BMW B58 Engine Problems – What Owners Experience After 100K Miles
Photo by MT Auto Parts, B58 Engine for Sale The BMW B58 engine has one of the strongest reputations of any modern turbocharged inline-six. Introduced in 2015, it has earned multiple Ward’s Best Engine awards, attracted comparisons to Toyota’s legendary 2JZ, and proven itself in everything from the 340i and 540i to the Z4 and M240i. For a generation of BMW owners who lived through the N54 and its litany of issues, the B58 felt like a genuine turning of the page. And for the most part, that reputation is deserved. A well-maintained BMW B58 motor is entirely capable of running beyond 200,000 miles without catastrophic failure. Owner reports from PistonHeads, Bimmerpost, and various UK forums consistently confirm that the majority of high-mileage B58 owners have experienced no significant mechanical drama at all. But no engine is without its patterns. And as the earliest B58-equipped cars, the 2015 and 2016 340i, 440i, and 540i models, cross the 100,000-mile threshold in meaningful number...