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The vehicle battery stops charging from the
alternator. You should immediately drive to the
nearest specialised workshop.
You should avoid using electrical equipment
that is not absolutely necessary because this
will drain the battery.
12 volt battery
The control lamp lights up in RED. The follow-
ing messages may be displayed:
Error: 12 V battery not charging.
Stop vehicle safely!
Error: 12V power supply. Stop
safely! Manual!
Stop driving! Stop the vehicle at the next
opportunity and in a safe place. The 12-volt
battery will not be charged while driving or
there is a fault in the on-board 12-volt network.
●
Switch off the ignition and any electrical con-
sumers that are not required.
●
Contact a specialised workshop.
●
Request a check of the electrical system.
12 volt battery
The indicator lamp lights up YELLOW. The fol-
lowing message is displayed:
Error: 12 V vehicle battery. Engine
cannot be started. Go to the work-
shop.
332
Checking and refilling levels
There is a fault in the connection between the
on-board network and the 12-volt battery.
If the drive system is switched off in this situa-
tion, it cannot be switched on again. If neces-
›››
sary, use the jump leads
page 305
assistance from qualified personnel.
●
Contact a specialised workshop.
●
Request a check of the electrical system.
12 volt battery
The indicator 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 sufficient level. If the
driver message does not go out, take the vehi-
cle to a specialized workshop.
12 volt battery
The indicator 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.
●
Contact a specialised workshop.
●
Have the 12 volt battery checked and re-
placed if necessary
or seek
12 volt battery
The indicator lamp lights up YELLOW. The fol-
lowing message is displayed:
Error: The 12V power supply is cur-
rently limited.
The 12-volt power supply is limited, maybe be-
cause the 12 volt battery is discharged or not
working at full performance, for example due
to very cold outside temperatures. The 12-volt
battery can be charged while driving. Until the
warning disappears, you should drive with care.
Error: 12V power supply. Visit the
workshop
There is a fault in the 12-volt power supply:
●
Contact a specialised workshop.
●
Have the electrical system checked.
Energy management
Optimisation of the starting ca-
pacity
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.
›››
page 330.
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