BMW 1 3 Series E81 E87 E88 E90 E91 E92 Accelerator Speed Sensor 6850374 6778421

BMW E81 E87 E90 E91 LCI Speed Sensor is an original part from the Other category, designed for facelifted (LCI) BMW 1 and 3 Series systems. This is a precise rotational speed sensor that works with the vehicle's electronics, ensuring stable operation of control systems and correct diagnostics.

Specifications and technical data

• SKU: 6850374
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6850374
• Substitutable numbers: 34526850374, 6850374, 34526778421, 6778421
• Category: Other Starters, Alternators, ECUs & Wiring

Application of the Speed Sensor in BMW

The BMW Speed Sensor is responsible for transmitting information about the rotational speed of selected powertrain or chassis components to the control units. A correct signal from the sensor is crucial for, among others:

• stable operation of safety and traction control systems,
• precise functioning of driver assistance systems,
• correct interpretation of data by control units and diagnostic testers.

Thanks to its proper fit for BMW E81, E87, E90, and E91 LCI models, this part allows for maintaining the original operating parameters of the electronic systems.

Selection and Compatibility with BMW

The presented sensor comes from the BMW line, which means compliance with the manufacturer's factory standards. The part has a dedicated OEM part number and assigned replacement numbers, which facilitates verification of compatibility with a specific vehicle configuration in BMW catalogs or service software.

Before purchasing, it is advisable to compare the markings with the vehicle's documentation or the removed part to confirm full compatibility with the specific engine version and model year. This approach minimizes the risk of installation errors and speeds up service work.

Characteristics of a Used Part

The offered sensor is a used part, which in practice means it comes from a dismantled vehicle and has been verified for its suitability for further use. For many users and workshops, this is a reasonable compromise between repair cost and maintaining the original BMW specification.

For rotational speed sensors, it is important that the electrical connectors, housing, and mounting socket are in a condition that allows for correct seating and stable connection with the wiring harness. A used OEM part often provides a better fit than cheaper aftermarket alternatives of uncertain origin.

Benefits of Using an Original BMW Sensor

Using an original speed sensor in BMW E81, E87, E90, and E91 LCI allows for maintaining consistency of operating parameters with the manufacturer's design. The most important benefits include:

• stable measurement signal – crucial for the correct operation of electronic systems,
• proper geometric fit to the mounting socket,
• compatibility with the control unit's factory software,
• easier diagnostics in case of potential faults.

For workshops specializing in the BMW brand, this is a solution that reduces the number of service returns related to incorrect system operation after using unverified aftermarket parts.

Other Parts from the BMW Other Category

If you are also looking for other parts from the BMW Other category for your car, check out our dedicated offer – you will find a wide selection of components tailored to various models of this brand: other BMW parts.

Technical Knowledge and Part Selection

When working with advanced powertrain and electronic systems, it is advisable to use reliable sources of knowledge. To compare solutions used in different brands and vehicle segments, you can refer to material describing the construction of sports models and their powertrains: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?. This provides a good technical background for understanding the important role of precise sensors in modern cars.

If you are considering whether new or used parts would be a better choice in your case, a guide discussing cost and operational differences may also be helpful: Car Parts – New or Used? Comparing Costs, Quality, and Durability. This will make it easier to assess when a used speed sensor will be an optimal service solution.