Mercedes W251 Spped Servotronic Valve Power Steering Rack Sensor A00010921004

Mercedes W251 Spped Servotronic Valve Power Steering Rack Sensor is a specialized electronic component that works in conjunction with the steering gear and control valve. It is responsible for precisely transmitting vehicle speed information to the power steering system, allowing for smooth adjustment of steering assistance based on driving conditions. This used OEM component is a solution technically matched to the factory installation in Mercedes vehicles.

Specifications and technical data

• SKU: A00010921004
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1405453528
• Substitutable numbers: A1405453528, A 140 545 35 28
• Category: ABS Speed Sensors

Purpose and function in the steering system

The presented Mercedes W251 Spped Servotronic Valve Power Steering Rack Sensor works with the Servotronic system in Mercedes W251 class models, integrating vehicle speed information with the operation of the steering gear. Based on the sensor signal, the controller can change the steering characteristics – lighter maneuvering at low speeds and more stable handling at higher speeds.

This element is particularly important in vehicles equipped with speed-sensitive power steering, where signal accuracy affects:

• steering system response to steering wheel movements,
• driving stability at higher speeds,
• maneuvering comfort during parking,
• consistent operation with other electronic vehicle systems.

Application in Mercedes vehicles

The Mercedes W251 Spped Servotronic Valve Power Steering Rack Sensor with this reference is designed as a component that works with the steering gear and Servotronic valve in Mercedes vehicles. Thanks to its factory design and fitment to the manufacturer's installation, it ensures compatibility with the original wiring and the vehicle's electronic architecture.

Before purchasing, it is worth verifying compatibility by OEM number or vehicle VIN to ensure that the sensor will work correctly with the specific steering system configuration and ABS system of the given car.

Benefits of choosing a used OEM sensor

Choosing a used, original speed sensor for a Mercedes is a solution that allows you to maintain the factory characteristics of the Servotronic system while optimizing repair costs. The OEM component is structurally matched to a specific generation of the steering system, which reduces the risk of problems with installation and integration with the vehicle's electronics.

The main advantages of this solution include:

• factory fitment to the electrical installation and Mercedes controllers,
• preservation of the original speed-dependent steering characteristics,
• possibility of economical steering system repair without sacrificing OEM parts,
• consistent operation with the existing ABS system and other electronic modules.

Selection, installation, and compatibility

When selecting such an element, it is crucial to compare the manufacturer's markings and the configuration of the steering and ABS systems in the vehicle. In workshop practice, verification by OEM number, interchangeable numbers, and data from manufacturer catalogs is used to ensure full hardware and software compatibility.

To better understand the principles of selecting used modules and sensors, including hardware and software compatibility issues, it is worth reading the Global Parts guide: used automotive electronics – ECU modules and second-hand sensors. The article discusses, among other things, selection by VIN/OEM, HW/SW compatibility, and practical installation examples.

System expansion and related parts

If you are planning a comprehensive repair or upgrade of the braking zone and traction control system in your Mercedes and need other elements from the same group, such as additional wheel speed sensors, components working with the ABS system, or components responsible for the vehicle speed signal, check the available parts in the Mercedes ABS speed sensor category.