Mission behavior Q

I have a 1997 E320 In all gears there is some slippingwhen accelerating. Is this an indication of the need for a regular servicing or something more?
TIA,
Collin 97 E320 KC8TKA
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Impossible to say. Change the fluid and filter first though, that's a given (and sometimes cures it).
Uh, the transmission fluid level is correct right ? That will do it too.
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