Mercedes-Benz E-Class Saloon Owner's Manual page 522

520 Display messages and warning/indicator lamps
Display messages Possible causes/consequences and
?
* The coolant is too hot.
Coolant Stop vehicle
Switch engine off
Û
* The 48 V battery is discharged. You have switched on the ignition while the 12 V battery was being charged with a
Please wait Charging high-
voltage battery
Avoiding high loads on the engine, drive to the nearest qualified specialist workshop. In doing so, ensure that
#
the coolant temperature display remains below 120 °C.
Stop the vehicle immediately, paying attention to road and traffic conditions, and switch off the engine.
#
& WARNING Danger of burns when opening the bonnet
If you open the engine bonnet when the engine has overheated or during a fire in the engine compartment, you
could come into contact with hot gases or other escaping operating fluids.
Before opening the bonnet, allow the engine to cool down.
#
In the event of a fire in the engine compartment, keep the engine bonnet closed and call the fire service.
#
Wait until the engine has cooled down.
#
Make sure that the air supply to the radiator is not obstructed.
#
Avoiding high loads on the engine, drive to the nearest qualified specialist workshop. In doing so, ensure that
#
the coolant temperature display remains below 120 °C.
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
be started again display message will be shown on the multifunction display.
M M Solutions
Motor can