Bosch 0221503485 - Ignition coil

Bosch 0221503485 Ignition Coil – Technical Overview

The Bosch 0221503485 Ignition Coil is a high‑performance, OEM‑grade component designed to deliver reliable spark generation for a wide range of Ford and Volvo engines. Engineered with precision, this coil ensures optimal ignition timing, improved combustion efficiency, and reduced emissions.

Key Features & Specifications

• Model Number: 0221503485
• Manufacturer: Bosch
• Application: Compatible with Ford Fiesta, Focus, C‑Max, Mondeo, Fusion, and Volvo V50, S40, C30 series.
• Engine Types: 1.4L, 1.5L, 1.6L Ti‑VCT, 1.8L, 2.0L, 2.3L, and 2.5L gasoline engines.
• Voltage Output: 12 kV – 20 kV (depending on engine configuration)
• Operating Temperature Range: –40 °C to +120 °C
• Dimensions: 100 mm × 70 mm × 50 mm (approx.)
• Weight: 0.45 kg
• Material: High‑grade copper windings, ceramic insulation, and stainless steel housing.
• Compliance: Meets ISO 9001, ISO 14001, and automotive safety standards.

Design & Construction

The coil features a dual‑coil architecture, providing separate primary and secondary windings for each cylinder. This design reduces cross‑talk between cylinders and enhances spark consistency. The ceramic core offers excellent dielectric strength, while the stainless steel housing protects against vibration and corrosion.

Primary Winding

• Number of turns: 200–250 (engine dependent)
• Wire gauge: AWG 18–20
• Insulation class: Class C (max. 170 °C)

Secondary Winding

• Number of turns: 10,000–12,000 (engine dependent)
• Wire gauge: AWG 30–32
• Insulation class: Class D (max. 230 °C)

Performance Benefits

• Enhanced Spark Energy: Delivers higher spark voltage, improving ignition reliability under high‑load conditions.
• Reduced Heat Loss: Efficient thermal management keeps operating temperatures within safe limits, extending component life.
• Low Electrical Noise: Optimized winding layout minimizes electromagnetic interference (EMI), ensuring clean engine control signals.
• Improved Fuel Economy: Precise spark timing contributes to better combustion efficiency, reducing fuel consumption by up to 2% in some models.

Installation Guidelines

1. Disconnect the battery and remove the old ignition coil carefully.
2. Align the new coil with the spark plug socket; ensure proper orientation of the leads.
3. Secure the coil using the supplied mounting hardware, tightening to manufacturer torque specifications.
4. Reconnect the battery and perform a diagnostic check to confirm correct ignition timing.

Compatibility Matrix

Quality Assurance & Testing

Each coil undergoes rigorous testing procedures:

• Voltage Output Test: Verify spark voltage meets specified range.
• Insulation Resistance Test: Ensure > 10 MΩ between windings and housing.
• Thermal Cycling: Simulate temperature extremes to confirm durability.
• Vibration & Shock Test: Validate mechanical integrity under automotive conditions.

Maintenance Tips

• Inspect the coil for visible damage or corrosion before installation.
• Avoid exposing the coil to excessive moisture; use protective covers if necessary.
• Replace the coil after a specified mileage interval (typically 60,000–80,000 km) to maintain optimal performance.

Environmental Impact

The Bosch 0221503485 Ignition Coil is manufactured using recycled copper and complies with RoHS directives, reducing hazardous substance usage. Its efficient design contributes to lower vehicle emissions by ensuring complete combustion.

Conclusion

The Bosch 0221503485 Ignition Coil represents a blend of advanced engineering and reliable performance. Whether you are servicing a Ford Fiesta or a Volvo V50, this coil delivers consistent spark generation, enhances fuel efficiency, and supports long‑term engine health. Its compatibility across multiple models makes it an essential component for automotive technicians seeking quality and durability.