Global Parts 1815881 Disc Brake Pad Wear Sensor - Rear

Rear Brake Wear Sensor for BMW

Global Parts 1815881 is a direct replacement rear disc brake pad wear sensor for select BMW applications. It monitors brake pad thickness and provides 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 brake applications
• Engineered for accurate brake pad wear detection
• Helps alert the driver when brake pads are thinning
• Built for select BMW 230i, 330i, 430i, M340i, M440i, i4, and Z4 models
• Cross-references Holstein 2BWS0511 for the same application
• Cross-references OE numbers 34356870354 and ES115918 for the same application

Detailed Description

This Global Parts brake wear sensor is made for rear brake systems on select BMW vehicles, including 2019-2025 BMW Z4, 2019-2025 BMW 330i, 2020-2024 BMW M340i, 2021-2025 BMW 430i, and 2022-2025 BMW i4 applications. Part number 1815881 is designed as a direct replacement for the original sensor so the brake warning system can continue to monitor pad wear accurately.

When brake pads thin over time, the sensor helps trigger a service alert before wear progresses further. That makes it a practical replacement for BMW 230i rear brake wear sensor service, BMW 330e rear brake wear sensor replacement, and BMW M440i rear brake wear sensor applications where maintaining proper brake monitoring is important.

What It Helps Address

• Brake pad wear warning light staying on after pad service
• Faulty or damaged rear brake wear sensor
• Inaccurate brake pad wear monitoring
• Loss of brake wear alert function on select BMW models
• Need for a direct replacement sensor during brake maintenance

Installation Notes and Tips

Install on the rear brake position only for the listed BMW applications. Verify the connector style and routing against the original sensor before installation. After brake service, confirm the warning system resets properly and inspect the sensor path for damage, pinching, or contamination.

Quality Assurance

Global Parts 1815881 is built as a direct replacement brake wear sensor for the listed BMW fitments and is intended to restore proper brake pad wear detection. It is engineered for reliable signal performance in the rear brake system.