Holstein 2BWS0251 Disc Brake Pad Wear Sensor - Front

Holstein 2BWS0251 Front Brake Pad Wear Sensor

Holstein Parts 2BWS0251 is a front disc brake pad wear sensor for select BMW applications. It uses a 2-terminal, female round connector with pin terminals to monitor brake pad wear and trigger the vehicle’s warning system when service is needed.

Key Features

• Disc brake pad wear sensor for the front axle
• 2-terminal design with pin terminals
• 1 female round connector
• Direct replacement style for select BMW brake wear monitoring systems
• Holstein Parts product line for brake sensor applications

Detailed Description

This Holstein Parts brake wear sensor is built for BMW models that use an electronic pad wear indicator at the front brakes. The 2BWS0251 is listed for 2010-2013 BMW 120i, 125i, 128i, and 325i front applications, including specific notes for performance-package and production-date variations. For buyers searching for a front brake pad wear sensor for BMW 128i, BMW 125i, or BMW 325i, this part number provides a direct-reference option for the listed vehicles.

Holstein Parts focuses on replacement brake sensor components that match the connector style and terminal layout used by the original system. This part cross-references Beck/Arnley 084-1877 and Standard Ignition PWS265 for the same application. Part number 2BWS0251 is also referenced by multiple aftermarket listings for select BMW front brake wear sensor service.

Vehicle Fitment

• Fits 2013 BMW 125i, front
• Fits 2011-2013 BMW 128i, front; w/ Performance Package
• Fits 2012 BMW 120i, front; From 03/2010, MfrBody Code: E81, Engine Designation: N46N, Not suitable for Performance Parts
• Fits 2010 BMW 120i, front; From 03/2010, MfrBody Code: E81, Engine Designation: N46N, Not suitable for Performance Parts
• Fits 2010-2012 BMW 125i, front; From 03/2010
• Fits 2011-2012 BMW 325i, front; To 03/2010, MfrBody Code: E93N, Engine Designation: N53, Not for vehicles with Usable load increase [S100A], Reinforced brakes [S102A], or Chassis, officials utility vehicle [S102A]
• Fits 2011 BMW 120i, front; From 03/2010, MfrBody Code: E82, Engine Designation: N43, Not suitable for Performance Parts
• Fits 2010 BMW 128i, front; From 03/10
• Fits 2010 BMW 325i, front; From 03/2010, MfrBody Code: E90N, Engine Designation: N52N, For vehicles with Usable load increase [S100A] or Reinforced brakes [S102A] or Chassis, officials utility vehicle [S102A]

What It Helps Address

• Brake wear warning light staying on after pad service
• Damaged or broken front pad wear sensor wiring
• Fault codes related to the brake pad monitoring circuit
• Incorrect sensor connector fitment during brake maintenance
• Restoring proper brake pad wear indication on listed BMW models

Installation Notes

Verify the connector shape, terminal count, and front-axle application before installation. Match the vehicle build date and option notes carefully, especially on BMW 120i, 125i, 128i, and 325i models with performance or brake-package differences. Inspect the sensor routing and mounting path during brake service to avoid pinching or abrasion.

Quality Assurance

Holstein Parts supplies replacement brake sensor components for specific OE-style applications, and this part is cataloged against multiple interchange references for the same BMW front wear-sensor use.