Bosch 0261210178 Rot.-Speed Sensor

Bosch 0261210178 Rot.-Speed Sensor

The Bosch 0261210178 Rot.-Speed Sensor is a high‑performance crankshaft position sensor designed for modern internal combustion engines. It delivers precise engine timing information, enabling the engine control unit (ECU) to manage ignition, fuel injection, and variable valve timing with optimal accuracy.

Key Features

• High Accuracy: Provides exact crankshaft position data for engines ranging from 1.8 L to 4.0 L displacement.
• Robust Construction: Built with a durable ceramic housing and sealed contacts, ensuring long life in harsh engine bay environments.
• Wide Operating Temperature: Functions reliably from –40 °C to +125 °C, suitable for both passenger cars and light commercial vehicles.
• Fast Response Time: Enables rapid ECU adjustments during transient conditions such as acceleration or deceleration.
• Compact Design: Small footprint allows installation in tight engine bay spaces without compromising airflow.

Technical Specifications

Compatibility and Applications

The sensor is engineered to fit a wide range of vehicles, including:

• Audi models: A4 (B6/B7), A6 (C5), TT (8N3/8N9)
• Volkswagen models: Passat (2.8 L, 3.0 L), Beetle, Bora
• Seat and Skoda: Leon, Octavia, Superb, Karmann variants
• Engine types: Inline‑4, V6, and inline‑6 configurations
• Transmission options: Manual, automatic, and dual‑clutch systems

Its universal design allows seamless integration into OEM and aftermarket ECU setups, ensuring reliable engine performance across diverse automotive platforms.

Installation Guide

1. Preparation: Disconnect the battery to prevent electrical hazards. Remove any protective covers around the crankshaft area.
2. Remove Old Sensor: Unscrew the existing sensor using a suitable socket or wrench. Carefully detach the wiring harness, noting the connector orientation.
3. Install New Sensor: Align the new Bosch 0261210178 sensor with the mounting holes and secure it with bolts. Apply gasket material if required to ensure a proper seal.
4. Reconnect Wiring: Plug the harness into the sensor’s connector, ensuring a snug fit. Verify that all pins are correctly aligned.
5. Test Functionality: Reconnect the battery and start the engine. Use an OBD‑II scanner to confirm that the crankshaft speed signal is within expected parameters.

Maintenance Tips

• Inspect the sensor periodically for signs of wear or corrosion, especially in high‑humidity environments.
• Avoid exposing the sensor to oil leaks or coolant spills; clean gently with isopropyl alcohol if necessary.
• Replace the sensor promptly if engine misfires, rough idle, or irregular acceleration patterns occur.

Why Choose Bosch?

Bosch has a long-standing reputation for engineering excellence in automotive electronics. The 0261210178 Rot.-Speed Sensor embodies this legacy through:

• Precision manufacturing that meets stringent OEM tolerances.
• Extensive testing under real‑world driving conditions.
• Compatibility with a broad spectrum of vehicle models, reducing the need for custom solutions.

Conclusion

The Bosch 0261210178 Rot.-Speed Sensor is an essential component for any engine requiring accurate crankshaft position data. Its robust construction, wide temperature tolerance, and proven compatibility make it a reliable choice for both professional technicians and automotive enthusiasts seeking optimal engine performance.