2016 AUDI RS7 SPORTBACK ABS

In extreme cases, EDL automatically switches off
to keep the brake on the braked wheel from over­
heating. The vehicle is still working correctly. EDL
will switch on again automatically when condi ­
tions have returned to normal.
Steering recommendation
The ESC helps to stabilize the vehicle by changing
the steering torque .
I n vehicles with dynamic steering*, ESC also
helps to stabilize the steering in critical situa ­
tions.
Selective wheel torque control
Selective wheel torque control is used when driv­
ing on curves. The front wheel on the inside of
the curve or both wheels on the inside of the
curve are braked selectively as needed. This al­
lows more precise driving in curves.
Automatic post-collision braking system
The "Automatic post-collision brak ing system"
can help to reduce the risk of sliding and of other
coll isions after an accident.
If the airbag control
module detects a collision above a certain vehicle
speed, the vehicle is braked by the ESC.
The vehicle does not brake automatically if:
- the driver presses the accelerator pedal, or
- the braking force generated by the pressed
brake pedal is greater than the brak ing force
that would be initiated by the system, or
- the ESC, the brake system or the vehicle electri­
cal system are not function ing .
Switching on /off
Intelligent Technology
A WARNING
-- The ESC and its integrated systems cannot
overcome the limits posed by natural physi­
cal laws. This is especia lly important on slip­
pery or wet roads. If the systems begin act­
ing to stabilize your vehicle, you should im­
mediately alter your speed to match the
road and traffic conditions. Do not let the
increased safety provided tempt you into
taking r isks. This cou ld increase your risk of
a collision .
- Please note the risk of a collision increases
when driving fast, especially through curves
and on slippery or wet roads, and when dr iv­
ing too close to objects ahead. The ESC and
its integrated systems cannot always pre­
vent collisions -there is still a risk of acci­
dents!
- Press the accelerator pedal carefully when
accelerating on even, slippery surfaces such
as ice and snow. The dr ive wheels can spin
even when these control systems are instal­
led and this can affect driving stability and
i n crease the risk of a collision .
(j) Tips
-ABS and ASR only function correctly when
all four wheels are equipped with identical
tires. Different tire sizes can lead to a reduc­
tion in engine power.
- You may hear noises when the systems de­
scribed are working.
£SC turns on automatically when you start the engine.
Fig. 175 Center console: OFF~ button
The ESC is designed to function in levels. Depend­
ing on the level that is se lected, the stabilization
function of the ESC is limited or switched off. The amount of stabilization control will differ de­
pending on the level.
The following examples are unusual situations
where it may make sense to switch sport mode on in order to allow the wheels to spin:
- Rocking the vehicle to free it when it is stuck ..,.
181

Effect of wat er and road salt
In ce rtain situations, for example after driving
through water, in heavy rain, afte r ove rnight 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 w ith a few careful brake applications.
At higher speeds and with the windshie ld wipers
turned on, the brake pads press against the brake rotors for a short amount of time. Th is occurs at
regular intervals without the driver noticing and
provides for better brake response time under
wet conditions .
The effectiveness of the brakes can be reduced
when the vehicle is driven on a salt-covered road
and the brakes are not used. Likewise, you clean
off accumulated salt coat ing from brake discs
and pads with a few cautious applications of the b rake ¢_&. .
Due to their surface character istics, ceramic
brake roto rs* absorb mo isture in such condit ions.
This can cause a temporary reduc tion in braking
force compared to dry brakes. You can compe n­
sate fo r th is by press ing the b rake peda l harder.
Corrosion
There may be a tende ncy for d irt to bu ild up on
the brake pads and corros ion to form on the discs
if the car is not dr iven regularly or only fo r sho rt
tr ips with little use of the brakes.
If the brakes are not used frequently, or if corro­
sion has formed on the discs, it is adv isable to
clean off the pads and discs by brak ing firmly a
few t imes from a mode rately h igh speed ¢,& .
Faults in the brake system
If you should notice a sudden increase in brake
pedal travel, then one of the two brake c ircuits
may have failed
¢ ,& .
Low brake fluid le vel
Malfunct ions can occur in the brake system if the
brake fl uid level is too low. The brake fluid level
is monitored electronically .
Intelligent Technology
Brake booster
The brake boos ter works w ith v acuum press ure
which is crea ted on ly when the engine is running
¢ & .
Brake lining wear status
Brake lining wea r may be chec ked by visua l in­
spe ct ion of the condition of the brake pads
t hr ough the openings in t he wheel. If necessary,
the wheel may be removed for this inspection
¢ page 243, Replacing wheels .
_8 WARNING "'----
-New b rake pads don't have the best stop­
p ing power and must be "broken-in" d uring
the initial 250 miles (400 km). The b reak-in
period can be considerably longer for
veh icles with ceramic brake roto rs*. You can
compensate for this by pressing the brake
pedal mo re firmly. This also applies late r
when new p ads are inst alled.
- You shou ld pe rform braking maneuvers for
the purpose of cleaning the brake system
only i f road condit io ns pe rmit. O ther ro ad
users m ust no t be put at r is k - you may
cause an accident!
- Before descending a steep g rade, reduce
speed and shift transmission into a lower
gear o r lower driving range. Do not r ide the
brakes or hold the pedal down too long or
too often. This cou ld cause t he b rakes to get
hot and dimin ish braking effic iency.
- 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 over­
heat, premature wear and increased stop­
p ing distance .
- Unde r certain climatic and ope rating condi­
tions such as passing t hrough water, d riving
i n heavy rain o r afte r wash ing the veh icle,
the effectiveness of the brakes ca n be re­
duce d. In winter, ice can accum ulate on the
b rake pads, lin ings, discs and dr ums. Care­
fu lly apply brakes for a test. Brakes will d ry
an d ice coatings will be cleaned off after a
few ca refu l brake applications.
183

