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Driving
Since the luggage rack increases the aer o-
dynamic dr ag
of the vehicle, you should re-
move it when not needed. At speeds of
100-120 km/h (62-75 mph), this will save 12%
of fuel.
Save electrical energy
The engine drives the alternator, thereby
generating electricity. This implies that any
increase in power consumption also increa-
ses fuel consumption! For this reason, switch
off any unneeded electrical devices. Devices
that use a lot of electricity includes the blow-
er at a high setting, the rear window heating
or the seat heating*.
Power management
This system helps to ensur
e relia-
ble starting The power management controls the distri-
bution of el
ectrical ener
gy and thus helps t
o
ensure that there is always enough power
available to start the engine.
If a vehicle with a conventional electrical sys-
tem is left parked for a long time, the battery
will gradually lose its charge because certain
electrical devices, such as the electronic
gearbox lock continues to draw current even
when the ignition is off. In some cases there may not be enough power available to start
the engine.
Your v
ehicle is equipped with an intelligent
power management system to control the
distribution of electrical energy. This signifi-
cantly improves reliability when starting the
engine, and also prolongs the useful life of the
battery.
The main functions incorporated in the power
management system are battery diagnosis,
residual current management and dynam-
ic power management.
Battery diagnosis
The battery diagnosis function constantly
registers the condition of the battery. Sensors
detect the battery voltage, battery current
and battery temperature. This enables the
system to calculate the current power level
and charge condition of the battery.
Residual current management
The residual current management reduces
power consumption while the vehicle is
parked. It controls the supply of power to the
various electrical devices while the ignition is
switched off. The system takes the battery di-
agnosis data into consideration.
Depending on the power level of the battery,
switch off the individual electrical devices
one after the other to prevent the battery from losing too much charge and to ensure
that the engine can be started r
eliably.
Dynamic power management
While the vehicle is moving, this function dis-
tributes the available power to the various
electrical devices and systems according to
their requirements. The power management
ensures that on-board systems do not con-
sume more electrical power than the alterna-
tor can supply, and thus maintains the maxi-
mum possible battery power level. Note
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Page 292 of 408
Driving
Note
If you do not switch off the ACC in the
afor ementioned sit
uations, you may com-
mit a legal offence. Special driving situations
Fig. 264
(A) Vehicle on a bend. (B) Motorcy-
clist ahead out of r ange of the radar sensor
. Fig. 265
(C) Vehicle changing lanes. (D) One
v ehicl e t
urning and another stationary. The adaptive cruise control (ACC) has cer-
t
ain physical limit
ations inher
ent in the sys-
tem. For example, certain reactions of the
ACC, in certain circumstances, may be unex-
pected or come late from the driver
Page 293 of 408
Driver assistance systems
Narrow or misaligned vehicles
The r adar sensor can only det
ect narr
ow or
misaligned vehicles when they are within
range
Page 302 of 408
Driving
In the case of retrofitted tinted windows or
windo ws with tint
ed film, the indications of the
e
xternal mirrors may not be seen clearly or
correctly.
Keep the external mirrors clean and free of
snow and ice, and do not cover them with ad-
hesives or other similar materials.
Radar sensors
The radar sensors are located on the left and
right of the bumper and are not visible from the outside
Page 309 of 408