2007-2012 Mercedes-Benz GL450 4MATIC 4-Wheel Air Suspension Conversion/Delete Kit with Shocks and Suspension Warning Light Module (MK14FM)
The 2007-2012 Mercedes-Benz GL450 4MATIC 4-Wheel Air Suspension Conversion Kit With Suspension Warning Light Module (MK14FM) 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.
Convert Your AIR Suspension To Our Exclusive Passive Coil Spring System End Your Expensive Suspension Problems Forever...
Strutmasters 2007-2012 Mercedes-Benz GL450 4MATIC 4-Wheel Conversion Kit with the Suspension Warning Light Module is the perfect solution to your expensive factory suspension problems. Designed to be very affordable, you can convert your ENTIRE computerized suspension to use our exclusive premium steel coil springs and passive shocks and struts for less than the price of replacing just ONE component at the dealer.
CONVERSION KIT FEATURES:
Saves Money
Replaces Your Factory Air System
All New Components
Rides Great
No Modifications, Easy To Install
Premium Steel Coil Springs
CONVERSION KIT INCLUDES:
2 Fully Assembled Front Struts
Premium Steel Coil Springs, Front And Rear
Suspension Warning Light Delete Module
New Mounts and Necessary Hardware
Step-By-Step Detailed Installation Instructions
As Seen on Truck U!
THIS CONVERSION KIT FITS
2007 Mercedes-Benz GL450 4MATIC
2008 Mercedes-Benz GL450 4MATIC
2009 Mercedes-Benz GL450 4MATIC
2010 Mercedes-Benz GL450 4MATIC
2011 Mercedes-Benz GL450 4MATIC
2012 Mercedes-Benz GL450 4MATIC
Product Notes:
INCLUDES the suspension warning light elimination module (recommended on vehicles with active suspension on all four wheels)
This kit fits models with and without Active Dampening Suspension!
Replaced Components
The 2007-2012 Mercedes-Benz GL450 4MATIC is built with the following suspension components:
2007-2012 Mercedes-Benz GL450 4MATIC Air Struts (models with Active Dampening Suspension) (x2) - shocks whose dampening capabilities are controlled by the suspension control module.
2007-2012 Mercedes-Benz GL450 4MATIC Coilover Struts (models without Active Dampening Suspension) (x2) - A type of shock absorber, it is a piece of 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. Coil springs fit around the top portion of the struts and hold the vehicle up, they are rated for and designed to work with the rest of the suspension system.
2007-2012 Mercedes-Benz GL450 4MATIC Shock Absorbers (x2) - a 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. 2
007-2012 Mercedes-Benz GL450 4MATIC Air Springs (x2) - 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.
2007-2012 Mercedes-Benz GL450 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.
2007-2012 Mercedes-Benz GL450 4MATIC Air Lines - tubes that run from a compressor to the air springs, which carry pressurized air to the air bags.
2007-2012 Mercedes-Benz GL450 4MATIC Solenoids (models with Active Dampening Suspension) (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.
2007-2012 Mercedes-Benz GL450 4MATIC Compressor Assembly - creates/sends pressurized air 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.
2007-2012 Mercedes-Benz GL450 4MATIC Suspension Control Module - a computer which is responsible for the operations of the air suspension system and maintaining the vehicles correct ride height.
2007-2012 Mercedes-Benz GL450 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
If the 2007-2012 Mercedes-Benz GL450 is unable to meet and maintain its proper ride height, the air suspension system may be leaking or going bad. Look for the following signs that indicate a failed suspension before it's too late and total failure sets in. The most noticeable sign is a sudden height variance between different sides of the GL450. Look for a sagging rear end, an inflated front end, a shifting lean from one side to the other, or an overall, squatting appearance. These imbalances will wear out the air compressor if they aren't fixed promptly. If the air compressor has already ceased working, a suspension warning light will illuminate on the interior instrument cluster. To avoid this worst-case scenario, repair any suspension issue as soon as it presents itself.
