2015 AUDI Q3 brake rotor

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Effect of w ate r and ro ad salt
In certain situa tions, for example after driving
through water, in heavy rain, after overnight
condensation or after washing your car, the braking effect can be reduced by moisture or
ice on the brake rotors and brake pads. The
brakes must be dried first with a few careful
brake applications.
At higher speeds and with the windshield wip ­
ers turned on, the brake pads press against
the brake rotors for a short amount of time.
This occurs at regular intervals w ithout the
driver noticing and provides for better brake response time under wet condit ions.
The effectiveness of the brakes can be reduced
when the vehicle is dr iven o n a salt-covered
road and the brakes are not used . Likewise,
you clean
off accumulated sa lt coating from
brake discs and pads with a few caut ious ap­
p lications of the brake¢.&. -
Cor ro sion
There may be a tendency for dirt to build up
on the b rake pads and corrosion to form on
the discs if the car is not dr iven regular ly or
only for short t rips with little use of the
brakes.
If the brakes are not used frequently, or if cor­ rosion has formed on the discs, it is advisable
to clean
off the pads and discs by b rak ing
fi rm ly a few times from a modera tely high
speed¢ .&..
Faults in the brake system
If you should notice a sudden increase in
brake pedal travel, then one of the two brake
circu its may have failed¢&. -
Low brake fluid le vel
Malfunct ions can occur in the brake system if
the brake fluid level is too low. T he brake fluid
level is monitored electronically .
Brake boo ster
The brake booster increases the pressure that
you generate with the brake pedal. It works
only when the engine is running .¢ .&.
Int ellig ent technolog y 157
Brak e lining we ar status
B rake lining wear may be checked by visual in­
spection o f the condition of the brake pads
thro ugh the openings in the wheel. If neces­
sary, the wheel may be removed for this in­
spection
¢ page 218, Changing a wheel.
A WARNING
-New brake pads don't have the best stop­
ping power and must be "broken-in" dur­
ing the initial 100 to 150 miles (150 to
200 kilometers) of normal c ity dr iving .
You can compensate for this by pressing
the brake pedal more firmly. This also
applies la ter when new pads are instal­
led.
- 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 risk -
you may cause an accident!
- Before descending a steep grade, reduce
speed and shift transmission into a lower
gea r or lower dr iving range. Do not ride
the brakes or hold the pedal down too
long or too often. This could cause the
brakes 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 brake. This may cause the brakes to overheat, p remature wear and increased
s topping distance.
- Unde r ce rtain cl imati c and ope rat ing
conditions such as passing thro ugh wa­
ter, dr iv ing in heavy rain o r after washing
the vehicle, the effectiveness of the
brakes can be reduced. In winte r, ice can
accumu late on the brake pads, lin ings,
discs and drums. Carefully app ly brakes
for a test. Brakes w ill dry and ice coat­
ings w ill be cleaned
off after a few care­
ful brake applicat ions.
- Driving for an extended period of time on
salt-covered roads without using your brakes can a lso affect braking efficiency.
Clean
off accum ulated salt coating from
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conditions. Drive especially slow if
offroad with low visibility.
- Please note that the wheels can spin and
the vehicle can break away when the ESC
Offroad Mode is switched off, especially
when the road is slippery.
- Driv ing stability is reduced in the ESC
Offroad mode.
@ For the sake of the envi ronment
Avoid harming the environment and take
nature into consideration .
(D Tips
On ly drive where it is allowed and always
stay on the provided roads and paths .
Driver messages
There is only one right way to drive in difficult
conditions: slowly and with caution!
When driv ing offroad, observe the following:
• Never dr ive the veh icle in terra in which is
not suitable for the veh icle, or wh ich ex­
ceeds your driving skills. Never take any un­
necessary risks!
• Drive slowly and cautiously!
• Pay attention to the
gro und cl earance of
your vehicle! This may vary depending on
the load and composition of the ground and
the environment. The driver is therefore re­
spons ible for deciding whether a vehicle can
handle a specific situation .
• Activate the
ESC-Offr oad-Mode Q page 155
as needed.
• Use the
hill desce nt ass is t Q page 155 when
driv ing down steep sections on hi lls.
Difficult terr ain
Never drive in areas that are not familiar to
you and dr ive slowly when offroad and be pre­
pared and expect the unexpected (e.g . pot­
holes, bou lders, tree stumps, etc.)
To prevent the vehicle from bottoming and
avoid damage to the underbody , you should
drive straight across severe bumps in the
Dri vin g and en vironm ent 165
ground with only one side o f the veh icle so
that only two of your whee ls cross the bumps.
Drive quickly through sandy or marshy offroad
sections and do not stop, if at all possible .
Driving throu gh w ater on road s
Note the following to avoid veh icle damage
when driving through water, for examp le on
flooded roads:
- The water must not be any higher than the
bottom of the vehicle body.
- Do not drive faster than walking speed .
A WARNING
--After driving through water, mud, slush,
etc., the brakes may be slow to take effect because of wet brake rotors and pads. D ry
the bra kes first by braking carefully to re­
store the fu ll braking effect.
(D Note
Vehicle components such as the eng ine,
transmission, suspension or electrical sys­
tem can be severe ly damaged by dr iv ing
th rough water.
(D Tips
- Check the depth of the water before d riv­
ing through it.
