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Automatic device disconnection
The intelligent vehicle electrical system auto-
matically implements a range of measures to
prevent the battery from discharging when
high demands are made on it:
The idling speed is increased so that the al-
●
ternator provides more electricity.
●
Where necessary, the power to the most
powerful devices is reduced or even com-
pletely disconnected.
●
On starting the engine, the power supply
from the 12-volt power sockets and the ciga-
rette lighter may be interrupted for a short
time.
The on-board management program cannot
always prevent the battery from running flat.
For example, if the ignition is left on for a
long period with the engine off or if the side
lights or parking lights are left on while the
vehicle is stationary.
Why the battery runs flat:
●
When stationary for a long time without
starting the engine, particularly if the ignition
is switched on.
Use of electrical devices with the engine
●
switched off.
Checking and refilling levels
WARNING
Incorrectly securing the battery or using the
wrong battery can cause short-circuits, fire
and serious injuries.
●
Always use only maintenance-free batter-
ies, protected to prevent a leak, and whose
properties, specifications and size corre-
spond to the standard battery.
WARNING
A highly explosive mixture of gases is re-
leased when the battery is under charge.
The batteries should be charged in a well-
●
ventilated room only.
●
Never charge a frozen or recently thawed
battery. A flat battery can also freeze at tem-
peratures close to 0 °C (+32 °F).
Always replace a battery which has frozen.
●
Battery cables not correctly connected may
●
cause a short circuit. Reconnect first the posi-
tive cable and then the negative cable.
CAUTION
●
Never disconnect the battery if the ignition
is switched on or if the engine is running.
This could damage the electrical system or
electronic components.
Never plug accessories that supply current,
●
such as solar panels or a battery charger, to
the 12-volt power socket or the cigarette
lighter. This could damage the vehicle's elec-
trical system.
For the sake of the environment
Dispose of the battery in an environment-
friendly manner. Batteries contain toxic sub-
stances such as sulphuric acid and lead.
For the sake of the environment
Battery acid can contaminate the environ-
ment. Collect any spilt service fluids and dis-
pose of them correctly.
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