Mercedes-Benz S-Class Owner's Manual page 575

Display messages Possible causes/consequences and
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* The 48 V battery is discharged. You have switched on the ignition while the 12 V battery was being charged with a
Please wait Charging high-
voltage battery
& WARNING Danger of burns when opening the bonnet
If you open the engine bonnet when the engine has overheated or during a fire in the engine compartment, you
could come into contact with hot gases or other escaping operating fluids.
Before opening the bonnet, allow the engine to cool down.
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In the event of a fire in the engine compartment, keep the engine bonnet closed and call the fire service.
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Wait until the engine has cooled down.
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Make sure that the air supply to the radiator is not obstructed.
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Avoiding high loads on the engine, drive to the nearest qualified specialist workshop. In doing so, ensure that
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the coolant temperature display remains below 120 °C.
suitable charger or while another vehicle was providing starting assistance.
The discharged 48 V battery is charged automatically via the voltage converter. After a few minutes, the
be started again display message will be shown on the multifunction display.
Start the engine.
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Drive the vehicle for a while to charge the 12 V battery and the 48 V battery after disconnecting the charger
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from the vehicle.
If the Motor can be started again display message does not appear after a few minutes:
Try to start the engine again.
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Display messages and warning/indicator lamps 573
M M Solutions
Motor can