BMW E30 325is Engine Specifications
The BMW E30 325is is a classic model that has garnered a dedicated following among car enthusiasts. Known for its balance of performance and practicality, the E30 325is features a robust engine that contributes significantly to its appeal. Below are the detailed engine specifications for the E30 325is.
| Specification | Details |
|---|---|
| Engine Type | Inline 6-cylinder |
| Displacement | 2.5 liters (M20B25) |
| Power Output | 168 hp (125 kW) at 6,000 RPM |
| Torque | 164 lb-ft (222 Nm) at 4,000 RPM |
| Compression Ratio | 9.2:1 |
| Fuel System | Electronic fuel injection |
| Valvetrain | SOHC, 12 valves |
| Transmission Options | 5-speed manual, 4-speed automatic |
| 0-60 mph | 6.9 seconds |
| Top Speed | 137 mph (220 km/h) |
Engine Configuration
The engine configuration of the BMW E30 325is is a key factor in its performance and driving dynamics. The inline 6-cylinder engine, known as the M20B25, is celebrated for its smoothness and power delivery.
Key Features of the Engine Configuration
- Inline 6-cylinder Design: Provides a balanced weight distribution and low center of gravity.
- Electronic Fuel Injection: Enhances fuel efficiency and performance.
- Single Overhead Camshaft (SOHC): Simplifies the valvetrain while maintaining performance.
- 12 Valves: Improves airflow and engine efficiency.
The M20B25 engine is known for its reliability and ease of maintenance, making it a popular choice among enthusiasts who appreciate both performance and longevity.
Engine Oil Specifications
Proper engine oil is crucial for the longevity and performance of the BMW E30 325is. Using the right oil ensures that the engine runs smoothly and efficiently.
Recommended Engine Oil
- Type: Synthetic or conventional oil
- Viscosity: 10W-40 or 20W-50
- API Rating: API SG or higher
Oil Capacity
- With Filter: Approximately 6.5 quarts (6.2 liters)
- Without Filter: Approximately 5.5 quarts (5.2 liters)
Service Intervals
Regular maintenance is essential for keeping the BMW E30 325is running at its best. Below are the recommended service intervals for oil changes and other key maintenance tasks.
Oil Change Intervals
- Every 5,000 miles (8,000 km): For regular driving conditions.
- Every 3,000 miles (5,000 km): For severe driving conditions (e.g., stop-and-go traffic, extreme temperatures).
Additional Maintenance Tasks
- Air Filter Replacement: Every 15,000 miles (24,000 km).
- Fuel Filter Replacement: Every 30,000 miles (48,000 km).
- Spark Plug Replacement: Every 30,000 miles (48,000 km).
- Coolant Flush: Every 2 years or 30,000 miles (48,000 km).
Maintaining the BMW E30 325is according to these intervals will help ensure that the vehicle remains reliable and enjoyable to drive for years to come.
Conclusion
The BMW E30 325is is a remarkable vehicle that combines performance with practicality. Understanding its engine specifications, configuration, oil requirements, and service intervals is essential for any owner or enthusiast. By adhering to the recommended maintenance practices, drivers can enjoy the unique driving experience that the E30 325is offers, while also ensuring the longevity of this classic BMW model.
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