BMW S54 Engine Specifications
The BMW S54 engine is a high-performance inline-six engine that has become iconic among automotive enthusiasts. Known for its robust power delivery and thrilling driving experience, the S54 has been a favorite in various BMW models, particularly the E46 M3. Below are the detailed specifications of the S54 engine.
| Specification | Details |
|---|---|
| Engine Type | Inline 6-cylinder |
| Displacement | 3.2 liters (3,246 cc) |
| Power Output | 333 hp (245 kW) at 7,900 rpm |
| Torque | 262 lb-ft (355 Nm) at 4,900 rpm |
| Compression Ratio | 11.5:1 |
| Fuel System | Multi-point fuel injection |
| Valvetrain | DOHC, 4 valves per cylinder |
| Max RPM | 8,000 rpm |
| Weight | Approximately 160 kg (352 lbs) |
Engine Configuration
The S54 engine features a sophisticated design that contributes to its performance and reliability. Below are the key aspects of its configuration:
Engine Layout
– Inline 6-cylinder configuration
– Positioned longitudinally in the engine bay
Materials and Construction
– Aluminum alloy block for reduced weight
– Aluminum DOHC cylinder head for improved thermal efficiency
Induction System
– Naturally aspirated
– Dual Vanos variable valve timing for optimized performance across the RPM range
Exhaust System
– High-performance exhaust manifold
– Integrated with a catalytic converter to meet emissions standards
Engine Oil Specifications
Proper lubrication is crucial for the longevity and performance of the S54 engine. Below are the recommended oil specifications and service intervals.
Oil Type
– Recommended oil: Synthetic motor oil
– Viscosity: 10W-60 (for high-performance applications) or 5W-30 (for regular use)
Oil Capacity
– Total oil capacity: Approximately 6.5 liters (including filter)
Oil Change Intervals
– Recommended oil change interval: Every 7,500 miles (12,000 km) or annually, whichever comes first
– For track use or high-performance driving, consider changing oil every 3,000 miles (4,800 km)
Service Intervals
Regular maintenance is essential for the S54 engine to ensure optimal performance and reliability. Below are the recommended service intervals:
Regular Maintenance Schedule
- Oil Change: Every 7,500 miles (12,000 km)
- Air Filter Replacement: Every 15,000 miles (24,000 km)
- Fuel Filter Replacement: Every 30,000 miles (48,000 km)
- Spark Plug Replacement: Every 60,000 miles (96,000 km)
- Coolant Change: Every 2 years or 30,000 miles (48,000 km)
Inspection and Additional Services
– Inspect and replace the serpentine belt every 60,000 miles (96,000 km)
– Check valve clearance every 100,000 miles (160,000 km)
– Inspect the exhaust system for leaks and damage regularly
Conclusion
The BMW S54 engine is a remarkable piece of engineering that combines performance, reliability, and a thrilling driving experience. Understanding its specifications, configuration, and maintenance requirements is essential for enthusiasts and owners alike. By adhering to the recommended service intervals and using the appropriate engine oil, drivers can ensure that their S54 engine continues to perform at its best for years to come.
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