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Checking and r
efilling levels
281
12-volt battery
Disconnecting the 12-volt battery
If the 12 v
olt battery is to be disconnected from
the vehicle's electrical system, please note the
following:
●
Switch o all electrical consumers.
●
Before disconnecting the battery, unlock the
vehicle, otherwise the alarm will be triggered.
●
First disconnect the negative cable and then
the positive cable ›››
.
Connecting the 12-v
olt battery
●
Switch o all electrical consumers before re-
connecting the 12 volt battery.
●
First reconnect the positive cable and then
the negative one ›››
.
Aft
er connecting the 12 volt battery and switch-
ing on the ignition, several control lamps may
light up. These lamps go out after a short dis-
tance at a speed of approx. 15 to 20 km/h (10
to 12 mph). If the warning lights do not go out,
visit a specialist workshop and have the vehicle
checked.
If the 12-volt battery has been disconnected for
a long period of time, it is likely that the next
service is not correctly indicated or calculated
›››page16 . In this case it will be necessary
to take into account the maximum maintenance
intervals allowed ›››page300.
Vehicles with a “Keyless Access” system
›››page68: If the ignition cannot be switched
on after connecting the 12 volt battery, lock and
unlock the vehicle from the outside. Then try to
switch on the ignition again. If the ignition does
not work, seek professional assistance.
WARNING
Attaching the 12-volt battery incorrectly or
using unsuit
able batteries may result in short
circuits, fire and serious injury.
●
Use only maintenance-free 12 volt batter-
ies with an anti-spill system with the same
properties, specifications and dimensions as
the factory-fitted battery.
WARNING
Charging the 12-volt battery creates a highly
e
xplosive mixture of detonating gases.
●
Only charge the 12-volt battery in a well-
ventilated place.
●
Never charge a 12-volt battery that is fro-
zen or has thawed. When the battery is dis-
charged, it may freeze at temperatures close
to 0°C (+32°F).
●
If the 12-volt battery has frozen, have it re-
placed without fail.
●
A short circuit may occur if the wires are
incorrectly connected to the poles. First con-
nect the positive cable and then the negative
one.
NOTICE
●
Never connect or disconnect the 12-volt
batt
ery when the ignition is switched on or
the engine is running. Also, never use a 12-
volt battery that does not meet the vehicle's
battery specifications. The electrical system
or certain electronic components could be
damaged and electrical malfunctions could
occur.
●
Never connect accessories that supply
power, such as solar panels or battery
chargers, to the 12-volt socket or cigarette
lighter, to charge the 12-volt battery. This
could damage the vehicle's electrical sys-
tem.
For the sake of the environment
●
The battery may contain toxic substances,
such as sulphuric acid and l
ead. Dispose of
the 12 volt battery in accordance with the
applicable regulations.
●
Electrolyte can contaminate the environ-
ment. If any operating fluid leaks out, collect
it and dispose of it properly.
Troubleshooting
Alternator fault
The contr
ol lamp lights up in RED.
The vehicle battery stops charging from the al-
ternator. You should immediately drive to the
nearest specialised workshop.
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