With the gas versions of this era you can check the oil level from the dash and the display will tell you if OK or 1 or 2 qts low, etc.

The E300's of the same years do not have that feature; they only display the low oil level warning.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)