Care and cleaning
Component Situation Solution
Te xtil es
Deposits adhering to Vacuum cleaner
a rt ifici al le ather , the surface
Alcant ara Water-based deposits Absorben
t cloth and mild soap solutiona>
such as coffee, tea,
blood, etc.
O il-based deposits Apply a m ild soap solution a), blot away the dissolved oil or
such as oil, make-up, dye, treat afterward with water, if necessary
etc.
Special deposits such Special stain remover, b lot with absorbent material, treat
as ink, na il polish, la- afterward with mild soap solution, if necessary a)
tex paint, shoe pol-
ish, etc.
Natural leather Fresh stains Wool cloth with a mild soap so
lutiona)
Water-based deposits fresh sta ins: absorbent cloth
such as coffee, tea, Dried sta ins: stain remover suitable fo r leather
blood, etc.
Oil-based deposits Fresh staiins: absorbent cloth and stain remover suitable
such as oil, make-up, for leather
etc. Dried sta ins : grease dissolv ing spray
Special deposits such Spot remover suitab le for leather
as ink, nai l polish, la -
tex paint, shoe pol-
ish, etc.
Ca re Regularly apply cond ition ing cream that protects from
light and penet rates into the materia l. Use specia lly-co l-
ored conditioning cream, if necessary.
Carbon parts Deposits clean the same way as plastic parts
a) Mild soap solution: maximum two tablespoons of neutral soap in 1 quart (l liter) of water
_& WARNING
The windshie ld may not be trea ted with wa­
ter-repelling windshield coating agents. Un­
favorable conditions s uch as wetness, dark­
ness, or low sun can result in increased glare .
Wiper blade chatter is also possible.
(D Note
- Headlights/tail light s
-Never clean headlights or tail lights with a
dry cloth or sponge.
- Do not use any cleaning product that con­
tains alcohol, because they could cause
cracks to form.
- Wheels
196
-
- Never use any paint polish or other abra­
sive materials.
- Damage to the protect ive layer on the
rims such as stone chips or scratches must
be repaired immediately.
- Sensors /camera lenses
- Neve r use wa rm or ho t wa ter to remove
snow or ice from the camera lens . This
could cause the lens to crack .
- N eve r use ab rasive cleaning materials or
a lcohol to clea n the camera lens . This
could cause scratches and cracks .
-Doo r window s
-Remove snow and ice on windows and ex-
terior mirrors with a plast ic scraper. To

Checking and Filling
"' Read the brake fluid level from the brake fluid
reservoir
¢ fig. 187, ¢page 205, fig. 183. The
brake fluid level must be between the "MIN"
and "MAX" markings.
The location of the brake fluid reservoir can be
seen in the engine compartment illustration
c>page205.
The fluid level may drop slightly after some time
due to the automatic adjustment of the brake
pads. This is not cause for alarm.
If the brake fluid level falls considerably below
the "MIN" mark, the brake warning/indicator
light
1111 (U.S. models)/ . (Canadian models)
will come on¢
page 14. Do not continue to oper­
ate the vehicle. The complete brake system
should be thoroughly checked by an authorized
Audi dealer or other qualified facility and the
cause corrected . If the brake fluid level is too
low, the brake warning/indicator light will illumi­
nate. Contact an authorized Audi dealer
immedi­
ately.
Changing brake fluid
Have the brake fluid changed by an experienced
technician.
Brake fluid absorbs moisture from the air . If the
water content in the brake fluid is too high , cor­
rosion in the brake system may result after a pe­
riod of time. The boiling point of the brake fluid
will also decrease considerably and decrease
braking performance.
Therefore, the brake fluid must be changed
every
two years.
Always use new brake fluid which con­
forms to Federal Motor Vehicle Standard "FMVSS
116 DOT 4".
The brake fluid reservoir can be difficult to reach,
therefore, we recommend that you have the
brake fluid changed by your authorized
Audi
dealer.
Your dealer has the correct tools, the
right brake fluid and the know-how to do this for
you.
212
A WARNING
-
- Brake fluid is poisonous. It must be stored
only in the closed original container out of
the reach of children!
- Brake failure can result from old or inappro­
priate brake fluid. Observe these precau­
tions:
- Use only brake fluid that meets SAE speci­
fication
J 1703 and conforms to Federal
Motor Vehicle Standard 116. Always check
with your authorized Audi dealer to make
sure you are using the correct brake fluid.
The correct type of brake fluid is also indi­
cated on the brake fluid reservoir .
- The brake fluid must be new. Heavy use of
the brakes can cause a vapor lock if the
brake fluid is left in the system too long .
This can seriously affect the efficiency of
the brakes as well as your safety. This
could result in an accident.
(D Note
Brake fluid will damage the paint of your vehi­
cle.
@ For the sake of the environment
Because of the problem of proper disposal of
brake fluid as well as the special tools 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 a service facility. The elec­
trolyte level should also be checked each time
the battery is charged ¢
page 214.
Have the battery checked when you take your ve­
hicle in for service. You are well advised to re­
place a battery that is older than S years.

