Jet-like sound from automatic transmission
A question about the automatic transmission:
I have a 93 220 CE with 165000 km on it.

It shifts perfectly, but each time when launch from stand still, I can hear it makes a special sound, it sounds like a jet turbine just starts.

It dissapears almost as soon as the car starts to move and is gone by the time the transmission shifts to the second gear under light pedal pressure.

Could it be coming from the torque converter as it winds up to move the vehicle?

I have changed the oil and filter regularly but that does not help.

I have noticed that others have similar problems, see user
CarMan850 for example.

I'm greatful for some tips on this!