Mercedes Benz A-Class W169 Front Left N/S Seat Frame Backrest Mechanism

Mercedes Benz A-Class W169 Front Left N/S Seat Frame Backrest Mechanism is an original backrest mechanism designed for installation on the driver's or front passenger's side, depending on the vehicle version. The component belongs to the Seats and benches group and provides a solid structural base for the upholstery and seat equipment, ensuring proper geometry, stability, and safe back support.

Specifications and technical data

• SKU: A1699104936
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: A1699104936
• Substitutable numbers: A1699104936, A 169 910 49 36, A1699102534, A 169 910 25 34
• Location on the vehicle: Front, Left
• Category: Seats and Sofas

Purpose and function of the backrest mechanism

The presented Mercedes Benz A-Class W169 Front Left N/S Seat Frame Backrest Mechanism is a load-bearing structure that transfers loads from the driver's or passenger's back to the seat mounts in the floor. It is responsible for the correct positioning of the backrest relative to the seat cushion, interaction with adjustment mechanisms, and maintaining the proper rigidity of the entire seat.

The placement in the vehicle is on the front left side, which is crucial when selecting parts for a specific interior configuration. Thanks to this, the mechanism maintains the correct geometry relative to the steering wheel, pedals, and center console, which translates into ergonomics and driving comfort.

Construction and compatibility

The backrest frame is a metal structure prepared to work with factory rails, foam cushions, and seat upholstery. It was designed as an OEM component, which means it fits factory mounting points in the bodywork as well as original seat adjustment mechanisms.

Thanks to the use of appropriately selected cross-sections and reinforcements, the structure provides stable back support and resistance to typical operational loads. This solution allows for restoring the proper operation of the seat in a situation where the original frame has suffered mechanical damage, deformation, or corrosion.

Use in repairs and interior tuning

The front left seat backrest mechanism will work well both for standard post-accident repairs and for interior upgrades when it is necessary to replace a damaged seat structure. It allows for the reuse of existing upholstery, foam, and seat equipment, which is cost-effective and helps maintain the stylistic consistency of the cabin.

In combination with appropriately selected upholstery and seat foam, the frame allows you to build a comfortable, functional seat that maintains the correct body position while driving. This is especially important on longer routes, where stable back support helps reduce driver fatigue.

If you want to plan a more extensive cabin upgrade using used seats and equipment components, it is worth checking out the tips in the article Car interior tuning with Global Parts, which describes a practical approach to improving interior ergonomics and appearance using second-hand parts.

Condition, origin, and benefits of choosing a used part

The offered backrest frame comes from dismantling and is a used component, which allows you to combine an attractive cost with maintaining the original structural specification. Choosing such a solution is particularly beneficial when you want to maintain the factory seat geometry and compatibility with existing interior elements.

Thanks to the use of an original structure, you can avoid fitting problems typical of replacements with imprecise dimensions. This translates into easier assembly, proper alignment with the rails and center console, and stable upholstery mounting.

Expanding the seating area in BMW – Seats and benches category

If you are planning a comprehensive repair or upgrade of the seating area in your BMW and need other elements from the same group, such as frames, seat cushions, or complete seat modules, check the available parts in the BMW Seats and benches category.

For those interested in a broader context of modifications for this brand's models, including the differences between standard and sports equipment versions, the material describing the characteristics of M and M Performance series components may also be helpful: BMW M Performance: how do BMW M components differ from standard ones?.