2018 AUDI A7 brakes

Intelligent Technology
ESC levels
Applies to : RS models
Sport mode on ESC/ASR off Sport mode off or
ESC/ASRon
Behavior
The ESC and ASR stabiliza -
The stabilization function is Th
e fu ll stabilization func-
tion functions are limited not available
¢ .&. . ESC and tion of the ESC and ASR is
¢ .&_. ASR are switched off. avai lab le aga in.
Operation Press the I~ OFFI button Press and hold the I~ OFFI Press the I ~ OFFI button
briefly. button
longer than 3 sec-
again.
onds .
Indicator II turns on. II and II turn on. II turns off or II and II
lights turn off.
Messages Stabilization control (ESC): Stabilization control (ESC): Stabilization control
Sport Warning! Reduced Off Warning! Reduced sta- (ESC): On
stability bility
A WARNING
-You should only switch sport mode on or
switch ESC/ ASR off if your driving abilities
and road conditions permit.
- The stabilization function is limited when
sport mode is switched on. The driving
wheels could spin and the vehicle could swerve, especially on slick or slippery road
surfaces.
- There is no vehicle stabilization when ESC/
ASR are switched off.
(D Tips
- ESC/ASR cannot be switched off or sport
mode cannot be switched on if the cruise
control system* or the adaptive cruise con­
trol* is switched on.
- If the rear spoiler system malfunctions,
sport mode may not switch on or it may
switch off again automatically.
Brakes
New brake pads
-
New brake pads do not achieve their full braking
effe ct during the first 2S0 mi (400 km). They
must be "broken in" first.
The break-in period can be considerably longer
for vehicles with ceramic brake rotors*. However,
you can compensate for the slightly reduced
122
braking force by pressing firmly on the brake
pedal. Avoid heavy braking during the break-in
period.
Wear
Brake pad
wear depends large ly on the way the
vehicle is driven and on operating conditions .
This is espec ia lly true if you are driv ing frequently
i n the city and on curves or with a sporty driving
style.
Operating noise
Noises may occur when braking depending on the
speed, braking force and outside conditions such
as temperature and humidity.
Noises may become more apparent at lower
speeds due to the nature of the materials in the
ceramic brake rotors*.
Effect of water and road salt
In certain situations, for example after driving
through water, in heavy rain, after overnight con­
densation 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 carefu l brake applica­
tions.
At higher speeds and with the windshield wipers
turned on, the brake pads press against the brake
rotors for a short amount of time. This action,
which is not felt by the dr iver, happens at regular
IJIJ,

a co .... N
" N .... 0 00 \.J ' intervals and ensures a better reaction time for
the brakes in wet weather.
The braking effect can also be reduced if you are
driving on salted roads and you do not apply the
brakes for long periods of time. The layer of salt
on the brake rotors and pads must be worn off
first when the brakes are applied.
Due to its surface, the ceramic brake rotor* ab­
sorbs moisture in certain situations. Therefore,
there will temporarily be less braking force than
when the brakes are dry. You can compensate for
this by pressing the brake pedal harder.
Corrosion
Leaving the vehicle parked for long periods of
time, low mileage and avoiding heavy braking
can contribute to corrosion on the brake rotors
and to dirty brake pads.
If you usually avoid heavy braking or if there is
corrosion present, occasional heavy braking at
high speeds is recommended to clean the brake
rotors and
pads ¢.&. .
Brake system malfunction
If you notice that the brake pedal travel has sud­
denly increased, then a brake circuit in the dual­
circuit brake system may have malfunctioned. Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
problem corrected. On the way there, drive with
reduced speed and keep in mind that you will
need a longer distance to stop and you will need
to press the brake pedal harder .
Low brake fluid level
When the brake fluid level is low, malfunctions in
the brake system may occur . The brake fluid level
is electronically monitored .
Brake booster
The brake booster amplifies the pressure you ap­
ply to the brake pedal. It only works when the en­
gine is running.
A WARNING
-Only apply the brakes for the purpose of
cleaning the brake system when road and
-
Intelligent Technology
traffic conditions permit. You must not en­
danger other road users. This increases the
risk of an accident.
- Never let the vehicle roll while the engine is
stopped because this increases the risk of an
accident.
- New brake pads do not achieve their full
braking effect during the first 250 mi
(400 km) . They must be "broken in" first.
The break-in period can be considerably lon­
ger for vehicles with ceramic brake rotors*.
However, you can compensate for the
slightly reduced braking force by pressing
firmly on the brake pedal. Avoid heavy brak­
ing during the break-in period.
- Certain weather and operating conditions
such as driving through water, driving in
heavy rain or driving after washing your ve­
hicle can impair the effectiveness of the
brakes. In the winter, ice may build up on
the brake pads, rotors and drums. Check
these components by braking carefully. Ap­
plying the brakes carefully several times
dries the brakes and removes ice build-up .
- The efficiency of the brakes can also be im­
paired by driving for long stretches on roads
covered with salt without using the brakes.
You can remove salt deposits from the
brake rotors and pads by carefully applying
the brakes several times.
- If the front spoiler is damaged or you install
another spoiler, make sure the front wheel
brakes are ventilated properly. Otherwise,
the brake system could overheat, which re­
duces their effectiveness.
- Failure of a brake circuit impairs braking
performance, which increases braking dis­
tance. Avoid driving the vehicle and have it
towed it to the nearest authorized Audi
dealer or authorized Audi Service Facility.
- If the brake booster is not working, you will
have to press much harder on the brake
pedal to compensate for the lack of the
booster .
@ Note
-Never let the brakes "rub" by pressing the
pedal lightly when braking is not actually
123

