VW Volkswagen Golf R Mk7 Tiguan 5N Wheel Speed Sensor Rear Left N/S WHT003857B

VW Volkswagen Golf R Mk7 Tiguan 5N Wheel Speed Sensor Rear Left N/S is an original component from the ABS speed sensor group, designed to operate within the vehicle's traction control and stability system. Mounted on the rear left axle, it is responsible for precise wheel speed reading and signal transmission to the controller, which ensures safe and predictable operation of the ABS and ESP systems.

Specifications and technical data

• SKU: WHT003857B
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: WHT003857B
• Substitutable numbers: WHT003857B, WHT 003 857 B, WHT 003 857 C, WHT003857C
• Location on the vehicle: Rear, Left
• Category: ABS Speed Sensors

Purpose and function in the vehicle

The presented sensor is dedicated for installation in the rear left wheel hub area. Its task is to generate a rotational speed signal, which is used by the braking system to modulate pressure in the brake circuits. This allows the system to limit wheel slip during braking, support traction control, and maintain vehicle stability. The component operates in a demanding environment – near the brake, exposed to temperature changes, moisture, and contamination. Proper fitment and correct positioning on the vehicle are crucial for a stable signal and correct interaction with the vehicle's electronics.

Application in Volkswagen models

The sensor has been designed for selected Volkswagen models, including the sports version of the Golf R Mk7 generation and the Tiguan 5N SUV. This means structural compatibility with the rear left axle of these vehicles, the correct connection socket, and matched signal characteristics for the factory brake system controller. By using a component that complies with factory standards, the consistency of safety systems is maintained, and the risk of errors in the controller memory or incorrect wheel speed readings is minimized.

Performance characteristics and installation

As an element from the ABS speed sensor category, the product is designed for continuous operation under varying road conditions. Proper seating in the steering knuckle or mounting bracket and correct routing of the signal cable are essential to avoid mechanical damage and data transmission interference. When replacing, it is recommended to:

• thoroughly clean the mounting socket of corrosion and dirt,
• check the condition of the impulse ring or toothed wheel on the hub,
• inspect the electrical wiring for abrasions and insulation damage,
• clear any errors in the controller after installation and perform a test drive. This approach allows for restoring full functionality of the ABS system and reduces the risk of warning lights reappearing on the instrument cluster.

Condition of the item and benefits of choosing a used sensor

The offered sensor is in Used condition, which means it has been dismantled and was previously operated in a vehicle. This type of component, when following appropriate testing procedures, can be an economical solution while maintaining compliance with factory specifications. In many cases, this allows for reducing repair costs without sacrificing the original design and proper fitment. If you want to better understand how to safely select used electronic and sensory components for your car, it is worth checking out the Global Parts guide: Used automotive electronics – ECU modules and second-hand sensors. You will find practical tips there regarding selection by part numbers, compatibility, and installation.

System expansion and selection of other sensors

If you are planning a comprehensive repair or upgrade of the braking zone in your Volkswagen and need other elements from the same group, such as additional wheel sensors, signal wiring elements, or compatible modules working with the traction control system, check the available parts in the Volkswagen ABS speed sensor category. Selecting components from one functional group allows for maintaining consistency in system operating parameters, facilitates diagnostics, and limits the risk of accidental incompatibilities between individual system elements.