- Do not stop the vehicle, drive in reverse
or switch the engine off when driving
thro ugh water.
- Keep i n mind that oncoming veh icles
may create waves that raise the water
level and make it too deep for your vehi­
cle to drive through sa fely.
- Avo id d riving through salt wate r because
i t can cause corros ion.
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Vehicle care and cleaning 171
Rinse the vehicle thoroughly again and let it
air dry. Remove any water residue using a
shammy .
A WARNING
- Only wash the vehicle when the ignition
is off and follow the instructions from
the car wash operator to reduce the risk
of accidents .
- To reduce the r isk of cuts, protect your­
self from sharp metal components when
wash ing the underbody or the inside of
the wheel housings.
- After washing the vehicle, the braking ef­
fect may be de layed due to moisture on
the brake rotors or ice in the winter. The
brakes must be dried first with a few
careful brake applications.
([) Note
-If you wash the vehicle in an automatic
car wash, you must fold the exterior m ir­
rors in to reduce the ris k of damage to
the mirrors. Power folding exterior mir ­
rors* must only be folded in and out us ­
ing the power folding function. -
To prevent paint damage, do not wash
the vehicle in direct sunlight.
- To reduce the risk of damage to the sur­
face, do not use insect removing spong­
es, kitchen sponges or similar items.
- Matte finish painted vehicle compo­
nents:
- To reduce the risk of damage to the
surface, do not use polishing agents or
hard wax.
- Never use car wash cycles that apply
protective wax.
It can destroy the
matte finish effect .
- Do not place any stickers or magnet ic
signs on vehicle parts painted w ith
matte fin ish paint. The paint could be
damaged when the stickers or magnets
are removed.
@ For the sake of the environment
Only wash the vehicle in facilities spec ially
designed for that purpose . This will red uce
the r isk of dirty water contam inated with
oil from entering the sewer system.
Cleaning and care information
When cleaning and caring for individual vehi­
cle components, refer to the following tab les .
The information contained there is simply rec­
ommendations . For questions or for compo- nents that are not listed,
refer to an author­
ized Audi dealer or qualified workshop. A lso
follow the information found in ¢ ,& .
Cleaning exterior
Component Situation Solution
Wiper blades
Dirty Q page 4 7, Cleaning windshield wiper blades
Headlights/ Dirty Soft sponge with
a m ild soap solutiona>
tail lights
Sensors/
Dirty Sensors: soft cloth with a solvent -free cleaning product
camera lenses Camera lenses: soft cloth with an alcohol-free cleaning
solution
Snow/ice Hand brush/solvent-free de-icing spray
Wheels Road sa lt Water
Brake dust Acid-free special cleaning solution
Exhaust tail Road salt Water, cleaning solut ion suitable for stainless steel, if
pipes necessary
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222 What do I do now?
-If work has to be done under the vehi ­
cle , ensure that it is safely supported
on suitable stands -risk of injury!
- Never start the engine when the vehi­
cle is on the jack -risk of accident!
CD Note
Do not lift the vehicle by the si ll. Position
the vehicle jack only at the designated lift­
ing points on the sill. Otherwise, your vehi­
cle will be damaged.
Taking the wheel off/installing the spare
tire
Follow these instructions step-by-step for
changing the wheel.
Fig. 167 Changing a whee l: u sing the hexago nal socket
(w ith the blade removed) to turn the bolts
Fig. 168 Changing a w hee l: a lignm en t pi n inside the
top hole
After you have loosened a ll wheel bolts and
ra ised the veh icle off the ground, remove and
replace the wheel as follows:
Removing the wheel
> Remove the topmost wheel bolt completely
with the
hexagonal socket in the screwdriv­
er handle (vehicle tool kit)
r=;; fig. 167 and
set it as ide on a
clean su rface. >
Screw the threaded end of the
alignment
pin
from the tool kit hand-tight into the
empty bolt hole
¢ fig. 168 .
... Then remove the other whee l bolts as de­
scribed above.
> Takeoff the whee l leaving the alignment pin
in the bolt hole
r=;; (D.
Putting on the spare tire
... Push the spare tire over the alignment pin
¢ CD.
... Screw on the wheel bolts and tighten them
slightly using the hexagonal socket .
> Remove the alignment pin and insert and
tighten the remaining wheel bolt slightly
like the rest.
... Turn the jack handle counter -clockwise to
lower the veh icle until the jack is fully re­
leased .
... Use the wheel bolt wrench to tighten all
wheel bo lts firm ly. Tighten them
in a criss­
cross pattern,
from one bolt to the (approx i­
mately) oppos ite one, to keep the wheel
centered.
> Perform the steps required after changing
the wheel
¢ page 219, After changing a
wheel.
A WARNING
-
Do not use the hexagonal socket in the
screwdriver hand le to tighten the whee l
bolts. It is not possible to tighten the bolts
to the required torque using the hexagonal
socket - risk of accident!
CD Note
When removing or installing the whee l,
the rim cou ld hit the brake rotor and dam­
age the rotor. Work carefu lly and have a
second person to help you.
(D Tips
-When mount ing tires with unidirectional
tread design
make sure the tread pat­
tern is po inted the right way
r=;;page223.
- The wheel bolts shou ld be clean and easy
to turn. Check for dirt and corrosion on