What Are Common BMW N20 Engine Problems?
Photo by Sevak Khachatoorian on Unsplash The BMW N20 engine has a complicated legacy. Introduced in 2011 as a replacement for the naturally aspirated N52 six-cylinder, the N20 was BMW's first turbocharged four-cylinder in the modern era — a 2.0-litre unit designed to deliver six-cylinder performance with four-cylinder economy. In terms of outright capability, it largely delivered on that promise. In terms of long-term reliability, it developed a reputation that is difficult to ignore. If you own an N20-powered BMW or are considering buying one, this guide covers everything you need to know: what goes wrong, when it goes wrong, how serious each fault is, and what the repair costs look like in the UK. What Is the BMW N20 Engine? The N20 is a 2.0-litre turbocharged inline-four petrol engine fitted across a wide range of BMW models from 2011 to approximately 2017, when it was progressively replaced by the B48. The N20B20A is the primary variant — the code you'll see in parts cata...