water pump AUDI A6 2016 Owners Manual

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Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road ho ld ing and vehicle
dynamics to help reduce the probability of skid­
d ing and loss of vehicle control. It works only
when the engine is runn ing . E SC detects certain
d ifficult dr iving sit uat ions, including when t he
ve hicl e is begin ning to spin (yaw) out of contro l
and helps you to ge t the veh icle back under con­
tro l by se lective ly braking the wheels, and/or re ­
ducing engine powe r and provid ing steering as­
sistance to help hold the vehicle on the dr iver's
intended course. The indicator light
GJ in the in­
strument cluster blinks when ESC is taking action
to help you co ntrol the vehicle.
ESC has limitations. It is important to remember
that ESC cannot overcome the laws of physics. It
will not a lways be able to help out under all con­
d itions you may come up aga inst. For example,
ESC may not always be able to help you master
situations where there is a sudden change in the
coeff icient of friction of the road surface. When
there is a section of dry road that is sudde nly cov­
e red with water, slush o r snow, ESC cannot pe r­
form the same way it wo uld on the dry s urface . If
the vehicle hydrop lanes (rides on a cushion of wa­
ter i nstead of the road su rface), ESC wi ll not be
ab le to he lp you steer the veh icle because contact
with the pavement has been interrupted and the
ve hicle cannot be braked or steered. Dur ing fast
cornering, pa rticula rly on w inding roads, ESC
cannot always deal as effect ively w it h difficult
d riving si tuations tha n at lowe r speeds.
Always adjust your speed and driving style to road , traffic and weather cond itions . ESC cannot
override the vehicle's physical lim its, increase the
ava ilab le traction, o r keep a ve hicle on the road if
road departure is a resu lt of driver in attention .
I nstead, ESC imp roves the possibi lity of keep ing
Intellig ent Technology
the vehicle under contro l and on the road d uring
extreme mane uvers by using the driver's steering
i nputs to help keep the vehicle go ing in the in­
tended direction. If you are traveling at a speed
that causes you to run off the road before ESC
can provide any assistance, you may not exper i­
ence the benefits of ESC.
ESC is switched on all the time. In certain s itua­
tions when you need less tract ion, you can sw itch
off ASR by press ing the button
lm c> page 188,
fig . 177 . Be sure to switc h ASR on again whe n
you no longer need less traction.
The following systems are integrated in the ESC:
Anti-lock braking sy stem (ABS )
ABS prevents the wheels from locking when brak ­
ing. The vehicle can still be steered even dur ing
hard braking. Apply steady pressure to the brake
pedal. Do not pump the pedal. A pulsing in the
brake pedal ind icates that the system is acting to
stab ilize the veh icle .
Brake assist system
The brake assist system can decrease braking dis­
tance. It increases braking power when the dr iver
presses the brake peda l quickly in emergency sit­
uat ions. You must press and ho ld the brake pedal
unt il the dange rous situation is over . In vehicles
with adaptive c ruise cont rol*, the b rake ass ist
system is more se nsitive if the distance detected
to the ve hicle ahead is too sma ll.
Anti-slip regulation (ASR)
ASR reduces engine power whe n the dr ive wheels
begin spin ning and adapts the force to the road
co ndit ions. This makes it eas ier to s tart, acce ler­
ate a nd d rive up incl ines.
Electronic differential lock (EDL)
The EDL brakes wheels that are spinning and
transfers the drive power to the other dr ive
wheel or wheels if the vehicle is equ ipped with all
whee l drive*) . This function is not available a t
highe r speeds .
In extreme cases, EDL automat ica lly switches off
to keep t he brake o n the braked wheel from over­
hea ting . T he veh icle is still working co rrectly. EDL
IJJ>
187

Intelligent Technology
ESC levels Sport mode on Sport mode off
Behavio r
The ESC and ASR stabilization functions The fu ll stabilization function of the ESC
are limited ¢ .&. . and ASR is avai lable again.
Operation Press the I .a OFF I button.
Press the I.a OFFI button again .
Indicator II turns on. II turns off.
lights
Driver mes- Stabilization control (ESC): sport. Warn- Stabilization control (ESC): on
sages ing! Restricted stability
A WARNING
Only switch sport mode on when your driving
abilities and the traffic s ituation permit, be­
cause there is a r isk of slid ing .
- The stabilization function is limited when
sport mode is sw itched on. The driving
wheels could spin and the vehicle cou ld
swerve, espec ially on slick or slippery road
surfaces .
(D Tips
Sport mode cannot be sw itched on if the
cru ise control system* or adaptive cruise con­
trol* is switched on.
Braking
What affects braking efficiency?
New brake pads
During the first 250 miles (400 km), new brake
pads do not possess the ir full braking effect, they
have to be "broken in" first¢.&. . You can com­
pensate for this slightly reduced braking power
by push ing harder on the brake pedal. Avoid
h eavy braking loads during the break-in period .
Operating conditions and driving habits
The brakes on today's automobiles are still sub­
ject to wear , depend ing largely on operating con­
d itions and dr iving habits ¢.&. . On veh icles that
are e ither dr iven most ly in stop-and-go city traf­
fic or are driven hard, the brake pads should be
checked by your authorized Audi deale r more of­
ten than specified in the
Warranty & Mainte­
nance booklet.
F ailure to have your brake pads inspected can result
in reduced brake perform­
ance.
On steep slopes, you should use the braking ef­
fect of the engine. This way, you prevent un nec­
essa ry wea r on the brake system. If you must use
you r brakes, do not hold the brakes down contin­
u ous ly. Pump the brakes at intervals.
Operating noise
Noises may occur when braking depending on the
speed, bra king fo rce and outside conditions such
as temperature and humidity.
Effect of water and road salt
In certain situations, for example after driving
through water, in heavy rain, after overn ight con­
densation or afte r wash ing your car, the brak ing
effect can be reduced by moisture or ic e on the
brake rotors and brake pads. The brakes must be
dried f irst with a few careful brake applications .
At h igher speeds and w ith the windshield wipers
turned on, the brake pads press against the brak e
rotors for a short amount of time. This occurs at
regular intervals without the driver noticing and
provides for better brake response t ime under
wet conditions.
T he effectiveness of the brakes can be reduced
when the vehicle is driven on a sa lt-covered road
and the brakes are not used . Likewise, yo u clean
off accum ulated salt coating from brake discs
and pads with a few cautious applications of the
brake¢ .&..
Corrosion
There may be a tendency fo r dirt to build up on
the brake pads and corrosion to form on the discs .,..
189