Dorman 749-638 Window Regulator - Front Right

Overview of Dorman 749-638 Window Regulator for Audi A4 Models

The Dorman 749-638 window regulator is designed specifically for Audi A4, A4 Quattro, RS4, and S4 models. This electric window regulator offers reliable operation with a durable metal and plastic frame, ensuring smooth window movement without the motor included.

• Compatible with Audi A4, A4 Quattro, RS4, and S4
• Electric window operation type
• Durable metal and plastic frame construction
• Plastic gear material for consistent performance
• Bolt-on attachment type for secure installation
• Mounting hardware not included
• Does not include motor or installation instructions
• Package contains one power window regulator

Detailed Product Description

The Dorman 749-638 window regulator is engineered to replace the electric window regulator assembly in select Audi A4 series vehicles. Featuring a combination of metal and plastic frame materials, this part balances strength and weight to maintain proper window alignment and operation. The plastic gear material is designed to mesh smoothly with the window motor (sold separately), providing reliable window movement. The bolt-on attachment type allows for a secure fit using existing mounting points on the door. Note that this regulator does not include the motor or mounting hardware, so those components must be sourced separately if needed.

Common Applications and Issues Addressed

• Restores electric window functionality in Audi A4, A4 Quattro, RS4, and S4 models
• Replaces worn or broken window regulators causing window misalignment or failure
• Solves issues with window sticking or slow movement
• Addresses rattling or loose window operation due to damaged regulator frame
• Provides a direct replacement for factory window regulator assemblies

Installation Notes and Tips

• Installation requires removal of the door panel and disconnection of the window motor
• Mounting hardware is not included; reuse existing bolts or purchase separately
• Ensure proper alignment of the regulator frame before tightening bolts
• Verify window operation before reassembling the door panel
• Professional installation is recommended if unfamiliar with door panel removal and window regulator replacement

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 749-638 window regulator undergoes quality checks to ensure durability and reliable performance in Audi A4, A4 Quattro, RS4, and S4 vehicles. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or retailer.