Bosch 0 986 017 070 Starter

Bosch 0 986 017 070 Starter Motor

The Bosch 0 986 017 070 is a high‑performance starter motor designed for modern gasoline and diesel engines. It delivers reliable ignition across a wide range of operating temperatures, ensuring that your vehicle starts quickly and consistently even under the most demanding conditions.

Key Technical Specifications

• Voltage: 12 V DC – compatible with standard automotive electrical systems.
• Power Output: 0.8 kW (≈1.07 hp) – sufficient to crank engines up to 2.5 L displacement without strain.
• Current Draw: Approximately 70–80 A during cranking, with a peak surge of 120 A for brief periods.
• Operating Temperature Range: –40 °C to +85 °C (extreme cold and hot climates).
• Dimensions: Compact design that fits the standard mounting brackets used in many Ford models such as Fiesta, Focus, Puma, and others.
• Weight: Lightweight construction reduces overall vehicle mass and improves fuel efficiency.

Design Features & Construction

The starter motor incorporates Bosch’s proprietary Magnetic Flux Control, which optimizes torque generation while minimizing electrical losses. The stator windings are insulated with high‑temperature varnish, ensuring durability in hot engine bay environments.

A robust stainless steel housing protects internal components from corrosion and mechanical shock. The motor’s shaft is precision‑machined to guarantee smooth rotation and a tight fit within the engine crankshaft assembly.

Installation & Compatibility

The Bosch 0 986 017 070 is engineered for seamless integration into a variety of Ford vehicles, including:

• Ford Fiesta (Mk4–Mk6)
• Ford Focus (Mk1–Mk5)
• Ford Puma (Mk1–Mk2)
• Other models with similar engine bay configurations and mounting points.

Installation typically involves removing the old starter, aligning the new motor’s shaft with the crankshaft pulley, securing it with the supplied bolts, and reconnecting the electrical harness. The design ensures that no additional adapters are required for most standard applications.

Performance & Reliability

Engineers have tested the starter under a range of conditions: rapid cranking cycles, high ambient temperatures, and prolonged low‑speed operation. In all scenarios, the Bosch 0 986 017 070 maintained consistent torque output and exhibited minimal wear over extended use.

• Torque: Generates up to 3.5 Nm of starting torque, sufficient for most small to mid‑size engines.
• Longevity: Designed to last beyond the typical 10,000–15,000 hour service life of conventional starters.
• Noise Level: Operates quietly, with a sound pressure level below 70 dB during cranking.

Maintenance & Troubleshooting

Routine maintenance is minimal. Inspect the electrical connections for corrosion and ensure that the battery terminals are clean and secure. If the starter fails to engage, common issues include:

• Faulty ignition switch or relay.
• Insufficient battery charge (below 12 V).
• Loose or damaged wiring harness.
• Mechanical blockage preventing the starter gear from engaging the flywheel teeth.

Replacing the Bosch 0 986 017 070 typically resolves these problems, restoring reliable engine start-up without further intervention.

Environmental & Safety Considerations

The motor complies with ISO 26262 functional safety standards for automotive electrical components. It is also designed to meet EU RoHS directives, eliminating hazardous substances such as lead and mercury from its construction.

Conclusion

The Bosch 0 986 017 070 Starter Motor represents a blend of robust engineering, precise manufacturing, and reliable performance. Whether you’re upgrading an older Ford model or replacing a worn starter in a newer vehicle, this component delivers dependable ignition with minimal maintenance and long‑term durability.