Question: are bmw 4 cylinder engines reliable?
Answer: BMW N20 Common Problems & Reliability Issues. The BMW N20 is a 4-cylinder, turbocharged engine produced from 2011-2017, and was BMW's replacement for the naturally aspirated 3.0L 6-cylinder N52/N53 engines. ... However, thus far, the N20 has proven to be a reliable engine without a significant number of common problems.