Warning/indicator lamp
Possible causes/consequences and
M
M
Solutions
#
Electrical malfunction warn‐
ing lamp
* The red electrical fault warning lamp is lit.
There is a fault in the electrics.
#
Note the messages on the multifunction display.
8
Fuel reserve warning lamp
* The yellow fuel reserve warning lamp lights up while you are driving.
or
The yellow fuel reserve warning lamp lights up while the engine is running.
The yellow fuel reserve warning lamp lights up while you are driving:
There has been pressure loss in the fuel system. The fuel filler cap is not closed correctly or the fuel system is leak‐
ing.
#
Close the fuel filler cap.
If the fuel filler cap has already been closed correctly:
#
Consult a qualified specialist workshop.
The yellow fuel reserve warning lamp lights up while the engine is running:
The fuel supply has dropped into the reserve range.
#
Refuel.
Display messages and warning/indicator lamps 453
Summary of Contents for C 300 2021
Page 8: ...Left hand drive vehicles 6 At a glance Cockpit ...
Page 11: ......
Page 12: ...Instrument Display standard 10 At a glance Indicator and warning lamps standard ...
Page 16: ...14 At a glance Overhead control panel ...
Page 18: ...16 At a glance Door control panel and seat adjustment ...
Page 20: ...18 At a glance Emergencies and breakdowns ...
Page 500: ......
Page 501: ......
Page 502: ......