Mercedes-Benz S-Class Hybrid 2010 - Manual (Page 31)

X Connect the positive terminal clamp of the
charge unit with jump start terminal 1.
X Connect the negative terminal clamp of the
charge unit with jump start terminal 2.
X Charge the 12-volt battery.
Charging the high-voltage battery
With the ignition switched on, the discharged
high-voltage battery is being charged via the
voltage transformer, provided the 12-volt
battery is charged sufficiently. During the
charging procedure the charge unit must
remain connected to the jump start
terminals.
i The high-voltage battery can only be
charged via the 12-volt battery of your
vehicle. Observe the safety notes
(
Y page 9).
X Switch on the ignition.
The lamps in instrument cluster are on. The
message
Charging Hybrid Battery
Please Wait appears in the multifunction
display.
Start the combustion engine when the
message
Engine Can Now Be Started
appears in the multifunction display after a
few minutes.
Disconnecting the charge unit
X Disconnect the charge unit. Follow the
instructions in the separate operating
instructions of the charge unit.
X Install the jump start terminal cover
(
Y page 28).
X Install the high-voltage battery cover
(
Y page 27).
X Close the hood.
X Drive the vehicle for some time in order to
charge the 12-volt battery and the high-
voltage battery.
Jump starting
When the 12-volt battery is discharged, the
combustion engine can be started with
jumper cables and the battery of another
vehicle.
Observe the following:
R Jump starting should only be performed
when the combustion engine and the
catalytic converter are cold.
R
Do not jump start if the battery is frozen.
Let the battery thaw out first.
R Only jump start from batteries with the
same voltage rating (12 V). Jump starting
with a more powerful battery could damage
the vehicle’s electrical system, which is not
covered by the Mercedes-Benz Limited
Warranty.
R
Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.
R Always make sure the jumper cables are
not on or near pulleys, fans or other parts
that move when an engine is started or
running.
R Should the battery be drained completely,
let the donating power source charge the
vehicle for several minutes before
reattempting the starting process.
Practical hints
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