Holstein 2BWS0277 Disc Brake Pad Wear Sensor - Front or Front Left

Holstein Disc Brake Pad Wear Sensor

The Holstein Parts 2BWS0277 is a disc brake pad wear sensor for BMW front brake applications. It monitors pad wear through a direct electrical signal, helping the vehicle alert the driver when brake pads reach service limits.

Holstein Parts focuses on replacement brake sensors built for specific BMW fitments, and this Holstein 2BWS0277 sensor follows the OE-style connector and terminal layout needed for proper front brake service.

Key Features

• Disc brake pad wear sensor for front brake applications
• Connector shape: oval
• Connector gender: female
• Connector quantity: 1
• Terminal type: pin
• Terminal quantity: 2
• Holstein Parts 2BWS0277 replacement sensor

Detailed Description

This brake wear sensor is used on a wide range of BMW models, including 220i, 230i, 330i, 430i, M2, M3, M4, and M240i front brake applications. It also covers select BMW vehicles with M Sport brake, M Carbon Ceramic Brake, and reinforced brake configurations where listed in the fitment data. The 2BWS0277 is built for front and front-left positions, with application-specific notes that should be checked before ordering.

This part cross-references Beck/Arnley 084-1949 and Raybestos Brakes EWS160 for the same application.

What This Sensor Helps Address

• Brake pad wear warning light staying on after pad service
• Broken or damaged pad wear sensor wiring
• Incorrect brake wear signal after front brake replacement
• Sensor failure caused by worn pads or brake service damage
• Need for a direct replacement on BMW front brake systems

Installation Notes and Tips

• Verify the exact year, model, and brake package before installation.
• Match the position carefully: this listing includes front and front-left applications.
• Inspect the connector shape and terminal count against the original sensor before replacement.
• Check for fitment notes such as M Sport brake, M Carbon Ceramic Brake, performance package, or reinforced brake requirements.
• After installation, confirm the brake warning indicator clears properly once the system is reset.

Quality Assurance

Holstein Parts 2BWS0277 is cataloged as a direct-fit brake pad wear sensor for the listed BMW applications, with OE-style connector and terminal specifications for accurate replacement service.