OE Quality
60-Day Returns

PowerStop SW-0503 Disc Brake Pad Wear Sensor - Front or Rear
PowerStop Euro-Stop Electronic Brake Wear Sensor Overview
The PowerStop - Euro-Stop Electronic Brake Wear Sensor SW-0503 is designed to provide accurate monitoring of disc brake pad wear for select Mercedes-Benz models. This sensor helps maintain optimal braking performance by alerting drivers when brake pads require replacement.
- Compatible with Mercedes-Benz ML55 AMG and ML500 models
- Wiring harness length of 115 mm (4.527 inches) for precise fitment
- Single wire and connector design for streamlined installation
- Black round male connector with female terminal for secure connection
- Butt terminal type ensuring reliable electrical contact
- No grommets included
Product Line Details: PowerStop - Euro-Stop Electronic Brake Wear Sensor
The PowerStop - Euro-Stop Electronic Brake Wear Sensor line focuses on providing high-quality brake wear sensors tailored for European vehicles. This product line emphasizes precise fitment and reliable electrical connections, ensuring consistent brake pad wear monitoring. The SW-0503 sensor is part of this line, engineered specifically for Mercedes-Benz ML55 AMG and ML500 models to maintain factory-level performance standards.
Technical Description and Features
The SW-0503 sensor features a 115 mm (4.527 inch) wiring harness length, allowing for proper routing and connection within the brake system of compatible Mercedes-Benz vehicles. It includes a single wire and connector, simplifying the installation process while maintaining accurate signal transmission. The black round male connector mates with a female terminal using a butt terminal type, providing a secure and stable electrical connection. This sensor does not include grommets, so ensure proper protection during installation to avoid wire damage.
Applications and Problem Solving
- Monitors disc brake pad wear on Mercedes-Benz ML55 AMG and ML500
- Prevents brake system failure due to worn pads by providing timely alerts
- Helps maintain consistent braking performance and safety
- Reduces risk of costly brake rotor damage from worn pads
- Ensures compliance with vehicle brake system monitoring requirements
Installation Notes and Tips
When installing the PowerStop SW-0503 sensor, verify the wiring harness length matches the vehicle’s routing requirements. The single wire and connector design simplifies connection, but care should be taken to avoid pinching or damaging the wiring. Since grommets are not included, use appropriate protective measures to secure the wiring harness and prevent abrasion. Confirm the male round connector properly mates with the female terminal to ensure reliable sensor operation.
Quality Assurance and Warranty
PowerStop manufactures the SW-0503 sensor to meet OEM specifications for Mercedes-Benz ML55 AMG and ML500 models. While specific warranty details are not provided, PowerStop products typically undergo rigorous quality control to ensure durability and performance. For warranty information, refer to PowerStop’s official documentation or contact authorized distributors.
| Brand | PowerStop |
| Part Number | SW-0503 |
| Position | PowerStop - Euro-Stop Electronic Brake Wear Sensor, Rear and Front |
| Wiring Harness Length | 115.00 |
| Wiring Harness Length | 4.527 |
| Connector Color | Black |
| Terminal Type | Butt |
| Grommets Included | No |
| Wire Quantity | 1 |
| Connector Quantity | 1 |
| Connector Shape | Round |
| Terminal Quantity | 1 |
| Connector Gender | Male |
| Terminal Gender | Female |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2005 | Mercedes-Benz | ML500 | Rear | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2005 | Mercedes-Benz | ML500 | Front | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2004 | Mercedes-Benz | ML500 | Rear | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2004 | Mercedes-Benz | ML500 | Front | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2003 | Mercedes-Benz | ML500 | Rear | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2003 | Mercedes-Benz | ML500 | Front | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2003 | Mercedes-Benz | ML55 AMG | Rear | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2003 | Mercedes-Benz | ML55 AMG | Front | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2002 | Mercedes-Benz | ML500 | Rear | From Chassis # 289559; From Chassis # 754620; PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2002 | Mercedes-Benz | ML500 | Front | From Chassis # 289559; From Chassis # 754620; PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2002 | Mercedes-Benz | ML55 AMG | Rear | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2002 | Mercedes-Benz | ML55 AMG | Front | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2001 | Mercedes-Benz | ML55 AMG | Rear | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2001 | Mercedes-Benz | ML55 AMG | Front | PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2000 | Mercedes-Benz | ML55 AMG | Rear | From Chassis # 289560; From Chassis # 754620; PowerStop - Euro-Stop Electronic Brake Wear Sensor |
| 2000 | Mercedes-Benz | ML55 AMG | Front | From Chassis # 289560; From Chassis # 754620; PowerStop - Euro-Stop Electronic Brake Wear Sensor |
* 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.