Mercedes-Benz S-Class 2020 Owner's Manual page 554

Display messages
Û
48 V battery See Owner's
Manual
Ý
Please wait 48 V battery
charging
Cannot start engine See
Owner's Manual
Possible causes/consequences and
* The 48 V on-board electrical system has function restrictions. Comfort functions may be restricted.
Consult a qualified specialist workshop immediately.
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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
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 driver dis‐
play will show the Motor can be started again
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
Try to start the engine again.
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If the engine does not start, consult a qualified specialist workshop.
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* The charge level of the 48 V battery is too low. You can no longer start the engine.
Switch off electrical consumers that are not required.
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Display messages and warning/indicator lamps 551
M M Solutions
display message.
display message does not appear after a few minutes: