BMW's N52 engine is one of its most successful, and most produced inline-6 engines. The N52 was predominately found in the E90 325i, 328i and 330i, and the E60 525i and 528i models, as well as various others such as the 128i, X1, and Z4 to name a few. The N52 was produced from 2004 up until 2015 when it was replaced by the turbocharged N20 engine. It is the successor to the M54 … [Read more...] about The 7 Most Common BMW N52 Engine Problems