brake rotor AUDI Q5 2015 Owners Manual

Smart Technolog y
Operating c ondit ion s and drivin g hab it s
The brakes on today 's automobi les are st ill sub­
ject to wear, depending largely on operating con­ ditions and driving habits¢.&. . On vehicles that
are either driven mostly in stop-and-go city traf­
f ic or are driven hard, the brake pads should be
checked by your authori zed Audi dealer more of­
ten than specified in the
Wa rra nty & Mainte­
n an ce boo kle t .
Fa ilure to have your brake pads
inspected can result in reduced brake perform­
ance.
On steep slopes, you should use the brak ing ef­
fect of the eng ine . Th is way, you prevent unnec ­
essary wear on the brake system. If you must use
your brakes, do not ho ld the brakes down contin­
uously. Pump the brakes at inte rva ls.
Operat ing no ise
Noises may occur when braking depending on the
speed, brak ing force and outside conditions such
as temperature and humid ity .
Effect of w ate r an d r oad sal t
In certain situations, for example after driving
through water, in heavy rain, after overn ight con­
densat ion or after washing your car, the braking
effect can be reduced by mo isture or ice on the
brake rotors and brake pads . The brakes must be
d ried first with a few carefu l brake applications.
At h igher speeds and with the w indshield wipers
turned on, the brake pads press against the brake rotors for a short amount of t ime . This occurs at
regular intervals without the d river noticing and
p rov ides for better brake response t ime unde r
wet conditions .
The effectiveness of the brakes can be reduced
when the vehicle is dr iven on a salt-covered road
a nd the brakes are not used . L ikew ise, you clean
off accumulated sa lt coating from brake discs
and pads with a few cautious applications of the brake ¢.&. .
Corros ion
There may be a tendency for dirt to bui ld up on
the brake pads and corros ion to fo rm on the discs
if the car is not driven regularly or on ly for short
trips with litt le use of the brakes.
194
If the brakes are not used frequently, or if corro­
sion has formed on the discs, it is advisable to clean off the pads and d iscs by braking firmly a
few times from a moderate ly high speed¢.&. .
Fault s in the brak e system
If you shou ld notice a sudden increase in bra ke
pedal travel, then one of the two brake circuits
may have failed
¢ .&. .
Lo w b rake fluid l evel
Malfunctions can occur in the brake system if the
brake flu id leve l is too low. The brake fl uid level is
monitored electronica lly.
Brake boos ter
The brake booster increases the pressure that you
generate w ith the brake pedal. It on ly operates
whi le the engine is runn ing o r with the ig nit ion
switched on (hybrid drive*)
¢ ,& .
Brake lining we ar status
Brake lining wear may be checked by visual in ­
spection of the condition of the brake pads
through the open ings in the wheel. If necessary ,
the wheel may be removed for this inspec tion
¢ page 260, Replacing wheels .
& WARNING -
- New brake pads don't have the best stop­
ping power and m ust be "broken-in" during
the initial 250 miles (400 km) . You can com­
pensate for this by pressing the brake pedal
more f irm ly. This also applies later when
new pads are installed.
- You should perform braking maneuvers for
the purpose of cleaning the brake system
only if road conditions permit. Other road
users must not be put at r isk -you may
cause an accident!
- Before descend ing a steep grade, reduce
speed and sh ift transmission into a lower
gea r or lower dr iving range. Do not ride the
bra kes or ho ld the peda l down too long or
too often . This could cause the bra kes to get
hot and diminish braking efficiency.
- Do not "ride the brakes" by rest ing your foot
on the pedal when you do not intend to
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-Ideal conditions do not prevail offroad . Nev­
er utilize the maximum read ings to their
fullest, always leave a safety reserve.
Driving tips
On poor road and offroad, there is always only
one motto: Plan ahead and drive slowly!
P lease observe the followin g when driving away
from paved roads :
~ Drive only on roads and off road sections which
match the des ign of your veh icle and yo ur abili ­
t ies as a driver . Never take risks!
