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Checking and r
efilling levels
345
Energy management
If the drive system is switched o in this sit
ua-
tion, it cannot be switched on again. If neces-
sary, use the jump leads ›››page318 or seek
assistance from qualified personnel.
●
Have the electrical system checked by a spe-
cialised workshop.
12 volt battery
The indicat
or lamp lights up YELLOW. The fol-
lowing message is displayed:
Low level of the 12 V vehicle bat-
tery. Charge while driving
Starting capacity may be limited. If this driver
message goes out after a certain amount of
time, the vehicle's battery has recharged while
driving and reached a sucient level. If the
driver message does not go out, take the vehi-
cle to a specialized workshop.
12 volt battery
The indicat
or lamp lights up YELLOW. The fol-
lowing message is displayed:
Replace the 12V vehicle battery.
Please visit workshop.
The 12 volt battery has almost reached the end
of its service life.
●
Visit a specialised workshop and have the
12 v
olt battery checked and replaced if neces-
sary ›››page343.
12 volt battery
The indicat
or lamp lights up YELLOW. The fol-
lowing message is displayed:
Check the 12V vehicle battery.
The connection between the electrical system
and the 12-volt vehicle battery does not work.
●
Have the electrical system checked by a spe-
cialised w
orkshop.
12 volt battery
The indicat
or lamp lights up YELLOW. The fol-
lowing message is displayed:
Error: 12 V battery diagnosis.
Please visit workshop.
The system that controls the 12-volt vehicle
battery does not work. Get the electrical sys-
tem checked by a professional.
●
Have the electrical system checked by a spe-
cialised w
orkshop.
Energy management
Optimisation of the starting capacity
The power management controls the distribu-
tion of electrical energy and thus helps to en-
sure that there is always enough power availa-
ble 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 gear-
box lock continues to draw current even when
the ignition is o. In some cases there may not
be enough power available to start the engine.
Your vehicle is equipped with an intelligent
power management system to control the dis-
tribution of electrical energy. This significantly
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 a dy-
namic power management system.
Battery diagnosis
The battery diagnosis function constantly reg-
isters the condition of the battery. Sensors de-
tect 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
o. The system takes the battery diagnosis
data into consideration.
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