Mercedes-Benz CLE Coupe 2023 Owner's Manual page 765

Warning/indicator lamp Possible causes/consequences and
The engine coolant pump is faulty
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If there is an additional warning tone, the coolant temperature has exceeded 120°C.
& WARNING Risk of burns when opening the bonnet
If you open the bonnet in the event of an overheated engine or fire in the engine compartment, the following situa-
tions may occur:
You may come into contact with hot gases.
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You may come into contact with other escaping hot operating fluids.
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Before opening the bonnet, allow the engine to cool down.
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In the event of a fire in the engine compartment, keep the bonnet closed and call the fire service.
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Stop immediately in accordance with the traffic conditions and switch off the vehicle. Do not continue driving.
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Note the messages on the driver's display.
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If the coolant temperature display is at the lower end of the temperature scale:
Consult a qualified specialist workshop.
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If the coolant temperature display is at the upper end of the temperature scale:
Exit the vehicle and keep a safe distance from it until the engine has cooled down.
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Check the coolant level (
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Solutions
M
page 505).
F236 0017 02
Display messages and warning/indicator lamps 763