~ Drive slowly and plan ahead!
~ Take into consideration the gr ou nd cle aran ce of
your vehicle.
~ Activate the offroad mode c> page 191 as need­
ed .
~ Use the hill des cent a ssi st <=:> page 193 when
dr iv ing down steep sections on hi lls.
Unp aved roads and offroad
Drive s low ly on unfami liar roads and unknown
offroad sections, and look out for unexpected ob­
stacles (e.g . potho les, rocks, tree stumps, etc .) .
T o prevent the vehicle from bottoming and avoid
damage to the underbody, you should drive
straight across severe bumps in the ground with
only one side of the vehicle so that only two of
your wheels cross t he bumps.
Drive briskly through sandy or marshy offroad
sections and do not stop, if at all poss ible.
Driving through water
Note the following to avoid vehicle damage when
driving through water, for example on flooded roads:
- The water must not be any higher than the bot-
tom of the vehicle body .
- Do no t d rive fas ter than wa lking speed.
Driving on a slope
If you ever find yourself not ab le to climb a s lope,
do not try to turn around, drive back down in
re­
ver se.
Othe rwise, you ru n the r isk of tipp ing ove r.
O ffro ad dri vin g
If the vehicle th reaten s to tip over when driving
acro ss a slope, you must immediately stee r
downhill in the direction of the slope.
Do not park you r vehi cle on steep s lopes or
grades.
T o reduce the risk of tipp ing ove r, d rive on s lopes
i n the d irection of t he downwa rd s lope (fall li ne) -
not cro sswi se .
& WARNING ~ -
After driving th rough water, mud, s lush, etc.,
the bra kes may be s low to take effect because
of wet bra ke rotors and pads. Dry the brakes
f irst by brak ing carefully to restore the full
braking effect.
(D Note
- Veh icle components s uch as the engine,
transm ission, suspension or electrical sys­
tem can be severely damaged by driving
through water.
- Always switch off the Start-Stop-System *
when drivi ng throug h water
r=> page 94.
(D Tips
- Check t he depth of the water before driving
through it.
- Do not stop the vehicle, drive in reverse or
switch the engine off when driv ing through
water.
- Keep i n mind that oncoming veh icles may
create waves that raise the water level and
make it too deep for your vehicle to drive
through safely .
-Avo id driving through salt wate r because it
can cause corrosion .
203

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wash operator to reduce the risk of acci­
dents.
- To reduce the risk of cuts, protect yourself
from sharp metal components when wash­
ing the underbody or the inside of the wheel
housings.
- After washing the vehicle, the braking effect
may be delayed due to moisture on the
brake rotors or ice in the w inter. The brakes
must be dried first w ith a few careful brake
applications.
- If you wash the vehicle in an automatic car
wash, you must fold the exterior m irrors in
to reduce the risk of damage to the mirrors.
Power folding exterior mirrors* must only
be fo lded in and out us ing the power folding
funct ion.
- To reduce the risk of damage to the rims
and tires, compare the width between the
whee ls on your vehicle w ith the distance be­
tween the g uide rails in the car wash .
- To red uce the risk of damage, compare the
height and width of yo ur vehicle with the
Care and cleaning
height and w idth of the inside of the car
was h.
- T o prevent paint damage, do not wash the
vehicle in direct sunlight.
- To reduce the ris k of damage to the sur face,
do not use insect remov ing sponges, kitchen
sponges o r similar items.
- Matte finish painted veh icle components:
- To reduce the risk of damage to the sur-
face, do not use polishing agents or hard
wax.
- Never use protective wax. It can destroy
the matte finish effect.
- Do not place any stickers or magnetic
signs on vehicle parts painted w ith matte
finish paint. The paint could be damaged
when the stickers or magnets are re­ moved.
@ For the sake of the environment
Only wash the vehicle in facilities spec ially de­
s igned for that purpose. Th is w ill reduce the
r isk of dirty water contaminated w ith oil from
entering the sewe r system.
