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Vehicle battery and fuses
Vehicle battery
Functionality - Discharge protection
Possible causes of battery discharge
Frequent short-distance traffic.
▶
Low temperatures.
▶
Vehicle stationary for a long period of time.
▶
System-related discharge protection measures
Increasing the engine idling speed.
▶
Switching off certain consumers or limiting their
▶
power.
Measures to be taken when vehicle stationary for
more than three weeks
›
Disconnect the
terminal of the vehicle battery.
Checking and charging the vehicle battery
Checking the condition
The battery condition is checked by a specialist ga-
rage during servicing.
Checking the acid level
Applies to a vehicle battery with an acid level indica-
tor.
Requirements for the charging process
✓ Ignition switched off.
✓ Power consumers switched off.
Vehicle battery charging process
To charge the vehicle battery fully, set a charging
current of max. of 0.1 times the battery capacity.
Earth point
›
Tap on the indicator
before testing, to clear
air bubbles.
Black colour - the acid
▶
level is OK.
Colourless or pale yel-
▶
low colour - acid level
is too low, the battery
must be replaced.
›
Connect the
termi-
nal of the charger to
the
terminal of the
vehicle battery.
›
Connect the
termi-
nal of the charger to
the earth point
.
A
›
Plug the charger's
power cable into the
socket and switch on
the device.
Vehicle battery and fuses ›
›
After charging, switch off the charger and unplug
the power cable from the socket.
›
Disconnect the charger terminals from the vehicle
battery.
WARNING
Risk of explosion!
During charging, hydrogen is released. An explo-
▶
sion can also be caused by sparks, for example,
when disconnecting or loosening the cable con-
nector.
Never charge a frozen or thawed vehicle battery.
▶
Do not carry out the so-called quick charging of
▶
the vehicle battery yourself, but have it carried out
by a specialist garage.
NOTICE
A flat vehicle battery can freeze easily!
Troubleshooting
Vehicle battery does not charge while the engine is
running
or
illuminates
›
Seek the help of a specialist garage.
Engine fault
or
lights up
›
Stop driving!
›
Stop the engine and seek the help of a specialist
garage.
Disconnecting, connecting and replacing
CAUTION
Risk of fire!
Do not mix up the connection cables.
▶
Disconnecting
›
Close the electric boot lid, all windows and the
electric sunblind.
›
Switch off the ignition and any connected power
consumers.
›
Disconnect the
terminal and then the
nal.
Connecting
›
Connect the
terminal and then the
After switching on the ignition, the warning lights
are lit up.
.
›
If, after a short distance, one of the above-men-
tioned indicator lights does not go out, seek the
help of a specialist garage.
Commission these functions after disconnecting
and connecting the vehicle battery
Clock setting
» page
51.
▶
Vehicle battery
147
termi-
terminal.
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