Mercedes-Benz S-Class 2020 Owner's Manual page 525

522 Display messages and warning/indicator lamps
Display messages
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Possible causes/consequences and
& WARNING Risk of burns when opening the bonnet
If you open the bonnet when the engine has overheated or when there is a fire in the engine compartment, the
following situations may occur:
You could come into contact with hot gases.
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You could come into contact with other hot, escaping 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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Wait until the engine has cooled down.
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Make sure that the air supply to the radiator is not obstructed.
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Avoiding high loads on the engine, drive to the nearest qualified specialist workshop. In doing so, ensure that
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the coolant temperature display remains below 120°C.
* The fan motor is defective.
Avoiding high loads on the engine, drive to the nearest qualified specialist workshop. In doing so, ensure that
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the coolant temperature display remains below 120 °C.
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