Mercedes W177 Saloon Rear Seat Lock Release Linkage Bowden Cable A1779204102

Mercedes W177 Saloon Rear Seat Lock Release Linkage Bowden Cable is an original backrest adjustment system component designed for installation in the rear of the vehicle. Thanks to its precise construction, it ensures reliable release of the backrest lock, facilitating seat folding and convenient use of the luggage space. It is a practical solution for users who expect efficient interior mechanism operation and the preservation of factory functionality in their Mercedes.

Specifications and technical data

• SKU: A1779204102
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779204102
• Substitutable numbers: A1779204102, A 177 920 41 02, KD
• Location on the vehicle: Rear
• Category: Additional Seat Parts

Purpose and function of the release cable

The presented cable is responsible for the mechanical release of the rear seat lock, allowing the backrest to be unlocked and folded. The component operates in the rear zone of the cabin, working in conjunction with the factory backrest adjustment mechanism. A correctly selected cable is crucial for:

• smooth operation of the backrest folding lever or handle,
• trouble-free expansion of the luggage space,
• maintaining the original ergonomics of the Mercedes interior.

By maintaining the factory geometry and length, the cable works with the standard guides and hooks in the rear part of the seat, ensuring repeatable, predictable mechanism operation.

Benefits of using an original Mercedes cable

Using an original solution in the seat adjustment system allows for maintaining the structural consistency of the interior. The Mercedes W177 Saloon Rear Seat Lock Release Linkage Bowden Cable has been designed for the specific geometry of the backrest, which minimizes the risk of improper tension, jamming, or excessive slack. In practice, this means:

• stable operation of the locking mechanism with every use,
• no need for modifications to mounts or cable routing,
• maintaining seat operation comfort in accordance with the manufacturer's specifications.

For users who frequently fold the rear backrests, a functional cable is an essential element of daily operation – it affects loading convenience, quick access to the trunk, and the overall functionality of the rear cabin area.

Installation and operational characteristics

The component is designed to operate in the rear part of the vehicle, in direct connection with the backrest structure. Installation involves properly routing the cable through the factory guides and attaching its ends at the points provided by the manufacturer. When replacing, it is worth paying attention to:

• correct positioning of the cable relative to the seat frame,
• absence of kinks and excessive abrasion at contact points with metal elements,
• free movement of the cable throughout the full range of backrest operation.

A properly installed cable ensures repeatable lock release without the need for excessive force, which translates into comfort when using the rear bench seat and less strain on other mechanism components.

Component condition and practical application

The product comes from the Other seat parts group, which means it is dedicated to supplementing the existing seat structure, not modifying it. This solution is particularly useful in situations where the existing cable has worn out, suffered mechanical damage, or stopped working properly with the release lever. Replacing it with a functional component restores:

• full functionality of the rear backrest folding,
• trouble-free use of the cargo space,
• consistency of interior mechanism operation with the rest of the vehicle's equipment.

For workshops and service centers specializing in the Mercedes brand, this is a practical component that allows for the quick repair of faults related to the rear seat lock without interfering with the frame structure.

Related components and service knowledge

If you are planning a comprehensive repair or upgrade of the seat area in your Mercedes and need other elements from the same group, such as guides, adjustment mechanisms, or additional backrest mounts, check the available parts in the Other Mercedes seat parts category.

In the case of post-accident repairs, where interior elements are also damaged, practical tips regarding the selection of used components may be useful. More information on the safe use of dismantled parts can be found in the article Bodywork and chassis – post-accident repairs using dismantled parts, which discusses procedures, application examples, and the most frequently asked questions related to such repairs.