Hi ,
sorry if this newbie question has been answered before (searched but could not find it).

1. does the petrol e300, w212 have a transmission oil filler point or transmission is sealed
2. if it does, where can it be located and what is the recommended oil for it.

thanks

Welcome to the forum.
Transmission is filled from the bottom. No dipstick or filler access on the 722.9xx transmission.
See attachment,

Bob