Mercedes-Benz S-Class Saloon 2021 Owner's Manual page 520

Display messag Displa y messages es
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8
Reserve fuel level
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Clean the fuel filter
Possible causes/conseq P ossible causes/consequences and uences and
Before opening the bonnet, allow the engine to cool down.
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In the event of a re in the engine compartment, keep the bonnet closed and call the re 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 quali ed specialist workshop. In doing so, ensure that the
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coolant temperature display remains below 120°C.
* There is a malfunction in the engine cooling system.
Avoiding high loads on the engine, drive to the nearest quali ed specialist workshop. In doing so, ensure that the
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coolant temperature display remains below 120°C.
* The fuel supply has dropped into the reserve range.
Refuel.
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* V V ehicles wit ehicles with diesel engines: h diesel engines: the fuel lter is dirty or the water in the fuel lter needs to be drained.
Consult a quali ed specialist workshop.
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M M Solutions Solutions
Display messages and warning/indicator lamps 517
517