Arnott C-3547 Air Spring to Coil Spring Conversion Kit - Front and Rear

Mercedes-Benz ML/GL Air Suspension Conversion

Arnott C-3547 converts the front and rear air suspension on select Mercedes-Benz ML and GL models to steel coil springs. This conversion kit is built for drivers who want a direct replacement solution for a failing air suspension system on the W164 platform.

• Air spring to coil spring conversion kit for front and rear suspension
• Fits 2006-2011 Mercedes-Benz ML350, ML500, ML550, ML320, and ML450 applications
• Fits 2007-2012 Mercedes-Benz GL320, GL450, GL500, GL550, and GL350 applications
• Steel coil springs with black finish
• Standard replacement suspension grade
• Includes Arnott’s patented Electronic Bypass Module to disable suspension warning lights
• US designed and assembled with American steel spring construction

Product Details

Arnott Part Number C-3547 is engineered for owners replacing the factory air suspension on Mercedes-Benz ML and GL vehicles with a conventional coil spring setup. The kit uses passive steel compression springs and strut assemblies to replace the original air components while the Electronic Bypass Module helps eliminate dashboard suspension warnings after the conversion. Arnott C-3547 is a practical option for 2005-2011 Mercedes-Benz ML/GL (W164) vehicles when the goal is to move away from air suspension service concerns and restore a simpler suspension layout.

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

Common Problems This Kit Can Address

• Air suspension warning lights on the dashboard
• Failure of front or rear air springs
• Vehicle sagging from leaking air suspension components
• Uneven ride height on Mercedes-Benz ML and GL models
• Repeated air suspension maintenance on W164 chassis vehicles

Installation Notes and Tips

Install Arnott C-3547 on the specified Mercedes-Benz ML and GL fitments only. Because this kit converts the vehicle from air suspension to coil springs, verify that the suspension system is fully depowered and that all original air suspension components are removed or disabled according to the vehicle service procedure. The included bypass module is used to address suspension warning messages after conversion.

Quality Assurance

Arnott designs and assembles this kit in the United States and uses American steel for the coil springs. The standard replacement construction and patented bypass module support a clean conversion for the listed Mercedes-Benz applications.