Description
BMW 1 3 Series E81 E87 E90 E91 Accelerator Speed Sensor Module is an original component from the Pedals, pedal pads and footrests group, designed for precise rotational speed monitoring in BMW 1 and 3 Series vehicles. This used OEM part ensures factory-fit, stable operating parameters, and consistency with onboard electronics, which is crucial for diagnostics and maintaining the proper functioning of control systems.
Specifications and technical data
- SKU: 6781575
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 6781575
- Substitutable numbers: 34526781575, 6781575
- Category: Pedal Assemblies, Pads & Parts
Purpose and function of the sensor
The rotational speed sensor in BMW E81, E87, E90, and E91 models is responsible for transmitting information about the current rotational speed of the component it is mounted to the control units. This data is used by, among others, traction control systems, electronic stability control, and systems responsible for smooth drivetrain management.
A properly functioning sensor allows for:
- maintaining predictable vehicle behavior under various road conditions,
- reducing control unit errors resulting from incorrect speed readings,
- more efficient diagnostics when warning lights appear.
Advantages of using an original BMW component
Using an original sensor from the BMW group ensures compliance with the vehicle’s factory specifications. This means:
- secure mounting fit to the intended attachment points on the body and drivetrain,
- consistency with the software of control units used in the BMW E81, E87, E90, and E91,
- maintaining operating parameters in accordance with the vehicle manufacturer’s standards.
As a result, replacing a worn or damaged sensor with an original equivalent reduces the risk of compatibility issues that may occur when using aftermarket parts with ambiguous parameters.
Mounting and operational characteristics
The rotational speed sensor from this series is designed as a component that works with the factory BMW electrical harness. A properly matched connector and housing geometry facilitate installation in the intended location without the need for wiring modifications.
When replacing, it is worth paying attention to:
- the cleanliness of the mounting socket and contact surfaces,
- the condition of the wires and the plug in the vehicle’s harness,
- proper routing of the sensor cable to avoid abrasion during operation.
A used OEM component can be a good solution if you want to maintain factory specifications while optimizing repair costs.
Integration with the vehicle control system
The rotational speed sensor works with BMW control electronics, transmitting a signal used for calculations in many modules. A stable rotational speed reading affects:
- the proper operation of driver assistance systems,
- more accurate reactions of active safety systems,
- a reduction in errors stored in the control unit memory.
Replacing a faulty sensor with a functional unit from the same design group helps restore predictable vehicle behavior and facilitates further diagnostics of potential faults.
Further upgrades within Pedals, pedal pads and footrests
If you are planning a comprehensive repair or upgrade of the control and footrest area in your BMW and need other components from the same group, such as pedal covers, footrests, or additional trim elements, check out the available parts in the BMW Pedals, pedal pads and footrests category.
Support for further interior personalization
If, in parallel with replacing elements from the Pedals, pedal pads and footrests group, you are considering improving the ergonomics of the driver’s area by changing the steering wheel to a more advanced model, a guide on selecting premium solutions may be helpful. More information on the principles of replacing and selecting sports steering wheels can be found in the article Personalization and ergonomics – when is it worth replacing the steering wheel with a premium model?.
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