Arnott C-2609 Air Spring to Coil Spring Conversion Kit - Front and Rear

Mercedes-Benz S-Class Air Suspension Conversion

Arnott C-2609 is an air spring to coil spring conversion kit for 2007-2013 Mercedes-Benz S-Class W221 vehicles equipped with AIRMATIC and without 4MATIC. It converts the factory air suspension to a standard coil spring setup with passive steel springs and custom-tuned shock absorbers for a controlled, comfortable ride.

Built for the Mercedes-Benz S350, S400, S500, S550, and S600, this Arnott NEW line kit provides a direct path away from air suspension components while keeping the vehicle free of dash panel suspension errors through the included computer module.

Key Features

• Air spring to coil spring conversion kit for W221 Mercedes-Benz S-Class models
• Fits front and rear suspension positions on AIRMATIC-equipped vehicles without 4MATIC
• Passive suspension design with steel compression springs
• Black standard replacement springs with open ends
• Custom-tuned front and rear shock absorbers for balanced ride quality
• Patents pending computer module included to eliminate suspension warning lights
• Arnott NEW product line for Mercedes-Benz suspension conversion applications

Detailed Description

Arnott C-2609 is engineered for drivers who want to replace the complexity of the factory air suspension on a 2007-2013 Mercedes-Benz S-Class W221 with a conventional coil spring suspension. The kit is designed for vehicles equipped with AIRMATIC and without 4MATIC, and it supports front and rear conversion on the listed S-Class models. Arnott uses steel springs in a standard replacement grade and pairs them with shock absorbers tuned to maintain a smooth, stable driving feel. The included module addresses the electronic side of the conversion by preventing suspension dash panel error messages after the system changeover. This part number, C-2609, is a practical option for Mercedes-Benz S350, S400, S500, S550, and S600 owners seeking a full suspension conversion solution.

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

What It Helps Solve

• Air suspension compressor cycling caused by leaking or aging air components
• Dash warning lights related to failed AIRMATIC system parts
• Uneven ride height from worn air springs or struts
• Recurring repair costs tied to air suspension maintenance
• Ride instability from deteriorated suspension components

Installation Notes and Tips

Install C-2609 on vehicles that match the listed fitment exactly: 2007-2013 Mercedes-Benz S550, 2007-2013 Mercedes-Benz S600, 2007-2013 Mercedes-Benz S350, 2010-2013 Mercedes-Benz S400, and the specified S500 applications. Confirm the vehicle is equipped with AIRMATIC and does not have 4MATIC before ordering. Follow factory service procedures for suspension disassembly, electrical module handling, and final ride-height verification after installation.

Quality Assurance

Arnott supplies this conversion kit as part of its NEW product line for Mercedes-Benz suspension applications. The design combines passive steel springs, standard replacement suspension components, and a module intended to remove suspension error indications after conversion.