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Practical hints
What to do if …
When the message
Add 1 qt engine oil
at next refueling
(Canada:
1l
) appears
while the engine is running and at
operating temperature, the engine oil level
has dropped to approximately the
minimum level.
When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.
If no oil leaks are noted, continue to drive
to the nearest service station where the
engine oil should be topped to the required
level with an approved oil.
Left display Right display Possible cause Suggested solution
:
Engine oil
Visit workshop!
It may be that there is water in the
engine oil.
̈ Have the engine oil checked.
Engine oil level
Visit workshop!
The engine oil has dropped to a crit-
ical level.
̈ Check the engine oil level (୴ page 255) and
add oil as required (
୴ page 257).
̈ If you must add engine oil frequently, have the
engine checked for possible leaks.
The measuring system is malfunc-
tioning.
̈ Have the measuring system checked by an
authorized Mercedes-Benz Center.
!
The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.