YAW Rate Sensor BMW E81 E87 E90 E91 Accelerator Speed Module 6781575

BMW E81 E87 E90 E91 Speed Sensor 6781575 is a component from the Electronic Control Units and Controllers category, designed for precise measurement of rotational speed in selected BMW 1 and 3 Series models. Original BMW OE origin ensures consistency with the vehicle's factory electronics and stable cooperation with control systems. This is a solution for users who expect a proven component instead of random replacements.

Specifications and technical data

• SKU: 6781575-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6781575
• Substitutable numbers: 6781575, 34526781575, 63316961986, 6961986, 63311477674, 1477674
• Category: ECUs & Computer Modules

Purpose and Role in BMW Electronic Systems

The speed sensor in BMW E81, E87, E90, and E91 models is responsible for transmitting information about the current rotational speed of a selected component (e.g., wheel or shaft, depending on the specific application in the car) to the control units. This data is used by safety and comfort systems, such as:

• driving stability and traction control systems,
• ABS/ESP systems,
• controllers responsible for drive logic.

A functional sensor allows for correct communication within the control unit network, reduces the risk of dashboard error messages, and supports smooth, predictable vehicle operation.

Benefits of Using an Original BMW OE Sensor

Choosing a component from the BMW OE group means that its design, signal characteristics, and connectors comply with the manufacturer's factory requirements. This translates to:

• reliable electrical compatibility with the existing wiring harness and control units,
• stable operating parameters under typical usage conditions,
• reduced risk of communication problems on the vehicle's bus.

This makes the sensor suitable both as a replacement part during repairs and for restoring the full functionality of electronic systems in BMW E8x and E9x series cars.

Condition, Verification, and Selection by Part Numbers

The offered item is in used condition, allowing for economical restoration of system functionality while maintaining the original manufacturer's specifications. Before being offered, components of this type are routinely verified for designation consistency and suitability for specific model groups.

The sensor has a dedicated OEM part number and associated interchangeable numbers, which facilitates the selection of the correct variant for a specific vehicle. When matching, it is recommended to compare the markings with the removed component or verify using the VIN in the BMW catalog to ensure full hardware and software compatibility.

BMW Electronic Control Units and Controllers – Expansion and Service

If you are looking for other components from the BMW Electronic Control Units and Controllers category for your car, check out our offer on BMW Electronic Control Units and Controllers, where you will find a wide selection of components for various series and model years.

When planning repairs or upgrades to electronic systems, it is worth consulting the guide on selecting and installing used modules and sensors. Detailed information on compatibility verification, HW/SW designations, and practical installation aspects can be found in the article Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?.

Summary of BMW Speed Sensor Application

BMW E81 E87 E90 E91 Speed Sensor 6781575 is an original BMW OE component designed to work with factory control units in selected 1 and 3 Series models. It enables the restoration of correct rotational speed readings and stable operation of safety and traction systems. This is a practical solution for users who want to maintain consistency with factory electronics while optimizing service costs by using a used, proven component.