Unity Automotive Air Spring to Coil Spring Conversion Kit P/N:31-573000
Unity Automotive 31-113400 front air spring to coil spring conversion kit for the 2006 Mercedes-Benz S350 and other vehicles converts air/electronic suspension to standard suspension. 4Matic models are excluded.
A front corner that sags or an air suspension warning can mean an air spring or strut has failed. These signs alone do not prove the struts are the problem, since a leaking air line is another common cause.
The 2006 Mercedes-Benz S350, the 2000-2006 Mercedes-Benz S430 and the 2000-2006 Mercedes-Benz S500 take this kit, along with other models. The kit is one per vehicle, with a strut assembly on each side of the front axle. Open the "Vehicles it fits" section to check your exact model and engine.
Fit and size
Build and materials
Two front complete strut assemblies.
Interchange: C-2242 · 4J-2000K
This part cross-references / interchanges with the following part numbers:
Does the Unity Automotive 31-113400 conversion kit fit the 2000-2006 Mercedes-Benz S430?
Yes. Unity Automotive 31-113400 is a front conversion kit for the 2000-2006 Mercedes-Benz S430. Use the "Vehicles it fits" section to check another model.
Does this air spring to coil spring conversion kit work on 4Matic cars?
No. The kit excludes 4Matic models.
What comes in the Unity Automotive 31-113400 kit?
The kit supplies two front complete strut assemblies, one for each side of the front axle.
How do I know my front air suspension needs attention?
A sagging front corner or an air suspension warning light can mean an air spring has failed. A shop can test the air suspension system to find out.
Does converting to coil springs with the 31-113400 kit sacrifice ride height?
No. Unity Automotive 31-113400 is designed for no sacrifice of ride height or quality, and it reduces vehicle down time.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.