Metzger 0900040 Sensor, wheel speed

Metzger 0900040 is a precision-engineered wheel‑speed sensor designed exclusively for the rear left wheel of Mercedes-Benz models such as the C‑Class (W203), CL C, and CLK. This ABS sensor employs a Hall‑effect principle to accurately detect rotational speed, ensuring optimal braking performance and vehicle stability.

Key Features

• Hall‑Effect Technology: Generates a magnetic field that changes with wheel rotation, producing a reliable electrical signal for the ABS control unit.
• High Accuracy: Delivers precise wheel‑speed data even under extreme temperature variations and vibration conditions typical of rear-wheel drive setups.
• Compact Design: Fits seamlessly into the existing sensor housing, requiring no modifications to the vehicle’s suspension or brake components.
• Robust Construction: Built with corrosion-resistant materials to withstand road salts, moisture, and debris.
• Easy Installation: Designed for straightforward replacement of the original sensor; all necessary mounting hardware is included.

Compatibility Overview

The Metzger 0900040 is engineered to match the specifications of Mercedes-Benz rear‑wheel ABS systems. It is fully compatible with:

• C‑Class (W203) – rear left wheel sensor slot
• CL C – rear left wheel sensor slot
• CLK – rear left wheel sensor slot
• A209, C209 variants of the W203 platform

Installation Guide

1. Safety First: Raise the vehicle and secure it on jack stands. Disconnect the battery to prevent accidental electrical discharge.
2. Remove Old Sensor: Detach the brake caliper, remove the wheel, and unscrew the existing sensor from its housing.
3. Install New Sensor: Align the Metzger 0900040 with the mounting points. Tighten the retaining screws to the manufacturer’s torque specification.
4. Reconnect Electronics: Attach the sensor connector, ensuring a snug fit. Reinstall the caliper and wheel.
5. Test Functionality: Start the vehicle and verify that the ABS warning light behaves normally during braking tests.

Performance Benefits

By providing accurate wheel‑speed data, the Metzger 0900040 enhances:

• Brake Stability: Maintains optimal ABS engagement, reducing wheel lock‑up during emergency stops.
• Traction Control: Works in tandem with the vehicle’s electronic stability program to prevent loss of control on slippery surfaces.
• Longevity: Durable construction reduces the need for frequent replacements, saving maintenance time and cost.

Technical Specifications

Why Choose Metzger?

Metzger has a long-standing reputation for producing high‑quality automotive sensors that meet or exceed OEM standards. The 0900040 sensor reflects this commitment through:

• Reliability: Proven performance in demanding driving conditions.
• Precision Engineering: Tight tolerances ensure consistent signal output.
• Customer Support: Technical assistance available for installation and troubleshooting.

Conclusion

The Metzger 0900040 wheel‑speed sensor is a specialized component that delivers dependable ABS functionality for Mercedes-Benz rear‑wheel vehicles. Its Hall‑effect design, robust construction, and straightforward installation make it an ideal choice for technicians seeking to maintain or restore optimal braking performance.