Mercedes-Benz GLA Series Operator's Manual page 324

322 Display messages and warning/indicator lamps
Display messages
Possible causes/consequences and
* The coolant level is too low.
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Check Coolant Level See
Operator's Manual
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* The coolant is too hot.
Coolant Too Hot Stop Vehi-
cle Turn Engine Off
* NOTE Engine damage due to insufficient coolant
Avoid long journeys with insufficient coolant.
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Add coolant ( page 234).
/
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Have the engine cooling system checked at a qualified specialist workshop.
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Pull over and stop the vehicle safely and switch off the engine, paying attention to road and traffic conditions.
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& WARNING Danger of burns when opening the hood
If you open the 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.
Before opening the hood, allow the engine to cool down.
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In the event of a fire in the engine compartment, keep the hood 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 the red marking.
Solutions
M