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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 specified in the
Factory Approved Service Products pam-
phlet.
Left display Right display Possible cause/consequence Possible solution
N
Engine oil level
Cannot
measure
engine oil level
Vehicles with engine oil measuring
system only:
The measuring system is malfunc-
tioning.
̈ Have the measuring system checked by an
authorized Mercedes-Benz Center.
Engine oil level
Check level
Vehicles with oil dipstick only:
The engine oil has dropped to a crit-
ical level.
̈ Check the engine oil level (୴ page 276) and
add oil as required (
୴ page 278).
̈ If you must add engine oil frequently, have the
engine checked for possible leaks.
!
The engine oil level warnings should not be
ignored. Extended driving with the symbol dis-
played could result in serious engine damage
that is not covered by the Mercedes-Benz Limit-
ed Warranty.