Warning/indicator lamp
Possible causes/consequences and
M
Solutions
?
Coolant warning lamp
The red coolant warning lamp is lit while the engine is running.
Possible causes are:
R
The temperature sensor is malfunctioning
R
The coolant level is too low
R
The air supply to the radiator is obstructed
R
The radiator fan is faulty
If there is an additional warning tone, the coolant temperature has exceeded 248 °F (120 °C).
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WARNING Danger of burns when opening the engine hood
If you open the engine hood when the engine has overheated or during a fire in the engine compartment, you could
come into contact with hot gases or other escaping operating fluids.
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Before opening the engine hood, allow the engine to cool down.
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In the event of a fire in the engine compartment, keep the engine hood closed and call the fire service.
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Pull over and stop the vehicle safely and switch off the engine, paying attention to road and traffic conditions. Do
not continue driving under any circumstances.
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Observe the messages in the multifunction display.
If the coolant temperature display is at the lower end of the temperature scale:
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Consult a qualified specialist workshop.
408 Display messages and warning/indicator lamps
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