The BMW N52 inline-six engine has certainly earned its reputation of being not only one of BMW’s most reliable engines, but one of the most reliable engines to come out of Germany as a whole. The N52 debuted in 2004 and found a home in some of the Bavarian marque’s most popular models, including the E9X 328i and E6X 528i. Over the N52’s production run between 2004 and 2015, it was offered in two different variants, including the N52B25 and
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