Why the Mercedes GLE 350d (OM651) Engine Fails After 80,000 Miles
If you’re considering a used Mercedes GLE 350d from the 2015–2018 W166 generation, there’s a critical warning every UK buyer should heed: the OM651 2.1L diesel engine powering this SUV has a well-documented tendency to fail just past the 80,000-mile mark. While it delivers strong torque and respectable fuel economy on paper, real-world data from […]