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- Why Strutmasters
- OEM Numbers
THIS KIT FITSPLEASE NOTE: This product will fit if you have air suspension in the rear ONLY and standard suspension in the front of your vehicle. If your vehicle has air suspension on all 4 corners, a 4-wheel conversion kit will be required to fix your suspension. Please give us a call if you aren't sure.
- 2009 Mercedes-Benz GL 320 BLUETEC DIESEL
Convert Your AIR Suspension To A Coil Spring Suspension End Your Suspension Problems Forever...
Strutmasters 2009 Mercedes-Benz GL 320 BLUETEC DIESEL Rear Conversion Kit is the perfect solution to your rear suspension problems. Designed to be very affordable, you can convert your rear suspension to use coil springs for less than the price of replacing one Air Spring.
- Saves Money
- Replaces Your Rear Air System
- All New Components
- Rides Great
- No Modifications Required To Install
- Easy To Install
- Premium Springs
- 2 Rear Springs
- New Mounts
- All Necessary Hardware
- Detailed Instructions
The 2009 Mercedes-Benz GL 320 BlueTEC Diesel is built with the following rear suspension components:
2009 Mercedes-Benz GL 320 BlueTEC Diesel 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.
2009 Mercedes-Benz GL 320 BlueTEC Diesel Height Sensors (x2)- 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.
2009 Mercedes-Benz GL 320 BlueTEC Diesel Air Lines- tubes that run from a compressor to the air springs, which carry pressurized air to the air bags.
2009 Mercedes-Benz GL 320 BlueTEC Diesel Solenoids (x2)- 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.
2009 Mercedes-Benz GL 320 BlueTEC Diesel 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.
2009 Mercedes-Benz GL 320 BlueTEC Diesel Suspension Control Module- a computer which is responsible for the operations of the air suspension system and maintaining the vehicles correct ride height.
2009 Mercedes-Benz GL 320 BlueTEC Diesel 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
An inability of the 2009 Mercedes-Benz GL320 BlueTEC to reach and maintain its proper ride height indicates a failed or leaking air suspension system. Look for these common signs to diagnose a bad suspension before it's too late and total failure sets in. A sudden height variance between different sides of the vehicle is a red flag. This may look like a sagging end, an inflated end, a squatting down appearance, or a shifting lean from one side to the other. These imbalances, if not fixed in a timely fashion, will wear out the air compressor. If the air compressor runs too often or has stopped working altogether, a suspension warning light will illuminate on the dash. At this point, suspension failure is advanced and a repair will be costly.
OEM Replacement Cost
- Rear Electronic Shocks ($740/shock)
- Rear Air/Hydraulic Spring ($430/spring)
- Air Compressor Assembly ($540)
- = TOTAL: Over $2,800 (and that doesnt even include replacing electronic components that are known to fail such as the height sensors).
Aftermarket Replacement Cost
- Rear Electronic Shocks ($110/shock)
- Rear Air/Hydraulic Spring ($190/spring)
- Air Compressor Assembly ($680)
- = TOTAL: Over $1,200 (and that doesn't even include replacing electronic components that are known to fail such as the height sensors).