With certain types o f air bag dep loyment, the
battery is disconnected from the vehicle electri­
cal system for safety reasons¢&.
in Repair, care
and disposal of the airbags on page 150 .
Disconnecting the battery terminals
Some vehicle func tions (power w indow re gula­
t ors, for example) are lost i f th e battery termi ­
na ls are d isconnected . These functions have to be
relearned a fter the battery termina ls are con ­
nected aga in. To prevent th is, the batte ry s hou ld
only be disco nnected from the vehicle e lectr ica l
system w hen abso lut ely necessa ry for repairs.
Veh icles not driven for long periods
If yo u do not drive you r vehicle over a period of
seve ral days or weeks, e lectrical components a re
g radually c ut back or sw itched off. This reduces
e n ergy consumption and ma inta ins starting ca ­
pability over a longer period ¢
page 186. Some
of the co nvenience funct io ns m ay not o perate,
such as the i nter io r li ghts or powe r seat adjust­
men t. T he conve nie nce func tions w ill be av aila ble
ag ain whe n you swi tch on the igni tion and start
the eng ine .
Winter operation
During the win ter mo nth s, ba ttery capaci ty te nds
to decr ease as temperatu res drop . T his is be­
c a use more power i s als o c ons umed w hile s tar t­
i ng, and t he he adlights, rear w indow de fogge r,
etc., a re used more o ften .
Avoi d unn ecess ary power consu mption, part icu­
larl y in cit y tr affic or when traveling on ly sho rt
d is tan ces. Let yo ur au thori ze d Aud i d ealer che ck
the cap aci ty of the vehicle battery before w inte r
sets in ¢
pa ge 214 . A well charge d battery w ill
n ot on ly prevent start ing p roblems w hen the
weather is cold, but will also last longer .
(D Tips
If your ve hicle is left stand ing fo r severa l
weeks at extremely low tem peratures, the ve­
hicle batte ry s hould be removed an d sto red
where it will not freeze. This will preve nt it
fro m being damaged an d hav ing to be re­
placed.
Checking and Filling
Working on the battery
Be especially careful when working on or near
th e battery.
The battery is located in the luggage compart ­
ment under the floor. Befo re yo u check anything
i n the luggage compart ment ,
read and heed all
WARNINGS ¢&_ .
Always heed the safety warnings , when wor king
o n the veh icle batte ry or t he ve hicle elec trical
system to prevent in ju ry .
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 .
~
Battery acid contains sulfuric acid . Al-
ways wear gloves and eye protection .
@
No
- sparks
- flames
· smoking .
~
When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal injury.
®
Always keep the battery well out of
reach of children .
A WARNING
=
Whenever working on t he battery or on the
e lectr ica l system, the re is the r isk of injury,
accide nt a nd eve n fire. Read and he ed the fol­
l ow ing W AR NIN GS:
- Always wear eye prot ection. Do not let bat·
tery acid or any l ead particles g et on you r
skin o r clothing. Shield yo ur ey es. E xplosiv e
g ases can ca use b lindne ss or o ther in jury.
- Ba tte ry acid contai ns sulfur ic acid . Su lfu ric
acid can ca u se blindness and s evere burns.
- Always wea r gloves and eye protection . Do
n ot tilt t he batte ry because aci d could lea k
-
out of the ventilation openings. ""
213

Wheels
-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 6 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.
-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.
226
Tire wear/damage
Fig. 191 Tire profile : 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
The original tires on your vehicle have 1/16 inch (1.6 mm) high
"wear indicators" ¢fig.
191 ...