PowerStop SW-0433 Disc Brake Pad Wear Sensor - Front

Front Euro-Stop Brake Wear Sensor

PowerStop SW-0433 is a front disc brake pad wear sensor for select BMW applications. It is built to match OEM form, fit, and function, with a focus on reliable brake wear monitoring and stable conductivity under high-temperature conditions.

Compatible With 2006 BMW 325i, front; 2006 BMW 330i, front; 2008-2009 BMW 128i, front; and 2010 BMW 128i, front to 03/2010. This PowerStop front Euro-Stop Electronic Brake Wear Sensor is a direct replacement for vehicles that use an electronic pad wear indicator at the front axle.

Key Features

• Front disc brake pad wear sensor for electronic brake wear monitoring
• OEM-style form, fit, and function for straightforward replacement
• Built to meet or exceed OEM requirements
• Engineered for high-temperature resistance and consistent electrode conductivity
• White connector with round connector shape
• 2-wire design with 2 terminals and 1 connector
• Female connector and male terminal configuration
• Includes grommets and 3 grommet points for routing and retention
• Wiring harness length: 25.19 in. / 640 mm

Product Details

The PowerStop Euro-Stop line is focused on brake service parts that restore factory-style operation after pad and rotor replacement. SW-0433 is a front brake pad wear sensor designed for BMW 128i, 325i, and 330i applications listed above, helping maintain the vehicle’s electronic wear-indicator system without changing the original sensor layout. This part cross-references Beck/Arnley 084-1601 and Raybestos Brakes EWS115 for the same application.

Common Issues This Sensor Helps Address

• Brake wear warning light remaining on after pad service
• Damaged or worn front pad wear sensor wiring
• Incorrect wear-indicator readings from an aging sensor
• Sensor failure caused by heat exposure near the brake assembly
• Fitment problems when replacing a worn OEM-style front sensor

Installation Notes

Replace the wear sensor when servicing brake pads if the original sensor is worn, damaged, or triggered. Verify front-axle placement and confirm the connector style, harness routing, and vehicle build date before installation, especially on the 2010 BMW 128i through 03/2010. Inspect the sensor path for abrasion points and secure the harness so it does not contact moving or hot brake components.

Quality Assurance

PowerStop designs Euro-Stop brake wear sensors to match OEM requirements for fit and function, with materials selected to handle elevated brake temperatures and maintain conductivity over extended use. SW-0433 is intended as a direct replacement front sensor for the listed BMW applications.