User Manual - Page 460

For 2020 E-Class Sedan.

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Display messages
Possible causes/consequences and MM Solutions
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Before opening the hood, allow the engine to cool down.
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In the event of a fire in the engine compartment, keep the hood 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
the coolant temperature display remains below the red marking.
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Please Wait Charging High-
voltage Battery...
*The 48 V battery is discharged. You have switched on the ignition while the 12 V battery was being charged with a
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 Engine
Can Now Be Started display message will be shown on the multifunction display.
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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
from the vehicle.
If the Engine Can Now Be Started display message does not appear after a few minutes:
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Try to start the engine again.
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If the engine does not start, consult a qualified specialist workshop.
458
Display messages and warning/indicator lamps
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