2004 BMW 325i Engine Specifications
The 2004 BMW 325i is part of the E46 generation and is known for its blend of performance, luxury, and reliability. The engine specifications of the 325i are crucial for understanding its capabilities and maintenance requirements. Below is a detailed overview of the engine specifications.
| Specification | Details |
|---|---|
| Engine Type | Inline 6-cylinder |
| Displacement | 2.5 liters (152 cubic inches) |
| Power Output | 184 hp at 6,000 RPM |
| Torque | 175 lb-ft at 3,500 RPM |
| Compression Ratio | 10.5:1 |
| Fuel System | Electronic fuel injection |
| Fuel Type | Premium unleaded (91 octane or higher) |
| Transmission Options | 5-speed manual or 5-speed automatic |
| 0-60 mph | 6.5 seconds (approx.) |
| Top Speed | 130 mph (electronically limited) |
Engine Configuration
The engine configuration of the 2004 BMW 325i is designed to provide a balance between performance and efficiency. Below are the key aspects of its configuration:
Engine Layout
– Inline 6-cylinder design
– Smooth power delivery and refined operation
– Low center of gravity enhances handling
Performance Features
– DOHC (Dual Overhead Camshaft) design
– VVT (Variable Valve Timing) for improved efficiency and performance
– Lightweight aluminum construction for reduced weight
Cooling System
– Liquid-cooled engine
– Efficient radiator design for optimal temperature management
Engine Oil Specifications
Proper engine oil is vital for the longevity and performance of the 2004 BMW 325i. The following specifications should be adhered to for optimal engine health.
Recommended Engine Oil
– Oil Type: Synthetic or conventional oil
– Viscosity Rating: 5W-30 or 10W-40
– API Rating: API SM or higher
Oil Capacity
– With Filter: Approximately 6.9 quarts (6.5 liters)
– Without Filter: Approximately 6.5 quarts (6.2 liters)
Oil Change Intervals
– Standard Driving Conditions: Every 7,500 miles or 12 months, whichever comes first
– Severe Driving Conditions: Every 5,000 miles or 6 months (includes frequent short trips, heavy traffic, and extreme temperatures)
Service Intervals
Regular maintenance is essential for keeping the 2004 BMW 325i running smoothly. Below are the recommended service intervals for various components.
General Maintenance Schedule
- Oil Change: Every 7,500 miles or 12 months
- Air Filter Replacement: Every 15,000 miles
- Fuel Filter Replacement: Every 30,000 miles
- Spark Plug Replacement: Every 60,000 miles
- Brake Fluid Replacement: Every 2 years
Inspection and Replacement
– Tire Rotation: Every 5,000 to 7,500 miles
– Brake Inspection: Every 10,000 miles
– Coolant Flush: Every 2 years or 30,000 miles
– Transmission Fluid Change: Every 30,000 to 60,000 miles
Conclusion
The 2004 BMW 325i is a well-rounded vehicle that offers a robust engine configuration and requires specific maintenance to ensure its performance and longevity. By adhering to the recommended engine oil specifications and service intervals, owners can enjoy the driving experience that BMW is renowned for. Regular maintenance not only enhances performance but also helps in avoiding costly repairs in the long run.
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