Mercedes C140 Seat Adjustment Switch Front Left N/S Memory Button A1408200510

Mercedes C140 Seat Adjustment Switch Front Left N/S Memory Button is a specialized control component designed for operating the driver's seat settings in luxury Mercedes models. It allows for precise control of the seat position and the use of the memory function, which enhances daily comfort. Thanks to its factory design, the switch is fully compatible with the vehicle's original electrical system and maintains the interior's ergonomics.

Specifications and technical data

• SKU: A1408200510
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1408200510
• Substitutable numbers: A1408200510, A 140 820 05 10
• Location on the vehicle: Front, Left
• Category: Switches & Controls

Purpose and function in the vehicle

The described switch is the component responsible for adjusting the driver's seat in the front of the cabin. Its placement in the left seat area ensures intuitive access to all adjustment directions, while the integrated memory function allows for quick recall of saved seat positions. This solution is particularly useful in vehicles used by multiple drivers, where setting repeatability and ease of operation are essential.

As part of the Switches, control elements and ignition locks group, the component works with the vehicle's electrical system, transmitting signals to the modules responsible for the seat adjustment motors. A properly functioning switch improves the ergonomics of the driving position, thereby enhancing safety and driving comfort.

Construction, ergonomics and interior integration

The switch construction is designed for convenient one-handed operation, with clearly tactile operating points for each adjustment direction. The layout of the buttons and manipulators is matched to the shape of the side of the seat, which facilitates operation without taking your eyes off the road. The mechanical and electrical solutions used are in accordance with Mercedes standards, which promotes durability and stability of operation over a long period of use.

The switch works with the seat memory system, allowing for the saving and restoring of selected positions. This allows the driver to quickly return to their preferred seat configuration after a change of vehicle user or after service, without the need for manual adjustment of all parameters each time.

Scope of application and installation

The element is intended for installation in the front left part of the cabin, in the driver's seat area. As an original seat control switch, it is designed to work with factory adjustment motors and the electrical system of the given model. In practice, this means it can be installed in place of a worn or damaged part, while maintaining the vehicle's original functionality.

When selecting parts, it is crucial to verify compatibility using the OEM number and interchangeable numbers, which helps avoid compatibility issues. A properly matched switch facilitates service and shortens repair time, while minimizing the risk of errors in the seat adjustment system's operation.

Condition, benefits of choosing a used part and part selection

The offered switch comes from the used parts segment, which allows for an economical restoration of full seat adjustment functionality while maintaining the manufacturer's original specifications. For many Mercedes users, this is a reasonable compromise between cost and compatibility with the vehicle's installation, especially in the case of older model generations.

If you want to consciously compare the cost-effectiveness of purchasing original, replacement, and used parts in the broader context of car maintenance, our blog guide will be helpful: original, replacement or used car parts. You will find practical tips there regarding the selection of components by OEM numbers and quality criteria.

Related Mercedes control elements

If you are planning a comprehensive repair or modernization of the interior control area in your Mercedes and need other elements from the same group, such as window switches, mirror control elements, or additional button modules, check out the available parts in the Switches, control elements and ignition locks Mercedes category.

When working on vehicle safety, it is also worth paying attention to the condition of the braking system – when selecting used components, the following article will be helpful: how to safely select used braking system components, which contains a practical checklist useful when shopping in specialized automotive stores.