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

$1,259.00 $1,049.00Add to cart

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Product Overview
Kit Class: PREMIUM Warranty: LIFETIME

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.

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)
  • Made In USA
  • Limited Lifetime Warranty
  • Made With Glide Ride Technology

Product Specifications

  • Year: 2007-2013
  • Make: Mercedes Benz
  • Model: S550
  • Brand: Strutmasters
  • SKU: MU14FM

Air Suspension Conversion Kit Includes

These are the components and materials you can expect to find shipped with your new purchase.

  • 2 Completely Assembled Front Struts
  • 2 Completely Assembled Rear Struts
  • (4) Premium Steel Coil Springs
  • Suspension Warning Light Fix Module
  • Detailed Installation Instructions

Shipping Info

All of our products have shipping options available to guarantee you get your part in a timely and affordable manner.

  • Next Business Day: Delivery typically by 10:30 a.m.
  • 2 Business Days: Delivery typically by end of day
  • 1-5 Business Days: Delivery based on distance to destination
Features & Benefits
Strutmasters Conversion Kits Save Money, Time and Headaches
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 standard.

Our Conversion Kits are built to improve the performance and stability of your ride. Converting to a non-air suspension system gives you a more reliable ride.

Our kits don't require any major modifications to your vehicle to install.

Only Strutmasters offers premium american-made coil springs on our conversion kits. Notice the difference with a better, smoother ride!

All of our kits come with easy to install instructions so you or your mechanic can get your car up and running faster than ever.

Why Choose Strutmasters Instead Of Those Other Guys

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.

How Do I know If My S550 Air Suspension is failing?

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.


Overall Savings

How does this part compare to OEM parts and other competitive solutions?

  • $6,451

    in Savings

  • 86%

    Less Than Dealer

2007-2013 Mercedes Benz S550 (RWD) OEM Replacement Parts:

+ 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).

After Market Replacement Parts:

+ 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).

Strutmasters Conversion Kit:

+ (4) completely pre-assembled coil-over struts + (1) suspension warning light fix module + Detailed installation instructions + Over-the-phone technical support and a Limited Lifetime Warranty IMPORTANT:  This product fits rear-wheel drive S550 models with Airmatic (air suspension) system ONLY. **Replacement component prices were quoted directly from an actual Mercedes-Benz Genuine Original Equipment Replacement Parts site, results may vary**

Our Price: 1049!

Suspension Components List

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.

Strutmasters Didn't Just Perfect the Converison Kit,
We Invented the Air Suspension Conversion Kit
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More Reliable Than Air Suspensions
Our Conversion Kits are built to improve the performance and stability of your ride. Converting to a non-air suspension system gives you a more reliable ride.
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No Modifications Required to Install
Our kits don't require any major modifications to your vehicle to install.
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The Original Conversion Kit
Strutmasters created the first conversion kit and has spent the past two decades perfecting it.
Engineered and Assembled
in the USA
Save time, frustration, and money with our air to non-air suspension conversion a kits. Find the best solution for your vehicle online or have our experts guide you through the process.
Technical Staff
From ASE-certified Master Techs to electrical engineers, you can rest assured that when you buy from us, you have all of our combined education and skill-sets backing your new suspension!
Installation Guides
and Videos
Watch easy-to-follow videos on how to easily install our conversion kits yourself. Prefer reading along? We have step-by-step installation guides just for you.

Performance You Can’t Find Elsewhere
Made With Premium American-Made Coil Springs

American Made Parts,
Unrivaled Quality

Get Your Parts When You Need Them
Fast Shipping Guaranteed

Professional Assistance and ASE Certified Tech Support
Those Other Guys Don't Offer

Video Library
Watch & Learn
Watch videos to help you make the right decision when purchasing the best conversion kit for your vehicle.
Real Customers, Real Reviews
Read reviews from people just like you looking for the perfect solution for their suspension needs.
Name: | Location: Lyman SC | SKU: MU14FM

I found Strutmasters from an internet search. I must say it was my lucky day. My 2007 Mercedes S550 was on the bench for 3 weeks prior because of the outrageous replacement prices of the OEM air struts. The customer service representative Mrs. D was awesome, she located the struts for my vehicle and process the order in less than 10 minutes. The new conversion kit was on my door steps in 2 days. Long story short, my 07 is back on the road and riding as smooth as ever.. Thanks Strutmasters.


Name: | Location: San Diego, CA | SKU: MU14FM

“Spoke with Darrell and after 15 minutes with him on the phone, I could tell that he was very knowledgeable and willing to take care of any concern that I had.”

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$1,259.00 $1,049.00Add to cart

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