Brembo A00437 Disc Brake Pad Wear Sensor - Rear

Brembo Rear Brake Pad Wear Sensor

The Brembo A00437 is a rear disc brake pad wear sensor built to OE specifications for BMW applications. It monitors brake pad thickness and triggers a warning when the pads reach minimal remaining life, helping you stay ahead of brake service on 2010-2013 BMW 128i, 135i, 328i, 328i xDrive, 335i, 335i xDrive, 335is, and 335d models.

As part of Brembo’s Premium OE Equivalent Wear Sensor line, this sensor is designed as a direct replacement for the original brake pad wear sensor used on the vehicle. Brembo recommends replacing the wear sensor whenever the brake pads are replaced, especially on rear brake service for BMW 3 Series and 1 Series applications.

Key Features

• Electronic brake pad wear sensor for rear brake applications
• OE-spec replacement for factory-style warning system operation
• Monitors pad thickness and sends a wear warning at minimal material
• Designed for BMW rear brake service on 128i, 135i, 328i, 328i xDrive, 335i, 335i xDrive, 335is, and 335d
• Part number A00437 for easy identification and ordering
• Cross-references Dorman - HELP 14797 and URO 34356792564 for the same application

Detailed Description

Brembo A00437 is a disc brake pad wear sensor made for rear brake systems that use an electronic pad-thickness warning circuit. When the pad material wears down to the sensor point, the system signals the driver that replacement is due. This helps maintain proper brake warning function on BMW rear brake setups and supports routine maintenance planning for 2010-2013 BMW 128i, 135i, 328i, 328i xDrive, 335i, 335i xDrive, 335is, and 335d models. The Brembo Premium OE Equivalent Wear Sensor line focuses on factory-style fit and function, making A00437 a practical replacement during brake pad service.

What It Helps Address

• Brake pad wear warning light staying on after pad service
• Failed or damaged rear brake wear sensor
• Inaccurate pad wear alerts from a worn sensor
• Brake service on BMW rear disc brake systems with electronic wear monitoring
• Restoring proper pad-thickness warning function on BMW 1 Series and 3 Series models

Installation Notes and Tips

Replace the wear sensor during brake pad replacement, as Brembo recommends. Verify rear position and confirm vehicle application before installation. Inspect the sensor routing and connector condition during service, and clear any brake warning message after the repair is complete. For fitment, this part is listed for 2010-2013 BMW 128i rear, 2011-2013 BMW 135i rear, 2011-2013 BMW 328i rear, 2011-2013 BMW 328i xDrive rear, 2011-2013 BMW 335i rear, 2011-2013 BMW 335i xDrive rear, 2011-2013 BMW 335is rear, and 2011 BMW 335d rear.

Quality Assurance

Brembo manufactures this sensor to OE specifications for direct replacement use in the listed BMW rear brake applications. Part number A00437 is built for factory-style wear sensor operation and consistent brake warning performance.