Metzger 0900007 Sensor, wheel speed

Overview of the Metzger 0900007 Wheel Speed Sensor

The Metzger 0900007 is a high‑performance wheel speed sensor designed for rear axle applications in BMW models such as the E39 520–540i and other Series 5 vehicles. This sensor employs an advanced Hall‑effect technology to deliver precise, reliable wheel rotation data essential for modern anti‑lock braking systems (ABS), traction control, and electronic stability programs.

Key Functionalities

• Accurate Wheel Speed Measurement: Generates a square wave signal proportional to the wheel’s rotational speed, enabling the vehicle’s ECU to calculate braking force accurately.
• Robust Hall‑Effect Design: Utilizes a magnetic field sensor that is immune to oil, coolant, and high temperatures, ensuring long‑term durability in harsh automotive environments.
• Compact & Low Profile: The sensor’s slim form factor fits seamlessly into the rear wheel hub assembly without requiring extensive modifications.
• High Signal Integrity: Features a low‑noise output that minimizes false readings, which is critical for safety‑critical systems like ABS and ESP.

Compatibility & OEM Status

The Metzger 0900007 is an original equipment manufacturer (OEM) part specifically engineered for BMW’s rear axle architecture. It matches the exact electrical specifications, mounting geometry, and mechanical tolerances of the factory sensor, guaranteeing a perfect fit in vehicles such as:

• BMW E39 520–540i Series 5
• Other Series 5 models with similar rear‑axle configurations
• Vehicles requiring precise wheel speed feedback for ABS and traction control systems

Installation Highlights

Installing the Metzger 0900007 is straightforward thanks to its OEM design:

1. Remove the Old Sensor: Detach the existing wheel speed sensor by loosening the mounting bolts and disconnecting the electrical connector.
2. Align the New Sensor: Position the new sensor so that its magnetic core aligns with the wheel’s toothed rim or gear teeth.
3. Screw in Place: Secure the sensor using the original mounting hardware, ensuring a tight fit to prevent vibration.
4. Reconnect Electronics: Attach the wiring harness connector, double‑check polarity, and verify signal integrity with an oscilloscope if available.

Performance Benefits

• Enhanced Braking Precision: Accurate wheel speed data allows the ABS module to modulate brake pressure optimally, reducing stopping distances on slippery surfaces.
• Improved Vehicle Stability: Reliable sensor input feeds into traction control and electronic stability programs, helping maintain vehicle control during sudden maneuvers.
• Extended Sensor Life: The Hall‑effect core resists wear from debris and temperature fluctuations, reducing maintenance intervals compared to older potentiometer‑based sensors.

Technical Specifications (Typical)

Why Choose the Metzger 0900007?

The Metzger 0900007 delivers uncompromised reliability for safety‑critical systems. Its OEM heritage ensures that every vehicle component works in harmony, preserving the integrity of the ABS and traction control networks. Whether you’re restoring a classic BMW or maintaining a modern Series 5, this sensor provides the precision and durability required by today’s automotive standards.

Conclusion

In summary, the Metzger 0900007 Wheel Speed Sensor is an essential component for rear‑axle wheel speed measurement in BMW vehicles. Its Hall‑effect design, OEM compatibility, and robust construction make it a dependable choice for both professional technicians and dedicated enthusiasts seeking to maintain or upgrade their vehicle’s braking and stability systems.