Arnott AS-2784 Air Suspension Strut - Front Left

Arnott AS-2784 Front Left Air Strut

Arnott AS-2784 is a new aftermarket air suspension strut for the front left side of the 2003-2006 Mercedes-Benz S430 and S500 equipped with AIRMATIC and 4MATIC. It replaces the original front left air strut with a pre-assembled unit built around a custom-valved shock absorber and a ContiTech air spring bladder.

Key Features

• Fits 2003-2006 Mercedes-Benz S430, front left
• Fits 2003-2006 Mercedes-Benz S500, front left
• New custom-valved hydraulic shock absorber
• Multi-ply Continental ContiTech air spring bladder
• Aluminum can protection for the air spring assembly
• Anodized CNC-machined top mount made from aircraft-quality aluminum
• Pre-assembled for easier installation
• Includes new air fitting, solenoid, dust boot, seals, O-rings, bump stop, and heavy-duty crimping rings
• Air adjustable with progressive spring rate

Product Details

AS-2784 is engineered for the front left position on Mercedes-Benz W220 S-Class vehicles with AIRMATIC and 4MATIC. Arnott builds this air suspension strut with a gas-charged hydraulic damper, a progressive spring rate, and a multi-ply ContiTech air bladder to restore ride height control and suspension response. The assembly is designed and assembled in the USA and uses an anodized aluminum upper mount, protective dust boot, and long-life sealing components for a direct replacement approach. This part cross-references Mercedes-Benz 2203201338 and 2203202138 for the same application.

Common Problems This Part Addresses

• Front left corner sagging or loss of ride height
• Air leaks from a worn bladder or seals
• Excessive bouncing or reduced damping control
• Suspension warning lights related to air strut failure
• Uneven stance on W220 Mercedes-Benz S-Class models

Installation Notes

Install on vehicles equipped with air suspension at the front left position only. Verify the vehicle is a 2003-2006 Mercedes-Benz S430 or S500 with AIRMATIC and 4MATIC before installation. Follow the included detailed installation manual and inspect the air line, mounting points, and related suspension components during replacement. AS-2784 is pre-assembled to reduce setup time, but proper system depressurization and calibration procedures should be followed during service.

Quality Assurance

Arnott manufactures AS-2784 as a new replacement air suspension strut assembled in the USA with branded ContiTech air spring materials, CNC-machined aluminum components, and new sealing and wear parts for consistent fit and function.