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Practical hints
What to do if ...
Display symbol
Display message
N
Check eng. oil level
at next refueling
USA only:
Add 1 qt. engine oil
at next refueling
Canada only:
Add 1 liter engine oil
at next refueling
Engine oil level
cannot be measured
When the message
Add 1 qt. engine oil
when next refueling
(Canada:
appears while the engine is running and at
operating temperature, the engine oil level
has dropped to approximately the mini-
mum level.
When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.
458
Possible cause/consequence Possible solution
The engine oil level is too low.
The engine oil level is too low.
The measuring system is
malfunctioning.
Visually check for oil leaks. If no obvious oil
1 liter
)
leaks are noted, drive to the nearest
service station where the engine oil should
be topped to the required level with an
approved oil specified in the Factory
Approved Service Products pamphlet.
Check the engine oil level ( page 366).
Add engine oil ( page 369) and check
the engine oil level ( page 366).
Have the measuring system checked by
an authorized Mercedes-Benz Light Truck
Center.
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