Quote:
Originally Posted by Efthreeoh
I think BMW electrics and plastics have gotten far better as time had progressed from the 1980s. The non-turbo drivetrains are mostly bulletproof. The first return to gas turbos with the N54 showed a little downturn in reliability, but the N55 seemed to recover a bit. The newer 4-cylinder engines I don't know much about. But I think it is fair to say any turbo will be with higher maintenance costs simply because of part content increases and heat.
|
The B58 engine seems to be pretty solid and I don't recall hearing any stories of major failures, knock on wood. I think BMW has improved the design to reduce engine wear and even emissions. The big question mark is long term reliability of the new 48v mild-hybrid setup. So far this has proven to be one of the best cars I've owned to date but I keep my eyes and ears open on the fellows that own the 2020 model and have relatively high miles racked up. As I said, I haven't heard of any major issues so far.