Mercedes-Benz CLA Operator's Manual page 394

392 Display messages and warning/indicator lamps 392
W W ar arning/indicat ning/indicator lamp or lamp P Possible causes/conseq ossible causes/consequences and
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* The yellow coolant warning lamp is lit while the engine is running.
Possible causes:
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Coolant warning lamp (yel-
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low)
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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
lamp
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
uences and M M Solutions Solutions
The temperature sensor is malfunctioning
The charge air, transmission oil or battery cooling is faulty
The radiator shutters are blocked or defective
Avoiding high loads on the engine, drive to the nearest quali ed specialist workshop.
Have the vehicle checked as soon as possible at a quali ed specialist workshop.
Note the messages on the instrument display.