BMW G30 G32 G31 Front Wheel ABS Speed Sensor Unit Left Right N/O/S 6874632

BMW G30 G32 G31 Front Wheel ABS Speed Sensor Unit Left Right is an original safety system component responsible for the precise reading of wheel rotational speed on the front axle. Thanks to its factory-fit design for the BMW 5 Series G30, G31, and G32 platform, it ensures stable cooperation with the ABS and traction control systems, which translates into predictable vehicle behavior in critical road situations. This is a solution for users who expect parameter consistency with the factory car configuration and wish to maintain full functionality of electronic systems.

Specifications and technical data

• SKU: 6874632
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6874632
• Substitutable numbers: 6874632, 34526874632, 6859589, 34526859589
• Location on the vehicle: Front, Left, Right
• Category: ABS Speed Sensors

Purpose and compatibility with BMW G30, G31, G32

The presented item from the ABS Speed Sensor category has been designed for operation on the front axle, on either the left or right side, in BMW 5 Series vehicles of the G30 (sedan), G31 (touring), and G32 (Gran Turismo) generations. Its placement on the vehicle covers the front, allowing for flexible application of the sensor on both sides of the axle, in accordance with the requirements of the specific suspension and wheel hub configuration.

Such a fit is particularly important in modern BMW models, where the ABS system works in conjunction with electronic stability control systems, traction assistants, and advanced driver assistance features. Using a sensor dedicated to this platform minimizes the risk of communication errors in the vehicle's bus and reduces the need for additional adaptation.

Function in the ABS system and benefits of proper selection

The wheel speed sensor is responsible for generating a signal based on which the ABS controller analyzes the rotational speed of individual wheels. A properly functioning component:

• ensures stable operation of the anti-lock braking system during intensive braking,
• supports the operation of traction control and electronic stability control systems,
• reduces the risk of unwanted electronic interventions (e.g., unjustified activation of warning lights),
• allows for maintaining predictable vehicle behavior on surfaces with varying grip.

Selecting a sensor dedicated to a specific BMW generation translates into signal characteristic consistency with the controller's requirements, which is crucial for the correct operation of the entire braking and drivetrain system.

Characteristics of the used component

The offered sensor is a Used item, meaning it has been dismantled and was previously in service in a vehicle. Such components are frequently chosen for servicing modern BMWs when the goal is to maintain the original specification while optimizing repair costs. A used ABS speed sensor, coming from the same model group, allows for maintaining the factory operating characteristics of the system and is a reasonable alternative to replacements with uncertain parameters.

Before installation, a standard service procedure is recommended: checking the wiring harness, the connection socket, and the condition of the impulse ring on the hub. Properly performed installation and diagnostics are the basis for fully utilizing the potential of the offered component.

Professional installation and integration with the drivetrain

Due to the close integration of the wheel speed sensor with the ABS system and systems responsible for power transmission, it is worth entrusting the installation to a specialized service center. Correct routing of the cable, protection of connectors against moisture, and verification of errors in the controller after replacement have a direct impact on the durability and stability of the entire system. For users who want to better understand the relationships between sensors, the differential, and the drivetrain, the following guide will be helpful: Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems.

How to care for a used ABS speed sensor

To extend the trouble-free operation of the sensor, it is worth paying attention to several operational aspects:

• regular cleaning of the hub and steering knuckle area from accumulated dirt and metal filings,
• checking the condition of the cable and mounts during periodic inspections,
• avoiding mechanical tension on the wiring harness during suspension or brake work,
• reacting to the first signs of irregularities (ABS/ESP warning lights, diagnostic errors).

Additional practical tips regarding the operation of dismantled parts, including electronic components, can be found in the guide: How to extend the lifespan of used car parts?.

If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other elements from the same group, such as sensors for other wheels, components cooperating with the ABS system, or additional measuring components, check the available parts in the BMW ABS Speed Sensor category.