Mercedes W177 Seat Backrest Adjustment Front N/O/S Hand Wheel A1779190000

Mercedes W177 Seat Backrest Recline Knob Front is an original adjustment element designed for the front seats in W177 series models. Thanks to its precise manufacturing and compatibility with the factory backrest mechanism, it ensures comfortable, smooth adjustment and maintains the consistent interior appearance characteristic of the Mercedes brand.

Specifications and technical data

• SKU: A1779190000
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779190000
• Substitutable numbers: A1779190000, A 177 919 00 00
• Location on the vehicle: Front
• Category: Additional Seat Parts

Knob Purpose and Function

The front seat backrest recline knob is responsible for the ergonomic adjustment of the backrest angle in the front seat. The element works with the factory adjustment mechanism, enabling:

• precise setting of the backrest position according to individual driver or passenger preferences,
• maintaining comfort during longer journeys,
• consistent operation with the existing seat adjustment system.

Thanks to its design, which is consistent with solutions used in the W177 series, the knob allows for the maintenance of the functionality of the factory seat adjustment system without the need for modifications to other seat components.

Construction and Fit for Mercedes W177

The presented knob has been specifically designed for the front seats in the W177 body style, which translates to proper fitting with the side part of the backrest and aesthetic integration into the upholstery line. The element's construction ensures:

• stable seating on the adjustment mechanism's axis,
• a secure grip when changing the backrest recline,
• preservation of the original Mercedes interior styling.

As a part from the Other Seat Parts category, the knob is a practical addition to the seat adjustment system, especially when replacing a damaged or worn-out component.

Vehicle Placement and Installation

The element is intended for installation on the front seat, in place of the factory backrest recline adjustment knob. Thanks to the preservation of the original mounting geometry, it is possible to:

• directly replace a missing or damaged knob,
• maintain full backrest adjustment functionality,
• minimize installation work, without interfering with the seat's structure.

This solution is particularly beneficial for interior repairs after use or minor mechanical damage, when quick restoration of user comfort is desired.

Characteristics of a Used Part

The offered knob comes from the secondary market, allowing for economical repair of the seat adjustment system while maintaining the original origin of the part. A used element of this type is a good solution when the priority is:

• preserving the factory appearance and ergonomics of the interior,
• reducing costs compared to new components,
• fitting existing seat mechanisms without additional modifications.

Thanks to this, the knob will be suitable for both standard replacement and gradual restoration of cabin equipment in Mercedes W177 vehicles.

Interior, Ergonomics, and Comfort Tuning

Replacing a worn or missing backrest adjustment knob is a simple way to improve the daily ergonomics and aesthetics of the seat. This element directly impacts:

• comfort when taking a position behind the wheel or in the passenger seat,
• ease of adjusting the backrest to the user's physique,
• a cohesive, tidy appearance of the side of the seat.

If you are planning more extensive cabin modifications, including seat or steering wheel replacement, it is worth checking out the guide on the Global Parts blog – Car Interior Tuning with Global Parts, which describes the practical application of used interior trim parts.

If you are considering further expansion or repair of the seat system in your Mercedes and are also interested in other elements related to seat adjustment, finishing, or additional mechanisms, check out the available parts in the Other Mercedes Seat Parts category.