumen t
clus ter o f your veh icle will inform you when it is
time for an o il change . We recommend that you
have your oi l changed by an author ized Audi Serv-
ice Advisor.
..,_

.. Place a cloth over the coolant expansion tank
cap .
.. Push the release button ¢ fig. 2 78 and careful­
ly unscrew the cap to the left until you feel re­
sistance¢ &_ .
.. Push the release button again and remove the
cap completely .
.. Make sure that the fluid level remains stable .
Add more coolant if necessary .
.,. Turn the cap to the right to secure it until yo u
feel resistance a second time.
Coolant loss usually indicates there is a leak . Im­
mediately drive your vehicle to an authorized
Audi dealer or authorized Aud i Serv ice Facility
and have the cooling system inspected. If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheating
and being pushed out of the cooling system.
A WARNING
- The cooling system is under pressure. Do
not open the coolant expansion tank cap
when the engine is hot. This increases the
risk of burns .
-The coolant additive and the coolant can be
dangerous to your health . For this reason,
keep the coolant in the original container
and away from children. There is a risk of
poisoning.
-When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
CD Note
Do not add coolant if the expansion tank is
empty. There may be air i n the cooling sys­
tem, which increases the risk of engine dam­
age . If this is the case, do not continue driv­
ing . See an authorized Audi dea ler or author­
ized Aud i Service Facility for assistance.
Checking and Filling
Brake fluid
Fig. 279 E ng in e compartment : cap on brake fluid reservo ir
Observe the safety precautions ¢&. in Working
in the engine compartment on page 330 .
Checking the brake fluid level
... Read the brake fluid level on the brake fluid
reservoir¢ page 332, fig . 276 . The brake fluid
level must be between the MIN and MAX mark­
ings¢_.&. .
The brake fluid level is monitored automatically.
Changing the brake fluid
Have the brake fluid changed regularly by an au­
thorized Audi dealer or authorized Audi Service Facility.
A WARNING
- If the brake flu id level is below the MIN
marking, it can impair the brak ing effect
and driving safety, wh ich increase the risk of
an accident. Do not continue dr iving . See an
authorized Audi dealer or authorized Audi
Serv ice Facility for assistance.
-If the brake fluid is old, bubbles may form
in the brake system dur ing heavy braking.
This would impair braking performance and
driving safety, which increases the risk of an
accident.
-To ensure the brake system functions cor­
rectly, only use brake fluids that comp ly
with VW standard 501 14 or FMVSS-116 DOT 4.
CD Note
-If the brake flu id l eve l is above the MAX
marking, brake fluid may leak out over the
337

® 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¢ page 359.
@ Running direction
T he arrows indicate the running
direction of unidirectional tires.
You must always follow the speci­
fied running direction
¢page 374.
~ 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.
...
3 4 3

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,
roof rack , heavy d uty ba tte ry , 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 ¢ page 34 4, Cold tire infla­
tion pressure .
Reinforced tire
means a tire designed to operate
at higher loads and at higher in ­
fl at ion pressures than the corre­
sponding standard tire. Rein­
forced tires may be identified as
"X L", "x l", "EXTRA LOA D", or "RF"
on the s idewa ll.
..,
3 45

&_ WARNING
"
-Do not use steel rims that are
17 inches or larger. Other­
wise, 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 abso­
lutely necessary and drive
carefully when doing so.
-Do not use run-flat tires on
your vehicle. Using them when
not permitted can lead to ve­
hicle damage or accidents.
Wheels
-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.
Tire wear/damage
Fig. 283 T ire profile: treadwear indica­
tor
Tire wear
Check the tires regularly for wear.
-Inflat ion 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
..
349

Wheels
A 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
-
includ ing 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.
Determining correct load
limit
Use the example below to calcu­
late the total weight of the pas -
356
sengers and luggage or other
things that you plan to transport so that you can make sure that
your vehicle will not be overload­
ed.
Steps for Determining Correct Load Limit
1. Locat e the statement "THE
COMBINED WEIGHT OF OCCU­
PANTS AND CARGO SHOULD
NEVER EXCEED XXX KG OR XXX
LBS" on your vehicle's placard
(tire inflation pressure label)
Q page 351, fig. 285.
2.
Determine the combined
weight of the driver and pas­
sengers that will be riding in
your vehicle.
3. Subtract the combined weight
of the driver and passengers
from
"XXX" kilograms or "XXX"
pounds shown on the stick­
erQ page 351, fig. 285.
4. The resulting figure equals the
available amount of cargo and luggage load capacity. For ex­
ample, if the "XXX" amount
equals 1400 lbs . and there will
be five 150 lbs. passengers in
your vehicle, the amount of
available cargo and luggage load capacity is 650 lbs.
.,.