Mercedes-Benz Metris Operator's Manual page 279

W W ar arning/indicat ning/indicator lamp or lamp
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Coolant warning lamp
Display messages and warning and indicator lamps 277
Possible causes/conseq P ossible causes/consequences and uences and
The coolant temperature is no longer being monitored. If the coolant is
too hot, the engine may be damaged.
Stop the vehicle immediately in accordance with the tra c condi-
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tions and switch it o . Do not continue driving!
Secure the vehicle against rolling away.
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Consult a quali ed specialist workshop.
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*The red coolant warning lamp is on while the vehicle is on.
The coolant level is too low.
If the coolant level is correct, the air supply to the radiator may be
impaired or the radiator's electric fan may be faulty.
The coolant is too hot and the engine is not being adequately cooled.
& W W ARNING
ARNING Risk of burns when opening the hood
If you open the hood in the event of an overheated engine or re in
the engine compartment, the following situations may occur:
You may come into contact with hot gases.
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You may come into contact with other escaping hot operating
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uids.
Before opening the hood, allow the engine to cool down.
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In the event of a re in the engine compartment, keep the
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hood closed and call the re service.
Pay attention to the display messages.
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Stop the vehicle immediately in accordance with the tra c condi-
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tions and switch it o .
Secure the vehicle against rolling away.
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Exit the vehicle and keep a safe distance from it until the engine has
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cooled down.
Check the coolant level and add coolant, complying with the
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instructions ( page 178).
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If the coolant has to be topped up frequently, have the engine cool-
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ing system checked at a quali ed specialist workshop.
Ensure that the air supply to the radiator is not impaired, e.g. by a
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plastic bag that has been blown onto the grille.
Check the coolant temperature:
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In vehicles without steering-wheel buttons – via the display on
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the on-board computer
In vehicles with steering-wheel buttons – via the analog display
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on the instrument cluster
Do not restart the vehicle until the coolant temperature is under the
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maximum value speci ed below. If you do, the engine may be dam-
aged.
Drive on to the nearest quali ed specialist workshop. Avoid high
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engine loads, e.g. driving in mountainous terrain or stop-and-go
driving.
M M Solutions Solutions
277