A-Premium Power Window Regulator Rear Driver Side for BMW E90/E91 (2007+, OE-Style Fit, No Motor)

A-Premium’s rear driver-side power window regulator replaces the OEM mechanism for BMW E90/E91 sedans and wagons, restoring smooth, reliable window movement without including the motor.

If your BMW’s left rear window sticks, falls, or makes noise when moving, swapping in a high-quality regulator can resolve the issue without the cost of a full assembly. This A-Premium unit is designed as a direct OE-style replacement for 2007 and later E90/E91 models, fitting sedans and station wagons. It arrives ready to bolt in place where the factory part does, using the same mounting points and reference numbers to simplify installation and parts matching.

Which BMW models and body styles does this part fit?

This regulator is compatible with a range of E90 and E91 vehicles and connects to the existing motor and harness. It fits rear left (driver side) positions only and is intended for sedan or wagon variants rather than coupes or convertibles.

• Fits BMW E90 and E91 platforms from 2007 onward
• Compatible with 323i, 325i, 325xi, 328i, 328i xDrive, 330i, 330xi, 335i, 335xi, and M3 models
• Rear left (driver-side) location only
• Works with existing window motor (sold separately)

How does this regulator compare to the original equipment?

The A-Premium regulator is an OE-style replacement built to match factory dimensions and mounting points so it installs with minimal modification. It replaces worn or broken regulators while maintaining the same window travel path and attachment points as the OEM component.

• Made to OE fit and form for straightforward installation
• Reference cross-numbers: 51357140589, BM1550111, 749-468, WR49468
• Durable materials intended to resist common wear modes
• No motor included — mates to your existing motor assembly

What should I expect during installation and maintenance?

Installation is typically a direct swap using the factory fasteners and window clips; door panel removal and basic hand tools are all that’s required. Because the regulator is a mechanical assembly, check the window tracks, clips, and motor condition before installing to avoid repeating work.

• Requires door panel removal and basic tools for fitment
• Inspect window glass, guides, and motor for damage before installing
• Follow factory torque specs for mounting bolts to ensure correct alignment
• Lubricate slider points and rails for smoother, longer operation

What parts or accessories might I need alongside this regulator?

Because this listing does not include the motor, confirm whether your original motor is reusable. You may also need replacement fasteners or window clips if the originals are corroded or broken, and a bit of grease to lubricate moving surfaces during installation.

• Use existing motor or purchase a compatible replacement motor separately
• Replace worn window clips or retainers as needed
• Use dielectric or silicone grease on sliding surfaces
• Have replacement door-panel clips on hand in case some break during removal

This A-Premium rear left window regulator suits BMW owners, independent mechanics, and restoration shops seeking a reliable OE-style replacement without the motor. It’s an economical option when the regulator assembly has failed but the motor still functions or when a cost-effective mechanical fix is preferred. If you drive a 2007-on E90 or E91 sedan or station wagon and need to restore proper rear-left window operation, this regulator is tailored for that repair while matching OEM fitment and reference numbers for easy part confirmation.