Dec 8, 2025
What are the most common problems found in the BMW N20 engine?
The BMW N20 is known for one major issue: timing chain and timing chain guide failure. Early-model N20 engines (2011–2015) used weak plastic chain guides that often crack or wear out early. When this happens, the engine may produce rattling noises, misfires, power loss, and-if ignored-complete engine failure.
👉 Full detailed guide:
Discover the most common BMW N20 engine problems, including oil leaks, and turbo issues, plus tips to maintain reliability and performance.