Arnott AS-3894 Air Suspension Strut - Front Right

Front Right Air Strut for CLS-Class

The Arnott AS-3894 is a new front right air suspension strut for select 2012-2017 Mercedes-Benz CLS Class models with Airmatic and without 4Matic. It combines a model-specific shock absorber and air spring to restore controlled ride height, ride comfort, and handling response on the Mercedes-Benz CLS400, CLS500, CLS550, CLS350, and CLS63 AMG.

Key Features

• New Arnott-engineered air suspension strut for the front right side
• Air adjustable design with progressive spring rate
• Hydraulic internal damper for controlled suspension movement
• Premium multi-layer Continental ContiTech air sleeve with dust cover
• Machined aluminum top mount, O-rings, polyurethane bump stop, and new airline fitting
• Built and assembled in the USA with Tier 1 components
• Fits Mercedes-Benz CLS Class W218 chassis applications with Airmatic, without 4Matic, including AMG models

Product Details

Arnott’s New product line focuses on replacement air suspension components engineered for direct-fit service. The AS-3894 follows that approach with a complete front right air strut assembly built around application-specific geometry and materials. It is designed for 2012-2017 Mercedes-Benz CLS Class W218 chassis vehicles with Airmatic, excluding 4Matic models and excluding Coupes. This part number, AS-3894, is a direct replacement option for drivers looking to address front suspension performance on the CLS platform.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Front right suspension sag or uneven ride height
• Air spring leakage or loss of air pressure
• Excessive bouncing, harshness, or reduced damping control
• Noisy or worn front suspension response
• Handling instability caused by a failing air strut

Installation Notes

Compatible with 2012-2017 Mercedes-Benz CLS Class W218 chassis vehicles equipped with Airmatic and without 4Matic. Fits 2015-2018 Mercedes-Benz CLS400, front right; fits 2012-2018 Mercedes-Benz CLS500, front right; fits 2012-2018 Mercedes-Benz CLS550, front right; fits 2012-2014 Mercedes-Benz CLS350, front right; fits 2012-2014 Mercedes-Benz CLS63 AMG, front right. Verify chassis, suspension type, and position before installation. The upper mount uses a stud-style design, and the assembly includes a boot, spring isolators, and upper mounting isolator.

Quality Assurance

AS-3894 is a new Arnott air suspension strut assembled in the USA using Tier 1 components, including a Continental ContiTech air sleeve and a machined aluminum top mount. The construction also includes heavy-duty crimping rings and a new airline fitting for a complete replacement assembly.