BOSCH 0221504029
BMW Ignition Coil + Spark Plug Connector Bosch OEM 0221504029
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Product Overview
The BOSCH 0221504029 is a high‑performance ignition coil designed for a wide range of BMW and ALPINA models. This component plays a critical role in the engine’s ignition system, converting battery voltage into the high‑voltage spark required to ignite the air/fuel mixture in each cylinder.
Key Features
- OEM Quality: Manufactured by Bosch, the coil meets original equipment specifications and delivers reliable performance under demanding operating conditions.
- Wide Compatibility: Suitable for numerous BMW series including E36, E46, E39, E38, E31, E53, Z3, Z8, X5, and ALPINA Roadster models. It also fits many modern 3‑, 5‑, 7‑, and 8‑series vehicles.
- High Voltage Output: Generates the necessary spark voltage to ensure efficient combustion, contributing to improved engine response and fuel economy.
- Durable Construction: Built with robust materials that resist heat, vibration, and electrical noise, extending the life of the ignition system.
- Easy Installation: Designed for straightforward replacement; compatible with standard spark plug sockets and mounting brackets used in BMW/ALPINA engines.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0221504029 (also listed as 0 221 504 029) |
| Voltage Rating | 14 V (typical for BMW ignition systems) |
| Compatible Models | E36, E46, E39, E38, E31, E53, Z3, Z8, X5, 3‑Series, 5‑Series, 7‑Series, 8‑Series, ALPINA Roadster |
| Mounting Type | Single square coil with integrated spark plug socket |
| Material | High‑grade copper windings, ceramic insulation, steel housing |
| Dimensions (approx.) | Length: 120 mm; Diameter: 70 mm |
| Weight | 0.8 kg |
Installation Guide
- Disconnect the battery to prevent accidental sparks.
- Locate the existing ignition coil on the engine block; it is typically mounted near the spark plug.
- Remove the old coil by unscrewing the mounting bolts and gently lifting it away from the spark plug.
- Insert the new BOSCH 0221504029, aligning the mounting holes with the engine block.
- Tighten the bolts securely, ensuring no play in the coil assembly.
- Reconnect the battery and start the engine to verify proper operation.
Performance Benefits
Replacing a worn ignition coil with the BOSCH 0221504029 can lead to:
- Improved Throttle Response: A stronger spark results in quicker combustion, enhancing acceleration.
- Better Fuel Efficiency: Consistent ignition reduces fuel wastage caused by misfires.
- Reduced Emissions: Efficient combustion lowers exhaust pollutants.
- Lower Maintenance Costs: OEM quality components reduce the likelihood of recurrent failures.
Compatibility Summary
The coil’s versatility makes it a go‑to replacement for many BMW and ALPINA engines. Whether you own an older E36 or a newer X5, the BOSCH 0221504029 delivers reliable spark performance across the board.
Conclusion
For owners seeking to maintain or restore their BMW/ALPINA vehicles to factory‑level reliability, the BOSCH 0221504029 ignition coil offers a proven solution. Its OEM heritage, broad compatibility, and robust construction ensure that your engine receives the precise spark it needs for optimal performance.
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Identifiers
Bosch is a brand of power tools and appliances. The company was founded in 1886 and produces a wide range of power tools, appliances, and accessories. Bosch tools are known for their quality and durability, and the company is a leader in innovation and design.
