Global Parts 1813591 Disc Brake Pad Wear Sensor - Rear

Rear Brake Wear Sensor for BMW

Global Parts 1813591 is a direct replacement disc brake pad wear sensor for rear brake applications on select BMW models. It monitors brake pad thickness and sends a wear alert when the pads reach service limits, helping maintain braking performance and driver awareness.

Key Features

• Direct replacement brake wear sensor for rear BMW applications
• Pin terminal type with 2-wire, 2-terminal design
• Oval female connector with male terminals
• Wiring harness included for a complete sensor assembly
• Built for accurate brake pad wear detection
• Cross-references Standard Ignition PWS339 for the same application

Detailed Description

This Global Parts disc brake pad wear sensor is engineered for rear brake systems on BMW 530i, 540i, 740i, X5, X6, M5, M850i xDrive, and other listed applications. Part number 1813591 is made to replace the original brake wear sensor and restore the warning function that alerts the driver when brake pads are thinning. It is a practical service part for BMW brake maintenance, especially when the wear indicator circuit has been triggered or the sensor has been damaged during pad replacement. This part cross-references Standard Ignition PWS339 for the same application.

What It Helps Address

• Brake pad wear warning light staying on after pad service
• Damaged or broken rear brake wear sensor wiring
• Inaccurate brake pad wear detection
• Loss of brake wear alert function on BMW rear brakes
• Sensor replacement during rear brake pad maintenance

Installation Notes and Tips

Verify rear axle placement and connector style before installation. Inspect the sensor routing and connector for damage, then route the harness away from moving suspension and brake components. After installation, confirm the brake wear warning has cleared and that the connector is fully seated. Part number 1813591 is listed for rear fitment on select BMW 530e, 530i, 540i, 740i, X5, X6, M5, M8, and related models.

Quality Assurance

Global Parts supplies this brake wear sensor as a direct replacement part for the listed BMW applications. The design focuses on accurate wear detection and OE-style fitment details, including the correct connector and terminal configuration for the specified vehicles.