make: BMW

The BMW N52 was an inline six-cylinder petrol engine that was available in 2.5- and 3.0-litre capacities. Available from 2004, the N52 engine replaced the M54 engine and introduced a number of mass reduction measures – at 161 kg, it was 10 kg lighter than the M54. Although the N52 was superseded by the N53 […]

The BMW N54 was a 3.0-litre inline six-cylinder petrol engine which had two parallel turbochargers. With its 84.0 mm bore and 89.6 mm stroke, the N54 engine had a capacity of 2979 cc. From 2007 to 2012, the N54 engine won six consecutive ‘International Engine of the Year’ awards. Block The cylinder block for the […]

Available from 2009, the BMW N55 was a 3.0-litre inline six-cylinder petrol engine which had a single twin-scroll turbocharger. With its 84.0 mm bore and 89.6 mm stroke, the N55 engine had a capacity of 2979 cc. The N55 engine replaced BMW’s N54 engine which had two parallel turbochargers. N55 Block Like the N54, the […]

The BMW N46 was an inline four-cylinder petrol engine that was available from 2004 to 2012. The N46 replaced BMW’s N42 engine, though changes were relatively minor. The N46 engine had an aluminium alloy block and cylinder head, two gear-driven balance shafts, double overhead camshafts (chain-driven), variable intake and exhaust valve timing (BMW’s double VANOS), […]

The BMW N47 was an inline, four-cylinder turbo-diesel engine that replaced the M47 engine. From 2014, the N47 was progressively replaced by the B47 engine. Crankcase The N47 had a closed-deck, deep skirt aluminium alloy block with cast iron cylinder liners. Furthermore, the N47 had a reinforcing shell which connected the centre bearings to the […]

The BMW N42 was an inline four-cylinder petrol engine that was available from 2001 to 2004. The N42 replaced BMW’s M43 engine and won the International Engine of the Year Award in 2001. The N42 engine had an aluminium alloy block and cylinder head, two gear-driven balance shafts, double overhead camshafts (chain-driven), variable intake and […]

The BMW N45 was an inline four-cylinder petrol engine that was first released in 2003. The N45 was a revised version of the N40 engine. The N45 engine had an aluminium alloy block and cylinder head, two gear-driven balance shafts, sequential fuel injection, double overhead camshafts (chain-driven), variable intake and exhaust valve timing (BMW’s double […]

The N13 was BMW’s turbocharged version of the 1.6-litre ‘Prince’ four-cylinder petrol engine which it developed in conjunction with PSA Peugeot Citroen. With its 77.0 mm bore and 84.8 mm stroke, the N13B16 engine had a capacity of 1598 cc. The N13 had a two-piece crankcase and bedplate that were made from die-cast aluminium. Beyond […]

The BMW N20 was an inline, four-cylinder turbocharged petrol engine that was available from January 2011. Effectively replacing the N52 and N53 six-cylinder engines, the design of the N20 engine was based on the six-cylinder N55 engine. With its 84.0 mm bores and 90.1 mm stroke, the N20 engine had a capacity of 1997 cc. […]