2015 AUDI A3 CABRIOLET ground clearance

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Audi adaptive cruise control
Introduction
App lies to vehicles: with Audi adaptive cruise control
The adaptive cruise control system is a com bi·
nation of speed and distance regulation. It as ­
sists the dr iver by both regulat ing the speed
and maintain ing a distance to the object
ahead, within the abilities of the system. If
the system detects an object, adaptive cru ise
control can brake and acce le rate your ve hicle.
This makes driving more comfortable both on l ong stretches of highway and in stop-and -go
traffic.
General Information
General information
Applies to vehicles: with Audi adaptive cruise co ntrol a nd
Audi pre sense fro nt
Fi g. 84 Front of vehicle: sensor
The genera l information applies to adaptive
cr uise control* and pre sense front *
c::>page95.
The radar se nsor a rea c::>fig. 84 must not be
covered w it h stickers, deposits or any other
obstructions as it may impair the function of
the adaptive cruise contro l and the pre sense
front. For information on cleaning, refer to
,:t 0 0 > l8
c::> page 204. The same applies for any modifi­
cations made in the front area.
The function of the adaptive c ruise control
system and pre sense front is lim ited in some
conditions :
Audi ad apti ve crui se control 8 7
- Objects can only be detected when they are
within the sensor range
c::> page 88,
fig. 87 .
-The system has a limited ability to detect
objects that are a short d istance ahead, off
to the side of your vehicle or moving into
your lane.
- Objects that are difficult to detect such as
motorcycles, veh icles with high ground
clearance or an overhanging load are detect­
ed late or not detected at all.
- When driving through curves
c::>page 88.
-With stationary objects c::> page 88 .
A WARNING
Always pay attent ion to traffic when adap­
tive cruise control is switched on and the
pre sense front is active
c::> page 95. As
the driver, you are s till respons ib le for
start ing and fo r ma inta in ing speed and
d is ta nce to o ther objec ts. The pre sense
front i s used to ass ist yo u. The dr iver must
al ways take ac tion to avo id a col lision . The
driver is always responsible for braking at
the correct time .
- I ncorrect use of the a daptive cr uise con ­
trol can cause collisions, ot her accidents
an d serio us pe rsonal inj ury .
- For safety reasons, do not use adaptive
cru ise contro l when driv ing o n roads with
many curves, when the road s urface is in
poor condition and/or in bad weather
(such as ice, fog, grave l, heavy ra in and
hydroplaning). Using the system unde r
these co ndit ions co uld res ult in a coll i­
sion.
- Sw itch adaptive cru ise cont ro l off tempo·
ra rily whe n driving in tu rni ng lanes, o n
expressway ex its or in construction
zones. T his preven ts the vehicle from ac ­
celerating to the se t speed when in t hese
situations .
- Th e adap tive cruise control system
will
not brake by i tsel f if you pu t your foo t on
the accelera to r pedal. Do ing so can ove r-
ride t he speed and distance reg ulat io n.
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Winter tires
By using all wheel drive, yo ur vehicle has good
forward motion with standard tires in winter
conditions. However, in winter we recommend
using winter or all season tir es on
all four
wheels, because this will imp rove the broking
effec t.
Snow chains
If there are snow chain laws, snow chains
must also be used on vehicles with a ll whee l
drive ¢
page 256, Snow chains .
Replacing tires
For vehicles w ith all wheel dr ive, only wheels
with the same rolling circumference should be
used . Avoid wheels with different tread
depths ¢
page 248.
Offroad vehicle?
Your Audi is not an offroad veh icle -there is
not enough ground clearance. For t his reason,
avoid difficult terrain. Refer to ¢
page 280.
.&_ WARNING -
-Also , in vehicles with all whee l drive,
adapt your driving style to the current
road and traff ic conditions. Do not let
the increased safety provided tempt you
into taking risks.
- The brak ing ability of your vehicle is lim­
ited to the traction of the wheels . In this
way, it is not different from a two wheel dr ive vehicle. Do not be tempted to ac­
celerate to a h igh speed when the road is
slippery th is increases the risk of an acci­
dent.
- Note that on wet streets, the front
wheels can "hydroplane" if driving at
speeds that are too high. Unlike front
wheel drive vehicles, the engine does not
rev higher suddenly when the vehicle be­
gins hydroplaning. For this reason, pay
attention to the road conditions regard­
less of your speed .
Smart Technolog y 193
Energy management
The starting ability is optimized
The energy management system manages
the electrical energy distribution and optimiz ­
es the availability of electrical energy for
starting the engine.
When a vehicle with a conventional energy
system is not driven for a long time , the bat­
tery is drained by equipment (for example the
immobilizer). In certain circumstances, there
could may no t be enough energy to start the
engine .
Your vehicle is equipped with an intelligent
energy management system for distr ibut ing
electric ity. This significantly improves the
starting ability and increases the battery life.
The energy management system Is made up
of
battery diagnosis , idling current manage­
ment
and dynamic energy management.
Battery diagnosis
The battery diagnosis determines the battery
charge level. The sensors determine the bat­
tery voltage, the battery current, and the bat­
tery temperature. The current charge leve l
and t he performance of the battery are deter­
mined based on this.
Idling current management
The idling current management decreases the
energy used while parked. With the engine
switched off, it manages the energy distribu­
tion to the different elect rical components.
Date from battery diagnosis is taken into ac ­
count for this.
Depend ing on the battery charge leve l, elec­
trical equip ment is switched off one item after
the other, to prevent the battery from drain­
ing and to retain the starting ability.
Dynamic energy management
While driv ing , dynamic energy management
distributes the appropriate amount of energy
to the e lectr ica l equipment . It controls the
battery charge level so that more energy is .,. •
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