Bosch 0265008017 Wheel-Speed Sensor

Bosch 0265008017 Wheel‑Speed Sensor is a precision component engineered to deliver reliable performance in automotive braking and stability systems. Designed for rear axle applications, it plays a pivotal role in the Anti‑Lock Braking System (ABS), Electronic Stability Program (ESP), and traction control modules by accurately measuring wheel rotation speed.

Key Functional Characteristics

The sensor operates on the Hall effect principle, converting magnetic field variations into electrical signals that represent wheel velocity. Its compact, rugged construction ensures consistent operation under harsh automotive conditions such as temperature extremes, vibration, and exposure to road salts or moisture.

• High Accuracy: Provides precise rotational data for ABS algorithms, enabling timely brake pressure modulation.
• Low Power Consumption: Designed to draw minimal current from the vehicle’s electrical system, preserving battery life.
• Durable Housing: Made from high‑strength polymers and metal alloys that resist impact and corrosion.
• Standardized Connector: Features a 4‑pin plug compatible with OEM wiring harnesses, simplifying installation.

Technical Specifications

The sensor’s performance parameters are tailored to meet the demands of modern vehicles. While exact values may vary slightly between production batches, typical specifications include:

Compatibility and Application Scope

The Bosch 0265008017 is engineered to fit a wide range of rear‑wheel vehicles, particularly those from the Citroën and Peugeot families. Its design aligns with the DF11 sensor architecture, ensuring seamless integration into existing ABS and ESP modules.

• Citroën Models: C4 (2004–2011), C4 VTR, C4 HDi, and various estate or coupe variants.
• Peugeot Models: 307 (including SW, CC, Break, Van), 307 1.6 HDI, 307 2.0 HDI, and related hatchback or sedan configurations.
• Other European vehicles that adopt the same rear‑wheel sensor layout may also be compatible after minor adaptation.

Installation Overview

Replacing a wheel‑speed sensor is a straightforward procedure for technicians familiar with automotive electrical systems. The typical steps are:

1. Disconnect the battery to prevent accidental short circuits.
2. Remove the rear wheel and hub assembly, exposing the old sensor.
3. Detach the wiring harness from the existing sensor, noting connector orientation.
4. Unscrew the old sensor using a suitable socket or wrench.
5. Install the Bosch 0265008017, aligning pins with the hub mounting holes and securing it firmly.
6. Reconnect the harness and verify proper seating of the connector.
7. Reinstall the wheel, brake components, and battery.
8. Run a diagnostic scan to confirm sensor functionality and clear any fault codes.

Reliability and Longevity

Manufactured under Bosch’s stringent quality controls, the 0265008017 sensor boasts an expected lifespan that matches or exceeds that of the vehicle’s braking system. Its robust design mitigates common failure modes such as:

• Electrical Noise: Shielded wiring and precise signal conditioning reduce susceptibility to interference.
• Mechanical Wear: Hardened contact surfaces resist abrasion from wheel hub movement.
• Environmental Degradation: Sealed housing protects against water ingress, salt, and road grime.

Diagnostic Features

The sensor’s output is monitored by the vehicle’s ECU. When a fault occurs—such as signal loss or abnormal frequency—the system logs an error code (e.g., P0xxx). A qualified technician can use an OBD‑II scanner to read these codes, isolate the sensor issue, and verify correct operation after replacement.

Conclusion

The Bosch 0265008017 Wheel‑Speed Sensor exemplifies engineering excellence in automotive safety components. Its precise Hall effect sensing, durable construction, and broad compatibility make it an essential part of the braking and stability systems in many rear‑wheel vehicles. Whether maintaining a fleet or performing a single replacement, this sensor delivers dependable performance that drivers can trust on every journey.