Dorman 740-485 Window Regulator - Front Right

Overview of Dorman 740-485 Window Regulator for BMW

The Dorman 740-485 window regulator is designed for electric window operation in select BMW models. This replacement part ensures smooth window movement and reliable performance for your BMW 323i, 325i, 325xi, 328i, 330i, and 330xi vehicles.

• Compatible with BMW 323i, 325i, 325xi, 328i, 330i, and 330xi models
• Electric window operation type
• Durable metal and plastic frame construction
• Plastic gear material for consistent function
• Bolt-on attachment type for secure installation
• Includes one power regulator unit

Detailed Product Description

The Dorman 740-485 window regulator features a combination of metal and plastic frame materials that provide structural integrity while maintaining lightweight design. The plastic gear material is engineered to deliver smooth and quiet window movement. This part is designed for electric window systems and does not include a motor, making it suitable for vehicles where the motor remains functional or is replaced separately. The bolt-on attachment type allows for a straightforward and secure installation process. Note that mounting hardware and installation instructions are not included with this part.

Compatible BMW Models and Use Cases

This window regulator is specifically compatible with BMW 3 Series models including the 323i, 325i, 325xi, 328i, 330i, and 330xi. It is intended for use in electric window systems where the regulator mechanism requires replacement without the motor. Common issues this part addresses include:

• Window failing to move up or down smoothly
• Window becoming stuck or jammed in the door frame
• Grinding or unusual noises during window operation
• Loose or unstable window glass movement
• Non-responsive electric window controls due to regulator failure

Installation Notes and Tips

Installation of the Dorman 740-485 window regulator requires removal of the door panel and careful handling of the window glass. Since mounting hardware and instructions are not included, it is recommended to retain original hardware or acquire compatible bolts for installation. Ensure the window glass is properly aligned during installation to prevent binding. Professional installation is advised if unfamiliar with door panel disassembly or window regulator replacement.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 740-485 window regulator undergoes quality checks to ensure durability and reliable operation in BMW vehicles. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts. Consult product packaging or Dorman’s official resources for exact warranty terms.