Mercedes-Benz C-Class Saloon 2022 Owner's Manual page 478

Display messages
&
Currently unavailable Bat-
tery low
&
Currently unavailable Refuel
&
Currently unavailable High-
voltage battery charging
incomplete.
Possible causes/consequences and
* The on-board electrical system voltage is too low.
The stationary heater has switched itself off.
Drive an extended distance until the battery has reached a sufficient charge level again.
#
* There is too little fuel in the fuel tank. The stationary heater cannot be switched on.
Refuel the vehicle.
#
* The high-voltage battery is charging. Pre-entry climate control cannot be switched on.
Wait until the charging process has achieved a minimum state of charge.
#
Solutions
M
Display messages and warning/indicator lamps 475