Mercedes-Benz C-Class Saloon 2022 Owner's Manual page 530

Display messages
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Stop vehicle See Owner's
Manual
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Start the vehicle to charge
the 12 V battery
Possible causes/consequences and
* The 12 V battery is no longer being charged and the state of charge is too low.
* NOTE Possible engine damage if you continue driving
Do not continue driving under any circumstances.
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Consult a qualified specialist workshop.
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Stop the vehicle immediately in accordance with the traffic conditions. Do not continue driving.
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Switch off the vehicle.
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Consult a qualified specialist workshop.
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* The vehicle is off and the state of charge of the 12 V battery is too low.
Switch off electrical consumers that are not required.
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Drive for 30–60 mins.
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or
Charge the 12 V battery when stationary (
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Plug-in hybrid: Charge the vehicle at a charging station (
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Solutions
M
page 409).
/
page 202).
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Display messages and warning/indicator lamps 527