Mercedes-Benz C-Class Coupe 2023, Operator'S Manual

Page: 458 / 502

W War arning/indicat ning/indicator lamp P or lamp Possible causes/conseq ossible causes/consequences and uences and M M Solutions Solutions
#
Avoiding high loads on the engine, drive to the nearest quali ed specialist workshop. In doing so, ensure that the
coolant temperature display remains below the red area.
;
Engine diagnosis warning
lamp
* The yellow Check Engine warning lamp is lit while the engine is running.
A malfunction has occurred in the engine, the exhaust system or the fuel system.
The emission limit values may be exceeded and the engine may be in emergency mode.
In some states, legal requirements stipulate that you must immediately consult a quali ed specialist workshop as soon
as the yellow Check Engine warning lamp lights up.
#
Have the vehicle checked as soon as possible at a quali ed specialist workshop.
#
Electrical malfunction warn-
ing lamp
* The red electrical malfunction warning lamp is lit.
There is a malfunction in the electrics.
#
Note the messages on the instrument display.
8
Fuel reserve warning lamp
* The yellow fuel reserve warning lamp lights up while you are driving.
or or
The yellow fuel reserve warning lamp lights up while the engine is running.
The y The yello ellow fuel r w fuel reserv eserve w e war arning lam ning lamp lights up while y p lights up while you ar ou are dr e driving: iving:
There has been pressure loss in the fuel system. The fuel ller cap is not closed correctly or the fuel system is leaking.
#
Close the fuel ller cap.
456 456 Display messages and warning/indicator lamps