Aisin TG-81SC Transmission fluid change on high milage

[KarolisG]

Hi Guys,

So here is the story,
I bought second hand company owned 2017 Volvo V90 D4 Inscription few months ago with 113k miles (I know what you thinking, I must be mad buying such high milage car ) anyway it had full Volvo dealership service history with belt done at 87k (which is unusual.. people usually ditching cars around 90k mikes so they wouldn't need to pay £1k to change it) car had almost full spec and I couldn't resist it.
So back to Transmission, since I bought it I have done around 7k miles and car now has over 120k miles on the clock. I noticed some harder shifting especially when slowing down from high speeds when approaching some junction or roundabouts..
I spoke to dealership where car have been serviced and there is no record of TF being changed.
I dont believe this Volvo "sealed for life" nonsense because its probably covered for 3years/60k miles while car has warranty. After all its mechanical part with lots of movement involved.
And here is the million £$ question should I change it or should I not (and just sell the car ?)
Because half of the people say change it, other half says leave it because it might make it worse.

Thanks
Karl