OEM Replacement Cost
Front Air Struts (w/Active Dampening System) ($1,080/strut)
Rear Air Strut (w/ADS) ($556/strut)
Air Compressor Assembly ($420)
Pressure Accumulator (w/ADS) ($300)
= TOTAL: Over $3,900 (and that doesn't even include replacing electronic components that are known to fail such as the height sensors).
Aftermarket Replacement Cost
Front Air Struts (w/Active Dampening System) ($650/strut)
Rear Air Strut ($680/strut)
Air Compressor Assembly ($490)
Pressure Accumulator ($230)
= TOTAL: Over $3,300 (and that doesn't even include replacing electronic components that are known to fail such as the height sensors).
The various parts that comprise the air suspension system on the 2007-2012 GL450 4Matic must always function in unison. When one part stops working, the rest follow suit. Strutmasters' air to non-air suspension conversion kit eliminates this dependency for good. The kit, made in the USA, comes with two fully assembled front struts and premium steel coil springs with mounts and a suspension warning light elimination module. Detailed instructions and online installation videos help customers get the kit installed quickly.
These quality parts are backed by Strutmasters' Lifetime Limited Warranty. Strutmasters' ASE-certified experts are on-hand to answer any questions and concerns. And if that isn't enough, the price of the kit is considerably less than dealership replacement and individual aftermarket part replacement. Taking all of these factors into account, it becomes clear this coil over suspension conversion kit is the smartest choice.
I love it; it's a much more reliable driving experience now. I could not tell the difference in the driving of the car
john S.
Fitment was perfect! Great directions, easy to follow, great pictures!
Truck rides outstanding!
You guys should be proud of the great products you produce!
Thanks!!
Mike Z.
It took a day to install the kit but it is a great replacement for the air ride without any worries about the malfunction lights or air compressor break downs. The ride is smooth and comfortable.
Peter A.
I finally decided to do the conversion and I must say the ride quality didn't really change much. Now I no longer have to worry about air bags popping or any leakage in the airmatic system. And I don't have to be embarassed about my car drooping forward or tilted to one corner anymore. Thanks Strutmasters!
BRANDON W.
Very good fit, high quality parts. The Stance is perfect!
Chinedu N.
Strutmasters coilovers replacement for my 2007 GL450 is a money saver. My GL rides and handles well exactly like the airmatic suspension. The ride height perfect.
Above all, I have peace of mind knowing that I am not going to worry about the airmatic suspension failure.
Thank you so much Strutmasters.
Darwin D.
Awesome product, very straightforward installation, i love it
Ronald L H.
Great so far but a lot of work to install
Trevor B.
Rides great like a new car
Louassou D.
I have nothing but good things to say about this product. The ride is a bit different which I expected but overall it feels comfortable. Knowing that I no longer have to worry about my car being unbalanced is simply a great peace of mind. Thank you to STRUTMASTERS and especially Darell for your availability and swiftness in helping me get back on the road. I would definitely recommend this product to anyone looking to save time and money and get rid of their OEM suspension problem once in for all.
Richard D.
Very happy thank You
Luke M.
I haven’t hooked up the control module yet but everything else is installed and the suv handles great. If you’re having continued airride issues like I was this is definitely the route to go. The only issues I ever had with this rig was always related to the air suspension. Now I don’t have to worry about it anymore and I couldn’t be happier about it. Cheers!
Euodia L.
It works perfectly
Donald C.
I'm truly impressed with the service. I received my strut master order for my 2012 Mercedes gl450 i a timely manner and had my local shop install it . I drove the car @ 80 miles an hour on the freeway and what a pleasant surprise at the smooth ride and no alignment was needed . Top tier product ! Thank you strut masters no more aie suspension problems
Donnie Caison from Nokesville va
CYNTHIA L.
Works good and easy to install
Barry M.
The conversion worked excellently, rides smooth and even! I wish I'd known about it sooner!
Ray M.
Components fit like a glove & excellent customer support
Hermann F.
I ordered this last week and installed on the weekend. I have been driving for coupe of days. The part is just perfect. It came with every accessory included the delete light module. It was well installed and driving smoothly. I barely fell the difference on wheels compare with the air suspension.