Intellig ent T echn olo gy
necessary. This causes the brakes to over­
heat and increases braking distance and
causes wear.
- Before driving downhi ll a long distance on a
steep hill, decrease your speed and select a l ower gear. This makes use of the engine
braking effect and relieves the brakes. If
you need to brake additionally, brake in in­
tervals and not continuously .
(D Tips
-If the brake booster is not working, you
must press the brake pedal with much more
force than normal.
- If you retrofit your vehicle with a front spoil­
er, wheel covers or s imilar items, make sure
that the a ir flow to the front wheels is not
i nterrupted. Otherw ise the brake system
ca n become too hot.
Electromechanical
steering, dynamic
steering
The electromechanical steering supports the
driver's steering movements .
Power steering adapts electronically based on
the vehicle speed .
Indicator light s and me ssages
• Do not d rive vehicle: St eering d efecti ve
If t his ind icator light tu rns o n and stays o n and
this message appears, t he power steer ing may
have fai led.
Stop the veh icle in a safe locat io n as soon as pos­
sib le. Do
n ot continue dr iving. See an author ized
Aud i dea ler or authorized Aud i Serv ice Facility for
assistance.
l;:r-ij St ee ring : Sys tem f ault You can con tinu e
dri ving
If the ind icator light turns on and the message
appears, the steering wheel may be more diff i­
cult to move or mo re sensit ive tha n usual. The
steer ing whee l may a lso be at an angle when
driving straight .
124
Drive slowly to an authorized Audi dea ler or au­
thorized Audi Service Facility to have the mal ­
funct ion corrected .
'I-ij Dyn ami c ste ering : Initializing
If the indicator l ight is blinking and this message
appears, dy namic stee ring* is be ing initialized.
The steer ing whee l will be easy to move afte r
start ing t he engine . Re -init ialization mig ht be
necessary if the steering wheel was moved hard
to the left and right while the vehicle was not
moving . The d isp lay turns off if the init ia li zation
was successful.
(D Tips
- If the . or 'Tfl indicator light only stays on
for a short time, you may cont inue driving .
- Th e dynamic steering stability systems
<=>page 120 are not avai lab le in the event of
a system malfunction.
- For additiona l information on dynamic
steering, see
<=> page 105.
All wheel drive (quattro)
Applies to: vehicles with all wheel drive
In all wheel drive, all four wheels are powered.
G en eral information
In all whee l dr ive, the dr iv ing power is divided be ­
tween all four whee ls. This happens automatical­
l y depending on your driving behavior as we ll as
the current road conditions . Also see
c> page 120, Electronic stabili zation control
(ESC).
A center differential distributes the driving power
variab ly to the front and rear ax le. It works to­
gether w ith selective whee l torque contro l, wh ich
activates when driving through curves
<=>page 120 . With the sport d ifferent ial*, power
distribution to the rear wheels is variable and can
be adjusted with d rive select
c> page 105 .
The all wheel drive concept is designed for high
engine power . Your vehicle is except ionally pow­
erful and has excellent driving characteristics
both under normal driving conditions and on
snow and ice. A lways read and follow safety pre-
ca utions
c> .&. . II>-

