BMW F12 F33 F33 LCI F83 Longitudional Seat Adjustment Motor Left N/S P1-13171-02

BMW F12 F33 F33 LCI F83 Longitudional Seat Adjustment Motor Left N/S is an original seat adjustment system component, designed for precise front-to-rear seat movement on the driver's side. Thanks to the factory BMW design and perfect fitment to the seat rails, the motor ensures stable mechanism operation, repeatable seat positioning, and comfortable ergonomics in daily use. This solution is particularly useful when repairing the adjustment system or restoring full seat functionality in F-series models.

Specifications and technical data

• SKU: 7309647
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7309647
• Substitutable numbers: 7309647, 52107309647, 0390204077, P1-13171-02, P11317102
• Location on the vehicle: Left
• Category: Additional Seat Parts

Purpose and function in the vehicle

The longitudinal adjustment motor drives the seat sliding mechanism along the mounting rails. In this variant, it is dedicated for use on the left side of the vehicle, i.e., the driver's seat in a standard European configuration. The component works with the gearbox and seat rails, allowing for smooth adjustment of the distance from the steering wheel and pedals, which directly impacts safety and driving comfort.

The product belongs to the Other seat parts category, meaning it is a specialized component complementing the complete seat adjustment system, rather than a standalone seat or upholstery. It is suitable for both typical repairs after a drive failure and for replacing worn-out elements in heavily used vehicles.

Compatibility with BMW F-series models

The motor has been designed for BMW F12, F33, F33 LCI, and F83 platforms, ensuring proper fitment to the seat structures used in these generations. This means compatibility with factory mounting points, rail geometry, and the adjustment control system. As a result, installation can be carried out in an orderly manner, without the need for modifying the seat structure or interfering with the bodywork.

Its original BMW origin helps maintain the consistency of the entire seat system – from mechanics and electrical installation to control logic. This is particularly important in cars equipped with extensive seat position settings, where precise cooperation of all components is crucial for reliability.

Technical specifications and installation

The longitudinal seat adjustment motor operates within the vehicle's electrical system, transferring torque to the seat sliding mechanism. The design intended for left-side installation facilitates proper routing of the electrical harness and correct alignment with the rails. This allows for smooth seat movement without jamming or excessive play.

During installation, it is recommended to pay attention to:

• proper seating of the motor in the seat brackets,
• precise connection to the rail gear mechanism,
• secure fastening of electrical connectors to ensure stable power supply and control,
• checking the seat range of motion after installation, at full extreme extension and retraction.

By maintaining factory geometry, this component allows for restoring the original functionality of longitudinal adjustment without the need for adaptations or modifications.

Use in repairs and retrofits

The left-side longitudinal seat adjustment motor is particularly useful in situations where the existing drive has been damaged, shows irregular operation, or has completely stopped responding to controls. Replacing it with a functional unit allows for restoring full driver position adjustment, which is important for both comfort and a correct driving position.

It can also be used in seat retrofitting projects for vehicles that originally had simplified adjustment. Combined with appropriate rails and controls, it enables the construction of a more advanced seat positioning system, consistent with solutions used in higher equipment versions.

If you want to better plan such modifications and utilize the potential of dismantled parts, it is worth checking out the retrofitting guide – you will find practical tips in the article Retrofitting in VAG and BMW group cars – how to affordably upgrade your car with used parts.

Support in selecting components for BMW seat systems

When comprehensively servicing the seat system – including adjustment drives, rails, structural elements, and additional mechanisms – it is important to use components specifically intended for this group of solutions. If you are planning a comprehensive repair or upgrade of the seat area in your BMW and need other elements from the same group, such as adjustment mechanisms, seat rails, or additional modules related to seat positioning, check out the available parts in the Other BMW seat parts category.