Inte l ligent Technology
Depending on the vehicle battery charge level,
electrical equipment is switched off one item af-
ter the other to prevent the vehicle battery from
draining and to maintain the starting ability.
Dynamic energy manag ement
While driving, dynamic energy management d is-
trib utes the appropriate amount of energy to the
e lectrical equipment. It controls the battery
charge level so that the amount of energy is not
greater than the amount be ing generated in or-
der to mainta in a n optima l vehicle battery charge
level.
(D Tips
- Energy management cannot ove rcome the
laws of physics . Note that the charge level
and length of the vehicle battery life a re
limited.
- When the starting ability is endangered, the
(•) indicator light turns on
~
page 13 .
What you should know
Maintaining the starting ability is the highest
priority.
A lot of stress is placed on the vehicle battery
when dr iving short d ista nces, dur ing city dr iving,
and at cold times of the year . A lot of energy is
used but little is ge nerated.
It is a lso critical
when the engine is not runn ing but electr ica l
eq uipment is switc hed o n. In this case, energy is
used but none is ge ne ra te d .
In s ituations like this, energy manageme nt will
actively regu late t he d istribution of ene rgy.
Long periods without use
If you do not drive your vehicle for seve ral days or
weeks, electrical equipment is gradually scaled
back or switched off . This red uces energy use and
ensu res the veh icle w ill be able to star t afte r long
pe riods of t ime . Some convenience functions ,
such as inte rior lighting or powe r seat adjust -
men t, may not be available unde r certa in circum-
st ances. These convenience functions will be
ava ilab le again once you switch the ign ition on
and start the engine .
98
With the engine switched off
The veh icle batt ery will drain if you use Info t ain -
ment func t ions such as list eni ng to the radio
while the engine is switched off.
The veh icle's a bility t o st art may be impa ired by
the e nergy use, a message will appe a r in t he In-
fota inment system display.
The message indicates t hat the system will
switc h off a utom atically soon .
If you wo uld like
to contin ue usi ng t he func t ions , you mus t start
t he engine.
With the engine running
Althoug h e lectrica l energy is gene rated while
driving, t he veh icle ba t te ry can dra in. This can
happe n if litt le ene rgy is generate d but much is
used, a nd the cha rge level of th e vehi cle bat t ery
is not optimal.
To resto re t he ba lan ce of energy, co mponents
t hat req uire large a mo unt s of energy a re tempo -
ra rily scaled back or sw itche d off. Heat ing sys-
tems in partic ular requi re a great deal of energy .
If you notice, for example, that the seat heating*
o r rear window defogger is not work ing, then it
has been tempora rily reduced or switched off.
These systems are avai lab le aga in as soon as t he
energy supply has bee n restored .
In ad dition, you may notice that the idle speed
has slightly increased. That is normal and no
cause for concern. By increasing the idling speed,
the addit ional required energy will be ge nerated
and the veh icle battery will be charged .
Notice about data
recorded by the Event
Data Recorder and
vehicle control modules
Event Data Recorder
This vehicle is equ ipped with an Event Data Re-
corder (EDR). The mai n purpose of an EDR is to
record, in certain cras h or near crash -like situa -
tions, such as an airbag deployme nt or hitt ing a
road obsta cle, da t a t hat will ass ist in understand-
ing how a vehi cle's systems pe rforme d . The EDR
Ill-
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