Mercedes W166 Gas Pressurized Spring Strut Tailgate Trunk Left N/S A1669802164

The Left Gas Strut for Mercedes W166 Tailgate is an original component of the tailgate lifting system, designed specifically for this generation of SUV. With precise body fitment and factory-set force characteristics, it ensures stable opening and controlled closing of the tailgate, improving everyday usability. This is a practical solution for users who want to restore proper tailgate operation without compromising functionality.

Specifications and technical data

• SKU: A1669802164
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1669802164
• Substitutable numbers: A1669802164, A 166 980 21 64
• Location on the vehicle: Left
• Category: Boot & Hatch Lids

Intended Use and Function in the Vehicle

The presented component is a gas spring strut for the tailgate intended for installation on the left side of the body in Mercedes W166 models. It is responsible for:

• assisting in lifting the rear tailgate,
• holding it in a stable, open position,
• damping the closing motion to reduce structural stress.

Precisely selected operating characteristics ensure the tailgate opens smoothly, without jerks, and its operation is convenient both in urban conditions and during intensive use of the trunk.

Construction and Fitment for Mercedes W166

The gas strut has been designed as an OEM component dedicated to the W166 body, meaning compatibility with factory mounting points and correct operating geometry relative to the tailgate hinges. Thanks to this:

• no body modifications or additional adapters are required,
• the correct kinematics of the tailgate's movement are maintained,
• forces acting on the hinges and body panels remain within the manufacturer's specified range.

The left-side placement is important for even load distribution and cooperation with the right-side strut, so when replacing, pay attention to the correct assignment of the mounting side.

Benefits of Using an Original Tailgate Strut

Using a dedicated, used component from this group allows for restoring proper tailgate operation without the need to invest in expensive replacements with uncertain parameters. Key benefits include:

• factory fit to the tailgate structure,
• appropriately selected gas force, ensuring convenient operation,
• reduced risk of excessive stress on hinges and mountings,
• consistency with other components of the tailgate system.

For the user, this means more predictable tailgate behavior, a reduced risk of it falling unintentionally, and greater comfort during loading and unloading of luggage.

Component Condition and Service Application

The offered gas strut belongs to the Tailgate and Rear Components group, making it a practical service solution for repairs to the rear body section. It is suitable for replacing a single, weakened strut as well as for comprehensive servicing of the tailgate lifting system after a collision or intensive use. A used component allows for optimizing repair costs while maintaining proper functionality.

If you are planning a comprehensive repair or upgrade of the rear body area in your Mercedes and need other components from the same group, such as actuators, hinges, or complete tailgates, check the available parts in the Mercedes Tailgate and Rear Components category.

Additional Technical and Operational Information

When selecting a tailgate strut for a specific vehicle, it is advisable to verify compatibility with the part number and body configuration to ensure proper cooperation with existing components. A correctly selected strut:

• prevents excessive wear of the lock and latching mechanisms,
• reduces the risk of damage from sudden tailgate drops,
• enhances the ergonomics of trunk operation in daily use.

For those interested in a broader technical context of systems in modern vehicles, including solutions that affect durability and operational economy, an article describing the operation of exhaust gas recirculation systems may be helpful – you can find it here: EGR: What it is and why considering used EGR valves is worthwhile.