Dorman 684-039 Parking Aid Sensor - Front Center, Front Inner or Rear

Dorman 684-039 Parking Aid Sensor

Dorman 684-039 is a specific-fit parking aid sensor built to match the original sensor’s fit and function on select Mercedes-Benz vehicles. It is designed for dependable parking assist performance in front and rear sensor locations where equipped.

Key Features

• Specific-fit parking aid sensor for direct replacement use
• 3-terminal design with pin terminals
• Male connector and male terminal configuration
• Engineered for durability and reliable operation
• Fits front center, front inner, and rear sensor positions on listed applications
• Package contents: 1 sensor

Detailed Description

This Dorman parking aid sensor, part number 684-039, is made to match the original sensor’s fit and function on select Mercedes-Benz models. It is a direct replacement for vehicles equipped with Parking Guidance Code (230) where specified, helping restore parking assist system operation without changing the vehicle’s original sensor layout. This part cross-references Mercedes-Benz 2125420018 for the same application.

Compatible With 2012-2014 Mercedes-Benz C250, front center, front inner, and rear positions with Parking Guidance Code (230); 2012-2014 Mercedes-Benz C63 AMG, front center, front inner, and rear positions with Parking Guidance Code (230); and 2012-2014 Mercedes-Benz C300 and C350 rear positions. Use Dorman 684-039 when replacing a failed parking aid sensor on these Mercedes-Benz C250, C300, C350, and C63 AMG applications.

What It Helps Address

• Parking assist warning faults caused by a failed sensor
• Inaccurate or inconsistent obstacle detection near the bumper
• Loss of parking guidance function on equipped Mercedes-Benz models
• Sensor-related system alerts tied to damaged or worn OE units
• Restoration of front or rear parking aid coverage at the original mounting location

Installation Notes and Tips

Verify the vehicle’s parking guidance equipment and sensor position before ordering. This sensor uses a 3-pin, male connector layout and does not include wiring harness or mounting hardware. Confirm the bumper location and OE part number match the application before installation. For best results, inspect the connector, wiring, and surrounding bumper components for damage before replacing the sensor.

Quality Assurance

Dorman designs this parking aid sensor to match original fit and function while supporting durable, reliable performance in everyday use. Part number 684-039 is built as a specific-fit replacement for the listed Mercedes-Benz applications.