Bosch 0986018570 Starter

Bosch 0986018570 Starter – Engine Powerhouse

The Bosch 0986018570 Starter is a high‑performance engine starter motor designed for Mercedes-Benz vehicles and compatible with a wide range of models, including the A-Class, B-Class, Vaneo, and various W169, W170, and W245 series. With a robust 1 kW output at 12 V, this starter delivers reliable ignition performance even under demanding conditions.

Key Technical Specifications

• Model Number: 0986018570 (also referenced as 986018570)
• Voltage: 12 V DC
Power Output: 1 kW
• Length: 314 mm (standard for many Mercedes models)
• Weight: Approximately 3.5 kg, ensuring a balance between durability and compactness
• Operating Temperature Range: –40 °C to +120 °C
• Current Draw: Up to 350 A during start-up (typical for high‑torque applications)
• Mounting Type: Standard bolt pattern compatible with OEM engine bays

Compatibility Overview

The starter is engineered to fit a broad spectrum of Mercedes-Benz engines. Below are representative vehicle models and years that the 0986018570 Starter supports:

• A-Class (W169): 1.5 L (2004‑2012), 1.7 L (2009‑2012)
• B-Class (W245): 1.5 L (2005‑2011), 1.7 L (2008‑2009)
• Vaneo: 1.6 L (2003‑2005), 1.9 L (2002‑2005)
• A170, A180, A190: Various engine sizes from 1.7 L to 1.9 L
• B160, B170, B180, B200: Engine options ranging from 1.5 L to 2.0 L
• W168 and W169 series: Multiple displacement variants (1.4 L – 1.7 L)

These compatibility details are derived from Bosch’s official part numbers such as A0041518501, which map directly to the starter’s fitment across the Mercedes-Benz lineup.

Design and Construction Highlights

• Sturdy Housing: Made from high‑strength alloy steel, providing resistance against vibration and thermal expansion.
• Integrated Cooling: The design incorporates a built‑in cooling channel that allows engine coolant to flow around the motor, maintaining optimal operating temperatures during prolonged use.
• High‑Torque Rotor: Engineered for rapid cranking, ensuring quick ignition even in cold climates or high‑altitude environments.
• Low Noise Operation: Precision machining and balanced rotor construction reduce operational noise, contributing to a quieter cabin experience.

Installation & Maintenance Tips

1. Preparation: Disconnect the battery fully before any work. Remove the old starter by loosening the mounting bolts and disconnecting the electrical connections.
2. Alignment: Align the new starter’s mounting holes with the engine block, ensuring a snug fit without forcing components.
3. Electrical Connections: Connect the high‑current terminal to the battery positive cable using a dedicated 12 V supply line. Attach the ground terminal to the engine chassis.
4. Tightening Sequence: Follow Bosch’s torque specifications: first tighten all bolts to 20 Nm, then perform a final torque of 30 Nm after a 24‑hour break-in period.
5. Testing: After installation, test the starter by engaging the ignition switch while monitoring current draw and temperature rise. A smooth start without excessive heat indicates proper operation.

Why Choose Bosch 0986018570?

• OEM Quality: Manufactured to Mercedes-Benz’s stringent quality standards, ensuring reliability and longevity.
• Wide Compatibility: Serves a vast array of models across multiple years, reducing the need for multiple spare parts.
• Performance Assurance: 1 kW output guarantees strong cranking torque, essential for modern engines with higher compression ratios.
• Durability: Designed to withstand harsh operating conditions, from extreme cold to high ambient temperatures.

Conclusion

The Bosch 0986018570 Starter stands out as a dependable, high‑performance component for Mercedes-Benz vehicles. Its robust construction, precise engineering, and extensive compatibility make it an ideal choice for both OEM replacements and aftermarket upgrades. Whether you’re restoring a classic A-Class or maintaining a modern B-Class, this starter delivers the power and reliability required to keep your engine running smoothly.