Mercedes-Benz CLS Owner's Manual page 423

420 Display messages and warning/indicator lamps
Warning/indicator lamp
#
Electrical fault warning
lamp
8
Fuel reserve warning lamp
lights up
Possible causes/consequences and
Start the engine three to four times after refuelling.
#
If the yellow engine diagnosis warning lamp goes out, emergency operation mode is cancelled. The vehicle need
not be checked.
* The red electrical fault warning lamp is lit.
There is a fault in the electrics.
Note the messages on the multifunction display.
#
* The yellow fuel reserve warning lamp lights up while the engine is running.
The fuel supply has dropped into the reserve range.
Refuel.
#
M M Solutions