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2007-2013 Mercedes Benz S550 (RWD) 4 Wheel Air Suspension Conversion Kit With Light Fix (MU14FM)
2007-2013 Mercedes Benz S550 (RWD) 4 Wheel Air Suspension Conversion Kit With Light Fix (MU14FM)
2007-2013 Mercedes Benz S550 (RWD) 4 Wheel Air Suspension Conversion Kit With Light Fix (MU14FM)
2007-2013 Mercedes Benz S550 (RWD) 4 Wheel Air Suspension Conversion Kit With Light Fix (MU14FM)

2007-2013 Mercedes-Benz S550 (RWD) 4 Wheel Air Suspension Conversion Kit With Light Fix (MU14FM)

The 2007-2013 Mercedes Benz S550 (RWD) 4 Wheel Air Suspension Conversion Kit With Light Fix (MU14FM) 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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Convert Your Air Suspension To Our Exclusive Coil Spring Suspension. End Your Air Suspension Problems Forever...

Strutmasters 2007-2013 Mercedes Benz S550 4 Wheel Air Suspension To Coil Spring Conversion Kit is the perfect solution to your suspension problems. Designed to be very affordable, you can convert your suspension to use our premium steel coil springs and passive struts for less than the price of replacing just one air strut at the dealer.

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
  • (4) Premium Steel Coil Springs
  • Suspension Warning Light Fix Module
  • Detailed Installation Instructions

This Conversion Kit Fits

2007 Mercedes S550, 2008 Mercedes S550, 2009 Mercedes S550, 2010 Mercedes S550, 2011 Mercedes S550, 2012 Mercedes S550, 2013 Mercedes S550

Product Notes

  • IMPORTANT: Product Fits Rear Wheel Drive S-550 Models Equipped With Airmatic (Air Suspension) System Only
  • INCLUDES Suspension Warning Light Fix Module (MA2M)


Replaced Components
The 2007-2013 Mercedes Benz S550 is built with the following suspension components: 2007-2013 Mercedes Benz S550 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 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 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 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 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 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 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 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
Look for these common symptoms that indicate the air suspension system on the 2007-2013 Mercedes Benz S550 is leaking or going bad. Early detection of a failed air suspension system is critical to avoiding total failure. One sagging end, one inflated end, or a shifting lean from side to side are all red flags. Height imbalances will eventually wear out the air compressor, so do not leave them unchecked for long. An illuminated suspension warning light on the instrument cluster is a classic sign as well. If the S550 is unable to reach and maintain the proper ride height then get a repair as quickly as possible.

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 still doesn't include replacing electronic components that are known to fail such as the height sensors).
This air suspension conversion system is designed to fit Mercedes S550 models that are rear-wheel drive and equipped with the Airmatic factory suspension. Strutmasters uses premium steel coil springs and struts tuned specifically for your vehicle. We design and assemble all of our conversion kits at our headquarters in North Carolina. We check each component during the process and build product in small batches to ensure the highest quality. This product comes with four completely assembled coil over struts and a suspension warning light elimination. Detailed instructions and online installation videos make installation a breeze. For further assistance, call one of our ASE-certified technicians on the phone. The kit is a direct replacement option- no modifications are needed. Lastly, the kit costs a fraction of the price of dealership replacement and individual aftermarket part replacement.
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