Strut master is the best…….
Ivan G.
Very impressed and satisfied with the product left it just at the right level and well balanced giving my truck a very smooth drive will definitely shop from here again.
Stephanie D.
resolved the suspension issue and took care of the malfunction. The driver is glad to not spend as much on this repair as it would cost to fix the air suspension system.
Israel G.
It was the best thing I did, my truck runs like new I would recommend it to everyone
Ted C.
I own a 2008 Mercedes GL450, bot it used at a very good price, a few years go by and the air suspension went bad, got a verbal rough estimate and it would have cost me over $5k, which is more than what the value of the vehicle supposedly is, so I looked at doing it myself, found the strut from strutmaster and put them on, I just got done and took it to get an all wheel alignment and everything was good, did not need any adjustments. Was easy to do them myself (with the help of my brother) and it saved me thousands of dollars. Very happy with my purchase, recommend this to anyone. Thank you, Ted.
Ed H.
I am so glad that I bought the strut master conversion kit to finally be done with the airmatic system on my 2012 Mercedes GL450. It is so nice to be able to drive without getting the dreaded “malfunction” display because one of my airbags is not inflated properly. I wish I would have converted years ago. I would highly recommend the conversion kit to anyone.
Gary N.
Module installed according to instructions
Don B.
My 2009 Mercedes GL450 ride is nice with the upgraded spring conversion. I think better than air and I don’t worry about my wife driving the SUV with the faulty air springs. High quality, good looking and you can do it yourself if you have the right tools
Raj Auto C.
Good customer support and works good
Marvin W.
Your cusrtomer sercvise people are great!
Suspension kit rides smooth.
Only problem is the light on the instruenty panel still indicat4as a problem.
What gives?
How does the mechanic clear the dash light?
Pllease let me know.
Thank you,
Marvin Wren
Mario Z.
Bravo, great Equipment.
Pablo C.
Great solution for the long issue with air suspension in my SUV. The ride is a bit firmer than the air suspension one (as expected) but the result has been excellent! I would recommend this as a consideration for continued problems with air suspension systems.
Regan B.
Car is nice and level. The ride isn’t as good as air ride but I didn’t expect it to. Overall good experience.
Benedict U.
There is nothing like positive integrity. You said what you would do and you did what you said.
I will do business with you again.
Nuff said.
Ben
Lance T.
Everything fit as expected! Rides well and handles well!
2012 Mercedes GL 450 Replaced Springs Struts and Rear shocks.
The module that takes care of the suspension light worked flawlessly!
Christopher M B.
I did a coil over on my R class 7 years ago and just coiled over my GL450 2012 and I cannot be happier. Now I don't have to worry about a airbag busting at the most inopportune time. If you airmatic pump is making a rattling noise you need to unplug it after the install.
Gloria V.
Your struts are high quality and our shop has been happy with them.
yogesh t.
Problem solved, worked great.
Rodrick Y.
My truck is running pretty nice now
Robert B.
Good Quality product. My customer is Happy!
Patrick T.
The printed directions was great .Pics and even what wrench or socket to use.I am not a mechanic by trade I am an IT guy but it was very straight forward and direct.Not easy but not hard .Thanks alot
Dave S.
Worked great
Jacob M.
The conversion kit I received from StrutMasters was delivered quickly, with all expected parts and instructions. The install was simple and the ride is perfect. No more leaky air bags! Thanks StrutMasters!
Sincerely!
Jake
Dustin M.
THESE WORKED GREAT AND WERE EASY TO INSTALL
Garland S.
With absolutely no experience....I was able to get it done..... wasn't easy but saved a lot of
Charles N.
Very economically and pocket friendly. I am getting used to driving and the car is blending together slight feelings on some of the bumps
Ericka B.
Easy
Ada W.
I love the way my 2012 GL 450 rides since having the Suspension Conversion Kit installed! No more worries about blown air bags in the strut's and compressor failing... Best decision I ever made!!!
Foreign Car R.
Very good customer service , thank you
Krause Automotive and E.