Cleaning and care information
When clea ning and caring for individual vehicle
components, refer to the following tables. The
information conta ined there is simply recommen -dations. For questions or for components that
are not listed, refer to an authorized A
udi dealer.
Also follow the information found in
¢ A.
Ext erior cl eaning
Component Situation Solution
Wind shi eld wiper
Deposits ¢ page 58, Cleaning windshield wiper blades
blades
H eadlight s/
Deposits Soft sponge with a mild soap solutional
tail light s
S ensors /
Deposits Sensors: soft cloth with solvent-free cleaning solution
camera le nses Camera lenses: soft cloth with alcohol-free clean ing solu-
tion
Snow/ice Hand brush/solvent-free de -ic ing spray
Whe els Road salt Water
Brake dust Acid-free special cleaning
solution
Exhau st tail p ipe s Road salt Water, cleaning solution suitable for stainless steel, if nee-
essary
209

Emergency assistance
"' Use the hexagonal socket in the screwdriver
handle to screw in and tighten all wheel bolts
slightly.
"'Remove the alignment pin and insert and tight­
en the remaining wheel bolt slightly like the
rest.
"'T urn the jack handle* counter-clockwise to low­
er the vehicle until the jack* is fully released .
"'U se the whee l bolt wrench to tighten all wheel
bolts firmly¢
page 261. Tighten them cross­
wise,
from one bolt to the (approximately) op­
posite one, to keep the wheel centered.
@ Note
When removing or installing the wheel, the
r im could hit the brake rotor and damage the
rotor. Work carefu lly and have a second per­
son help you.
(D Tips
Never use the hexagonal socket in the handle
of the screwdriver to loosen or tighten the
wheel bolts.
- Pull the reversib le blade from the screwdriv­
er before you use the hexagonal socket in
the handle to turn the wheel bolts.
- When mounting tires with
unidirectional
tread design
make sure the tread pattern is
pointed the right way
¢page 264.
-The wheel bolts should be clean and easy to
turn. Check for dirt and corrosion on the
mating surfaces of bot h the wheel and the
hub. Remove all dirt from these surfaces be­
fore remounting the wheel.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the
right direction.
Using a spare tire with a tread pattern
intended for use in a specific direction
When us ing a spare tire w ith a tread pattern in­
tended for use in a specific direct ion, please note
the following:
- The direction of rotation is marked by an arrow
on the side of the tire .
264
-If the spare tire has to be installed in the incor­
rect direction, use the spare tire only tempora ­
r il y since the tire w ill not be ab le to achieve its
optimum performance character istics with re­
gard to aquaplaning, noise and wear.
- We recommend that you pay part icu lar atten­
tion to th is fact during wet weather and that
you adjust your speed to match road condi­
tions.
- Replace the flat tire with a new one and have it
installed on your veh icle as soon as possible to
resto re the handling advantages of a unidirec­
tional tire.
Notes on wheel changing
Please read the information ¢ page 242, New
tires ar wheels
if you are going to use a spare tire
which is different from the tires on your vehicle .
After you change a tire:
- Check the tire pressure on the spare immedi­
ately after installation.
- Have the wheel bolt tightening torque
checked with a torque wrench as soon as pos­
sible by your authorized Audi dealer or a
qualified workshop.
- With steel and alloy wheel rims, the wheel
bolts are correctly tightened at a torque of
105 ft lb (140 Nm).
- If you notice that the wheel bolts are corroded
and difficult to turn while changing a tire,
they should be replaced before you check the
tightening torque.
- Replace the flat tire with a new one and have
it installed on your vehicle as soon as possi­
ble. Remount the wheel cover.
Until then, drive with extra care and at reduced
speeds.
&_ WARNING
- If you are going to equ ip your vehi cle w ith
tires or rims which differ from those which
were factory installed, then be sure to read
the information ¢
page 242, New tires or
wheels .
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