Metzger 0900035 Sensor, wheel speed

Metzger 0900035 Wheel Speed Sensor

The Metzger 0900035 is a high‑performance wheel speed sensor designed for the rear left wheel of Mercedes-Benz S‑Class (W220) and other compatible models. It plays a critical role in the vehicle’s Anti‑Lock Braking System (ABS), providing precise wheel rotation data that enables safe braking under various driving conditions.

Key Functionalities

Accurate Wheel Speed Measurement: The sensor continuously monitors the rotational speed of the wheel, converting mechanical motion into an electrical signal. This real‑time data is essential for ABS to detect wheel lock‑up and adjust brake pressure accordingly.

High Reliability in Harsh Environments: Built with robust materials, the 0900035 withstands extreme temperatures, vibration, and exposure to road salts and debris. Its sealed design protects internal components from moisture and contaminants.

Low Power Consumption: The sensor operates efficiently, drawing minimal current from the vehicle’s electrical system while maintaining high signal integrity.

Technical Specifications

• Model Number: 0900035
• Application: Rear left wheel of Mercedes-Benz S‑Class (W220) and similar models
• Signal Type: Hall effect / magnetic sensor output
• Operating Temperature Range: -40 °C to +85 °C
• Mounting Method: Standard bolt‑in with integrated mounting flange
• Connector Type: 4‑pin automotive connector (compatible with ABS control unit)
• Signal Frequency: Up to 10 kHz for high‑speed wheel detection
• Dimensions: Compact footprint suitable for tight rear axle spaces

Installation and Compatibility

The Metzger 0900035 is engineered to fit seamlessly into the existing ABS architecture of Mercedes-Benz vehicles. During installation, technicians typically replace the original sensor with this unit, ensuring that all electrical connections match the factory specifications.

Compatibility Notes:

• Designed for rear left wheel applications; equivalent models exist for other positions (e.g., right wheel, front wheels).
• Compatible with ABS control modules that accept standard Hall effect sensor inputs.
• May be used in aftermarket or custom builds where the original sensor is unavailable.

Performance Benefits

Enhanced Braking Safety: By delivering precise wheel speed data, the sensor allows the ABS system to modulate brake pressure accurately, preventing wheel lock‑up and maintaining steering control during emergency stops.

Improved System Longevity: The durable construction reduces the likelihood of sensor failure, which can lead to costly repairs or compromised braking performance.

Consistent Performance Across Conditions: Whether driving on wet roads, icy surfaces, or in high‑temperature climates, the 0900035 maintains reliable operation, ensuring that ABS functions as intended under all circumstances.

Maintenance and Troubleshooting

Routine checks of the sensor’s electrical connections are recommended during regular vehicle inspections. Common issues include:

• Signal Loss: Often caused by damaged wiring or connector corrosion; inspect for continuity and clean contacts.
• Erratic ABS Readings: May indicate a faulty sensor; replacement with a new 0900035 typically resolves the problem.
• Physical Damage: Inspect the sensor housing for cracks or dents that could compromise its seal and performance.

Conclusion

The Metzger 0900035 Wheel Speed Sensor is a reliable, high‑quality component essential for maintaining the safety and effectiveness of Mercedes-Benz’s ABS system. Its precise measurement capabilities, robust construction, and ease of integration make it an excellent choice for both original equipment replacement and aftermarket applications where dependable wheel speed detection is paramount.