Install is easy takes longer than the book says but overall good quality product, slightly more vibration than before but totally acceptable
Daniel H.
good instructions , done in my garage in 6 hrs
car rides like new , verry happy with the purchase
don't have to deal with air leaks anymore
will come back with update after one year of usage
ALLAN T.
Love the suspension but the malfunction code from the bypass is not working
Alexander's M.
Everything came very quick,great packaging ,little box for computer almost was missing(need to be in bigger box or set it in struts box) Little box came 2 days later with apology from FedEx guy.
Installation went quick and easy with your manual.To Connect a Little computer was bit complicated but manual was very close.
My customer very happy with that update on car.No more troubles with air suspension.
Thank you ,so much!!!
TERRY H.
I love it; it's a much more reliable driving experience now. I could not tell the difference in the driving of the car
john S.
Fitment was perfect! Great directions, easy to follow, great pictures!
Truck rides outstanding!
You guys should be proud of the great products you produce!
Thanks!!
Mike Z.
It took a day to install the kit but it is a great replacement for the air ride without any worries about the malfunction lights or air compressor break downs. The ride is smooth and comfortable.
Peter A.
I finally decided to do the conversion and I must say the ride quality didn't really change much. Now I no longer have to worry about air bags popping or any leakage in the airmatic system. And I don't have to be embarassed about my car drooping forward or tilted to one corner anymore. Thanks Strutmasters!
BRANDON W.
Very good fit, high quality parts. The Stance is perfect!
Chinedu N.
Strutmasters coilovers replacement for my 2007 GL450 is a money saver. My GL rides and handles well exactly like the airmatic suspension. The ride height perfect.
Above all, I have peace of mind knowing that I am not going to worry about the airmatic suspension failure.
Thank you so much Strutmasters.
Darwin D.
Awesome product, very straightforward installation, i love it
Ronald L H.
Great so far but a lot of work to install
Trevor B.
Rides great like a new car
Louassou D.
I have nothing but good things to say about this product. The ride is a bit different which I expected but overall it feels comfortable. Knowing that I no longer have to worry about my car being unbalanced is simply a great peace of mind. Thank you to STRUTMASTERS and especially Darell for your availability and swiftness in helping me get back on the road. I would definitely recommend this product to anyone looking to save time and money and get rid of their OEM suspension problem once in for all.
Richard D.
Very happy thank You
Luke M.
I haven’t hooked up the control module yet but everything else is installed and the suv handles great. If you’re having continued airride issues like I was this is definitely the route to go. The only issues I ever had with this rig was always related to the air suspension. Now I don’t have to worry about it anymore and I couldn’t be happier about it. Cheers!
Euodia L.
It works perfectly
Donald C.
I'm truly impressed with the service. I received my strut master order for my 2012 Mercedes gl450 i a timely manner and had my local shop install it . I drove the car @ 80 miles an hour on the freeway and what a pleasant surprise at the smooth ride and no alignment was needed . Top tier product ! Thank you strut masters no more aie suspension problems
Donnie Caison from Nokesville va
CYNTHIA L.
Works good and easy to install
Barry M.
The conversion worked excellently, rides smooth and even! I wish I'd known about it sooner!
Ray M.
Components fit like a glove & excellent customer support
Hermann F.
I ordered this last week and installed on the weekend. I have been driving for coupe of days. The part is just perfect. It came with every accessory included the delete light module. It was well installed and driving smoothly. I barely fell the difference on wheels compare with the air suspension.
Strut master is the best…….
Ivan G.
Very impressed and satisfied with the product left it just at the right level and well balanced giving my truck a very smooth drive will definitely shop from here again.
Stephanie D.
resolved the suspension issue and took care of the malfunction. The driver is glad to not spend as much on this repair as it would cost to fix the air suspension system.
Israel G.
It was the best thing I did, my truck runs like new I would recommend it to everyone
Ted C.
I own a 2008 Mercedes GL450, bot it used at a very good price, a few years go by and the air suspension went bad, got a verbal rough estimate and it would have cost me over $5k, which is more than what the value of the vehicle supposedly is, so I looked at doing it myself, found the strut from strutmaster and put them on, I just got done and took it to get an all wheel alignment and everything was good, did not need any adjustments. Was easy to do them myself (with the help of my brother) and it saved me thousands of dollars. Very happy with my purchase, recommend this to anyone. Thank you, Ted.
