Arnott AS-3423 Air Suspension Strut - Front Left

Front Left Air Strut for Mercedes-Benz E Class

Arnott AS-3423 is a new aftermarket air suspension strut for the front left side of select 2010-2016 Mercedes-Benz E Class W212 models with Airmatic and ADS, without 4Matic. It combines a model-specific shock absorber and air spring to restore controlled ride quality and handling response.

Built with Tier 1 components, this Arnott air strut uses a multi-layer Continental ContiTech air sleeve with a protective dust cover, plus a machined aluminum top mount, O-rings, a polyurethane bump stop, heavy-duty crimping rings, and a new airline fitting. AS-3423 is designed and assembled in the USA for direct replacement service on the front left suspension corner.

Key Features

• New Arnott engineered aftermarket air suspension strut
• Front left-hand side application
• For 2010-2016 Mercedes-Benz E Class W212 chassis with Airmatic and ADS, without 4Matic
• Model-specific shock absorber and air spring assembly
• Premium multi-layer Continental ContiTech air sleeve with dust cover
• Machined aluminum top mount and new airline fitting
• Assembled in the USA
• Part number AS-3423

Detailed Description

Arnott AS-3423 is built for Mercedes-Benz E Class owners who need a front left air suspension strut that matches the vehicle’s original air suspension layout. It is engineered for the W212 chassis with Airmatic and ADS, and it is not for 4Matic-equipped models. The assembly is designed to support ride comfort and handling by pairing the air spring and shock absorber in one service unit. This part cross-references Mercedes-Benz OE numbers 2123200913 and 2123201738 for the same application.

Compatible With 2010-2016 Mercedes-Benz E350, front left; 2010-2016 Mercedes-Benz E500, front left; 2010-2016 Mercedes-Benz E63 AMG, front left; and other listed E Class variants including E200, E250, E300, E400, and E550 in the same position. AS-3423 is a direct-fit replacement for the front left air strut on these applications.

What It Helps Fix

• Front-end sag from a worn air spring
• Uneven ride height at the left front corner
• Noisy or inconsistent suspension movement
• Reduced ride comfort over bumps and rough pavement
• Handling instability caused by a failing air strut assembly

Installation Notes

Verify chassis, suspension system, and drivetrain configuration before installation. This part is for the front left position only and is not for 4Matic models. Inspect the airline connection, mounting points, and related suspension components during replacement to confirm proper operation after installation.

Quality Assurance

AS-3423 is a new Arnott aftermarket air suspension strut assembled in the USA with Tier 1 components and backed by Arnott’s industry-leading warranty.