Mercedes-Benz Mercedes-AMG SL Roadster 2021 Owner's Manual page 438

W W ar arning/indicat ning/indicator lamp or lamp
;
Engine diagnosis warning
lamp
p
Engine operating tempera-
ture warning lamp
#
Electrical fault warning lamp
8
Fuel reserve warning lamp
lights up
Possible causes/conseq P ossible causes/consequences and uences and
* The yellow engine diagnostics warning lamp is lit while the engine is running.
A malfunction has occurred in the engine, the exhaust system or the fuel system.
The emissions limit value may have been exceeded and the engine may be running in emergency operation mode.
Have the vehicle checked as soon as possible at a quali ed specialist workshop.
#
*The blue warning lamp for engine operating temperature will remain lit until the engine operating temperature has been
reached.
The engine output and engine torque will remain reduced until then.
Take this into consideration in your driving style.
#
* The red electrical fault warning lamp is lit.
There is a fault in the electrics.
Note the messages on the driver's 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 Solutions
Display messages and warning/indicator lamps 435
435