Wheel s
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 transmission, power steer­
ing , power brakes , power win­
dows , power seats, radio, and
heater, to the extent that these
items are available as factory-in­
stalled equipment (whether in­
stalled or not).
Aspect ratio
means the ratio of the height to
the width 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
reinforced by ply cords and that is
shaped to fit the rim.
Bead separation
means a breakdown of the bond
between components in the bead.
208
Cord
means the strands forming the
plies in the tire.
Cold tire inflation pressure
means the t ire pressure recom­
mended by the vehicle manufac­
turer for a tire of a designated
size that has not been driven for
more than a couple of miles (kilo ­
meters) at low speeds in the
three hour period before the tire pressure is measured or adjusted.
Curb weight
means the weight of a motor ve­
hicle w ith standard equipment in­
cluding the maximum capacity of
fuel, oil, and coolant, ai r condi­
tioning and additional weight of
optional equipment.
E x tra load ti re
means a tire designed to operate
at higher loads and at higher in­
flation pressures than the corre­
sponding standard tire. Extra load
tires may be identified as "X L",
"
l" "EXTRA LOAD" or "RF" on X I I
the sidewall. .,.

Wheels
Production options we igh t
means the combined weight of
those installed regular production
options weighing over 5 lbs.
(2.3 kg) in excess of those stand­
ard items which they replace, not previously considered in curb
weight or accessory weight, in­
cluding heavy duty brakes, ride levelers, roof rack, heavy duty
battery, and special trim.
Radial pl y tir e
means a pneumatic tire in which
the ply cords that extend to the beads are laid at substantially
90 degrees to the centerline of
the tread.
R ecomm ended in flation
pressure
see ¢ page 208 , Cold tire infla­
tion pressure.
R einforced tire
means a tire designed to operate
at higher loads and at higher in­
flation pressures than the corre­
sponding standard tire . Rein ­
forced tires may be identified as
"XL" "xl" "EXTRA LOAD" or "RF" , , ,
on the sidewall.
210
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim diam eter
means nominal diameter of the
bead seat . If you change your
wheel size, you will have to pur ­
chase new tires to match the new rim diameter .
Rim size designation
means rim diameter and width.
Rim width
means nomina l distance between
r im
flanges .
Sidewall
means that portion of a tire be­
tween the tread and bead .
Speed rating (letter code )
means the speed at which a tire is
designed to be driven for extend­
ed periods of time. The ratings range from 93 mph (150 km/h)
to
186 mph (298 km/h) ¢ table
on page 206 .
You may not find
this information on all tires be­
cause it is not required by law .
The speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the
...

0 0)
-N ,.... N
-0 0) \.) ..
are listed on the safety compli­
ance sticker labe l located on the
driver's side 8 -pillar .
A WAR NING
-
Overloading a vehicle can cause
loss of vehicle contro l, a crash
or other accident, serious per­
sonal injury , and even death .
-Carrying more weight than your vehic le was designed to
carry will p revent the vehicle
from handling properly and increase the risk of the loss of
vehicle control.
-The brakes on a vehicle that has been over loaded may not
be able to stop the veh icle
within a safe dis tance .
-Tires on a vehicle that has been overloaded can fail sud­
d en ly , including a blowout and
sudden deflation, causing loss
of control and a crash .
-Always make su re that the to­
tal load being transported -
includ ing the weight of a trail ­
er hitch and the tongue
we ight of a loaded trailer -
d oes not make t he vehicle
heavier than the vehicle's
Gross Vehicle We ight Rating .
Wheels
Determining correct load
limit
Use the example below to calcu ­
late the total weight of the pas­
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 . L ocate the statement " THE
COMB INED W EIGH T OF OCCU­
PANTS AND CARGO S HOU LD
NEVER EXCEED XXX KG OR XXX
L BS" on your vehicle's placard
(tire inflation pressure label)
¢ page 215, fig. 189 .
2. Determine the combined
weight of the driver and pas­
sengers that w ill be riding in
your vehicle .
3 . Subtract the combined weight
of the driver and passengers
from
" XXX " kilog rams or " XXX "
pounds shown on the sticker
¢page 215, fig. 189 .
4. T he resulting figure equals the
available amount of cargo and luggage load capacity. For ex­
ample , if the
"XXX " amount
equa ls 1400 lbs . and there
will .,.
219

