Dorman 740-570 Window Regulator - Front Left

Reliable Window Regulator for Select Mercedes-Benz Models

The Dorman 740-570 window regulator is designed to restore smooth electric window operation in various Mercedes-Benz vehicles. Engineered with durable materials, this part ensures consistent performance for your 260E, 300D, 300E, 300TD, 300TE, 400E, 500E, E300, E320, E420, and E500 models.

• Gear material constructed from plastic for precise movement
• Bolt-on attachment type for secure installation
• Metal and plastic frame materials for balanced strength and flexibility
• Electric window operation compatible, motor not included
• Includes one power regulator unit without mounting hardware or installation instructions

Durable Construction and Design Features

This Dorman window regulator (part number 740-570) features a plastic gear mechanism that provides smooth and reliable window movement. The combination of metal and plastic in the frame offers a sturdy yet lightweight structure, reducing wear over time. Designed as a bolt-on replacement, it fits directly into the existing mounting points of your Mercedes-Benz 260E, 300D, 300E, 300TD, 300TE, 400E, 500E, E300, E320, E420, and E500 models, ensuring compatibility and ease of integration.

Compatible Mercedes-Benz Models and Applications

This window regulator is specifically compatible with electric window systems in the following Mercedes-Benz vehicles: 260E, 300D, 300E, 300TD, 300TE, 400E, 500E, E300, E320, E420, and E500. It is intended for use where the original window regulator has failed or is malfunctioning, restoring proper window function without the need for a motor replacement.

Common Issues Addressed by This Window Regulator

• Window glass failing to move up or down smoothly
• Intermittent or no window movement due to worn regulator gears
• Excessive noise or grinding during window operation
• Window becoming stuck in one position
• Loose or unstable window glass alignment

Installation Notes and Tips

The Dorman 740-570 window regulator is designed for bolt-on installation using existing mounting points. Note that mounting hardware and installation instructions are not included, so retaining original fasteners or sourcing compatible hardware is necessary. Since the motor is not included, verify the condition of your existing window motor before installation. Professional installation is recommended to ensure proper alignment and function.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. While this window regulator does not include a motor or mounting hardware, it is built with durable plastic gears and a reinforced frame to provide reliable service. Please consult Dorman’s warranty policy for specific coverage details related to part number 740-570.