Arnott AS-2820 Air Suspension Strut - Front

Front Air Suspension Strut for Mercedes-Benz S-Class

Arnott AS-2820 is a new aftermarket front air suspension strut for select 2007-2013 Mercedes-Benz S-Class W221 models equipped with AIRMATIC and without 4MATIC. It is built as a fully assembled replacement with a new Continental ContiTech rubber air spring bladder and a custom-valved shock absorber for direct electronic connection.

Key Features

• New, not remanufactured, front air suspension strut
• Designed and assembled in the USA
• Custom-valved hydraulic shock absorber
• Continental ContiTech rubber air spring bladder
• Aluminum can and dust baffle help shield internal components from debris
• Heavy-duty crimping rings, seals, O-rings, and bump stop included in the assembly
• Direct plug-in electronic connector helps eliminate fault codes
• Air adjustable with progressive spring rate
• Mounting hardware included

Product Details

Arnott’s NEW product line focuses on replacement air suspension components built for direct-fit service. AS-2820 follows that approach with a complete front air strut assembly for the Mercedes-Benz S-Class W221 chassis, including S350, S400, S500, S550, S600, S63 AMG, and S65 AMG applications listed below. This Arnott AS-2820 air suspension strut is engineered for vehicles with AIRMATIC and without 4MATIC, and it cross-references Mercedes-Benz part numbers 2213204913 and 2213209313 for the same application.

Fits 2011-2013 Mercedes-Benz S350, front. Fits 2010-2013 Mercedes-Benz S400, front. Fits 2013 Mercedes-Benz S500, front. Fits 2007-2011 Mercedes-Benz S500, front. Fits 2007-2013 Mercedes-Benz S550, front. Fits 2007-2013 Mercedes-Benz S600, front. Fits 2008-2013 Mercedes-Benz S63 AMG, front. Fits 2007-2013 Mercedes-Benz S65 AMG, front.

Common Issues This Part Addresses

• Front-end sagging from a worn air spring bladder
• Uneven ride height on a Mercedes-Benz S-Class W221 with AIRMATIC
• Air leaks caused by aging seals, O-rings, or bladder material
• Suspension fault codes related to a failing front strut assembly
• Reduced ride quality from a weak or leaking shock absorber

Installation Notes

Verify the vehicle is equipped with AIRMATIC and does not use 4MATIC before ordering. This front air suspension strut plugs directly into the vehicle’s electronic connector and is intended for direct replacement on the specified Mercedes-Benz S-Class models. Confirm the upper stud and lower bolt mounting points match the original unit before installation.

Quality Assurance

AS-2820 is a new Arnott assembly built with a Continental ContiTech air spring bladder, protective aluminum shielding, and heavy-duty sealing components for consistent service in front suspension applications.