Front Air Suspension Shock Struts w/ADS Set For Mercedes W166 X166 GL450 GLS550

Front Air Suspension Shock Struts with ADS Set for Mercedes W166 X166 GL450 GLS550

This pair of front air suspension shock struts with Adaptive Damping System (ADS) replaces the worn units on Mercedes W166 and X166 chassis models, restoring factory-style ride control and load leveling.

Overview

These front air suspension shock struts with ADS are a direct-fit replacement set for the front axle of Mercedes W166 and X166 SUVs. Each strut combines an air spring with an adaptive damping valve so the suspension can adjust firmness and ride height on demand. They suit owners of GL450, GLS550, and other W166 or X166 models who need to restore proper ride quality and handling.

Built For Performance

• Integrated Adaptive Damping System valve for real-time firmness adjustment
• Air spring bladder designed to hold pressure and maintain ride height under load
• Corrosion-resistant housing and protective dust boot for road debris and moisture
• Direct bolt-on fitment for the front axle mounting points
• Sold as a set of two struts to service both front corners at once
• Sealed assembly that reduces the risk of leaks at the damper and air line

Fits These Machines

• for Mercedes-Benz GL450 (X166)
• for Mercedes-Benz GLS550 (X166)
• for Mercedes-Benz GL-Class W166 models
• for Mercedes-Benz GLE-Class W166 models

On-The-Job Use

• Daily driving and commuting where factory ride comfort is expected
• Towing and hauling loads that benefit from automatic load leveling
• Highway cruising where adjustable damping smooths uneven pavement
• Restoring a vehicle that has sagged or lost air pressure at the front

Specs At A Glance

Good To Know

Q: Do I need a diagnostic scan tool after installing these struts? A: Many W166 and X166 models require a scan tool to recalibrate ride height after strut replacement. Confirm your model's procedure before installation.

Q: Can these struts be installed on one side only? A: They are sold as a pair, and replacing both front struts together is recommended to keep damping and ride height balanced side to side.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.