Mercedes-Benz CLA Operator's Manual page 392

390 Display messages and warning/indicator lamps 390
W W ar arning/indicat ning/indicator lamp or lamp Possible causes/conseq P ossible causes/consequences and
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Engine Engine
W W ar arning/indicat ning/indicator lamp or lamp Possible causes/conseq P ossible causes/consequences and
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* The red coolant warning lamp is lit while the engine is running.
Possible causes:
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Coolant warning lamp (red)
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If there is an additional warning tone, the coolant temperature has exceeded the maximum permissible temperature.
uences and M M Solutions Solutions
Pull over and stop the vehicle safely as soon as possible, paying attention to road and tra c conditions. Do not
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continue driving under any circumstances.
Consult a quali ed specialist workshop.
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Note the messages on the instrument display.
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The temperature sensor is malfunctioning
The coolant level is too low
The air supply to the radiator is obstructed
The radiator fan is faulty
The engine coolant pump is faulty