2004 BMW 325xi Engine Specifications
The 2004 BMW 325xi is part of the E46 generation and is known for its performance and handling. This model features a robust engine that combines power with efficiency. Below are the detailed specifications of the engine.
| Specification | Details |
|---|---|
| Engine Type | Inline 6-cylinder |
| Displacement | 2.5 liters (152 cubic inches) |
| Horsepower | 184 hp @ 6,000 rpm |
| Torque | 175 lb-ft @ 3,500 rpm |
| Compression Ratio | 10.5:1 |
| Fuel System | Electronic fuel injection |
| Fuel Type | Premium unleaded (91 octane or higher) |
| Valvetrain | DOHC, 24 valves |
| Engine Block Material | Aluminum |
| Engine Head Material | Aluminum |
Engine Configuration
The engine configuration of the 2004 BMW 325xi is designed for optimal performance and efficiency. Here are some key aspects of the engine configuration:
Key Features
- Inline 6-Cylinder Layout: This configuration provides smooth power delivery and balance.
- Double Overhead Camshaft (DOHC): Enhances engine efficiency and performance by allowing for better airflow and higher RPMs.
- 24 Valves: The engine features four valves per cylinder, which improves combustion efficiency and power output.
- Aluminum Construction: Both the engine block and head are made from aluminum, reducing weight and improving thermal efficiency.
Engine Oil Specifications
Proper maintenance of the engine oil is crucial for the longevity and performance of the 2004 BMW 325xi. Below are the specifications for engine oil:
Oil Type
- Recommended Oil: Synthetic oil is recommended for optimal performance.
- Viscosity Rating: 5W-30 is the preferred viscosity for most operating conditions.
Oil Capacity
- Oil Capacity with Filter: Approximately 6.5 quarts (6.2 liters).
- Oil Capacity without Filter: Approximately 6.0 quarts (5.7 liters).
Service Intervals
Regular maintenance is essential for the performance and reliability of the BMW 325xi. Below are the recommended service intervals for oil changes and other maintenance tasks:
Oil Change Intervals
- Conventional Oil: Every 3,000 to 5,000 miles (4,800 to 8,000 km).
- Synthetic Oil: Every 7,500 to 10,000 miles (12,000 to 16,000 km).
Other Maintenance Tasks
- Air Filter Replacement: Every 15,000 to 30,000 miles (24,000 to 48,000 km).
- Fuel Filter Replacement: Every 30,000 miles (48,000 km).
- Spark Plug Replacement: Every 60,000 miles (96,000 km).
- Coolant Flush: Every 30,000 miles (48,000 km).
- Brake Fluid Replacement: Every 2 years, regardless of mileage.
Conclusion
The 2004 BMW 325xi is a well-engineered vehicle that offers a blend of performance, comfort, and reliability. Understanding its engine specifications, configuration, oil requirements, and service intervals is essential for maintaining its performance over time. Regular maintenance not only enhances the driving experience but also contributes to the vehicle’s longevity. Following the recommended guidelines will ensure that the 325xi continues to perform at its best for years to come.
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