Index
ASR
re fer to Anti-Slip Regu lation . . . . . . . . . . . 120
Aud i b raking guard
refer to B raking gua rd . . . . . . . . . . . . . . . . . 92
Aud i drive select
refer to Drive select . . . . . . . . . . . . . . . . . . 105
Audi Service Repair Manuals and Literature 255
AUTO 4-zone deluxe automatic climate control . . 6 1
Automatic headlights . . . . . . . . . . . . . . . . . 39
D eluxe automatic climate contro l . . . . . . . . 59
Auto Lock (centra l locki ng) . . . . . . . . . . . . . . 26
Automatic belt retractor . . . . . . . . . . . . . . . 1 41
Autom atic climate control . . . . . . . . . . . . . . . 58
Key recognition . . . . . . . . . . . . . . . . . . . . . . 58
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Automatic key . . . . . . . . . . . . . . . . . . . . . . . . . 27
Automatic post-co llision brak ing system . . 120
Automatic transm ission . . . . . . . . . . . . . . . . . 74
Emergency mode . . . . . . . . . . . . . . . . . . . . . 79
Hill descent contro l . . . . . . . . . . . . . . . . . . . 77
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Overboost . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Selector lever emergency re lease . . . . . . . . 80
Selector lever pos itions . . . . . . . . . . . . . . . . 75
Shifti ng manually . . . . . . . . . . . . . . . . . . . . 78
Steer ing whee l w ith shift padd les . . . . . . . . 78
tiptron ic mode . . . . . . . . . . . . . . . . . . . . . . . 78
Automatic wipe/wash system . . . . . . . . . . . . 45
Auto Safety Hotline . . . . . . . . . . . . . . . . . . . 136
Ave rage consumption . . . . . . . . . . . . . . . . . . . 21
Average speed . . . . . . . . . . . . . . . . . . . . . . . . 21
B
Battery
Jump starting . . . . . . . . . . . . . . . . . . . . . . . 247
also refer to Vehicle battery . . . . . . . . . . . 201
Before driving . . . . . . . . . . . . . . . . . . . . . . . . 129
Belt tensioner Dr ive select . . . . . . . . . . . . . . . . . . . . . . . . . 105
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . . 144
Blended gasoline . . . . . . . . . . . . . . . . . . . . . 189
Blower (4-zone deluxe automatic climate con-
trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Blower (de luxe automatic climate contro l) . . 59
Boost display . . . . . . . . . . . . . . . . . . . . . . . . . 23
260
Booster seats . . . . . . . . . . . . . . . . . . . . . . . . 180
Boost p ressure ind icator . . . . . . . . . . . . . . . . 23
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Brake ass ist . . . . . . . . . . . . . . . . . . . . . . . . 120
Brake booster . . . . . . . . . . . . . . . . . . . . . . . 122
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . 201
Ceramic b rake roto rs . . . . . . . . . . . . . . . . . 122
El ectromechanical parking brake . . . . . . . . 72
E mergency b raking fu nction . . . . . . . . . . . . 73
Ind icator lig ht . . . . . . . . . . . . . . . . . . . . 12 , 18
New brake pads . . . . . . . . . . . . . . . . . . . . . 122
Worn brake pads . . . . . . . . . . . . . . . . . . . . . 16
B raking guard . . . . . . . . . . . . . . . . . . . . . . . . . 92
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Set tings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Break -in security feature . . . . . . . . . . . . . . . . 32
Breaking in New brake pads . . . . . . . . . . . . . . . . . . . . . 122
New engine . . . . . . . . . . . . . . . . . . . . . . . . . 64
New tires . . . . . . . . . . . . . . . . . . . . . . . . . . 212
C
Californ ia Propos ition 65 Warning . . . . . . . 194
Battery specif ic . . . . . . . . . . . . . . . . . . . . . 201
Capacities Fuel tank. . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Washer fluid reservoir . . . . . . . . . . . . . . . . 254
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Cargo area . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Cata lytic conve rter . . . . . . . . . . . . . . . . . . . . 192
Centra l locking . . . . . . . . . . . . . . . . . . . . . . . . 26
Convenie nce key . . . . . . . . . . . . . . . . . . . . . . 29
Mechan ica lly locking . . . . . . . . . . . . . . . . . . 31
Power w indows . . . . . . . . . . . . . . . . . . . . . . 36
Remo te control key . . . . . . . . . . . . . . . . . . . 29
Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Centra l locking sw itch . . . . . . . . . . . . . . . . . . 30
Ceramic brake rotors New brake pads . . . . . . . . . . . . . . . . . . . . . 122
Certification . . . . . . . . . . . . . . . . . . . . . . . . . 258
Chang ing engine oil . . . . . . . . . . . . . . . . . . . 198