Metzger 0900308 Sensor, wheel speed

Metzger 0900308 Sensor – Wheel Speed

The Metzger 0900308 Sensor is a high‑performance wheel speed sensor designed for the ABS and traction control systems of Mercedes-Benz vehicles. It delivers precise rotational data to the vehicle’s electronic control unit, ensuring optimal braking performance and stability under all driving conditions.

Key Features

• Hall Effect Technology: Utilizes a robust Hall effect principle for reliable detection of wheel rotation, even in harsh automotive environments.
• Compact Design: Small footprint allows seamless integration into the existing wheel hub assembly without requiring additional space or modifications.
• High Accuracy: Provides accurate speed measurements across a wide range of vehicle speeds, from low idle to high‑speed cruising.
• Durable Construction: Encased in a rugged housing that resists vibration, temperature extremes, and corrosive elements such as road salt.
• Low Power Consumption: Optimized for minimal electrical draw, contributing to overall vehicle efficiency.

Compatibility

The sensor is engineered specifically for the following Mercedes-Benz models and classes:

• C‑Class (C200, C300, etc.)
• S‑Class (S200, S300, etc.)
• SLK / SLK-Class
• CLK / CLK-Class
• CLC / CLC-Class
• A‑Class and AMG variants where applicable

It is available for both front and rear wheel positions, ensuring full coverage of the vehicle’s braking system.

Installation Overview

1. Remove Existing Sensor: Carefully detach the current wheel speed sensor from the hub assembly using appropriate tools. Note the orientation and mounting method for accurate reinstallation.
2. Prepare the New Sensor: Inspect the Metzger 0900308 for any shipping damage. Verify that the Hall element, coil, and housing are intact.
3. Mounting: Align the sensor with the hub’s mounting points. Secure it using the supplied fasteners or the original hardware to maintain proper torque specifications.
4. Electrical Connection: Connect the sensor’s wiring harness to the vehicle’s ECU connector, ensuring a snug fit and correct polarity.
5. Testing: After installation, perform a diagnostic check using an OBD‑II scanner or manufacturer’s service tool to confirm that wheel speed data is being transmitted accurately.

Performance Benefits

The Metzger 0900308 Sensor enhances vehicle safety by providing:

• Accurate wheel slip detection, allowing the ABS to modulate brake pressure effectively.
• Improved traction control response during acceleration and cornering.
• Reliable data for electronic stability programs (ESP) that help maintain vehicle trajectory.

Maintenance Tips

• Regularly inspect the sensor’s wiring harness for signs of wear or corrosion, especially in regions with heavy road salt usage.
• Keep the sensor housing clean from dirt and debris to prevent signal interference.
• If the vehicle experiences irregular ABS behavior, consider inspecting the sensor as a first diagnostic step.

Technical Specifications

Conclusion

The Metzger 0900308 Sensor is a critical component for maintaining the safety and performance of Mercedes-Benz vehicles equipped with ABS and traction control systems. Its reliable Hall effect design, durable construction, and precise wheel speed measurement make it an essential upgrade or replacement part for drivers seeking optimal braking confidence and vehicle stability.