Mercedes W166 Rear Seat Belt Latch Centre Lower Buckle Catch Black A1668601169

Mercedes W166 Seatbelt Buckle Latch Rear is an original part from the seatbelts and parts category, designed for installation in the rear of the vehicle. This component has been engineered for precise integration with the safety system in premium Mercedes models, ensuring stable belt fastening and proper pretensioner function.

Specifications and technical data

• SKU: A1668601169
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1668601169
• Substitutable numbers: A1668601169, A 166 860 11 69
• Location on the vehicle: Rear
• Color: Black
• Category: Seat Belts & Parts

Purpose and Function in the Safety System

The rear seatbelt buckle, latch, and pretensioner in the Mercedes W166 are responsible for the mechanical connection of the seatbelt to the seat structure or bodywork. A properly functioning component of this type:

• stabilizes the belt's position relative to the passenger's body on the rear seat,
• allows for correct fastening and release of the latch in daily use,
• works in conjunction with the pretensioner system, which in the event of a collision limits uncontrolled body movement,
• helps maintain compliance with Mercedes' original safety concept.

Its placement in the rear of the vehicle makes this component crucial for the protection of rear passengers, especially during sudden braking or impact situations.

Construction, Color, and Interior Fitment

The presented seatbelt buckle latch has been manufactured according to Mercedes' factory standards. The design is intended for installation in the rear cabin area, maintaining original mounting points and correct geometry relative to the seat and backrest.

The black color allows for seamless integration into the typical interiors of Mercedes W166 models, which are often dominated by dark upholstery and trim. This ensures the buckle does not disrupt the cabin's aesthetics while maintaining a neutral, universal appearance suitable for factory configurations.

Benefits of Using an Original Buckle Latch

Using a factory-original solution in the seatbelt system offers several practical advantages:

• Full compatibility with the Mercedes safety system – maintaining the manufacturer's intended performance characteristics of the pretensioner and buckle.
• Proper fit with the rear seat – no need for modifications, drilling, or alterations to the seat or bodywork structure.
• Visual consistency with the interior – the black color integrates well with factory seatbelts and upholstery.
• Stable belt fastening – minimizing play and unwanted movement during driving.

A component configured in this way allows for the restoration of correct seatbelt system functionality on the rear seat after damage, wear, or removal of the previous component.

Condition, Origin, and Service Application

The offered rear seatbelt buckle latch is from a Mercedes vehicle and is a used part. This type of component is particularly useful in situations where:

• it is necessary to replace a damaged or locked pretensioner after a collision,
• there has been mechanical damage to the buckle (e.g., cracked housing, latch mechanism issue),
• a post-accident repair of the rear of the vehicle is being carried out to restore full belt functionality.

Choosing an original part from disassembly allows for the preservation of the factory safety system performance characteristics, which is especially important in premium vehicles like the Mercedes W166.

Mercedes Seatbelts and Parts – Component Selection

If you are looking for other parts from the Mercedes seatbelts and parts category for your car, check out the Mercedes seatbelts and parts available in our store to select compatible components for your specific body version and equipment.

More About Used Parts and Vehicle Construction

When selecting safety components, it is beneficial to understand the differences between factory solutions in various car generations and the importance of OEM parts in preserving a vehicle's character. This topic is discussed in more detail in an article on our blog – Classic Mini vs. Modern MINI – How Construction Has Changed and Which Original Mini Parts Help Preserve Their Character, which illustrates how manufacturers design systems and select components across model generations.

Additionally, if you are interested in the broader context of using used components in premium cars, it is worth reading the material Used Parts for Mercedes – Original Parts from Disassembly, which describes the practical aspects of choosing original parts from the secondary market.