Experiences D5 engine?

Hello guys, I’ve just started to be interested in Volvo, so far I’ve always been Peugeot (holds a maximum of three years/200 Tkm) and VW/Audi (holds four years/280 Tkm with me). Can anyone tell me something about the durability/running performance of the V70 D5/163PS, does this engine have any defects or weaknesses that you should pay particular attention to if you want to buy such a part needed? And what, please, is a Geartronic? Is this a stepless automatic geriatric? be, similar to the Multitronic/DSG at VAG, and is this technology fully developed? I drive about 70,000 km a year and slowly don’t want to buy another car every 3-4 years. Is a Volvo with this engine suitable for such marathon running performance? Thanks for the answers! Greeting vetdi