Marelli AC819 Window Regulator - Rear Left

Marelli AC819 Rear Left Window Regulator

The Marelli AC819 is a rear left window regulator for select Audi applications. It is a direct-fit body component for restoring rear window movement on covered vehicles, including Audi A4, A4 Quattro, S4, and allroad models.

Key Features

• Rear left window regulator for body door repair
• Fits 2013-2016 Audi allroad, rear left, w/o Motor
• Fits 2009-2015 Audi A4, rear left, w/o Motor
• Fits 2009-2015 Audi A4 Quattro, rear left, w/o Motor
• Fits 2010-2015 Audi S4, rear left, w/o Motor
• Marelli part number AC819 for accurate ordering and fitment matching

Detailed Description

Marelli AC819 is a rear left window regulator built for specific Audi door applications where the window mechanism needs replacement without the motor. This part is listed for 2013-2016 Audi allroad, 2009-2015 Audi A4, 2009-2015 Audi A4 Quattro, and 2010-2015 Audi S4 models in the rear left position. If you are searching for an Audi A4 rear left window regulator or an Audi S4 rear left window regulator, AC819 matches the covered fitment exactly.

This part cross-references no additional part numbers in the provided data.

What It Helps Fix

• Window glass that will not raise or lower properly
• Grinding or binding during window operation
• Loose or uneven window movement in the rear left door
• Failed regulator mechanism inside the door panel
• Restoration of normal rear window function after mechanical wear

Installation Notes and Tips

Verify the rear left door application and confirm the vehicle is equipped for a regulator without motor before ordering. Compare the original part shape, mounting points, and connector layout to the removed component. Professional installation is recommended for door-panel removal, regulator alignment, and proper window tracking.

Quality Assurance

Marelli is an established OE supplier in automotive systems, and AC819 is cataloged for the specified Audi fitments to support accurate replacement selection.