BMW G01 G02 G11 G20 G30 Brake Sensor M Sport Brakes Pedal Travel Sensor 6855309

BMW G01 G02 G11 G20 G30 Brake Sensor M Sport Brakes Pedal Travel Sensor is an original brake control system component designed for BMW G-series models with the M Sport package. This specialized sensor is responsible for precisely detecting the brake pedal position, which is crucial for the operation of safety systems and driving comfort. By using a factory BMW solution, you gain fitment assurance, stable brake system performance, and compatibility with the vehicle's electronics.

Specifications and technical data

• SKU: 6855309-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6855309
• Substitutable numbers: 6855309, 35006855309, 259160
• Category: Additional Brake Sensors & Switches

Purpose and function of the BMW brake pedal sensor

The BMW M Sport Brake Sensor works with the vehicle's electronics, transmitting information about the pedal being pressed and the degree of depression. Based on the signal from the sensor, the following are controlled, among others:

• activation of brake lights,
• brake system assistance,
• stability and traction control systems,
• braking-dependent driving assistant functions.

A functional sensor is essential for the car's proper response to braking, as well as for the correct operation of active safety systems.

Benefits of using an original BMW sensor

Using a component from the Other brake sensors and switches group dedicated to BMW allows you to maintain factory operating parameters of the system. The most important advantages include:

• precise fitment to the electrical installation and mounting points in BMW G01, G02, G11, G20, G30 models with the M Sport package,
• signal consistency with vehicle control unit software,
• stable, repeatable performance characteristics under typical operating conditions,
• reduced risk of onboard system errors resulting from incorrect pedal position readings.

As a result, the sensor is a safe choice for brake system repairs in modern BMW models, where electronics work intensively with mechanics.

Product characteristics and practical application

The presented item belongs to the group of brake control components responsible for generating input signals for control units. In practice, this means that:

• improper sensor operation may cause delayed brake light activation or error messages on the dashboard,
• a properly functioning sensor supports uniform and predictable operation of brake assist systems,
• replacing a worn-out part with an original BMW component helps restore proper system operation without the need for installation modifications.

The product comes from the BMW OE segment, which in practice means maintaining the vehicle manufacturer's quality standards and compliance with factory technical documentation.

Used condition – a conscious choice for BMW repairs

The offered brake pedal sensor is a used item, which allows for a significant reduction in repair costs while maintaining original BMW specifications. For many users, this is a reasonable compromise between price and quality, especially in the case of electronic parts that do not undergo typical mechanical wear to the same extent as consumable parts.

If you want to better understand how to safely use the second-hand parts market and what to look for when purchasing, read the article: Used car parts: myths and facts you need to know. This is a practical addition to your knowledge when planning brake system repairs in your BMW.

Expanding your BMW brake system upgrade

If you are planning a comprehensive repair or upgrade of the braking area in your BMW and need other elements from the same group, such as additional sensors, switches, or control elements, check the available parts in the Other BMW brake sensors and switches category.

For drivers analyzing the cost-effectiveness of different types of components – original, aftermarket, and used – a comparative guide may also be helpful: Original, aftermarket, or used – which car parts are the most cost-effective?. It will allow you to consciously choose a service strategy for your specific BMW model and expected budget.