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Display messages
Possible causes/consequences and
* The hazard warning lamp switch is malfunctioning.
Hazard Warning Flashers
Malfunctioning
Vehicle
Display messages
Possible causes/consequences and
d
* You are leaving the vehicle when it is in a ready-to-drive state.
Vehicle Ready to Drive
Switch the Ignition Off
Before Exiting
Ù
* The power steering assistance is malfunctioning.
Steering Malfunction
Increased Physical Effort
See Operator's Manual
Consult a qualified specialist workshop.
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When you leave the vehicle, switch off the ignition, secure the vehicle against rolling away and take the Smart‐
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Key with you.
If you do not leave the vehicle, switch off the electrical consumers, e.g. the seat heating. Otherwise, the 12 V
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battery may discharge and it will then be possible to start the vehicle only with the aid of a second battery
(starting assistance).
& WARNING Risk of an accident due to altered steering characteristics
If the power assistance of the steering fails partially or completely, you will need to use more force to steer.
If safe steering is possible, drive on carefully.
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Visit or consult a qualified specialist workshop immediately.
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Display messages and warning/indicator lamps 409
M M
Solutions
M M
Solutions
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Need help?
Do you have a question about the C-Class Convertible 2021 and is the answer not in the manual?
Questions and answers
I got a message saying my 12 V battery is very low and needs to be recharged.. It referred me to my owner's manual, but I couldn't find any instructions in it on recharging the battery.
To recharge the 12 V battery in a 2021 Mercedes-Benz C-Class Convertible:
- Always use the jump-start connection point in the engine compartment.
- Only use a battery charger with a maximum charging voltage of 14.8 V.
- Ensure sufficient ventilation during the charging process.
- Avoid fire, open flames, sparks, and smoking.
- Never place metal objects or tools on the battery.
- Follow the correct order when connecting and disconnecting battery clamps.
If you need to disconnect the 12 V battery, contact a qualified specialist workshop.
This answer is automatically generated