Continental AC10021 Door Lock Actuator - Front Left or Front Right

OE-Style Door Lock Actuator for BMW

The Continental AC10021 door lock actuator is an OE validated replacement built to match original equipment fit, form, and function. It is designed for BMW front door applications where the locking mechanism needs reliable, direct replacement performance.

• OE validated actuator with original-equipment-style fit and operation
• 12-volt design for standard automotive electrical systems
• Plastic housing with snap-in mounting method
• Male connector with 1 connector and 6 male bullet terminals
• Direct replacement for front left and front right door lock applications
• Built for long service life and simplified installation

Detailed Product Overview

Continental AC10021 is a door lock actuator engineered for broad application coverage across Asian, domestic, and European vehicles. For BMW models such as the Z3, 318i, 325i, and M3, this actuator restores the door locking mechanism with the same type of installation and operating characteristics expected from the original part. The AC10021 part number is also referenced in OE-style replacement catalogs for related BMW applications.

This part cross-references Dorman - OE Solutions 746-509 for the same application.

What This Part Helps Fix

• Door locks that do not respond consistently to the key fob or switch
• Locks that move slowly, stick, or fail to engage
• Intermittent central locking operation on BMW front doors
• Mechanical wear inside the original door latch actuator assembly
• Loss of normal locking and unlocking function on the front left or front right door

Installation Notes and Fitment

Compatible With BMW applications listed below. Verify connector style, terminal layout, and mounting method before installation. The snap-in design and 12-volt electrical setup support direct replacement on the original door lock actuator location.

• Fits 1996-2002 BMW Z3, front left
• Fits 1996-2002 BMW Z3, front right
• Fits 1992-1999 BMW 318is, front left
• Fits 1992-1999 BMW 318is, front right
• Fits 1995-1999 BMW 318ti, front left
• Fits 1995-1999 BMW 318ti, front right
• Fits 1998-1999 BMW 323i, front left
• Fits 1998-1999 BMW 323i, front right
• Fits 1998-1999 BMW 323is, front left
• Fits 1998-1999 BMW 323is, front right
• Fits 1996-1999 BMW 328i, front left
• Fits 1996-1999 BMW 328i, front right
• Fits 1996-1999 BMW 328is, front left
• Fits 1996-1999 BMW 328is, front right
• Fits 1994-1999 BMW M3, front left
• Fits 1994-1999 BMW M3, front right
• Fits 1992-1998 BMW 318i, front left
• Fits 1992-1998 BMW 318i, front right
• Fits 1992-1995 BMW 320i, front left
• Fits 1992-1995 BMW 320i, front right
• Fits 1992-1995 BMW 325i, front left
• Fits 1992-1995 BMW 325i, front right
• Fits 1992-1995 BMW 325is, front left
• Fits 1992-1995 BMW 325is, front right
• Fits 1992-1995 BMW 525i, front left
• Fits 1992-1995 BMW 525i, front right
• Fits 1994-1995 BMW 530i, front left
• Fits 1994-1995 BMW 530i, front right
• Fits 1994-1995 BMW 540i, front left
• Fits 1994-1995 BMW 540i, front right
• Fits 1992-1993 BMW 535i, front left
• Fits 1992-1993 BMW 535i, front right
• Fits 1992-1993 BMW M5, front left
• Fits 1992-1993 BMW M5, front right

Quality Assurance

Continental OE validated actuators are built to match original equipment specifications for fit, form, and function. The AC10021 is designed to deliver consistent locking performance and straightforward installation on supported BMW front door applications.