BMW N52 Engine Specifications
The BMW N52 engine is a notable inline-six engine that has garnered attention for its performance and efficiency. Introduced in 2006, the N52 is part of BMW’s M54 engine family and has been used in various models until 2015. Below are the detailed specifications of the N52 engine.
| Specification | Details |
|---|---|
| Engine Type | Inline-6, Naturally Aspirated |
| Displacement | 2.5L (N52B25) / 3.0L (N52B30) |
| Bore x Stroke | 82.0 mm x 78.0 mm |
| Compression Ratio | 10.7:1 |
| Power Output | 143 kW (190 hp) @ 6,000 rpm (N52B25) / 200 kW (255 hp) @ 6,600 rpm (N52B30) |
| Torque | 230 Nm (170 lb-ft) @ 3,500 rpm (N52B25) / 300 Nm (221 lb-ft) @ 2,600 rpm (N52B30) |
| Fuel System | Direct Injection |
| Valvetrain | DOHC, 4 Valves per Cylinder |
| Weight | Approximately 160 kg (352 lbs) |
Engine Configuration
The BMW N52 engine features a sophisticated design that contributes to its performance and efficiency. Below are key aspects of its configuration:
Engine Layout
– Inline-six configuration provides smooth operation and balance.
– The engine is mounted longitudinally in the vehicle, enhancing weight distribution.
Materials and Construction
– Aluminum alloy block and cylinder head reduce weight while maintaining strength.
– The use of magnesium in the engine cover further decreases weight.
Technology Features
– Valvetronic system allows for variable valve lift, optimizing performance and fuel efficiency.
– Double VANOS technology enables variable timing for both intake and exhaust valves, improving engine responsiveness.
Engine Oil Specifications
Proper lubrication is crucial for the longevity and performance of the N52 engine. Below are the recommended oil specifications:
| Specification | Details |
|---|---|
| Oil Type | Full Synthetic |
| Viscosity Grade | SAE 5W-30 |
| Oil Capacity | 6.5 liters (including filter) |
| Oil Change Interval | 15,000 km (9,300 miles) or 12 months, whichever comes first |
Service Intervals
Regular maintenance is essential for the N52 engine to ensure optimal performance and reliability. Below are the recommended service intervals:
Routine Maintenance Schedule
– Oil Change: Every 15,000 km (9,300 miles) or 12 months.
– Air Filter Replacement: Every 30,000 km (18,600 miles).
– Fuel Filter Replacement: Every 60,000 km (37,300 miles).
– Spark Plug Replacement: Every 100,000 km (62,000 miles).
– Coolant Flush: Every 2 years or 40,000 km (24,800 miles).
Inspection and Other Services
– Brake Fluid Replacement: Every 2 years.
– Transmission Fluid Change: Every 60,000 km (37,300 miles).
– Inspection of Belts and Hoses: Every 30,000 km (18,600 miles).
– Tire Rotation and Alignment: Every 10,000 km (6,200 miles).
Conclusion
The BMW N52 engine represents a blend of performance, efficiency, and advanced engineering. With its inline-six configuration, innovative technologies, and specific maintenance requirements, it stands out in the automotive world. Adhering to the recommended oil specifications and service intervals will ensure that the N52 engine continues to deliver a driving experience that is both enjoyable and reliable. Regular maintenance not only prolongs the engine’s life but also enhances the overall performance of the vehicle.
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