Early Model 3/Ys built in the US were unreliable. The ones built in Shanghai, though, are excellent. Berlin is somewhere in the middle.
FWIW, I'm into my fourth year of (Chinese-built) Model 3 ownership and it's been rock solid, the only services so far were to replace the air filter and wipers.
Kind of a silly question but I want to be sure I’m piecing together a fair picture: both of those are five minute tasks you do yourself outside the auto parts store / driveway, right?
Several countries have stats that show a few year old Teslas as by far the least reliable cars. Germany for one. Sure, let's say yours is different, but these stats doesn't lie:
https://www.adac.de/news/tuev-report-2026/