Dorman 749-102 Window Regulator - Front Left

Overview of Dorman Window Regulator 749-102 for BMW

The Dorman 749-102 window regulator is designed for electric window operation in select BMW models. This replacement part offers a bolt-on installation and is engineered with durable materials to ensure reliable performance in your BMW 525i, 528i, 530i, 535i, 545i, 550i, and M5 vehicles.

• Compatible with BMW 525i, 525xi, 528i, 528i xDrive, 528xi, 530i, 530xi, 535i, 535i xDrive, 535xi, 545i, 550i, and M5 models
• Part number 749-102 for precise identification
• Electric window operation type without included motor
• Bolt-on attachment type for straightforward installation
• Frame constructed from metal and plastic components for strength and durability
• Plastic gear material designed for smooth window movement

Detailed Product Description

The Dorman 749-102 window regulator is a power window regulator designed specifically for various BMW models, including the 525i and M5 series. It features a combination of metal and plastic frame materials that balance durability with weight considerations. The gear mechanism is made of plastic, which helps reduce noise and wear during operation. This regulator is intended for electric window systems but does not include the motor, allowing for replacement of the regulator assembly alone. The bolt-on attachment type simplifies the installation process, although mounting hardware and installation instructions are not included.

Common Applications and Issues Addressed

• Restores smooth and reliable window movement in BMW 5 Series and M5 models
• Replaces faulty or broken window regulators causing window misalignment or jamming
• Addresses issues with electric window operation where the motor is still functional
• Eliminates window rattling or slipping due to worn regulator components
• Prevents window from falling inside the door panel

Installation Notes and Tips

• Installation requires removal of the door panel and careful handling of window glass
• Mounting hardware is not included; reuse existing bolts or acquire compatible fasteners
• Ensure the window motor is tested and functioning before replacing the regulator
• Follow BMW-specific service manual procedures for safe and proper installation
• Professional installation is recommended if unfamiliar with door panel disassembly

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 749-102 window regulator undergoes quality checks to ensure durability and reliable operation in compatible BMW models. Warranty coverage details should be confirmed at the point of purchase, as they may vary by distributor or retailer.