Mercedes W204 C63 AMG Wheel ABS Speed Sensor Front Left Right N/O/S A2049053005

Mercedes W204 C63 AMG Wheel ABS Speed Sensor Front Left Right N/O/S designed for the front axle (left or right side) is a component responsible for precise wheel speed reading and the proper operation of the anti-lock braking system. This original, pre-owned component allows you to maintain factory performance parameters of the safety system and reduce the risk of ABS and traction control errors.

Specifications and technical data

• SKU: A2049053005
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2049053005
• Substitutable numbers: A2049053005, A 204 905 30 05
• Location on the vehicle: Front, Left, Right
• Category: ABS Speed Sensors

Application and function in the braking system

The presented sensor operates on the front axle, on either the left or right side, working in conjunction with the pulse ring and the brake system control unit. Based on the signal from this component, the ABS system regulates pressure in the brake circuits, preventing wheel lock-up during heavy braking and supporting the operation of electronic stability control systems.

For Mercedes W204 C63 AMG models, a properly functioning wheel speed sensor is crucial for:

• maintaining vehicle stability during emergency braking,
• correct operation of the traction control and ESP systems,
• eliminating ABS error messages on the instrument cluster,
• maintaining predictable vehicle behavior in low-grip conditions.

Technical characteristics and installation

The sensor is structurally matched to the front suspension of the Mercedes W204 C63 AMG, which allows for installation at factory mounting points on either the left or right side. The connector layout and body shape are adapted to the original wiring harness and steering knuckle geometry, allowing the component to be plugged into the existing system without the need for modifications.

When replacing, it is recommended to:

• thoroughly clean the mounting socket in the steering knuckle,
• check the condition of the vehicle's wiring and plug,
• verify the working distance between the sensor and the pulse ring,
• perform ABS system diagnostics after installation to clear stored error codes.

Benefits of using an original Mercedes sensor

The original Mercedes component ensures compatibility with the factory operating characteristics of the braking system, which translates into stable performance of safety systems. A pre-owned OEM component is a good alternative to aftermarket replacements, especially in high-performance cars like the C63 AMG, where the precision of wheel speed readings is essential for vehicle handling.

Choosing this solution allows you to:

• maintain parameter consistency with other system components,
• minimize the risk of electrical or mechanical incompatibility,
• reduce repair costs while maintaining high component quality.

Selecting used electronics and sensors

When choosing a used wheel speed sensor, it is worth paying attention to compatibility with the specific body version and braking system, as well as the condition of the electrical connectors. Additional tips on the safe selection and use of electronic components, such as control units, comfort modules, or parking sensors, can be found in the article The second life of electronics – when is it worth choosing used engine control units, comfort modules, and parking sensors?, which discusses the practical aspects of using components from the secondary market.

Expanding your Mercedes ABS system service

If you are planning a comprehensive repair or upgrade of the braking area in your Mercedes and need other elements from the same group, such as additional sensors, signal cables, or components working with the anti-lock system, check the available parts in the Mercedes ABS speed sensor category.