2219056100 Electric Wheel Speed Sensor for Mercedes Benz S-CLASS W221 V221 M651

The 2219056100 Electric Wheel Speed Sensor is a precision-engineered electronic component specifically designed for the Mercedes-Benz S-Class W221 sedan and V221 long-wheelbase models equipped with the M651 2.1L turbocharged diesel engine. This sensor, also known as an ABS sensor or inductive speed sensor, is mounted at each wheel hub and continuously monitors individual wheel rotational speed. It transmits real-time data to the vehicle's Electronic Stability Control (ESC), Anti-lock Braking System (ABS), and traction control modules. As a direct OEM-grade replacement, this sensor restores accurate speed signal acquisition, ensuring optimal safety system performance and proper drivetrain management.

• OEM Direct Fitment: Engineered to replace original part number 2219056100, designed exclusively for Mercedes-Benz S-Class W221 and V221 models with the M651 diesel engine.

• Active Hall-Effect or Inductive Technology: Utilizes precise magnetic sensing technology (Hall-effect or variable reluctance, depending on OE specification) to generate clean, consistent wheel speed signals at both low and high rotational speeds.

• High-Temperature Resistant Construction: Manufactured with a durable thermoplastic housing and heat-resistant internal components, capable of withstanding brake system temperatures and underbody exposure.

• Integrated Sealing and Protection: Features a sealed connector interface and rubber grommet to prevent moisture, dust, and road salt ingress, ensuring long-term electrical reliability.

• Corrosion-Resistant Mounting Bracket: Includes a stainless steel or coated metal bracket with precise bolt-hole alignment for secure attachment to the wheel hub or steering knuckle.

• Oversized Sensor Tip (where applicable): Designed with an extended or specifically shaped sensing tip to maintain an accurate air gap between the sensor and the tone ring or magnetic encoder.

• Eliminates ABS and ESC Warning Lights: A faulty wheel speed sensor is one of the most common causes of illuminated ABS, ESP, or traction control warning lights. Replacing it with this high-quality sensor clears error codes and restores full safety system functionality.

• Restores Anti-Lock Braking and Stability Control: Without accurate wheel speed data, the ABS cannot modulate brake pressure during emergency stops, and the stability control system cannot detect wheel slip. This replacement restores these critical safety features.

• Prevents Erroneous Speedometer or Transmission Behavior: Some Mercedes-Benz models use wheel speed sensor inputs for speedometer display and transmission shift logic. A failed sensor can cause erratic shifting, incorrect speed readings, or limp mode. This sensor resolves those issues.

• Specifically Calibrated for M651 Diesel Models: Unlike universal sensors, this unit is tuned for the specific tone ring design and signal voltage requirements of the W221/V221 chassis with the M651 engine, ensuring plug-and-play compatibility.

• Durable Construction for Long Service Life: Engineered to withstand harsh underbody conditions including brake dust, heat cycles, road salt, and water immersion, offering extended replacement intervals compared to low-quality aftermarket alternatives.

• Simple Plug-and-Play Installation: Designed as a direct electrical connector fit with no need for programming, cutting, or soldering, saving diagnostic and installation time for professional mechanics and experienced DIY users.