VEMO V30-72-0038 Brake

VEMO V30‑72‑0038 Brake Sensor

The VEMO V30‑72‑0038 is a high‑performance ABS wheel speed sensor designed specifically for the rear axle of Mercedes‑Benz C‑class vehicles, including the W204, S204, and C204 models. This sensor plays a critical role in the vehicle’s anti‑lock braking system by accurately measuring wheel rotation speed and transmitting this data to the ABS control unit.

Key Functionalities

• Precise Wheel Speed Measurement: Utilizes a magnetic pickup coil that generates voltage pulses proportional to wheel rotation, ensuring reliable detection of slip conditions during braking.
• Robust Signal Output: Provides a clean, low‑noise signal compatible with the Mercedes ABS architecture, enabling seamless integration without additional filtering.
• High Durability: Constructed from corrosion‑resistant materials and sealed against dust, water, and temperature extremes typical of automotive environments.
• Compact Design: Fits within the existing sensor housing on the rear wheel hub, requiring no modification to the vehicle’s suspension or brake components.

Technical Specifications

Installation Overview

The installation process follows the standard procedure for rear wheel speed sensors on Mercedes‑Benz platforms. Key steps include:

1. Remove the existing sensor: Detach the old ABS sensor from the wheel hub using a socket set, ensuring the brake disc is not damaged.
2. Clean the mounting surface: Remove any debris or corrosion to guarantee proper contact and seal integrity.
3. Attach the V30‑72‑0038: Align the sensor with the hub’s mounting holes, insert the bolt, and tighten to manufacturer torque specifications.
4. Reconnect wiring: Connect the three‑wire harness—ground, signal, and power—to the corresponding pins on the vehicle’s ABS module.
5. Verify operation: Use a diagnostic scan tool to confirm sensor output and ensure no fault codes are present.

Performance Benefits

• Enhanced Braking Stability: Accurate wheel speed data allows the ABS system to modulate brake pressure precisely, preventing wheel lock‑up even under harsh braking conditions.
• Improved Safety: Reliable sensor performance contributes directly to vehicle safety by maintaining traction and steering control during emergency stops.
• Long‑Term Reliability: The sensor’s robust construction reduces the likelihood of failure, minimizing maintenance costs and downtime.

Compatibility Notes

The VEMO V30‑72‑0038 is engineered to match the exact electrical and mechanical specifications required by Mercedes‑Benz C‑class rear axle ABS modules. It is interchangeable with OEM sensors bearing part numbers such as 2049050100, A2045400317, and 2045400317, ensuring seamless integration without compromising system integrity.

Quality Assurance

Each sensor undergoes rigorous testing to meet or exceed Mercedes‑Benz quality standards. This includes:

• Electrical performance tests (signal amplitude, frequency response)
• Environmental endurance trials (temperature cycling, humidity exposure)
• Mechanical stress assessments (vibration, shock resistance)

Conclusion

The VEMO V30‑72‑0038 Brake Sensor delivers dependable, high‑precision wheel speed detection essential for the effective operation of Mercedes‑Benz C‑class ABS systems. Its durable construction, exact compatibility, and proven performance make it an optimal choice for maintaining vehicle safety and braking reliability.