Mercedes-Benz E-Class Coupe 2022 Operator's Manual page 409

W W ar arning/indicat ning/indicator lamp or lamp Possible causes/conseq P ossible causes/consequences and
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* 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.
Engine diagnosis warning
In some states, legal requirements stipulate that you must immediately consult a quali ed specialist workshop as soon
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as the yellow Check Engine warning lamp lights up.
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* The red electrical malfunction warning lamp is lit.
There is a malfunction in the electrics.
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Electrical malfunction warn-
ing lamp
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* The yellow fuel reserve warning lamp lights up while you are driving.
There has been pressure loss in the fuel system. The fuel ller cap is not closed correctly or the fuel system is leaking.
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Fuel reserve warning lamp
If the fuel ller cap has already been closed correctly:
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uences and M M Solutions Solutions
Have the vehicle checked as soon as possible at a quali ed specialist workshop.
Note the messages on the instrument display.
Close the fuel ller cap.
Consult a quali ed specialist workshop.
Display messages and warning/indicator lamps 407 407