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ACI 84804 Window Regulator - Rear Left
| Brand | ACI BP1100MS |
|---|---|
| Abutment Clips Included | No |
| Backing Material | Iron |
| Chamfered Edges | Yes |
| Friction Material Attachment | Bonded |
| Friction Material Composition | Semi-metallic |
| Grade Type | Regular |
| Inner Pad Friction Material Thickness | 0.43 |
| Inner Pad Friction Material Thickness | 10.8 |
| Inner Pad Height | 1.51 |
| Inner Pad Height | 38.4 |
| Inner Pad Overall Thickness | 0.63 |
| Inner Pad Overall Thickness | 15.9 |
| Inner Pad Plate Thickness | 0.2 |
| Inner Pad Plate Thickness | 5.1 |
| Inner Pad Width | 4.36 |
| Inner Pad Width | 110.7 |
| Mounting Hardware Included | No |
| Outer Pad Friction Material Thickness | 0.43 |
| Outer Pad Friction Material Thickness | 10.8 |
| Outer Pad Height | 1.51 |
| Outer Pad Height | 38.4 |
| Outer Pad Overall Thickness | 0.63 |
| Outer Pad Overall Thickness | 15.9 |
| Outer Pad Plate Thickness | 0.2 |
| Outer Pad Plate Thickness | 5.1 |
| Outer Pad Width | 4.36 |
| Outer Pad Width | 110.7 |
| Pad Shims Included | Yes |
| Pad Wear Sensor Included | Yes |
| Pad Wear Sensor Type | Mechanical |
| Slotted | Yes |
| Product line | Window Regulator |
| Fits | —35 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable fit and function.
Power window regulator. New replacement part for smooth window operation.
Motor not included for a straightforward regulator-only replacement.
Cross-references ACI 84804, Continental WR40076 and Genuine 51357184745 for the same application. See all 9.
Rear Left Power Window Regulator for BMW
Restore smooth rear window movement with this ACI power window regulator, part number 84804. It is a new rear left window regulator that meets or exceeds OEM requirements and is built for direct replacement service on select BMW 5 Series applications.
Compatible with BMW 528i, 535i, 550i, M5, and related xDrive and GT models, this ACI Window Regulator is a fitment-focused solution for drivers needing reliable rear left window operation. The 84804 part number is also referenced in aftermarket and OE cross-reference listings for the same application.
Key Features
- Rear left power window regulator
- New construction for replacement service
- Meets or exceeds OEM specifications
- Motor not included
- Mounting hardware not included
- Direct-fit body and door application
- ACI Window Regulator line
Product Details
The ACI 84804 is a power window regulator for the rear left door position. It is intended for BMW vehicles that use a power-operated rear window system and is listed for proper fit and function across multiple 2004-2010 BMW 5 Series variants. This part cross-references Continental WR40076 for the same application.
Fits 2008-2010 BMW 528i, rear left. Fits 2009-2010 BMW 528i xDrive, rear left. Fits 2008-2010 BMW 535i, rear left. Fits 2010 BMW 535i GT, rear left. Fits 2009-2010 BMW 535i xDrive, rear left. Fits 2006-2010 BMW 550i, rear left. Fits 2010 BMW 550i GT, rear left. Fits 2010 BMW 550i GT xDrive, rear left. Fits 2006-2010 BMW M5, rear left. Fits 2008 BMW 528xi, rear left. Fits 2008 BMW 535xi, rear left. Fits 2004-2007 BMW 525i, rear left. Fits 2004-2007 BMW 530i, rear left. Fits 2004-2005 BMW 545i, rear left.
Common Repair Uses
- Window glass that will not raise or lower properly
- Slow, uneven, or intermittent rear window movement
- Broken regulator cables or worn lift mechanism
- Rear left window stuck in the open or closed position
- Noisy operation from a failing power window assembly
Installation Notes and Tips
Confirm rear left door fitment by year, model, and trim before installation. This regulator does not include the motor, so reuse or replace the motor as needed based on the vehicle’s condition. Mounting hardware is not included, and the door panel, vapor barrier, and glass alignment should be inspected during service to ensure proper operation after installation.
Quality Assurance
ACI lists this window regulator as a new part that meets or exceeds OEM specifications for the stated applications. The 84804 part number is built for direct replacement use in BMW rear left power window repairs.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | BMW | 528i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2010 | BMW | 528i xDrive | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2010 | BMW | 535i | 3.0L | L6 | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2010 | BMW | 535i GT | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2010 | BMW | 535i xDrive | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2010 | BMW | 550i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2010 | BMW | 550i GT | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2010 | BMW | 550i GT xDrive | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2010 | BMW | M5 | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2009 | BMW | 528i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2009 | BMW | 528i xDrive | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2009 | BMW | 535i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2009 | BMW | 535i xDrive | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2009 | BMW | 550i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2009 | BMW | M5 | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2008 | BMW | 528i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2008 | BMW | 528xi | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2008 | BMW | 535i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2008 | BMW | 535xi | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2008 | BMW | 550i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2008 | BMW | M5 | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2007 | BMW | 525i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2007 | BMW | 530i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2007 | BMW | 550i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2007 | BMW | M5 | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2006 | BMW | 525i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2006 | BMW | 530i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2006 | BMW | 550i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2006 | BMW | M5 | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2005 | BMW | 525i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2005 | BMW | 530i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2005 | BMW | 545i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2004 | BMW | 525i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2004 | BMW | 530i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
| 2004 | BMW | 545i | — | — | Rear Left | Window regulator suitable for vehicle's proper fit and function.; Window Regulator |
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