NPAUTO Rear Left Power Window Regulator with Motor for BMW 3 Series E90/E91 (2006–2011) — 5‑Pin OE Fit 748-468

NPAUTO Rear driver-side (left) power window regulator with integrated motor — a direct OE-fit replacement for many 2006–2011 BMW 3 Series E90/E91 models (OE 748-468).

If your rear left window moves slowly, binds, or won’t operate, replacing the entire regulator and motor assembly restores reliable, quiet operation without modifying the door. This NPAUTO unit is designed to match factory mounting points and electrical connectors for a straightforward swap on compatible BMW sedans and wagons, helping you avoid time-consuming adjustments or expensive dealer repairs.

Which BMW models will this NPAUTO regulator fit?

This assembly is compatible with a wide range of BMW 3 Series E90 and E91 vehicles built between 2006 and 2011. It covers standard and xDrive variants as well as M3 models listed below.

• Fits: 2006–2011 BMW 323i, 325i, 328i, 330i, 335i, 335d (sedan/wagon depending on year).
• Includes fitments for 325xi, 328xi, 330xi, 335xi, and M3 E90 where applicable.
• OE numbers referenced: 748-468, 748468, 51357140589, 67626927025 for cross-checking compatibility.

How easy is installation and what should I expect?

The part is built to match original equipment fit, so installation follows the factory mounting layout and electrical plug. A competent DIYer with standard door-panel tools can complete the swap, or a technician can install it quickly.

• Direct replacement — uses original mounting points for straightforward alignment.
• Comes with the motor preassembled to eliminate separate wiring or mounting steps.
• Expect smoother, quieter up/down travel when correctly installed and adjusted.

What features and specifications matter when choosing this regulator?

Choose a regulator that matches the vehicle side, motor plug configuration, and OE reference numbers. The NPAUTO assembly is specified for the rear left (driver side) and uses a 5-pin motor connector as required by listed BMW models.

• Position: rear left (driver side) with motor included.
• Motor connector: 5-pin configuration compatible with listed factory wiring.
• Built to OE standards for fit, durability, and noise reduction.

Will replacing the regulator solve common rear window issues?

Yes — replacing a worn regulator and motor assembly typically resolves issues such as slow movement, grinding noises, or complete non-operation caused by broken cables, failed gears, or seized mechanisms. If electrical faults persist, check wiring and switch operation too.

• Fixes mechanical failures like broken slides or worn gears that impede window travel.
• Replaces a failing motor that no longer provides consistent torque.
• Restores quiet, even movement when the regulator is properly mounted and tested.

Who this is for: This NPAUTO rear left power window regulator is aimed at BMW 3 Series owners, DIY mechanics, and independent repair shops seeking an affordable, OE-compatible replacement for 2006–2011 E90/E91 models. Choose this unit if you need a direct-fit assembly with the motor included, want to avoid modifying factory wiring, and expect reliable window operation after installation.