Seat Altea XL Rear Left N/S Door Lock Latch Mechanism Actuator 5P0839011B

The Left Rear Door Lock for Seat Altea XL is an original latch mechanism with an actuator, designed for installation in the rear left door of the body. This component, from the Doors and Door Panels category, is responsible for secure locking, unlocking, and proper cooperation with the central locking system and door handles. Thanks to its factory design for the Seat brand, it ensures a precise fit to the door structure and the vehicle's electrical system.

Specifications and technical data

• SKU: 5P0839011B
• Mark: Seat
• Condition: Used
• OEM Part Number: 5P0839011B
• Substitutable numbers: 5P0839011B, 5P0 839 011 B
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Vehicle Application and Placement

The presented lock is dedicated for installation in the rear left door of the car, which is crucial for the correct operation of the entire locking system on this side of the body. Its placement in the rear cabin area requires precise alignment with the lock guide, the striker on the pillar, and the rods for the interior and exterior handles. Using the correct mechanism at this point eliminates issues with doors not closing properly, accidental opening, or incorrect response from the central locking system.

Lock Mechanism Construction and Function

The mechanism combines in one housing the mechanical part responsible for latching the door and the actuator controlling the lock's operation via the vehicle's electrical system. The internal pawl system works with the striker on the pillar, ensuring the door leaf is held securely in the closed position, while the integrated electric drive transmits signals from the comfort module for locking and unlocking. This allows the lock to work with both the key and the central locking buttons inside the cabin.

Benefits of Using an Original Door Lock

Using an original door lock for the Seat Altea XL allows for the preservation of the door's factory operating characteristics and correct communication with the vehicle's electronics. The most important benefits include:

• secure door locking when closing, without the need for excessive force on the door leaf,
• proper cooperation with the central locking system and the car's electrical system,
• consistency with the vehicle's factory security features,
• precise fit to the door and body pillar structure.

This ensures the driver maintains full functionality of the rear left door area, and passengers are provided with comfort when entering and exiting, as well as a secure door closure while driving.

Item Condition and Service Application

The offered lock is a used original part, which translates to a favorable combination of factory fit and an attractive price compared to new components. This type of part is particularly useful for routine repairs when the existing lock shows signs of wear, such as locking problems, no response to the central locking signal, or irregular actuator operation. Replacing the complete mechanism often restores door functionality faster and more effectively than temporary repairs of individual components.

Expanding Door Repair Scope

If you are planning a comprehensive repair or upgrade of the door area in your Seat and need other parts from the same group, such as panels, reinforcements, or additional structural elements, check the available parts in the Seat Doors and Door Panels category.

For users who are simultaneously servicing the vehicle's comfort systems – including heating and air conditioning – a guide on selecting and operating components may be helpful. Practical tips, comparison tables, and service procedures can be found in the article Air Conditioning and Heating – Part Selection and Maintenance for Year-Round Comfort.