Mercedes W166 Belt Height Adjuster Rear Left Right Seat N/O/S A1668600088

The Mercedes W166 Rear Seat Belt Adjuster Slider is an original part from the Seat Belts and Parts category, designed for the rear seat of Mercedes W166 vehicles. It ensures proper adjustment of the belt mounting height, contributing to the comfort and safety of rear passengers.

Specifications and technical data

• SKU: A1668600088
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1668600088
• Substitutable numbers: A1668600088, A 166 860 00 88
• Location on the vehicle: Rear, Right, Left
• Category: Seat Belts & Parts

Vehicle Application and Placement

The rear seat belt adjuster slider in the W166 model is responsible for setting the upper anchor point of the seat belt on the rear bench. This component is intended for installation on the rear axle of the vehicle, on both the right and left sides, allowing for consistent adjustment of both rear seat belts.

This solution enables:

• ergonomic belt adjustment to the passenger's height,
• stable guidance of the belt webbing in the correct position,
• maintenance of the correct safety system geometry on the rear bench.

Technical and Functional Characteristics

The rear seat belt adjuster slider in the Mercedes W166 is a structural component that works with the factory seat belt. It is responsible for the smooth movement of the mounting point within the guide and its locking in the selected position.

Key features of this component include:

• compatibility with the factory safety system in the W166 body,
• precise belt guidance that limits twisting and chafing of the webbing,
• stable mounting to the body structure in accordance with the manufacturer's specifications.

By using the original adjuster, consistency with other safety system components is maintained, which is important for both user comfort and the correct operation of the system in emergency situations.

Component Condition and Service Application

The offered rear seat belt adjuster slider is a used part, sourced from disassembly. It is a practical service solution in cases of:

• mechanical damage to the guide or slider (e.g., after a collision or improper use),
• seized adjustment mechanism making it difficult to change the belt's position,
• missing mounting elements after previous body repairs.

Using an original part from the same model series ensures factory fitment and reduces the risk of installation problems typical of aftermarket replacements of uncertain origin.

Benefits of Installing the Original Belt Slider Adjuster

Replacing a faulty adjuster with an original Mercedes W166 part offers several practical benefits:

• restoration of full functionality to the rear seat belt on the right or left side,
• increased passenger comfort due to adjustable mounting height,
• maintenance of compliance with the manufacturer's original safety standards,
• aesthetic integration with the interior thanks to using a part from the same model line.

For workshops and services specializing in the Mercedes brand, this is a solution that allows for efficient, predictable repairs without the need for body structure modifications.

Other Seat Belts and Parts for Mercedes

If you also need other parts from the Mercedes Seat Belts and Parts category – such as additional mounts, pretensioners, or complete seat belts for this manufacturer – check out the Mercedes seat belts and parts available in our store to select components tailored to your specific model.

Practical Usage Tips

When working on the safety system, it is always advisable to pay attention to the overall condition of the webbing, mounts, and anchor points. Regular visual inspections and prompt action on any signs of difficult adjustment mechanism operation are good practices. More tips on operating and replacing car parts can be found in the article TOP 10 Most Frequently Replaced Parts in Your Car, which will help you plan maintenance work in a cost-effective manner.