VDO WR40403 Window Regulator - Front Left

Reliable Front Left Electric Window Regulator for BMW

The VDO WR40403 window regulator is designed specifically for the front left door of select BMW models. Engineered with a durable metal frame, this electric window regulator ensures smooth and consistent window operation without the motor included.

• Compatible with BMW 318i, 318ti, 325i, 328i, and M3 models
• Front left mounting position for precise fitment
• Electric window operation type for seamless control
• Durable metal frame construction for long-lasting performance
• Mounting hardware not included
• Motor not included, designed for use with existing motor

Product Details and Specifications

The VDO WR40403 window regulator is crafted to meet the exact specifications required for the front left door of BMW 318i, 318ti, 325i, 328i, and M3 vehicles. This part features a robust metal frame that provides structural integrity and reliable support for the window glass. It operates electrically, allowing for smooth window movement when paired with the vehicle’s existing motor, which is not included with this part. The regulator does not come with mounting hardware, so ensure you have the necessary components for installation.

Common Applications and Problem Resolution

• Replaces faulty or broken front left window regulators in BMW 318i, 318ti, 325i, 328i, and M3 models
• Restores smooth electric window operation when the regulator mechanism is worn or damaged
• Addresses window alignment issues caused by bent or broken regulator frames
• Eliminates window rattling or sticking due to regulator failure
• Supports repair of windows that fail to stay in position or move unevenly

Installation Notes and Tips

Installation of the VDO WR40403 window regulator requires removal of the door panel and careful handling of the window glass. Since mounting hardware is not included, retain or source the necessary bolts and clips before beginning installation. This part is designed to work with the existing electric motor; verify motor compatibility prior to installation. Proper alignment during installation is critical to ensure smooth window operation and prevent premature wear.

Quality Assurance and Warranty

VDO manufactures the WR40403 window regulator to meet OEM standards for fit and function. The metal frame construction provides durability under normal operating conditions. While specific warranty details are not provided here, VDO products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.