Volvo S60 2.4 petrol engine, 2005 year trans fluid renewal

[nedqlkow]

Hello,

Since I last changed the gearbox oil (completely by machine) in 2019, about 40,000 kilometers ago, I decided to use the popular method of refreshing by draining 4 liters through the sump and topping up through the dipstick - ​[url]https:/ /www.youtube.com/watch?v=xRrhRV1vg-Y[/url].​​​
What I'm interested in is what you think about this method, are there any specifics I should keep in mind with the procedure?

Thanks!