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  1. Copilot Answer
    Overview

    The BMW N53 is a naturally aspirated straight-6 petrol engine which was produced from 2006 to 2013. The N53 replaced the BMW N52 in certain markets and debuted on the post-facelift E60 5 Series.
    In Europea… See more

    Design

    Compared with its N52 predecessor which was port-injected, the N53 uses direct injection. The direct injection system uses piezoelectric fuel injectors which inject into the combustion chamber, using a stratified lean mixtur… See more

    Versions

    The 2.5 L (153 cu in) version of the N53 produces 140 kW (188 bhp) and 235 N⋅m (173 lb⋅ft). It has a bore of 82 mm (3.23 in) and a stroke of 78.8 mm (3.10 in).
    Applications:
    • 2006 … See more