BMW 7 Series E65 E66 Rear Left Door Basic System Latch Lock N/S 7012145

BMW 7 Series E65 E66 Rear Left Door Basic System Latch Lock is an original component from the Locks and Latches group, designed for the factory locking system in luxury BMW 7 Series E65/E66 generation sedans. It ensures proper integration with the basic door lock system, guaranteeing secure locking and correct operation of the rear left door.

Specifications and technical data

• SKU: rhd-7012145
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 51227012145
• Substitutable numbers: 51227012145, 7012145
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The presented lock is dedicated for installation in the rear left door of the BMW 7 Series E65/E66, in the version with the basic locking system. It is responsible for the mechanical latching of the door, interaction with the interior and exterior handles, and transmitting movement from the rods and control mechanisms.

The placement on the rear left side of the vehicle allows for precise fitting to the factory door structure, without the need for modifications or adaptations of other elements. This ensures consistent operation of the entire locking system in the vehicle.

Construction and technical fitment

The lock has been designed as an OEM component for BMW, which means full compatibility with the factory door geometry, mounting points, and the operating range of the mechanism. The design is intended for use with the basic lock system, without additional functions beyond those provided in the standard door configuration.

Precise fitment with the door panel, guides, and rods results in:

• stable latching of the door every time it is closed,
• proper response to the movement of handles and control mechanisms,
• maintenance of factory comfort when operating the rear left passenger door.

Benefits of using an original lock

Using an original BMW 7 Series E65/E66 rear left door lock allows you to maintain the consistency of the entire locking system. Components from this group are designed for long-term operation, and their construction takes into account the specifics of the heavy, well-equipped doors of a luxury limousine.

The main advantages include:

• factory fitment to the door and body structure,
• preservation of the original operating characteristics of the handles and latch,
• reduction of the risk of play, rattling, and improper closing,
• consistency with the existing vehicle lock control system.

Condition and service application

The offered lock comes from a vehicle and is a used component, making it an attractive solution for service repairs where the priority is combining original quality with reasonable costs. This type of component is particularly useful when replacing a damaged mechanism that causes problems with closing, locking, or opening the rear left door.

It is always worth verifying the selection of the correct lock for a specific version of the BMW 7 Series E65/E66 based on vehicle data to ensure full compatibility with the equipment and door configuration.

Expanding repairs within the BMW locking system

If you are planning a comprehensive repair or upgrade of the door locking area in your BMW and need other elements from the same group, such as latching mechanisms, cylinders, or actuators, check the available parts in the BMW Locks and Latches category.

Technical support and vehicle system diagnostics

During service work on body and locking systems, it is worth simultaneously checking the condition of other vehicle systems, including the powertrain. For diesel-powered cars, information regarding the symptoms and consequences of improper fuel injection system operation may be helpful – these are discussed in detail in the article Diesel injector faults – how to recognize them and the risks of neglecting them, which can provide practical knowledge when planning broader service work.