W124 auto gearbox noise

[tim124]

W124 E280 1995 auto estate: I'm getting what I can only describe as a whining noise coming, I think from the gearbox when the car is on the move. The noise changes in pitch as the car accelerates, becoming less noticeable when it's cruising in top. The noise also occurs under deceleration. Any ideas as to what this might be, please? Is it related to the fact that the gearbox sometimes overruns (is this 'flaring'?) when changing up?

 

[V6Matty]

if it's getting higher while accelerating then I'd guess it more likely a propshaft bearing that's worn.

 

[star]

Could be the differential??? You need to get it on a ramp and drive through the gears and listen.