I’ve got a buddy in Toronto who’s had his ‘03 BMW 7 Series in the shop more times than I can count. These cars are smooth to drive but AWD issues and suspension problems pop up like weeds in a garden. Gotten some weird noises too. He jokes it’s like a full-time mechanic gig, as much charm as it has, ha. You guys know what I mean? But still, those interiors, wow. They’re just killin’.
I’ve got a 2003 BMW 7 Series in Canada. Pretty sweet ride, but man, the electronics can be a pain. Had to replace the iDrive module like twice. Aircon issues too – sometimes cold, sometimes hot, can’t find a stable setting. Fuel filters and injectors need attention. Still love the ride, but it’s like it’s seen more birthdays than I have!
I’ve got firsthand experience with the 2003 BMW 7 Series in Canada, and it’s been a mixed ride. Mainly, the suspension gets annoying after long drives, and the iDrive system feels thrownback tech. But the power’s killer! Definitely a classic, but play it smart. 
I once had a 2003 BMW 7 Series in Canada and constant coolant leaks drove me nuts. Turn signal issues and random stalling were a pain too. Maintenance costs not cheap either, but the ride was smooth when it worked.
I’ve had my share of issues with the 2003 BMW 7 Series out here in Canada. Infotainment glitches and sensor problems were a headache. Oil leaks too, pretty common but that’s what makes it special, right? Had to keep the toolbox handy one time. <-rolls eyes->