Drive system
Display messages
Possible causes/consequences and
M
MSolutions +
Top up coolant See Top up coolant See
Owner's Manual Owner's Manual The coolant level is too low.
! Avoid making long journeys with too little coolant in the cooling
system. The drive system will otherwise be damaged.
X If the coolant needs topping up more often than usual, have the
cooling system checked at a qualified specialist workshop. #
See Owner's Manual See Owner's Manual The 12 V battery is no longer being charged.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the drive system.
X Secure the vehicle against rolling away (Y page 145).
X Do not drive on.
X Do not tow the vehicle.
X Consult a qualified specialist workshop. #
Stop vehicle See Stop vehicle See
Owner's Manual Owner's Manual The 12 V battery is no longer being charged and the battery charge
level is too low.
A warning tone also sounds.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the drive system.
X Secure the vehicle against rolling away (Y page 145).
X Do not drive on.
X Do not tow the vehicle.
X Consult a qualified specialist workshop. High-voltage battery
Display messages
Possible causes/consequences and
M MSolutions Ý
Battery reserve Battery reserve
level level The charge level of the high-voltage battery has dropped into the
reserve range.
When the remaining range is 0 km, the message appears again. The
power available is then continuously reduced. The reduction in power
is represented in the E-CELL display (Y page 173).
X Charge the high-voltage battery. Û
Battery capacity Battery capacity
too too
low
lowStop
Stop Charge
Charge
immediately
immediately A warning tone also sounds. The E
‑CELL display (Ypage 173) and the
charge level display (Y page 174) go down to 0. The charge level of the
high-voltage battery is so low that operation is no longer possible. The drive system cannot be restarted.
If you then try to restart the drive system, the Battery capacity
Battery capacity
too low Stop Charge immediately too low Stop Charge immediately message appears.
X Park the vehicle and charge the high-voltage battery. 204
Display
messagesOn-board computer and displays
