BMW N52
The BMW N52 is a naturally aspirated straight-6 petrol engine which was produced from 2004 to 2015. The N52 replaced the BMW M54 and debuted on the E90 3 Series and E63 6 Series.
| BMW N52 engine | |
|---|---|
| Overview | |
| Production | 2004–2015 |
| Layout | |
| Configuration | Straight-6 |
| Displacement | 2,497 cc (152 cu in) 2,996 cc (183 cu in) |
| Cylinder bore | 82 mm (3.2 in) 85 mm (3.3 in) |
| Piston stroke | 78.8 mm (3.10 in) 88 mm (3.5 in) |
| Cylinder block material | Magnesium-Aluminium |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC, with VVT & VVL |
| Combustion | |
| Fuel type | Petrol |
| Chronology | |
| Predecessor | BMW M54 |
| Successor | BMW N53 |
The N52 was the first water-cooled engine to use magnesium/aluminium composite construction in the engine block. It was also listed as one of Ward's 10 Best Engines in 2006 and 2007.
In European markets, the N52 began to be phased out following the release of the BMW N53 in 2007. However, in markets such as the United States, Canada, Australia and Malaysia, the N53 was deemed unsuitable due to the high levels of sulfur in the fuel. From the year 2011, the N52 began to be replaced by the BMW N20 turbocharged four-cylinder engine until production of the N52 finished in 2015.
Unlike its predecessors, there is no BMW M version of the N52.