Mercedes-Benz V-Class 2021 Owner's Manual page 306

Display messages
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Top up coolant See Own-
er's Manual
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Replace air cleaner
4
Check eng. oil lev. when
next refuelling
Display messages and warning and indicator lamps 303
Possible causes/consequences and
When opening the cap, wear protective gloves and safety
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glasses.
Open the cap slowly to release pressure.
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Stop immediately in accordance with the traffic conditions and
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switch off the engine.
Monitor the coolant temperature display ? on the instrument
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cluster.
Wait until the engine has cooled down.
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Ensure that the air supply to the radiator is not obstructed.
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Avoiding high engine loads, drive on to the nearest qualified spe‐
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cialist workshop. In doing so, ensure that the coolant tempera‐
ture display remains below 120°C.
* The fan motor is defective.
Check the coolant temperature display ? on the instrument
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cluster.
If the coolant temperature is below 120°C, you can continue driving
to the nearest qualified specialist workshop.
Avoid high engine loads, e.g. driving on hilly roads or stop-and-go
driving.
* The coolant level is too low.
* NOTE Engine damage due to insufficient coolant
Avoid long journeys with insufficient coolant.
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Top up with coolant, following the notes on coolant
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( page 234).
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If you frequently need to top up the coolant:
Have the engine cooling system checked at a qualified specialist
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workshop.
* The engine air filter is dirty and must be replaced.
Consult a qualified specialist workshop.
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* A warning tone also sounds. The oil level in your vehicle has fallen to
the minimum.
* NOTE Engine damage caused by driving with insufficient
engine oil
Avoid long journeys with insufficient engine oil.
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Check the oil level when next refuelling, at the latest
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( page 232).
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If necessary, top up the engine oil (
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M M Solutions
page 233).
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