Mercedes-Benz M E Class W164 W211 Front Seat Left Right Belt Height Adjuster

Mercedes W164 W211 Front Belt Height Adjuster is an original part from the Seat belts and parts group, designed for precise adjustment of the seat belt's position in the front seats. It ensures a comfortable fit of the belt to the driver's and passenger's height, improving the ergonomics and comfort of the passive safety system.

Specifications and technical data

• SKU: A2118600688
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2118600688
• Substitutable numbers: A2118600688, A 211 860 06 88, KZ
• Location on the vehicle: Front, Left, Right
• Category: Seat Belts & Parts

Purpose and Function of the Component

The front belt height adjuster in W164 and W211 series models is responsible for changing the position of the upper seat belt anchor point on the body pillar. The component works with the factory belt guide mechanism, enabling:

• setting the belt at the appropriate height relative to the user's shoulder,
• reducing pressure on the neck and collarbone,
• stable guidance of the belt webbing during driving and in emergency situations.

This ensures the safety system maintains the correct working geometry, which is important for both comfort and the effectiveness of the system.

Compatibility and Vehicle Placement

The presented component is designed for installation in the front part of the cabin, on the left or right side, according to the factory body construction. Its placement on the vehicle is designed to work with the original mounting points on the pillar and with the standard seat belts used in that vehicle generation.

This solution allows for consistency with the factory safety system, without the need for intervention in the body structure or additional modifications to the mountings.

Technical Characteristics and Installation

The belt height adjuster is a mechanical component that transfers loads from the seat belt to the body structure. For this reason, it is important to use a part that complies with the vehicle manufacturer's requirements. The offered component comes from the Mercedes line, which helps maintain the correct geometry, rigidity, and cooperation with other system elements.

During installation, it is recommended to:

• check the condition of the mounting points on the pillar,
• verify the smooth operation of the adjustment mechanism after installation,
• confirm the correct guidance of the belt webbing after the upholstery is fully reassembled.

This approach helps maintain the proper functioning of the safety system and avoid irregularities in the belt guide's operation.

Component Condition and Practical Application

The offered belt height adjuster is a used part, which is a beneficial solution for users looking for a factory component at a reasonable price, while maintaining compatibility with the original vehicle construction. The use of such a component is particularly justified in cases of:

• repairs after a collision in the pillar and belt system area,
• damage or seizing of the adjustment mechanism,
• comprehensive interior renovation while preserving original technical solutions.

By maintaining the factory installation concept, the part integrates well with the existing structural system and does not require adaptation of other components.

Safety System Expansion and Technical Knowledge

If you are planning a comprehensive repair or upgrade of the passenger safety zone in your Mercedes and need other parts from the same group, such as pretensioners, retractors, or belt guides, check the available parts in the Mercedes Seat belts and parts category.

For users interested in the broader use of second-hand components in premium segment vehicles, practical tips on selecting and installing used subassemblies may be useful – you can find them in the article Audi on second-hand parts – tuning and repairs without loss of quality, which discusses the approach to economical yet solid repairs in German brand cars.

If you want to better understand the differences between original, aftermarket, and used parts and consciously choose a service strategy for your car, it is worth reading the guide Original, aftermarket, or used – which car parts are most cost-effective?, which discusses cost and quality aspects and fitting by technical identifiers.