BMW G20 G21 ABS Rotational Wheel Speed Sensor Front Left Right N/O/S DSC 6895660

BMW G20 G21 ABS Rotational Wheel Speed Sensor Front Left Right N/O/S DSC is a precision safety system component responsible for accurately reading wheel rotational speed and communicating with the DSC system. Designed by BMW to factory specifications, it ensures proper integration with the vehicle's electronics and stable operation of ABS and traction control systems. This used OEM component is a sensible choice for brake system maintenance when you prioritize compatibility and predictable performance.

Specifications and technical data

• SKU: 6895660
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6895660
• Substitutable numbers: 34521544002, 1544002, 0265007380, 34526895660, 6895660
• Location on the vehicle: Front, Left, Right
• Category: Other Starters, Alternators, ECUs & Wiring

Sensor purpose and function

The presented rotational wheel speed sensor is designed for installation on the front axle, on the right side, with the possibility of use on the left side as well, depending on the vehicle's mounting specifications. It is responsible for generating a wheel speed signal, which is then analyzed by the DSC system controller. A properly functioning sensor:

• enables effective ABS operation during braking,
• supports the DSC stability control system,
• contributes to the correct operation of traction control and brake assist systems. By maintaining the original signal characteristics, the sensor works seamlessly with the vehicle's factory software, reducing the risk of controller errors and warning lights appearing on the dashboard.

Compatibility and interchangeable numbers

The offered item belongs to the group of original BMW parts, meaning it has been designed for full compatibility with the electrical and mechanical systems of the given model. The sensor has a dedicated OEM part number and associated interchangeable numbers, which facilitates the selection of the correct component during professional repairs. The presence of reference numbers allows for:

• verification of compatibility with a specific body version and brake system,
• trouble-free identification in service catalogs,
• reducing the risk of installing an incorrect sensor. Before purchasing, it is worth comparing the markings in the technical specification with the vehicle data to ensure full compatibility with the DSC system.

Installation and operational characteristics

The ABS rotational wheel speed sensor is mounted in the immediate vicinity of the wheel hub, which is why it must be resistant to variable operating conditions. The design provides stable mounting and a properly routed signal cable, which minimizes the risk of mechanical damage. A properly selected sensor:

• ensures repeatable signal reading across the entire speed range,
• limits the risk of electrical interference in the installation,
• allows for maintaining the factory operating parameters of the ABS/DSC system. A used OEM element is a good solution when you want to maintain the vehicle's original specifications while optimizing service costs.

Product condition and service application

The offered sensor is in used condition, meaning it has been removed from a vehicle and verified for further use. This type of component is suitable for both routine repairs and replacing brake system elements after a sensor failure, cable damage, or the appearance of DSC system errors. By choosing an original BMW sensor, you gain:

• preservation of the factory operating characteristics of safety systems,
• consistency with other ABS system components,
• the ability to perform precise diagnostics based on manufacturer data.

Related components and technical knowledge

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 additional sensors, signal cables, or mounting elements, check the available parts in the Other BMW category. For a better understanding of the differences in the construction of sports drivetrains and braking systems and their impact on component selection, it is worth reading an article comparing high-performance versions with standard models: Audi RS vs other models – what is hidden under the hood and chassis?.