The 2007-2012 Mercedes-Benz S550 4MATIC 4 Wheel Air Suspension Conversion Kit With Light Fix (MU24FM) is the perfect solution to your air suspension problems. Designed to be very affordable, you can convert your air suspension to use passive shocks and coil springs for less than the price of replacing one original equipment air spring.
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- Why Strutmasters
- OEM Numbers
Convert Your Air Suspension To A Coil Spring Suspension. End Your Air Suspension Problems Forever...
Conversion Kit Features
- Saves Money
- All New Components
- Rides Great
- More Reliable Than Air Suspensions
- No Modifications, Easy To Install
- Premium Steel Coil Springs
Air Suspension Conversion Kit Includes
- 2 Completely Assembled FRONT Struts
- 2 Completely Assembled REAR Struts
- Suspension Warning Light Elimination Module
- Detailed Instructions
This Conversion Kit Fits2007 Mercedes S550 4MATIC, 2008 Mercedes S550 4MATIC, 2009 Mercedes S550 4MATIC, 2010 Mercedes S550 4MATIC, 2011 Mercedes S550 4MATIC, 2012 Mercedes S550 4MATIC, 2013 Mercedes S550 4MATIC
- This Kit INCLUDES The Light Fix Module (MA2M)
- Kit Fits S550 4MATIC Air models and ABC suspension only!
- With Rims up to 22 inch
- This kit will not fit Rear Wheel Drive models.
What kind of suspension does my 2007-2013 Mercedes-Benz S550 4MATIC have?The 2007-2013 Mercedes-Benz S550 4MATIC is built with the following suspension components:
2007-2013 Mercedes-Benz S550 4MATIC Air Springs (x4)- commonly referred to as air bags, a plastic and rubber bag that is fitted on top of the strut that uses pressurized air as a cushion instead of a metal coil spring to hold a vehicle off of the ground and off of its wheels. These are the number one cause of all air suspension leaks. All air springs all go bad at about the same rate. If one is leaking, the others will not be far behind. For a proper repair, all of them need to be replaced at the same time.
2007-2013 Mercedes-Benz S550 4MATIC Struts (x4)- a type of shock absorber; has metal tubing filled with gas-charged hydraulic fluid that is connected to the wheel of a vehicle in order to reduce the effects of vertical travel on a rough surface which controls the bounciness, and therefore comfort, of a vehicle.; the air spring assembled on top of the strut is commonly referred to as an air strut.
2007-2013 Mercedes-Benz S550 4MATIC Height Sensors (x4)- a linkage located near each wheel of a vehicle with any electronic suspension that, either mechanically or electronically, constantly measures the height of the vehicle, and reports this information back to the control module so that the computer can identify if changes in height need to be adjusted accordingly. The ride height sensor is a moving part, and like all moving parts, they will eventually wear out.
2007-2013 Mercedes-Benz S550 4MATIC Air Lines- tubes that run from a compressor to the air struts which carry pressurized air to the air bags.
2007-2013 Mercedes-Benz S550 4MATIC Solenoids (x4)- usually L-shaped, these plastic components connect the electrical connection and lines of suspension components to the suspension control module on vehicles with active suspension. The solenoid regulates the air pressure for each air spring. Solenoids start to leak as they wear out causing the vehicle to sag or to lean. This will cause the ride height sensor to send a signal to activate the compressor in an attempt to inflate the air suspension and level out the vehicle. This excessive work load will eventually lead to total failure of the compressor.
2007-2013 Mercedes-Benz S550 4MATIC Compressor Assembly- creates/sends pressurized to active suspension components. When the air suspension starts leaking, the compressor/pump starts working harder to try to keep the system inflated. By the time air suspension leaks down completely, sitting the vehicle on its tires, the compressor will either have failed or be well on its way to full failure. Buying replacement struts and taking the time to install them only to find out the compressor still needs to be replaced can be very frustrating, time-consuming, and expensive.
2007-2013 Mercedes-Benz S550 4MATIC Suspension Control Module- a computer which is responsible for the operations of the air suspension system and maintaining the vehicle's correct ride height.
2007-2013 Mercedes-Benz S550 4MATIC O-rings- Although they are the least expensive parts of the air suspension, they are responsible for maintaining the seal where all of the air lines connect. Be sure to replace the O-rings when repairing any air suspension system.
Suspension Failure Signs
The most common symptom of a leaking or failed air suspension is a sudden noticeable uneven height difference between different sides of the vehicle. The vehicle could have a sagging rear end or front end, it could lean to the left side or right side, or the entire vehicle could be squatting down lower than normal. Other symptoms could include a suspension warning message or light in the instrument cluster, or the air compressor no longer working or running way too often (which would be very noisy and noticeable). The last major tip is your vehicle is no longer able to reach or maintain the proper ride height.
OEM Replacement Cost
- Air Struts ($1,800/strut) ) +
- Air Compressor Assembly ($360)
- = TOTAL: Over $7,500 (and that doesn't include replacing electronic components that are known to fail such as the height sensors).
Aftermarket Replacement Cost
- Front Air Struts ($400/strut) +
- Rear Air Struts ($930/strut) +
- Air Compressor Assembly ($360)
- = TOTAL: Over $3,000 (and that doesn't include replacing electronic components that are known to fail such as the height sensors).
We have already seen the assortment of parts that construct the air suspension system. Our conversion kit gets rid of having to depend on all of those parts functioning correctly and in sync. This conversion kit consists of (1) new suspension-light module and (4) completely assembled coil-over struts that are as simple as 4 bolts per strut for installation. It normally only takes about an hour per wheel for installation, and is designed for Do It Yourself Customers. The conversion system not only saves you time and frustration, it saves you lots of money. Now let's take a look at the cost difference between choosing an air vs. a non-air suspension system. Here, we are going to compare three prices: the price for repairing your air suspension system at the dealer, the price for installing aftermarket air suspension parts on your vehicle, and the price of getting rid of the faulty air ride heartache and installing a brand new coil-over suspension conversion kit:
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