BMW X3 G01 X4 G02 G21 Rear Seat Fold Backrest Adjustment Lock Left N/S 7394889

The BMW X3 G01 X4 G02 G21 Rear Seat Backrest Lock Left Rear is an original seat locking system component, designed for installation on the left side of the rear seat. Thanks to its factory BMW design, it ensures secure backrest locking, seat stabilization, and safe maintenance of the seat's position while driving.

Specifications and technical data

• SKU: 7394889
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7394889
• Substitutable numbers: 7394889, 52207394889
• Location on the vehicle: Rear, Left
• Part type: Seat Adjusting Track
• Category: Additional Seat Parts

Purpose and Function of the Backrest Lock

The presented rear seat backrest lock has been specifically designed for BMW X3 G01, X4 G02, and G21 models, taking into account the structural requirements of the rear body. This component is responsible for:

• mechanically locking the left side of the rear seat backrest,
• maintaining a stable backrest position during acceleration, braking, and driving over uneven surfaces,
• cooperating with the backrest folding mechanism to increase luggage space.

Due to its precise fit for the specific body generation, the lock works with factory guides, linkages, and latches, which translates to proper operation of the entire rear seat system.

Construction and Fit for BMW

The rear seat backrest lock, left rear, is a part from the Other Seat Parts group, but it performs a precisely defined function within the rear seat structure. The construction was developed by BMW with the following in mind:

• precise fitting with the backrest frame and the rear left body,
• compatibility with factory mountings and screw points,
• maintaining the correct locking geometry, eliminating play and unwanted noises.

Its original BMW OE origin means the lock complies with factory quality and safety standards, and its installation does not require structural modifications.

Benefits of Using an Original Lock

Replacing a faulty or damaged backrest lock with an original BMW part offers tangible operational benefits:

• Restoring full rear seat functionality – correct locking and unlocking of the left backrest.
• Reducing rattles and play coming from the rear interior, resulting from a poorly closing backrest.
• Maintaining the factory level of safety for passengers and luggage.
• Consistency with other seat system components, without the risk of fitting issues.

A part from this group is particularly important in cars where the rear seat is frequently folded, and the locking mechanism operates under variable load.

Vehicle Placement and Installation Tips

The lock is designed for installation in the rear seat area, on the left side. Proper placement on the vehicle facilitates part identification during interior inspection and upholstery removal. When selecting and installing, pay attention to:

• compatibility with the body generation (X3 G01, X4 G02, G21),
• correct routing of control linkages and cables,
• checking the mechanism's operation after locking and unlocking the backrest.

Due to the specific mounting, it is recommended to install according to BMW service procedures, which helps maintain the stability and reliability of the backrest mechanism.

Part Condition and Practical Application

The offered rear seat backrest lock, left rear, is a used part, sourced from disassembly, allowing for economical repair while maintaining the original BMW construction. This solution is particularly beneficial for:

• post-accident repairs of the rear interior,
• damage to the locking mechanism resulting from use,
• the need for a quick replacement of the part without altering the seat structure.

Using an original lock from this group helps maintain the vehicle's technical consistency and avoid problems typical of aftermarket replacements with uncertain fit.

If you are planning a comprehensive repair or upgrade of the rear seat area in your BMW and need other parts from the same group, such as adjustment mechanisms, backrest guides, or additional mountings, check the available parts in the BMW Other Seat Parts category.

For BMW owners also interested in improving visibility and driving safety, a practical guide on lighting will be useful – detailed information can be found in the article See More and Better – A Complete Guide to Selecting and Replacing Used LED and Xenon Headlights.