OE Quality
60-Day Returns

Standard Ignition PWS307 Disc Brake Pad Wear Sensor - Rear
Reliable Disc Brake Pad Wear Sensor for BMW X3
The Standard Ignition PWS307 disc brake pad wear sensor is designed specifically for BMW X3 models, providing accurate monitoring of brake pad wear. This sensor helps maintain optimal braking performance by alerting drivers when brake pads need replacement.
- Compatible with BMW X3 vehicles
- Connector gender: Female with one oval-shaped connector
- Harness length: 47.5 inches (1206.5 mm) for flexible installation
- Mounts directly on the brake caliper for precise wear detection
- Terminal type: Male pin terminals, two in quantity
Product Features and Specifications
The PWS307 brake pad wear sensor from Standard Ignition features a female oval connector designed for secure and reliable connection. The harness length of 47.5 inches (1206.5 mm) allows for easy routing and installation on the brake caliper. Equipped with two male pin terminals, this sensor ensures consistent electrical contact for accurate brake pad wear monitoring. This part is engineered to meet the specific requirements of BMW X3 models, ensuring compatibility and performance.
Purpose and Benefits of the Brake Pad Wear Sensor
This disc brake pad wear sensor is essential for maintaining safe braking conditions by providing timely alerts when brake pads are worn. It helps prevent issues such as:
- Unexpected brake pad failure
- Reduced braking efficiency
- Damage to brake rotors due to worn pads
- Increased repair costs from delayed maintenance
- Potential safety hazards from compromised braking
Installation Notes and Tips
Installation of the Standard Ignition PWS307 sensor should be performed with care to ensure proper fit and function. The sensor mounts directly on the brake caliper and connects via the female oval connector. Verify the harness routing to avoid interference with moving parts and secure the terminals firmly. It is recommended to inspect the sensor and wiring during brake pad replacement intervals to maintain reliable operation.
Quality Assurance and Warranty Information
Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring dependable performance and durability. The PWS307 disc brake pad wear sensor undergoes rigorous quality control to provide consistent functionality. Warranty coverage details are available through Standard Ignition and typically include protection against defects in materials and workmanship.
| Brand | Standard Ignition |
|---|---|
| Part Number | PWS307 |
| Connector Gender | Female |
| Connector Shape | Oval |
| Functions | Brake Pad Wear Sensor |
| Mounting Location | Brake Caliper |
| Terminal Gender | Male |
| Terminal Type | Pin |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2014 | BMW | X3 | Rear | |
| 2013 | BMW | X3 | Rear | |
| 2012 | BMW | X3 | Rear | |
| 2011 | BMW | X3 | Rear |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.