BMW 1 3 Series E81 E87 LCI E88 E90 M3 E92 Speed Cluster Sensor 6780334

BMW 1 3 Series E81 E87 LCI E88 E90 M3 E92 Speed Cluster Sensor is an original wheel control system component designed for BMW 1 and 3 Series models, including the M3 version. Thanks to its factory specification, the sensor ensures proper cooperation with safety systems, such as ABS or traction control, and the use of a pre-owned part allows for cost-effective vehicle maintenance while maintaining compliance with the manufacturer's solutions.

Specifications and technical data

• SKU: 6850375
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6850375
• Substitutable numbers: 34526780334, 6780334, 34526850375, 6850375
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and function of the BMW speed sensor

The speed sensor in BMW E81, E87 LCI, E90, and M3 models is responsible for precise wheel speed reading and transmitting the signal to the vehicle's control units. A properly functioning component of this type:

• supports the stable operation of the ABS system,
• enables effective traction control and electronic stability control,
• contributes to the correct operation of functions related to driving dynamics.

By maintaining factory parameters, the sensor is matched to the BMW electronic architecture, which facilitates seamless integration with the existing installation.

Compatibility and integration with the electronic system

The offered sensor has been designed specifically for the BMW 1 Series E81/E87 LCI and 3 Series E90 platforms, including the M3 variant. This means that the mounting geometry, connector type, and signal characteristics are adapted to the factory wiring harnesses and control units of these models. In practice, this translates into:

• easier installation without the need for wiring modifications,
• preservation of the original operating logic of driver assistance systems,
• reduced risk of diagnostic errors resulting from part incompatibility.

Choosing an original BMW speed sensor allows you to maintain the consistency of the entire electronic system, which is particularly important in vehicles with advanced electronics, such as M3 versions.

Characteristics of the pre-owned part

The presented item is a pre-owned part, sourced from dismantling, which is a beneficial solution for users looking for factory components at a reasonable price. Such components are frequently chosen for:

• maintenance repairs in heavily used vehicles,
• maintaining the original vehicle configuration without resorting to aftermarket replacements,
• service projects where compliance with factory specifications is essential.

Using an original, pre-owned sensor allows you to maintain the braking system and stability control characteristics in accordance with the manufacturer's design.

Application in service, diagnostics, and retrofits

The speed sensor in a BMW is a component often diagnosed when ABS errors, traction control issues, or unusual dashboard messages appear. Replacing it with a functional component is a standard service procedure that:

• restores the correct operation of safety systems,
• eliminates errors stored in the control units,
• stabilizes vehicle behavior in emergency situations.

In modernization and retrofitting projects, especially in sports cars like the M3, the use of original sensors is crucial for maintaining predictable handling characteristics. You can find more about the differences in the construction of sports models and their braking and drivetrain systems in the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses the manufacturers' approach to high-performance components.

If you are interested in a broader context of using dismantled parts for retrofitting BMW vehicles, it is worth checking out the guide Retrofitting in VAG and BMW group cars: How to cheaply upgrade your car using used parts from higher versions?, which describes practical applications of original elements in modernization projects.

System expansion and selection of related BMW components

If you are planning a comprehensive repair or upgrade of the chassis and braking area in your BMW and need other elements from the same group, such as additional sensors, signal cables, or mounting hardware, check out the available parts in the Other BMW category.