Beck Arnley 084-1878 Disc Brake Pad Wear Sensor - Rear

Rear Brake Pad Wear Sensor for BMW

Beck Arnley 084-1878 is a rear disc brake pad wear sensor for select BMW applications. It is built to match foreign nameplate OE specifications for form, fit, and function, giving you a direct replacement for the original sensor on covered BMW 128i, 135i, 328i, 335i, 335i xDrive, 328i xDrive, 323i, and 335d models.

Key Features

• Rear disc brake pad wear sensor for select BMW vehicles
• OE-style form, fit, and function for proper replacement
• Beck Arnley part number 084-1878
• Fits 2010-2013 BMW rear brake applications listed below
• Built for foreign nameplate applications with application-specific sourcing

Detailed Description

Beck Arnley 084-1878 is a rear brake pad wear sensor made for BMW models that use an electronic pad wear monitoring system. This sensor helps restore accurate brake wear indication on vehicles such as the BMW 328i rear, BMW 335i rear, and BMW 128i rear when the original sensor is worn or damaged. Beck Arnley sources parts to OE specifications so the replacement matches the original part’s required form and function.

This part cross-references no listed alternate part numbers in the provided data. Use Beck Arnley 084-1878 when you need a rear disc brake pad wear sensor for the covered BMW applications.

What It Helps Address

• Brake pad wear warning light staying on after pad service
• Damaged or broken rear wear sensor wiring
• Inaccurate brake pad wear monitoring
• Sensor failure caused by brake pad replacement or road debris
• Loss of proper wear-indicator function on BMW rear brakes

Installation Notes and Tips

• Confirm rear position before ordering; this sensor is not for front applications.
• Match the vehicle year and model exactly, including 2010 BMW 128i and 323i from 3/10.
• Inspect the brake pad wear circuit and connector condition during brake service.
• Verify the sensor routing follows the original path to avoid damage from suspension movement.

Quality Assurance

Beck Arnley parts are sourced to meet foreign nameplate OE specifications for form, fit, and function. That makes 084-1878 a direct-fit replacement choice for BMW brake service on the listed rear applications.

Compatible Vehicles

• Fits 2011-2013 BMW 128i, rear
• Fits 2011-2013 BMW 135i, rear
• Fits 2011-2013 BMW 328i, rear
• Fits 2011-2013 BMW 335i, rear
• Fits 2011-2013 BMW 335i xDrive, rear
• Fits 2011-2012 BMW 328i xDrive, rear
• Fits 2011 BMW 323i, rear
• Fits 2011 BMW 335d, rear
• Fits 2010 BMW 128i, rear, from 3/10
• Fits 2010 BMW 323i, rear, from 3/10