Ed H.
I am so glad that I bought the strut master conversion kit to finally be done with the airmatic system on my 2012 Mercedes GL450. It is so nice to be able to drive without getting the dreaded “malfunction” display because one of my airbags is not inflated properly. I wish I would have converted years ago. I would highly recommend the conversion kit to anyone.
Gary N.
Module installed according to instructions
Don B.
My 2009 Mercedes GL450 ride is nice with the upgraded spring conversion. I think better than air and I don’t worry about my wife driving the SUV with the faulty air springs. High quality, good looking and you can do it yourself if you have the right tools
Raj Auto C.
Good customer support and works good
Marvin W.
Your cusrtomer sercvise people are great!
Suspension kit rides smooth.
Only problem is the light on the instruenty panel still indicat4as a problem.
What gives?
How does the mechanic clear the dash light?
Pllease let me know.
Thank you,
Marvin Wren
Mario Z.
Bravo, great Equipment.
Pablo C.
Great solution for the long issue with air suspension in my SUV. The ride is a bit firmer than the air suspension one (as expected) but the result has been excellent! I would recommend this as a consideration for continued problems with air suspension systems.
Regan B.
Car is nice and level. The ride isn’t as good as air ride but I didn’t expect it to. Overall good experience.
Benedict U.
There is nothing like positive integrity. You said what you would do and you did what you said.
I will do business with you again.
Nuff said.
Ben
Lance T.
Everything fit as expected! Rides well and handles well!
2012 Mercedes GL 450 Replaced Springs Struts and Rear shocks.
The module that takes care of the suspension light worked flawlessly!
Christopher M B.
I did a coil over on my R class 7 years ago and just coiled over my GL450 2012 and I cannot be happier. Now I don't have to worry about a airbag busting at the most inopportune time. If you airmatic pump is making a rattling noise you need to unplug it after the install.
Gloria V.
Your struts are high quality and our shop has been happy with them.
yogesh t.
Problem solved, worked great.
Rodrick Y.
My truck is running pretty nice now
Robert B.
Good Quality product. My customer is Happy!
Patrick T.
The printed directions was great .Pics and even what wrench or socket to use.I am not a mechanic by trade I am an IT guy but it was very straight forward and direct.Not easy but not hard .Thanks alot
Dave S.
Worked great
Jacob M.
The conversion kit I received from StrutMasters was delivered quickly, with all expected parts and instructions. The install was simple and the ride is perfect. No more leaky air bags! Thanks StrutMasters!
Sincerely!
Jake
Dustin M.
THESE WORKED GREAT AND WERE EASY TO INSTALL
Garland S.
With absolutely no experience....I was able to get it done..... wasn't easy but saved a lot of
Charles N.
Very economically and pocket friendly. I am getting used to driving and the car is blending together slight feelings on some of the bumps
Ericka B.
Easy
Ada W.
I love the way my 2012 GL 450 rides since having the Suspension Conversion Kit installed! No more worries about blown air bags in the strut's and compressor failing... Best decision I ever made!!!
Foreign Car R.
Very good customer service , thank you
Krause Automotive and E.
Install is easy takes longer than the book says but overall good quality product, slightly more vibration than before but totally acceptable
Daniel H.
good instructions , done in my garage in 6 hrs
car rides like new , verry happy with the purchase
don't have to deal with air leaks anymore
will come back with update after one year of usage
ALLAN T.
Love the suspension but the malfunction code from the bypass is not working
Alexander's M.
Everything came very quick,great packaging ,little box for computer almost was missing(need to be in bigger box or set it in struts box) Little box came 2 days later with apology from FedEx guy.
Installation went quick and easy with your manual.To Connect a Little computer was bit complicated but manual was very close.
My customer very happy with that update on car.No more troubles with air suspension.
Thank you ,so much!!!
(866) 597-2397
