Mercedes R171 C197 Electric Front Seat Adjustment Regulator Motor A1718201742

The Mercedes electric front seat adjustment motor is a precise component of the seat control system, used in R171 and C197 models. Thanks to its factory design intended for front installation, it ensures smooth, repeatable seat adjustment and maintains the ergonomics designed by the manufacturer. This solution is dedicated to users who want to restore full functionality to electric seat adjustment while preserving the original Mercedes specification.

Specifications and technical data

• SKU: A1718201742
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1718201742
• Substitutable numbers: A1718201742, A 171 820 17 42
• Location on the vehicle: Front
• Category: Additional Seat Parts

Application and Function in the Seat System

The presented adjustment motor operates in the front area of the vehicle, responsible for electrically moving the driver's or passenger's seat, depending on the car's configuration. As a component from the Other Seat Parts group, it works with the runner mechanism, gears, and seat controller, enabling:

• precise adjustment of the seat position to the driver's height and preferences,
• stable operation throughout the full range of seat movement,
• comfort during longer journeys thanks to repeatable settings.

A properly selected adjustment motor is crucial for the correct operation of the entire electric seat adjustment system, reduces the risk of mechanism jamming, and supports safe positioning behind the wheel.

Original Origin and Compatibility

The front seat adjustment motor comes from the Mercedes offering, which means adherence to factory manufacturing standards and compatibility with seat designs used in R171 and C197 models. The OEM designation and available replacement numbers allow for technical verification of compatibility with a specific vehicle instance, as well as easy comparison with parts already installed in the car.

Thanks to this solution, the adjustment system's efficiency can be restored in a controlled manner without the need for aftermarket parts with uncertain parameters, which is particularly important in premium cars where the cohesive operation of all interior components matters.

Condition, Verification, and Benefits of Installation

The offered seat adjustment motor is a used component, which in practice means a favorable combination of price and preserved original construction. Such components sourced from vehicle dismantling are often chosen by workshops and individual users because they allow for economical repairs without compromising factory quality.

The main benefits of using an original, used adjustment motor include:

• maintaining compatibility with the electrical system and seat control,
• no need for mechanical modifications to runners and mountings,
• consistent operation with other elements of the seat system.

Practical Installation and Operational Tips

When replacing the seat adjustment motor, it is recommended that the installation be carried out by a workshop experienced with electric seat adjustment systems in Mercedes vehicles. Correct electrical connection, runner mechanism inspection, and full range of motion testing after installation help minimize the risk of repeat failure and ensure stable long-term operation.

If you are planning a comprehensive repair or upgrade of the seating area in your Mercedes and need other parts from the same group, such as runners, adjustment mechanisms, or additional control modules, check the available parts in the Other Mercedes Seat Parts category.

Technical Support and Selection of Used Parts

When selecting used interior components, such as seat adjustment motors, it is advisable to leverage knowledge about the quality of dismantled parts and methods of their verification. Materials describing how to assess the condition of parts from vehicle disassembly and when their use is most cost-effective can be helpful. More on making informed choices about used body and equipment components can be found in the article Replacing Body Panels with Used Ones – Can Dismantled Sheet Metal Parts Look Like New?, which also addresses the quality of original parts used in popular brands, including Mercedes.